Ground Investigation’s comprehensive range of in situ testing services are carried out by trained and experienced operators to international standards. Ground Investigation is committed to providing quality in situ test results that you can rely on.

Our moto: “Best Possible Data”

IN SITU TESTING

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Cone Penetration Testing (CPT)

The Cone Penetration Test (CPT) is undertaken by pushing an instrumented cone into the ground at a continuous rate.

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Flat Dilatometer Testing (DMT)

The dilatometer test (DMT) is carried out by pushing a flat plate with a membrane into the ground using a CPT rig.

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Dynamic probe super heavy (DPSH)

DPSH stands for dynamic probe super heavy. The DPSH test comprises driving a solid cone into the ground with a SPT-equivalent hammer.

SEISMIC TESTING

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Direct Push Downhole Seismic Testing (DPDH, SCPT, SDMT)

The direct push downhole seismic test (DPDH) is conducted by pushing a seismic module into the ground using a CPT rig. Combined with a CPT test this is known as a seismic cone penetration test (SCPT) or with a DMT, a seismic dilatometer test (SDMT).

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Direct Push Crosshole Seismic Testing (DPCH)

The direct push cross hole seismic test (DPDH) is conducted by pushing two separate seismic probes into the ground a set distance apart.

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Horizontal to Vertical Spectral Ratio (HVSR) Analysis

The HVSR system is used to determine site period.

SAMPLING AND PIEZOMETERS

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Direct Push Soil Sampling Systems

Ground Investigation operate several direct push soil sampling systems including the Pagani CPT sampler and the MOSTAP sampling system.

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Direct Drive Sampling

The Terrier sampling system obtains continuous core sampling by direct drive percussion rig.

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Piezometers and Environmental Wells

Standpipe piezometers or wells can be installed in Terrier boreholes or using our direct push method using any of our CPT rigs.

OTHER SERVICES

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Environmental Sampling

Environmental sampling can be undertaken using out terrier sampling system

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Screw Driving Sounding (SDS)

Swedish Weight Sounding (SWS) and Japanese modified Screw Driving Sounding (SDS), Fully automated test.

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CPT and DMT Analysis and Interpretation Services

We can help our clients make full use of the in situ test data by providing correlations to soil parameters and direct design solutions:

Difficult Access? No Problem

We specialise in providing in situ testing services on difficult access sites. We have many years experience in accessing all sorts of sites. Please contact us to discuss your difficult access site.

You may be surprised where our rigs can go.

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