Side slope rainfall simulation testing apparatus

Abstract

The invention relates to a side slope rainfall simulation testing apparatus. The side slope rainfall simulation testing apparatus is composed of a side slope model, a simulated rainfall device, an underground water level simulation system, a heating-chilling integrated air supplying system and a mechanical loading mechanism, wherein the side slope model is arranged in a model box body, the model box body is of rectangular shape with an opening upside, the simulated rainfall device is arranged at the upper part of the model box body and is provided with a plurality of rainfall pipes arranged together, a plurality of nozzles are formed at the bottom of each rainfall pipe and water flows are sprayed out through the nozzles; the underground water level simulation system is composed of the model box body with a porous flexible pipe network, a grid screen and a water drainage pipe network, and is used for simulating the influence of the fluctuation of underground water level on the slide slope model; the mechanical loading mechanism is composed of a stress application plate and a hydraulic jack; and the heating-chilling integrated air supplying system is arranged at the circumferential side of the top part, the bottom part and the periphery of the model box body. The side slope rainfall simulation testing apparatus has simple testing behavior process, can be applied to most of side slope conditions, has low requirements on area size and clearance, and is good in self-stability, moderate in size and convenient for transportation.

Description

Technical field [0001] The present invention is a model test device, specifically a slope rainfall simulation test device. Background technique [0002] Among the various natural disasters, landslides are among the huge geological disasters, and rainfall is the main cause of geological disasters such as landslides and mudslides. On the one hand, rainfall will increase the hydrostatic pressure inside the slope, and on the other hand, it will reduce the strength parameters of the rock and soil, which will lead to landslides in slopes such as mountains and disasters. In our country, the losses caused by landslides caused by rainfall are huge every year. In this regard, the study of slope stability has become a very important topic. Among them, it is necessary to conduct simulated rainfall experiment analysis for slopes of different rock and soil types and slopes, which can provide important and indispensable data for improving the stability of the slope. At present, there are few...

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Problems solved by technology

At present, there are few experimental devices capable of simulating the coupling effect of rainfall infiltration and slope stability, and generally have large volumes. At the same time, they cannot well simulate the impact of quantitative factors such as rainfall intensity and direction on slopes.

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