System and method for dynamic disturbance test of large three-dimensional physical model

Abstract

The invention discloses a system and a method for the dynamic disturbance test of a large three-dimensional physical model. The system comprises a pedestal, an anti-deformation prestressed loading frame assembly, a load applying assembly, a model sample preparing and conveying assembly and a hydraulic loading system assembly; and the anti-deformation prestressed loading frame assembly and the model sample preparing and conveying assembly are arranged on the pedestal, the load applying assembly is arranged on the anti-deformation prestressed loading frame assembly, the load applying assembly isconnected with the hydraulic loading system assembly, and the load applying assembly cooperates with the hydraulic loading system assembly to perform multi-face and multi-point cooperatively controlled dynamic disturbance on a model sample. The system and the method have the multi-face and multi-point cooperatively controlled dynamic disturbance ability on the large three-dimensional physical model, and a newly designed frame structure is adopted to effectively control the self-deformation of a test device in the loading process, so the credibility of the test data is improved; and the preparing and conveying assembly for the artificial model is arranged for the first time, so precise detection of the artificial model sample in the preparation stage is met.

Description

technical field [0001] The invention belongs to the technical field of large-scale three-dimensional physical model tests, and in particular relates to a large-scale three-dimensional physical model dynamic disturbance test system and method. Background technique [0002] The large-scale three-dimensional physical model test is based on the similarity theory. By configuring artificial model materials with properties similar to those of engineering rock mass, and carrying out excavation and monitoring tests under different boundary loading conditions, it can effectively reveal the deformation and cracking of rock mass under the influence of human engineering activities. evolution mechanism. [0003] At present, large-scale three-dimensional physical model tests have been widely used. However, as underground engineering construction and resource mining continue to enter the deep, the volume and complexity of deep caverns are also increasing. In scientific research and engineer...

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Problems solved by technology

[0008] Aiming at the problems existing in the prior art, the present invention provides a large-scale three-dimensional physical model dynamic disturbance test system and method, which for the first time has the capability of dynamic disturbance under multi-surface and multi-point cooperative control, and adopts a newly designed prestressed frame structure, which can Effectively control the self-deformation of the test equipment during the loading process to improve the reliability of the test data; for the first time, it is equipped with the preparation and delivery mechanism of the artificial model sample, which effectively separates the preparation area of ​​the artificial model sample from the loading area to meet the requirements of the artificial model sample. Accuracy detection in the preparation stage to avoid the influence of artificial model samples on the test data due to insufficient preparation accuracy

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