Slope scour simulation test device

Abstract

The invention discloses a slope scouring simulation test device which comprises a slope simulation device and a rainfall simulation device, wherein the slope simulation device comprises a panel groove, and the panel groove is provided with an angle indicator I; the rainfall simulation device comprises sprayers, a spraying tank, an angle indicator II, a support arm I and a support arm II, the sprayers are evenly distributed on the spraying tank, the axis of a water outlet hole of the sprayer is perpendicular to the surface of the spraying tank, and the angle indicator II is installed on the spraying tank; the support arm I is of a telescopic structure, one end of the support arm II is hinged with the support arm I, and the other end of the support arm II is hinged with the spraying tank; a lifting device I and a pushing device are connected on the support arm II, the lifting device I supports the support arm II to elevate the height of the support arm II, and the spraying tank is pushed by the pushing device to move forward and backward to regulate the angle between the spraying tank and the horizontal plane. Researches are conducted on the slope scouring performances at different rainfall angles, more sufficient test evidences are provided for the design and construction of a roadbed slope structure, and the slope scouring simulation test device is more beneficial to slope treatment.

Description

technical field [0001] The invention relates to the field of slope stability simulation tests, in particular to a slope scour simulation test device. 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 severe case; rainfall scour h...

AI Technical Summary

Problems solved by technology

However, in the above-mentioned test device, the sprinkler head of the sprinkler is fixed. Although the intensity of the simulated rainfall can be adjusted through the water pump and related valves, the angle between the simulated rainfall and the simulated slope cannot be adjusted; In the actual environment, affected by the wind speed, the slope of the same slope often encounters rainfall erosion at different angles, that is, the test device cannot study the erosion performance of the slope under different rainfall angles, and it cannot be used for the design of the subgrade slope structure. Provide sufficient test basis for construction and construction

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