摘要
针对重力坝坝基存在缓倾角软弱夹层的深层抗滑稳定问题,利用刚体极限平衡法分析软弱夹层的埋深、位置及倾角对深层抗滑稳定安全系数之间的影响规律。以苏阿皮蒂水利枢纽为例,根据《混凝土重力坝设计规范》,采用“等安全系数法”进行深层抗滑稳定计算,并提出在坝址处设置混凝土深齿槽,切断软弱夹层,以提高坝基的深层抗滑稳定性。结果表明,坝基经加固后的抗滑稳定安全系数满足规范要求。
In view of the problem of deep anti-sliding stability of the gravity dam foundation with weak interlayer,the influences of buried depth,location and inclination of the weak interlayer on the safety factor of deep anti-sliding stability of dam are analyzed by rigid body limit equilibrium method.Taking Souapiti Hydro Project as an example,the deep anti-sliding stability of Souapiti Gravity Dam is calculated by the“Equal safety factor”method based on the Code for Design of Concrete Gravity Dams,and it is proposed to set the deep concrete keys at dam site to cut the weak interlayer and improve the deep anti-sliding stability of dam foundation.The results show that the safety factor of anti-sliding stability of dam foundation after reinforcement can meet the requirements of the Code.
作者
姚帅强
王美斋
巴海涛
YAO Shuaiqiang;WANG Meizhai;BA Haitao(Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,Henan,China)
出处
《水力发电》
北大核心
2020年第1期27-31,共5页
Water Power
关键词
深层抗滑稳定
软弱夹层
刚体极限平衡
混凝土齿槽
苏阿皮蒂水利枢纽
deep anti-sliding stability
weak interlayer
rigid body limit equilibrium method
concrete key
Souapiti Hydro Project
