| 摘要: |
| 用有限元模拟拱坝坝体、非连续接触单元模拟坝肩，计算了在设计地震荷载作用下小湾拱坝坝肩残余位移和坝体应力。以拉应力达到坝体混凝土抗拉强度为控制标准，得出坝肩岩体的动力稳定安全系数。计算结果表明，小湾拱坝坝肩仍具有一定的安全度。 |
| 关键词: 坝肩 地震残余位移 有限元 应力 安全系数 小湾拱坝 |
| DOI： |
| 分类号:TV642.4 |
| 基金项目: |
|
| Effects of seismic residual deformation of abutment rock on safety of Xiaowan arch dam |
|
CUI Yu zhu,ZHOU Yuan de,ZHANG Chu han,JIN Feng
|
| Abstract: |
| By use of finite elements to model the dam body and of discontinuous contact elements to model the abutment, the abutment residual deformation and dam stress of Xiaowan arch dam under the design seismic load are calculated. The dynamic safety factor of the abutment rock is obtained with the critical condition of tensile stress reaching the tensile strength of the dam concrete. Calculation results show that the abutment of Xiaowan arch dam is safe. |
| Key words: abutment,seismic residual deformation,finite element,discontinuous contact element,stress,safety factor,Xiaowan arch dam, |
