furnival house site investigation

Report No D4061-14 FURNIVAL HOUSE, HIGHGATE, NORTH LONDON FACTUAL REPORT ON GROUND INVESTIGATION Carried out for: City Basements Limited September 2014

www.esg.co.uk Environmental Scientifics Group Limited

Reg office: ESG House, Bretby Business Park, Ashby Road, Burton upon Trent, DE15 0YZ Incorporated in England: 02880501

Issue No Date Details 1 September 2014 Final Report

Rev.1 September 2014 Final Report (revised borehole logs)

The title to this report is vested in the Employer named but title to copyright is retained. The Contracts (Rights of Third Parties) Act 1999 does not apply to the contract with the Employer and the provisions of the said Act are hereby excluded.

FURNIVAL HOUSE, HIGHGATE, NORTH LONDON FACTUAL REPORT ON GROUND INVESTIGATION

Glossop House, Hogwood Lane, Wokingham, Berkshire, RG40 4QW, UK

Tel: +44 (0) 118 932 8888 Fax: +44 (0) 118 932 8383 email: [email protected]

Report No: D4061-14

Date: September 2014

Employer: City Basements Limited Harrow Middlesex HA3 5QY

Engineer: As Employer

September 2014 Report No D4061-14 Issue 1 Rev.1 Page 1 of 5

C O N T E N T S Page 1 INTRODUCTION 2 2 THE SITE AND GEOLOGY 2 2.1 The Site 2.2 Published Geology 3 FIELDWORK 3 3.1 General 3.2 Exploratory Holes 3.3 Instrumentation and Monitoring 3.4 In Situ Testing 4 LABORATORY TESTING 4 REFERENCES 5 ENCLOSURES A EXPLORATORY HOLE RECORDS B INSTRUMENTATION AND MONITORING C IN SITU TESTING D GEOTECHNICAL LABORATORY TEST RESULTS E DRAWINGS


1 INTRODUCTION

In June 2014 Environmental Scientifics Group (ESG) was commissioned by City Basements

Limited (CB), to carry out a ground investigation at Furnival House in Highgate, North London. The

investigation was required to obtain geotechnical information so that the findings could be

compared and contrasted to those of a previous investigation carried out by others.

The scope of the investigation, which was provided by CB, comprised cable percussive boring and

laboratory testing. The scope was subsequently modified in an email dated 21 July 2014 to include

rising head permeability testing in the post-fieldwork period.

The investigation was carried out in accordance with the contract specification, Eurocode 7 and

relevant related standards identified below (see also References). The fieldwork was carried out

between 8 and 11 July 2014.

This report presents the factual records of the fieldwork and laboratory testing.

2 THE SITE AND GEOLOGY

2.1 The Site

Furnival House is situated in Highgate, North London; see Site Location Plan in Enclosure E. The

site is at National Grid reference TQ287 874.

The site is centred on Furnival House, a Grade II listed building surrounded by woodland to the

north and with a macadam car park immediately to the south. Cholmeley Park road runs along the

south and east off which access is gained to the south and west of the site via a driveway.

At the time of the investigation the basement of Furnival House was being excavated.

2.2 Published Geology

The published geological map covering the site, BGS Sheet 256, North London (2006), shows the

Bagshot Formation overlying the Claygate Member of the London Clay Formation.


3 FIELDWORK

3.1 General

The fieldwork was carried out in general accordance with BS 5930+A2 (2010), BS EN 1997-2

(2007) and BS EN ISO 22475-1 (2006).

The exploratory hole locations were selected by CB. The locations were set out from local

features. The exploratory hole locations are shown on the Site Plan in Enclosure E.

3.2 Exploratory Holes

The exploratory holes are listed in the following table.

SUMMARY OF EXPLORATORY HOLES

TYPE QUANTITY MAXIMUM DEPTH (m) REMARKS

Cable Percussion Boring 2 23.00 Designated TBH1 & TBH2

The exploratory hole records are presented in Enclosure A and should be read in conjunction with

the Key which is included in that enclosure. The records provide descriptions of the materials

encountered in accordance with BS EN ISO 14688-1 (2002) for soils, as amplified by BS 5930+A2

(2010). The records also give details of the samples taken together with observations made during

boring.

On completion of the fieldwork geotechnical samples were transported to the Wokingham office of

ESG for temporary retention. Samples that were required for testing were transferred to the in-

house laboratory in Daventry.

3.3 Instrumentation and Monitoring

The instruments installed in the exploratory holes are shown on the logs and detailed in

Enclosure B. Records of groundwater monitoring carried out by ESG after the fieldwork period are

presented in Enclosure B.


3.4 In Situ Testing

In situ testing was carried out in accordance with the relevant standards as tabulated below. The

testing is summarised in the following table and the results are presented in Enclosure C.

SUMMARY OF IN SITU TESTING

TYPE QUANTITY REMARKS

Rising Head Permeability 2 BS 5930+A2 (2010)

4 LABORATORY TESTING

The testing was scheduled by CB and was carried out in accordance with BS 1377 (1990). The

testing is summarised below and the results are presented in Enclosure D.

SUMMARY OF GEOTECHNICAL LABORATORY TESTING

TYPE REMARKS

Moisture Content Determination 26no.

Atterberg Limit Determination 26no.

Particle Size Distribution Analysis 7no.

Unconsolidated Undrained Triaxial Compression Testing 4no.

Prepared By G Simmons BSc MSc

Reviewed By D Beskeen BSc

Approved for Issue By D Beskeen BSc


REFERENCES

BGS England and Wales Sheet 256, North London (2006) 1:50 000 geological map (drift and solid). British Geological Survey.

BS 1377 : 1990 : Methods of test for soils for civil engineering purposes. British Standards Institution.

BS 5930+A2 : 2010 : Code of practice for site investigations (Amendment 2). British Standards Institution.

BS EN 1997-2 : 2007 : Eurocode 7 - Geotechnical design - Part 2 Ground investigation and testing. British Standards Institution.

