Class Q: Piling ancillaries | 51 | v26 | Spon's Civil Engineering and

ABSTRACT

Permanent casings; each length not exceeding 13m 450mm diameter piles – – – – m 66.15 600mm diameter piles – – – – m 89.83 750mm diameter piles – – – – m 112.45

Permanent casings; each length exceeding 13m 450mm diameter piles – – – – m 68.78 600mm diameter piles – – – – m 95.55 750mm diameter piles – – – – m 118.23

Enlarged bases diameter 1400mm; to 450mm diameter piles – – – – nr 229.70 diameter 1800mm; to 600mm diameter piles – – – – nr 279.95 diameter 2100mm; to 750mm diameter piles – – – – nr 314.94

Cutting off surplus lengths 450mm diameter piles – – – – m 23.86 600mm diameter piles – – – – m 34.07 750mm diameter piles – – – – m 40.90

Preparing heads 450mm diameter piles – – – – nr 25.53 600mm diameter piles – – – – nr 40.90 750mm diameter piles – – – – nr 61.33 Collection from around pile heads of spoil accruing from piling operations and depositing in spoil heaps (For ﬁnal disposal see Class E - Excavation Ancillaries) – – – – m3 2.96

hours £ £ £ rate £

CAST IN PLACE CONCRETE PILES – cont

Reinforcement; mild steel Straight bars, nominal size

6mm – – – – t 619.50 8mm – – – – t 619.50 10mm – – – – t 614.25 12mm – – – – t 603.75 16mm – – – – t 598.50 25mm – – – – t 598.50 32mm – – – – t 603.75 50mm – – – – t 609.00

Helical bars, nominal size 6mm – – – – t 640.50 8mm – – – – t 640.50 10mm – – – – t 635.25 12mm – – – – t 624.75

Reinforcement; high tensile steel Straight bars, nominal size

6mm – – – – t 640.50 8mm – – – – t 640.50 10mm – – – – t 635.25 12mm – – – – t 624.75 16mm – – – – t 619.50 25mm – – – – t 619.50 32mm – – – – t 624.75 50mm – – – – t 630.00

Helical bars, nominal size 6mm – – – – t 661.50 8mm – – – – t 661.50 10mm – – – – t 656.25 12mm – – – – t 645.75

Couplers; Lenton type A; threaded ends on reinforcing bars

12mm 0.09 10.23 – 6.72 nr 16.95 16mm 0.09 10.23 – 8.11 nr 18.34 20mm 0.09 10.23 – 11.84 nr 22.07 25mm 0.09 10.23 – 16.37 nr 26.60 32mm 0.09 10.23 – 22.47 nr 32.70 40mm 0.09 10.23 – 30.87 nr 41.10

Couplers; Lenton type B; threaded ends on reinforcing bars

12mm 0.09 10.23 – 21.59 nr 31.82 16mm 0.09 10.23 – 25.02 nr 35.25 20mm 0.09 10.23 – 27.75 nr 37.98 25mm 0.09 10.23 – 32.04 nr 42.27 32mm 0.09 10.23 – 43.30 nr 53.53 40mm 0.09 10.23 – 63.48 nr 73.71

hours £ £ £ rate £

PREFORMED CONCRETE PILES

General Preparing heads

235×235mm piles – – – – nr 33.73 275×275mm piles – – – – nr 46.06 350×350mm piles – – – – nr 70.83

TIMBER PILES

Douglas Fir Cutting off surplus lengths

cross-sectional area: 0.025-0.05m2 – – – – nr 2.94 cross-sectional area: 0.05-0.1m2 – – – – nr 5.25 cross-sectional area: 0.1-0.15m2 – – – – nr 6.73 cross-sectional area: 0.15-0.25m2 – – – – nr 12.89

Preparing heads cross-sectional area: 0.025-0.05m2 – – – – nr 2.94 cross-sectional area: 0.05-0.1m2 – – – – nr 5.25 cross-sectional area: 0.1-0.15m2 – – – – nr 6.73 cross-sectional area: 0.15-0.25m2 – – – – nr 12.89

