岩土工程学报2012，Vol.34Issue(11)：1997-2004,8.
柔性基础下碎石桩加筋复合地基沉降分析方法
Method for analyzing settlement of reinforced-gravel-pile composite ground under flexible foundation
摘要
Abstract
The reinforced-gravel-pile composite ground is a new method for treating soft soil ground.Based on the in-depth studies on the deformation mechanism for reinforced-gravel-pile composite ground under flexible foundation,firstly,according to different relative slips between the gravel piles and the soil around them,the reinforced area can be divided into reinforced-gravel-pile zone,unreinforced-gravel-pile plastic zone and unreinforced-gravel-pile elastic zone.A model for analyzing the settlement of the reinforced-gravel-pile ground under flexible foundation is established.Afterwards,according to different deformation mechanisms in different zones,the corresponding deformation analysis methods for various zones are established.Consequently,a new settlement analysis method for the reinforced-gravel-pile composite ground under flexible foundation is developed.The proposed method can consider the influences of relative slip between pile and soil,and reflect the influences derived from the lateral deformation of gravel piles in the unreinforced-gravel-pile elastic zone.Finally,the proposed method is applied to a practical project.Compared with the other existing methods,the proposed method is more feasible and reasonable.关键词
柔性基础/碎石桩加筋复合地基/桩土相对滑移量/沉降/加筋区/非加筋塑性区/非加筋弹性区Key words
flexible foundation/reinforced-gravel-pile composite ground/relative slip between pile and soil/settlement/reinforced zone/unreinforced plastic zone/unreinforced elastic zone分类
建筑与水利引用本文复制引用
曹文贵,杨泽华..柔性基础下碎石桩加筋复合地基沉降分析方法[J].岩土工程学报,2012,34(11):1997-2004,8.基金项目
国家自然科学基金项目 （）
高等学校博士学科点专项科研基金项目 （）
