摘要
结合兴安矿四水平新副井井筒修复的工程实践,分析了锚注支护的工程特点。经工程应用表明,注浆可以将松散围岩胶结成一体,锚杆可以加固围岩,锚杆支护与注浆加固共同作用显著提高了围岩的强度和承载能力,有效地控制了围岩变形问题,同时也封堵井壁淋水以免对围岩侵害。
This article combined with the engineering practice of the new auxiliary shaft repair at 4^th level in Xingan Coal Mine, analyzes the engineering characters of bolting and shotereting support technology. The engineering practice show that shotcreting can make loose rocks an intact one, bolt can reinforce rocks, bolt support and grouting strength coordinately can increase the intention and carrying capacity of surrounding reeks obviously, effectively control distortion of surrounding reeks, at same time block the shaft wall water so as not to damage surrounding rock.
出处
《煤炭技术》
CAS
北大核心
2009年第4期138-140,共3页
Coal Technology
关键词
围岩破碎
锚注
井筒修复
工程实践
surrounding rock broken
bolting and shotereting
shaft repair
engineering practice
