坝肩以外溢洪道宽度对拱坝安全影响分析研究

摘要

拱坝大多采用坝顶及坝身泄水孔的形式泄洪,然而由于受到地形地质条件所限,很多拱坝在坝肩开凿岩体形成溢洪道,这样势必会导致坝肩受力不对称,进而影响坝肩稳定。本文基于有限单元法,利用ANSYS软件对拱坝坝肩以外开凿溢洪道对坝体安全影响进行分析研究,为其他的实际工程提供一种理论参考。%Most of arch dams used the crest and the scuppers to discharge the flood;However,due to topographic and geologic conditions,the most spillways always located in the abutment of arch dams,which caused the abutment stress unevenly,and affect its stability.This paper carried out a analysis and research of impact of the spillway excavated in the abutment on the dam safety with ANSYS software,based on the finite element method.It provides a theoretical reference for the project practice.