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A test method for water accumulation in airport road foundation

A test method and airport technology, applied in the direction of material moisture content, material thermal development, material thermal conductivity, etc., can solve problems such as cracking, affecting the normal service of the airport, and road surface deformation

Active Publication Date: 2021-11-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The accumulation of water in the roadbed of the airport will cause serious engineering disasters. In winter, the water accumulated under the large area of ​​impermeable road surface freezes and expands in volume. When the temperature rises, the volume thaws and shrinks, and the freeze-thaw cycle will cause deformation or cracking of the road surface , affecting the normal service of the airport

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  • A test method for water accumulation in airport road foundation
  • A test method for water accumulation in airport road foundation
  • A test method for water accumulation in airport road foundation

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Embodiment Construction

[0033] from figure 1 It can be seen that the method for testing the accumulation of water in the airport road foundation disclosed in this embodiment adopts a new test system, which includes a heat insulation box 1, a box temperature controller, a heat insulation cylinder 3, and a temperature sensor 4 , data acquisition instrument 5 and computer 6.

[0034] The heat insulation box 1 of this embodiment is a square box, and the outside of each side plate is provided with materials such as asbestos as a thermal insulation layer, so as to avoid heat conduction inside and outside the box as much as possible.

[0035] The top in the heat insulation box 1 is symmetrically arranged with box temperature controllers. The box temperature controller can be an outsourced part that separates the heating part 21 and the temperature regulating part 22. The heating part is fixed inside the heat-insulating box, while the temperature-regulating part is placed outside the heat-insulating box to ...

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Abstract

The invention discloses a test method for water accumulation in roadbed of an airport. The test system comprises a constant temperature box device, a heat insulation cylinder, a temperature sensor, a data acquisition instrument and a computer; the constant temperature box device includes a heat insulation box and a box arranged inside temperature controller; the heat insulation cylinder includes a heat insulation cylinder body and a cover on its top surface, and the cover is a three-layer structure imitating the structure of the road base surface layer. When the airport subgrade soil is packaged in the heat insulation cylinder and heated and cooled, heat conduction can only be conducted through the cover, which can truly simulate the heat transfer effect of the airport road subgrade soil. Repeatedly simulated and tested the law of cooling change of airport subgrade soil under different conditions, and tested the relationship between the law of cooling change of airport road subgrade soil and saturation, compaction, and room temperature. After collecting and recording the on-site pavement temperature, compare the temperature distribution characteristics in different areas, compare with the indoor test results, analyze and determine the degree of moisture accumulation under the on-site pavement, and provide a strong reference technical basis for the detection of water accumulation in the airport road foundation .

Description

technical field [0001] The invention belongs to the field of rock and soil test instruments, and in particular relates to a test method for accumulated water in road foundations of airports. Background technique [0002] The accumulation of water in the roadbed of the airport will cause serious engineering disasters. In winter, the water accumulated under the large area of ​​impermeable road surface freezes and expands in volume. When the temperature rises, the volume thaws and shrinks, and the freeze-thaw cycle will cause deformation or cracking of the road surface , affecting the normal service of the airport. Therefore, it is very important to detect the accumulated water in the road foundation of the airport and deal with it in time in the maintenance and treatment of the airport. Contents of the invention [0003] The purpose of the present invention is to provide a test method that can provide a technical basis for the test of airport roadbed ponding. [0004] The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/20G01N25/18G01N25/58
CPCG01N25/18G01N25/20G01N25/58
Inventor 张升叶新宇彭锐盛岱超谢林伯刘蔚
Owner CENT SOUTH UNIV