Groove melting prevention type composite runway main body structure suitable for polar region airport

Abstract

The utility model relates to a grooving anti-melting type composite runway main body structure suitable for a polar region airport. The structure comprises a compacted ice and snow road base, a heat preservation anti-melting layer, a geotechnical cloth reinforcing layer, a crushed ice stabilizing base layer and a wood-doped fiber grooving wear-resistant ice surface layer which are sequentially arranged from bottom to top. According to the utility model, common ice and snow in a polar region are used as airport runway construction materials, the runway surface structure with stronger functionality and bearing capacity is formed through simple machining, light geotechnical cloth and thermal insulation materials are selected and are easy to transport, and polar region construction conditions are fully considered in material selection; the surface layer adopts a wood-doped fiber grooving technology to form a rough wear-resistant surface layer, so that the surface friction resistance of the ice road surface can be effectively improved; the adopted crushed ice stable base layer can bear large aircraft load, and the bearing capacity of the ice runway is effectively improved; the thermal insulation anti-melting layer can prevent runway deflection caused by ice layer melting due to polar region temperature rise and global warming; the sensing optical fibers are woven in the geotechnical cloth, so that the pavement structure has a temperature and stress self-sensing function, and the intellectualization level of the polar region airport runway is remarkably improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ice and snow airport construction, and particularly relates to a grooved anti-melting composite runway main structure suitable for polar airports. Background Art

[0002] In the past, transportation in the polar regions was mainly carried out by ship cargo and small helicopters. Therefore, building fixed-wing aircraft runways in the polar regions can greatly enhance the country's transportation capabilities in the region and is an indispensable infrastructure for polar scientific research, polar engineering construction and other activities.

[0003] However, the polar regions' high latitudes, dry climates, low temperatures, and year-round coverage by ice and snow significantly restrict runway construction. Ordinary runway construction materials, such as asphalt and concrete, are difficult to use for polar airport runways. The construction of airport runways in polar regions must be tailored to local conditions, and ice and snow are the most commonly used materials for polar airport runway construction. The polar regions are complex environments, with temperatures exceeding the melting point of ice and snow for short periods each year, leading to localized melting. The flow of glaciers in the polar regions also poses numerous challenges to polar airport construction. Therefore, the construction of airport runways in the polar regions must move beyond traditional runways and existing ice and snow runways, utilizing common polar materials such as ice and snow, or easily transportable materials, to provide a high-strength, stable, and anti-skid infrastructure for aircraft takeoff and landing. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present utility model is to provide a grooved anti-melting composite runway main structure suitable for polar airports.

[0005] In order to achieve the above-mentioned purpose, the main structure of the grooved anti-melt composite runway suitable for polar airports provided by the utility model includes a compacted ice and snow roadbed, a thermal insulation anti-melt layer, a geotextile reinforcement layer, a crushed ice stabilization base layer and a wood fiber-added grooved wear-resistant ice surface layer arranged in sequence from bottom to top.

[0006] The compacted ice and snow road base is an ice and snow layer with a flat top surface and a dense structure after the upper surface ice and snow layer is removed.

[0007] The heat-insulating and anti-melting layer is made of polystyrene materials.

[0008] The geotextile reinforcement layer is made of bidirectional woven fabric, and has sensing optical fibers woven into it which are connected to a demodulator and a remote system in sequence.

[0009] The crushed ice stabilization base layer is composed of graded crushed ice.

[0010] The wood fiber-mixed grooved wear-resistant ice surface layer is a frozen layer of sawdust and seawater mixed slurry, and grooves are carved at intervals on the top surface.

[0011] The main structure of the grooved anti-melt composite runway suitable for polar airports is either located below the surface of the permanent ice layer or paved layer by layer above the surface of the permanent ice layer.

[0012] The advantages and positive effects of the grooved anti-melt composite runway main structure suitable for polar airports provided by the utility model are as follows: using common polar ice and snow as airport runway construction materials, a pavement structure with strong functionality and load-bearing capacity can be formed through simple mechanical processing; the selected geotextiles and thermal insulation materials are lightweight and easy to transport, and the material selection fully considers the polar construction conditions; the surface layer adopts wood fiber grooving technology to form a rough and wear-resistant surface layer, which can effectively improve the surface friction resistance of the ice runway; crushed ice is heated and then frozen to form a crushed ice stable base layer, which can withstand large aircraft loads and effectively improve the bearing capacity of the ice runway; the thermal insulation and anti-melt layer can prevent runway deflection caused by polar warming and global warming leading to ice melting; the sensing optical fiber is woven into the geotextile, so that the pavement structure has the function of self-sensing temperature and stress, which can significantly improve the intelligence level of polar airport runways, provide a high-strength, wear-resistant and stable pavement structure for the construction of polar ice runways, and provide support for the design and construction of polar ice runways. In addition, the runway structure is different from ordinary cement concrete and asphalt runways, as well as from the blue ice runways and sea ice runways widely used in polar regions, and is extremely different from bobsleigh tracks and compacted snow runways. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A three-dimensional diagram of the main structure of the grooved anti-melt composite runway suitable for polar airports provided by the utility model;

