煤矿安全2017，Vol.48Issue(z1)：20-23,31,5.DOI:10.13347/j.cnki.mkaq.2017.S1.005
补连塔煤矿7m大采高综采工作面过上覆集中煤柱动载矿压控制技术
Dynamic Load Ground Pressure Control Technology for Bulianta Coal Mine 7 Meters Large Mining Height Fully Mechanized Coal Face Passing Through Stress-concentrated Coal Pillar
迟国铭 1祁昊1
作者信息
- 1. 神华神东煤炭集团有限责任公司 补连塔煤矿,内蒙古鄂尔多斯017000
- 折叠
摘要
Abstract
To solve the problem of strong ground pressure when shallow buried depth and close distance fully mechanized coal face passes through overlying stress-concentrated coal pillar,taking 22307 large mining height fully mechanized coal face as the research object,we analyze strata behavior characteristics and laws when working face passes through overlying stress-concentrated coal pillar,combining with geological conditions,coal seam occurrence conditions of coal and other similar mines experience and research achievements from scientific research institution,we accordingly propose safety technical measures including reasonable schedule for allocation advancing and maintenance,the use of reasonable mining height,replacing and verifying relief valve,face angle adjusting and strengthening mine pressure observation,which effectively avoids hydraulic support push-down,working face roof caving,roadway rib spalling and the harm of bolts or cables splash hurt due to the strong and long mine pressure when 22307 fully mechanized coal face passes through overlying stress-concentrated coal pillar,and realizes safety mining of working face.关键词
大采高/集中煤柱/动载矿压控制/综采工作面Key words
large mining height/stress-concentrated coal pillar/dynamic load ground pressure control/fully mechanized coal face分类
矿业与冶金引用本文复制引用
迟国铭,祁昊..补连塔煤矿7m大采高综采工作面过上覆集中煤柱动载矿压控制技术[J].煤矿安全,2017,48(z1):20-23,31,5.
