水利水电技术（中英文）

以广西荣地碾压混凝土重力坝为例,定量研究两岸岩体对重力坝承载能力的影响,建立了河床宽度与坝体高度之比(宽高比)L/H与坝体位移的关系和L/H与建基面抗滑稳定安全系数的关系.计算结果表明,当L/H<3时,两岸岩体对坝体的承载能力影响较大,应按三维有限元分析,从而可获得更准确、经济的结果.

Based on Rongdi RCC Gravity Dam,the effect of rock on bearing capacity of the gravity dam is analyzed quantitatively in this paper.The relationship between width of bed river to height of dam ratio(L/H)and displacement of dam,and the relationship between L/H and factor of safety against sliding are established.The calculation results show that while L/H is less than3,the effect of rock on bearing capacity of the gravity dam is significant.Therefore,it is necessary to introduce three-dimensional FEM for acquiring more accurate and economical results.