Compression-resistant and moisture-proof mounting structure of foreign object detection system for airport runway

Abstract

The utility model belongs to the technical field of airport runway management, and particularly relates to a foreign object detection system pressure-resistant and moisture-proof mounting structure for an airport runway, which comprises a channel and a corrugated hose, the channel is arranged in a runway shoulder area, penetrates through a cement surface layer and goes deep into a cement macadam base layer, and the corrugated hose is arranged in the channel; a moisture-proof block, an isolation plate, a water stabilizing layer, a joint expansion plate and a joint sealing material are sequentially arranged in the water-proof plate. Mounting holes for the detector and the detection host are formed in two ends of the channel, and the corrugated hose is embedded into the arc groove of the moisture-proof block and is connected with the detector and the host through holes in the bottom of the channel. The technical problems that in the prior art, a corrugated hose is prone to compression deformation or damage, poor in anti-corrosion sealing performance, difficult to maintain and large in influence on the stability of a runway base layer are solved, the protection performance, the anti-corrosion sealing performance and the system installation reliability of the corrugated hose are improved by optimizing channel arrangement and internal structure design, and the service life of the corrugated hose is prolonged. Meanwhile, damage to a runway main body structure is reduced, maintenance is convenient, and the service life of the runway is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of airport runway management, more particularly, relate to a kind of foreign object detection system compression dampproofing installation structure for airport runway. BACKGROUND

[0002] In modern airport operation, runway foreign object (Foreign Object Debris, FOD) is an important hidden trouble affecting flight safety. FOD usually refers to foreign objects existing on the runway surface, such as metal fragments, tire fragments and block concrete, etc. These objects may cause damage to the aircraft, and even cause serious accidents. Therefore, timely and effective detection and removal of FOD is the key to ensure the safe operation of the airport.

[0003] At present, some large airports at home and abroad have gradually introduced intelligent runway foreign object detection systems. These systems usually use optical detection, radar scanning and other technical means to monitor the runway surface in real time, and can quickly find and locate FOD, so as to provide support for rapid removal. The normal operation of these systems depends on high-precision sensors and communication equipment, and providing reliable power supply and communication line connection for these equipment is an important link in system construction.

[0004] In the process of laying intelligent detection system, in order to ensure the concealment and safety of power supply and communication line, corrugated hose is often laid on the runway surface or nearby to protect the line. However, the existing corrugated hose laying method usually adopts the construction method of embedding it in the runway structure. This method exposes the following main problems in actual use:

[0005] 1. Corrugated hose is easy to be deformed or damaged under pressure: corrugated hose is usually embedded in water stable layer or base layer, and water stable layer is mainly composed of rigid materials such as cement mortar. Under the action of construction pressure or runway heavy load, corrugated hose may be deformed or damaged due to stress concentration. In addition, due to the difference in thermal expansion coefficient between cement mortar and corrugated hose (plastic material), long-term temperature change will also cause stress concentration, and further lead to damage of corrugated hose or material delamination. Damaged corrugated hose will cause cable exposure, reduce the reliability of sensor, and even cause signal transmission interruption.

[0006] 2. Poor corrosion and sealing performance: the corrugated hose embedded in water stable layer is easily affected by the cracks generated after the cement mortar is solidified, and has sealing performance problem. When cracks occur, water penetrates around the corrugated hose, and erodes the communication cable in the pipe over time, resulting in cable damage or pipe sealing failure.

[0007] 3. Maintenance difficulty: The existing layout method of corrugated hose lacks effective isolation from the water stable layer, and when the hose needs to be repaired or replaced, it often needs to be excavated destructively, increasing the difficulty and cost of maintenance.

[0008] 4. Impact on runway base stability: Directly grooving corrugated hose in the runway structure can damage the integrity of the cement gravel base, weaken the long-term stability and carrying capacity of the runway structure, and reduce the service life of the runway.

[0009] The above problems show that the existing corrugated hose layout method still has shortcomings in reliability, durability and maintenance convenience, and an anti-pressure and moisture-proof installation structure for a foreign object detection system for an airport runway is needed to solve the key problems of hose protection, improved sealing performance and maintenance of runway structure integrity. Utility model content

[0010] The utility model provides an anti-pressure and moisture-proof installation structure for a foreign object detection system for an airport runway, which solves the problems of easy deformation or damage of corrugated hose, poor corrosion and sealing performance, difficult maintenance and large impact on the stability of the runway base in the prior art. By optimizing the layout position of the channel and the internal structure design, the protection performance, system sealing performance and overall reliability of the corrugated hose are improved, and the integrity maintenance of the runway structure and the convenient maintenance of the installation structure are realized.

