我国土工离心模型试验技术发展综述  

STATW OF THE ART REVIEW OF GEOTECHNICAL CENTRIFUGE MODELING TEST IN CHINA

作　　者：冯振[1,2] 殷跃平[3] 

机构地区：[1]国土资源部新构造运动与地质灾害重点实验室,北京100081 [2]中国地质科学院地质力学研究所,北京100081 [3]中国地质调查局,北京100037

出　　处：《工程地质学报》2011年第3期323-331,共9页Journal of Engineering Geology

基　　金："十一五"国家科技支撑课题(2006BAC04B02)

摘　　要：小尺寸物理模型试验是岩土力学与岩土工程研究的重要手段。常规小比尺模型由于其自重产生的应力远低于原型,以及原型材料明显的非线性,因而不能再现原型的特性。解决这一问题的唯一途径是提高模型的自重,使之与原型等效。提高模型的自重应力水平、增大材料自重的最简便的方法就是用离心机。本文在总结回顾大量文献资料的基础上,根据离心模型试验技术的研究深度和应用范围,将我国土工离心模型试验技术的发展历史分为3个阶段,并分别阐述了各阶段土工离心模型试验技术在我国的应用类型及研究状况,介绍了试验设备、试验技术、数据采集等几个方面的发展历程。最后,总结指出了目前离心模型试验技术研究存在的问题,并对今后的研究和工作做了展望。Small-scale physical modeling is an effective method for examining structural and geotechnical problems.However,the stress of a small-scale physical model under gravity is much lower than those in its prototype.In addition,the nonlinearity of the prototype materials is also not easily to be represented in the small-scale physical model.So,a regular small-scale physical model can hardly reproduce the behavior of its prototype.One way to resolve these difficulties is to raise the self-weight of the small-scale physical models up to its prototype.The most convenient tool to increase the self-weight stress is the so-called geotechnical centrifuge.This paper presents a state of the art review of relevant literatures and materials on geotechnical centrifuge technologies in China.It summarizes the geotechnical centrifuge modelling projects that have done up to now in China.According to level of research and applications,the development history of centrifuge technology in China can be divided into three phases.This paper illustrates applications and situation of research by each phase and introduces the development course of instruments,test techniques and data acquisition.in conclusion,some unsolved problems in centrifuge research in China have been pointed out.Outlook on centrifuge research and work is presented.

关 键 词：离心模型试验 研究状况 应用 展望 

分 类 号：TU41[建筑科学—岩土工程]