Apparatus and method for determining in situ pore fluid...

Details Apparatus and method for determining in situ pore fluid... Apparatus and method for determining in situ pore fluid...

2007-04-10

2007-04-10

Raevis, Robert (Department: 2856)

Measuring and testing

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

Earth stresses

C073S009000

Reexamination Certificate

active

10693624

ABSTRACT:
An apparatus and methods for determining in situ pore fluid and soil properties at a particular subsurface location are disclosed. In one embodiment, the apparatus comprises a penetrating tip member configured to penetrate soil. The apparatus further comprises an attachment module coupled to the penetrating tip member. The attachment module includes at least one mandrel that includes a piezo sensor. An in situ measurement of pore pressure is obtained by the piezo sensor at a depth that corresponds to the location of the at least one mandrel on the attachment module.

REFERENCES:
patent: 4453401 (1984-06-01), Sidey
patent: 5319959 (1994-06-01), Cooper et al.
patent: 5921328 (1999-07-01), Babineau et al.
patent: 6208940 (2001-03-01), Kram et al.
Definitions of “sleeve” and “mandrel” from American Heritage Dictionary, 1982.

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