引黄工程高压出水岔管钢筋混凝土衬砌计算

NUMERICAL ANALYSIS ON REINFORCED CONCRETE LINING FOR OUTLET MANIFOLD OF YELLOW RIVER DIVERSION PROJECT

为验证和分析山西省万家寨引黄入晋工程总干一、二级泵站高压出水岔管钢筋混凝土衬砌的合理性，应用三维有限元数值方法，得到了用筋混凝土衬砌内的应力分布规律。在此基础上，提出了对现有的钢筋混凝土衬砌体型优化的方案及相应的配筋率参数，以满足岔管对钢筋混凝土衬砌裂缝限裂宽度及工程长期稳定运行的需要。

In order to verify the feasibility and reasonableness of design for the reinforced concrete lining of outlet manifold of general pump stations of Shanxi Yellow River Diversion Project, 3-D numerical analysis is made based on field investigations. The stress distribution and width of cracks of reinforced concrete lining are obtained. Furthermore, the shape of reinforced concrete and reinforcement ratio of the manifold are suggested to control the width of cracks in concrete and keep stability of the engineering.