Greenheart Cutting off surplus lengths

cross-sectional area: 0.025-0.05m2 – – – – nr 5.81 cross-sectional area: 0.05-0.1m2 – – – – nr 10.44 cross-sectional area: 0.1-0.15m2 – – – – nr 13.52 cross-sectional area: 0.15-0.25m2 – – – – nr 25.05

Preparing heads cross-sectional area: 0.025-0.05m2 – – – – nr 5.81 cross-sectional area: 0.05-0.1m2 – – – – nr 10.44 cross-sectional area: 0.1-0.15m2 – – – – nr 13.52 cross-sectional area: 0.15-0.25m2 – – – – nr 25.05

hours £ £ £ rate £

ISOLATED STEEL PILES

Steel bearing piles Steel bearing piles are commonly carried out by a Specialist Contractor and whose advice should be sought to arrive at accurate costing. However the following items can be used to assess a budget cost for such work. The item for number of pile extensions includes for the cost of setting up the rig at the pile position together with welding the extension to the top of the steel bearing pile. The items for length of pile extension cover the material only, the driving cost being included in Class P. Number of pile extensions

at each position – – – – nr 64.50 Length of pile extensions, each length not exceeding 3m; steel EN 10025grade S275

mass 45kg/m – – – 64.33 m 64.33 mass 54kg/m – – – 77.19 m 77.19 mass 63kg/m – – – 90.77 m 90.77 mass 71kg/m – – – 102.29 m 102.29 mass 79kg/m – – – 115.59 m 115.59 mass 85kg/m – – – 122.46 m 122.46 mass 95kg/m – – – 139.00 m 139.00 mass 109kg/m – – – 161.93 m 161.93 mass 110kg/m – – – 160.95 m 160.95 mass 126kg/m – – – 184.36 m 184.36 mass 149kg/m – – – 218.01 m 218.01 mass 133kg/m – – – 197.59 m 197.59 mass 152kg/m – – – 225.81 m 225.81 mass 174kg/m – – – 258.49 m 258.49 mass 186kg/m – – – 272.15 m 272.15 mass 223kg/m – – – 326.29 m 326.29

Length of pile extensions, each length exceeding 3m; steel EN 10025grade S275

hours £ £ £ rate £

Number of pile extensions section size 203×203 × any kg/m – – – – nr 215.00 section size 254×254 × any kg/m – – – – nr 258.00 section size 305×305 × any kg/m – – – – nr 295.63 section size 356×368 × any kg/m – – – – nr 327.88

Cutting off surplus lengths mass 30-60kg/m – – – – nr 75.25 mass 60-120kg/m – – – – nr 107.50 mass 120-250kg/m – – – – nr 145.13

Burning off tops of piles to level mass 30-60kg/m – – – – nr 75.25 mass 60-120kg/m – – – – nr 107.50 mass 120-250kg/m – – – – nr 145.13

INTERLOCKING STEEL PILES

Arcelor Mittal Z section steel piles; EN 10248grade S270GP steel Steel bearing piles are commonly carried out by a Specialist Contractor and whose advice should be sought to arrive at accurate costing. However the following items can be used to assess a budget cost for such work. The item for number of pile extensions includes for welding the extension to the top of the steel bearing pile. The items for length of pile extension cover the material only, the driving cost being included in Class P. Number of pile extensions Cutting off surplus lengths

section modulus 500-800cm3/m – – – – m 23.20 section modulus 800-1200cm3/m – – – – m 23.20 section modulus 1200-2000cm3/m – – – – m 18.50 section modulus 2000-3000cm3/m – – – – m 23.20 section modulus 3000-4000cm3/m – – – – m 18.50

