摘要
在抗剪断理论的基础上采用非线性有限元分析方法,对某水电站导流隧洞堵头进行了三维有限元计算,并对堵头结构特征位置的应力、变形以及堵头整体的抗剪断安全系数等方面展开了深入分析。结果表明,25 m长度堵头部分可以满足初期封堵需要,45 m长度可以满足后期水库蓄水和封堵需要,分段封堵分期挡水方案是可行的。
The stability of the diversion tunnel plug is important. The diversion tunnel plug of a hydropower station is analysed by the method of 3-D finite element on the basis of shear resistance theory. The stress and deformation of plug and the shear resistance coefficient are analyzed in detail. It has been shown that adopting 25 m-long plug and 45 m-long plug can meet the requirements in initial stage and later stage respectively. Obviously the stepped blocking programme is feasible.
出处
《水电能源科学》
2007年第1期94-97,共4页
Water Resources and Power
