Loading unit for simulating vehicle dynamic load on pavement

A technology of loading device and simulating vehicle, applied in the field of loading device simulating the dynamic load of vehicle on road surface, can solve the problems of natural conditions and external factors, large input of manpower and material resources, low experimental accuracy, etc. Reasonable design and the effect of shortening the experimental time

Inactive Publication Date: 2005-04-13
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dynamic load test is to use vehicles of different tonnages on a section of highway to repeatedly pass through for a long time until the road surface is destroyed, and to measure the changing parameters of the road surface. The impact is serious, and the accuracy of the experiment is not high

Method used

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  • Loading unit for simulating vehicle dynamic load on pavement
  • Loading unit for simulating vehicle dynamic load on pavement
  • Loading unit for simulating vehicle dynamic load on pavement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] exist figure 1 Among them, the loading device for simulating the dynamic load of the vehicle on the road surface in this embodiment is composed of a loading device 1 , a hydraulic motor 2 , a reversing valve 3 , a road roller 4 , a hydraulic pump 5 , a mounting frame 6 , and a frame 7 .

[0018] A mounting frame 6 is fixedly connected to the running bearing seat of the road roller 4 by means of threaded fasteners, the reversing valve 3 is installed on the frame 7, the frame 7 is the frame of the press 4, and the reversing valve 3 is connected to the The hydraulic pump 5 is connected with each other, and the hydraulic pump 5 of the present invention is the hydraulic pump of the road roller 4 . A loading device 1 is fixedly connected to the mounting frame 6 with a threaded fastener. The loading device 1 is used to generate a vertical load on the road surface, simulate the dynamic load of the vehicle on the road surface, and determine various parameters of the road surface...

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PUM

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Abstract

Disclosed is a loading unit for simulating vehicle dynamic load on pavement, wherein the road leveling machine is provided with a mounting rack and a frame, the frame is provided with a directional selecting valve for connecting the hydraulic pump through tubes, a loading unit for simulating vehicle dynamic load on pavement is arranged on the mounting rack, a hydraulic fluid motor is arranged on the loading unit for connecting the directional selecting valve through piping. In accordance with the invention , the vertical dynamic load to the pavement is employed to simulate the impulsion impact load to the pavement by the automobile during high speed running, thus analyzing the influence of the subgrade settlement to asphalt concrete road destruction. The unit can shorten experiment period and increase the test efficiency.

Description

technical field [0001] The invention belongs to the technical field of machines, tools or auxiliary equipment for the construction and repair of pavement of roads or other similar structures, and particularly relates to a loading device for simulating the dynamic load of vehicles on road surfaces. Background technique [0002] At present, my country's expressways are developing rapidly, and there is a common problem of short service life. The main reasons are the construction quality and overloading of vehicles. In addition, the number of vehicles passing on the expressway has increased significantly, which will lead to the damaged service life of the expressway. shorten. [0003] Road damage occurs several months or even tens of months after it is opened to traffic. It is unrealistic to conduct long-term observation of a large number of roads in the wild. To study the mechanism of road damage and take targeted measures in road design and construction is to improve the qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/42
Inventor 郁录平余强谢永利张维锋杨晓华张志刚
Owner CHANGAN UNIV
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