Airport foundation drainage system

Abstract

The embodiment of the utility model provides an airport foundation drainage system. The airport foundation drainage system comprises a side slope filling body, a blind ditch, a communicating pipe, an afflux pipe and a discharge pipe. A side slope filling body is arranged on the edge of the airport foundation, a blind ditch is arranged in the side slope filling body, and permeable geotextile, a gravel layer and a permeable pipe are sequentially laid in the blind ditch from top to bottom. The communicating pipe is arranged on the permeable pipe, one end of the afflux pipe is communicated with the communicating pipe, the other end of the afflux pipe is communicated with the discharge pipe, the end part of the discharge pipe is communicated with an underground external water body of an airport, and the discharge pipe is arranged below a freezing layer of an airport foundation. It can be understood that water permeating into the airport foundation can be collected in time through the blind ditch, then enters the converging pipe through the permeable pipe, is converged into the discharging pipe through the converging pipe and finally flows into the underground external water body, and therefore the problem that frost heaving and thaw collapse occur due to the fact that water is stored in the airport runway ground is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of airport foundation drainage, and in particular to an airport foundation drainage system. Background Art

[0002] In order to ensure the safety of aircraft takeoff and landing at the airport, the foundation within the airport must maintain a certain degree of stability.

[0003] However, if rainwater or groundwater intrudes into the runway foundation and cannot be drained away in time, as the temperature changes, the airport runway foundation is prone to freezing and thawing due to water accumulation, seriously endangering the safety of aircraft takeoff and landing at the airport. Utility Model Content

[0004] The embodiment of the present application provides an airport foundation drainage system to solve the problem that water seeping into the current airport foundation cannot be drained away in time.

[0005] The embodiment of the present application provides an airport foundation drainage system, including a slope fill body, a blind ditch, a connecting pipe, a confluence pipe and a discharge pipe;

[0006] A slope fill is set at the edge of the airport foundation, in which a blind ditch is laid, and in which a permeable geotextile, a crushed stone layer and a permeable pipe are laid in sequence from top to bottom;

[0007] The connecting pipe is arranged on the permeable pipe, one end of the inlet pipe is connected to the connecting pipe, the other end of the inlet pipe is connected to the discharge pipe, and the inlet pipe is located in the slope filling body;

[0008] The end of the discharge pipe is communicated with an underground external water body of the airport, and the discharge pipe is arranged below the frozen layer of the airport foundation.

[0009] In a feasible implementation, there are multiple blind ditches, which are arranged in sequence from top to bottom, and all of the blind ditches are connected to the discharge pipe through connecting pipes and the confluence pipe.

[0010] In a feasible implementation, an airport foundation drainage system further includes a filter element, and the filter element is disposed in the connecting pipe element.

[0011] In a feasible implementation, the airport foundation drainage system also includes a first inspection well and a first drainage valve. The first inspection well is arranged in the slope fill body, the inlet pipe passes through the first inspection well, the first drainage valve is arranged on the inlet pipe, and the first drainage valve is located in the first inspection well.

[0012] In a feasible implementation, the airport foundation drainage system also includes a second inspection well and a second drainage valve. The second inspection well is arranged below the ground. The discharge pipe passes through the second inspection well. The second drainage valve is arranged on the discharge pipe, and the second drainage valve is located in the second inspection well.

[0013] In a feasible implementation, the airport foundation drainage system also includes a negative pressure generating device, which is connected to the discharge pipe and is disposed in the second inspection well.

[0014] In a feasible implementation, the negative pressure generating device is a negative pressure drainage pump.

[0015] In a feasible implementation, both the inlet pipe and the discharge pipe are hard pipes, and the diameter of the hard pipe is greater than or equal to 200 mm.

[0016] In a feasible implementation, a drainage duckbill valve is provided at the end of the discharge pipe.

[0017] The embodiment of the present application provides an airport foundation drainage system, including a slope filling body, a blind ditch, a connecting pipe, an inlet pipe and a discharge pipe; a slope filling body is provided at the edge of the airport foundation, a blind ditch is arranged in the slope filling body, and a permeable geotextile, a crushed stone layer and a permeable pipe are laid in the blind ditch from top to bottom; the connecting pipe is arranged on the permeable pipe, one end of the inlet pipe is connected to the connecting pipe, and the other end of the inlet pipe is connected to the discharge pipe, the end of the discharge pipe is connected to the underground external water body of the airport, and the discharge pipe is arranged below the frozen layer of the airport foundation. It can be understood that the water that infiltrates into the airport foundation can be collected in time through the blind ditch, and then enter the inlet pipe through the permeable pipe, and then flow into the discharge pipe from the inlet pipe, and finally flow to the underground external water body, thereby avoiding the problem of frost heave and thaw sinking due to water accumulation in the airport runway foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present application and do not constitute improper limitations on the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a structural schematic diagram of an airport foundation drainage system provided by an embodiment of the present application;

[0021] Figure 2 yes Figure 1 A first partial schematic diagram in FIG.

