Title:
LIQUEFACTION PHENOMENON PREDICTION SYSTEM
Document Type and Number:
Japanese Patent JP3692507
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To predict the residual settlement and residual horizontal deformation of the ground where liquefaction phenomenon is caused by earthquake.
SOLUTION: The earth in situ is sampled from the ground (stratums B-D) to form specimens as element test layers. A stratum whose characteristics are well known may be substituted by a numerical model (stratum A). Input conditions are set, and a vertical stress, horizontal stress, and initial shearing force corresponding to the upper load the stratum of each depth of that point is worked to the respective stratums, whereby the stress state of the earth before the occurrence of earthquake is reproduced. A shearing displacement and moving quantity of pore water by earthquake are given to the specimens, and the shearing stress and generation quantity of pore water pressure as the response are obtained. In the element test execution stratum, the displacement and moving quantity of pore water calculated in the stratum element are actually given to each element to measure the restoring force and pore water pressure. This step is successively repeated, whereby liquefaction phenomenon can be simulated.
Inventors:
Kazama, Motoki
Sento, Noriaki
Yamaguchi, Akira
Sento, Noriaki
Yamaguchi, Akira
Application Number:
JP2002000079474
Publication Date:
July 01, 2005
Filing Date:
March 20, 2002
Export Citation:
Assignee:
TOHOKU TECHNO ARCH CO LTD
International Classes:
E02D1/00; E02D27/34; G01H17/00; G01M7/00; G01M99/00; G01N3/00; G01N29/12; G01N29/22; G01N29/44; G01N33/24; G06F17/50; (IPC1-7): G01N3/00; G01H17/00; G01M7/00; G01M19/00; G01N29/12; G01N33/24; G06F17/50
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