综采面邻空煤柱漏风微循环现象研究  

Research on air leakage micro-circulation in coal pillar near goaf for comprehensive mechanical mining face

作　　者：朱帅虎 王金宝 

机构地区：[1]冀中能源集团峰峰集团梧桐庄矿,河北邯郸056500 [2]冀中能源集团峰峰集团通防部,河北邯郸056500

出　　处：《河北工程大学学报（自然科学版）》2016年第3期85-88,103,共5页Journal of Hebei University of Engineering:Natural Science Edition

基　　金：国家自然科学基金资助项目(51074168)

摘　　要：针对综采面"采场-邻空煤柱-采空区"间的漏风微循环现象,利用MATLAB中的PDE工具进行二维非线性渗流的数值模拟,同时分析研究漏风微循环现象形成的原因,以及漏风微循环对煤炭自燃的影响。研究表明,"采场-邻空煤柱-采空区"间的漏风微循环可以导致采空区内相对压力和气体成分的周期性变化,即"采空区喘息"现象。As a two dimensional nonlinear transfusion model,the ＂stope- neighboring pillars- goaf＂micro- circulation phenomenon was numerically simulated with PDE tools in MATLAB. The formation of the phenomenon and its influence on coal spontaneous combustion was also studied. The results show that the ＂stope- neighboring pillars- goaf＂micro- circulation causes the periodic variation of relative pressure and gas composition in mining face goaf,which is called ＂goaf gasp＂. The research gives a theoretical significance for large- area fire prevention and extinguishing.

关 键 词：邻空煤柱 漏风微循环 采空区喘息 防灭火 

分 类 号：TD713[矿业工程—矿井通风与安全]