均质土中桩体复合地基沉降的线弹性变分法研究  

The Linear Elastic Variational Research of Pile Composite Foundation Settlement in Homogeneous Soil

作　　者：李振宇[1] 尉博翔 葛忻声[1] 姚志然 邱岗[1] LI Zhenyu YU Boxiang GE Xinsheng YAO Zhiran QIU Gang(College of Architecture and Civil Engineering, Taiyuan University of Technology, Tai yuan 030024, China Beijing Forestry University ,Beijing 100083,China)

机构地区：[1]太原理工大学建筑与土木工程学院,太原030024 [2]北京林业大学,北京100083

出　　处：《太原理工大学学报》2016年第1期27-31,共5页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(50678110);山西省科技创新团队建设计划(2014131019)

摘　　要：以弹性力学理论中的里兹变分法为基础,以幂函数为试探函数,通过相互作用系数的有关理论将桩体复合地基中桩土共同作用的核心问题进行研究,经过一系列理论推导,得出线弹性条件下桩体复合地基的沉降计算公式。通过模型试验与理论计算结果的对比,验证了理论计算式的可行性。In this paper, with the Ritz variational method in the theory of elasticity as the basis, power function as trial function, and the theory of interaction coefficient, the core problem in the pile-soil interaction in pile composite foundation was investigated,and through a series of the- oretical derivation the calculation formula was obtained for settlement in the condition of linear e- lasticity. The comparison between the model test and theoretical calculation results verified the feasibility of the theoretical calculation.

关 键 词：变分法 复合地基 相互作用 线弹性 理论计算式 模型试验 

分 类 号：TU473[建筑科学—结构工程]