Experimental device for multi-scale instability process of multi-subfault system

Abstract

The invention discloses an experimental device for a multi-scale instability process of a multi-subfault system. The device comprises a loading system, a transverse plate, a fault system, a detectionsystem and a data acquisition monitoring system, the loading system simulates surrounding rock outside the fault system and an elastic energy storage environment outside the fault system; the transverse plate transmits force applied by the loading system to the fault system; the fault system simulates the slippage habit and instability process of the fault under the action of the loading system; the detection system detects the displacement and pressure of the fault system in the deformation process and during instability; the data acquisition monitoring system is used for acquiring displacement signals and pressure signals and monitoring the evolution process of each signal. By adopting the experimental device, the instability process and characteristics of different scales of the fault can be directly observed.

Description

technical field [0001] The invention relates to the technical field of fault instability simulation, in particular to an experimental device for the multi-scale instability process of a multi-sub-fault system. Background technique [0002] The sudden release of stored energy in the Earth's crust drives the destabilizing failure of the fault, which results in an earthquake. Faults in actual nature are usually composed of many sub-faults, and each sub-fault has its own corresponding characteristics and surrounding rocks. Numerous sub-faults and their surrounding rocks constitute the entire fault zone system, and the entire fault zone system has its surrounding surrounding rocks, forming a multi-scale system. The sliding instability of a single slider represents the instability and failure of a single sub-fault, while actual earthquakes are often the instability of multiple sub-faults, and the instability of a single sub-fault corresponds to only a small local event. Therefor...

AI Technical Summary

Problems solved by technology

However, at present, there is no device for testing the entire fault system with multiple sub-faults and their respective surrounding rocks, and it is impossible to realize the multi-scale instability process experiment of multi-sub-fault systems

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