Experimental and Numerical Investigations of Ground Deformation Using Chemical Grouting for Pipeline Foundation

Hideki Shimada, Yanlong Chen, Koichi Araki, Takashi Sasaoka, Kikuo Matsui

研究成果: ジャーナルへの寄稿学術誌査読

5 被引用数 (Scopus)


Based on experimental and numerical investigations, the present paper focuses on under ground scope (UGS) chemical grouting method that can actually improve the pipeline surrounding foundation to solve pipeline saggy damage. According to the experimental results, a solution-type injection material could make lager soil deformation, using less total slurry amount than suspension-type injection material. Therefore, a suspension-type injection material with shorter gel time is more suitable for the UGS method, making it more effective to reinforce the pipeline foundation and restore pipelines. The results of some patterns of injection tests revealed relationship between the behavior of the grouting material and the deformation of the soil. It is found that the material can be injected into a foundation by fracture grouting if the permeation coefficient is lower than 1.00 × 10 -3 mm/s. The situation was analyzed by using 2-D finite element method analysis software Phase2, and the analysis result proposes that the real data and simulation data are nearly the same in impermeable soil. Furthermore, even if the construction object is permeable soil, it can also be become impermeable soil by two phases grouting: soil improvement grouting and restoration grouting.

ジャーナルGeotechnical and Geological Engineering
出版ステータス出版済み - 4月 1 2012

All Science Journal Classification (ASJC) codes

  • 建築
  • 地盤工学および土木地質学
  • 土壌科学
  • 地質学


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