CN113186767A - A way foundation structure and airport runway for preventing and control pot cover effect - Google Patents
A way foundation structure and airport runway for preventing and control pot cover effect Download PDFInfo
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- CN113186767A CN113186767A CN202110557578.7A CN202110557578A CN113186767A CN 113186767 A CN113186767 A CN 113186767A CN 202110557578 A CN202110557578 A CN 202110557578A CN 113186767 A CN113186767 A CN 113186767A
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- drainage
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- way
- pot cover
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
- E03F7/04—Valves for preventing return flow
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a roadbed structure and an airport runway for preventing and treating a pot cover effect, which comprise a permeable layer, a water-resisting layer, a drainage cushion layer and a pavement structure layer which are sequentially arranged from bottom to top, wherein a cohesive soil layer is backfilled in a soil surface area at the side part of the pavement structure layer, the drainage cushion layer extends to the lower part of the cohesive soil layer, a drainage seepage well which is longitudinally arranged is formed below the cohesive soil layer and is communicated with the permeable layer, a water-resisting plate which is longitudinally arranged is formed at one side of the drainage seepage well, which is close to the pavement structure layer, the self-adhesive soil layer of the water-resisting plate longitudinally penetrates through the drainage cushion layer and extends to the water-resisting layer, a one-way drainage pipeline is arranged on the water-resisting plate, the inlet of the one-way drainage pipeline is communicated with the drainage cushion layer, the drainage cushion layer is used for guiding water below the pavement structure layer to the inlet of the one-way drainage pipeline, and the outlet of the one-way drainage pipeline is communicated with the drainage seepage well. In the practical application process, accumulated water between the pavement structure layer and the water-resisting layer can be smoothly drained to the drainage seepage well; meanwhile, water can be prevented from flowing backwards to the pavement structure layer.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a roadbed structure for preventing and controlling pot cover effect and an airport runway.
Background
The 'pot cover effect' of the airport pavement is defined as the phenomenon that the evaporation effect of the soil surface is blocked by a water-resisting layer of the ground surface, so that moisture is accumulated under an airtight covering layer, and the moisture content of the soil below the covering layer is greatly increased and even reaches saturation. Recent theoretical studies have classified the "pot cover effect" into two categories, the first caused by the condensation of water vapor in unsaturated soils, and the second caused by gaseous water under freezing conditions. The first type of pot cover effect refers to the phenomenon of water vapor condensation and accumulation under a covering layer, which often occurs in soil with shallow underground water level and strong capillary, and water is mainly supplemented by liquid water; the second type of "pan cover effect" is common in arid or semi-arid regions where the evaporation is high and the groundwater level is deep, but where there is still a buildup of water under the cover. Furthermore, in partially rainy regions, as the airport ages, moisture enters the basement along with cracks in the pavement and accumulates below the runway. In airports, the accumulated moisture is difficult to drain laterally, since runways are large-area coverings. With the accumulation of moisture, serious engineering disasters such as the reduction of the strength of roadbed soil, the slurry turning of the roadbed and the like can be caused, and the taking-off and landing safety of the airplane is seriously threatened.
In summary, how to solve the problem that engineering disasters occur due to the fact that the roadbed is easily affected by the pot cover effect becomes a technical problem to be solved urgently by the technical staff in the field.
Disclosure of Invention
The invention aims to provide a roadbed structure for preventing and controlling a pot cover effect and an airport runway, so as to solve the problem that the roadbed is easily affected by the pot cover effect to cause engineering disasters.
In order to achieve the purpose, the invention provides a roadbed structure for preventing and treating a pot cover effect, which comprises a permeable layer, a water-resisting layer, a drainage cushion layer and a roadbed structure layer which are sequentially arranged from bottom to top, wherein a cohesive soil layer is backfilled in a soil surface area at the side part of the roadbed structure layer, the drainage cushion layer extends to the lower part of the cohesive soil layer, a drainage seepage well which is longitudinally arranged is formed below the cohesive soil layer and is communicated with the permeable layer, a water-resisting plate which is longitudinally arranged is formed at one side of the drainage seepage well, which is close to the roadbed structure layer, the water-resisting plate longitudinally penetrates through the drainage cushion layer from the cohesive soil layer and extends to the water-resisting layer, a one-way drainage pipeline is arranged on the water-resisting plate, an inlet of the one-way drainage pipeline is communicated with the drainage cushion layer, and the drainage cushion layer is used for draining water below the roadbed structure layer to an inlet of the one-way drainage pipeline, and the outlet of the one-way drainage pipeline is communicated with the drainage seepage well.
