CAJ | 학술논문

针对土工动力离心模型试验中模型与原型在动力响应和动力破坏模拟两个不同层次的相似程度。首先分析总结离心模型试验在动力响应模拟、动力破坏模拟两个方面的研究发展现状；然后分析这两种模拟模型中的相似比尺的实现要求、特点和区别；最后，针对抗滑模型桩和地铁模型，分析推导动力离心模型在动力响应模拟和动力破坏模拟中具体的模型理论比尺关系和关键问题，进一步指出目前土工动力离心模型试验研究存在的一些问题和发展方向。分析结果表明，针对模型与原型的相似比尺关系，动力破坏模拟模型的相似条件远比动力响应模拟模型的相似条件要求更为严格，这也是动力破坏模拟模型能够揭示岩土结构原型破坏的根本原因。
침대토공동력리심모형시험중모형여원형재동력향응화동력파배모의량개불동층차적상사정도。수선분석총결리심모형시험재동력향응모의、동력파배모의량개방면적연구발전현상；연후분석저량충모의모형중적상사비척적실현요구、특점화구별；최후，침대항활모형장화지철모형，분석추도동력리심모형재동력향응모의화동력파배모의중구체적모형이론비척관계화관건문제，진일보지출목전토공동력리심모형시험연구존재적일사문제화발전방향。분석결과표명，침대모형여원형적상사비척관계，동력파배모의모형적상사조건원비동력향응모의모형적상사조건요구경위엄격，저야시동력파배모의모형능구게시암토결구원형파배적근본원인。
Focusing on two similar levels of the simulation of dynamic response and dynamic fail-ure in the model and the prototype for geotechnical dynamic centrifuge model tests,this paper an-alyzes and summarizes the research and development status of the simulation of dynamic response and failure in the centrifugal model test.The implementation requirements and differences of a similar scale were analyzed in simulations of the dynamic response and failure.According to the anti-slide pile and tunnel models,the specific model-theoretical scale relationships were deduced, and the key problems of the simulation of dynamic response and failure in the dynamic centrifuge model are discussed in the paper.The existing problems and development direction of the geotech-nical dynamic centrifuge model test are described.The results show that for a similar scale rela-tionship between the model and the prototype,there is a stricter similar scale requirement for the dynamic failure model than for the dynamic response model,which is the fundamental reason that the dynamic failure simulation model can reveal the prototype failure of geotechnical structure.