ABSTRACT
Timber log retaining walls; Timber fencing; AVS Fencing Supplies Ltd; tanalized softwood posts; all timber posts are "kiln dried redwood" with 15 year guarantee; walls below which have cut posts would not be subject to the suppliers guarantee Machine rounded softwood logs to trenches priced separately; disposal of excavated material priced separately; inclusive of 75 mm hardcore blinding to trench and backfilling trench with site mixed concrete 1:3:6; geofabric pinned to rear of logs; heights of logs above ground 500 mm (constructed from 1.80 m lengths) 31.15 1.50 30.75 - 42.92 m 73.67 1.20 m (constructed from 1.80 m lengths) 62.30 1.30 26.65 - 83.12 m 109.77 1.60 m (constructed from 2.40 m lengths) 83.20 2.50 51.25 - 110.83 m 162.08 2.00 m (constructed from 3.00 m lengths) 104.00 3.50 71.75 - 138.47 m 210.22
As above but with 150 mm machine rounded timbers 500 mm 42.70 2.50 51.25 - 54.47 m 105.72 1.20 m 142.19 1.75 35.88 - 163.01 m 198.88 1.60 m 142.33 3.00 61.50 - 170.01 m 231.51
As above but with 200 mm machine rounded timbers 1.80 m (constructed from 2.40 m lengths) 189.75 4.00 82.00 - 224.28 m 306.28
Railway sleeper walls; AVS Fencing Supplies Ltd Construct retaining wall from railway sleepers; fixed with steel galvanized pins 12 mm driven into the ground; sleepers laid flat Grade 1 softwood; 2590 x 250 x 125 mm 150 mm; 1 sleeper high 7.39 0.50 10.25 - 11.79 m 22.04 300 mm; 2 sleepers high 14.79 1.00 20.50 - 15.67 m 36.17 450 mm; 3 sleepers high 22.00 1.50 30.75 - 23.16 m 53.91 600 mm; 4 sleepers high 29.64 2.00 41.00 - 30.80 m 71.80
Grade 1 softwood as above but with 2 nr galvanized angle iron stakes set into concrete internally and screwed to the inside face of the sleepers 750 mm; 5 sleepers high 36.67 2.50 51.25 - 64.18 m2 115.43 900 mm; 6 sleepers high 43.89 2.75 56.38 - 74.12 m2 130.49
Grade 1 hardwood; 2590 x 250 x 150 mm 150 mm; 1 sleeper high 7.72 0.50 10.25 - 8.16 m 18.41 300 mm; 2 sleepers high 15.43 1.00 20.50 - 16.31 m 36.81 450 mm; 3 sleepers high 22.96 1.50 30.75 - 24.12 m 54.87 600 mm; 4 sleepers high 30.93 2.00 41.00 - 32.09 m 73.09
Grade 1 hardwood as above but with 2 nr galvanized angle iron stakes set into concrete internally and screwed to the inside face of the sleepers 750 mm; 5 sleepers high 38.27 2.50 51.25 - 65.79 m2 117.04 900 mm; 6 sleepers high 45.81 2.75 56.38 - 76.04 m2 132.41
PC Labour Labour Plant Material Excluding site overheads and profit £ hours £ £ £ rate £
D11 SOIL STABILIZATION – cont'd
Construct retaining wall from railway sleepers; fixed with steel galvanized pins 12 mm driven into the ground; sleepers laid flat – cont'd New pine softwood; 2400 x 250 x 125 mm 120 mm; 1 sleeper high 9.57 0.50 10.25 - 10.01 m 20.26 240 mm; 2 sleepers high 19.14 1.00 20.50 - 20.02 m 40.52 360 mm; 3 sleepers high 28.72 1.50 30.75 - 29.87 m 60.62 480 mm; 4 sleepers high 38.29 2.00 41.00 - 39.44 m 80.44
New pine softwood as above but with 2 nr galvanized angle iron stakes set into concrete internally and screwed to the inside face of the sleepers 600 mm; 5 sleepers high 47.86 2.50 51.25 - 75.37 m2 126.62 720 mm; 6 sleepers high 57.43 2.75 56.38 - 87.66 m2 144.04
New oak hardwood; 2600 x 220 x 130 mm 130 mm; 1 sleeper high 11.42 0.50 10.25 - 11.86 m 22.11 260 mm; 2 sleepers high 22.85 1.00 20.50 - 23.73 m 44.23 390 mm; 3 sleepers high 34.27 1.50 30.75 - 35.43 m 66.18 520 mm; 4 sleepers high 45.70 2.00 41.00 - 46.85 m 87.85
New oak hardwood as above but with 2 nr galvanized angle iron stakes set into concrete internally and screwed to the inside face of the sleepers 640 mm; 5 sleepers high 57.12 2.50 51.25 - 84.63 m2 135.88 760 mm; 6 sleepers high 68.54 2.75 56.38 - 98.77 m2 155.15
