钢筋混凝土井壁与深厚围岩(土)耦合机理的研究  

Study on the coupling mechanism between reinforced concrete shaft lining and thick surrounding rock(soil)

作　　者：吕恒林[1] 崔广心[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《煤炭学报》2001年第5期501-506,共6页Journal of China Coal Society

基　　金：国家自然科学基金项目 ( 5 97740 0 4) ;中国矿业大学科技基金资助项目

摘　　要：在钢筋混凝土井壁结构破裂的弹塑性理论基础上 ,利用大型通用结构分析软件ANSYS进行了深厚表土中井壁结构的弹塑性数值模拟计算 ,得到井壁破裂的过程、井壁内部应力应变的动态变化规律 ,探讨了井壁结构与深厚围岩 (土 )耦合作用机理 ,为深厚表土层中井壁破裂的防治提供了理论依据 .Based on the elasto plasticity theory of reinforced concrete shaft lining structure fracture,the numerical analyses of shaft lining structure in thick alluvium are carried out by using the large current structure analysis software ANSYS. The cracking process and changing law of stress and strain inside the shaft lining are obtained. The coupling mechanism between reinforced concrete shaft lining and thick surrounding rock(soil) is explored, which provides theoretical foundation for the preventing and curing techniques of shaft lining fracture.

关 键 词：钢筋混凝土 井壁 围岩 耦合机理 弹性 塑性 应力 应变 本构模型 

分 类 号：TD352.3[矿业工程—矿井建设] TD265.32