【摘要】 本文首次采用边界元法对拱坝设上游底缝的影响规律进行了研究，分析了底缝设在不同高程、底缝的缝深不同以及干缝和湿缝对拱坝应力和变位的影响规律．分析结果表明：设上游底缝是改善拱坝应力状态的一个有效的工程措施．更多还原

【Abstract】 The BEM is adopted to study the effect of upstream bottom joint on the stress distribution of arch dam. The variations of stress and displacement of arch dam with bottom joint at different elevation, of different crack depth, with or without water pressure on the crack face are to be studied. The result of analysis demonstrates that the setting of upstream bottom joint is a suitable measure for improving the stress condition of arch dam.更多还原