大坝心墙插有混凝土防渗墙段的应力与渗透稳定性试验研究

Investigalion of stress and seepage stability at the conjoined section of concrete diaphragm and core of roekfill dam

本文通过模拟试验研究了高坝中混凝土防渗墙直接插入心墙时插入段心墙中的应力与渗流控制性状．内容包括墙顶心墙中的应力应变特性，心墙剪切破坏后沿剪切面和防渗墙与心墙接触面之间渗透破坏的可能性．文中阐述了试验过程，并给出了研究成果．

This paper is mainly about the behaviors of the stress and seepage control in the dam core which is directly inseted by a concrete diaphragm, including the characteristic of stress-strain in the core at the top of diaphragm and the probability of seepage failure along the shear face as well as the interface between the wall and the core after core shear failure of the core. The result shows that there is no concentrated leakage occurred in the shear face of the core at the top of diaphragm. The conjunction of concrete diaphragm with the core is too strong that no contact seepage erosion will take place.