混凝土芯砂石桩复合地基固结解析解及性状分析  

Analytical solution and analysis for consolidation of the concrete-cored sand-gravel columns composite foundation

作　　者：杨燕伟 

机构地区：[1]中铁四院集团西南勘察设计有限公司,云南昆明650200

出　　处：《山西建筑》2017年第12期56-58,共3页Shanxi Architecture

摘　　要：通过计算,得到了混凝土芯砂石桩复合地基固结计算的解析解,并根据解析解对复合地基的固结性状进行了分析,结果表明:砂石桩桩体长细比越大,地基固结速率越小;随芯桩直径增大固结速率先增大后减小。Through calculation, the paper obtains the analytic solution of the concrete-cored sand-gravel pile composite foundation consolidation calculation. According the analytic solution, it analyzes the composite foundation consolidation behavior. Results show that： the greater of the sand-gravel pile length-slender ratio, the smaller of the foundation consolidation ratio; as the cored pile diameter increasing, the consolidation ra-tio will firstly increase and then reduce.

关 键 词：复合地基 混凝土芯砂石桩 固结性状 解析解 

分 类 号：TU473[建筑科学—结构工程]