ABSTRACT
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 18.14 0.67 39.00 4.35 68.54 nr 111.89
2× 1 × 1.0m 25.48 1.33 78.00 8.71 126.28 nr 212.99
PVC coated gabions
2× 1 × 0.5m 23.60 0.67 39.00 4.35 74.00 nr 117.35
2× 1 × 1.0m 32.46 1.33 78.00 8.71 133.26 nr 219.97
Reno mattress gabions
6× 2 × 0.17m 76.74 1.00 58.50 6.53 179.56 nr 244.59
6× 2 × 0.23m 83.24 1.50 87.75 8.71 222.34 nr 318.80
6× 2 × 0.30m 97.68 2.00 117.00 9.80 279.12 nr 405.92
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 35.84 1.74 2.36 m3 39.94
slopes exceeding 45°; Tensartech
Greenslope System 5.08 0.06 3.62 2.57 5.08 m3 11.27
extra over to slopes exceeding 45° for
temporary shuttering; shuttering measured
per m2 of vertical elevation – – – – 12.00 m2 12.00
Labour Plant Material Unit
Excluding site overheads and profit £ hours £ £ £ rate £
REINFORCED EARTH – CONT
Embankments – cont 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 35.84 1.74 2.92 m3 40.50
slopes exceeding 45°; Tensartech
Greenslope System 6.28 0.06 3.62 2.57 6.28 m3 12.47
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 0.39 0.21 5.59 m2 6.19
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 £21.60/m3
300mm centres; slopes up to 45°;
Tensartech Natural Green System 4.85 0.06 4.55 1.98 30.77 m3 37.30
600mm centres; slopes up to 45°;
Tensartech Natural Green System 2.42 0.06 3.62 2.57 28.34 m3 34.53
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 0.39 0.21 5.59 m2 6.19
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 3.62 1.74 9.72 m3 15.08
600mm centres; slopes exceeding 45°;
Tensartech Greenslope System 4.85 0.06 3.62 1.74 4.85 m3 10.21
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 9.75 – 14.00 m2 23.75 Extra over embankments for seeding of bags – 0.03 1.95 – 0.20 m2 2.15 Extra over embankments for Bodkin joints – – – – 1.10 m 1.10
Labour Plant Material Unit
Excluding site overheads and profit £ hours £ £ £ rate £
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 6.50 1.57 26.63 m2 34.70
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 39.00 1.57 9.10 m2 49.67
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 9.75 1.57 382.02 m2 393.34
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 9.75 1.57 163.22 m2 174.54
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; 1.00
centres; average cost 184.80 0.25 14.63 1.26 184.80 m2 200.69
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 9.75 1.57 289.41 m2 300.73
Labour Plant Material Unit
Excluding site overheads and profit £ hours £ £ £ rate £
REINFORCED EARTH – CONT
Anchoring systems – cont 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 4.87 1.05 115.76 m2 121.68
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
