Study on Optimization of Gas Drainage Method in Qianjiaying Mine
SUN Xiang-qing1， WANG Fu-sheng2， GUO Li-wen3
1. Jidong Supervision Bureau, Hebei Coal Mine Safety Supervision Bureau, Tangshan 063000, China; 2. North China University of Science and Technology, Tangshan 063009, China; 3. North China Institute of Aerospace Engineering, Langfang 065000, China
Based on the Qianjiaying 5 and 7 coal seam in 2871 mining working face, gas pumping method of 2876E heading face was optimized. Through a series of experiments on test site, then numerical simulation software was used for data analysis and comparison, in order to verify the optimization method of actual effect. Ultimately the mining working face with cross borehole replaced previous flat drilling, high density, multi angle drilling and fast pumping gas replaced the previous low density, single point of drilling and low pumping gas.
孙祥庆，王福生，郭立稳. 钱家营矿瓦斯抽放方法优化研究[J]. 煤炭与化工, 2015, 38(7): 112-114.
SUN Xiang-qing， WANG Fu-sheng， GUO Li-wen. Study on Optimization of Gas Drainage Method in Qianjiaying Mine. CCI, 2015, 38(7): 112-114.
