采区溜井严重垮冒原因分析及加固方案研究  

Cause Analysis of Serious Collapse of Mine Pass and Investigation on Its Consolidation

作　　者：季翱[1] 宋卫东[2] 杜翠凤[2] 王永清[3] 兰建强[3] 

机构地区：[1]中国地质大学 [2]北京科技大学 [3]武钢矿业公司程潮铁矿

出　　处：《金属矿山》2007年第2期26-28,61,共4页Metal Mine

基　　金：教育部"新世纪优秀人才支持计划"项目(编号NCET-04-0102)

摘　　要：以程潮铁矿为工程背景,首先论述了严重垮冒采区溜井研究的必要性和重要性。其次,在溜井破坏宏观调查与分析的基础上,总结出断层破碎带的存在和节理裂隙发育、围岩自身的膨胀和流变特性、工程环境差、井筒不支护或支护强度低、管理使用不当和应力集中的共同影响是造成溜井严重垮冒的原因。最后以4304上矿溜井的返修加固工程为实例,论述了混凝土箱型承载圈梁整体加固方案的设计要点,且工程应用效果良好。With Chengchao Iron Mine as the engineering background, the necessity and importance of investigating the serious collapse of mine pass are discussed. Then, based on the macro-survey and analysis of pass failures, it is concluded that the common effect of the existence of fault fractural belt, joint fissure development, self-expansion and rheological behavior of host rock, poor engineering environment, unsupported shaft or low support strength, improper management and usage, and stress concentration is the cause for the serious collapse of mine pass. Finally, with the repair and consolidating engineering of No. 4303 ore pass as the case, the major design points of the integral consolidation by concrete box-type carrying collar beam, whose application in the engineering has achieved good effect.

关 键 词：采区溜井 严重垮冒 加固设计 箱型承载圈梁 

分 类 号：TD521.1[矿业工程—矿山机电]