采空区瓦斯渗透影响的综放面瓦斯运移模拟研究  

Modeling and Research About Gas Transport Based on the Influence of High Gas in the Neighboring Coal Seam

作　　者：梁赛江[1] 王同旭[1] 王太茂[1] 杨英明[1] 

机构地区：[1]山东科技大学资源与环境工程学院,山东青岛266590

出　　处：《山东科技大学学报（自然科学版）》2012年第6期15-19,共5页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51004068);长江学者和创新团队发展计划项目

摘　　要：采用UDEC数值模拟软件,结合实验数据,分析了上层煤层采动对相邻煤层之间岩层的影响,得出岩层裂隙发育规律;依据岩层裂隙发育规律和现场监测数据,利用Fluent软件建立模型,分析工作面不同推进距离时的瓦斯渗透规律。模拟结果表明:随着采煤工作面的推进,综放面后方未冒落区底板受采动影响破坏深度趋于稳定值,邻近煤层采空区瓦斯的渗透量逐渐增加,对综放面瓦斯运移的影响相应变大。The numerical simulation software UDEC was used to analyze the upper coal mining rock between adjacent coal seams with the experiment data, and bed crack developed rules were obtained. Based on the rock fissures law and the field monitoring data and by using the software Fluent, the model was built to make an analysis of the gas pene-tration law of different face propulsion distanees. The simulation results show that the depth of no caving zone back- plane affected by mining keeps stable with the coal face advancing; as neighboring goaf gas permeation amounts gradually increase,the effect on the gas migration of the fully mechanized caving face becomes larger.

关 键 词：采空区 漏风量 渗透率 瓦斯运移 数值模拟 

分 类 号：X936[环境科学与工程—安全科学]