【摘要】 水工隧洞堵头在工程中的作用极其重要,结合紫坪铺2号导流洞堵头情况,分别用常规法和三维有限元法计算其整体抗滑安全系数,并讨论两种方法计算结果的差异,同时,还用有限元法研究了水库蓄水后堵头及附近围岩的变形分布规律,优化了混凝土堵头的长度。更多还原

【Abstract】 Tunnel plug plays a very important role in hydropower project . The over-all stability against sliding of the 2# diversion tunnel of Zipingpu project is calculated with traditional method and three-dimensional finite element method (FEM) , and the differences between the two methods are discussed . At the same time , the deformation distribution of plug and the surrounding rock is investigated after the reservoir water storage and the length of concrete plug is optimized .更多还原