岩溶地区桩基承载特性研究分析

由于岩溶的存在,在岩溶地区进行桥梁工程设计与施工,将不可避免遇到岩溶地区桩基承载特性问题。根据大量的研究成果,归纳了目前常用的研究方法和手段,主要包括室内实验室试验、现场静载荷试验、理论分析以及计算机数值模拟等,对岩溶地区桩基承载特性进行了分析和讨论,并对当前的相关规范作了分析评价,最后提出了目前研究存在的问题以及今后发展的方向,为岩溶地区桩基承载特性的进一步研究提供有益帮助。

Study and Analysis of Bearing Behavior of Pile Foundations in Karst District

Because of the cavities in the Karst district,the problem of bearing behavior of pile foundations will be inevitably met in the design and construction of bridges in the district.In this paper,based on a great variety of the research findings,the ways and methods that have been currently used for study of the bearing behavior of the pile foundations in the Karst district are summarized,in which the laboratory tests,static load tests in field,theoretic analysis and computer numerical simulations are included.The bearing behavior of the foundations in the district is analyzed and discussed,the related codes and specifications are also analytically commented and eventually,the problems in the current researches and development trends are pointed out.The study and analysis in the paper provide beneficial help for the further research of the bearing behavior of the foundations.