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土工离心模型试验能够真实模拟重力场的存在,再现工程实际应力状态,被广大学者公认是目前进行岩土工程技术研究中最先进、最有效的试验方法,基坑工程离心模型试验是土工离心模型试验的重要组成部分。通过总结土工离心模型试验概念原理及优势,展现近年离心模型试验在岩土工程各个领域的研究应用情况,介绍离心模型试验研究基坑工程的现状,分析比较基坑工程离心模型试验中地基土制备、复杂工况及开挖方式模拟、支护结构模型制作与安装、试验测量技术选择与布置等关键技术,最后指出基坑工程离心模拟技术尚存在的不足,并展望了未来的发展方向。
Geotechnical centrifuge model test can truly simulate the existence of gravitational field and reproduce the actual state of the engineering. It is recognized by most scholars that it is the most advanced and effective test method in geotechnical engineering research at present. Centrifuge model test of foundation pit engineering is geotechnical centrifuge model An important part of the experiment. By summarizing the concepts, principles and advantages of the geotechnical centrifuge model test, this paper presents the research and application of the centrifugal model test in all fields of geotechnical engineering in recent years, introduces the status quo of the centrifuge model test and study of the foundation pit project, , The simulation of complex conditions and excavation methods, the fabrication and installation of support structure models, the selection and arrangement of test and measurement techniques, etc. Finally, the insufficiency of centrifugal simulation technology for foundation pit engineering is pointed out and the future development direction is also forecasted.