BS EN ISO 14688-1 : 2002 : Geotechnical investigation and testing - Identification and classification of soil - Part 1 Identification and description. British Standards Institution.

BS EN ISO 22475-1 : 2006 : Geotechnical investigation and testing Sampling methods and groundwater measurements - Part 1 Technical principles for execution. British Standards Institution.

September 2014 Report No D4061-14 Issue 1 Rev.1 Enclosure A

ENCLOSURE A EXPLORATORY HOLE RECORDS

Key to Exploratory Hole Records KeyBorehole Logs TBH1 & TBH2Cable Percussion Daily Record TBH1 & TBH2

Notes: See report text for full references of standards

Project

Project No. Carried out for

Furnival House, Highgate, North London

D4061-14City Basements Limited

KeySheet 1 of 2

Key to Exploratory Hole Records

SAMPLES Undisturbed U UT TW P L CBR BLK CS AMAL

Driven tube sample Driven thin wall tube sample nominally 100 mm diameter and full recovery unless otherwise stated Pushed thin wall tube sample Pushed piston sample Liner sample (from Windowless or similar sampler), full recovery unless otherwise stated CBR mould sample Block sample Core sample (from rotary core) taken for laboratory testing Amalgamated sample

Disturbed D B

Small sample Bulk sample

Other W G ES EW

Water sample Gas sample Environmental chemistry samples (in more than one container where appropriate) Soil sample Water sample

Comments Sample reference numbers are assigned to every sample taken. A sample reference of 'NR' indicates that attempt was made to take a tube sample, however, there was no recovery. Monitoring samples taken after completion of hole construction are not shown on the exploratory hole logs.

TESTS SPT S or SPT C IV HV PP KFH, KRH, KPI

Standard Penetration Test, open shoe (S) or solid cone (C) The Standard Penetration Test is defined in BS EN ISO 22476-3 (2005). The incremental blow counts are given in the Field Records column; each increment is 75 mm unless stated otherwise and any penetration under self weight in mm (SW) is noted. Where the full 300 mm test drive is achieved the total number of blows for the test drive is presented as N = ** in the Test column. Where the test drive blows reach 50 the total blow count beyond the seating drive is given (without the N = prefix). in situ Vane shear strength, peak (p) and remoulded (r) Hand vane shear strength, peak (p) and remoulded (r) Pocket penetrometer test, converted to shear strength Permeability tests (KFH = falling head, KRH = rising head; KPI = packer inflow); results provided in Field Records column (one value per stage for packer tests)

DRILLING RECORDS The mechanical indices (TCR/SCR/RQD & If) are defined in BS 5930+A2 (2010)

TCR SCR RQD If

Total Core Recovery, % Solid Core Recovery, % Rock Quality Designation, % Fracture spacing, mm. Minimum, typical and maximum spacings are presented. The term non-intact (NI) is used where the core is fragmented.

Flush returns, estimated percentage with colour where relevant, are given in the Records column CRF AZCL NR

Core recovered (length in m) in the following run Assessed zone of core loss Not recovered

GROUNDWATER

Groundwater strike Groundwater level after standing period

Notes: See report text for full references of standards

Project

Project No. Carried out for



KeySheet 2 of 2

Key to Exploratory Hole Records

INSTALLATION Standpipe/ piezometer SP SPIE PPIE EPIE Inclinometer or Slip Indicator ICE ICM SLIP Settlement Points or Pressure Cells ESET ETM EPCE PPCE

Details of standpipe/piezometer installations are given on the Record. Legend column shows installed instrument depths including slotted pipe section or tip depth, response zone filter material type and layers of backfill. The type of instrument installed is indicated by a code in the Legend column at the depth of the response zone: Standpipe Standpipe piezometer Pneumatic piezometer Electronic piezometer The installation of vertical profiling instruments is indicated on the Record. The base of tubing is shown in the Legend column. The type of instrument installed is indicated by a code in the Legend column at the base of the tubing: Biaxial inclinometer Inclinometer tubing for use with probe Slip indicator The installation of single point instruments is indicated on the Record. The location of the measuring device is shown in the Legend column. The type of instrument installed is indicated by a code in the Legend column: Electronic settlement cell/gauge Magnetic extensometer settlement point Electronic embedment pressure cell Electronic push in pressure cell

INSTALLATION LEGENDS

A legend describing the installation is shown in the rightmost column. Legends additional to BS5930 are used to describe the backfill materials as indicated below.

Arisings

Concrete

Grout

Bentonite

Sand

Gravel

Macadam

NOTES 1 2 3 4 5 6 7 8

Soils and rocks are described in accordance with BS EN ISO 14688-1 (2002) and 14689-1 (2003) respectively as amplified by BS 5930+A2 (2010). For fine soils, consistency determined during description is reported for those strata where undisturbed samples are available. Where the logger considers that the sample may not be representative of the condition in situ, for whatever reason, the reported consistency is given in brackets. The reliability of the sample is indicated by Probably or Possibly as appropriate. Hence (Probably firm) indicates the logger is reasonably confident of the assessment, but (Possibly firm) means less certainty. Where the samples available are too disturbed to allow a reasonable assessment of the in situ condition, no consistency is given. Evidence of the occurrence of very coarse particles (cobbles and boulders) is presented on the logs, however, because of their size in relation to the exploratory hole these records may not be fully representative of their size and frequency in the ground mass. The declination of bedding and joints is given with respect to the normal to the core axis. Thus in a vertical borehole this will be the dip. The assessment of SCR, RQD and Fracture Spacing excludes artificial fractures Strata legends are in accordance with BS 5930+A2 (2010). Water level observations of discernible entries during the advancing of the exploratory hole are given at the foot of the log and in the Legend column. The term "none observed" is used where no discrete entries are identified although this does not necessarily indicate that the hole has not been advanced below groundwater level. Under certain conditions groundwater cannot be observed, for instance, drilling with water flush or overwater, or boring at a rate much faster than water can make its way into the borehole (ref BS5930+A2:2010, Clause 47.2.7). In addition, where appropriate, water levels in the hole at the time of recovering individual samples or carrying out in situ tests and at shift changes are given in the Records column. The borehole logs present the results of Standard Penetration Tests recorded in the field without correction or interpretation. However, in certain ground conditions (eg high hydraulic head or where very coarse particles are present) some judgement may be necessary in considering whether the results are representative of in situ mass conditions.

