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19-04-2017
1
Grundlaget for fremtidens geoteknikCEN/TC 288 Execution of special geotechnical works
ISO/TC 182-WG3: EN ISO 22477-5 Testing of grouted anchors - Status
NOM, April 2017
Dias 1
TC 288 Execution of special geotechnical worksStatus of standards
Dias 2
NOM, April 2017
Reference Ver. Title DK titel Status Next Review Convenor DS publikation
EN 1536 2010 Bored piles Borede pæle +A1:2015 2020 3. udg., 2015-06-22
EN 1537 2013 Ground anchors Jordankre 2018 2. udg., 2013-07-29
EN 1538 2010 Diaphragm walls Slidsevægge +A1:2015 2020 3. udg., 2015-06-22
EN 12063 1999 Sheet-pile walls Spunsvægge WG19 (2016) no progress Hervé Duplaine 1. udg., 1999-03-31
EN 12699 2015 Displacement piles Fortrængningspæle 2020 2. udg., 2015-05-20
EN 12715 2000 Grouting Grouting WG18 (2014) Robert David Essler 1. udg., 2000-08-30
EN 12716 2001 Jet grouting Jet grouting WG17 (2013) Gebhard Dausch 1. udg., 2001-06-21
EN 14199 2015 Micro-Piles Minipæle 2020 2. udg., 2015-06-10
EN 14475 2006 Reinforced fill Armeret fylde (jord) confirmed 2016 2021 1. udg., 2006-12-19
EN 14490 2010 Soil nailing Jordsøm confirmed 2015 2020 1. udg., 2010-06-16
EN 14679 2005 Deep mixing Deep mixing confirmed 2014 2019 1. udg., 2005-11-30
EN 14731 2005 Deep vibration (*) Dybdevibration (*) confirmed 2014 2019 1. udg., 2006-02-24
EN 15237 2007 Vertical drainage Vertikalt dræn confirmed 2012 2017 1. udg., 2007-06-14
Dewatering (Grundvandssænkning) WG21 (2016) call for 2016-08-02
Ground freezing (Jordfrysning) WG20 (2016) call for 2016-08-02
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TC 288 Execution of special geotechnical worksStatus of standards
Dias 3
NOM, April 2017
NOTE
DOR Date of Ratification
DAV Date of Availability
DOA Date of Announcement
DOP Date of Publication
DOW Date of Withdrawal
Link to CEN https://standards.cen.eu/dyn/www/f?p=204:105:0:::::
EN 14731 (*) Ground treatment by deep vibration
Jordbearbejdning ved dybdevibration …. (Dybdekomprimering)
Next plenary meeting will be in Austria 29-30 June 2017
Caroline Reis, AFNOR is the secretary of CEN/TC 288
TC 288 Execution of special geotechnical worksEN 12063 Sheet-pile walls, CEN/TC 288/WG19 members (June 1015)
Dias 4
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Name Country E-mail Role Appointed by
Hervé Duplaine France herve.duplaine@balineau.fr Convenor AFNOR + CEN/TC 288
Hervé Duplaine France herve.duplaine@balineau.fr Committee member AFNOR
Frédéric Aury France frederic.aury@vinci-construction.fr Committee member AFNOR
Marc Gratier France marc.gratier@arcelormittal.com Committee member AFNOR
David Baxter UK david.baxter@arcelormittal.com Committee member BSI
Tommi Hakanen Finland tommi.hakanen@lemminkainen.com Committee member SFS
Pentti Salo Finland salope@luukku.com Committee member SFS
Patrick Ijnsen Netherlands p.ijnsen@hektec.nl Committee member NEN
Ole Møller Denmark nom@aarsleff.com Committee member DS
Izabela Liero Germany izabela.liero@din.de Document monitor DIN
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EN ISO 22477-5 Testing of grouted anchorsStatus after WG3 meeting in London 5-6 April 2017
Dias 5
NOM, April 2017
• Result of voting
• Definitions and terms
• Test methods
• Observation periods by S-tests on permanent anchors
in hard (Precambrian) rock
• Measuring of displacement
EN ISO 22477-5 Testing of grouted anchors
Dias 6
NOM, April 2017
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EN ISO 22477-5 Testing of grouted anchorsResult of voting
Dias 7
NOM, April 2017
325 comments, of which 153 were resolved – or close to being resolved in London 5-6 April.
