Expansive soil roadbed drying device
By designing parallel interconnection pipelines and expanded soil roadbed drying devices with multiple seepage holes, natural air convection is used to accelerate moisture evaporation, which solves the problem of slow drying speed inside the roadbed in the prior art, and significantly reduces the risk of slope collapse.
Patent Information
- Application Number
- CN202421602025.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The prior art cannot accelerate drying of the roadbed internally, resulting in a large amount of water remaining in the roadbed for a long time, increasing the risk of slope collapse, especially in clay such as expansive soil, which has poor drainage effect.
An expanded soil roadbed drying device is designed including two connected pipes in parallel. A plurality of water seepage holes are provided on the pipe, and the air flow in the pipe is driven by natural air convection, accelerating the evaporation of water in the water seepage holes, thereby accelerating soil drying.
By accelerating moisture evaporation, the drying speed inside the roadbed is significantly improved, and the risks such as slope collapse are reduced, especially in the expanded soil, which shows better drainage effect.
Smart Images
Figure CN222964365U_ABST
Abstract
Description
Technical Field
[0001] The utility model mainly relates to the technical field of drying devices, in particular to a drying device for expansive soil subgrade. Background Art
[0002] Water erosion is one of the common diseases of subgrade. During construction, drainage ditches, drainage pipes and other facilities are usually set up to avoid the subgrade being flooded or drain the water in the subgrade.
[0003] For the water infiltrated into the subgrade, the existing technology usually drains the water through pre-buried drainage pipes. This drainage method is passive drainage and cannot accelerate the drying of the subgrade interior, resulting in a large amount of water staying in the subgrade for a long time, which is prone to risks such as slope collapse. Especially for clay such as expansive soil, the drainage effect is even worse. Summary of the Invention
[0004] The purpose of the utility model is to provide a drying device for expansive soil subgrade. The utility model includes two connected pipes arranged in parallel, and a plurality of water seepage holes are arranged on the pipes. In addition to playing the role of the existing drainage pipes, this design drives the air flow in the pipes through natural air convection, thereby accelerating the evaporation of the water in the water seepage holes to achieve the technical purpose of accelerating the drying of the soil. Compared with the existing technology, it can also utilize the wind energy to accelerate the drying speed of the subgrade interior.
[0005] To achieve the above purpose, the utility model provides a drying device for expansive soil subgrade, including a pipe body 100 and a guard plate 200; a partition 120 is arranged in the pipe body 100, and the partition 120 divides the pipe body 100 into two or more pipe cavities. A plurality of water seepage holes 111 are arranged on the pipe wall 110 of the pipe body 100; one end of the pipe body 100 is connected to the guard plate 200, and two or more air flow exchange ports 210 are opened on the guard plate 200, and the two or more air flow exchange ports 210 are respectively connected to the two or more pipe cavities of the pipe body 100.
[0006] Further, the other end of the pipe body 100 extends out a bending end 300, a partition 120 is arranged in the bending end 300, and the partition 120 divides the bending end 300 into two or more pipe cavities. A plurality of water seepage holes 111 are arranged on the pipe wall 110 of the bending end 300.
[0007] Further, the two air flow exchange ports 210 are inclined in opposite directions.
[0008] Further, a fixing rod 220 is also arranged on the guard plate 200, and the fixing rod 220 can be inserted into the slope of the soil subgrade.
[0009] Furthermore, an inclined section 130 is provided on the tube body 100 so that the opening direction of the tube body 100 close to the guard plate 200 is inclined downward; a hose section 140 is also provided on the tube body 100, and the hose section 140 is a hose section with telescopic function.
[0010] Furthermore, a filter is provided at the airflow exchange port 210, and the filter is detachable.
[0011] Furthermore, the water seepage holes 111 are capillary water seepage holes.
[0012] Furthermore, two or more lumens of the tube body 100 are connected inside the tube body 100 or the bent end 300 , and air can enter from one airflow exchange port 210 and be discharged from another airflow exchange port 210 .
[0013] Furthermore, a curved exchange port transition section 121 and a curved end transition section 122 are provided at the connection between the tube body 100 , the guard plate 200 and the curved end 300 .
[0014] Furthermore, the curved end 300 is T-shaped or Z-shaped.