Updated March 2012

Time Tools usedFrom to (m)

Checked

Equipment, Methods and Remarks

Backfill/

Coordinates

ChisellingDepths (m)

Samples and Tests

Project

to

No. Post strike behaviour Depth sealed

Project No.Carried out for

Diameter Casing Depth

StrataDepth Date Time Depth,Level Legend

Start

End

(Thickness)Casing Water

Groundwater EntriesStruck

Notes: For explanation of symbols and

Instruments

(m)

abbreviations see key sheet. All depths and reducedlevels in metres. Stratum thickness given in bracketsin depth column.

Description

Depth from

Borehole

Scale

Depth Related Remarks *

Drilled

Depth DateCasingTime

(m)

Ground Level

Water

Logged

Borehole LogGWJS/CPDB

08/07/2014

10/07/2014

Type & No

Type & No

Pilcon 150Hand dug inspection pit from GL to 1.20m. Cable percussive boring from1.20m to 23.00m depth.

Records

Records

426.4812/09/2014 06:11:14(c) ESG www.esg.co.uk



Stratum continues to 11.00 m

National Grid

Chainage

TBH1Sheet 1 of 3

---

8.501 Rose to 7.60 m after 20 minutes. 11.00

23.00m0.00m 150mm 17.50m

8.30-8.50 B 1

08/07/2014 0800dry

1.30

1.70

2.10

2.30

5.00

9.60

(1.30)

(0.40)

(0.40)

(2.70)

(4.60)

1

1

(MADE GROUND)Brown silty sandy CLAY fill with brick.(Drillers description)

Brown sandy CLAY with rare gravel.(Drillers description)

Soft to firm orangish brown silty sandyCLAY.(Drillers description)

Stiff brown weathered CLAY.(Drillers description)

Yellowish brown silty fine SAND.(Drillers description)

Firm to stiff brown laminated siltyCLAY.(Drillers description)

Soft grey sandy silty CLAY.

1:50

17.72-17.76 mOccasional light

pinkish brownbivalve fossils

10.20-10.60

11.00-11.45

11.4511.50-11.95

12.00-12.45

12.4512.50-12.95

12.9513.00-13.45

13.4513.50-13.95

13.9514.00-17.0014.00-14.95

14.50-14.95

14.9514.95

15.00-15.45

15.4515.50-15.95

15.95

16.50-16.95

16.9517.00-17.45

17.4517.50-17.95

17.9518.00-18.45

18.4518.50-18.95

18.9519.00-19.45

19.4519.50-19.95

19.95

B 2

UT 3

D 4UT 5

UT 7

D 8UT 9

D 10UT 11

D 12UT 13

D 14KRH

UT 15

UT 17

D 16D 18

UT 19

D 20UT 21

D 22

UT 23

D 24UT 25

D 26UT 27

D 28UT 29

D 30UT 31

D 32UT 33

D 34UT 35

D 36

7 blows

20 blows

25 blows

18 blows

23 blows

17 blows

k=1.8E-7 m/s7 blows

13 blows

12 blows

17 blows

21 blows

25 blows

26 blows

22 blows

17 blows

15 blows

13 blows

11.00

11.00

11.00

08/07/201411.0011.0009/07/201411.00

11.00

11.00

11.00

11.00

14.50

14.50

09/07/201414.50

10/07/201414.50

16.00

16.00

17.50

17.50

17.50

17.50

17.50

dry

dry

dry

1800dry

damp0800damp

damp

damp

dry

dry

damp

damp

1800damp

08009.70

14.40

15.00

17.00

damp

damp

dry

Time Tools used

dry

11.00

12.50

14.50

15.00

16.57

17.00

(1.40)

(1.50)

(2.00)

(0.50)

(1.57)

(0.43)

2

2

SP

From

(Drillers description)

Stiff to very stiff brownish grey siltyCLAY with closely spaced thin laminae ofsilt and silty fine sand.(CLAYGATE MEMBER, LONDON CLAYFORMATION)

to (m)

Stiff greyish brown to light greyishbrown thinly interlaminated silty CLAY,SILT and fine SAND. Sand is of lightgrey quartz and locally dark greenglauconite.(CLAYGATE MEMBER, LONDON CLAYFORMATION)

Firm to stiff brownish grey thinlyinterlaminated silty CLAY, SILT and fineSAND with occasional pockets of

Checked

yellowish orange and light grey finesand.(CLAYGATE MEMBER, LONDON CLAYFORMATION)

Firm to stiff brownish grey thinlyinterlaminated clayey SILT, silty CLAYand light grey to dark green siltyglauconitic fine SAND. (CLAYGATEMEMBER, LONDON CLAY FORMATION)

Stiff greyish brown to light greyish


brown silty CLAY with closely spacedbioturbated thin laminae and pockets ofsilt and fine sand. Sand is of lightgrey quartz and rare glauconite.(CLAYGATE MEMBER, LONDON CLAYFORMATION)

Very stiff grey silty CLAY withoccasional pockets/partings (

17.50

dry

dry

dry

dry

dry

dry

1800dry

23.00

(6.00)Very stiff grey silty CLAY withoccasional pockets/partings (


Checked


Backfill/

Coordinates


Samples and Tests

Project

to





Start

End




Instruments

(m)


Description

Depth from

Borehole

Scale


Drilled


(m)

