【摘要】 介绍了对数螺旋线的相关知识,及其在自然界中尤其是在水利工程中的运用。在分析对数螺旋型拱坝的基础上,给出黄河拉西瓦对数螺旋双曲拱坝体型优化的实例,结果表明:拱圈线型采用对数螺旋线型的坝体较其他二次曲线(单心圆、多心圆、抛物线、椭圆、双曲线)的拱坝在节省工程量,改善坝体应力分布及坝肩稳定性等方面都有较大的优势与潜力。更多还原

【Abstract】 Logarithmic spiral line has been used more and more in practice,this paper give a general introduction of logarithmic spiral line.The logarithmic spiral curved arch dam is a new dam type,the result of configuration optimization of Laxiwa arch dam shows that,the logarithmic spiral double curved arch dam is superior to other dam types in dam stress distribution,abutment stability and anti-seismic property etc.更多还原