钢筋混凝土单层井壁破裂的数值模拟研究  

Study on Numerical Simulation of the Fracture of Single Layer Reinforced Concrete Shaft Lining

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：《地下空间》2001年第5期399-406,共8页Underground Space

基　　金：国家自然科学基金资助项目 (597740 0 4 )

摘　　要：建立了钢筋混凝土单层井壁结构破裂的弹塑性理论 ,利用大型通用结构分析软件 ANSYS进行了井壁结构的弹塑性数值模拟计算 ,得到在水平地压、井壁重力以及随时间不断增长的竖直附加力的共同作用下井壁结构内部应力、应变的动态变化过程 ,探讨了深厚表土中钢筋混凝土单层井壁结构破裂的力学机理以及裂缝出现的位置和扩展过程 。The elasto plastic theory of single layer reinforced concrete shaft lining structure fracture in thick alluvium is established. With the large current structure analysis software ANSYS, the elasto plasticity analyses of shaft lining structure are carried out. The changing process of stress and strain inside the shaft lining acted by the horizontal soil and water pressure, gravity and the additional vertical force is obtained. The mechanical mechanism and process of shaft lining fracture, the location and developing process of crack ing are explored, which provide the theory foundation for the preventing and curing techniques of shaft lining fracture.

关 键 词：数值模拟 力学机理 单层井壁 破裂 钢筋混凝土 

分 类 号：TD350.1[矿业工程—矿井建设]