Preferably, the drainage cushion layer is of a macadam blind ditch structure, and an inlet of the one-way drainage pipeline is communicated with the tail end of the macadam blind ditch structure.
Preferably, the inlet of the one-way drainage pipeline is provided with a first filter screen.
Preferably, the outlet of the one-way drain pipeline is provided with a second filter screen.
Preferably, the one-way drainage pipeline includes a vertical drainage section located below the drainage cushion layer and in the drainage seepage well, a one-way valve structure is arranged inside the vertical drainage section, the one-way valve structure includes a floating ball and a floating ball stopper arranged in a pipe of the vertical drainage section, the floating ball stopper is located above the floating ball, the floating ball can abut against the lower end face of the floating ball stopper under the action of buoyancy, when the floating ball abuts against the floating ball stopper, the vertical drainage pipe is blocked from flowing, and when the floating ball is separated from the floating ball stopper, the vertical drainage pipe is conducted.
Preferably, the vertical drainage section is internally provided with a plurality of check valve structures.
Preferably, the vertical drainage section is internally provided with the check valve structure.
Preferably, the drainage seepage well is filled with gravel in a water-permeable manner.
Compared with the introduction content of the background technology, the roadbed structure for preventing and treating the pot cover effect comprises a permeable layer, a water-resisting layer, a drainage cushion layer and a pavement structure layer which are sequentially arranged from bottom to top, wherein a cohesive soil layer is backfilled in a soil surface area of the lateral part of the pavement structure layer, the drainage cushion layer extends to the lower part of the cohesive soil layer, a drainage seepage well which is longitudinally arranged and communicated with the permeable layer is formed below the cohesive soil layer, a water-resisting plate which is longitudinally arranged is formed on one side, close to the pavement structure layer, of the drainage seepage well, the self-adhesive soil layer of the water-resisting plate longitudinally penetrates through the drainage cushion layer and extends to the water-resisting layer, a one-way drainage pipeline is arranged on the water-resisting plate, the inlet of the one-way drainage pipeline is communicated with the drainage cushion layer, the drainage cushion layer is used for guiding water below the pavement structure layer to the inlet of the one-way drainage pipeline, and the outlet of the one-way drainage seepage well is communicated with the drainage seepage well. In the roadbed structure, in the practical application process, accumulated water between the pavement structure layer and the water-resisting layer can be drained to an inlet of the one-way drainage pipeline through the drainage cushion layer, and the outlet of the one-way drainage pipeline is communicated with the drainage seepage well, so the accumulated water can be drained into the drainage seepage well through the one-way drainage pipeline; meanwhile, as the one-way drainage pipeline drains water in one way, when rainfall is large or the underground water level rises in rainy seasons, surface water or underground water can be prevented from flowing backwards to the lower part of the pavement structure layer due to the blocking effect of the water-stop sheet and the one-way drainage pipeline, so that the problem of engineering disasters caused by the influence of the pot cover effect on the pavement is effectively avoided.
In addition, the invention also provides an airport runway, which comprises a roadbed structure, wherein the roadbed structure is the roadbed structure for preventing and treating the pot cover effect described in any scheme. Because the above-mentioned roadbed structure has the above-mentioned technical effects, the airport runway with the roadbed structure should also have corresponding technical effects, and will not be described herein again.
Drawings
Fig. 1 is a schematic cross-sectional view of a track structure according to an embodiment of the present invention.
In the context of figure 1 of the drawings,
Detailed Description
The core of the invention is to provide a roadbed structure for preventing and controlling the pot cover effect and an airport runway, so as to solve the problem that the roadbed is easily affected by the pot cover effect to cause engineering disasters.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a roadbed structure for preventing and treating a pot cover effect, comprising a permeable layer 1, a water-resisting layer 2, a drainage cushion layer 3 and a pavement structure layer 4, which are sequentially arranged from bottom to top, wherein a clay soil layer 5 is backfilled in a clay soil region at a side of the pavement structure layer 4, the drainage cushion layer 3 extends to below the clay soil layer 5, a drainage seepage well 6 which is longitudinally arranged and communicated with the permeable layer 1 is formed below the clay soil layer 5, a water-resisting plate 7 which is longitudinally arranged is formed at one side of the drainage seepage well 6 close to the pavement structure layer 4 (i.e. the region outside the pavement of the pavement structure layer), the water-resisting plate 7 longitudinally penetrates through the drainage cushion layer 3 from the clay soil layer 5 and extends to the water-resisting layer 2, a one-way drainage pipeline 8 is arranged on the water-resisting plate 7, an inlet of the one-way drainage pipeline 8 is communicated with the drainage cushion layer 3, the drainage cushion layer 3 is used for guiding water below the pavement structure layer 4 to an inlet of the one-way drainage pipeline 8, the outlet of the one-way drainage pipeline 8 is communicated with the drainage seepage well 6.
