General model test system for slope stability mechanism research under multi-seepage conditions

Abstract

The invention discloses a general model test system for slope stability mechanism research under multi-seepage conditions which realizes different seepage conditions by designing three different boundaries in a model device for various types of induced slope seepage under complicated water environment changes. Boundary 1 (a rainfall device) can be used to simulate slope instability under rainfalleffect, boundary 2 (a water supply tank and a porous glass plate) can be used to simulate the lateral-seepage instability caused by the water filling of slope trailing edge cracks or the stable waterlevel change at the trailing edge, and boundary 3 (water injection space) can be used to simulate the seepage instability from the bottom to the top caused by slope bottom water level rise or the local pressure water effect. The three boundaries can be used alone or in combination with each other to achieve better simulation of the water environment change around the slope. According to differentactual engineering conditions, simulations are carried out through different working conditions in order to provide reference for slope stability disaster prevention and mitigation.

Description

technical field [0001] The invention relates to the technical field of test models, in particular to a general model test system for studying slope stability mechanism under multi-seepage conditions. Background technique [0002] Slope landslides have the characteristics of wide distribution, high outbreak frequency, and great harm. Studies have shown that most slope failures are induced by water. According to the complex water environment changes, the slope instability induced by water is mainly manifested in the following three aspects. First, in the rainy season, the effect of rainfall is obvious. The amount of rainfall, rainfall intensity, short-term heavy rain and long-duration light rain will all pose a great threat to the slope. This situation is common in various slope instability induced by rainfall. Second, due to the water filling of the cracks at the rear edge of the slope or the high water level at the rear edge, seepage in the lateral slope often has adverse ...

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Problems solved by technology

Second, due to the water filling of the cracks at the rear edge of the slope or the high water level at the rear edge, seepage in the lateral slope often has adverse effects. stable

[0004] (1) The geological structure that can be simulated is single, and the geometric size is quite different from the actual one;

[0005] (2) The seepage conditions that can be simulated are single, and most of them are concentrated in rainfall-type tests;

[0006] (3) The sealing of the model device is not good enough, and there is water leakage;

[0007] (4) The contact problem between the cables of the sensors that need to be laid in the test and the test soil;

[0008] (5) It is difficult to move soil before and after the test

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