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Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement

A technology for asphalt pavement and non-destructive testing, which is applied in the direction of roads, roads, road repairs, etc. It can solve the problems of large overall destructiveness of the road surface, deviation of road surface performance, and delayed repair, so as to save time and labor. Targeted, small impact, and error small effect

Inactive Publication Date: 2010-12-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high subjectivity and low accuracy in the existing asphalt pavement freeze-thaw damage detection, as well as the large damage to the overall road surface in the auxiliary test, the deviation between the test and the original pavement performance, and time-consuming and labor-intensive problems. and the problem of delaying the best time to repair the pavement, and then provide a rapid non-destructive testing equipment for freezing and thawing damage of asphalt pavement

Method used

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  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement
  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement
  • Field rapid non-destructive detecting device of freezing-melting destruction of asphalt pavement

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specific Embodiment approach 1

[0007] Specific implementation mode 1: Combination Figure 1 ~ Figure 3 To illustrate this embodiment, the on-site rapid non-destructive inspection equipment for freeze-thaw damage of asphalt pavement in this embodiment includes a speed changer 1, a platen 2, a transmission rod 3, a steel brush 4, at least three leg sleeves 5, and a supporting leg A matching number of lifting rockers 6, lifting brake ring 7, fixed foot seat 8 and transmission shaft 9, said steel brush 4 is composed of a steel brush seat 4-1 and a plurality of wire bundles 4-2. The steel wire bundle 4-2 is fixedly installed on the lower end surface of the steel brush holder 4-1, the at least three leg sleeves 5 are installed on the lower end surface of the platen 2, and the speed changer 1 is installed on the upper end of the platen 2. On the end surface, the upper end of the transmission rod 3 passes through the platen 2 and is fixedly connected to the output end of the speed changer 1, and the steel brush hold...

specific Embodiment approach 2

[0008] Specific implementation manner two: combination figure 1 with figure 2 Describing this embodiment, the number of wire bundles 4-2 in this embodiment is 18-22. This setting increases the strength of the steel brush. The other composition and connection relationship are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation mode three: combination figure 1 To describe this embodiment, the length L of the wire bundle 4-2 of this embodiment is 15 cm. This setting is more suitable for freeze-thaw damage detection of asphalt pavements. The other composition and connection relationship are the same as in the second embodiment.

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Abstract

The invention relates to a field rapid non-destructive detecting device of freezing-melting destruction of an asphalt pavement, which belongs to detecting devices of freezing-melting destruction of asphalt pavements. The invention solves the problems that the freezing-melting destruction detection of the prior asphalt pavement has large subjectivity and low accuracy, and an auxiliary test has large destructiveness to the whole pavement, generates deviations with the original pavement performance, wastes time and labor force and delays the optimal time for repairing the pavement. In the invention, support leg pipe casings are arranged on the lower end surface of a bedplate, and a variable-speed motor is arranged on the upper end surface of the bedplate; the upper end of a driving rod is fixedly connected with the output end of the variable-speed motor; a steel brush holder of a steel brush is fixedly arranged on the lower end surface of the driving rod, a driving shaft is arranged in each support leg pipe casing, and the lower end of each driving shaft extends out of the support leg pipe casing and is fixedly connected with a fixed leg holder; the lower end of each lifting rocker is fixedly connected with the driving shaft, and a lifting brake ring is connected with the driving shaft by threads. The invention has the advantages of less influence on the pavement, short period, small errors, time and labor saving, strong pertinency, and the like.

Description

Technical field [0001] The invention relates to an asphalt pavement freeze-thaw damage detection equipment. Background technique [0002] Existing technologies at home and abroad mostly use the theory of road management system to detect and determine the degree of damage caused by freezing and thawing of asphalt pavement. However, the degree of damage to the asphalt pavement evaluated by these pavement management systems is judged based on the appearance of the pavement. It is mainly based on experience, and the subjectivity is high, the accuracy is not high, it is difficult for ordinary technicians to grasp, and there is a lack of targeted auxiliary tests. The current auxiliary test is to take the core on the asphalt pavement, and then take the core sample back to the laboratory for various tests; this method is a destructive test, and 20 cylinder cores with a diameter of 101.6mm and a height of 63.5mm are taken every kilometer of the sampling section. In this way, many core ho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01C23/01
Inventor 谭忆秋岳军声蓝天云陈克群周纯秀赵立东刘彦郭猛
Owner HARBIN INST OF TECH