不同错距下极近距离煤层联合开采矿压规律研究  

Study on Mine Pressure Law of Very Contiguous Seams Combined Mining Under Different Offset

作　　者：计平 宋新龙[2] 查文华[2] 

机构地区：[1]华瀛天星集广煤业有限公司,山西灵石031300 [2]安徽理工大学能源与安全学院,安徽淮南232001

出　　处：《中州煤炭》2014年第1期18-20,23,共4页Zhongzhou Coal

摘　　要：为得出不同错距下极近距离煤层联合开采矿压规律,通过对山西灵石某矿9#和10#极近距离煤层联合开采工作面应用常规错距理论和现场矿压观测分析,论证得出在坚硬顶板条件下,下煤层工作面只能布置在上煤层采空区的稳压区,联合开采的最小合理错距为26 m。矿压观测分析表明:在稳压区布置下煤层工作面,上下煤层两工作面压力均有明显减小;若将上下两工作面距离再次拉大,矿压显现改善不是很明显。To obtain the mine pressure law of very contiguous seams combined mining under different offset,according to the combined mining of 9# and 10# very contiguous seam at a coal mine in Lingshi County of Shanxi Province ,by the conventional offsets theory and site analysis of pressure observation, it was pointed out that the lower working face can only be located in stable-pressure range of the a- bove coal seam goaf under hard roof,and the smallest reasonable offset range of the combined mining was 26 m. Pressure observation a- nalysis showed that ：when the lower working face is located in stable-pressure range,the pressure of up and down the seam face are sig- nificantly reduced;if two working face of distance is widened once again,the improvement of strata behavior is not obvious.

关 键 词：极近距离煤层 联合开采 错距确定 矿压观测 

分 类 号：TD323[矿业工程—矿井建设]