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Multi-condition pavement accelerated loading teaching tester

An accelerated loading and teaching test technology, applied in teaching models, instruments, educational tools, etc., can solve the problems of inability to accurately simulate the actual road surface stress conditions, actual response of the road surface, rut damage, complicated operation, etc., to achieve convenient teaching demonstration and The effects of experimental operation, convenient molding, and reduced volume

Pending Publication Date: 2019-03-08
GUILIN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many researchers have found that often the asphalt mixture pavement whose dynamic stability index meets the specification requirements will still have different degrees of rutting damage in the early stage of operation, that is to say, there are slight differences between the indoor simulation process and the actual road construction process. Some indoor rutting tests cannot accurately simulate the actual stress conditions of the actual road surface and the actual response of the road surface under load
[0003] The large-scale full-scale loop test can simulate the actual stress and environmental conditions of the road to the greatest extent, but due to its high cost, long test period, and complicated operation, it is difficult to promote and apply on a large scale

Method used

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  • Multi-condition pavement accelerated loading teaching tester
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  • Multi-condition pavement accelerated loading teaching tester

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Experimental program
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specific Embodiment approach 1

[0020] Specific implementation mode one: combine Figure 1 to Figure 5 Description, a multi-working-condition pavement accelerated loading teaching tester, the device includes a base (1), an electric control cabinet (2), a support mechanism (3), two rolling steel wheels (4), a set of rolling Pressure system lifting mechanism (5), 5 side guide wheels (6), 4 test wheel outer cylinders (7), a set of connecting brackets (8), 1 flywheel (9), road simulation test box (10), 4 detection wheel shafts (11), 4 detection wheels (12), speed reduction mechanism (13), connecting rod (14), 4 wheel sliders (15), one group of rolling oil cylinders (16), rising pallet ( 17), road roller mechanism model (18), oil cylinder fixed frame (19), one group of adjustable weights (20), scale (21), oil pump station (22), multi-point vertical displacement ruler (23).

[0021] The profile of the bracket mechanism (3) is a cuboid bracket mechanism (3) comprising a bracket chassis (3-1), 2 outer diagonal brac...

specific Embodiment approach 2

[0023] Specific implementation mode two: multi-working condition pavement accelerated loading teaching tester is characterized in that: the reduction mechanism (13) is covered by the motor cover and fixed by the frame reinforcement rib (13-3), and the interior is composed of two shaft couplings ( 13-4) Connect the flywheel shaft (13-5) through the coupling (13-6), connect the flywheel shaft (13-5) to the flywheel (9), and adjust the pulley through the motor adjustment plate (13-2) The rotating speed of (13-7) drives the belt (13-1) on the belt pulley (13-7) to rotate then, thereby plays the rate of motion of regulating flywheel (9).

specific Embodiment approach 3

[0024] Specific embodiment three: the pavement simulation test box (10) of multi-working condition pavement accelerated loading teaching tester is made up of crushed stone enclosing frame, asphalt frame, and its inside is provided with heating aluminum plate and spray frame, can simulate the test road Perform heating or watering functions.

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Abstract

The invention discloses a multi-condition pavement accelerated loading teaching tester. The existing large-scale outdoor full-size pavement accelerated loading experimental equipment has the disadvantages of large size, high cost, and complex operation process, which cannot be widely promoted and applied. Therefore, Guilin University of Technology and Guilin Changhai Development Co., Ltd. jointlydevelop the multi-operating pavement accelerated loading tester. The multi-condition pavement accelerated loading teaching tester comprises a test box, a temperature control device and a bracket structure. An equipment rack is fixed on the base, an equipment horizontal mobile platform is mounted on the equipment rack, and a curved wheel is connected to the horizontal mobile platform. The rotationof the curved wheel drives a push rod to perform a cyclic reciprocating motion, so that the reciprocating linear motion of the horizontal mobile platform is promoted for rolling or loading test. The multi-condition pavement accelerated loading teaching tester can realistically simulate the actual stress conditions of different road surface temperatures, different loads and different action times.and can be widely used in the bearing analysis and failure mechanism research of an asphalt pavement structure, and the evaluation of the implementation effect of asphalt pavement maintenance and a reconstruction scheme.

Description

technical field [0001] The invention relates to a multi-working-condition pavement acceleration loading teaching tester, which belongs to the field of test equipment. Background technique [0002] As one of the standard tests stipulated in our country's regulations, the rutting test has been widely used in road design. However, many researchers have found that often the asphalt mixture pavement whose dynamic stability index meets the specification requirements will still have different degrees of rutting damage in the early stage of operation, that is to say, there are slight differences between the indoor simulation process and the actual road construction process. Some indoor rutting tests cannot accurately simulate the actual stress conditions of the actual pavement and the actual response of the pavement under load. [0003] The large-scale full-scale loop test can simulate the actual stress and environmental conditions of the road to the greatest extent, but due to its...

Claims

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Application Information

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IPC IPC(8): G09B25/00G01N19/00G01N33/42
CPCG01N19/00G01N33/42G09B25/00
Inventor 谭波王永康韩涛伍林海黄耀锦
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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