卸压钻孔破坏半径影响因素及破坏半径回归分析  

The Influencing Factors of Drillhole Pressure Relief and the Regression Analysis of Destroy Radius

作　　者：兰永伟[1,2] 刘鹏程 李伟[4] 陈学华[5] 路占元[4] 邢文彦[6] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳10819 [2]黑龙江科技学院矿业研究院,黑龙江哈尔滨150027 [3]北京昊华集团股份有限公司大安山煤矿,北京102304 [4]黑龙江科技学院资源与环境工程学院,黑龙江哈尔滨150027 [5]辽宁工程技术大学,辽宁阜新123000 [6]鸡西矿业集团东海矿,黑龙江鸡西158175

出　　处：《煤矿安全》2013年第4期24-26,30,共4页Safety in Coal Mines

基　　金：黑龙江省教育厅科技技术研究资助项目(11553089);黑龙江科技学院引进人才科研启动资助项目(05-35)

摘　　要：为了研究钻孔卸压时相关因素之间的关系,采用RFPA数值模拟软件,分析了不同煤层强度、不同煤层压力、不同孔径对钻孔破坏半径的影响。通过理论分析和回归分析,在煤层强度一定的条件下,破坏半径与煤层压力成指数函数的关系,在煤层压力一定时,破坏半径与煤层强度成反比例函数关系;在煤层压力、煤层强度一定时,破坏半径与钻孔直径成对数函数关系;钻孔破坏半径与煤层压力、煤层强度、钻孔直径间的数值表达式。In order to study the relation of the relevant factors on the drillhole pressure relief,by means of numerical simulation RFPA software,the paper analyzes the influence of different coal seam strength and different coal seam pressures and borehole diameters on the destroy radius of drillhole.Then by theory analysis and regression analysis,the paper draws the exponential function relation between the destroy radius of drilling hole and coal seam pressure in coal steam strength certain conditions,draws the inverse function relation between the destroy radius of drilling hole and the coal steam strength in coal seam pressure certain conditions,draws the logarithmic function relation between the destroy radius of drilling hole and the borehole diameter in coal steam strength certain conditions,draws the borehole destroying radius numerical expression among coal seam pressure,coal steam strength and the borehole diameter.

关 键 词：钻孔卸压 数值模拟 回归分析 钻孔破坏半径 

分 类 号：TD324[矿业工程—矿井建设]