摘要
对CFG桩和强夯碎石桩构成的多桩型复合地基作用机理进行分析,通过工程实测数据,理论计算和数值模拟对多桩型复合地基的沉降量进行对比,验证数值模型及参数的正确性与合理性,探讨了桩径、桩长、桩间距的合理取值范围,为实际工程中CFG桩和强夯碎石桩构成的多桩型复合地基的优化设计提供参考.
Based on the pactical work of composite pile foundation,we analyzed the CFG pile and daynamic compaction gravel pile in foundation treatment engineering.Through the measured data,the theoretical calculation and numerical simulation for the settlement of composite foundation were analyzed.We verified the correctness and rationality of the numerical model,and discussed the reasonable pile spacing,pile length,and pile diameter value range.Finally,for practical engineering of CFG pile and dynamic compaction gravel pile composite foundation more optimized design to provide a reference.
作者
刘强
阮怀宁
LIU Qiang;RUAN Huaining(College of Civil and Transportation,Hohai University,Nanjing 210098,China)
出处
《河南科学》
2017年第4期611-617,共7页
Henan Science
基金
国家自然科学基金项目(51379065
50539090
41372329)
关键词
CFG桩
强夯碎石桩
复合地基
沉降
优化设计
CFG pile
daynamic compaction gravel pile
composite foundation
settlement
optimization design
