采矿与安全工程学报2012，Vol.29Issue(1)：111-117,7.
基于CFD模拟的邻近层穿层钻孔瓦斯抽采优化设计
Gas Extraction Optimum Design of Layer-Through Borehole in Adjacent Seam Based on CFD Simulation
摘要
Abstract
Taking the fully mechanized caving face 15101 in Xindadi coal mine, Shanxi province as the research object, we have studied the strata movement rules of the face and the characteristics of pressure-relief gas drainage in adjacent seam, determined the arrangement principle of layer-through boreholes in face 15101. In addition, 6 optimization schemes were proposed, and the associated numerical simulations were conducted by using FLUENT. According to simulation results, the optimal arrangement parameters of layer-through boreholes in adjacent seam were determined finally. The results show that the vertical height of final hole to the floor of 15* coal seam is 50 m, and the horizontal distance of final hole is 20 m deep into the face. After the parameter optimization, the gas extraction of adjacent seam in face 15101 has obtained a favorable effect, and the average gas extraction quantity is up to 51.8 m3/min.关键词
穿层钻孔/瓦斯抽采/CFD模拟/绿色开采Key words
layer-through borehole/ gas extraction/ CFD simulation/ green mining分类
矿业与冶金引用本文复制引用
秦伟,许家林,吴仁伦,胡国忠,王中伟,田根万..基于CFD模拟的邻近层穿层钻孔瓦斯抽采优化设计[J].采矿与安全工程学报,2012,29(1):111-117,7.基金项目
国家自然科学基金重点项目(50834005) （50834005）
煤炭资源与安全开采国家重点实验室自主研究课题项目(SKLCRSM08X05) （SKLCRSM08X05）
