SITE INVESTIGATION (BS 879)

Flush-Jointed & Coupled Casing

Geotechnical Products
Site Investigation BS 879

Site Investigation casing (threaded to BS 879 waterwell specification)

Site Investigation casing (threaded to BS 879 waterwell specification) is used in Shell and Auger style drilling and is carried out to ascertain ground conditions and enable sampling of soils for calculations. This type of casing is also known as waterwell casing and is used to line a borehole.

At a glance

Made in Britain
  • 114.3mm – 813.0mm OD

  • Threaded to BS 879 waterwell specification

  • Shell and Auger Style Drilling

  • Lines boreholes

  • BS EN 1090 accredited

  • RISQIS accredited

BS879
 OD (mm) T.P.I W (mm) OB (mm) Approx. Weight (kg/m)
114.3 4 8.0 98.3 20.88
139.7 4 8.0 123.7 27.32
168.3 4 9.5 149.3 31.14
193.7 4 9.5 174.7 43.08
219.1 4 9.5 200.1 49.03
244.3 4 9.5 225.5 54.97
273.0* 4 11.0 251.0 71.35
323.9* 4 11.0 301.9 87.8
355.6* 4 11.0 333.6 93.61
406.4 4 12.5 381.4 121.57
457.0 4 12.5 432.0 139.42
508.0 4 12.5 483.0 152.32
559.0 4 12.5 534.0 167.6
610.0 4 12.5 585.0 181.45
660.0 3 15.0 630.0 242.82
711.0 3 15.0 681.0 257.67
762.0 3 15.0 732.0 276.48
813.0 3 16.0 781.0 314.89

*Can be supplied in 12.7 mm wall as an alternative

BS 879 Coupled Waterwell Casing

Pipe Sizes

OD (mm) W (mm) OB (mm) Weight
114.3 7.9 228.7 46.09
8.9 226.7 51.71
10.0 224.5 57.83
127.0 7.1 258.8 46.57
8.9 255.5 57.99
10.2 252.7 66.13
11.4 250.3 73.57
12.6 247.9 80.94
139.7 8.5 281.5 60.79
9.5 279.5 67.70
11.0 276.5 77.99
12.4 273.7 87.48
168.3 8.4 322.9 68.63
9.6 320.3 78.94
10.9 317.9 88.38
12.2 315.3 98.53
13.1 313.3 105.51
177.8 9.5 387.4 68.63
11.1 384.2 78.94
12.6 381.2 88.38
193.7 11.0 451.0 125.32
219.1 11.1 485.8 136.01
12.7 482.6 155.12
16.1 475.8 195.30

Pipe Sizes (cont)

OD (mm) W (mm) OB (mm) Weight
244.5 7.9 228.7 46.09
8.9 226.7 51.71
10.0 224.5 57.83
273.1 7.1 258.8 46.57
8.9 255.5 57.99
10.2 252.7 66.13
11.4 250.3 73.57
12.6 247.9 80.94
298.5 8.5 281.5 60.79
9.5 279.5 67.70
11.0 276.5 77.99
12.4 273.7 87.48
339.7 8.4 322.9 68.63
9.6 320.3 78.94
10.9 317.9 88.38
12.2 315.3 98.53
13.1 313.3 105.51
406.4 9.5 387.4 68.63
11.1 384.2 78.94
12.6 381.2 88.38
473.1 11.0 451.0 125.32
508.0 11.1 485.8 136.01
12.7 482.6 155.12
16.1 475.8 195.30

Short Round Coupling Sizes

OD (mm) OD (mm) L (mm)
114.3 127.0 158.8
127.0 141.3 165.1
139.7 153.7 171.4
168.3 187.7 184.2
177.8 194.5 184.2
193.7 215.9 190.5
219.1 244.5 196.8
244.5 269.9 196.8
273.1 298.4 203.2
298.5 323.8 203.2
339.7 365.1 203.2
406.4 431.8 228.6
473.1 508.0 228.6
508.0 533.4 228.6

Supplied as 8 TPI Tapered V threads.

Either style of casing diameter up to 406mm can be supplied up to 6 metre effective, diameter above 406mm can be supplied up to 3 metre effective.

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