Watertightness improvement of the decomposed granite by cement powder grouting

被引：0

作者：

Yamaguchi, Y ^{[1
]}

Nakamura, A ^{[1
]}

Kobayashi, M ^{[1
]}

Onuma, E ^{[1
]}

Hashimoto, T ^{[1
]}

机构：

[1] Minist Construct, Publ Works Res Inst, Tsukuba, Ibaraki, Japan

来源：

PROBLEMATIC SOILS, VOL 1 | 1998年

关键词：

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Decomposed granite grounds are characterized by low critical pressure, and small voids among soil particles. For the purpose of improving the watertightness of decomposed granite grounds, the cement powder grouting method is known as an effective procedure to inject a hydraulic agent into voids among soil particles at low pressures. The agent developed for this purpose is a surface-treated microfine cement particle (called hereinafter surface-treated cement). Id this method, this material is fed with compressed air into the ground to create watertight zones. This paper discusses the water content conditions required for hardening of the surface-treated cements when introduced into the ground using laboratory tests. In addition, the results of a field injection test on a specific dam site show that grouting with surface-treated cements is a method with excellent potential for ensuring the desired watertightness of decomposed granite grounds.

引用

页码：519 / 522

页数：4