[0022] Figure 3 yes Figure 1 A second partial schematic diagram in FIG.

[0023] Description of reference numerals:

[0024] 100-slope filling body; 200-blind ditch; 300-connecting pipe fittings; 400-inlet pipe; 500-discharge pipe; 600-first inspection well; 700-first drainage valve; 800-second inspection well; 900-second drainage valve; 1000-ground; 1100-underground external water body;

[0025] 210-permeable geotextile; 220-gravel layer; 230-permeable pipe. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0027] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, for example, two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] In order to ensure the safety of aircraft takeoff and landing at the airport, the foundation within the airport must maintain a certain degree of stability.

[0030] However, if rainwater or groundwater intrudes into the runway foundation and cannot be drained away in time, the runway foundation is prone to freeze heave and thaw sinking due to water accumulation as the temperature changes, seriously endangering the safety of aircraft takeoff and landing at the airport. Understandably, this problem is particularly serious in winter, in extremely cold regions, or in areas with large temperature differences.

[0031] In order to solve the above problems, an embodiment of the present application provides an airport foundation drainage system. The solution provided by the embodiment of the present application will be described in detail below in conjunction with the drawings in the specification.

[0032] Figure 1 It is a structural schematic diagram of an airport foundation drainage system provided by an embodiment of the present application; Figure 2 yes Figure 1 A first partial schematic diagram in FIG. Figure 3 yes Figure 1 The second partial schematic diagram in .

[0033] Reference Figures 1 to 3 As shown, an embodiment of the present application provides an airport foundation drainage system, including a slope filling body 100, a blind ditch 200, a connecting pipe 300, a confluence pipe 400 and a discharge pipe 500.

[0034] The edge of the airport foundation is provided with a slope filling body 100 to prevent the airport foundation from collapsing, and a blind ditch 200 is arranged in the slope filling body 100, and a permeable geotextile 210, a crushed stone layer 220 and a permeable pipe 230 are laid in the blind ditch 200 from top to bottom. Due to the presence of the permeable geotextile 210 and the crushed stone layer 220, water in the airport foundation can flow and flow into the permeable pipe 230 through the through hole.

[0035] In addition, the connecting pipe 300 can be a three-way pipe, two interfaces of which are connected to the permeable pipe 230, and the other structure is connected to one end of the inlet pipe 400, the other end of the inlet pipe 400 is connected to the discharge pipe 500, the end of the discharge pipe 500 is connected to the underground external water body 1100 of the airport, and the discharge pipe 500 is arranged below the frozen layer of the airport foundation. The water that penetrates into the airport foundation can be collected in time through the blind ditch 200, and then enter the inlet pipe 400 through the permeable pipe 230, and then flow into the discharge pipe 500 from the inlet pipe 400, and finally flow into the underground external water body 1100, thereby avoiding the problem of frozen heave and thaw sinking due to water accumulation in the airport runway foundation.

[0036] In addition, the inlet pipe 400 is located in the slope filling body 100, and the discharge pipe 500 is located below the frozen layer of the airport foundation, so that the inlet pipe 400 and the discharge pipe 500 will not be blocked by water freezing even in winter, ensuring timely and smooth drainage. This drainage system has a simple structure, is easy to implement, and has a low cost, and can be used for drainage of airport foundations with the threat of freezing.

[0037] For example, both the inlet pipe 400 and the discharge pipe 500 are hard pipes, and the diameter of the hard pipe is greater than or equal to 200 mm. The discharge pipe 500 is laid below the local freezing line of the project, and the thickness of the covering soil is not less than 1.0 m.

[0038] For example, the local freezing line of a certain project is 1.2m below the ground level 1000, and the connection between the discharge pipe 500 and the inlet pipe 400 is located 1.5m below the surface of the slope fill 100; the diameters of the inlet pipe 400 and the discharge pipe 500 are both 200mm, and they are laid 1.2m below the ground level 1000, that is, the cover thickness is 1.2m.

[0039] In some examples, in a possible implementation, a drainage duckbill valve is provided at the end of the discharge pipe 500 .

[0040] Continue to refer to Figure 1 As shown, there are multiple blind ditches 200, which are arranged in sequence from top to bottom, and the multiple blind ditches 200 are connected to the discharge pipe 500 through the connecting pipe 300 and the confluence pipe 400. It can be understood that the multiple blind ditches 200 can ensure that the water infiltrating into the airport foundation is discharged in time.

