沿空留巷巷旁风力充填试验  

Pneumatic Stowing Trial Along Goaf Side of Reusable Gate

作　　者：马鲁闽[1] 张国兴 钟亚平 

机构地区：[1]煤炭科学研究总院北京开采所 [2]开滦矿务局科研所 [3]开滦矿务局唐山矿

出　　处：《煤炭科学技术》1989年第4期2-6,共5页Coal Science and Technology

摘　　要：作者介绍了风力充填沿空留巷工艺及收到的效果.The Pneumatic stowing trial along a goaf side of a reusable gate——a tail gate of №. 7254 Coalface in Tangshan Coal Mine was conducted by a joint coorperation between Beijing Research Institute of Coal Mining of CCMRI, the Science and Research Institute of Kailuan Coal Mine Administration Bureau, and Tangshan Coal Mine. The trial results shown that it has obtained good results and benefits. 1. The monitoring and measuring restlts of the mine pressure shown that the mining effects were basically stable beyond a distance of 100 m of the coalface. From a loading to retarding of the stowing zone, the convergence rate of the gate cross-section at a point beyond a distance of 112 m of the coalface was 16.89% and the compression rate of the stowing zone was 4 to 5%. Both were met the requirements. 2. The Stewing zone had a good function of roof breaking. During the period of the trial, the function of roof breaking by the stowing zone was monitored and measured. After an operation of prop recovery, most of the immediate roof would fall down. Only a few of the roof would remain in place and would fall down within 24h. 3. The stowing zone was good in sealing. An ventilation leakage of the stowing zone beyond the coalface was measured. The results shown that the ventilation leakage rate per 100 m of the stowing zone averaged 1.5%.

关 键 词：留巷 巷旁充填 风力充填 采煤 

分 类 号：TD823.7[矿业工程—煤矿开采]