【摘要】 针对南水北调中线穿黄工程输水盾构隧道的特点，建立了不连续介质力学的界面应力元模型．分析中，对双层混凝土衬砌进行了精细模拟，考虑了衬砌结构与土体的相互作用．理论分析和数值计算结果表明，本文建立的计算模型精度高，适用性强，能够较好地仿真各种缝面的不连续变形特征．更多还原

【Abstract】 In this paper,the interface stress element model for discontinuous media is established in accordance with the characteristics of shield tunnel for transporting water through Yellow River in the project of diverting water from the South to the North.A careful imitation of two layer reinforced concrete liner tube is made and the interaction between the liner and the soil is taken into consideration.Theoretical analysis and numerical results show that the model,being precise,adaptable and especially good at imitating the discontinuous deformation of various cracks,has a wide range of application.更多还原