具有软弱夹层的坝基深层失稳模式的改进  

An Improvement on Model of Anti-sliding Stability for the Deep Dam Foundations with Weak Intercalary Strata

作　　者：钱保国[1] 吴彰敦[2] 

机构地区：[1]江南大学土木工程系,江苏无锡214122 [2]广西大学土木工程学院,广西南宁510004

出　　处：《红水河》2005年第3期42-45,共4页Hongshui River

摘　　要：对重力坝设计规范中坝基深层抗滑稳定计算模型提出改进意见,建议坝基主滑动体与抗力体间界面———第三破裂面倾角选用非直立的坝基深层失稳模式,并导出了新的计算公式,编制了相应的电算程序,计算分析坝基深层抗滑稳定安全度。第三破裂面倾角根据坝基深层抗滑稳定最不利的情况确定。This paper presents the calculation model of simply non-vertical third angle of rupture for stable dam foundations and new calculation formula on the basis of traditional rigid limit balance method. Moreover, the program is established to the purpose of calculating and analyzing the degree of security of the anti-sliding stability of the gravity dam foundations. Regarding with the most destabilization of the gravity dam foundations with weak intercalary strata, it is possible to determine the third angle of rupture for stable dam foundations.

关 键 词：刚体极限平衡法 坝基深层抗滑稳定 软弱夹层 安全度 

分 类 号：TV321[水利工程—水工结构工程] TV554