METHOD FOR EVALUATING COEFFICIENT OF EARTH PRESSURE AT REST OF GROUND INTO WHICH PILE OR SAND COMPACTION PILE IS DRIVEN, AND METHOD FOR EVALUATING COEFFICIENT OF EARTH PRESSURE AT REST OF SAND COMPACTION PILE ITSELF IN GROUND INTO WHICH SAND COMPACTION PILE IS DRIVEN

Japanese Patent JP3952138

B2

PROBLEM TO BE SOLVED: To provide a method for evaluating a coefficient of earth pressure at rest of ground into which a pile or a sand compaction pile is driven, which allows the proper evaluation of an increase in the coefficient of the earth pressure at rest of the ground due to the driving of the pile or the sand compaction pile, and enables the coefficient of the earth pressure at rest to be properly and simply applied to a design.
SOLUTION: In this method, an electric static cone penetration test is carried out at a representative point in an execution area; after the obtainment of cone end resistance before the driving of the pile or the sand compaction pile, a test for obtaining the cone end resistance after the driving is carried out by driving a plurality of test piles or test sand compaction piles; and the coefficient of the earth pressure at rest of sandy ground is calculated for evaluation from test results.

Hideo Hanzawa

JP2001327946A

August 01, 2007

October 25, 2001

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Toa Construction Industry Co., Ltd.

E02D3/08; E02D1/00; E02D1/02; E02D1/08; E02D3/10; G01L5/00; (IPC1-7): E02D3/08; E02D1/08; E02D3/10

JP10183592A
JP11351982A

山本 実 他2名,締固め砂杭工法を用いた緩い砂質地盤の液状化対策の新しい設計方法,土と基礎,地盤工学会,2000年11月,Vol.48No.11,P.17-P.20
三村 衛 他1名,コーン貫入試験による砂質地盤の液状化強度評価,土と基礎,地盤工学会,1999年 9月,Vo.47No.9,P.21-24
半沢英郎,コーン貫入試験を用いた東南アジアでの工事事例,土と基礎,地盤工学会,1999年 9月,Vol.47No.9,P.28-30

Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita

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