【摘要】 某矿山计划将部分地面生产流程转移至地下硐室中进行,通过工程类比法确定矿体围岩为Ⅲ~Ⅳ类岩体,围岩稳定性较差,严重威胁地下硐室群的稳定性。锚杆支护作为地下工程中最重要的支护手段之一,被应用于各种围岩与不利地质环境中,文章结合某矿山可行性研究,利用FLAC3D软件,以围岩变形、塑性区范围和锚杆所受最大应力为参考指标,模拟不同间距的锚杆支护系统对硐室群围岩稳定性的影响,通过综合分析确定了最佳的锚杆间距范围,对矿山后续设计及施工具非常重要的实用意义。更多还原

【Abstract】 A certain mining plans to transfer the part of the ground producing-process to the underground cavern.They define the host rocks of the ore bodies as III~IV kind of rock mass with the poorer stability of wall rock severely threatening the stability of underground cavern group by the method of engineering analogy.Anchor supporting as one of the most important supporting measure in underground engineering is applied in all kinds of surrounding rock and adverse geological environment.This paper takes surrounding rock deformation,plastic zone and the anchor for the maximum stress as reference indicator and simulate the impact of bolting system with different space on the stability of cavern group’s host rocks by FLAC3 Dsoftware combined with the feasible study of certain a mining,and ultimately obtain the best bolt space range through synthetic analysis.It’s of practical significance for the mining’s subsequent design and construction.更多还原