近距离煤层群同采工作面合理错距研究

Rational Malposition Research of Simultaneous Mining Working Faces in Close Distance Seam Group

摘要: 为确定极近距离煤层群同采工作面的合理错距,运用理论分析、数值模拟相结合的方法得出两工作面错距在40～45 m时,下位工作面既能避开上工作面超前支承压力的影响又能有效维护顶板的完整性。并通过对下位煤层工作面超前支承压力的观测分析进行了验证。
- 近距离煤层群 /
- 同采 /
- 错距 /
- 支承压力
Abstract: In order to determine rational malposition of simultaneous mining working face in close distance seam group,using theoretical analysis combined with numerical simulation,it is obtained that the lower working face not only can avoid the influence of the abutment pressure of the upper working face,but also maintain the integrity of the roof effectively when the malposition should be 40~45 m,which is verified by the observation of advancing abutment pressure under working face.
- close distance seam group /
- simultaneous mining /
- malposition /
- abutment pressure

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