Title:
地盤調査装置及び地盤調査方法
Document Type and Number:
Japanese Patent JP6832211
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a ground investigation device capable of largely reducing manhours and cost required for a ground investigation, by continuously executing a liquefaction determination and an evaluation of support performance of the ground by a physical exploration.SOLUTION: A ground investigation device 1 investigates an object ground G for executing a liquefaction determination of the ground and an evaluation of support performance, and comprises: a casing 3 penetrated into the object ground; an exciter 4 for imparting vibration to the casing; a plurality of acceleration detectors 5A and 5B arranged at an interval L on the ground surface G1 of the object ground; an arithmetic operation processing part 82 for calculating a propagation average speed based on a detection signal from the acceleration detectors; and a determination-evaluation part 83 for executing the liquefaction determination of the object ground and the evaluation of the support performance. Here, in the determination-evaluation part, the liquefaction determination is executed from a result of imparting vibration of a condition for generating liquefaction by the exciter, and the support performance is evaluated from the propagation average speed.SELECTED DRAWING: Figure 1
Inventors:
Kazutaka Futagawa
Kim Tetsuho
Kim Tetsuho
Application Number:
JP2017069958A
Publication Date:
February 24, 2021
Filing Date:
March 31, 2017
Export Citation:
Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
E02D1/00; G01V1/00
Domestic Patent References:
| JP2000180561A | ||||
| JP2004225469A | ||||
| JP2004347490A | ||||
| JP2005232715A | ||||
| JP4237712A |
Attorney, Agent or Firm:
Cleo International Law & Patent Office