Ground Level

Water

Logged


11/07/2014

14/07/2014

Type & No

Type & No


Records

Records

426.4812/09/2014 06:11:30(c) ESG www.esg.co.uk



Stratum continues to 10.30 m

National Grid

Chainage

TBH2Sheet 1 of 3

---

5.00m0.00m 200mm21.50m5.00m 150mm

5.00m16.50m

2.30

3.10

5.70-6.00

8.50-9.00

D 1

D 2

B 3

B 4

11/07/2014

11/07/20145.00

14/07/20145.00

0800dry

1800dry

0800dry

0.10

0.30

2.30

3.10

3.70

5.70

8.50

(2.00)

(0.80)

(0.60)

(2.00)

(2.80)

(1.80)

(MADE GROUND)CONCRETE(Drillers description)

(MADE GROUND)Rubble/fill(Drillers description)

(MADE GROUND)Yellowish brown silty SAND with brick.(Drillers description)

(MADE GROUND)Orangish brown SAND AND GRAVEL withbrick fragments.(Drillers description)

Firm orangish brown, yellowish brown andgrey CLAY with frequent silt and finesand laminae. Occasional thin laminae ofcemented siltstone. Occasional rootsand rootlets.(BAGSHOT FORMATION)

Brown silty SAND.(Drillers description)(BAGSHOT FORMATION)

Soft to firm light grey and greyishbrown mottled dark orange and reddishbrown CLAY locally grading to fine sandysilty clay.(BAGSHOT FORMATION)

Brown and dark grey sandy silty CLAY.Recovered soft.(CLAYGATE MEMBER, LONDON CLAYFORMATION)

1:50

19.27-19.40 mAbundant

pockets


Checked


Backfill/

Coordinates


Samples and Tests

Project

to





Start

End




Instruments

(m)


Description

Depth from

Borehole

Scale


Drilled


(m)

Ground Level

Water

Logged


11/07/2014

14/07/2014

Type & No

Type & No


Records

Records

426.4812/09/2014 06:11:37(c) ESG www.esg.co.uk



(Continued from Sheet 2)(Continued from Sheet 2)

National Grid

Chainage

TBH2Sheet 3 of 3

---

5.00m0.00m 200mm21.50m5.00m 150mm

5.00m16.50m

:: 19.27m - x10mm x 10mm

of dark greenglauconitic clay

and silty clay.Pockets are

roughly tubular inshape, inclined

70 to 80 deg.20.00-20.22 m

Rare pockets ofsand

20.71-20.83 mFrequent

pockets

GGary Wheeler Drilling

Strata Details Samples/Testing Chiselling/Pits

Depth DescriptionNO Type

SPT TestN Value or Blows

Water Level

Casing Depth

Casing Diam.

Hours

From TOSeating Blows Test From (depth)

GL Brown silty sandy clay fill with brick fill 1 2 3 4 5 6 To (depth)

1.30 Brown sandy CLAY with some gravel traces 1 8.30 8.50 B Pit Dimensions

1.70 Soft to firm orange brown silty very sandy CLAY 2 10.20 10.60 B Groundwater Records

2.10 Stiff brown weathered CLAY 3 11.00 11.45 U 7 DRY 11.00 150MM Water Strikes2.30 Fine yellow /broown silty SAND 4 SHOE 11.50 D Depth 8.50

5.00 Soft brown sandy silt 5 11.50 11.95 U NO SHOE SAMPLE 20 DRY 11.00 150MM Casing Depth 8.509.60 Firm to stiff brown laminated silty CLAY 7 12.00 12.45 U 25 DRY 11.00 150MM Inflow Rate MED 10.20 Soft grey silty sandy CLAY 8 SHOE 12.50 D Rose 20 mins 7.60

11.75 Stiff grey fissured CLAY (during u/100 @ 11.50m) Sealed at 11.00

Water level at start of boring

Water level at end of boring DRY

Water added from

Water added to

Type From To

Plain

Slotted

Gravel Filter

Bentonite

Bentonite

Bentonite

Tarmac

Screened (Yes/No)

Gas Tap (Yes/No)

12.50 END OF SHIFT Cover (Flush/Raised)

Diameter of Pipe mm

WAITING FOR BOREHOLE POSITION AND TAKE INDUCTIONS (1 1/4HRS) DIGGING SERVICE PIT (3/4HR ) GOING TO SITE IN LONDON TO FETCH EXTRA CASINRig Type

Foreman G WHEELER

BOREHOLE DAMP FROM 4.10MDay TUESDAY

Dates 08/07/2014

U100/T 3 Contam Dist 2 Bulk 2 C/SPT Job NumberD4061-14

GARY WHEELER DRILLING Cable Percussion Daily Record SITE FURNIEAL HOUSE CLIENT BH No. TBH1

1

P1

O

Gary Wheeler Drilling




Water Level

Casing Depth

Casing Diam.

Hours


12.50 Stiff grey fissured CLAY 1 2 3 4 5 6 To (depth)

14.20 Soft grey very silty very sandy CLAY with a brown mottling (during 9 12.50 12.95 U 18 WET 11.00 150MM Pit Dimensionsu/100 @ 14 .00m ) 10 SHOE 13.00 D Groundwater Records

14.75 Stiff grey very silty very sandy CLAY with a brown mottling (during 11 13.00 13.45 U 23 WET 11.00 150MM Water Strikesu/100 @ 14.50m ) 12 SHOE 13.50 D Depth 15.00

15.25 Firm grey very silty very sandy CLAY with a brown mottling (during 13 13.50 13.95 U 17 WET 11.00 150MM Casing Depth 14.50u/100 @ 15 .00m ) 14 SHOE 14.00 D Inflow Rate MED

15 14.00 14.45 U 7 DRY 11.00 150MM Rose 20 mins 14.6016 SHOE 14.50 D Sealed at

17 14.50 14.95 U 13 DRY 11.00 150MM Water level at start of boring18 SHOE 15.00 D Water level at end of boring WET

19 15.00 15.45 U 12 WET 14.50 150MM Water added from20 SHOE 15.50 D Water added to

21 15.50 15.95 U 17 WET 14.50 150MM22 SHOE 16.00 D Type From To

Plain

Slotted

Gravel Filter

Bentonite

Bentonite

Bentonite

Tarmac

Screened (Yes/No)

