Subsurface material property measurement

Details Subsurface material property measurement Subsurface material property measurement

2007-06-26

2007-06-26

Raevis, Robert (Department: 2856)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

Earth stresses

Reexamination Certificate

active

10995024

ABSTRACT:
Subsurface material property measurements, such as soil or chemical properties, are obtained in situ by a direct push method that includes rotating a ring bit at the end of a casing to drill through subsurface materials, lowering a measurement probe through the advanced casing, extending the lowered measurement probe through the ring bit, and advancing the extended probe through the soil at a controlled rate while gathering material property data from sensors attached to the probe. The probe may be withdrawn for drilling, and then replaced for further data gathering.

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