[0015] Beneficial effects:
[0016] The utility model provides an expansive soil roadbed drying device. For water infiltrating into the roadbed, two parallel interconnected pipes are designed, and a plurality of water seepage holes are arranged on the pipes. In addition to playing the role of passive drainage through the drainage pipe, the utility model drives the air flow in the pipe through natural air convection, thereby accelerating the evaporation of water in the water seepage holes, so as to achieve the technical purpose of accelerating soil drying. Compared with the prior art, the drying speed inside the roadbed can also be accelerated by wind energy. The utility model solves the problem that the prior art cannot accelerate the drying inside the roadbed, so that a large amount of water stays in the roadbed for a long time, and reduces the risk of slope collapse. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional diagram of an expansive soil roadbed drying device involved in an embodiment of the utility model;
[0018] Figure 2 It is a cross-sectional view of an expansive soil roadbed drying device involved in an embodiment of the utility model;
[0019] Figure 3 It is a simplified model schematic diagram of an expansive soil roadbed drying device involved in an embodiment of the utility model;
[0020] Figure 4 It is a schematic diagram of the pre-buried state of the expansive soil roadbed drying device involved in the embodiment of the utility model;
[0021] Figure 5It is a schematic diagram of the working principle of the expansive soil subgrade drying device involved in the embodiment of the present utility model;
[0022] Figure 6 It is a schematic diagram of the preferred solution of the expansive soil subgrade drying device involved in the embodiment of the present utility model.
[0023] Explanation of reference numerals:
[0024] Among them: 100 is the pipe body; 110 is the pipe wall; 111 is the water seepage hole; 120 is the partition; 121 is the exchange port transition section; 122 is the bending end transition section; 130 is the inclined section; 140 is the hose section; 200 is the guard plate; 210 is the air flow exchange port; 220 is the fixing rod; 300 is the bending section. Specific implementation manners
[0025] The preferred mechanisms and implementation methods of the present utility model will be further described below with reference to the accompanying drawings and specific implementation manners.
[0026] As Figures 1 to 6 shown, the embodiment of the present utility model discloses a technical solution of an expansive soil subgrade drying device.
[0027] Figures 1-3 , Figure 1 is a three-dimensional view of the expansive soil subgrade drying device involved in the embodiment of the present utility model, Figure 2 is a sectional view of the expansive soil subgrade drying device involved in the embodiment of the present utility model, Figure 3 is a schematic diagram of a simplified model of the expansive soil subgrade drying device involved in the embodiment of the present utility model.
[0028] Embodiment 1
[0029] The expansive soil subgrade drying device includes a pipe body 100 and a guard plate 200; a partition 120 is arranged in the pipe body 100, and the partition 120 divides the pipe body 100 into two or more pipe cavities. A plurality of water seepage holes 111 are arranged on the pipe wall 110 of the pipe body 100; one end of the pipe body 100 is connected to the guard plate 200, and two or more air flow exchange ports 210 are opened on the guard plate 200, and the two or more air flow exchange ports 210 are respectively connected to the two or more pipe cavities of the pipe body 100.
[0030] The pipe body 100 is preferably a circular pipe, so that the pressures in all directions are relatively balanced, and the stability of the pipe body 100 under the slope pressure is improved.
[0031] The pipe body 100 is preferably a flat structure, thereby expanding the contact area between the pipe body 100 and the soil, making the drying effect further expanded. In order to prevent deformation, a plurality of support columns can be arranged inside.
[0032] Embodiment 2
[0033] The connection method of this embodiment is basically the same as that of embodiment 1, except that a curved end 300 is extended from the other end of the tube body 100, a partition 120 is provided inside the curved end 300, the partition 120 divides the curved end 300 into two or more lumens, and a plurality of water seepage holes 111 are provided on the tube wall 110 of the curved end 300.
[0034] Example 3
[0035] The connection method of this embodiment is basically the same as that of embodiment 1, except that the two airflow exchange ports 210 are tilted in opposite directions. When the free-flowing water in the roadbed has flowed away, the utility model can accelerate the drying speed inside the slope. Figure 5 As shown, when the wind blows along the slope, it will promote the air in the windward airflow exchange port, forcing the air to enter the pipe body 100 from the windward airflow exchange port; at the same time, the wind blows through the leeward airflow exchange port, accelerating the air flow speed at the airflow exchange port. According to the Bernoulli principle, the air pressure at the airflow exchange port decreases, forcing the air in the pipe body 100 to flow out. Therefore, under the action of the two airflow exchange ports, the air in the pipe body 100 flows, thereby accelerating the evaporation of water in the soil near the water seepage hole 111 and taking away the water vapor; when part of the soil is dry, the water will move towards the dry soil under the capillary action, thereby driving the drying of a larger range of soil.
[0036] Example 4
[0037] The connection method of this embodiment is basically the same as that of embodiment 1, except that the inclination angle of the guard plate 200 is the same as the inclination angle of the earth roadbed slope. Figure 4 As shown, the pipe body 100 can be slightly inclined, and the inclination angle of the guard plate 200 is the same as the inclination angle of the slope, so that the guard plate 200 can be closely attached to the earth roadbed slope.
