煤矿底板软硬相间岩层突水的流固耦合分析  

Fluid-solid Coupling Analysis of Water Inrush in Mine Floor of Soft and Hard Interbedded Rocks

作　　者：胡峰华[1] 鞠远江[1] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008

出　　处：《煤矿安全》2011年第6期15-18,共4页Safety in Coal Mines

基　　金：国家重点基础研究发展计划(973计划)资助项目(2007CB209400);国家自然科学基金资助项目(40702054);教育部博士学科点基金资助项目(20070290528)

摘　　要：叙述煤矿底板软硬相间岩层开采过程中的裂隙发育规律,并分析底板对承压水隔水能力,及在煤层开采过程中底板突水通道变化的规律。运用FLAC3D数值模拟软件中的流固耦合模块,模拟开采过程中底板塑性区、底板压力变化以及动态开采中水流矢量分布。结果表明,随着开采工作面的推进,承压水向采空区渗入在前方煤壁处发生突水,从而为煤矿底板突水的防治提供理论依据。Narrate the regulation of the fracture in the soft and hard interbedded rocks in the mining process, analysis the water - insulating capability of floor against confined water and the variation of water inrush channel in the mining process. Make use of the fluid - solid coupling module of FLAC3D numerical simulation software, to simulate the plastic zone in the floor, the variation of pressure in the floor and the distribution of flow vector in the mining process. The results show that , with the promote of mining face, the water inrush occurring at the front coal wall. As a result, it provide a theoretical basis of the prevention and treatment of mine water inrush.

关 键 词：软硬相间岩层 层间裂隙 切层裂隙 流固耦合 FLAC3D 

分 类 号：TD745[矿业工程—矿井通风与安全]