首页 | 本学科首页   官方微博 | 高级检索  
     

复合桩基设计与沉降分析
引用本文:蒋刚,宰金珉,陈国兴,胡庆兴,苏静波. 复合桩基设计与沉降分析[J]. 岩土力学, 2003, 24(3): 405-409
作者姓名:蒋刚  宰金珉  陈国兴  胡庆兴  苏静波
作者单位:南京工业大学土木工程学院; 河海大学 江苏 南京 210009; 江苏 南京 210009; 江苏 南京 210098;
摘    要:介绍了复合桩基的设计理论和步骤,分析了复合桩基的沉降发展过程,用Geddes应力解的分层总和法计算桩群分担荷载所引起的地基沉降,以Boussinesq应力解的分层总和法计算承台下土分担的荷载所引起的地基沉降,将二者之和近似作为复合桩基的沉降。对某住宅楼基础采用复合桩基设计,布桩数约为常规桩基设计的1/3,节约造价近35%。复合桩基最大沉降量较常规桩基设计大,但仍在基础容许沉降范围内。

关 键 词:复合桩基   桩极限承载力   复合桩基沉降过程   Geddes应力解   Boussinesq应力解  
文章编号:1000-7598-(2003)03-0405-05
收稿时间:2002-04-17
修稿时间:2002-04-17

Design of composite pile foundation and settlement calculation
JIANG Gang,ZAI Jin-min,CHEN Guo-xing,HU Qing-xing,SU Jing-bo. Design of composite pile foundation and settlement calculation[J]. Rock and Soil Mechanics, 2003, 24(3): 405-409
Authors:JIANG Gang  ZAI Jin-min  CHEN Guo-xing  HU Qing-xing  SU Jing-bo
Affiliation:College of Civil Engineering, Nanjing University of Technology, Nanjing 210009, China; Hohai University, Nanjing 210098, China
Abstract:The design method of composite pile foundation is introduced. Progress of total settlement of composite pile foundation is analyzed; and the method of settlement calculation is presented. The ground settlement due to the load shared by pile group is calculated with layerwise summation method based on Geddes' stress method; and the ground settlement duo to the load shared by soils under pile cap is calculated with layerwise summation method based on Boussinesq's deformation formula; the summation of two settlement above equals the total settlement of composite pile foundation. The design and settlement calculation methods have been applied to certain building with composite pile foundation; the results show that the pile number is decreased about 1/3, and saved cost 35 %, while the total settlement increased a little.
Keywords:composite pile foundation  progress of settlement of composite pile foundation  ultimate bearing capacity of pile  Geddes' stress method  Boussinesq's stress method
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《岩土力学》浏览原始摘要信息
点击此处可从《岩土力学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号