Gas Tap (Yes/No)


Diameter of Pipe mm

WAITING FOR ENGINEER SO I COULD DRILL BOREHOLE 8AM 10AM (2HRS) TOLD NO MATTER WHAT THE COST TO DRILL CORRECTLY AND TO DEPTH NO MATTER WHAT THE CRig Type

THE CLIENT SAID HE WOULD HAVE MY CASING PICKED UP FOR ME FROM ANOTHER SITE OF MINE SO I COULD CARRY ON DRILLING .AT 12.30PM THE DRIVER HAD LEFT TO PICK UForeman G WHEELER

CASING FROM WATFORD . I COULD NOT CARRY ON DRILLING AS BOREHOLE WAS CALLAPSING 12.30PM-200PM WAITING FOR CASING LEFT SITE AS CASING WOULD BE AT LEAST Day WEDNESDAY

DAYRATE CHARGED Dates 09/07/2014

U100/T 7 Contam Dist 7 Bulk C/SPT Job NumberD4061-14

GARY WHEELER DRILLING Cable Percussion Daily Record SITE FURNIVAL HOUSE CLIENT BH No. TBH1

1

5Gary Wheeler Drilling




Water Level

Casing Depth

Casing Diam.

Hours


16.00 Firm grey very silty very sandy CLAY with a brown mottling 1 2 3 4 5 6 To (depth)

23 16.50 16.95 U 21 14.40 16.00 150MM Pit Dimensions17.80 Stiff grey very silty very sandy CLAY during u/100 @ 17.50 24 SHOE 17.00 D Groundwater Records

25 17.00 17.45 U 25 15.00 16.00 150MM Water Strikes17.80 Firm grey very silty very sandy CLAY with a brown mottling 26 SHOE 17.50 D Depth

27 17.50 17.95 U 26 17.00 17.50 150MM Casing Depth18.90 As above with some very small amounts of shells 28 SHOE 18.00 D Inflow Rate

29 18.00 18.45 U 22 WET 17.50 150MM Rose 20 mins21.30 Stiff grey very silty very sandy CLAY during u/100 @ 21-OOM 30 SHOE 18.50 D Sealed at

31 18.50 18.95 U 17 WET 17.50 150MM Water level at start of boring 9.7032 SHOE 19.00 D Water level at end of boring

33 19.00 19.45 U 15 DRY 17.50 150MM Water added from34 SHOE 19.50 D Water added to

35 19.50 19.95 U 13 DRY 17.50 150MM36 SHOE 20.00 D Type From To

37 20.00 20.45 U 20 DRY 17.50 150MM Plain 14.00 GL38 SHOE 20.50 D Slotted 17.00 14.00

39 20.50 20.95 U 20 DRY 17.50 150MM Gravel Filter 17.00 13.8040 SHOE 21.00 D Bentonite 23.00 17.00

41 21.00 21.45 U 23 DRY 17.50 150MM Bentonite 13.80 10.0042 SHOE 21.50 D Backfill 10.00 0.30

43 21.50 21.95 U 36 DRY 17.50 150MM Concrete 0.30 GL44 SHOE 22.00 D Screened (Yes/No) YES

45 22.00 22.45 U 50 DRY 17.50 150MM Gas Tap (Yes/No) YES23.00 END OF BOREHOLE 46 SHOE 22.50 D Cover (Flush/Raised) FLUSH

47 22.50 22.95 U NO SHOE SAMPLE 50 DRY 17.50 1 Diameter of Pipe mm 50

SLOW PROGRESS DRILLING FROM 16.00M 17.50M (2 1/4 HRS)Rig Type

Foreman G WHEELER

DURING INSTALLATION BOREHOLE TOOK A LOT OF SAND OVER THE SLOTTED SECTION POSSIBLE VOID CREATED THROUGH DRILLING Day THURSDAY

Dates 10/07/2014



1





Water Level

Casing Depth

Casing Diam.

Hours


GL Concrete 1 2 3 4 5 6 To (depth)

0.10 Rubble fill 1 2.30 D Pit Dimensions

0.30 fine yellow brown silty sand with brick fil 2 3.10 D Groundwater Records

2.30 Orange brown sand with gravel and some brick fill fragments Water Strikes

3.10 Firm orange brown very silty very sandy weathered CLAY with Depth

tree roots Casing Depth

3.70 Fine brown silty SAND Inflow Rate

Rose 20 mins

Sealed at


Water level at end of boring

Water added from

Water added to

Type From To

Plain

Slotted

Gravel Filter

Bentonite

Bentonite

Bentonite

Tarmac

Screened (Yes/No)

Gas Tap (Yes/No)


Diameter of Pipe mm

WAITING FOR MUCK AWAY 8am 915am (1 HR) GET RIG ALL 200MM AND 150MM DRILLING EQUIPMENT AND RIG CRANED ONTO POSITION (2 1/2HRS)Rig Type

TOLD THERE WAS ALOT OF BRICK FILL ON BOREHOLE TBH2 HAD TO BE DRILLED IN 200MM CASING (1 MOBILISATION OF 200M CASING CHARGED)Foreman G WHEELER

BOREHOLE DRILLED TO 5.00M IN 200MM DIAMETER REDUCED TO 1500MM CASING@ 5.00MDay FRIDAY

Dates 11/07/2014

U100/T Contam Dist 2 Bulk C/SPT Job NumberD4061-14


1





Water Level

Casing Depth

Casing Diam.

