摘要
阐述了云南驰宏锌锗股份有限公司会泽铅锌矿的基本地质条件,对深部围岩进行了RMR分级。通过现场调查,发现深部开采围岩失稳冒落模式有"倒三角"顶板冒落模式、"缓倾斜顶板岩层"冒落模式、"单断层"影响顶板冒落模式、"双断层"耦合响应的顶板冒落模式和"上盘开裂"地应力响应的顶板冒落模式。该成果为建立微震监测系统提供了基本资料,同时为选择合理的采矿方法和地压控制技术措施提供了重要依据。
The basic geological conditions of Huize lead-zinc mine of Yunnan Chihong Zn Ge Co.,LTD.is expounded,RMR classification was graded in deep surrounding rock.Base on on site investigation,the main instability roof falling model of surrounding rock deep mining are inverse triangle roof falling model,slight pitch roof strata falling model,single fault influencing roof falling model,double faults coupling influence roof falling model and hanging wall cracking ground stress influence roof falling model.The results provided the basic data for the establishment of microseism monitoring system,provided the important basis for selecting reasonable mining methods and ground pressure controlling technology measures.
出处
《现代矿业》
CAS
2010年第6期57-59,共3页
Modern Mining
基金
国家"十一五"科技支撑计划(2006BAB02A01)
关键词
深部开采
高应力
RMR分级
围岩失稳
冒落模式
Deep mining
High underground stress
RMR classification
Surrounding rock instability
Roof falling model
