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离心模拟试验是通过离心机的转动创造超重力场,使小比尺模型处于原型应力状态,从而模拟土工构筑物力学特性的一种研究手段。随着工程技术的不断发展和技术难度的逐渐提高,在超重力场中开展模拟实际工况中的特定动作,逐渐成为离心模拟试验中的一个热点问题,而如何在超重力场中实现大荷载力的施加是离心模型试验研究中的一个难点。为解决这一问题,中国水利水电科学研究院基于液压技术,开发了可在超重力场中模拟各种施工动作的试验系统,本文介绍了该系统的工作原理和主要特点,并结合试验案例,证明该系统的实用与可靠性。
Centrifuge simulation test is through the centrifuge rotation to create a super-gravity field, so that the small scale model in the prototype stress state, so as to simulate the mechanical properties of geotechnical structures of a research tool. With the continuous development of engineering technology and the gradual increase of technical difficulty, it is becoming a hot issue in centrifugal simulation experiment to carry out simulation of specific actions in actual working conditions in hypergravity field. However, how to realize large load in super gravity field The application of force is a difficult point in the centrifuge model test. In order to solve this problem, based on the hydraulic technology, China Water Conservancy and Hydropower Research Institute has developed a test system that can simulate various construction actions in a super-gravity field. This paper introduces the working principle and main features of the system. Combined with the test cases, Demonstrate the utility and reliability of the system.