Hours


5.00 Brown silty SAND 1 2 3 4 5 6 To (depth)

5.70 Firm brown siltysandy CLAY 3 5.70 6.00 B Pit Dimensions

8.50 Soft to firm grey silty sandy CLAY 4 8.50 9.00 B Groundwater Records

10.30 Firm to stiffgrey fissured siltysandy CLAY 5 10.30 10.70 B Water Strikes

11.20 Stiff grey fissured CLAY (during u/100 @ 11.00m) 6 11.00 11.45 U 13 DRY 10.70 150MM Depth 14.0013.70 grey slightly clayey very silty SAND ( during u/100 @ 13.50m ) 7 SHOE 11.50 D Casing Depth 10.50

19.25 Stiff grey fissured silty sandy CLAY 8 11.50 11.95 U 16 DRY 10.50 150MM Inflow Rate MED 19.45 As above with a green sand tinge 9 SHOE 12.00 D Rose 20 mins 13.20

19.75 Very stiff grey fissured silty sandy CLAY 10 12.00 12.45 U 16 DRY 10.50 150MM Sealed at 11.0011 SHOE 12.50 D Water level at start of boring

12 12.50 12.95 U 9 DRY 10.50 150MM Water level at end of boring DRY13 SHOE 12.50 D Water added from

SHEET 1 OF 2 14 12.50 12.95 U 13 DRY 10.50 150MM Water added to15 SHOE 13.00 D

16 13.00 13.45 U 9 DRY 10.50 150MM Type From To17 SHOE 13.500 D Plain 14.00 GL

18 13.50 13.95 U 8 WET 10.50 150MM Slotted 19.00 14.0019 SHOE 14.00 D Gravel Filter 19.00 13.80

20 14.00 14.45 U 9 WET 13.70 150MM Bentonite 13.80 11.0021 SHOE 14.50 D Bentonite 21.00 19.00

22 14.50 14.95 U 9 WET 14.50 150MM Backfill 11.00 0.3023 SHOE 15.00 D Concrete 0.30 GL

24 15.00 15.45 U 13 WET 15.00 150MM Screened (Yes/No) YES25 SHOE 15.50 D Gas Tap (Yes/No) NO

21.50 END OF BOREHOLE Cover (Flush/Raised) FLUSH

Diameter of Pipe mm 50MM

Rig Type PILCON 150

Foreman G WHEELER

Day MONDAY

Dates 13/07/2014

U100/T 10 Contam Dist 10 Bulk 3 C/SPT Job NumberD4061-14


1





Water Level

Casing Depth

Casing Diam.

Hours


1 2 3 4 5 6 To (depth)

27 SHOE 6.00 D Pit Dimensions

28 16.50 16.95 U 11 WET 16.50 150MM Groundwater Records29 SHOE 17.00 D Water Strikes

30 17.00 17.45 U 11 WET 16.50 150MM Depth31 SHOE 17.50 D Casing Depth

32 17.50 17.95 U 9 WET 16.50 150MM Inflow Rate33 SHOE 18.00 D Rose 20 mins

34 18.00 18.45 U 14 WET 16.50 150MM Sealed at35 SHOE 18.50 D Water level at start of boring

36 18.50 18.95 U 11 WET 16.50 150MM Water level at end of boring DRY37 SHOE 18.50 D Water added from

SHEET 2 OF 2 38 18.50 18.95 U 17 WET 16.50 150MM Water added to39 SHOE 19.00 D

40 19.00 19.45 U 13 WET 16.50 150MM Type From To41 SHOE 19.50 D Plain

42 19.50 19.95 U 17 WET 16.50 150MM Slotted43 SHOE 20.00 D Gravel Filter

44 20.00 20.45 U 51 WET 16.50 150MM Bentonite45 SHOE 20.50 D Bentonite

46 20.50 20.95 U 53 WET 16.50 150MM Backfill47 SHOE 21.00 D Concrete

21.00 21.45 U LOST DOWN HOLE 53 WET 16.50 150MM Screened (Yes/No)Gas Tap (Yes/No)

21.50 END OF BOREHOLE Cover (Flush/Raised)

Diameter of Pipe mm

Rig Type PILCON 150

Foreman G WHEELER

Day MONDAY

Dates 14/07/2014



1





Water Level

Casing Depth

Casing Diam.

Hours


1 2 3 4 5 6 To (depth)

Pit Dimensions

Groundwater Records

Water Strikes

Depth

Casing Depth

Inflow Rate

Rose 20 mins

Sealed at


Water level at end of boring

Water added from

Water added to

Type From To

Plain

Slotted

Gravel Filter

Bentonite

Bentonite

Bentonite

Tarmac

Screened (Yes/No)

Gas Tap (Yes/No)

Cover (Flush/Raised)

Diameter of Pipe mm

Rig Type PILCON 150

WAITING FOR CRANE AND GETTING ALL EQUIPMENT CRANED OFF SITE 8AM 11.15AM (3 1/4 HRS )Foreman G WHEELER

Day TUESDAY

Dates 15/07/2014

U100/T Contam Dist Bulk C/SPT Job NumberD4061-14


1

September 2014 Report No D4061-14 Issue 1 Rev.1 Enclosure B

ENCLOSURE B INSTRUMENTATION AND MONITORING

Installation Details B1Groundwater Monitoring B2

Hol

e N

o

Inst

rum

ent I

D

Inst

alla

tion

Type

Dat

e of

Inst

alla

tion

Ref

eren

ce d

epth

(m

BG

L)

Pie

zom

eter

D

iam

eter

(mm

)

Top

of re

spon

se

zone

(mB

GL)

Bas

e of

resp

onse

zo

ne (m

BG

L)

Tubi

ng C

ompl

etio

n D

etai

ls

Hea

dwor

ks Remarks

TBH1 1 SP 10 Jul 2014 0.00 13.80 17.00

TBH2 1 SP 14 Jul 2014 0.00 13.80 19.00

Notes: Type: SP - Standpipe, SPIE - Standpipe Piezometer, HPIE - Hydraulic Piezometer, PPIE - Pneumatic Piezometer, EPIE - Electronic Piezometer Prepared: 21/08/2014 14:45

Furnival House

D4061-14 City Basements Limited

Project


Table

B1

Groundwater Installation Details

Sheet 1 of 1

Date Time(hhmmss) Comments

TBH1 1 SP 17 0.00 4 Aug 2014 9.50

TBH2 1 SP 19 0.00 4 Aug 2014 9.00

B2

Reading

Hole IDIn

stru

men

t Ty

pe

Ref

eren

ce

Dep

th(m

BG

L)