[0011] The utility model provides an anti-pressure and moisture-proof installation structure for a foreign object detection system for an airport runway, which solves the problems of easy deformation or damage of corrugated hose, poor corrosion and sealing performance, difficult maintenance and large impact on the stability of the runway base in the prior art. By optimizing the layout position of the channel and the internal structure design, the protection performance, system sealing performance and overall reliability of the corrugated hose are improved, and the integrity maintenance of the runway structure and the convenient maintenance of the installation structure are realized.

[0012] The moisture barrier block is located at the bottom of the channel, and the top of the moisture barrier block is designed with an arc groove matched with the corrugated hose;

[0013] The isolation plate is located above the moisture barrier block and is attached to the top surface of the moisture barrier block, used to close the arc groove and close the corrugated hose in the arc groove, and at the same time, uniformly transmit the load to protect the corrugated hose from direct extrusion;

[0014] The water stable layer is located above the isolation plate;

[0015] The expansion joint plate is arranged at the top of the water stable layer;

[0016] The joint filler is filled in the gap between the expansion joint plate and the cement surface layer;

[0017] The both ends of the channel are provided with installation holes of runway foreign object detector and detection host, and the bottom of the hole is communicated with the arc groove at the bottom of the channel through the hole; the corrugated hose is embedded in the arc groove of the moisture barrier block, and connected with the runway foreign object detector and the detection host through the opening at the bottom of the channel.

[0018] In the preferred implementation, further, the moisture barrier block adopts a modular design, and the joint surface of adjacent moisture barrier blocks is provided with a clamping groove.

[0019] In the preferred implementation, further, the top of the water stable layer is flush with the top of the cement macadam base of the runway.

[0020] In the preferred implementation, further, the top of the joint filler is flush with the cement surface layer.

[0021] In the preferred implementation, further, the top surface of the isolation plate is provided with an anti-skid texture.

[0022] In the preferred implementation, further, the connection between the corrugated hose and the hole is filled with sealant.

[0023] In the preferred implementation, further, the expansion joint plate is made of elastic rubber plate or polyethylene closed-cell foam plate.

[0024] In the preferred implementation, further, the surface of the moisture barrier block is coated with a polyurethane coating or a moisture-proof epoxy resin coating.

[0025] The beneficial effects of the utility model are:

[0026] Firstly, the utility model improves the protection performance of the corrugated hose and the reliability of system installation by arranging a channel in the runway shoulder area of the airport runway and sequentially arranging a moisture barrier block, an isolation plate, a water stable layer, an expansion joint plate and a joint filler in the channel. The circular groove design of the moisture barrier block can effectively fix the corrugated hose, and the isolation plate provides uniform load distribution to prevent the corrugated hose from being directly extruded, deformed or damaged. The sealing structure of the moisture barrier block and the isolation plate enhances the corrosion resistance and avoids the corrosion of water to the cable. At the same time, the channel is arranged in the runway shoulder area to avoid damaging the main structure of the runway and maintain the stability of the runway base to prolong the service life of the runway. In addition, the installation structure is convenient for later maintenance and hose replacement without the need for destructive excavation, thereby reducing the maintenance cost.

[0027] Secondly, in the preferred implementation, the utility model adopts a modular design of the moisture barrier block, and the joint surface of adjacent moisture barrier blocks is provided with a clamping groove to effectively improve the convenience of installation and the stability of the structure. The modular design facilitates the quick assembly and disassembly of the moisture barrier block, simplifies the construction process, shortens the construction period, and ensures the close connection between the moisture barrier blocks through the clamping groove design to avoid the decline in sealing performance and the weakening of the protection effect of the corrugated hose due to loosening or displacement. In addition, the modular design also facilitates the replacement and maintenance of individual moisture barrier blocks without the need to disassemble the entire structure, thereby further reducing the maintenance cost.

[0028] Third, in the preferred implementation, the water-stable layer top of the utility model is flush with the top of the runway cement macadam base, and the top of the joint filler is flush with the cement surface, effectively ensuring the flatness of the overall structure of the runway and avoiding the impact of height differences on the load-bearing performance and safety of the runway.

[0029] Fourth, in the preferred implementation, the top surface of the isolation plate of the utility model is provided with anti-skid texture, effectively enhancing the friction force with the upper structure and preventing structural layer slippage during construction.

