南水北调工程下伏采空区稳定性分析  

Stability Analysis of Goaf Underlying South-to-north Water Transfer Project

作　　者：刘宏江 张彦宾[2] 聂卫平[2] 赵忠明[2] 

机构地区：[1]河南宏基煤业有限公司,助工河南巩义451273 [2]河南理工大学能源学院

出　　处：《有色金属（矿山部分）》2007年第5期27-30,共4页NONFERROUS METALS(Mining Section）

基　　金：河南省科技攻关项目;编号:0424210019

摘　　要：南水北调工程下伏采空区是一种特殊的岩土工程问题,它给采空区上部工程建设带来了特殊的困难与要求,本文结合南水北调工程的特点和其所通过的焦作煤矿开采的基本情况,提出了采空区的稳定性评价方法,分析了上部渠体荷载对采空区的影响,得出了渠体对地基的最大扰动载荷深度;应用ANSYS软件对冯营矿采空区进行了二维弹塑性有限元模拟,根据稳定性评价标准,结合实际判断采空区在渠体荷载作用下的稳定性,得出渠体对采空区的影响造成的移动变形未超过工程建设所要求的标准。Goal has been encountered in the south-to-north water transfer project as a difficult geotechnical problem. The special problems are challenged with engineering construction on the goal because of the complexity of geotechnical characters. The evaluation methods of the stability with goal are put forward with the characteristics of south-to-north water transfer project and the basic situation of Jiaozuo coal ,the influences of goal are analyzed under the channel load, and the maximal disturbed depth of the channel foundation is found; Then the stability of Fengying mining goal is studied with the application of 2-D elastic-plastic ANSYS soft in the paper, the stability of goal is judged by the numerical simulation and evaluation criterion of stability under additional load. The distortion and deformation caused by channel load on the goal are satisfied to the required standard of engineering construction is obtained.

关 键 词：采空区 南水北调工程 渠体 稳定性 

分 类 号：TD325[矿业工程—矿井建设]