Head(m above Tip)

* calculated

Water Level (mBGL)

* calculated

Inst

rum

ent I

D

Bas

e of

In

stru

men

t(m

BG

L)

Notes: Type: SP - Standpipe, SPIE - Standpipe Piezometer, HPIE - Hydraulic Piezometer, PPIE - Pneumatic Piezometer, EPIE - Vibrating Wire Piezometer, PWEL - Pumping Well


D4061-14 City Basements Limited

Project


Sheet

Groundwater Monitoring

Sheet 1 of 1

September 2014 Report No D4061-14 Issue 1 Rev.1 Enclosure C

ENCLOSURE C IN SITU TESTING

Variable Head Permeability Test C1 & C2

TYPE OF TEST BOREHOLE No. TBH1

TEST NUMBER 1

DETAILS OF INSTALLATION: DATE OF TEST 04 Aug 2014Top of response zone 14.00 m BGLBase of response zone 17.00 m BGLGroundwater level for analysis 9.50 m BGLHeight of tubing above ground level (datum) 0.00 mDiameter of standpipe tubing 50 mm Diameter of borehole (D) 150 mm

Length of response zone (L) 3000 mmIntake Factor (F) 5.81 m

REMARKS

0 13.22 3.72 1.00 Depth to groundwater prior to test 9.50 m BGL0.5 13.10 3.60 0.971 12.95 3.45 0.93

1.5 12.83 3.33 0.902 12.72 3.22 0.87

2.5 12.65 3.15 0.853 12.48 2.98 0.80

3.5 12.38 2.88 0.774 12.28 2.78 0.755 12.11 2.61 0.706 11.90 2.40 0.657 11.76 2.26 0.618 11.64 2.14 0.589 11.52 2.02 0.5415 10.95 1.45 0.3920 10.63 1.13 0.3025 10.38 0.88 0.2430 10.20 0.70 0.1935 10.05 0.55 0.15 Differential head at start of test, H0 3.72 m40 9.96 0.46 0.12 Differential head at end of test, Hf 0.05 m45 9.88 0.38 0.10 Time Elapsed at end of test 190 mins50 9.82 0.32 0.0955 9.78 0.28 0.0860 9.74 0.24 0.0680 9.65 0.15 0.04130 9.57 0.07 0.02160 9.56 0.06 0.02 Coordinates of best fit line to data:190 9.55 0.05 0.01 t1 = 0.0 mins H1/H0 = 0.500

t2 = 92.6 mins H2/H0= 0.027

Standpipe

Rising Head

Piezometer tip in uniform soil

CONDITIONS OF TEST ZONERef BS 5930:1999+A2 (2010) Figure 7

General Approach

Permeability (k) 1.8E-07 m/sec

Elapsedtime, t

(minutes)

Depth to water from datum (m)

Head, Ht(m)

Head RatioHt/H0

CALCULATED VALUES

13 litres of water removed with an MP1 pump

Depth to water measured from top of standpipePermeability calculated using BS 5930:1999 (Section 25.4.6)

Variable Head Permeability Test

Head Ratio against Time

0.01

0.1

1

0 20 40 60 80 100 120 140 160 180 200

Elapsed Time, t (mins)

Hea

d R

atio

, Ht/H

0 (lo

g sc

ale)

Notes: Project


Furnival House


Test

TYPE OF TEST BOREHOLE No. TBH2

TEST NUMBER 1

DETAILS OF INSTALLATION: DATE OF TEST 04 Aug 2014Top of response zone 14.00 m BGLBase of response zone 19.00 m BGLGroundwater level for analysis 9.00 m BGLHeight of tubing above ground level (datum) 0.00 mDiameter of standpipe tubing 50 mm Diameter of borehole (D) 150 mm

Length of response zone (L) 5000 mmIntake Factor (F) 8.53 m

REMARKS

0 13.99 4.99 1.00 Depth to groundwater prior to test 9.00 m BGL0.5 13.87 4.87 0.981 13.74 4.74 0.95

1.5 13.64 4.64 0.932 13.40 4.40 0.883 13.21 4.21 0.844 13.02 4.02 0.815 12.94 3.94 0.796 12.67 3.67 0.7410 12.00 3.00 0.6015 11.43 2.43 0.4925 10.97 1.97 0.3930 10.70 1.70 0.3435 10.41 1.41 0.2840 10.24 1.24 0.2545 10.07 1.07 0.2150 9.90 0.90 0.1855 9.85 0.85 0.1760 9.78 0.78 0.16 Differential head at start of test, H0 4.99 m90 9.55 0.55 0.11 Differential head at end of test, Hf 0.35 m120 9.35 0.35 0.07 Time Elapsed at end of test 120 mins

Coordinates of best fit line to data:t1 = 0.0 mins H1/H0 = 0.800t2 = 77.9 mins H2/H0= 0.088

Standpipe

Rising Head

Piezometer tip in uniform soil

CONDITIONS OF TEST ZONERef BS 5930:1999+A2 (2010) Figure 7

General Approach

Permeability (k) 1.1E-07 m/sec

Elapsedtime, t

(minutes)

Depth to water from datum (m)

Head, Ht(m)

Head RatioHt/H0

CALCULATED VALUES

13 litres removed with MP1 pump

Depth to water measured from top of standpipePermeability calculated using BS 5930:1999 (Section 25.4.6)

Variable Head Permeability Test

Head Ratio against Time

0.01

0.1

1

0 20 40 60 80 100 120 140

Elapsed Time, t (mins)

Hea

d R

atio

, Ht/H

0 (lo

g sc

ale)

Notes: Project


Furnival House


Test

September 2014 Report No D4061-14 Issue 1 Rev.1 Enclosure D

ENCLOSURE D GEOTECHNICAL LABORATORY TEST RESULTS

Determination of Moisture Content and Atterberg Limits Report No. 50183344/14/01 to 26

