浅埋深薄基岩“三软”地层立井井壁破坏机理及防治技术研究  

Research on Vertical Shaft Wall Failure Mechanism and Control Technology in Shallow Buried Deep Thin Bedrock "Three Soft" Strata

作　　者：尚玉强 张京超[2] 张官禹 范明建[3] SHANG Yu-qiang;ZHANG Jing-chao;ZHANG Guan-yu;FAN Ming-jian(Xinwen Mining Group(Yili)Energy Company,Yining 835000,China;Tiandi Technology Co.,Ltd.,Beijing 100013,China)

机构地区：[1]新矿集团伊犁能源公司工程技术部,新疆伊宁835000 [2]新汶矿业集团(伊犁)能源公司,新疆伊宁835000 [3]天地科技股份有限公司,北京100013

出　　处：《煤炭技术》2020年第7期42-44,共3页Coal Technology

摘　　要：新矿集团伊犁一矿北工广副立井施工,出现井壁混凝土开裂、钢筋鼓出变形,部分混凝土脱落,井底马头门两侧平巷顶部浇筑体出现开裂和剥落现象,并出现大量的水沿井壁流出。对井壁及马头门连接处发生破坏的原因进行综合分析,对破坏范围内巷道围岩强度与围岩结构进行现场测试,提出"高压注浆+高预应力强力锚杆及注浆锚索"相结合的加固方法对破坏立井井壁及附近巷道进行加固,取得了显著效果。Xinwen mine group Yili mine north wide vice shaft construction, concrete cracking, steel bulging deformation of shaft wall, some concrete loss, bottom hole on both sides of the horsehead door entry appears at the top of the casting body cracking and peeling phenomenon, and appear a lot of water flows along the wall. The borehole wall and ingate joint damage to comprehensive analysis of the cause of the damage strength and structure of surrounding rock of roadway surrounding rock within the scope of on-site test, put forward the "high pressure grouting + prestressed high strength bolt and grouting anchor cable" combination of strengthening methods to damage shaft wall, and near the roadway to reinforce, significant results have been achieved.

关 键 词：“三软”地层 立井井壁 破坏机理 治理技术 

分 类 号：TD262[矿业工程—矿井建设]