Excavate foundation trench; set railway sleepers vertically on end in concrete 1:3:6 continuous foundation to 33.3% of their length to form retaining wall Grade 1 hardwood; finished height above ground level 300 mm 13.68 3.00 61.50 2.05 26.60 m 90.16 500 mm 19.83 3.00 61.50 2.05 35.82 m 99.38 600 mm 27.56 3.00 61.50 2.05 52.60 m 116.16 750 mm 29.75 3.50 71.75 2.05 55.88 m 129.68 1.00 m 40.65 3.75 76.88 2.05 63.11 m 142.04
Excavate and place vertical steel universal beams 165 wide in concrete base at 2.590 centres; fix railway sleepers set horizontally between beams to form horizontal fence or retaining wall Grade 1 hardwood; bay length 2.590 m 0.50 m high; (2 sleepers) 16.50 2.50 51.25 - 59.93 bay 111.18 750 m high; (3 sleepers) 24.25 2.60 53.30 - 88.97 bay 142.27 1.00 m high; (4 sleepers) 32.50 3.00 61.50 - 114.64 bay 176.14 1.25 m high; (5 sleepers) 41.50 3.50 71.75 - 147.97 bay 219.72 1.50 m high; (6 sleepers) 48.75 3.00 61.50 - 176.10 bay 237.60 1.75 m high; (7 sleepers) 56.75 3.00 61.50 - 184.10 bay 245.60
PC Labour Labour Plant Material Excluding site overheads and profit £ hours £ £ £ rate £
Retaining walls; Maccaferri Ltd Wire mesh gabions; galvanized mesh 80 mm x 100 mm; filling with broken stones 125 mm - 200 mm size; wire down securely to manufacturer's instructions; filling front face by hand 2 x 1 x 0.50 m 22.16 2.00 41.00 6.88 91.46 nr 139.33 2 x 1 x 1.00 m 31.04 4.00 82.00 13.75 169.64 nr 265.39
PVC coated gabions 2 x 1 x 0.5m 28.67 2.00 41.00 6.88 97.97 nr 145.84 2 x 1 x 1.00 m 40.36 4.00 82.00 13.75 178.96 nr 274.71
D20 EXCAVATING AND FILLING
MACHINE SELECTION TABLE
Road Equipment Ltd; machine volumes for excavating/filling only and placing excavated material alongside or to a dumper; no bulkages are allowed for in the material volumes; these rates should be increased by user-preferred percentages to suit prevailing site conditions; the figures in the next section for "Excavation mechanical" and filling allow for the use of banksmen within the rates shown below 1.5 tonne excavators; digging volume 1 cycle/minute; 0.04 m3 - 0.42 8.54 2.70 - m3 11.24 2 cycles/minute; 0.08 m3 - 0.21 4.27 1.68 - m3 5.95 3 cycles/minute; 0.12 m3 - 0.14 2.85 1.35 - m3 4.20
3 tonne excavators; digging volume 1 cycle/minute; 0.13 m3 - 0.13 2.63 1.52 - m3 4.15 2 cycles/minute; 0.26 m3 - 0.06 1.31 1.04 - m3 2.35 3 cycles/minute; 0.39 m3 - 0.04 0.88 1.01 - m3 1.88
5 tonne excavators; digging volume 1 cycle/minute; 0.28 m3 - 0.06 1.22 1.01 - m3 2.23 2 cycles/minute; 0.56 m3 - 0.03 0.61 0.54 - m3 1.15 3 cycles/minute; 0.84 m3 - 0.02 0.41 0.49 - m3 0.89
Dumpers; Road Equipment Ltd 1 tonne high tip skip loader; volume 0.485 m3 (775 kg) 5 loads per hour - 0.41 8.45 1.45 - m3 9.91 7 loads per hour - 0.29 6.04 1.08 - m3 7.12 10 loads per hour - 0.21 4.23 0.81 - m3 5.04
3 tonne dumper; maximum volume 2.40 m3
(3.38 t); available volume 1.9 m3
4 loads per hour - 0.14 2.85 0.53 - m3 3.38 5 loads per hour - 0.11 2.28 0.43 - m3 2.71 7 loads per hour - 0.08 1.63 0.32 - m3 1.95 10 loads per hour - 0.06 1.14 0.24 - m3 1.38
Lifting turf for preservation hand lift and stack - 0.08 1.71 - - m2 1.71
Load to wheelbarrows and dispose offsite by skip 25 m distance - 0.02 0.43 3.08 - m2 3.50
PC Labour Labour Plant Material Excluding site overheads and profit £ hours £ £ £ rate £
D20 EXCAVATING AND FILLING – cont'd
Lifting turf for preservation – cont'd Note: The figures in this section relate to the machine capacities shown in the Major Works section of this book. The figures below allow for dig efficiency based on depth, bulkages of 25% on loamy soils (adjustments should be made for different soil types) and for a banksman.
