北京科技大学学报2009，Vol.31Issue(6)：667-673,7.
无底柱分段崩落法开采顶板围岩崩落机理
Mechanism of capping rock collapse by no-pillar sublevel caving
摘要
Abstract
Chengchao Iron Mine of Wuhan Iron and Steel Corporation was taken as the engineering background. Drilling monitor and similar material model test were used to study the regular and mechanism of capping rock collapse during orebody caving. Firstly, based on the condition of orebody occurrence, strata's structure and mining process, two drill-holes were designed to monitor the process of capping rock collapse. Secondly, based on the similar model theory, according to sections and geometry sizes a similar material model was built to study the characters of strain, displacement and deformation through the data collection methods of pressure cells, percent meters and photogrammetry. The collusions reveal the elementary mechanism of capping rock collapse and the rules of ground subsidence during the caving process by non-pillar sublevel caving.关键词
围岩/崩落开采法/无底柱分段崩落法/钻孔监测Key words
capping rock/ caving/ non-pillar sublevel caving/ drill-hole monitoring分类
矿山工程引用本文复制引用
杜翠凤,杜建华,郭廖武,唐国友..无底柱分段崩落法开采顶板围岩崩落机理[J].北京科技大学学报,2009,31(6):667-673,7.基金项目
国家"十一五"科技支撑重大计划资助项目(No.2006BAB02A02) （No.2006BAB02A02）
