week 6 - site clearance
TRANSCRIPT
AQS 1100 PRINCIPLES OF MEASUREMENT FOR BUILDING WORKS
WEEK SIX – SITE CLEARANCE
OUTLINE
INTRODUCTION TO SMM2 CLAUSE- GENERAL- SECTION A (GENERAL RULES) INTRODUCTION TO SITE CLEARANCE
MEASUREMENT MEASUREMENT RULES GUIDE TO TAKING OFF
INTRODUCTION TO SMM2
SECTION
HEADING Guide for measuring:
A GENERAL RULES Guide on general rule for measurement works
B PRELIMINARIES preliminaries items related to construction works, contracts, descriptions etc
C DEMOLITION demolition works, description writing and considerations
D EXCAVATION & EARTHWORK
Site clearance, excavation works, earthworks (cutting & filling)
E PILING & DIAPHRAGM WALLING
Piling works, testing for piling, diaphragm wall
F CONCRETE WORK
Concrete works (precast/RC): foundations, pile cap, beams, columns, wall etc. including reinforcement, formwork
G BRICKWORK & BLOCKWORK
Brickworks, blockworks
INTRODUCTION TO SMM2
SECTION
HEADING Guide for measuring:
H UNDERPINNING Works associated with underpinning (i.e. excavation)
J MASONRY Stoneworks, its classification and construction joints
K WATERPROOFING & ASPHALT WORK
Waterproofing works for floors, pavement, roofing, tanks, basements etc
L ROOFING Roof coverings, accessories and rain water goods (RWG)
M WOODWORK Timberworks associated with : carcassing (frame), boardings, finishes, door & window frame, ironmongeries etc
N STRUCTURAL STEELWORK
Steel frame works (i.e. factory buildings, malls, offices)
P METALWORKS Metal works which includes: plates, door & window frame, balustrades, staircase etc
INTRODUCTION TO SMM2
SECTION
HEADING Guide for measuring:
Q PLUMBING & MECHANICAL ENGINEERING INSTALLATIONS
Pipeworks (refer Q2 pg 95), ductworks, connections, supports, insulation. Normally involve in water plumbing, air conditioning ductworks, chemical gas pipes in hospital, fuel pipes
R ELECTRICAL INSTALLATIONS
Electrical works: wiring, fittings, trunking, cabling etc
S FLOOR, WALL & CEILING FINISHES
Architectural works: finishes (i.e. wall tiles, slabs, ceiling boards, carpetting
T GLAZING Works associated with glass (i.e. window & door glass)
U PAINTING & DECORATING
Works associated with painting works, decorating works (wall papers)
V DRAINAGE Works associated with constructing drain (including excavations) laying pipe, connections and testing
W FENCING, TURFING
Landscaping works, fencing and plantings
INTRODUCTION TO SMM2
SECTION A – GENERAL RULESA1 – introduction
A2 – Bills of Quantities
A3 – Measurement
A4 – Description
A5 – Drawn Information
A6 – Standard Products
A7 – Quantities
A8 – Provisional Sums & Prime Cost Sum
A9 – Works in Special Conditions
INTRODUCTION
Objective of Site Clearance Preparing the site for construction activities
INTRODUCTION
WORKS INVOLVED IN SITE PREPARATION / CLEARANCE Cutting of trees Removing the tree stumps Removing the hedges Removing the shrubs and bushes Removing & Relocating the turf or grass Removing & Relocating the topsoil
INTRODUCTION : SITE CLEARANCE
Hedges
Shrubs
Groundcovers & topsoil
Trees
INTRODUCTION
Cutting of Trees & Removing of stump
INTRODUCTION
Removing Hedges , Shrubs & Bushes
INTRODUCTION
Does the Site Ready for Construction?
