刚性桩复合地基垫层对桩土应力比影响分析
摘要:从极限平衡理论角度对刚性桩复合地基中垫层作用机理进行分析,提出桩顶垫层厚度、垫层材料内摩擦角等参数对桩土应力分担的控制公式,推导出在已知表面应力情况下考虑桩土共同作用的桩土沉降计算公式,在此基础上提出一种桩土应力比的迭代计算方法。编制程序实现对算例的计算,总结分析计算结果并与实测值进行对比验证。
Abstract:Based on limit equilibrium theory, the effect on pile-soil stress ratio made by cushion thickness on pile and internal friction angle of cushion is analyzed. The calculating formulae of the settlement of pile-soil under foregone pressure is proposed, which account the interaction of pile-soil. Depending on the methods deduced above, the iterative calculating method for pile-soil stress ratio is put forward. A program is written and the samples are calculated. The analyses for results and the comparison with experimental date are presented.
中文标题：
刚性桩复合地基垫层对桩土应力比影响分析
Analysis on the Cushion Design for Rigid Pile Composite Ground
作者：
尚琴琴,战永亮
Shang Qinqin,Zhan Yongliang
作者简介:尚琴琴,1974年生,女,汉族,硕士研究生,工程师,研究方向为地基加固理论。E-mail:sqqunique@126.com
通讯地址：
中国石油大学建筑工程系山东东营 257061
DepartmentofCivilEngineering,ChinaUniversityofPetroleum,DongyingShandong257061China
中图分类号:TU472
出版物：岩土工程技术
收稿日期:2006-11-14
网络出版日期:2021-07-10
关键词:复合地基,沉降计算,桩土应力比,垫层
Key words:composite ground,calculation of settlement,pile-soil stress ratio,cushion
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