膨胀土特性参数对挡土墙设计的实用性分析  

Practicability Analysis of Expanded Soil Characteristic Parameter for Design of Retaining Wall

作　　者：陈鹏飞[1] 

机构地区：[1]中国市政工程西南设计研究院,四川成都610081

出　　处：《城市道桥与防洪》2010年第5期157-159,共3页Urban Roads Bridges & Flood Control

摘　　要：膨胀土因其特有的胀缩特性对构筑物的影响较普通土要大,因此是工程设计中的重点和难点。现有规范对膨胀土的划分标准以及试验参数与挡土墙的联系并不明确,因而影响到挡土墙结构设计的安全性和经济性。该文就此进行了分析并提出建议。The expanded soil affects the structures greater than the normal soil because of its special swell-shrink characteristic.Therefore,it is the gist and difficulty in the engineering design.The present criterion is not defined for the dividing standard of expended soil,and the contact of test parameter with the retaining wall so as to affect the safety and economy of the structural design of retaining wall.The article analyzes it and puts forward the suggestion.

关 键 词：膨胀土 自由膨胀率 膨胀力 

分 类 号：TU443[建筑科学—岩土工程]