INTRODUCTION
Removing of Topsoil
INTRODUCTION
Removing of Topsoil
INTRODUCTION
Plant & Machinery Used
Excavator
Bull Dozer
INTRODUCTION
Plant & Machinery Used
Backhoe Loader
MEASUREMENT : SMM 2 CLAUSESECTION D : EXCAVATION AND
EARTHWORKD2 – Removing hedgesD3 – Clearing undergrowthD4 – Removing treesD5 – Tree stumpsD6 – Lifting turfD7 – TopsoilD8 – Alternative method of measurement
MEASUREMENT : ALTERNATIVE A
MEASUREMENT RULES : D2
Section D2 Cutting & Grubbing of hedges and their
roots Include the disposal Measured in linear meter (m) State the nature / height & location
MEASUREMENT RULES : D2
Example
SITE
20000
2000
0
Measurement:
Total Length = 20000 + 20000 = 40000
= 40.00m
MEA
SU
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2
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & Earthwork 1
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Clearing site of hibiscus hedges average 1.00m high and grubbing up their roots
m
QTY:
40
SQD: Total Length = 20000 + 20000
40.00 = 40000 40.00 CHK SQD:
RED:
CHK RED:
RATE:
TOTAL COST 40.00
Side Cast
MEASUREMENT RULES : D3
Section D3 Clearing of undergrowth / bushes / shrubs Include the disposal Measure in meter square (m2)
MEASUREMENT RULES : D3
Example20000
2000
0
Measurement:
Total Area = 20000 x 20000 = 40.00m2
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & Earthwork 2
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Clearing site of undergrowth, bushes, shrub & the like & grubbing up their roots
m2
QTY:
40
SQD: Length
20.00 20000 20.00 CHK SQD: 400.00 Width
20000 RED:
CHK RED:
RATE:
TOTAL COST 400.00 M
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3
MEASUREMENT RULES : D4
Section D4 Cutting down trees and grubbing their roots Include disposal Measured in numbers (No) Classified in stages of 300mm girth
(measured at 1.00m from the ground Filling of void if necessaryNotes: Girth – the measurement around the middle of
something
(i.e. circumference / perimeter)
MEASUREMENT RULES : D4
Classified in stages of 300mm girth
1.00
MEASUREMENT RULES : D4
Example
G = 280
G = 100
G = 500
Measurement:
Total No n.e. 300mm = 2 no
Total No 300mm – 600mm = 1 no
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & Earthwork 3
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Cutting down trees & grubbing up their roots & filling voids left by removal of roots with material arising from excavation
Not Exceeding 300mm girth at 1.00m above ground level
No
QTY:
2
SQD:
CHK SQD: 2
2 RED:
CHK RED:
RATE:
TOTAL COST 2 M
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4
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & earthwork 4
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Cutting down trees & grubbing up their roots & filling voids left by removal of roots with material arising from excavation
Exceeding 300mm & not exceeding 600mm girth ditto
No
QTY:
1
SQD:
CHK SQD: 1
1 RED:
CHK RED:
RATE:
TOTAL COST 1 M
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4
MEA
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: D
5
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & earthwork 5
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Removing existing tree stumps and grubbing up their roots and filling voids left by removal of roots with material arising from excavation not exceeding 300mm girth at 1.00m above ground level
No
QTY:
1
SQD:
CHK SQD: 1
1 RED:
CHK RED:
RATE:
TOTAL COST 1
MEASUREMENT : ALTERNATIVE B
MEASUREMENT RULES : D8
Section D 8 Cutting of trees, removal of stump and
all clearance of undergrowth, shrubs, hedges & bushes are given as item.
Describing the total area affected in the description area.
MEASUREMENT RULES : D820
000
20000
Measurement:
Total Area = 20000 x 20000 = 40.00m2
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & earthwork 1
HEADING:
SITE PREPARATION
DESCRIPTION: UNIT:
Cutting down trees & clearing site of undergrowth, bushes, scrub and hedges & grubbing up their roots & filling voids left by removal of roots with selected material arising from excavation (in 40m2)
Item
QTY:
SQD:
Item CHK SQD:
RED:
CHK RED:
RATE:
TOTAL COST
M
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8
HOW TO START?
HOW TO START?
HOW TO START?
Proposed construction project site
GUIDELINES TO TAKING-OFF
1. Check the scale of the drawing2. Check the sufficiency of the data
provided (i.e. sizes, annotation, specification)
3. Prepare taking off list4. Prepare table to indicate various stages
or sizes of items5. Prepare Query List (if required)6. Indicate page numbers in every slip sort
sheet
Taking Off List Indicate a list of items to be measured
from the drawing Follow the sequence of work State the clauses in the SMM 2 and unit
of measurement
GUIDELINES TO TAKING-OFF
GU
IDELI
NES
: T
.O.
LIS
T
JOB: ELEMENT: SLIP NO:
AQS 1100
Excavation & earthwork 1
HEADING:
TAKING OFF LIST
DESCRIPTION: UNIT:
QTY:
SQD: Item Unit SMM
1. Clearing Undergrowth m2 D3 CHK SQD: 2. Cutting down trees
n.e. 300mm girth No D4 RED:
3. Ditto exceeding 300mm
& n.e. 600mm girth No D4 CHK RED:
4. Cutting down hedges No D5 RATE:
TOTAL COST
THANK YOU