Slope vibration table model test device and method considering hydro-fluctuation belt rock mass degradation

Abstract

The invention relates to a slope vibration table model test device and method considering hydro-fluctuation belt rock mass degradation, and belongs to the field of geotechnical engineering. The devicecomprises a model box system, a water circulation system and a positioning frame system, wherein the model box system comprises a model box bottom steel plate, a model box middle frame box, a model box upper steel frame, model box upper transparent tempered glass and a model box back steel plate, the water circulation system comprises a small water storage tank, a water inlet pipe, a large waterstorage tank, a water outlet pipe and a water pump, and the positioning frame system comprises a steel vertical frame, a movable steel span beam and a movable steel bar. The method comprises the stepsof assembling a model box system, building a slope model, hoisting the model box system, assembling a water circulation system, assembling a position finding frame system, debugging equipment, starting the water circulation system and loading seismic waves. The device can be used in cooperation with existing equipment in a barrier-free mode and has the design advantages of being visual, detachable, compact in structure, wide in application range and the like.

Description

technical field [0001] The invention belongs to the field of geotechnical engineering, and relates to a slope shaking table model test device and method considering the degradation of rock mass in a water-fluctuating zone. Background technique [0002] Generally speaking, the use of indoor shaking table model tests is an effective way to explore the evolution process of rock mass damage in reservoir areas under seismic loads. Due to the influence of periodic water fluctuations, different degrees of degradation occur, which leads to potential threats to the long-term stability of the slope. Therefore, it has important theoretical and practical significance for the slope engineering construction in the reservoir area to fully consider the influence of rock mass degradation in the slope drawdown zone on the dynamic stability of the slope. At present, there are few indoor shaking table model tests considering the deterioration of the rock mass in the hydrofluctuation zone of th...

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Problems solved by technology

At present, there are few indoor shaking table model tests considering the deterioration of the rock mass in the hydrofluctuation zone of the reservoir area, and the walls of the traditional model box system are mostly welded by non-transparent metal plates, and the supporting devices for displacement measurement are immature; On the one hand, it is not conducive to real-time observation, monitoring and recording of the slope rock mass damage and failure evolution process during the application of seismic loads. On the one hand, due to the poor mobility of the displacement measurement supporting device, it is difficult to accurately measure the displacement of the slope body at the designated position of the slope

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