ABSTRACT
Importing and storing selected and approved
topsoil; 20 tonne load = 11.88m3 average
20 tonne loads 33.60 – – – 33.60 m3 33.60
Surface treatments
Compacting
bottoms of excavations – 0.01 0.10 0.04 – m2 0.14 Surface preparation
Trimming surfaces of cultivated ground to final
levels; removing roots, stones and debris
exceeding 50mm in any direction to tip off
site; slopes less than 15°
clean ground with minimal stone content – 0.25 4.81 – – 100m2 4.81 slightly stony; 0.5 kg stones per m2 – 0.33 6.41 – 0.01 100m2 6.42 very stony; 1.0-3.0 kg stones per m2 – 0.50 9.63 – 0.02 100m2 9.65 clearing mixed, slightly contaminated
rubble; inclusive of roots and vegetation – 0.50 9.63 – 0.06 100m2 9.69 clearing brick-bats, stones and clean
rubble – 0.60 11.55 – 0.04 100m2 11.59
D41 CRIB WALLS/GABIONS/REINFORCED
EARTH
CRIB WALLS
Crib walls; Phi Group
Permacrib (timber) or Andacrib (concrete) crib
walling system; machine filled infill with
crushed rock; inclusive of concrete footing and
rear wall drain; excluding excavation and
backfill material
retaining walls up to 2.0m – – – – – m2 160.00 retaining walls up to 4.0m – – – – – m2 180.00 retaining walls up to 6.0m – – – – – m2 200.00
GABIONS
Retaining walls; Maccaferri Ltd
Wire mesh gabions; galvanized mesh
80 ×100mm; filling with broken stones
125-200mm size; wire down securely to manufacturer’s instructions; filling front face by hand
2× 1× 0.50m 19.09 0.67 38.50 3.72 66.97 nr 109.19
2× 1× 1.0m 26.82 1.33 77.00 7.45 122.58 nr 207.03
PVC coated gabions
2× 1× 0.5m 24.84 0.67 38.50 3.72 72.72 nr 114.94
2× 1× 1.0m 34.16 1.33 77.00 7.45 129.92 nr 214.37
PC
Excluding site overheads and profit £ hours £ £ £ rate £
GABIONS – cont
Retaining walls – cont Reno mattress gabions
6× 2× 0.17m 80.78 1.00 57.75 5.59 178.46 nr 241.80
6× 2× 0.23m 87.62 1.50 86.63 7.45 219.77 nr 313.85
6× 2× 0.30m 102.82 2.00 115.50 8.38 275.19 nr 399.07
REINFORCED EARTH
Embankments; Tensar International
Embankments; reinforced with Tensar Geogrid
RE520; geogrid laid horizontally within fill to
100% of vertical height of slope at 1.00m
centres; filling with excavated material
slopes less than 45°; Tensartech Natural
Green System 2.36 0.61 35.38 1.60 2.36 m3 39.34
slopes exceeding 45°; Tensartech
Greenslope System 5.08 0.06 3.57 2.31 5.08 m3 10.96
extra over to slopes exceeding 45° for
temporary shuttering; shuttering measured
per m2 of vertical elevation – – – – 12.00 m2 12.00 Embankments; reinforced with Tensar Geogrid
RE540; geogrid laid horizontally within fill to
100% of vertical height of slope at 1.00m
centres; filling with excavated material
slopes less than 45°; Tensartech Natural
Green System 2.92 0.61 35.38 1.60 2.92 m3 39.90
slopes exceeding 45°; Tensartech
Greenslope System 6.28 0.06 3.57 2.31 6.28 m3 12.16
extra over to slopes exceeding 45° for
temporary shuttering; shuttering measured
per m2 of vertical elevation – – – – 12.00 m2 12.00 Extra for Tensar Mat 400; erosion control
mats; to faces of slopes of 45° or less; filling
with 20mm fine topsoil; seeding 3.95 0.01 0.38 0.21 5.26 m2 5.85
Embankments; reinforced with Tensar Geogrid
RE540; geogrid laid horizontally within fill to
50% of horizontal length of slopes at specified
centres; filling with imported fill PC £11.20/m3
300mm centres; slopes up to 45°;
Tensartech Natural Green System 4.85 0.08 4.49 1.80 18.29 m3 24.58
600mm centres; slopes up to 45°;
Tensartech Natural Green System 2.42 0.06 3.57 2.31 15.86 m3 21.74
extra over to slopes exceeding 45° for
temporary shuttering; shuttering measured
per m2 of vertical elevation – – – – 12.00 m2 12.00 Extra for Tensar Mat 400; erosion control
