ABSTRACT
Drainage sundries Extra over any item of drainage for excavation in rock 0.65 26.74 37.70 - m3 64.44 mass concrete 0.84 34.56 49.04 - m3 83.60 reinforced concrete 1.18 48.54 68.76 - m3 117.30
Excavation of soft spots, backfilling concrete grade C15P 0.30 12.34 17.41 94.93 m3 124.68
SPECIAL PIPE LAYING METHODS
There are many factors, apart from design consideration, which influence the cost of pipe jacking, so that it is only possible to give guide prices for a sample of the work involved. For more reliable estimates it is advisable to seek the advice of a Specialist Contractor. The main cost considerations are: * the nature of the ground * length of drive * location * presence of water * depth below surface
Provision of all plant, equipment and labour establishing thrust pit; 6 m x 4 m x 8 m deep - - - - item 30000.00 reception pit; 4 m x 4 m x 8 m deep - - - - item 22000.00 mobilise and set up pipe jacking equipment - - - - item 44000.00
CLASS L: AND EXCAVATION
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
SPECIAL PIPE LAYING METHODS - cont'd
Pipe jacking, excluding the cost of non-drainage materials; concrete pipes BS 5911 Part 1 Class 120 with rebated joints, steel reinforcing band; length not exceeding 50 m; in sand and gravel 900 mm nominal bore - - - - m 1421.40 1200 mm nominal bore - - - - m 1835.40 1500 mm nominal bore - - - - m 1932.50 1800 mm nominal bore - - - - m 2185.50
BEDS
Imported sand 100 mm deep bed for pipes nominal bore 100 mm 0.02 0.82 0.70 2.64 m 4.17 150 mm 0.02 0.82 0.70 2.85 m 4.38 225 mm 0.03 1.23 1.06 3.32 m 5.62 300 mm 0.04 1.65 1.41 3.48 m 6.53
150 mm deep bed for pipes nominal bore 150 mm 0.06 2.47 2.11 4.31 m 8.89 225 mm 0.07 2.88 2.47 4.98 m 10.32 300 mm 0.09 3.70 3.17 5.27 m 12.14 400 mm 0.12 4.94 4.23 5.89 m 15.06 450 mm 0.14 5.76 4.93 6.90 m 17.59 600 mm 0.17 6.99 5.99 8.53 m 21.51 750 mm 0.19 7.82 6.70 9.53 m 24.05 900 mm 0.21 8.64 7.40 11.16 m 27.20 1200 mm 0.25 10.28 8.81 13.13 m 32.22
Imported granular material 100 mm deep bed for pipes nominal bore 100 mm 0.02 0.82 0.70 1.78 m 3.31 150 mm 0.03 1.23 1.06 1.93 m 4.22 225 mm 0.04 1.65 1.41 2.21 m 5.26 300 mm 0.05 2.06 1.76 2.36 m 6.18
150 mm deep bed for pipes nominal bore 150 mm 0.06 2.47 2.11 2.88 m 7.47 225 mm 0.08 3.29 2.82 3.32 m 9.43 300 mm 0.10 4.11 3.52 3.55 m 11.18 400 mm 0.13 5.35 4.58 4.00 m 13.93 450 mm 0.15 6.17 5.29 4.61 m 16.06 600 mm 0.18 7.40 6.34 5.74 m 19.49 750 mm 0.20 8.23 7.05 6.40 m 21.68 900 mm 0.22 9.05 7.75 7.51 m 24.32 1200 mm 0.26 10.70 9.16 8.82 m 28.68
Mass concrete 100 mm deep bed for pipes nominal bore 100 mm 0.07 2.88 2.47 7.26 m 12.61 150 mm 0.08 3.29 2.82 7.87 m 13.98 225 mm 0.09 3.70 3.17 9.09 m 15.96 300 mm 0.11 4.53 3.88 9.70 m 18.10
CLASS L: AND EXCAVATION
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
150 mm deep bed for pipes nominal bore 100 mm 0.10 4.11 3.52 10.91 m 18.55 150 mm 0.12 4.94 4.23 11.80 m 20.97 225 mm 0.14 5.76 4.93 13.63 m 24.33 300 mm 0.16 6.58 5.64 14.55 m 26.77 400 mm 0.19 7.82 6.70 16.32 m 30.83 450 mm 0.21 8.64 7.40 19.08 m 35.12 600 mm 0.24 9.87 8.46 23.60 m 41.93 750 mm 0.26 10.70 9.16 26.32 m 46.18 900 mm 0.28 11.52 9.87 30.88 m 52.26 1200 mm 0.32 13.16 11.28 36.31 m 60.75
HAUNCHES
The following items allow for dressing the haunching material half-way up the pipe barrel for the full width of the bed and then dressing in triangular fashion to the crown of the pipe. The items exclude the drain bed.
