STABILIZATION LIQUID COMPOSITION HAVING HIGH SPECIFIC GRAVITY AND DRILLING METHOD USING STABILIZATION LIQUID

Japanese Patent JP3932377

B2

PROBLEM TO BE SOLVED: To provide a high-performance stabilization liquid composition used for drilling method using a stabilization liquid for drilling of hole or groove so as to enable to perform drilling under severe conditions, e.g. drilling of a hole or a groove under underground water conditions having such high pressurized water head as to naturally spout or drilling of hole or groove to overconsolidated clay ground of diluvium layer or ground having a large flow rate of underground water and construct earth drill pile excellent in long-term disperse stability performance and concrete replacing property and continuous underground wall, etc.
SOLUTION: This high-performance stabilization liquid composition having a high specific gravity is obtained by compounding kibushi-clay and/or kaolin mineral composed of kaolin as clay mineral and has >1 liquid specific gravity. For example, the stabilization liquid is obtained by compounding 1 m3 city water with 40 kg bentonite, 360 kg kibushi-clay, 2 kg CMC and 2 kg dispersing agent.

Koichi Mori
Yasukazu Onishi
Kinji Tsutsui
Kohei Sato
Morishima Yasuto
Shigeru Iijima
Takayuki Hayashi
Noriko Kagimasa

JP2000385484A

June 20, 2007

December 19, 2000

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Fujita Co., Ltd.
Daiichi Kogyo Pharmaceutical Co., Ltd.

C09K8/14; E21B21/00; C09K8/50; C09K8/56; E02D5/18; E02D5/34; (IPC1-7): C09K7/02; E02D5/18; E21B21/00

JP8199159A
JP10219239A
JP657244A
JP6185046A
JP2000328050A
JP1103691A
JP10147775A

Tamako Tsutada
Masato Tsuda

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