Numerical Simulation of Bed Separation Development and Grout Injecting into Separations |
| |
| Authors: | Shou Gen Chen Hua Guo |
| |
| Institution: | (1) Southwest Jiaotong University, Chengdu, China;(2) CSIRO Exploration & Mining, Brisbane, Australia |
| |
| Abstract: | 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. |
| |
| Keywords: | Bed separation Cosserat theory Finite element Subsidence |
| 本文献已被 SpringerLink 等数据库收录！ |
|