The general sections 1 to 7 + 23 comments concerning the section 8 (Test Method 1)
EN ISO 22477-5 Testing of grouted anchorsResult of voting
Dias 8
NOM, April 2017
19-04-2017
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CEN standarderNye afstemningsregler pr. 1. januar 2017
Dias 9
NOM, April 2017
CEN standarderNye afstemningsregler pr. 1. januar 2017
Dias 10
NOM, April 2017
Link fra DS’ hjemmeside: https://www.ds.dk/da/nyhedsarkiv/2017/1/cen-vedtager-nye-afstemningsregler
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CEN standarderNye afstemningsregler pr. 1. januar 2017
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Member countryCLC
Weighting
In
percentNew CEN
New
Weighting
EEA
country
Diffe-
rence
Relative increase of
influence
Germany 29 7,04% 13,35% 55,0 X 6,31% 89,66%
Turkey 2) 29 7,04% 12,52% 51,6 - 5,48% 77,87%
France 29 7,04% 10,91% 44,9 X 3,87% 55,00%
United Kingdom 29 7,04% 10,64% 43,8 X 3,60% 51,16%
Italy 29 7,04% 10,02% 41,3 X 2,98% 42,35%
Spain 27 6,55% 7,66% 31,6 X 1,11% 16,89%
Poland 27 6,55% 6,27% 25,8 X -0,28% -4,32%
Romania 14 3,40% 3,28% 13,5 X -0,12% -3,47%
Netherlands 13 3,16% 2,78% 11,5 X -0,38% -11,90%
Belgium 12 2,91% 1,85% 7,6 X -1,06% -36,48%
Greece 12 2,91% 1,79% 7,4 X -1,12% -38,54%
Czech Republic 12 2,91% 1,73% 7,1 X -1,18% -40,60%
Portugal 12 2,91% 1,71% 7,0 X -1,20% -41,29%
Hungary 12 2,91% 1,63% 6,7 X -1,28% -44,04%
Sweden 10 2,43% 1,60% 6,6 X -0,83% -34,08%
Austria 10 2,43% 1,41% 5,8 X -1,02% -41,91%
Switzerland 2) 10 2,43% 1,35% 5,6 - -1,08% -44,38%
CEN standarderNye afstemningsregler pr. 1. januar 2017
Dias 12
NOM, April 2017
Member countryCLC
Weighting
In
percentNew CEN
New
Weighting
EEA
country
Diffe-
rence
Relative increase of
influence
Bulgaria 10 2,43% 1,19% 4,9 X -1,24% -50,97%
Serbia 7 1,70% 1,17% 4,8 - -0,53% -31,14%
Denmark 7 1,70% 0,93% 3,8 X -0,77% -45,26%
Finland 7 1,70% 0,90% 3,7 X -0,80% -47,03%
Slovakia 7 1,70% 0,89% 3,7 X -0,81% -47,62%
Norway 7 1,70% 0,85% 3,5 X -0,85% -49,97%
Ireland 7 1,70% 0,76% 3,1 X -0,94% -55,27%
Croatia 7 1,70% 0,70% 2,9 X -1,00% -58,80%
Lithuania 7 1,70% 0,48% 2,0 X -1,22% -71,75%
FYROM 2) 4 0,97% 0,34% 1,4 - -0,63% -64,98%
Slovenia 4 0,97% 0,34% 1,4 X -0,63% -64,98%
Latvia 4 0,97% 0,33% 1,4 X -0,64% -66,01%
Estonia 4 0,97% 0,22% 0,9 X -0,75% -77,34%
Cyprus 4 0,97% 0,19% 0,8 X -0,78% -80,43%
Luxembourg 4 0,97% 0,09% 0,4 X -0,88% -90,73%
Malta 3 0,73% 0,07% 0,3 X -0,66% -90,39%
Iceland 3 0,73% 0,05% 0,2 X -0,68% -93,13%
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CEN standarderNye afstemningsregler pr. 1. januar 2017
Dias 13
NOM, April 2017
Aktuel afstemning om EN ISO 22477-5
CEN standarderNye afstemningsregler pr. 1. januar 2017
Dias 14
NOM, April 2017
Fiktiv afstemning om EN ISO 22477-5:
Sverige: JaTyskland: Nej
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EN ISO 22477-5 Testing of grouted anchorsDefinitions and terms
Dias 15
NOM, April 2017
anchorage point
anchor head
tendon head → tendon end
(by displacement measurement)
EN ISO 22477-5 Testing of grouted anchorsTest Methods
Dias 16
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France … voted no, because
• Method 2 is obsolete and it should be withdrawn (Ed: Test Method 2 = load loss method from UK)
• The Method “step load” is to be put in 1st method, because the method classically used for geotechnical structures (Ed: step load method = Test Method 3 from France)
• The new chapter 8 shall describe MLT (Maintained Load Test) and the new chapter 9 shall describe the CLT (Cyclic Load Test) .
