Indoor analog experiment device for roadbed slope erosion

Abstract

The invention discloses an indoor analog experiment device for roadbed slope erosion. The indoor analog experiment device comprises a movable liftable slope analog device and an artificial rainfall analog device, wherein the movable liftable slope analog device comprises a base device, a panel groove device and a slope gradient adjusting device, the base device and the panel groove device are connected together through a movable hinge, and the panel groove device can rotate freely around the hinge; the artificial rainfall analog device comprises a water supply device, a support device and a spraying device, the water supply device comprises a water supply pool, a water pipe, a water pump, an adjusting valve, a branch valve and a hydrometric propeller, the support device comprises movable wheels, an expansion bracket, a transverse support rod and a longitudinal support rod, and the spraying device comprises a water guide pipe and a prayer head. According to the indoor analog experiment device, a large amount of roadbed slope erosion data is obtained under different working conditions and different rainfall conditions within a short period of time. The indoor analog experiment device is simple in structure, convenient to operate, safe and reliable, low in cost and high in efficiency, and is convenient to popularize and apply.

Description

technical field [0001] The invention relates to the technical field of simulation experiment devices, in particular to an indoor simulation test device for roadbed slope scour. Background technique [0002] In recent years, with the large-scale development of my country's highways and their extension to mountainous areas, the problem of instability and failure of subgrade slopes in mountainous highways under the action of rainfall erosion has become more and more prominent. The subgrade slope is different from the general natural slope. It has undergone multi-layer compaction with great differences, and the subgrade slope is exposed to the natural environment all the year round and is affected by various natural factors; among them, the erosion and seepage damage of rainfall The effect is particularly obvious. The damage to the side slope of the roadbed by scour can block the drainage ditch in the light case, and cause the roadbed to be destroyed and bury the road in the se...

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to solve the shortcomings of the existing slope scouring test simulators that cannot fully simulate different working conditions and carry out indoor scouring tests on roadbed slopes under different rainfall conditions, and provide simple structure, convenient operation, and safety. Reliable and low cost, it is an indoor simulation test device for subgrade slope scour that can obtain a large amount of subgrade slope scour data under different working conditions and different rainfall conditions in a short period of time

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