Analysis of Surrounding Rock Control Technology of Fully Mechanized Top Coal Caving Mining Roadway with Narrow Coal Pillar
FAN Huaxiao;Panjiayao Coal Mine,Datong Coal Mine Group Co.,Ltd.;
In order to realize the stability and roadway safety of 5101 auxiliary transportation return air roadway side of the8101 fully mechanized coal working face of top coal caving with great mining height in Tashan Coal Mine,based on the production geological conditions of this roadway,the existing theory of roadway support and technology of surrounding rock control were used.The anchor cable was used to strengthen the support and forepole for 5101 auxiliary transportation return air roadway,the key strata of the basic roof were processed by the hydraulic fracturing method of the roof drilling,and the small coal pillar was strengthened by grouting. The results showed that the surrounding rock control technology adopted in the 5101 auxiliary transportation and return air roadway has achieved good support,which can ensure the stability of the 8 m narrow coal pillar and the safe production in the working face.
【CateGory Index】： TD353