煤炭与化工2018，Vol.41Issue(4)：1-4,4.DOI:10.19286/j.cnki.cci.2018.04.001
基于FLAC的大断面软煤巷道支护参数优化
Optimization of support parameters for large section oft roadway based on FLAC
摘要
Abstract
In order to solve the problem of supporting large section soft rock roadway in the 4310 working face of haozhuang Mine,it was found that the joint fissure in the roof rock formation was developed by the drilling peephole, with large area. Based on the reinforcement arch theory, it was proposed that the large section roadway of 4310 working face dopted the extended anchor bolt and the anchor support system, and the shotcrete was closed. The numerical results howed that the optimal parameters of the bolt were 1 000 mm, the row distance was 900 mm and the diameter of the bolt as 22 mm. Through the observation of the surface displacement of the roadway, the diameter of the bolt was measured by he FLAC numerical simulation. The deformation of the surrounding rock of the roadway was well controlled.关键词
大断面/参数优化/钻孔窥视/数值模拟Key words
large section/parameter optimization/drilling peep method/numerical simulation分类
矿业与冶金引用本文复制引用
郑超,杨峰峰,张巨峰,余岚..基于FLAC的大断面软煤巷道支护参数优化[J].煤炭与化工,2018,41(4):1-4,4.基金项目
陇东学院青年科技创新项目资助(XYZK1611) （XYZK1611）