Extract piling and stacking on site section modulus 500-800cm3/m – – – – m2 36.93 section modulus 800-1200cm3/m – – – – m2 18.50 section modulus 1200-2000cm3/m – – – – m2 18.50 section modulus 3000-4000cm3/m – – – – m2 18.50 section modulus 2000-3000cm3/m – – – – m2 18.50

hours £ £ £ rate £

INTERLOCKING STEEL PILES – cont

Arcelor Mittal U section steel piles; EN 10248grade S270GP steel Steel bearing piles are commonly carried out by a Specialist Contractor and whose advice should be sought to arrive at accurate costing. However the following items can be used to assess a budget cost for such work. The item for number of pile extensions includes for welding the extension to the top of the steel bearing pile. The items for length of pile extension cover the material only, the driving cost being included in Class P. Number of pile extensions Cutting off surplus lengths

section modulus 500-800cm3/m – – – – m 22.10 section modulus 800-1200cm3/m – – – – m 22.10 section modulus 800-1200cm3/m – – – – m 22.10 section modulus 2000-3000cm3/m – – – – m 22.10 section modulus 3000-4000cm3/m – – – – m 22.10

Extract piling and stack on site section modulus 500-800cm3/m – – – – m2 18.50 section modulus 800-1200cm3/m – – – – m2 18.50 section modulus 800-1200cm3/m PU12 – – – – m2 18.50 section modulus 800-1200cm3/m PU18 – – – – m2 18.50 section modulus 2000-3000cm3/m – – – – m2 18.50 section modulus 3000-4000cm3/m – – – – m2 18.50

OBSTRUCTIONS

General Obstructions – – – – hr 94.76

PILE TESTS

Cast in place Pile tests; 500mm diameter working pile; maximum test load of 600kN using non-working tension piles as reaction tripod

ﬁrst pile – – – – nr 4725.00 subsequent pile – – – – nr 3675.00

Take and test undisturbed soil samples; tripod – – – – nr 168.00 Make, cure and test concrete cubes; tripod – – – – nr 12.60 Pile tests; working pile; maximum test load of 1½ times working load; ﬁrst pile

450mm / 650kN – – – – nr 2500.00 600mm / 1400kN – – – – nr 5250.00 750mm / 2200kN – – – – nr 9500.00

hours £ £ £ rate £

Pile tests; working pile; maximum test load of 1½ times working load; second and subsequent piles

450mm / 650kN – – – – nr 2300.00 600mm / 1400kN – – – – nr 5050.00 750mm / 2200kN – – – – nr 9100.00

Pile tests; working pile; electronic integrity testing; each pile (minimum 40 piles per visit) – – – – nr 11.50 Make, cure and test concrete cubes – – – – nr 22.00

Preformed Pile tests; working pile; maximum test load of 1.5 times working load – – – – nr 4080.00 Pile tests; working pile; dynamic testing with piling hammer – – – – nr 270.00

Steel bearing piles Steel bearing piles are commonly carried out by a Specialist Contractor and whose advice should be sought to arrive at accurate costing. However the following items can be used to assess a budget cost for such work. The following unit costs are based upon driving 100 nr steel bearing piles 15-24m long on a clear site with reasonable access. Supply is based on delivery 75miles from works, in loads over 20t. Establishment of pile testing equipment on site preliminary to any piling operation – – – – sum 1462.00 Carry out pile test on bearing piles irrespective of section using pile testing equipment on site up to 108 t load – – – – nr 4676.25

Driven-temporary casing Pile tests; 430mm diameter working pile; maximum test load of 1125kN using non-working tension piles as reaction; ﬁrst piles

bottom driven – – – – nr 3675.00 top driven – – – – nr 2992.50

Pile tests; 430mm diameter working pile; maximum test load of 1125kN using non-working tension piles as reaction; subsequent piles

bottom driven – – – – nr 1575.00 top driven – – – – nr 1575.00

Pile tests; working pile; electronic integrity testing; each pile (minimum 40 piles per visit) – – – – nr 14.91 Make cure and test concrete cubes – – – – nr 10.50

Driven - segmental casing Pile tests; 500mm diameter working pile; maximum test load of 600kN using non-working tension piles as reaction

ﬁrst pile – – – – nr 5512.50 subsequent piles – – – – nr 4200.00