摘要
对室内大面积堆载下软弱土地基处理的各种方案进行比较,确定水泥土深层搅拌桩是技术经济、质量保证、施工周期等综合指标最优的地基处理方法。在水泥土搅拌桩复合地基受力机理的基础上,对复合地基的承载力与沉降计算方法、有效桩长的确定、沉降压缩层的最大影响深度进行了探讨,分析了超长水泥土搅拌桩的承载能力问题,以及设计中值得注意的问题。结合工程实例进行了验证。
Comparing with various types of treating method on soft ground under large-scale heaped load,the deep mixed pile is the best treatment method.Based on the mechanism performance of the composite foundation,the bearing capacity,the settlement calculation,the critical length of pile,and the maximum depth of compressing pieces are analyzed. Furthermore,the bearing capacity of super-long deep mixed pile is discussed and the points which should be noriced seriously in the process of designing are presented.At last it is proved with the practical project.
出处
《建筑结构》
CSCD
北大核心
2006年第S1期805-807,共3页
Building Structure
关键词
大面积堆载
软土地基处理
设计方案比选
承载能力
沉降变形
有效桩长
超长桩
large-scale heaped load
soft ground treatment
comparison and determination of designing scheme
bearing capacity
settlement deformation
critical length of pile
super-long deep mixed pile
