ABSTRACT
The following costs are based on using Specialist Contractors and are for guidance only. Establishment of standard plant and equipment and removal on completion – – – – sum 11781.00 Number; 150mm nominal diameter at base – – – – nr 58.91 Depth; 150mm nominal diameter of base
in holes of maximum depth not exceeding 5m – – – – m 23.56 in holes of maximum depth 5 – 10m – – – – m 23.56 in holes of maximum depth 10-20m – – – – m 29.45 in holes of maximum depth 20-30m – – – – m 37.70 Depth backfilled; imported pulverised fuel ash – – – – m 5.89
Depth backfilled; imported gravel – – – – m 8.24 Depth backfilled; bentonite grout – – – – m 11.78 Chiselling to prove rock or to penetrate obstructions – – – – h 58.91 Standing time of rig and crew – – – – h 58.91
ROTARY DRILLED BOREHOLES
The following costs are based on using Specialist Contractors and are for guidance only. Establishment of standard plant and equipment and removal on completion – – – – sum 29452.50 Setting up at each borehole position – – – – nr 11.78 Depth without core recovery; nominal minimum core diameter 100mm
ne 5.0m deep – – – – m 37.70 5 – 10m deep – – – – m 37.70 10 – 20m deep – – – – m 38.88 20 – 30m deep – – – – m 38.88
Depth with core recovery; nominal minimum core diameter 75mm
ne 5.0m deep – – – – m 82.47 5 – 10m deep – – – – m 82.47 10 – 20m deep – – – – m 91.90 20 – 30m deep – – – – m 103.68
Depth cased; semi-rigid plastic core barrel liner – – – – m 7.07
SAMPLES From the surface or from trial pits and trenches
undisturbed soft material; minimum 200mm cube – – – – nr 19.15 disturbed soft material; minimum 5kg – – – – nr 3.00 rock; minimum 5kg – – – – nr 11.96 groundwater; miniumum 1 l – – – – nr 5.30
From boreholes open tube; 100mm diameter X 450mm long – – – – nr 18.85 disturbed; minimum 5kg – – – – nr 2.95 groundwater; minimum 1 l – – – – nr 4.71
hours £ £ £ rate £
SAMPLES – cont stationary piston – – – – nr 4.71 Swedish foil – – – – nr 29.45 Delft – – – – nr 29.45 Bishop sand – – – – nr 29.45
INSTRUMENTAL OBSERVATIONS
General Pressure head
standpipe; 75mm diameter HDPE pipe – – – – m 35.34 piezometer – – – – m 50.07 install protective cover – – – – nr 96.60 readings – – – – nr 24.15
LABORATORY TESTS Classification
moisture content – – – – nr 5.89 specific gravity – – – – nr 8.48 particle size analysis by sieve – – – – nr 35.34 particle size analysis by pipette or hydrometer – – – – nr 47.12
Chemical content organic matter – – – – nr 37.70 sulphate – – – – nr 25.91 pH value – – – – nr 8.24 contaminants; Comprehensive – – – – nr 294.52 contaminants; Abbreviated – – – – nr 206.17 contaminants; Mini, Screening – – – – nr 170.82 contaminants; nitrogen herbicides – – – – nr 153.15 contaminants; organophosphorus pesticides – – – – nr 129.59 contaminants; organochlorine pesticides – – – – nr 129.59
Compaction standard – – – – nr 153.15 heavy – – – – nr 153.15 vibratory – – – – nr 170.82
Permeability falling head – – – – nr 70.69
Soil strength quick undrained triaxial; set of three 38mm diameter specimens – – – – nr 35.34 shear box; peak only; size of shearbox 100× 100mm – – – – nr 44.18 California bearing ratio; typical – – – – nr 51.84
Rock strength point load test; minimum 5kg sample – – – – nr 88.36
hours £ £ £ rate £
PROFESSIONAL SERVICES Technician – – – – hr 41.23 Technician engineer – – – – hr 55.37 Engineer or geologist
graduate – – – – hr 55.37 chartered – – – – hr 70.69 principal or consultant – – – – hr 94.84
Visits to the Site technician – – – – nr 41.23 technician engineer/graduate engineer or geologist – – – – nr 55.37 chartered engineer – – – – nr 70.69 principal or consultant – – – – nr 94.84
Overnight stays in connection with visits to the site technician – – – – nr 78.34 technician engineer/graduate engineer or geologist – – – – nr 78.34 chartered engineer/senior geologist – – – – nr 101.90 principal or consultant – – – – nr 101.90
