Rainfall Simulator for Slope Scouring Test

Abstract

The invention discloses a raining simulation device for a slope washing test. The raining simulation device for the slope washing test comprises sprayers, a spraying box, an angle indicator, a support arm I and a support arm II, wherein the sprayers are used for spraying water; the sprayers are mounted on the spraying box; the angle indicator is used for detecting an angle between the spraying box and the horizontal plane; the sprayers are uniformly distributed on the spraying box; the axes of water outlet holes of the sprayers are perpendicular to the surface of the spraying box; the angle indicator is mounted on the spraying box; one end of the support arm II is hinged to the support arm I while the other end of the support arm II is hinged to the spraying box; the support arm II is connected with a lifting device and a pusher; the lifter lifts up the support arm II to increase the height of the support arm II; and the pusher pushes the spraying box to move in the front-back direction so as to adjust the angle between the spraying box and the horizontal plane. By the raining simulation device for the slope washing test, the slope washing property at different raining angles can be researched, full test basis is provided for design and construction of a roadbed slope structure, and slope treatment is facilitated.

Description

technical field [0001] The invention relates to the field of slope stability simulation tests, in particular to a rainfall simulation device used for slope scour tests. 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 cas...

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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