煤矿安全2012，Vol.43Issue(6)：25-28,4.
大断面沿空煤巷综放回采矿压规律实测分析
The Measurement Analysis of Mining Pressure Laws of Fully Mechanized Caving Mining in Large Cross-section Gob-side Entry
戴大鹏 1刘玉田1
作者信息
- 1. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008
- 折叠
摘要
Abstract
Taking 5105 large cross-section gob-side entry in Tashan coal mine as engineering background,by using the on-site measurement method,the variation relationships between roadway surface displacement,end anchor bolt axial force and the distance to coal face were researched in mining process.The results show that under the common influence of mining face and adjacent lateral residual abutment pressure,the advanced abutment pressure influence range of large cross-section gob-side entry is increased;the convergence amount of roadway sides is much larger than the variation amount of roof and floor in recovery period,the displacement along the gob is larger than the entity coal side displacement.In the mining drastic influence stage,the end anchor bolt axial force fluctuations violently,and the phenomena are completely different with the static pressure roadway.关键词
大断面/沿空煤巷/矿压规律/表面位移/支承压力Key words
large cross-section/roadway along gob/mining pressure law/surface displacement/abutment pressure分类
矿业与冶金引用本文复制引用
戴大鹏,刘玉田..大断面沿空煤巷综放回采矿压规律实测分析[J].煤矿安全,2012,43(6):25-28,4.
