超深防渗帷幕降水减压作用研究  

Dewatering Effect Analysis of Super-deep Anti-seepage Drapery Structure

作　　者：杨波[1] 刘国彬[2] 杨光煦 

机构地区：[1]长江勘测规划设计研究院,武汉430010 [2]同济大学地下建筑与工程系,上海200092

出　　处：《建筑结构》2005年第11期79-81,共3页Building Structure

基　　金：国家自然科学基金资助项目(10102015)

摘　　要：采用有限元法分析了武汉阳逻长江大桥南锚碇工程在不同降水深度下防渗帷幕和地连墙的受力特性。计算结果表明,只要选择合适的帷幕材料并控制相应的施工参数,水头差对帷幕影响不大。降水超过一定深度后,效果并不明显,即存在一个临界降水深度和降水影响深度,与帷幕和地连墙的距离及土质有关。The finite element method is used to calculate the bearing characters of the anti-seepage drapery and wall linking ground in one tieback engineering. The results show that the head difference has little influence on the drapery when the suitable material is selected and related construction controlling factors are monitored. The water lowering effect is not evident below a certain depth, which shows that a critical water lowering depth and a critical affected depth are existed, and the two depths are related to the distance between the drapery and the wall linking ground.

关 键 词：超深防渗帷幕 地连墙 降水减压 临界深度 

分 类 号：TU463[建筑科学—结构工程] TV223.43[建筑科学—土工工程]