[0030] Fifth, in the preferred implementation, the utility model fills sealant at the connection between the corrugated hose and the hole, enhancing the sealing performance of the connection part and preventing moisture or impurities from penetrating in; the expansion joint plate is made of elastic rubber plate or polyethylene closed-cell foam plate, which not only effectively absorbs the thermal expansion and contraction stress of the runway structure, but also further improves the flexibility and integrity of the structure; in addition, the surface of the moisture barrier block is coated with a polyurethane coating or a moisture-proof epoxy resin coating, enhancing the moisture-proof performance of the moisture barrier block. BRIEF DESCRIPTION OF DRAWINGS

[0031] Fig. 1 is the trench profile schematic view of the foreign object detection system pressure-resistant and moisture-proof installation structure for the airport runway of the embodiment of the utility model;

[0032] Fig. 2 is the top view schematic view of the foreign object detection system pressure-resistant and moisture-proof installation structure for the airport runway of the embodiment of the utility model.

[0033] Among them, 1-cement macadam base; 2-cement surface layer; 3-trench; 4-corrugated hose; 5-moisture barrier block; 6-isolation plate; 7-water-stable layer; 8-expansion joint plate; 9-joint filler; 10-runway foreign object detector; 11-detection host. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail in conjunction with the drawings and embodiments.

[0035] In the description of the present application, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more than two, unless otherwise explicitly limited. The terms "installation", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0037] In the description of the present application, the description of the terms "one embodiment / way", "some embodiments / ways", "specific embodiments / ways" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / way or example are included in at least one embodiment / way or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments / ways or examples in a suitable manner.

[0038] Embodiment 1

[0039] As shown in the description accompanying drawings Figs. 1-2 The utility model provides a kind of foreign matter detection system pressure-resistant moisture-proof installation structure for airport runway, to optimize the performance such as pressure resistance, protection, moisture-proof and maintenance convenience of corrugated hose in the process of airport runway layout. The installation structure is designed in the shoulder position of the both sides of airport runway, by spacing a plurality of runway foreign matter detectors 10, the accurate detection of runway foreign matter is realized. Each runway foreign matter detector 10 is connected to detection host 11 by communication cable, and the communication cable is embedded in the shoulder interior by the installation structure of the utility model.

[0040] The shoulder area of airport runway includes cement surface layer 2 and cement macadam base layer 1 from surface inward in sequence. The installation structure of the utility model includes channel 3 and function layer arranged from bottom to top of channel 3, and function layer is specifically moisture barrier block 5, isolation plate 6, water stable layer 7, expansion joint plate 8 and joint filler 9.

[0041] The channel 3 is used to provide a laying space for the communication cable and corrugated hose, and to bear the structural components. The depth of the channel 3 penetrates through the cement surface layer 2 and into the cement macadam base 1, providing a stable embedded foundation for the entire structure. The moisture barrier block 5 is used to isolate underground moisture and protect the corrugated hose 1 from moisture erosion, while providing support for the bottom layer of the structure. The moisture barrier block 5 closely fits the bottom and inner wall of the channel 3, and the top is designed with a circular arc groove matching the shape of the corrugated hose 4. The size of the circular arc groove is slightly larger than the diameter of the corrugated hose, and the depth is not less than the diameter of the corrugated hose, ensuring that the corrugated hose is not squeezed by external force when placed. The isolation plate 6 acts as a load-bearing layer, evenly transmitting the pressure of the water-stable layer, expansion joint plate and joint filler to the moisture barrier block, protecting the corrugated hose from direct impact of construction and operating loads. The isolation plate 6 is attached to the top of the moisture barrier block 5, forming a tight contact. The water-stable layer 7 is used to improve the overall stability of the installation structure, consistent with the runway base. The water-stable layer 7 is located above the isolation plate 6, and the top is at the same level as the top of the cement macadam base 1, ensuring the integrity of the structure. The expansion joint plate 8 is used to absorb the thermal expansion and contraction deformation of the cement surface layer, preventing the occurrence of structural cracks. The expansion joint plate 8 is located on the top of the water-stable layer, and a gap is reserved between the top surface and the top surface of the cement surface layer 2 for filling the joint filler 9. The joint filler 9 is used to fill the gap above the expansion joint plate, enhancing the sealing and waterproof performance of the structure. The joint filler 9 is placed in the pre-set gap on the top of the expansion joint plate 8, flush with the top surface of the cement surface layer 2.

[0042] In this embodiment, the depth of the channel 3 is 20-30 cm, and the width is 5-10 cm (determined according to the diameter of the corrugated hose 1 and the width of the moisture barrier block 5). After the channel 3 is excavated, it is lined with C25 grade concrete on all four sides to enhance the durability and structural stability of the channel. A layer of plain concrete cushion about 3-5 cm thick can also be laid at the bottom of the channel 3 to ensure the stable placement of the moisture barrier block.

[0043] In this embodiment, the moisture barrier block 5 is installed by on-site splicing in blocks, each block being 50 cm long, the same width as the channel 3 (5-10 cm), and 3-5 cm thick. The circular arc groove matches the outer diameter of the corrugated hose, and the depth is slightly larger than 5% of the diameter of the corrugated hose 1, which is 2-5 cm in diameter (determined according to engineering needs). The moisture barrier block 5 is made of high-strength concrete (C35 grade), and the surface is coated with moisture-proof epoxy resin to enhance moisture-proof performance. In humid areas, high-molecular composite materials (such as polyurethane reinforced board) can be used instead of concrete to further improve durability. During construction, the moisture barrier block 5 is laid on the plain concrete cushion of the channel 3 to ensure that it closely fits the bottom and inner wall of the channel. Adhesive is used to fix the splicing interface between the moisture barrier blocks, forming a continuous moisture-proof foundation.

[0044] In this embodiment, the thickness of the isolation plate 6 is 1-2 cm; the length is 100 cm, which can reduce the lap joint points; the width is consistent with the channel 3. The isolation plate 6 is made of reinforced composite material (such as glass fiber reinforced plastic, GFRP) or steel fiber reinforced concrete plate, which has high rigidity and elasticity. During construction, the isolation plate 6 is laid on the top of the moisture-proof block 5, and the two ends are close to the inner wall of the channel 3. The lap joint method is used for laying, and the lap joint length of each isolation plate 6 is not less than 5 cm. Epoxy adhesive is applied at the lap joint to ensure that the joint is smooth and firm.

[0045] In this embodiment, the thickness of the water stable layer 7 is 5-8 cm, and the top surface is flush with the top of the cement gravel base 1. The material uses cement mortar with a ratio of 1:2.5 (1 part cement, 2.5 parts sand), and the water-cement ratio is controlled between 0.45-0.5 to ensure construction performance. The sand is medium-coarse sand (particle size 2-4 mm), and the clay content is less than 3%. The cement is ordinary portland cement (strength grade 42.5). During construction, 5%-10% of high molecular waterproof agent can be added to improve the crack resistance and durability of the water stable layer. The cement mortar is poured in layers on the top of the isolation plate, and each layer is not more than 4 cm thick. After pouring, the water stable layer surface is smoothed with a straight edge, flush with the top of the cement gravel base.

[0046] In this embodiment, the expansion joint plate 8 is made of elastic rubber plate or polyethylene closed-cell foam plate, with a thickness of 1-2 cm and a width consistent with the width of the channel 3. The caulking material 9 is made of polyurethane sealant or modified asphalt material, with a thickness of 2-3 cm. The surface of the caulking material is flush with the cement surface layer 2 through the construction scraper to ensure the sealing effect.

[0047] Holes are provided at both ends of the channel 3 for the runway foreign object detector 10 and the detection host 11. The bottom side wall of each mounting hole is matched with the depth of the channel 3 and the layout position of the corrugated hose 4 by digging holes in the bottom side wall of the channel 3, which is used to connect the communication cable inside the corrugated hose 4 to the runway foreign object detector 10 and the detection host 11. Specifically, the depth of the hole extends to the bottom of the channel, keeping consistent with the maximum depth of the channel (20-30 cm) to ensure smooth transition of the communication cable layout. The communication cable is laid through the corrugated hose, and the two ends of the cable are respectively pulled out from the outlet of the corrugated hose and enter the hole through the dug hole, and are connected to the runway foreign object detector and the detection host. Sealing material (such as polyurethane sealant) is used to fill the connection between the corrugated hose and the hole to ensure the waterproof performance of the connection part.

[0048] With the structure of the present embodiment, the combination of the moisture barrier block 5 and the isolation plate 6 effectively disperses the load of the water stable layer and the cement surface layer, and uniformly transmits the pressure to the bottom of the channel. The isolation plate is made of reinforced composite material or steel fiber reinforced concrete, which has high strength and rigidity, and can withstand the dynamic load during the operation of vehicles and aircrafts above the runway, thereby protecting the corrugated hose from direct extrusion. The channel 3 is lined with C25 grade concrete, and a plain concrete cushion layer is additionally provided to further enhance the compression resistance of the overall structure.

[0049] The moisture barrier block 5 closely adheres to the bottom and inner wall of the channel, effectively isolating underground moisture and preventing moisture from eroding the corrugated hose and communication cable. The surface of the moisture barrier block is coated with moisture-proof epoxy resin or made of high-molecular composite material (such as polyurethane reinforced board), which exhibits excellent moisture-proof performance in humid areas. The connection between the corrugated hose and the hole is filled with polyurethane sealant to ensure that the connection between the hole and the communication cable is completely waterproof.

[0050] The joint filler 9 cooperates with the expansion joint plate 8 to absorb displacement deformation during thermal expansion and contraction of the runway, thereby avoiding the generation of cracks. The expansion joint plate and the joint filler are arranged between the cement surface layer and the channel, and the sealing performance of the entire structure is enhanced by the elastic rubber plate and the high-performance sealant.

[0051] The moisture barrier block, the isolation plate, the water stable layer, and the expansion joint plate adopt a modular layered structure, which facilitates later maintenance and repair. The communication cable is arranged in the corrugated hose and directly connected to the detector 10 and the detection host 11 through the hole opening, thereby reducing the risk of line exposure and facilitating replacement or repair.

[0052] The corrugated hose 4 is embedded in the channel through the circular arc groove of the moisture barrier block, thereby avoiding direct contact of the communication cable with the underground environment and reducing the risk of damage and corrosion of the cable by external forces.

[0053] Embodiment 2

[0054] On the basis of embodiment 1, the moisture barrier block 5 adopts a modular design, and the joint groove of the joint surface of adjacent moisture barrier blocks 5 is used to connect adjacent moisture barrier blocks 5 to form a continuous and stable support. In another implementation manner, the joint surface of adjacent moisture barrier blocks 5 can adopt a planar design and be connected by an adhesive, thereby reducing the manufacturing cost of the moisture barrier block 5. The surface of the moisture barrier block 5 is covered with a corrosion-resistant coating (such as a polyurethane coating), which enhances the moisture-proof performance and improves the durability.

[0055] The top surface of the isolation plate 6 is provided with an anti-skid design, which is used to prevent displacement during the construction of the cement layer in special construction environments (such as rainy or cold areas).

[0056] Embodiment 3

[0057] The construction process of the foreign object detection system pressure-resistant and moisture-proof installation structure for the airport runway of the present utility model is as follows:

[0058] First, according to the design drawings, determine the groove excavation range at the specified position of the airport shoulder, and ensure that the groove arrangement meets the design requirements. Use the excavation equipment to excavate the groove according to the design size, the groove depth is 20-30 cm, and the width is 5-10 cm. Ensure that the groove bottom is in contact with the cement macadam base and is flat, without loose particles and water accumulation. Use C25 grade concrete to line the groove around, to enhance the durability and structural stability of the groove. Lay a layer of 3-5 cm thick plain concrete cushion on the bottom of the groove as a stable support foundation for the moisture barrier block. After the concrete cushion hardens, check the surface flatness and confirm that it is correct before proceeding to the next step of construction.

[0059] According to the size of the groove, prepare moisture barrier blocks 5 with a length of 50 cm, a width consistent with the groove (5-10 cm), and a thickness of 3-5 cm. Lay the moisture barrier blocks continuously on the plain concrete cushion, use adhesive to fix the interface between the moisture barrier blocks, ensure that there is no gap between each moisture barrier block, and form a continuous moisture-proof foundation.

[0060] Embed the corrugated hose 4 (outer diameter 2-5 cm) into the circular arc groove on the top of the moisture barrier block, ensure that the corrugated hose fits tightly with the circular arc groove. Check if the position of the corrugated hose after embedding is centered and stable. The two ends of the corrugated hose extend to the installation holes at both ends of the groove. At the bottom and side wall of the installation hole, the communication cable of the corrugated hose is connected to the runway foreign object detector 10 and the detection host 11 through the method of hole digging. Use waterproof sealing material (such as polyurethane sealant) to fill the connection between the corrugated hose and the hole, to ensure the waterproof performance of the interface.

[0061] Place the isolation plate 6 with a thickness of 1-2 cm, a length of 100 cm, and a width consistent with the groove (5-10 cm) on the top of the moisture barrier block to close the corrugated hose. Fix the isolation plate on the moisture barrier block by direct contact, slot insertion or bonding, and ensure its stability. Adjacent isolation plates are continuously laid in a lap joint manner, and epoxy adhesive is applied at the lap joint to ensure that the joint is smooth and firm.

[0062] Lay the water stable layer 7 on the top of the isolation plate, use cement mortar with a ratio of 1:2.5 (cement:sand), and control the water-cement ratio to 0.45-0.5. The water stable layer is poured in layers, with each layer not exceeding 4 cm in thickness, and the final thickness is 5-8 cm. Install the expansion joint plate 8 on the cement surface layer at the designed position, the thickness of the expansion joint plate is 1-2 cm, the width is consistent with the groove (5-10 cm), and the expansion joint plate is filled with polyurethane sealant or modified asphalt joint filler with a thickness of 2-3 cm on both sides. Use a construction scraper to smooth the joint filler to the level of the cement surface, ensuring airtight effect.

[0063] The runway foreign object detector 10 and the detection host 11 are respectively installed at the mounting holes at both ends of the channel, and the detection equipment is connected firmly with the communication cable in the corrugated hose. The detection equipment is started, the system function is debugged, and it is ensured that the runway foreign object detection system can normally operate.

[0064] The utility model discloses a foreign object detection system pressure -resistant dampproofing mounting structure for airport runway, through being arranged channel in runway shoulder area, and setting up dampproofing block, isolation board, water stable layer, expansion joint board and joint filler etc., have promoted the protection performance and system reliability of corrugated hose. Dampproofing block fixes corrugated hose, and isolation board evenly disperses load and prevents deformation, and sealing structure enhances anticorrosive performance, and channel arrangement avoids destroying runway main body structure, maintains basic level stability and prolongs runway life. Modularization dampproofing block design simplifies construction process, and it is convenient for quick splicing and maintenance replacement, and reduces maintenance cost. Water stable layer is flush with basic level, and joint filler is flush with surface layer, guarantees runway structure flatness and bearing safety. Isolation board antiskid texture prevents slip, and sealant and dampproofing coating enhance sealing and protection performance, and expansion joint board absorbs thermal expansion and cold shrink stress, improves structure flexibility and durability, and comprehensively guarantees the efficient operation and long -term stability of system.

[0065] The above-mentioned is only the embodiment of the utility model, and the well-known specific structure and characteristics in the scheme are not described too much. For those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point, the embodiment should be regarded as exemplary, and is non-restrictive, and the scope of the utility model is defined by the appended claims instead of the above-mentioned description, and therefore all changes falling in the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claim.

Claims

1. A pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways, comprising a channel (3) and a corrugated hose (4), characterized in that, The channel (3) is located in the shoulder area of ​​the airport runway, passes through the cement surface layer (2) of the runway and extends into the cement crushed stone base layer (1). The channel (3) is provided with the following in sequence: Moisture barrier (5) is located at the bottom of channel (3), and its top is designed with an arc groove to match the corrugated hose (4); The isolation plate (6) is located above the moisture barrier block (5) and is attached to the top surface of the moisture barrier block (5). It is used to close the arc groove and enclose the corrugated hose (4) in the arc groove, while uniformly transmitting the load to protect the corrugated hose (4) from direct compression. The water-stabilized layer (7) is located above the isolation plate (6); Expansion joint plate (8) is installed on top of water-stabilized layer (7); Joint filler (9) is used to fill the gap between the expansion joint board (8) and the cement surface layer (2); The two ends of the channel (3) are provided with mounting holes for the runway foreign object detector (10) and the detection host (11). The bottom of the hole is connected to the arc groove at the bottom of the channel (3) through a hole. The corrugated hose (4) is embedded in the arc groove of the moisture barrier block (5) and is connected to the runway foreign object detector (10) and the detection host (11) through the opening at the bottom of the channel (3).

2. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The moisture barrier block (5) adopts a modular design, and the joint surface of adjacent moisture barrier blocks (5) is provided with a slot.

3. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The top of the water-stabilized layer (7) is flush with the top of the cement-gravel base layer (1) of the runway.

4. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The top of the sealant (9) is flush with the cement surface layer (2).

5. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The top surface of the isolation plate (6) is provided with an anti-slip texture.

6. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The connection between the corrugated hose (4) and the hole is filled with sealant.

7. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The expansion joint board (8) is made of elastic rubber sheet or polyethylene closed-cell foam board.

8. The pressure-resistant and moisture-proof installation structure for a foreign object detection system for airport runways according to claim 1, characterized in that, The surface of the moisture barrier block (5) is coated with a polyurethane coating or a moisture-proof epoxy resin coating.

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