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Model test device for simulating the instability failure of rock and soil slopes under complex conditions

A model test device and slope instability technology, applied in the field of slope engineering and mine geotechnical engineering, to achieve the effect of convenient operation and simple structure

Pending Publication Date: 2020-01-07
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are not many experimental devices that can effectively simulate the coupling effect of rainfall infiltration and earthquake on the stability of open-air rock-soil slopes, which cannot meet the needs of today's scientific research. In view of this, the present invention is proposed

Method used

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  • Model test device for simulating the instability failure of rock and soil slopes under complex conditions
  • Model test device for simulating the instability failure of rock and soil slopes under complex conditions
  • Model test device for simulating the instability failure of rock and soil slopes under complex conditions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A model test device for simulating rock and soil slope instability failure under complex conditions, such as figure 1 , 2 , 3, 4, 5, and 6, including wind and rain simulation system, earthquake simulation system, similar model test system, and monitoring system;

[0062] The wind and rain simulation system includes fan 1, rain plate 2, water pipe 3, flow meter 4, filter 5, booster pump 6, valve 7, water inlet 8, rain plate bracket 9, rain hole 36, connector 37, screw 38, Water baffle 39, right-angle joint 51, cross 52;

[0063] The earthquake simulation system includes a shaking table base 10, a spring I11, a vertically telescopic hydraulic rod 12, a shaking table 13, a support rod 14, an inclined hydraulic rod 15, a shaking table frame 19, a horizontally telescopic hydraulic rod 20, a spring II21, and a chute I22 , slider 53, slider 54;

[0064] The similar model test system includes a model frame bottom plate 16, a test model frame 17, a slope model 18, an electric...

Embodiment 2

[0072] Adopt the model test device of embodiment 1 to simulate rock-soil slope instability failure under complicated conditions to carry out experiment, simulate the slope situation in the common rainfall process, concrete steps are as follows:

[0073] (1) Stack the soil samples taken from the slope site in the test model frame 17 according to similar principles to form the slope model 18, and place the displacement sensor 26, pore water pressure sensor 27, and stress sensor 28 in accordance with the test requirements during the stacking process. 1. The moisture content sensor 29 is embedded in the appropriate position in the soil of the slope model 18, and is connected with the data collector 31. The high-speed photographic camera 32 is being installed on the slope model 18 to capture the appearance of the slope model 18 during the whole test process. Change; the tilt angle of the test model frame 17 is changed by adjusting the height of the inclined hydraulic rod 15 through ...

Embodiment 3

[0079] Adopt the model test device that adopts embodiment 1 to simulate rock-soil slope instability failure under complicated conditions to carry out experiment, simulate the slope situation in windy rainfall process, concrete steps are as follows:

[0080] (1) Stack the soil samples taken from the slope site in the test model frame 17 according to similar principles to form the slope model 18, and place the displacement sensor 26, pore water pressure sensor 27, and stress sensor 28 in accordance with the test requirements during the stacking process. 1. The moisture content sensor 29 is embedded in the appropriate position in the soil of the slope model 18, and is connected with the data collector 31. The high-speed photographic camera 32 is being installed on the slope model 18 to capture the appearance of the slope model 18 during the whole test process. Change; the tilt angle of the test model frame 17 is changed by adjusting the height of the inclined hydraulic rod 15 thro...

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Abstract

The invention discloses a model test device for simulating the instability failure of rock and soil slopes under complex conditions, and belongs to the technical fields of geotechnical engineering andmining engineering. The model test device comprises a wind and rain simulation system, an earthquake simulation system, a similar model test system and a monitoring system. Through the adoption of the device, similar model test of rock and soil slope bodies such as waste dumps and tailings dams can be carried out efficiently, and the stability and failure modes of the slope bodies under rainfall,earthquake and the coupling action thereof can be researched and analyzed.

Description

technical field [0001] The invention relates to a model test device for simulating rock and soil slope instability failure under complicated conditions, and belongs to the technical field of slope engineering and mine geotechnical engineering. Background technique [0002] Due to the variety of failure mechanisms of rock and soil slopes, and the failure process is often accompanied by dynamic changes of various factors, the conclusions obtained by simply using theoretical analysis methods to analyze the failure mechanism and failure process cannot accurately and fully reflect the real situation. The destructiveness of rock and soil slopes is so great that it is impossible to repeat experiments in reality. Therefore, model experiments have become an effective way to study the failure mechanism of rock and soil slopes, the degree of impact after failure, and the prevention and control measures. The model can be used to simulate the failure of rock and soil slopes by selecting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01C11/00G01B21/02G01L1/00G01L11/00
CPCG01N33/24G01N33/246G01C11/00G01B21/02G01L1/00G01L11/00
Inventor 王光进艾啸韬纪翠翠刘文连杨溢许汉华陈志斌眭素刚聂闻丁飞孔祥云田森
Owner KUNMING UNIV OF SCI & TECH
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