• For simplification, the use of “MLT” and “CLT” to qualify these 2 methods instead of “TM 1” and “TM3” is more relevant and clearer.
WG3 decision: TM1, 2 and 3 are maintained.
TM2 (Load loss) should (still) be allowed for those countries, who are in favour. TM2 is recognised.
EN 1997-1/A1:2013 refers to TM1, 2 and 3 (in tables A.20 and A.21)
19-04-2017
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EN ISO 22477-5 Testing of grouted anchorsObservation periods in hard rock
Dias 17
NOM, April 2017
Sweden … voted no, because
In Sweden the majority of the anchors are installed in Precambrian bedrock, and therefore slightly different/adjusted test methods/procedure are used. The current proposal for ISO/DIS 22477-5 does not take this into consideration. The standard must be modified to allow for national annex with modified methods adopted to the local geology.
For anchors in Precambrian bedrock the load cycles may be reduced by 50 %.
But only on permanent anchors by S-test (acc. to SE NA = TiIlämpningsdokument)
BSI (CEN + ISO secretariat): No National Annex is allowed
EN ISO 22477-5 Testing of grouted anchorsObservation periods in hard rock
Dias 18
NOM, April 2017
From EN ISO 22477-5
50% of (15 + 15 + 30 + 30 + 60) = 75 minutes … for S-tests on 2% of the anchors (min. 3 pcs.)
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EN ISO 22477-5 Testing of grouted anchorsObservation periods in hard rock
Dias 19
NOM, April 2017
From SS 27104
EN ISO 22477-5 Testing of grouted anchorsObservation periods in hard rock
Dias 20
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WG3 decision
NOTE 1: For the definition of fine and coarse soil refer to EN ISO 14688-1
NOTE 2: For permanent anchors in hard rock (Precambrian rock, identified by a compression strength of … MPa), the observation periods by S-tests can be reduced by 50 %.
Cycle Maximum load
Minimum observation period at maximum load (minutes)
Temporary anchor Permanent anchor
coarse soil and rock fine soilcoarse soil and
rockfine soil
0 Pa 1 1 1 1
1 0,40 Pp 1 1 15 15
2 0,55 Pp 1 1 15 15
3 0,70 Pp 5 5 30 60
4 0,85 Pp 5 5 30 60
5 1,00 Pp 30 60 60 180
The datum load Pa should be min. of 0,1 Pp, or 50 kN
Table 2 — Loading sequence for suitability test
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EN ISO 22477-5 Testing of grouted anchorsMeasurement of displacement
Dias 21
NOM, April 2017
Sweden
A-test
For anchors in Precambrian bedrock measurement with steel-ruler may be used.
EN ISO 22477-5 Testing of grouted anchorsMeasurement of displacement
Dias 22
NOM, April 2017
Sweden
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EN ISO 22477-5 Testing of grouted anchorsMeasurement of displacement
Dias 23
NOM, April 2017
present EN ISO 22477-5
4.5 Displacement measurement
…
(3) The precision of the measuring equipment shall be 0.5 mm or better for displacement measurements, and 0.01 mm for creep monitoring.
WG3 decision: no change
EN ISO 22477-5 Testing of grouted anchorsMeasurement of displacement
Dias 24
NOM, April 2017
Precision Time Displacement Creep rate
∆t ∆s t1 t2 t2/t1 s1 s2 α αmax αmin
min mm min min mm mm mm mm mm
0,0167 0,01 2 5 2,5 10,00 10,20 0,50 0,56 0,45
0,0167 1 2 5 2,5 10,00 10,20 0,50 5,60 -4,47
0,0167 0,01 5 15 3 10,00 10,95 1,99 2,04 1,94
0,0167 1 5 15 3 10,00 10,95 1,99 6,21 -2,19
0,0167 0,01 10 20 2 10,00 10,60 1,99 2,07 1,92
0,0167 1 10 20 2 10,00 10,60 1,99 8,67 -4,63
0,0167 0,01 10 30 3 10,00 10,50 1,05 1,09 1,00
0,0167 1 10 30 3 10,00 10,50 1,05 5,25 -3,14
0,0167 1 1 10 10 10,00 11,00 1,00 3,02 -0,99
0,0167 1 1 20 20 10,00 12,00 1,54 3,09 0,00
[ ])/()(log
)()(
12
12max
tttt
ssss
∆+∆−
∆−−∆+=α
)/log( 12
12
tt
ss −=α
[ ])/()(log
)()(
12
12min
tttt
ssss
∆−∆+
∆+−∆−=α
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