Numerical simulation of bed separation development and grout injecting into separations

被引：28
作者：
Chen S.G. [1 ]
Guo H. [2 ]
机构：
[1] Southwest Jiaotong University, Chengdu
[2] CSIRO Exploration and Mining, Brisbane, QLD
来源：
Geotechnical and Geological Engineering | 2008年 / 26卷 / 4期
关键词：
Bed separation; Cosserat theory; Finite element; Subsidence;
D O I：
10.1007/s10706-008-9174-7
中图分类号：
学科分类号：
摘要：
In this paper, the Cosserat theory that has been incorporated into a three dimensional finite element code COSFLOW, is applied to analyze the development of bed separations in the layered overburden and grout injection into the bed separations. The mechanism of bed separation development during the longwall mining is investigated. A parametric study is carried out to investigate the effect of major factors including hard rock grade, panel height and panel weight on bed separation development. Based on the modeling, a conceptual model to describe the development process of bed separation is proposed. The effect of grout injecting into the bed separations on subsidence reduction is also studied and the conclusion agrees well with the common realization. © Springer Science+Business Media B.V. 2008.
引用
收藏
页码：375 / 385
页数：10
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