Anti-scouring testing device for road pavement material

Abstract

The invention discloses an anti-scouring testing device for a road pavement material. The anti-scouring testing device for the road pavement material comprises a squeezing mechanism, a tray mechanism, a box body, a driving mechanism and a bracket, wherein the box body is arranged in the bracket; the tray mechanism is connected with the bracket by virtue of the box body; the squeezing mechanism is arranged at the upper part of the bracket; the squeezing mechanism is connected with the driving mechanism. By virtue of the anti-scouring testing device for the road pavement material, a drive rod is continuously pressed by a cam, so that a spring is continuously compressed and elastic force is continuously released for squeezing a roadbed; as a plurality of holes and grooves are formed in a rubber plate, the rubber plate can simulate a wheel for continuously squeezing the roadbed material; constant-pressure can be generated under the action of a pressure adjusting spring; water flow is generated in the gap of the roadbed material during squeezing and used for scouring the roadbed material; the squeezing time is controlled by a controller; tens of thousands of times of squeezing in the true environment are simulated in a short time; the damage of the roadbed material is observed after testing is finished; the roadbed material with an optimum process ratio is obtained by virtue of a comparison test; the anti-scouring testing device for the road pavement material is worthy of being popularized and applied.

Description

technical field [0001] The invention belongs to the technical field of test equipment for road base materials, and in particular relates to an anti-scouring test equipment for road pavement materials. technical background [0002] With the progress and development of social civilization, the road network is expanding rapidly, and the traffic volume is also increasing geometrically. Especially in the transportation of goods, the phenomenon of overloading and exceeding the limit of vehicles is serious, which is easy to cause erosion damage to the road base, that is, "mud". Phenomenon, in the process of driving, due to the heavy weight of the vehicle under the load, the road surface with water is rolled to generate high-strength water flow, which scours the top layer of the roadbed, causing part of the material to separate from the whole, resulting in gaps and continuous rolling. Hollowing out the roadbed accelerates the damage to the road structure, so higher construction stan...

AI Technical Summary

Problems solved by technology

First, start the water pump motor to spray high-pressure water with adjustable pressure from the nozzle. When the main motor runs continuously, the slider moves left and right on the guide rail, driving the high-pressure water sprayed from the nozzle to repeatedly wash the surface of the test piece; although it plays a certain practical role Simulation, but it does not really simulate when the car rolls the road, because the rolling produces high-pressure water flow in the gap when the road squeezes the road surface, and the water flow of this device is only on the surface, so the measured data is not realistic enough, and its The structure is complex, so a test device that can truly simulate the real data of road response is needed

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