Ground Investigation Field Works

Ground Investigation Section offers the following highly professional, independent ground investigation services:-

Sample Excavation

  • Trial pits

  • Trial Trenches

  • Slope Surface Stripping


Ground Boring

  • Corehole Drilling

  • Rotary Core Drilling
    (Including Air-foam Drilling)


Sampling

  • Preparation of the following samples:

  • Undisturbed & disturbed Samples

  • Thin-walled Piston Samples

  • Continuous Soil and Rock Samples

  • Mazier Samples

  • Block Samples

  • Groundwater Samples
Field Testing in Boreholes

  • Standard Penetration Test

  • Vane Shear Test

  • Constant Head Permeability Test

  • Falling Head Permeability Test

  • Packer (water absorption) Test

  • Plate Loading Test

  • Impression Packer Test

  • Geologging Optical Televiewer (featuring)

  • For Cast-in-Place Concrete Foundation

  • Pre-drilling for determination of rockhead level

  • Coring/drilling for verification of founding stratum


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    29A,On Chuen Street, On Lok Tsuen, Fanling, N.T. Hong Kong
    Techno Centre, 33 On Kui Street, On Lok Tsuen, Fanling, N.T. Hong Kong
    28 On Kui Street, On Lok Tsuen, Fanling, N.T. Hong Kong
    Tel : (852) 2677 2032, 2677 2138 Fax :(852) 2677 0351, 2677 4691 E-MAIL : castco@netvigator.com