摘要
目前改善高拱坝坝踵拉应力的措施,主要是坝体体型优化,以及设置诱导底缝。提出在拱坝上游地基内设置垂直缝的构想,重点分析了垂直缝设在不同高程范围和不同缝深对坝体应力和位移的影响。结果表明:设置垂直缝和诱导底缝都能够有效改善坝踵附近应力分布,对拱坝整体稳定影响较小。
Up to the present,the main measures for improving the tensile stress condition at the heel of high arch dam are by means of setting inducing bottom joints and optimizing the configuration of the dam.Now a tentative idea on setting vertical joints in the foundation under dam heel is suggested.The influences of vertical joints set at different elevations with different depths on the stress and displacement variation at dam heel are analyzed as focus.The resut shows that the vertical joints could effectively i...
出处
《湖北水力发电》
2009年第1期12-15,共4页
Hubei Water Power
关键词
小湾拱坝
垂直缝
诱导缝
应力
位移
Xiaowan Arch Dam
vertical joints
inducing joints
stress
displacement