[0014] Figure 2 This is a cross-sectional view of the main structure of the grooved anti-melt composite runway suitable for polar airports provided by the utility model. DETAILED DESCRIPTION

[0015] In order to further understand the content, features and effects of the present invention, the following embodiments are listed and described in detail with reference to the accompanying drawings:

[0016] like Figure 1 — Figure 2 As shown, the main structure of the grooved and anti-melt composite runway suitable for polar airports provided by the utility model includes a compacted ice and snow roadbed 1, a thermal insulation and anti-melt layer 2, a geotextile reinforcement layer 3, a crushed ice stabilization base layer 4 and a wood fiber-added grooved and wear-resistant ice surface layer 5, which are arranged in sequence from bottom to top.

[0017] The compacted ice and snow roadbed 1 is an ice and snow layer with a flat top surface and a dense structure after the upper surface ice and snow layer is removed.

[0018] The heat-insulating and anti-melting layer 2 is made of polystyrene materials, has heat-insulating and cold-resistant functions, and can effectively prevent the compacted ice and snow roadbed 1 from melting.

[0019] The geotextile reinforcement layer 3 is made of bidirectional woven fabric, and is internally woven with a sensing optical fiber 6 which is sequentially connected to a demodulator and a remote system, and has the function of sensing surface structural stress and temperature.

[0020] The crushed ice stabilization base layer 4 is composed of graded crushed ice and is the main aircraft load bearing layer.

[0021] The wood fiber-mixed grooved wear-resistant ice surface layer 5 is a frozen layer of sawdust and seawater mixed slurry, and grooves are carved at intervals on the top surface, which can provide greater friction resistance for the aircraft while improving the wear resistance of the ice surface.

[0022] The main structure of the grooved anti-melt composite runway suitable for polar airports is either located below the surface of the permanent ice layer or paved layer by layer above the surface of the permanent ice layer.

[0023] Taking the construction of a polar airport runway as an example, the construction and trial operation method of the grooved anti-melting composite runway main structure applicable to polar airports provided by the utility model is described:

[0024] (1) First, the surface ice and snow layer is excavated mechanically to a designed depth to expose a fresh ice base surface, and then the ice base surface is leveled and compacted to a designed compaction degree using loose snow to form a compacted ice and snow roadbed 1;

[0025] (2) Laying the thermal insulation and anti-melting layer 2 and the geotextile reinforcement layer 3 on the compacted ice and snow roadbed 1 in sequence;

[0026] (3) Connect the sensing optical fiber in the geotextile reinforcement layer 3 to the demodulator and test the reliability of its sensing signal;

[0027] (4) Laying graded crushed ice on the geotextile reinforcement layer 3, heating the crushed ice with special equipment and then freezing it to form a crushed ice stabilized base layer 4;

[0028] (5) Injecting a predetermined depth of sawdust and seawater mixture slurry onto the crushed ice stabilization base 4, and allowing the sawdust and seawater mixture slurry to freeze to form a wood fiber wear-resistant ice layer. Then, using specialized equipment, grooves are carved on the top surface of the wood fiber wear-resistant ice layer to form a wood fiber grooved wear-resistant ice surface layer 5;

[0029] (6) After the main structure of the grooved anti-melting composite runway suitable for polar airports is constructed in accordance with the length and width that meet the requirements of the aircraft model, auxiliary systems such as the pavement temperature stress sensing system, navigation lights, and markings are installed and debugged, and finally the aircraft take-off and landing and flyability verification is carried out.

[0030] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A grooved, anti-melt composite runway main structure suitable for polar airports, characterized by: The grooved anti-melt composite runway main structure suitable for polar airports comprises a compacted ice and snow roadbed (1), a thermal insulation anti-melt layer (2), a geotextile reinforcement layer (3), an ice crushing stabilization base layer (4), and a wood fiber-doped grooved wear-resistant ice surface layer (5), which are arranged in sequence from bottom to top.

2. The grooved anti-melt composite runway main structure suitable for polar airports according to claim 1 is characterized in that: The compacted ice and snow roadbed (1) is an ice and snow layer with a flat top surface and a dense structure after the upper surface ice and snow layer is removed.

3. The grooved anti-melt composite runway main structure suitable for polar airports according to claim 1 is characterized in that: The heat-insulating and anti-melting layer (2) is made of polystyrene materials.

4. The grooved anti-melt composite runway main structure suitable for polar airports according to claim 1 is characterized in that: The geotextile reinforcement layer (3) is made of bidirectional woven fabric, and has a sensing optical fiber (6) woven into it, which is connected to a demodulator and a remote system in sequence.

5. The grooved anti-melt composite runway main structure suitable for polar airports according to claim 1 is characterized in that: The crushed ice stabilization base layer (4) is composed of graded crushed ice.

6. The grooved anti-melt composite runway main structure suitable for polar airports according to claim 1 is characterized in that: The main structure of the grooved anti-melt composite runway suitable for polar airports is either located below the surface of the permanent ice layer or paved layer by layer above the surface of the permanent ice layer.

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