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 500.00 Number; 150mm nominal dia. at base – – – – nr 55.00 Depth; 150mm nominal dia. of base
in holes of maximum depth not exceeding 5m – – – – m 20.00 in holes of maximum depth 5-10m – – – – m 20.00 in holes of maximum depth 10-20m – – – – m 25.00 in holes of maximum depth 20-30m – – – – m 32.00
Depth backfilled; imported pulverized fuel ash – – – – m 5.50 Depth backfilled; imported gravel – – – – m 7.70 Depth backfilled; bentonite grout – – – – m 11.00 Chiselling to prove rock or to penetrate obstructions – – – – h 50.00 Standing time of rig and crew – – – – h 50.00
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 1050.00 Setting up at each borehole position – – – – nr 8.40 Depth without core recovery; nominal minimum core dia. 100mm
ne 5.0m deep – – – – m 33.60 5-10m deep – – – – m 33.60 10-20m deep – – – – m 34.65 20-30m deep – – – – m 34.65
Depth with core recovery; nominal minimum core dia. 75mm
ne 5.0m deep – – – – m 73.50 5-10m deep – – – – m 73.50 10-20m deep – – – – m 81.90 20-30m deep – – – – m 92.40
Depth cased; semi-rigid plastic core barrel liner – – – – m 6.30
hours £ £ £ rate £
SAMPLES From the surface or from trial pits and trenches
undisturbed soft material; minimum 200mm cube – – – – nr 16.25 disturbed soft material; minimum 5kg – – – – nr 2.55 rock; minimum 5kg – – – – nr 10.15 groundwater; miniumum 17 l – – – – nr 4.50
From boreholes open tube; 100mm dia. × 450mm long – – – – nr 16.00 disturbed; minimum 5kg – – – – nr 2.50 groundwater; minimum 1 l – – – – nr 4.00 stationary piston – – – – nr 4.00 Swedish foil – – – – nr 25.00 Delft – – – – nr 25.00 Bishop sand – – – – nr 25.00
INSTRUMENTAL OBSERVATIONS
General Pressure head
standpipe; 75mm dia. HDPE pipe – – – – m 30.00 piezometer – – – – m 42.50 install protective cover – – – – nr 82.00 readings – – – – nr 20.50
LABORATORY TESTS Classification
moisture content – – – – nr 5.00 specific gravity – – – – nr 7.20 particle size analysis by sieve – – – – nr 30.00 particle size analysis by pipette or hydrometer – – – – nr 40.00
Chemical content organic matter – – – – nr 32.00 sulphate – – – – nr 22.00 pH value – – – – nr 7.00 contaminants; Comprehensive – – – – nr 250.00 contaminants; Abbreviated – – – – nr 175.00 contaminants; Mini, Screening – – – – nr 145.00 contaminants; nitrogen herbicides – – – – nr 130.00 contaminants; organophosphorus pesticides – – – – nr 110.00 contaminants; organochlorine pesticides – – – – nr 110.00
Compaction standard – – – – nr 130.00 heavy – – – – nr 130.00 vibratory – – – – nr 145.00
Permeability falling head – – – – nr 60.00
Soil strength quick undrained triaxial; set of three 38mm dia. specimens – – – – nr 30.00 shear box; peak only; size of shearbox 100× 100mm – – – – nr 37.50 California bearing ratio; typical – – – – nr 44.00
hours £ £ £ rate £
LABORATORY TESTS – cont Rock strength
point load test; minimum 5kg sample – – – – nr 75.00
PROFESSIONAL SERVICES Technician – – – – hr 35.00 Technician engineer – – – – hr 47.00 Engineer or geologist
graduate – – – – hr 47.00 chartered – – – – hr 60.00 principal or consultant – – – – hr 80.50
Visits to the site technician – – – – nr 35.00 technician engineer/graduate engineer or geologist – – – – nr 47.00 chartered engineer – – – – nr 60.00 principal or consultant – – – – nr 80.50
Overnight stays in connection with visits to the site technician – – – – nr 66.50 technician engineer/graduate engineer or geologist – – – – nr 66.50 chartered engineer/senior geologist – – – – nr 86.50 principal or consultant – – – – nr 86.50
