Testing method and apparatus ground liquefaction and dynamic...

Details Testing method and apparatus ground liquefaction and dynamic... Testing method and apparatus ground liquefaction and dynamic...

2004-05-06

2009-12-01

Williams, Hezron (Department: 2856)

Measuring and testing

Borehole or drilling

Downhole test

Reexamination Certificate

active

07624630

ABSTRACT:
A testing method and apparatus for ground liquefaction and dynamic characteristics in the original position utilizing a boring hole, wherein the dynamic strength and deformation characteristics of a soil layer against a dynamic repetitive load, in an optional position in the ground can be obtained by a simple method. A measuring cell based on a three-chamber construction is used, and upper and lower soil layers (J1, J3) with an intermediate soil layer (J2) therebetween are alternately subjected to a dynamic repetitive load, and what influence there is on the intermediate soil layer (J2) is investigated from the relation between pressure and displacement.

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patent: 54-135407 (1979-10-01), None
patent: 06-173240 (1994-06-01), None
patent: 2002-188137 (2002-07-01), None
patent: 2003-129458 (2003-05-01), None

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