In the roadbed structure, in the practical application process, accumulated water between the pavement structure layer and the water-resisting layer can be drained to an inlet of the one-way drainage pipeline through the drainage cushion layer, and the outlet of the one-way drainage pipeline is communicated with the drainage seepage well, so the accumulated water can be drained into the drainage seepage well through the one-way drainage pipeline; meanwhile, as the one-way drainage pipeline drains water in one way, when rainfall is large or the underground water level rises in rainy seasons, surface water or underground water can be prevented from flowing backwards to the lower part of the pavement structure layer due to the blocking effect of the water-stop sheet and the one-way drainage pipeline, so that the problem of engineering disasters caused by the influence of the pot cover effect on the pavement is effectively avoided.
It should be noted here that the concrete structure of the drainage cushion 3 may adopt a rubble blind ditch structure, and the inlet of the one-way drainage pipeline 8 is communicated with the tail end of the rubble blind ditch structure. The water accumulated in the roadbed can be timely discharged through the structure (such as a transverse blind ditch) of the gravel blind ditch, and the roadbed engineering is effectively prevented from being influenced by water flow accumulated below the pavement structure layer. It is understood that the rock debris blind ditch is merely a preferred example of the embodiment of the present invention, and in the practical application, other drainage cushion structures commonly used by those skilled in the art may also be used, as long as a transverse drainage channel can be formed between the water barrier layer and the pavement structure layer, which is not limited herein in more detail.
In a further embodiment, in order to avoid the one-way drainage pipeline from being blocked to influence the drainage of the drainage cushion, a first filter screen 9 can be arranged at the inlet of the one-way drainage pipeline 8; similarly, a second filter screen 10 may be disposed at the outlet of the corresponding one-way drainage pipeline 8.
In some specific embodiments, the above-mentioned one-way drainage pipeline 8 realizes a specific structural form of one-way drainage from an inlet to an outlet, the one-way drainage pipeline 8 may be designed to include a vertical drainage section located below the drainage cushion layer 3 and in the drainage seepage well 6, the inside of the vertical drainage section is provided with a one-way valve structure 11, the one-way valve structure 11 includes a floating ball and a floating ball stopper arranged in a pipe of the vertical drainage section, the floating ball stopper is located above the floating ball, and the floating ball can abut against a lower end face of the floating ball stopper under the action of buoyancy, when the floating ball abuts against the floating ball stopper, the vertical drainage pipe is blocked from flowing, when the floating ball is separated from the floating ball stopper, the vertical drainage pipe is conducted. By the one-way valve structure, when the water level of the drainage cushion layer is higher than that of the drainage seepage well, water flows from the drainage cushion layer to the drainage seepage well, the floating ball moves downwards, the one-way drainage pipeline is opened, and drainage is started; when the water level of the drainage seepage well is higher than the drainage cushion layer, water flows from the drainage seepage well to the drainage cushion layer. At the moment, the floating ball floats upwards, the one-way drainage pipeline is closed, and external water flow is prevented from entering the drainage cushion layer.
It should be noted here that, a check valve structure 11 may be specifically arranged inside the vertical drainage section, and a plurality of check valve structures 11 may also be arranged inside the vertical drainage section. In the practical application process, the selection can be carried out according to the practical requirements.
In some more specific embodiments, the inside of the drainage seepage well 6 can be filled with water-permeable gravels to ensure the supporting force of the structure of the drainage seepage well on the cohesive soil layer backfilled on the top soil surface area. It is understood that the manner of filling the water permeable gravel is merely a preferred example of the embodiment of the present invention, and in practical applications, other filling manners or supporting manners may be adopted as long as the water permeable seepage well is communicated with the water permeable layer and the water flow is ensured, which will not be described in further detail herein.
