极端冰雪灾害条件下三峡船闸边坡安全性分析  

Safety analysis of TGP ship lock under extreme ice and snow hazard

作　　者：徐化伟 赵卫 段国学 

机构地区：[1]长江勘测规划设计研究院枢纽设计处,湖北武汉430010

出　　处：《人民长江》2010年第21期10-13,共4页Yangtze River

基　　金："十一五"科技支撑计划项目(2008BAC47B02)

摘　　要：极端冰雪天气容易诱发边坡工程发生地质灾害。不同类型地质灾害的诱发因素非常复杂,且与极端冰雪灾害的历时过程密切相关。通过分析长江三峡工程双线五级船闸边坡工程的监测数据,建立了考虑温度、降雨及时效等相关因素的边坡稳定性计算模型,并分析了三峡船闸高边坡在极端冰雪灾害期间的安全性。分析结果表明,极端冰雪条件对边坡的支护体系及稳定性影响很小。Extreme ice and snow hazard could induce geological calamity to slope project.The inducing factors for different geological hazards are various and closely related with developing process of ice and snow hazard.Through analyzing the monitoring data of TGP double-way and 5 step ship lock during the extreme ice and snow period in 2008,we established slope stability analysis model considering the factors of temperature,rainfall and time effect and applied the model in the safety analysis of TGP ship lock under the extreme weather condition.The results show that the extreme weather has a slight influence on the stability of slope and the support systems of the ship lock.

关 键 词：高边坡 稳定性 安全监测 极端冰雪灾害 三峡船闸 

分 类 号：U641[交通运输工程—船舶及航道工程]