Title:
METHOD AND DEVICE FOR TESTING LIQUEFACTION AND DYNAMIC PROPERTY OF GROUND IN SITU BY UTILIZING BOREHOLE
Document Type and Number:
Japanese Patent JP3803922
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and a device for testing the liquefaction and dynamic properties of ground in situ by utilizing a borehole, which can provide dynamic deformation properties with respect to a repeated load on a soil layer in an arbitrary position in the ground by using the simple method.
SOLUTION: The repeated load is imposed on a test object soil layer of a hole wall of the borehole 100 which is provided in the ground, so that displacement of the hole wall can be measured. In particular, this method and this device are characterized in that the repeated load is imposed alternately on a plurality of areas J1 and J3 in the direction of a hole axis, so that a shear force in a direction crossing the hole axis can be made to act on an intermediate soil layer J2 in an alternately repeated manner. Additionally, a static load is imposed on the soil layer J2 in which a repeat test is performed, so that strength can be measured.
Inventors:
Kazuo Masuda
Application Number:
JP2002208958A
Publication Date:
August 02, 2006
Filing Date:
July 17, 2002
Export Citation:
Assignee:
Masuda Giken Co., Ltd.
International Classes:
E02D1/00; G01D21/00; G01N3/34; (IPC1-7): E02D1/00; G01D21/00; G01N3/34
Domestic Patent References:
| JP1268913A | ||||
| JP2015632U | ||||
| JP5093416A |
Attorney, Agent or Firm:
Hiroyasu Kanai
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