【摘要】 结合锦屏高拱坝,建立包含坝体和周围岩体的有限元模型,用三维实体单元较精细地模拟了地基和坝体混凝土。在整体有限元模型基础上,对水平层缝的模拟做了简化处理。为了能够定量分析比较水平层缝强度对坝体的影响,取水平层缝混凝土的抗拉强度分别比坝体本体混凝土相应的指标降低5%、10%、15%、20%,并与完整无缝拱坝计算结果进行分析比较。更多还原

【Abstract】 A finite element model involving dam body and surrounding rock mass is built for Jinping high arch dam.3D solid element simulates foundation and dam concrete quite accurately.The simulation on horizontal bedding joint is simplified based on the whole finite element model.In order to make a quantitative analysis and a comparison of the effect of horizontal bedding joint strength on dam body,tensile strength of concrete at such joint is taken to be 5%,10%,15% and 20% less than that of dam concrete respectively,and is compared with the results of calculation on an arch dam without any joint.更多还原