- DRILLING SERVICES -

 

We also offer the services of our experienced drilling crews on a contract basis.

 

Services offered include: -

 

 

Window Sampling and Dynamic Probe Testing


Window sampling is carried out by either track mounted percussive samplers or hand held hydraulic percussive samplers. Samples are retrieved in seamless plastic tubes for logging by a suitably qualified engineer. Window sampling is suited to restricted access sites, contamination investigations, and where disturbance must be kept to a minimum. The track mounted equipment is also capable of carrying out dynamic probe testing. Instrumentation can be installed in the boreholes.

 

Key features:-

  • SPT and CPT tests.
  • Various size casing available.
  • PTS certified staff.
  • CSCS certified staff.

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Cable Percussive Boreholes


Cable percussive boreholes are a common method of site investigation. Using a land rover towed rig or a specialist cut down rig suited to restricted access locations most sites can be investigated. In-situ testing techniques including Standard Penetration Testing (SPT), Permeability Testing, Borehole Vane Testing and Packer Testing can all be carried out in the boreholes in order to allow our engineers to provide information for geotechnical design. Disturbed and undisturbed samples are retrieved from the boreholes for inspection and logging by engineers and subsequent testing in our laboratories. Instrumentation can be installed in the boreholes.

 

Key features:-

  • Various size casings available (150 mm - 250 mm).
  • A cost effective way of traditional drilling.
  • PTS certified staff.
  • CSCS certified staff.

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Rotary Boreholes


Rotary drilling techniques are employed where boreholes are required into very dense gravel or bedrock. Samples of bedrock are recovered in seamless plastic tubes for subsequent logging by a suitably qualified engineer and for laboratory testing. Most of our rotary coring work relies on the use of our Comacchio MC300 drilling rigs. The rigs are suitable for limited access works.

 

Key features:-

  • Flight Augers - various sizes from 100 mm to 200 mm diameter.
  • Rotary Core Drill and case sizes from 76 mm to 150 mm diameter.
  • Rotary window sample from 76 mm to 131 mm diameter.
  • SPT's, CPT's, U4's.
  • Packer tests from 76 mm to 150 mm diameter.
  • Variable head and constant head permeability testing.
  • Borehole Vane testing.
  • Core Orientation.
  • DTH from 78 mm to 150 mm diameter.
  • Simultaneous drilling and casing using a symmetrix 140 mm diameter casing.
  • Flush using air, air-mist, water, foam, polymer.
  • PTS certified staff.
  • CSCS certified staff.

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Drilling - our expertise

 

We are highly experienced at working over water - here we used rotary drilling techniques on a jackup platform

 

 

Working with artesian aquifers

 
Working on escarpments
Working on slopes

 

Qualified - experienced teams

 
We use the latest equipment and techniques

 

 

For further details on any of our drilling services please contact:-

Niel Winter: Plant Manager. Tel: 0117 947 1000 -or- Email: niel.winter@soils.co.uk

 

JUNE 2009

 

Structural Soils Ltd - Comprehensive Site Investigation Services

 

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