ABSTRACT
Excavation of soft spots, backfilling concrete grade C15P 0.30 12.22 13.87 89.51 m3 115.60
hours £ £ £ rate £
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; 6m × 4m × 8m deep – – – – item 30000.00 reception pit; 4m × 4m × 8m deep – – – – item 22000.00 mobilise and set up pipe jacking equipment – – – – item 44000.00
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 50m; in sand and gravel
900mm nominal bore – – – – m 1279.26 1200mm nominal bore – – – – m 1651.86 1500mm nominal bore – – – – m 1932.50 1800mm nominal bore – – – – m 2185.50
BEDS
Imported sand 100mm deep bed for pipes nominal bore
100mm 0.02 0.81 0.46 2.29 m 3.56 150mm 0.02 0.81 0.46 2.47 m 3.74 225mm 0.03 1.22 0.69 2.88 m 4.79 300mm 0.04 1.63 0.92 3.01 m 5.56
150mm deep bed for pipes nominal bore 150mm 0.06 2.44 1.38 3.73 m 7.55 225mm 0.07 2.85 1.61 4.31 m 8.77 300mm 0.09 3.67 2.06 4.57 m 10.30 400mm 0.12 4.89 2.75 5.11 m 12.75 450mm 0.14 5.71 3.21 5.98 m 14.90 600mm 0.17 6.93 3.90 7.39 m 18.22 750mm 0.19 7.74 4.36 8.26 m 20.36 900mm 0.21 8.56 4.82 9.67 m 23.05 1200mm 0.25 10.19 5.73 11.37 m 27.29
hours £ £ £ rate £
Imported granular material 100mm deep bed for pipes nominal bore
100mm 0.02 0.81 0.46 1.78 m 3.05 150mm 0.03 1.22 0.69 1.93 m 3.84 225mm 0.04 1.63 0.92 2.21 m 4.76 300mm 0.05 2.04 1.15 2.36 m 5.55
150mm deep bed for pipes nominal bore 150mm 0.06 2.44 1.38 2.88 m 6.70 225mm 0.08 3.26 1.83 3.32 m 8.41 300mm 0.10 4.08 2.29 3.55 m 9.92 400mm 0.13 5.30 2.98 4.00 m 12.28 450mm 0.15 6.11 3.44 4.61 m 14.16 600mm 0.18 7.33 4.13 5.74 m 17.20 750mm 0.20 8.15 4.59 6.40 m 19.14 900mm 0.22 8.96 5.05 7.51 m 21.52 1200mm 0.26 10.60 5.96 8.82 m 25.38
Mass concrete 100mm deep bed for pipes nominal bore
100mm 0.07 2.85 1.61 6.84 m 11.30 150mm 0.08 3.26 1.83 7.42 m 12.51 225mm 0.09 3.67 2.06 8.57 m 14.30 300mm 0.11 4.48 2.52 9.15 m 16.15
150mm deep bed for pipes nominal bore 100mm 0.10 4.08 2.29 10.28 m 16.65 150mm 0.12 4.89 2.75 11.13 m 18.77 225mm 0.14 5.71 3.21 12.85 m 21.77 300mm 0.16 6.52 3.67 13.72 m 23.91 400mm 0.19 7.74 4.36 15.39 m 27.49 450mm 0.21 8.56 4.82 17.99 m 31.37 600mm 0.24 9.78 5.50 22.25 m 37.53 750mm 0.26 10.60 5.96 24.82 m 41.38 900mm 0.28 11.41 6.42 29.11 m 46.94 1200mm 0.32 13.04 7.34 34.23 m 54.61
hours £ £ £ rate £
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.
