露井联采下边坡体变形机制的研究  

Study on Slope Deformation Mechanism under Open-pit and Underground United Mining

作　　者：冯少杰[1] 权建源 伏永贵 邱浩然[1] 

机构地区：[1]北方工业大学土木工程学院,北京100144

出　　处：《科学技术与工程》2016年第25期224-228,共5页Science Technology and Engineering

基　　金：2015北京高等学校高水平人才交叉培养"实培计划"北京市大学生毕业设计(论文)项目;国家自然科学基金(41172250);国家十二五科技支撑项目(2012BAK09B06);北京市创新团队提升计划项目(IDHT20140501)资助

摘　　要：在露天和井工同期开采下,因边坡体处于井工开采的影响范围内,两种采动效应互相扰动、互相叠加和互相影响,从而构成了复合叠加的作用,边坡体的变形表现为露天和井工两种采动效应叠加的变形机制。以紫金山金铜矿露井联采实例为工程背景,应用Midas GTS软件建立露井联采作用下边坡体三维分析模型,并采用FLAC3D数值模拟软件对三维模型进行数值分析,通过研究各个开采阶段露天边坡体的水平位移、下沉值及应力值,总结露井联采下边坡体的变形机制。Conditions of open-pit and underground united mining. The open-pit slope is located in the underground mining affected area,two types of mining effect interaction,overlap and interact with each other,thus constitute a composite superimposed effect,The slope rock mass performance for superimposed deformation mechanism of the open-pit mining and the mining effect. An ex-ample of Zijin mountain gold-copper mine open-pit and underground united mining was taken. Midas-GTS software is used to establish the 3D model of the side slope body of open-pit and underground united mining,and the numerical analysis is carried out by using FLAC3 D software. The horizontal displacement,the sinking value and the stress value of the rock mass are studied. The deformation mechanism of the slope under the condition of open-pit and underground united mining is summarized.

关 键 词：露井联采 数值模拟 变形机制 

分 类 号：TD824.7[矿业工程—煤矿开采]