孔隙型含水基岩段竖井井壁厚度拟订设计研究  

Research on the preliminary thickness design of shaft lining in porous rock aquifer

作　　者：周晓敏[1] 陈建华[2] 罗晓青[1] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京华宇工程有限公司,北京100120

出　　处：《煤炭学报》2009年第9期1174-1178,共5页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(50808016)

摘　　要：从孔隙型含水基岩段井壁设计的实际出发,首先在考虑地下水渗流对围岩和井壁的受力有影响的前提下,引入了无限体中圆形硐室衬砌的弹性平面应变力学模型.为了合理应用,研究了该力学模型的适用条件.其次推导了新的考虑地下水作用和围岩相互作用的井壁设计公式,初步研讨了地下水压和有效应力、衬砌和地层剪切模量、衬砌尺寸等因素对井壁受力、厚度设计的影响.最后通过实例验证了该公式的适用性.Based on the practical problem on thickness design of shaft lining in porous rock aquifer ground, firstly, the plane strain model of cylinder lined in infinite porous rock was introduced considering the influence of underground water seepage, then the relevant condition was studied carefully in order to make good use of it. Secondly, the newly thickness design formula of shaft lining was derived considering the seepage action and mutual actions among the surround rock, water and lining. Influence on thickness design caused by water pressure, effective stress of ground, shear modulus of elastic rock and concrete, dimension of lining was discussed basically. Finally, an example of shaft lining design in deep aquifer was verified with the newly formula.

关 键 词：孔隙型基岩含水层 井壁厚度设计 水压 抗渗混凝土 

分 类 号：TD262.11[矿业工程—矿井建设]