In addition, the invention also provides an airport runway, which comprises a roadbed structure, wherein the roadbed structure is the roadbed structure for preventing and treating the pot cover effect described in any scheme. Because the above-mentioned roadbed structure has the above-mentioned technical effects, the airport runway with the roadbed structure should also have corresponding technical effects, and will not be described herein again.
The detailed description of the roadbed structure and the airport runway for preventing and controlling the pot cover effect provided by the invention is provided above. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. The roadbed structure is characterized by comprising a permeable layer (1), a water-resisting layer (2), a drainage cushion layer (3) and a roadbed structure layer (4) which are sequentially arranged from bottom to top, wherein a cohesive soil layer (5) is backfilled in a soil surface area of the side part of the roadbed structure layer (4), the drainage cushion layer (3) extends to the lower part of the cohesive soil layer (5), a drainage seepage well (6) which is longitudinally arranged and communicated with the permeable layer (1) is formed below the cohesive soil layer (5), a water-resisting plate (7) which is longitudinally arranged is formed on one side of the drainage seepage well (6) close to the roadbed structure layer (4), the water-resisting plate (7) longitudinally penetrates through the drainage cushion layer (3) from the cohesive soil layer (5) and extends to the water-resisting layer (2), and a one-way drainage pipeline (8) is arranged on the water-resisting plate (7), the inlet of the one-way drainage pipeline (8) is communicated with the drainage cushion (3), the drainage cushion (3) is used for draining water below the pavement structure layer (4) to the inlet of the one-way drainage pipeline (8), and the outlet of the one-way drainage pipeline (8) is communicated with the drainage seepage well (6).
2. The roadbed structure for preventing pot cover effect according to claim 1, wherein the drainage cushion layer (3) is a macadam structure, and an inlet of the one-way drainage pipeline (8) is communicated with a tail end of the macadam structure.
3. The roadbed structure for preventing pot cover effect according to claim 1, wherein the inlet of the one-way drainage pipeline (8) is provided with a first filter screen (9).
4. The roadbed structure for preventing pot cover effect according to claim 1, wherein the outlet of the one-way drainage pipeline (8) is provided with a second filter screen (10).
5. The roadbed structure for preventing pot cover effect according to claim 1, wherein the one-way drainage pipeline (8) comprises a vertical drainage section located below the drainage cushion layer (3) and in the drainage seepage well (6), a one-way valve structure (11) is arranged inside the vertical drainage section, the one-way valve structure (11) comprises a floating ball and a floating ball stop arranged in the pipe of the vertical drainage section, the floating ball stop is located above the floating ball, the floating ball can abut against the lower end surface of the floating ball stop under the action of buoyancy, when the floating ball abuts against the floating ball stop, the vertical drainage pipe is blocked from flowing, and when the floating ball disengages from the floating ball stop, the vertical drainage pipe is conducted.
6. Track-based structure for controlling pot cover effect according to claim 5, characterized in that inside said vertical drainage section there are provided a plurality of said one-way valve structures (11).
7. Roadbed structure for controlling pot cover effects according to claim 5, characterized in that inside the vertical drainage section is arranged a one-way valve structure (11).
8. Roadbed structure for controlling pot cover effects according to claim 1, characterized in that the drainage wells (6) are filled with crushed stones in a water-permeable manner.
9. An airport runway comprising a roadbed structure, wherein the roadbed structure is the roadbed structure for preventing and treating the pot cover effect according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557578.7A CN113186767A (en) | 2021-05-21 | 2021-05-21 | A way foundation structure and airport runway for preventing and control pot cover effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110557578.7A CN113186767A (en) | 2021-05-21 | 2021-05-21 | A way foundation structure and airport runway for preventing and control pot cover effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113186767A true CN113186767A (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110557578.7A Pending CN113186767A (en) | 2021-05-21 | 2021-05-21 | A way foundation structure and airport runway for preventing and control pot cover effect |
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| CN (1) | CN113186767A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045153A (en) * | 2022-05-30 | 2022-09-13 | 民航机场规划设计研究总院有限公司 | Drainage method and device for preventing and treating accumulated water on apron roadbed |
-
2021
- 2021-05-21 CN CN202110557578.7A patent/CN113186767A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115045153A (en) * | 2022-05-30 | 2022-09-13 | 民航机场规划设计研究总院有限公司 | Drainage method and device for preventing and treating accumulated water on apron roadbed |
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