[0041] In some examples, an airport foundation drainage system further includes a filter element, which is disposed in the connecting pipe 300 to intercept gravel and prevent the gravel from entering and clogging the intake pipe 400 .

[0042] Continue to refer to Figure 2 As shown, the airport foundation drainage system also includes a first inspection well 600 and a first drainage valve 700. The first inspection well 600 is arranged in the slope filling body 100. The inlet pipe 400 passes through the first inspection well 600. The first drainage valve 700 is arranged on the inlet pipe 400, and the first drainage valve 700 is located in the first inspection well 600. The staff can enter the first inspection well 600 to control the opening and closing of the inlet pipe 400 by controlling the first drainage valve 700. In addition, due to the existence of the first inspection well 600, it is convenient to inspect and repair the relevant pipelines.

[0043] Continue to refer to Figure 2 As shown, the airport foundation drainage system also includes a second inspection well 800 and a second drainage valve 900. The second inspection well 800 is arranged below the ground 1000. The discharge pipe 500 passes through the second inspection well 800. The second drainage valve 900 is arranged on the discharge pipe 500, and the second drainage valve 900 is located in the second inspection well 800, so that it is convenient for the staff to enter the second inspection well 800 to control the opening and closing of the discharge pipe 500 by controlling the second drainage valve 900. Similarly, due to the existence of the second inspection well 800, it is convenient to inspect and repair the relevant pipelines.

[0044] In some other examples, the airport foundation drainage system further includes a negative pressure generating device, which is connected to the discharge pipe 500 and is disposed in the second inspection well 800. The negative pressure generating device is used to generate negative pressure in the discharge pipe 500 and the inlet pipe 400, thereby accelerating the discharge of accumulated water in the airport foundation to avoid problems with the airport foundation. Exemplarily, the negative pressure generating device is a negative pressure drainage pump.

[0045] For example, the first drain valve 700 and the second drain valve 900 may be of DN200 and need to be selectively opened and closed according to demand.

[0046] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0047] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An airport foundation drainage system, characterized in that: It comprises a slope filling body (100), a blind ditch (200), a connecting pipe (300), an inlet pipe (400) and a discharge pipe (500); A slope filling body (100) is provided at the edge of the airport foundation, a blind ditch (200) is arranged in the slope filling body (100), and a permeable geotextile (210), a crushed stone layer (220) and a permeable pipe (230) are laid in the blind ditch (200) from top to bottom; The connecting pipe (300) is arranged on the water-permeable pipe (230), one end of the inlet pipe (400) is connected to the connecting pipe (300), the other end of the inlet pipe (400) is connected to the discharge pipe (500), and the inlet pipe (400) is located in the slope filling body (100); The end of the discharge pipe (500) is in communication with an underground external water body (1100) of the airport, and the discharge pipe (500) is arranged below the frozen layer of the airport foundation.

2. The airport foundation drainage system according to claim 1, characterized in that: There are a plurality of blind grooves (200), and the plurality of blind grooves (200) are arranged in sequence from top to bottom. The plurality of blind grooves (200) are connected to the discharge pipe (500) through the connecting pipe (300) and the confluence pipe (400).

3. The airport foundation drainage system according to claim 1, characterized in that: The airport foundation drainage system further comprises a filter element, wherein the filter element is arranged in the connecting pipe element (300).

4. The airport foundation drainage system according to claim 1, characterized in that: The airport foundation drainage system further comprises a first inspection well (600) and a first drainage valve (700); the first inspection well (600) is arranged in the slope filling body (100); the inlet pipe (400) passes through the first inspection well (600); the first drainage valve (700) is arranged on the inlet pipe (400); and the first drainage valve (700) is located in the first inspection well (600).

5. The airport foundation drainage system according to claim 4, characterized in that: The airport foundation drainage system also includes a second inspection well (800) and a second drainage valve (900), wherein the second inspection well (800) is arranged below the ground (1000), the discharge pipe (500) passes through the second inspection well (800), the second drainage valve (900) is arranged on the discharge pipe (500), and the second drainage valve (900) is located in the second inspection well (800).

6. The airport foundation drainage system according to claim 5, characterized in that: The airport foundation drainage system further comprises a negative pressure generating device, the negative pressure generating device is in communication with the discharge pipe (500), and the negative pressure generating device is arranged in the second inspection shaft (800).

7. The airport foundation drainage system according to claim 6, characterized in that: The negative pressure generating device is a negative pressure drainage pump.

8. The airport foundation drainage system according to any one of claims 1 to 7, characterized in that: The inlet pipe (400) and the discharge pipe (500) are both hard pipes, and the diameter of the hard pipe is greater than or equal to 200 mm.

9. The airport foundation drainage system according to any one of claims 1 to 7, characterized in that: A drainage duckbill valve is provided at the end of the discharge pipe (500).

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