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Construction method for high-precision wavy pavement for automobile test

A technology of automobile testing and construction methods, which is applied to pavement, roads, roads and other directions paved with prefabricated blocks, and can solve the problems of difficult construction and high precision

Active Publication Date: 2012-09-26
THE FIRST ENG CO LTD OF CTCE GRP
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, there are no construction and acceptance standards for this type of road in China. The allowable error of longitudinal slope elevation of expressway and civil aviation airport road is ±5mm, and this type of road surface is flat, which is easy to implement, while the corrugated road is a curved road surface, and the accuracy With such high requirements, the construction is very difficult

Method used

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  • Construction method for high-precision wavy pavement for automobile test
  • Construction method for high-precision wavy pavement for automobile test
  • Construction method for high-precision wavy pavement for automobile test

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Embodiment Construction

[0027] A high-precision corrugated road construction method for automobile testing, including prefabricated corrugated road prefabricated parts and installation of corrugated road prefabricated parts and pouring of pavement concrete, the steps of prefabricated corrugated road prefabricated parts are as follows:

[0028] Such as figure 1 As shown, the prefabricated part mold is processed, and the cast steel tire mold 2 is adopted. According to the waveform and size of the wavy road, the surface of the tire mold 2 is set to be a sinusoidal concave surface, and the side mold 3 is erected on the side of the tire mold 2. By bolts and The gasket connects the tire mold 2 and the side mold 3, and the tie rod 1 is straddled between the two side molds 3 to position the side mold 3 and the tire mold 2 to form a 90° shape. Such as figure 2 As shown in the figure, pouring the wave-shaped road prefabricated blocks, in order to facilitate the movement of the prefabricated parts and the ins...

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Abstract

The invention discloses a construction method for a high-precision wavy pavement for automobile test. The method comprises prefabrication and installation of wavy road prefabricated pieces and pouring of pavement concrete, and specifically comprises the following steps of: prefabricating a wavy pavement block by using a high-precision template and adopting steel fiber reinforced concrete, embedding pre-buried pieces for positioning and fixing the prefabricated block on a cast concrete cushion, installing the prefabricated block through a compression device and a clamp, accurately adjusting, positioning, placing and fixing an outer template, pouring self-leveling mortar in the middle to reach minimum compressive strength, and loosening and detaching the outer template. The method has the advantages that the precision design requirement of the pavement is ensured; the pavement is convenient to assemble and disassemble, meets the pouring requirement, can be reused, and is easy to repair and maintain; and the method is suitable for construction of various special-shaped curved cement concrete pavements with high precision requirements.

Description

technical field [0001] The invention mainly relates to a road surface construction method, in particular to a high-precision corrugated road surface construction method used to affect the car body and various parts after the car is resonated. Background technique [0002] The corrugated road surface is a special automobile test road surface. Its function is the impact of high-intensity vibration (resonance) on the car body and various parts when the car is running at 50km / h. Dongfeng Motor Co., Ltd. Dongfeng Nissan Passenger Vehicle Company Technology Center needs to build a corrugated road test track for improving research and development capabilities. It is 100m long, 3m wide, and the length of a single wave is 500mm. At the same time, the waveform accuracy of the road surface is required to meet the requirements in Table 1 below: [0003] [0004] Table 1 Accuracy requirements for corrugated roads [0005] There are similar cases of corrugated roads in many domestic ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C5/06E01C9/00B28B7/22B28B1/093
Inventor 张宏斌郭宏坤曹友东王时根祝婷王新仁王睿
Owner THE FIRST ENG CO LTD OF CTCE GRP
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