
Shallow Geotechnical Survey
Shallow Geotechnical Survey
Rapid shallow geotechnical probing and sampling to understand the shallow subsurface for intertidal cable installations.
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Light and medium dynamic probing
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Handheld CPT
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Handheld corer
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Laboratory testing


Geo-4D’s selection of shallow sampling and testing methods provide a cost-effective way to quickly characterise cable landfalls for trenching operations:
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Determine beach bearing capacities for installation equipment and plant.
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Determine depth to shallow bedrock.
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Identify hard-to-trench coarse-grained sediments (gravel and cobbles).
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Identify and sample soft clay layers, that may pose a punch-through risk to plant and equipment and may pose a risk to cable thermal dissipation (i.e. low thermal conductivity).

Geo-4D Shallow Geotechnical Survey