| 按复合桩基机理工作的双垫层复合地基 |
| |
| 引用本文： | 王惠昌,王斌,王琛,钱锦棠,汪定熵.按复合桩基机理工作的双垫层复合地基[J].岩土工程学报,2010(Z2). |
| |
| 作者姓名： | 王惠昌 王斌 王琛 钱锦棠 汪定熵 |
| |
| 作者单位： | 中机工程勘察设计研究院;四川省建筑科学研究院;四川大学水利水电学院; |
| |
| 摘 要： | 针对传统复合地基内由砂石等透水材料构成的褥垫层在黏性土地基中出现的问题,通过设置刚性和柔性两个垫层,改变桩顶与基础之间的连接方式,形成新的双垫层复合地基。在竖向荷载作用下其受力特性与复合桩基相同,可充分发挥复合地基内桩的作用,显著减少基础的沉降;在水平荷载作用下,柔性垫层可保护复合土层内素混凝土桩的安全。双垫层复合地基承载力设计与传统褥垫层复合地基相同,可直接利用载荷试验资料,通过基础荷载与基础下桩和桩间土抗力相平衡的条件来计算复合地基的变形。
|
| 关 键 词： | 地基处理 复合地基 复合桩基 CFG桩 褥垫层 |
Composite subgrade with two cushions working as composite pile foundation |
| |
| WANG Hui-chang,WANG Bin,WANG Chen,QIAN Jin-tang,WANG Ding-shang.Composite subgrade with two cushions working as composite pile foundation[J].Chinese Journal of Geotechnical Engineering,2010(Z2). |
| |
| Authors: | WANG Hui-chang WANG Bin WANG Chen QIAN Jin-tang WANG Ding-shang |
| |
| Affiliation: | WANG Hui-chang1,WANG Bin2,WANG Chen3,QIAN Jin-tang1,WANG Ding-shang1 (1.Zhongji Geotechnical Engineering Investigation & Design Institute,Chengdu 610066,China,2 Sichuan Institute of Building Research,Chengdu 610081,3 College of Hydraulic and Hydroelectric Engineering,Sichuan University,Chengdu 610065,China) |
| |
| Abstract: | A new model of composite subgrade which is composed of rigid and soft cushions between pile top and foundation is proposed to overcome the disadvantage of traditional composite subgrade with sand and gravel cushions in clay foundation.The mechanical behavior of the composite subgrade with two cushions under vertical load is similar to that of the composite pile foundation,and this new kind of subgrade helps to give full play to the bearing capacity of piles in subgrade and also reduce the settlement of foun... |
| |
| Keywords: | ground treatment composite subgrade composite pile foundation CFG pile cushion |
| 本文献已被 CNKI 等数据库收录！ |
|
