CN215051696U - 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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- CN215051696U CN215051696U CN202121112440.8U CN202121112440U CN215051696U CN 215051696 U CN215051696 U CN 215051696U CN 202121112440 U CN202121112440 U CN 202121112440U CN 215051696 U CN215051696 U CN 215051696U
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Abstract
The utility model discloses a roadbed structure and airport runway for preventing and treating pot cover effect, include the permeable bed of arranging in proper order from bottom to top, the water barrier, drainage bed course and pavement structure layer, cohesive soil layer is backfilled in the soil surface district of the lateral part of pavement structure layer, the drainage bed course extends to the below of cohesive soil layer, cohesive soil layer's below is formed with longitudinal arrangement and with the communicating drainage seepage well of permeable bed, one side that the drainage seepage well is close to the pavement structure layer is formed with longitudinal arrangement's water barrier, water barrier autohension soil layer vertically passes the drainage bed course and extends to the water barrier, and be provided with one-way drainage pipe on the water barrier, one-way drainage pipe's import and drainage bed course intercommunication, the drainage bed course is used for with the water drainage to one-way drainage pipe's of pavement structure layer below import, one-way drainage pipe's export and drainage seepage well intercommunication. 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 utility model relates to a building technical field especially relates to a roadbed structure and airport runway for preventing and treating pot cover effect.
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.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a roadbed structure and airport runway for preventing and treating pot cover effect to solve the roadbed and receive the influence of pot cover effect easily and appear the problem of engineering disaster.
In order to achieve the above object, the utility model provides a roadbed structure for preventing and treating pot cover effect, including permeable bed, water barrier, drainage bed course and the road surface structural layer of arranging in proper order from bottom to top, the soil face district of the lateral part of road surface structural layer is backfilled with cohesive soil layer, the drainage bed course extends to the below of cohesive soil layer, the below of cohesive soil layer is formed with longitudinal arrangement and with the communicating drainage seepage well of permeable bed, one side that the drainage seepage well is close to the road surface structural layer is formed with longitudinal arrangement's water barrier, the water barrier from the cohesive soil layer vertically passes the drainage bed course and extends to the water barrier, and be provided with one-way drain line on the water barrier, one-way drain line's import with the drainage bed course communicates, the drainage bed course is used for with the water drainage of road surface structural layer below extremely one-way drain line's import, 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 utility model also provides an airport runway, including the road base structure, this road base structure is the road base structure that is used for preventing and treating the pot cover effect that aforementioned arbitrary scheme described. 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 foundation structure according to an embodiment of the present invention.
In the context of figure 1 of the drawings,
Detailed Description
The core of the utility model is to provide a roadbed structure and airport runway for preventing and treating pot cover effect to solve the roadbed and receive the influence of pot cover effect easily and the problem of engineering disaster appears.
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-proof 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 soil surface area of a side portion of the pavement structure layer 4, the drainage cushion layer 3 extends to a position 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-proof plate 7 which is longitudinally arranged is formed on one side of the drainage seepage well 6 close to the pavement structure layer 4 (i.e. an area outside a pavement of the pavement structure layer), the water-proof plate 7 longitudinally penetrates through the drainage cushion layer 3 from the clay soil layer 5 and extends to the water-proof layer 2, a one-way drainage pipeline 8 is arranged on the water-proof 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 should be understood that the rock debris blind ditch is merely a preferred example of the embodiment of the present invention, and in the practical application process, other drainage cushion structures commonly used by those skilled in the art may also be adopted 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 filling of the permeable gravel is merely a preferred example of the embodiment of the present invention, and in the practical application process, other filling or supporting methods may be adopted as long as it can ensure the communication between the drainage seepage well and the permeable layer and the water flow, and will not be described in more detail herein.
In addition, the utility model also provides an airport runway, including the road base structure, this road base structure is the road base structure that is used for preventing and treating the pot cover effect that aforementioned arbitrary scheme described. 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 above is to the track base structure and the airport runway for preventing and treating the pot cover effect provided by the utility model are introduced in detail. 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 have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
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 |
|---|---|---|---|
| CN202121112440.8U CN215051696U (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 |
|---|---|---|---|
| CN202121112440.8U CN215051696U (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 |
|---|---|
| CN215051696U true CN215051696U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121112440.8U Active CN215051696U (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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| Country | Link |
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| CN (1) | CN215051696U (en) |
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2021
- 2021-05-21 CN CN202121112440.8U patent/CN215051696U/en active Active
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