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Reservoir bank water level change and slope angle variable landslide model test device and method under earthquake and rainfall coupling effect

A landslide model test, water level change technology, applied in the direction of using optical devices, measuring devices, soil material testing, etc., can solve the problem of large equipment, achieve the effect of overcoming application limitations, stable operation, and accurate lifting height and speed

Pending Publication Date: 2020-11-24
HOHAI UNIV
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Problems solved by technology

But the existing methods all set up the scanner outside the model box, and the equipment is relatively large.

Method used

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  • Reservoir bank water level change and slope angle variable landslide model test device and method under earthquake and rainfall coupling effect
  • Reservoir bank water level change and slope angle variable landslide model test device and method under earthquake and rainfall coupling effect
  • Reservoir bank water level change and slope angle variable landslide model test device and method under earthquake and rainfall coupling effect

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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] A kind of landslide model test device for water level change and slope angle variable landslide under the coupling action of earthquake and rainfall described in the present invention, such as Figure 1-4As shown, the model box is connected with the base 7 through a hinge 10 and fixed on the vibrating table. The model box is a rectangular box, including a front side plate 1, a bottom plate 2, a left side plate 3, a right side plate 4, and a rear side Plate 5 and its internal permeable plate 6; the front side plate 1, left side plate 3 and right side plate 4 are plexiglass plates, and the left side plate 3 and right side plate 4 are connected to the front side plate 1 and the rear side by sealant The plate 5 and the bottom plate 2 are sealed and connected; the rear side plate 5 and the bottom plate 2 are connected by welding, an...

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Abstract

The invention discloses a reservoir bank water level change and slope angle variable landslide model test device and method under an earthquake and rainfall coupling effect, and belongs to the field of slope engineering landslide disaster tests. The device comprises a model box, a rainfall system, an electric lifting system and a deformation monitoring system. The model box comprises a bottom plate, front, back, left and right side plates and an internal permeable plate. The rainfall system comprises a water storage tank, a water pump, a water supply main pipe, an electronic control main valve, a flowmeter, a nozzle, a rainfall system bracket and a jack. The electric lifting system comprises a servo motor, a bearing and a belt. The deformation monitoring system comprises a three-dimensional laser scanner. The method comprises: jacking the rainfall system support to a proper height, filling the model box with soil, then lifting the model box to a designated angle, simulating the rainfall working condition, starting the vibration table, and monitoring slope deformation through the three-dimensional laser scanner in the testing process. Simulation of various rainfall working conditions is achieved, the landslide model is adjusted at any angle, and landslide tests with different inclination angles are achieved.

Description

technical field [0001] The invention belongs to the field of landslide hazard tests for side slope engineering, and in particular relates to a model test device and method for landslide model test of reservoir bank water level change and slope angle variable under the coupled action of earthquake and rainfall. Background technique [0002] The loss caused by landslides is very huge every year. The reasons for landslide disasters include rainfall factors, earthquake factors, and reservoir water level changes. Especially when the water level rises, the infiltration of slope soil and rocks can lead to an increase in the super-static pore water pressure of the soil, a decrease in the effective stress and anti-sliding force on the potential sliding surface, and a corresponding decrease in the strength of the soil under immersion, which may induce landslide. [0003] The fundamental task of studying the instability of reservoir bank landslides caused by the change of reservoir wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01B11/16G01B11/02
CPCG01N33/24G01B11/16G01B11/02
Inventor 姬建姜振夏嘉诚王乐沛崔红志高玉峰
Owner HOHAI UNIV
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