Inflatable strike-slip fault movement simulation device and simulation experiment method

Abstract

The invention relates to an inflatable strike-slip fault movement simulation device. The inflatable strike-slip fault movement simulation device comprises a fixed disc model box and a movement disc model box, wherein soil body models are arranged in the fixed disc model box and the movement disc model box; the fixed disc model box is fixed and the movement disc model box moves relative to the fixed disc model box along the horizontal direction; vertical loading assemblies are arranged on the fixed disc model box and the movement disc model box; vertical pressure is loaded on the fixed disc model box and the movement disc model box by the vertical loading assemblies. A simulation experiment method based on the inflatable strike-slip fault movement simulation device comprises the following steps: step 1: selecting soil body confining pressure to be applied according to a soil body burying depth to be simulated and applying pre-set pressure to the soil body models through the vertical loading assemblies; and step 2: pushing the movement disc model box by a strike-slip fault movement pushing assembly to carry out strike-slip movement simulation, and observing the formation and development of a fault zone in the soil body models through soil body model observation glass, and the damages to an underground structure model.

Description

technical field [0001] The invention relates to a geotechnical model experiment technology, more specifically, to a pressurizable strike-slip fault simulation device, and a simulation experiment method based on the pressurizable strike-slip fault simulation device. Background technique [0002] In geotechnical engineering physical model experiments, it is very important to restore the stress level of the soil. At present, the simulation of earth pressure level is mostly realized by geocentrifuge. However, due to the limited size of the centrifuge test platform, the reliability of the experimental results will be affected by the size of the model when large-scale engineering problems such as overlying soil damage caused by hidden strike-slip faults occur. When the experiment further considers the damage of underground structures such as shield tunneling, the constraints of the size of the centrifuge experiment platform become more prominent. In addition, the formation proce...

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Problems solved by technology

However, due to the limited size of the centrifuge test platform, the reliability of the experimental results will be affected by the size of the model when large-scale engineering problems such as hidden strike-slip faults cause damage to the overlying soil

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