Determination of Particle Size Distribution Report No. 50183344/14/29 to 35

Determination of Undrained Shear Strength in Triaxial Compression

Report No. 50183344/14/27 to 28

Client: Environmental Services Group Report No: 50183344/14/01Client Address: Askern Road, Carcroft Batch Number: DAM0048669

DoncasterSouth Yorkshire Client Reference: B4

Postcode: DN6 8DG Sampled by: Client Date Sampled: Not Advised

Date Received: 04.08.14Site: D4061-14 Furnival House Tested From: 07.08.14-12.08.14

Sample Type: BulkTest Results:Description: Brown CLAY

TBH1 11.50 59 20

Sample Preparation:

Certified that the laboratory testing was carried out in accordance with BS 1377-2: 1990: Method 3.2, 4.3 and 5

Page: 1 of 1 [] M. Carr - Section ManagerDate: 14.08.14 Signed [ ] D. Berrill - Laboratory Manager

Laboratory Reference

As Received Moisture

Content (%)45219516 26 39 100

Determination of Moisture Content and Atterberg Limits

abc

Plastic Limit Plasticity Index% Passing

425mLiquid LimitLocation Depth (m)

0001

For and on behalf of Environmental Scientifics Group

Environmental Scientifics Group. Registered in England No. 2880501. Registered Office: ESG House, Bretby Business Park, Ashby Road, Burton on Trent DE15 0YZ

Estimated % passing 425m BS Test SieveAs Received, Coarse particles removed by hand prior to test

Opinions and interpretations expressed herein are outside the scope of UKAS accreditation

This Test Report may not be reproduced other than in full, except with the prior written approval of the issuing laboratory

CL CI CH CV CE

MI MH MV ME

Low Plasticity

Intermediate Plasticity

High Plasticity

Very High Plasticity

Extremely High Plasticity

ML

Low Shrinkage Potential

Medium Shrinkage Potential

High Shrinkage Potential

0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line

Environmental Scientifics Group 2 Newton CloseDrayton Fields Industrial EstateDaventryNorthants NN11 8RRTelephone: +44 (0) 1327 703828Facsimile: +44 (0) 1327 300154

TEST

R

EPO

RT


DoncasterSouth Yorkshire Client Reference: B8



Sample Type: BulkTest Results:Description: Brown CLAY

TBH1 12.50 62 22

Sample Preparation:





Content (%)45219517 29 40 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT


DoncasterSouth Yorkshire Client Reference: D10



Sample Type: DisturbedTest Results:Description: Grey brown slightly sandy CLAY

TBH1 13.00 69 23

Sample Preparation:





Content (%)45219518 25 46 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT





Sample Type: DisturbedTest Results:Description: Brown CLAY

TBH1 13.50 63 21

Sample Preparation:









abc



0001



Content (%)45219519 26 42 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH1 14.00 55 21

Sample Preparation:









abc



0001



Content (%)45219520 26 34 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT





Sample Type: DisturbedTest Results:Description: Brown clayey SAND

TBH1 14.50 39 Non - Plastic

Sample Preparation:









abc



0001



Content (%)45219521 26 N/A 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT

Client: Environmental Services GroupClient Address: Askern Road, Carcroft

DoncasterSouth Yorkshire Client Reference:D18



Test Results:Description: Brown CLAY

TBH1 15.00 42 18

Sample Preparation:







Content (%)Liquid Limit

45219522 24

Report No:

Plastic Limit

Plasticity Index

50183344/14/07Batch Number: DAM0048669

Sample Type:

% Passing 425m

23


Disturbed

Location Depth (m)

100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line







TBH1 15.50 46 19

Sample Preparation:





Content (%)45219523 25 27 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT





Sample Type: DisturbedTest Results:Description: Brown silty CLAY

TBH1 16.00 65 19

Sample Preparation:









abc



0001



Content (%)45219524 24 46 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH1 17.00 50 18

Sample Preparation:









abc



0001



Content (%)45219525 23 32 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH1 17.50 46 18

Sample Preparation:









abc



0001



Content (%)45219526 1.6 28 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH1 18.00 45 18

Sample Preparation:









abc



0001



Content (%)45219527 3.3 27 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT





Sample Type: DisturbedTest Results:Description: Grey brown CLAY

TBH2 11.50 70 24

Sample Preparation:









abc



0001



Content (%)45219528 11 46 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH2 12.00 68 23

Sample Preparation:









abc



0001



Content (%)45219529 21 45 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH2 12.50 66 22

Sample Preparation:





Content (%)45219530 25 44 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT

Client: Environmental Services GroupClient Address: Askern Road, Carcroft

DoncasterSouth Yorkshire Client Reference:D13



Test Results:Description: Grey brown CLAY

TBH2 13.00 71 24

Sample Preparation:







Content (%)Liquid Limit

45219531 47

Report No:

Plastic Limit

Plasticity Index

50183344/14/16Batch Number: DAM0048669

Sample Type:

% Passing 425m

28


Disturbed

Location Depth (m)

100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line







TBH2 13.50 71 23

Sample Preparation:









abc



0001



Content (%)45219532 26 48 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH2 14.00 41 20

Sample Preparation:





Content (%)45219533 27 21 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT





Sample Type: DisturbedTest Results:Description: Grey brown silty CLAY

TBH2 14.50 38 Non - Plastic

Sample Preparation:





Content (%)45219534 26 N/A 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH2 15.00 46 17

Sample Preparation:





Content (%)45219535 29 29 100


abc



0001






CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT






TBH2 15.50 83 18

Sample Preparation:









abc



0001



Content (%)45219536 26 65 100

CL CI CH CV CE

MI MH MV ME

Low Plasticity


High Plasticity



ML




0

10

20

30

40

50

60

70

80

0 10 20 30 40 50 60 70 80 90 100 110 120 130Liquid Limit (%)

Plas

ticity

In

dex

A Line


TEST

R

EPO

RT


DoncasterSouth York

furnival house site investigation

Documents