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A method for detecting the compactness of highway subgrade and road surface

A detection method and compactness technology, which is applied in the field of construction, can solve the problems of complex workload of the detection method, long detection process, and inability to measure the overall technical index of road subsidence quality.

Active Publication Date: 2021-06-25
中睿智航(浙江)工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The technical problem to be solved by the present invention is that the workload of the detection method in the prior art is complicated, the working process of detection takes a long time, and the detection result cannot be used as an overall technical index to measure the quality of road sinking.

Method used

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  • A method for detecting the compactness of highway subgrade and road surface

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Experimental program
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Embodiment Construction

[0023] There are no less than 2 inspection points for every 1000 meters of road length;

[0024] The detection point is not less than 0.5 meters from the roadside;

[0025] The inner cavity of the limit vibration frame is rectangular or circular, as shown in the figure, the inner cavity is rectangular; the limit vibration frame is referred to as frame;

[0026] The size of the inner cavity of the limit vibration frame 5 is 10 to 20 mm larger than the outer size of the vibration plate 4 of the flat vibrator; the width of the frame side is 200 mm, and the thickness of the frame has two layers, the upper layer is made of steel material 6 thickness 20 mm, and the lower layer is made of rubber material 7 thickness 20MM;

[0027] Place the frame flat on the detection point;

[0028] According to the quality of water, 1.5% washing powder is added to water and stirred to form a washing powder solution; when the detection point is 50% of the optimum water content, pour the washing po...

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Abstract

The invention relates to a method for detecting the compactness of road subgrades and road surfaces. The technical problem to be solved by the present invention is that the detection method in the prior art has a complex workload and a long detection process, and the detection result cannot be used as an overall technical index for measuring the quality of road subsidence. The technical solution of the invention is a measurement method for the subsidence of the subgrade and road surface caused by the joint effect of the vertical drop of the compactness of the limited vibration detection and the horizontal movement of the internal stress of the road material.

Description

Technical field: [0001] The invention relates to the field of building technology, in particular to a road building construction technology. Background technique: [0002] The methods for measuring the degree of compaction in highway subgrade construction include sand filling method, water filling method (water bag method), ring knife method, nuclear instrument method, core drilling method, etc., and the most commonly used method is the sand filling method of digging pits. Compared with the "Highway Geotechnical Test Regulations" (JTG E40-2007) and the technical specification for highway subgrade construction JTG F10-2018, the common disadvantages of these testing methods are that the workload of testing is complex and the working process of testing takes a long time. Prior art CN203603007U discloses a vibration induction detection device for detecting the density and quality of roadbeds. The technical solution is: the chassis (2) is connected to a touch display screen (1) t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N19/08E02D1/00
CPCE02D1/00G01N19/08
Inventor 陈恩慈陈恩福叶晓网彭国洪
Owner 中睿智航(浙江)工程技术有限公司