高压水射流破煤防突仿真研究  

High Pressure Water Jet Coal Outburst Prevention Simulation Research

作　　者：蔡毅[1] 谢成雨 

机构地区：[1]北华航天工业学院机电工程学院,河北廊坊065000

出　　处：《煤矿机械》2015年第12期84-87,共4页Coal Mine Machinery

基　　金：国家自然基金项目(51374089)

摘　　要：对高压水射流的结构以及冲击结构进行分析,在此基础上构建水射流的破煤力学模型,运用ANSYS/Ls-Dyna有限元分析技术对高压水射流破煤效果进行动力学分析,得出高压水射流在破碎煤体过程中形成槽孔的结论,由于煤层内部压力的变化使槽孔周围煤体发生破裂,出现了大量的裂隙,增加了煤层的透气性,为瓦斯的释放创造了有利条件。To analyze the structure of high pressure water jet and shock structure. Basising on the structure to construct the water jet breaking coal mechanics model,utilizing ANSYS/Ls-Dyna finite element analysis technique to dynamic analysis of the effect of high pressure water jet coal. It is concluded that high pressure water jet broken coal to form slot in the process. Due to the change of internal pressure of coal seam coal fracture around the slots, emerged a large number of cracks,increased the gas permeability of coal seam, have created favorable conditions for the release of gas.

关 键 词：高压水射流 防突机理 有限元分析 

分 类 号：TD713[矿业工程—矿井通风与安全] TP67[自动化与计算机技术—控制理论与控制工程]