西安科技大学学报2017，Vol.37Issue(5)：662-667,6.DOI:10.13800/j.cnki.xakjdxxb.2017.0510
水力割缝煤体多场耦合响应规律研究
Coupling response law of multi-field in coal seam after hydraulic slotting
摘要
Abstract
Coal Multi-field coupling model of hydraulic slotting is established to ensure the range of borehole fractures and effective borehole arrangement.Based on Yangliu mine geological condition,numerical simulation is carried out to study the gas flow field evolution,considering the coupling effect of stress field,fracture field and seepage field.The results show that the range of disturbed fractures around the borehole is about 2 m,and the borehole gas pressure curve exists "steep slope" phenomenon.The effective influencing radius of gas drainage is about 4.6 m and the optimal hole spacing is about 7 m,which is consistent with field experiment.Drilling control field has eliminated outburst danger,which has an ideal effect under 30 days' multi-borehole coordination drainage.关键词
瓦斯抽采/水力割缝/扰动裂隙/影响半径/多孔协同Key words
gas drainage/hydraulic slotting/disturbed fractures/influencing radius/multi-borehole coordination分类
矿业与冶金引用本文复制引用
林柏泉,赵洋,刘厅,郑苑楠,孔佳..水力割缝煤体多场耦合响应规律研究[J].西安科技大学学报,2017,37(5):662-667,6.基金项目
国家重点研发计划项目(2016YFC0801402) （2016YFC0801402）
国家自然科学基金(51474211) （51474211）
