摘要
双排钻孔桩–搅拌桩复合围护结构已经在软土地区基坑工程的应用中取得了良好的效果,对该复合围护结构建立位移计算方法是非常必要的。根据实测资料,某些条件下该复合围护结构的桩顶位移主要由桩身刚体位移造成,经过分析其变形性状与刚性桩相似。根据m法,可以建立该复合围护结构的一种实用计算方法。结合某工程实例对该复合围护结构进行位移计算,并与其他计算方法进行了比较。计算结果表明:该方法是合理的,能够满足工程设计的精度要求。
A new type of retaining structure, composed of double-row bored piles and cement-soil mixing piles, was studied. This retaining structure has been wildly applied in soft clay area, and it＇s necessary to establish the calculation method. Based on the analysis of the monitoring data, the displacement and rotation of the whole structure contributes most to the displacement at the top of pile, the deformation regularity of the composite retaining walls is similar to that of the rigid piles. By means of m-method, the solution model of structural displacement was established. A composite retaining wall in Hangzhou was analyzed by the rigid pile model. Compared with other solution models, the rigid pile model was reasonable, and it could be applied in design.
出处
《岩土工程学报》
EI
CAS
CSCD
北大核心
2006年第B11期1517-1521,共5页
Chinese Journal of Geotechnical Engineering
关键词
双排钻孔桩
搅拌桩
复合围护结构
M法
double-row bored pile
cement-soil mixing pile
composite retaining wall
m-method
