Monitoring of over cutting area and lubrication distribution in a large slurry pipe jacking operation

Saeid Khazaei, Hideki Shimada, Takashi Kawai, Junichi Yotsumoto, Kikuo Matsui

研究成果: ジャーナルへの寄稿記事

9 引用 (Scopus)

抄録

Slurry pipe jacking was firmly established as a special method for the non-disruptive construction of the underground pipelines of sewage systems. Pipe jacking, in its traditional form, has occasionally been used for short railways, roads, rivers, and other projects. Basically the system involves the pushing or thrusting of concrete pipes into the ground by a number of jacks. In slurry pipe jacking, during the pushing process, mud slurry and lubricant are injected into the face and the over cutting area that is between the concrete pipes and the surrounding soil. Next, the slurry fills voids and the soil stabilizes due to the created slurry cake around the pipes. Fillings also reduce the jacking force or thrust during operation. When the drivage and pushing processes are finished, a mortar injection into the over cutting area is carried out in order to maintain permanent stability of the surrounding soil and the over cutting area. Successful lubrication around the pipes is extremely important in a large diameter slurry pipe jacking operation. Control of lubrication and gaps between pipes and soil can prevent hazards such as surface settlement and increases in thrust. Also, to find voids around the pipes after the jacking process, in order to inject mortar for permanent stabilizing, an investigation around the pipes is necessary. To meet these aims, this paper is concerned with the utilization of known methods such as the GPR (Ground Penetrating Radar) system and borehole camera to maintain control of the over cutting area and lubricant distribution around the pipes during a site investigation. From this point of view, experiments were carried out during a tunnel construction using one of the largest cases of slurry pipe jacking in Fujisawa city, Japan. The advantages and disadvantages of each system were clarified during the tests.

元の言語英語
ページ(範囲)735-755
ページ数21
ジャーナルGeotechnical and Geological Engineering
24
発行部数3
DOI
出版物ステータス出版済み - 6 1 2006

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pipe jacking
pipes
slurry
Lubrication
pipe
Pipe
Monitoring
monitoring
lubricant
mortar
Concrete pipe
Soils
void
lubricants
soil
thrust
Mortar
Lubricants
distribution
cutting (process)

All Science Journal Classification (ASJC) codes

  • Architecture
  • Geology
  • Soil Science

これを引用

Monitoring of over cutting area and lubrication distribution in a large slurry pipe jacking operation. / Khazaei, Saeid; Shimada, Hideki; Kawai, Takashi; Yotsumoto, Junichi; Matsui, Kikuo.

:: Geotechnical and Geological Engineering, 巻 24, 番号 3, 01.06.2006, p. 735-755.

研究成果: ジャーナルへの寄稿記事

Khazaei, Saeid ; Shimada, Hideki ; Kawai, Takashi ; Yotsumoto, Junichi ; Matsui, Kikuo. / Monitoring of over cutting area and lubrication distribution in a large slurry pipe jacking operation. :: Geotechnical and Geological Engineering. 2006 ; 巻 24, 番号 3. pp. 735-755.
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