岩土力学2012，Vol.33Issue(5)：1427-1432,6.
沿空留巷巷旁支护体作用机制及工程应用
Mechanisms of roadside support in gob-side entry retaining and its application
摘要
Abstract
The stability control of roadside support body is the key to keep gob-side entry retaining stable. According to the structural mechanics model of gob-side entry retaining overlying strata, the paper analyzes the load and deformation characteristics of roadside support in the three stages and obtains supporting mechanism of roadside support as follows. Roadside support body could support the roof instantly by increasing support resistance in the setting stage, meets the requirement of cutting off a certain height of the roof before a periodic abutment loading at the back of working face, and has a large deformation capacity during overlying strata movement and a high post-strength after stability of overlying strata movement. Based on the above investigations and the geological conditions of panel 24021 in Jiulishan colliery, we analyze the effect of support body width on the performance of a gob-side entry retaining, and determine a rational width of support body in the condition of support parameters and filling materials. Research results are successfully applied to a field practice.关键词
沿空留巷/巷旁充填/变形特征/支护体宽度/FLAC3D数值模拟Key words
gob-side entry retaining/ roadside packing/ deformation characteristics/ support body width/ numerical simulation of FLAC3D分类
矿业与冶金引用本文复制引用
陈勇,柏建彪,朱涛垒,闫帅,赵社会,李学臣..沿空留巷巷旁支护体作用机制及工程应用[J].岩土力学,2012,33(5):1427-1432,6.基金项目
国家自然科学基金项目(No.51174195) （No.51174195）
煤炭资源与安全开采国家重点实验室自主研究课题资助(No.SKLCRSM08X04) （No.SKLCRSM08X04）
全国博士学位论文作者专项资金资助项目(No.200760) （No.200760）
中国矿业大学青年科研基金资助项目(No.2008A002). （No.2008A002）
