Dynamic-static loading variable-scale similar material test and multi-field dynamic monitoring analysis system

Abstract

The invention provides a dynamic-static loading variable-scale similar material test and multi-field dynamic monitoring analysis system, and relates to the technical field of similar material simulation tests. The system comprises a similar simulation test frame, a dynamic-static loading system, a multi-node dynamic internal displacement response monitoring system, a multi-node dynamic surface displacement digital measurement system, a full-domain whole-process internal fracture evolution monitoring system and a multi-node dynamic stress response monitoring system. The multi-field time-varyingmonitoring and analysis of the stope overlying rock structure characteristics and migration law, the rock fracture development degree, the ground surface settlement characteristics, the mine pressure, the mine pressure display, and the like can be realized in a dynamic-static loading variable-scale similar material test; the problems in collection and vectorization processing of multi-field multi-node dynamic data of full-domain and whole-process stress, displacement, fracture and the like in the existing similar material test can be solved; the real-time monitoring and analysis of the internal deformation damage characteristics and a stress evolution law of a rock-soil model under the action of dynamic and static loads are realized; and therefore, the system has important practical research guiding values.

Description

technical field [0001] The invention belongs to the technical field of similar material simulation tests, and in particular relates to a dynamic and static loading variable-scale similar material test and a multi-field dynamic monitoring and analysis system. Background technique [0002] my country's coal resources are widely distributed, not only in the vast plains, hills, and mountainous areas, but also in some cities and villages under buildings (structures), railways, and water bodies (referred to as "three under"). A large number of coal resources are stagnant. In the process of mining resources, "three down" mining overburden subsidence control and mining ecological restoration has become a major demand of the coal industry and the country. [0003] Due to the complex and changeable geological occurrence conditions, accurate prediction of the structural characteristics and migration laws of the overlying rock in the stope, the development degree of rock mass fissures, ...

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Problems solved by technology

[0005] In order to avoid the shortcomings of the above-mentioned prior art, the present invention provides a dynamic and static loading variable-scale similar material test and multi-field dynamic monitoring and analysis system, which solves the problem that the stress and displacement of the entire model cannot be fully monitored in the existing similar material simulation process. Technical Problems of Multi-field Time-varying Monitoring and Analysis

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