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Title:
CONSTRUCTION METHOD OF WATER STOPPING LAND SLIDE PROTECTION WALL
Document Type and Number:
Japanese Patent JP3673977
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To enhance economical efficiency by constructing a land slide protection wall by contacting a pile and a pile with other in a water stop unnecessary depth directional section, and constructing the land slide protection wall by partially superposing cross sections of the pile and the pile on each other in a water stop necessary section.
SOLUTION: In an earth's surface side clay layer composed of the water impermeable ground, excavation is performed still in a diameter of a screw head arranged on the tip of a rotary rod. Cement milk or mortar is delivered from the tip of a pipe arranged inside of the rotary rod, and is mixed with surrounding earth and sand, and a column-rowed land slide protection wall of soil cement or mortar is constructed in a condition where a pile and a pile are contacted with each other. When reaching a water permeable sand layer by penetrating through a clay layer, excavation is performed by expanding an expansible blade having a diameter larger than the screw head. The cement milk or the like is delivered from the tip of a pipe arranged inside the rotary rod, and is mixed with surrounding earth and sand, and the column-rowed land slide protection wall of soil cement or the like is constructed in a condition where cross sections of a pile and a pile are partially superposed on each other.


Inventors:
Miyazawa, Toru
Fujito, Kazuharu
Application Number:
JP1996000119624
Publication Date:
July 20, 2005
Filing Date:
April 17, 1996
Export Citation:
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Assignee:
TAISEI CORP
GROUND SYST KK
International Classes:
E02D19/12; E02D5/14; E02D5/18; E02D5/20; E02D17/04; (IPC1-7): E02D5/18; E02D5/20
Domestic Patent References:
JP47020146B1
JP4203017A
JP7109732A
Attorney, Agent or Firm:
山口 朔生
河西 祐一