采矿与安全工程学报2012，Vol.29Issue(6)：827-832,6.
开采布局不合理引发冲击危险的研究
Study on the Rock Burst Risk Caused by the Irrational Layout of the Mining Exploitation
摘要
Abstract
In underground mining, the irrational layout of exploitation is often caused because of the complex geological conditions and production supersedure. Thus, it is easy to cause stress concentration around a variety of coal pillars, and may result in rock burst, which has been threat to the safely of the personnel and mining production. This paper takes the example of mining operation in Section 1, District 14, Layer 17 of the south in Level 4 of one coal mine to study. The study methods in this paper are as follows: 1) According to the timing analysis of microseismic monitoring data for nearly three months, we have summarized the relationship between the trends of time information entropy Qt ,Z and the rock burst events. 2) We carried out numerical simulation of the stress distribution in this region to identify the stress concentration pillar area around which the rock burst risk is high. 3) We analyzed the influencing factors of rock burst in the irrational layout region, including the pillar, stop line and unreasonable mining sequence in the coal seam group. In this paper, the analysis and monitoring data isactually collected, reliable and enough, and the method of the data processing and the use of the parameters Q, and Z values to characterize the burst risk are reasonable. In addition, the model which is used in the numerical simulation is well related to the actual conditions. Thus, the conclusions in the paper are credible and correct, which can be used as a reference to improve the mining layout under the similar conditions.关键词
冲击矿压/开采布局/微震监测/矿震活动Key words
rock burst/ mining layout/ microseismic monitoring/ seismic activity分类
矿业与冶金引用本文复制引用
王毅,曹安业,窦林名,郭晓强,杜斌斌,刘辉,朱亮亮..开采布局不合理引发冲击危险的研究[J].采矿与安全工程学报,2012,29(6):827-832,6.基金项目
国家重点基础研究发展计划(973)项目(2010CB226805) （973）
中央高校基本科研业务费专项资金项目(2010QNA30) （2010QNA30）
煤炭资源与安全开采国家重点实验室研究课题项目(SKLCKSM10X05) （SKLCKSM10X05）
江苏省高校优势学科建设工程项目(PADD) （PADD）