mats; to faces of slopes of 45° or less; filling
with 20mm fine topsoil; seeding 3.95 0.01 0.38 0.21 5.26 m2 5.85
PC
Excluding site overheads and profit £ hours £ £ £ rate £
Embankments; reinforced with Tensar Geogrid
RE540; geogrid laid horizontally within fill;
filling with excavated material; wrapping
around at faces
300mm centres; slopes exceeding 45°;
Tensartech Natural Green System 9.72 0.06 3.57 1.60 9.72 m3 14.89
600mm centres; slopes exceeding 45°;
Tensartech Greenslope System 4.85 0.06 3.57 1.60 4.85 m3 10.02
extra over to slopes exceeding 45° for
temporary shuttering; shuttering measured
per m2 of vertical elevation – – – – 12.00 m2 12.00 Extra over embankments for bagwork face
supports for slopes exceeding 45° – 0.17 9.62 – 14.00 m2 23.62 Extra over embankments for seeding of bags – 0.03 1.92 – 0.32 m2 2.24 Extra over embankments for Bodkin joints – – – – 1.10 m 1.10
Anchoring systems; surface stabilization;
Platipus Anchors Ltd; centres and depths
shown should be verified with a design
engineer; they may vary either way
dependent on circumstances
Concrete revetments; hard anodized stealth
anchors with stainless steel accessories
installed to a depth of 1m
SO4 anchors to a depth of 1.00-1.50m at 1.00m centres 26.63 0.17 6.42 1.77 26.63 m2 34.82
Loadlocking and crimping tool; for stressing
and crimping the anchors
hire rate per week 72.93 – – – 72.93 nr 72.93 Surface erosion; geotextile anchoring on
slopes; aluminium alloy Stealth anchors
SO4/SO6 to a depth of 1.0-2.0m at 2.00m centres 9.10 1.00 38.50 1.77 9.10 m2 49.37
Brick block or in situ concrete distressed
retaining walls; anchors installed in two rows
at varying tensions between 18-50 kN along the length of the retaining wall; core drilling of
wall not included
SO8/BO6/BO8 bronze Stealth and Bat
anchors installed in combination with
stainless steel accessories to a depth of
6m; average cost base on 1.50m centres;
long-term solution 382.02 0.25 9.63 1.77 382.02 m2 393.42
SO8/BO6/BO8 cast SG iron Stealth and
Bat anchors installed in combination with
galvanized steel accessories to a depth of
6m; average cost base on 1.50m centres;
short term solution 163.22 0.25 9.63 1.77 163.22 m2 174.62
PC
Excluding site overheads and profit £ hours £ £ £ rate £
REINFORCED EARTH – cont
Anchoring systems – cont Timber retaining wall support; anchors
installed 19 kN along the length of the
retaining wall
SO6/SO8 bronze Stealth anchors including
load plate and wege grip; installed in
combination with stainless steel
accessories to a depth of 3.0m; 1.00m
centres; average cost 184.80 0.25 14.44 1.41 184.80 m2 200.65
Gabions; anchors for support and stability to
moving, overturning or rotating gabion
retaining walls
SO8/BO6 anchors including base plate at
1.00m centres to a depth of 4.00m 289.41 0.17 9.63 1.77 289.41 m2 300.81
Soil nailing of geofabrics; anchors fixed
through surface of fabric or erosion control
surface treatment (not included)
SO8/BO6 anchors including base plate at
1.50m centres to a depth of 3.00m 115.76 0.08 4.81 1.18 115.76 m2 121.75
Green faced reinforced soil; Phi Group
Textomur reinforced soil system
embankments; to reinforced soil slopes
55-70° to the horizontal; including facing and geogrid; excluding backfill material
retaining walls up to 3.0m – – – – – m2 120.00 retaining walls up to 6.0m – – – – – m2 125.00
Split face concrete blocks reinforced soil;
Phi Group
Modular blocks reinforced soil system
embankments; to reinforced soil slopes near
vertical; including geogrid; excluding backfill
material
retaining walls up to 3.0m – – – – – m2 180.00 retaining walls up to 6.0m – – – – – m2 210.00