复合地基理论和技术应用体系形成和发展

Formation and development of composite foundation theory and technology application system

本文对复合地基理论和技术应用体系形成和发展作了简要介绍。首先简要介绍复合地基技术的发展背景和复合地基技术理论框架在中国的形成过程,然后介绍复合地基的荷载传递机理和位移场特性,指出复合地基荷载传递机理和位移场特性是复合地基设计和优化的理论依据。介绍基础刚度对复合地基工作性状的影响,并指出在柔性基础下桩体复合地基设计中不能简单搬用刚性基础下桩体复合地基设计中的设计计算方法和设计参数。简要介绍了复合地基技术应用体系的形成过程,分析了复合地基理论和技术的发展对基础工程学的贡献,最后对复合地基理论和技术的发展作了展望。

This paper briefly describes the formation and development of composite foundation theory and technology application system.Firstly,the development background of composite foundation technology and the fbnnative process of composite foundation technology theory framework in China are briefly introduced.Then this paper introduces the load transfer mechanism and displacement field characteristics of composite foundation,and it is pointed out that the composite foundation load transfer mechanism and displacement field characteristics are the theoretical basis for composite foundation design and optimization.The foundation stiffiiess has an effect on the working properties of composite foundation.In the design of pile composite foundation under flexible foundation,the design calculation method and parameters cannot be simply copied from those of pile composite foundation design under rigid foundation.The formative process of composite foundation technology application system is simply introduced.The contribution of the development of composite foundation theory and technology to foundation engineering is discussed.Finally,the development of composite foundation theory and technology is prospected.