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Title:
VACUUM CONSOLIDATION METHOD
Document Type and Number:
Japanese Patent JP3855195
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To prevent displacement of peripheral ground due to volumetric shrinkage caused by consolidation settlement of peripheral ground and consolidation, to reduce the cost and to reduce the influence of vibration/noise in ground improvement by vacuum consolidation method.
SOLUTION: In this consolidation method, a part A0 of soft ground to be improved is covered with an air-tight sheet 3, negative pressure is generated between the air-tight sheet 3 and the part A0 of soft ground to be improved by a vacuum pump 5 to improve the soft ground by loading of atmospheric pressure. A vertical member 6 for supply of water is placed in the outer periphery of the improvement object, water is supplied to the outer peripheral part of the improvement object through the vertical member 6 for supply of water, and while the water supply pressure is regulated, the soft ground is improved.


Inventors:
Masataka Taketsuka
Uchi Yuri
Sakiko Shimada
Application Number:
JP2002201390A
Publication Date:
December 06, 2006
Filing Date:
July 10, 2002
Export Citation:
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Assignee:
Shimizu Construction Co., Ltd.
International Classes:
E02D3/10; (IPC1-7): E02D3/10
Domestic Patent References:
JP470410A
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama