Performance of mortar and chemical grout injection into surrounding soil when slurry pipe-jacking method is used

Hideki Shimada, Takashi Sasaoka, Saeid Khazaei, Yasuhiro Yoshida, Kikuo Matsui

研究成果: Contribution to journalArticle査読

19 被引用数 (Scopus)

抄録

Small-diameter shallow tunnels are often being built by using the slurry pipe-jacking method. This system involves the pushing or thrusting of a drivage machine and concrete pipes into the ground. Chemical grout injection into the surrounding soil around the tunnel is carried out after the drivage and pushing processes are finished. The purpose of the chemical grout injection is to maintain permanent stability of the surrounding soil. However, the behavior of the chemical grouting material in the surrounding soil around the tunnel and the amount of optimum injection is not clearly understood. From these points of view, this paper discusses the performance of the chemical grouting material, when it is injected into the surrounding soil around the tunnel, by means of 2-D Eulerian - Lagrangian seepage analysis. Moreover, the effectiveness of the chemical grout injection was evaluated by using the non-linear finite element method. This investigation show when the range of the grouted zone is designed; it is necessary that the relationship between Young's modulus of the soil/grouted zone and the confining stress be taken into consideration in order to establish effective, economical and safe chemical grout injection system. Understanding the performance of the seepage/dispersion behavior of the chemical grout and the characteristics of soil/ grouted zone is also important.

本文言語英語
ページ(範囲)57-77
ページ数21
ジャーナルGeotechnical and Geological Engineering
24
1
DOI
出版ステータス出版済み - 2 2006

All Science Journal Classification (ASJC) codes

  • Architecture
  • Geotechnical Engineering and Engineering Geology
  • Soil Science
  • Geology

フィンガープリント 「Performance of mortar and chemical grout injection into surrounding soil when slurry pipe-jacking method is used」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル