Airport navigational light secondary cable laying method based on seam line inserting

Abstract

The invention discloses an airport navigation-aid light secondary cable laying method based on joint line inserting, and relates to the technical field of airport pavement navigation-aid light construction. Comprising the following steps: S1, selecting a secondary cable laying path: determining a nearest seam as the secondary cable laying path according to a navigation-aid light mounting position and a light box connecting position; s2, the joints and the pavement slabs are treated, specifically, the joints on the selected paths are subjected to joint expansion treatment; an existing pavement joint is preferentially utilized and expanded to serve as a cable channel, only necessary and short local saw joints are formed in the position where a lamp is connected, the risk of damage to a pavement structure is reduced, the hidden danger of damage caused by a small-size pavement slab under the load of an airplane is avoided, meanwhile, expensive special drilling equipment does not need to be input, and the cost is reduced. The thickness of grouting repair is small, a sealing material can also be commonly used with an existing pavement joint maintenance material, the material consumption and the cost are effectively saved, the cost is lower, and construction is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of airport pavement aid to navigation light construction technology, and particularly relates to an airport aid to navigation light secondary cable laying method based on joint embedding. BACKGROUND

[0002] The airport aid to navigation light is a visual aid to navigation device for guiding the direction, position and height of the aircraft on the pavement, which can improve the visibility and safety of the airport. At present, with the continuous increase of air traffic, the airport becomes more and more busy, and higher requirements are put forward for the safety of the airport flight area. Therefore, various airports realize the upgrading of the airport aid to navigation light by encrypting the aid to navigation light of the flight area and replacing the aid to navigation light type. However, in the upgrading process, the main difficulty is the secondary cable laying problem of the aid to navigation light.

[0003] There are mainly two kinds of existing secondary cable laying methods. One is the method of directly sawing the pavement to lay the secondary cable given by the International Civil Aviation Organization (ICAO) in the second edition of the airport design manual. This method can directly saw the pavement board from the pavement shoulder to the position of the aid to navigation light, and the width of the sawing joint is generally not less than 10mm, and the depth is not less than 20mm. This construction method has clear goal, simple operation, and can quickly complete the laying of the secondary cable of the aid to navigation light, but this method causes great damage to the pavement, especially when the position of the aid to navigation light is close to the horizontal joint, small size pavement board will be produced, which is easy to be damaged under the action of the moving load of the aircraft, thereby causing safety accidents.

[0004] The other is a pavement aid to navigation light reconstruction method based on horizontal directional drilling in the civil airport specification of our country. This method mainly uses horizontal directional drilling to drill, ream and pipe back in the direct below of the pavement. In order not to damage the pavement structure, the drilling position is generally selected in the soil layer, but for the pavement structure with overlay, the drilling depth will reach more than 1m, which makes the installation of the aid to navigation light in the later stage difficult, and the drill core needs to drill through the entire pavement structure, and the pipeline position with large depth also causes certain difficulty for threading. The preparation work before the horizontal directional drilling construction is relatively tedious, a large number of construction personnel are needed to operate at the same time, the drilling speed is slow, and for the large number of light upgrading work of the airport, the construction efficiency of this method is low, and the construction cost of this method is also relatively high. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art, and to provide an airport aid to navigation light secondary cable laying method based on joint embedding.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: A method for laying secondary cable of airport approach light based on joint stitching, comprising the following steps: S1: Selecting the secondary cable laying path: according to the approach light installation position and the light box position, determine the nearest joint as the secondary cable laying path; S2: Processing the joint and the pavement slab: expand the joint on the selected path and saw the joint to ensure the continuity of the path; S3: Processing the path corner: round the corner of the secondary cable laying path to meet the cable bending requirements and avoid wear and tear; S4: Laying the secondary cable: after cleaning the joint and the sawn joint, install the backing strip at the bottom of the joint, and then lay the secondary cable S5: Sealing treatment: seal the laid joint and sawn joint, including grouting repair and applying sealing material, to protect the cable and facilitate subsequent maintenance.

[0007] Preferably: the width of the joint expansion treatment in S2 is 12mm.

[0008] Further: the depth of the joint expansion treatment in S2 is 80mm.

[0009] Further: the width of the sawn joint treatment in S2 is consistent with the width of the joint expansion treatment.

[0010] As a preferred scheme of the present application: the depth of the sawn joint treatment in S2 is determined according to the wire entry mode of the approach light holder, and when the holder is a side wire entry mode, the depth of the sawn joint treatment is 140mm.

[0011] As a further scheme of the present application: the diameter of the rounded corner treatment in S3 is determined based on the diameter of the secondary cable, and is not less than 10 times the diameter of the cable.

[0012] As a further scheme of the present application: the thickness of the grouting treatment in S5 is 80mm.

[0013] On the basis of the foregoing scheme: the thickness of the sealing material applied in S5 is 30mm.

[0014] On the basis of the foregoing scheme: backing strips are laid on both sides of the secondary cable.

[0015] The beneficial effects of the present application are: 1. A method for laying secondary cable of airport approach light based on joint embedding line, by preferentially using and expanding the existing pavement joint as cable channel, only locally sawing joint at the position connecting the light fixture as necessary, the length is very short, the damage risk to the pavement structure is reduced, the damage hidden danger caused by small size pavement panel under the aircraft load is avoided, at the same time, the expensive special drilling equipment is not needed, the thickness of grouting repair is small, the sealing material can be used with the existing pavement joint maintenance material, the material consumption and cost are effectively saved, the cost is lower and the construction is convenient.

[0016] 2. A method for laying secondary cable of airport approach light based on joint embedding line, by using joint path, the cable laying trend is optimized, the dependence on complex heavy equipment is reduced, the preparation work before construction is relatively simple, the operation pit and slurry pool are not needed to be excavated, the required personnel are less, it is suitable for the busy operation environment of airport, the rapid construction can be realized, and the efficiency requirement of large number of light upgrading tasks is met.

[0017] 3. A method for laying secondary cable of airport approach light based on joint embedding line, by using backing strip below and above the cable for protection, and grouting and sealing treatment on the surface layer, when the cable needs to be repaired or replaced subsequently, the operation can be relatively easily carried out, the maintenance difficulty caused by deep burying or complete sealing of the cable is avoided, the maintainability of the approach light system is enhanced, and the long-term operation reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application. In the drawings: Figure 1 is a laying method flowchart of a method for laying secondary cable of airport approach light based on joint embedding line proposed by the present application; Figure 2 is a secondary cable laying path diagram of a method for laying secondary cable of airport approach light based on joint embedding line proposed by the present application; Figure 3 is a rounded corner plan view of a corner on a secondary cable path of a method for laying secondary cable of airport approach light based on joint embedding line proposed by the present application; Figure 4 is a rounded corner elevation view of a corner on a secondary cable path of a method for laying secondary cable of airport approach light based on joint embedding line proposed by the present application; Figure 5 is a cross-sectional view of a sawing joint position of a method for laying secondary cable of airport approach light based on joint embedding line proposed by the present application; Figure 6 is a sectional view of a joint position of a joint stitching-based airport navigation light secondary cable laying method. DETAILED DESCRIPTION

[0019] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain attachment relationship or connection relationship in some cases. For persons skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0023] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0025] Example 1: A method for laying secondary cable of airport approach light based on joint stitching, as shown in Figure 1 Figure 6 The method comprises the following steps: S1: Select a suitable secondary cable laying path according to the position of the approach light, and prefer to construct in the air temperature above 5℃, avoid operating in rainy days or when there is moisture in the joint, as shown in Figure 2 Firstly, determine the specific position of the approach light required to be installed in the airport light upgrade, then determine the nearest light box from the position of the approach light, then select the joint nearest to the two according to the installation position of the approach light and the position of the light box, and determine the joint stitching path nearest to the light box as the secondary cable laying path.

[0026] S2: Expand the joint selected as the secondary cable laying path in S1, and saw the joint of the pavement panel; Preferably, the expansion width of the joint selected as the secondary cable laying path is 12mm, and the depth is 80mm, which is convenient for the installation of the secondary cable; When sawing the joint of the pavement on the secondary cable laying path, the sawing width is consistent with the expansion width of the joint; the sawing depth is determined according to the depth of the side wire or bottom wire of the approach light holder, preferably, the holder of the approach light here is a side wire type, and the side wire depth is 110mm, in order to facilitate subsequent installation, the sawing depth is selected as 140mm, and the sawing width is 12mm; S3: Round the corner of the joint and saw joint of the secondary cable laying path; Round the corner of the joint and saw joint of the secondary cable laying path; S4: Lay the secondary cable in the joint and saw joint of the secondary cable laying path after processing; Firstly, use a high-pressure water gun and a joint cleaner to clean the concrete debris and other sundries in the joint and saw joint before laying, and ensure that the joint is dry and clean before laying the cable, in order to protect the secondary cable, a backing strip should be installed at the bottom of the joint and saw joint, and then the secondary cable is laid above the backing strip; S5: Seal the joint and saw joint on the secondary cable laying path; ​After the secondary cable laying installation is completed, the sawn joint position of the secondary cable laying path is repaired and grouted, in order to prevent the secondary cable from being sealed by the grouting material, facilitate subsequent maintenance and replacement, first install a backing strip above it, and then use high-strength grouting material for repair treatment, and the preferred grouting thickness is 80mm; And the joint position of the secondary cable laying path is sealed, in order to facilitate the subsequent maintenance and replacement of the cable, first install a backing strip above the secondary cable, and then use joint sealing material for sealing treatment, and the preferred thickness of the joint sealing material is 30mm.

[0027] In the method, only the joint is expanded and partially sawn, and the cutting length is short, which greatly protects the pavement integrity, and the joint and sawn joint treatment only involves the surface layer, avoiding deep cutting, reducing the pavement cutting area, reducing the risk of pavement structure damage, avoiding the disadvantage of direct sawing method which damages the pavement structure, thereby ensuring the operation safety of the airport flight area; At the same time, the direct sawing method has a shallow sawn joint depth, which cannot adapt to the incoming line requirement of different lamp holders, and the method can flexibly determine the sawn joint depth according to the lamp holder side incoming line or bottom incoming line depth and meet the cable bending radius through the rounded corner treatment to avoid wear and tear, and through customized treatment, the precision and durability of cable laying are improved, which is suitable for various light upgrading scenes.

[0028] And the method directly uses joint inlaid lines, which can optimize path selection according to the position of the light box, simplify the construction steps, and does not require complex equipment and fewer personnel; compared with the horizontal directional drilling method which needs to excavate an operation pit and a mud pool, has a large drilling depth, and has complicated preparation work and slow drilling speed, the method has the advantages of simple construction process, high efficiency and suitability for rapid transformation in a busy airport environment.

[0029] And the method only needs a sawing machine, grouting material equipment and other conventional tools, the grouting thickness is small, the material consumption is saved, and the same material as the existing pavement joint can be used for sealing treatment on the joint surface, and the construction and maintenance cost is lower; compared with the horizontal directional drilling method which needs to drill, ream and pipe back, the material and time cost is high, the method has the advantages of low-cost transformation and meets the economic requirements of the airport; At the same time, in the horizontal directional drilling method, the cable is deeply buried, which is difficult to maintain, in the method, the cable is laid in the joint and sawn joint, and the backing strip is used for protection to facilitate subsequent maintenance and replacement, which enhances the maintainability of the cable and improves the long-term operation reliability of the navigation light system.

[0030] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for laying secondary cables for airport navigation lights based on joint embedding, comprising the following steps: S1: Select the secondary cable laying path: Based on the installation location of the navigation lights and the location of the light box, determine the nearest joint as the secondary cable laying path; S2: Treat the joints and pavement panels: widen the joints on the selected path and saw the pavement panels to ensure path continuity. S3: Handling route corners: Round off the corners at the corners of the secondary cable laying route to meet cable bending requirements and avoid wear; S4: Laying the secondary cable: After cleaning the joints and saw cuts, install a backing strip at the bottom of the joint, and then lay the secondary cable. S5: Sealing treatment: Seal the joints and saw cuts after the cable has been laid, including grouting repair and applying sealing material to protect the cable and facilitate subsequent maintenance.

2. The method for laying secondary cables for airport navigation lights based on joint embedding as described in claim 1, characterized in that, The width of the expansion joint in S2 is 12mm.

3. The method for laying secondary cables for airport navigation lights based on joint embedding as described in claim 2, characterized in that, The depth of the expansion treatment in S2 is 80mm.

4. The method for laying secondary cables for airport navigation lights based on joint embedding as described in claim 3, characterized in that, The width of the saw kerf treatment in S2 is the same as the width of the kerf widening treatment.

5. The method for laying secondary cables for airport navigation lights based on joint embedding according to claim 4, characterized in that, The depth of the sawing kerf in S2 is determined according to the wiring method of the navigation light fixture. When the fixture is a side-entry type, the depth of the sawing kerf is 140mm.

6. The method for laying secondary cables for airport navigation lights based on joint embedding according to claim 1, characterized in that, The diameter of the rounded corner treatment in S3 is determined based on the diameter of the secondary cable and is not less than 10 times the cable diameter.

7. The method for laying secondary cables for airport navigation lights based on joint embedding as described in claim 1, characterized in that, The thickness of the grouting treatment in S5 is 80mm.

8. The method for laying secondary cables for airport navigation lights based on joint embedding according to claim 7, characterized in that, The thickness of the sealing material applied in S5 is 30 mm.

9. A method for laying secondary cables for airport navigation lights based on joint embedding, as described in claim 1, characterized in that, Backing strips are laid on both sides of the secondary cable.

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