对土坝防渗墙有限元分析时墙体单元划分排数对墙体的影响

在对土坝防渗墙进行有限元计算分析时,墙体单元的划分形式和排数对墙体的应力和应变都会有不同程度的影响。因此,如何合理地确定墙体单元的划分关系到整个工程计算的科学性和正确性。以黄壁庄水库副坝防渗加固所建混凝土防渗墙为例,采用自编的土石坝有限元计算程序,对其典型剖面进行了非线性有限元计算,研究不同的划分形式对墙体位移和应力的影响,以及对坝体安全和稳定的影响,并为类似工程提供参考。

Effect of the Partition and Platoon Number of Concrete Diaphragm Wall in the Nonlinear Finite Element Analysis to the Concrete Diaphragm Wall

In the nonlinear finite element analysis to concrete diaphragm wall of earth-rock dam,the partition and platoon number may have different effect to the stress and strain of the concrete diaphragm wall.So,how to confirm the partition of the concrete diaphragm wall connection the science and preciseness of the whole calculate and analysis.In this paper,we take as an example the case of the concrete diaphragm wall in earth-rock dam of Huangbizhuang reservoir to figure out a property simulation of nonlinear analysis of concrete diaphragm wall in earth-rock dam,and work out a finite element computer program which studies the effects of some main factors on the stress and strain of wall,by performing a nonlinear finite element calculation to some typical segment planes.And can offer reference for other project.