[0038] Example 5
[0039] The connection method of this embodiment is basically the same as that of the first embodiment, except that a fixing rod 220 is further provided on the guard plate 200, and the fixing rod 220 can be inserted into the earth roadbed slope. Figure 6As shown in the figure, in order to fix the guard plate 200 on the slope of the soil subgrade, a fixing rod 220 is also provided on the guard plate 200, and the fixing rod 220 is inserted into the slope of the soil subgrade. In order to prevent rainwater from flowing back during rainfall, an inclined section 130 is also provided on the pipe body 100, so that the opening direction of the pipe body 100 close to the guard plate 200 is inclined downward. Considering the expansion and contraction of the clay volume, a flexible pipe section 140 is also provided on the pipe body 100. On the one hand, it is used to buffer the deformation of the subgrade, prevent this design from being damaged due to the expansion and contraction of the subgrade or generating relative displacement with the subgrade, and on the other hand, it adjusts the inclination angle of the guard plate 200 so that it can closely adhere to the slopes of soil subgrades with different inclination angles.
[0040] The fixing rod 220 can be fixedly connected to the guard plate 200 or can be detachably connected. For example, the guard plate 200 is fixed on the slope through a bolt, so that the guard plate 200 has the ability to retain soil.
[0041] For the convenience of installation, the flexible pipe section 140 can also be set as a flexible pipe with a telescopic function (refer to the washing machine drain pipe, the position where it is usually bent, etc.).
[0042] Embodiment 6
[0043] The connection method of this embodiment is basically the same as that of Embodiment 1. The difference is that for the convenience of installation, the connection method between the guard plate (200) and the pipe body (100) is a detachable connection. The connection methods include but are not limited to snap connection, threaded connection, rivet connection, etc.
[0044] Embodiment 7
[0045] The connection method of this embodiment is basically the same as that of Embodiment 1. The difference is that in order to prevent foreign objects from entering the pipe cavity, a filter screen can be provided at the air exchange port 210, and for the convenience of cleaning the pipe cavity, this filter screen can be detachably arranged.
[0046] Embodiment 8
[0047] The connection method of this embodiment is basically the same as that of Embodiment 1. The difference is that the water seepage holes 111 can also be set as capillary water seepage holes, so as to prevent the soil from being washed away by the water flow from the water seepage holes 111.
[0048] Embodiment 9
[0049] The connection method of this embodiment is basically the same as that of Embodiment 1 or Embodiment 2. The difference is that two or more pipe cavities of the pipe body 100 are connected within the pipe body 100 or at the bending end 300, and air can enter from one air exchange port 210 and discharge from the other air exchange port 210.
[0050] Embodiment 10
[0051] The connection method in this embodiment is basically the same as that in Embodiment 2. The difference lies in that a curved exchange port transition section 121 and a curved end transition section 122 are also provided at the connection of the pipe body 100, the guard plate 200, and the curved end 300. The curved end 300 is preferably designed in a T shape, and the stress of this shape is relatively balanced, and it can also play a role similar to that of an anchor rod. In addition, the curved end 300 can also be other shapes, such as a "Z" shape, etc.
[0052] The length of the pipe body 100 can be set according to the actual situation such as slope construction conditions and pipe diameter size. In order to facilitate the adjustment of the length of the pipe body 100, the pipe body 100 and the curved end 300 can be detachably connected, and the connection methods include but are not limited to snap connection, threaded connection, rivet connection, etc.
[0053] The present utility model provides a drying device for an expansive soil subgrade. For the water infiltrating into the subgrade, two parallel communication pipes are designed, and a plurality of water seepage holes are provided on the pipes. In addition to playing the role of passive drainage through the drain pipes, the present utility model drives the air flow in the pipes through natural air convection, thereby accelerating the evaporation of the moisture in the water seepage holes to achieve the technical purpose of accelerating the drying of the soil. Compared with the prior art, it can also utilize the wind energy to accelerate the drying speed inside the subgrade. The present utility model solves the problem that the prior art cannot accelerate the drying inside the subgrade, resulting in a large amount of moisture staying in the subgrade for a long time, and reduces the risks such as slope collapse.
[0054] Finally, it should be noted that the above are only the preferred embodiments of the present invention / utility model and are not used to limit the present invention / utility model. Although the present invention / utility model has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention / utility model shall be included within the protection scope of the present invention / utility model.
Claims
1. An expansive soil roadbed drying device, characterized in that: It comprises a tube body (100) and a guard plate (200); A partition (120) is provided in the tube body (100), and the partition (120) divides the tube body (100) into two or more tube cavities. A plurality of water seepage holes (111) are provided on the tube wall (110) of the tube body (100); One end of the tube body (100) is connected to the protective plate (200), and the protective plate (200) is provided with more than two airflow exchange ports (210), and the more than two airflow exchange ports (210) are respectively connected to more than two lumens of the tube body (100).
2. The expansive soil roadbed drying device according to claim 1, characterized in that: A curved end (300) extends from the other end of the tube body (100), a partition (120) is provided inside the curved end (300), the partition (120) divides the curved end (300) into two or more tube cavities, and a plurality of water seepage holes (111) are provided on the tube wall (110) of the curved end (300).
3. The expansive soil roadbed drying device according to claim 1, characterized in that: The two airflow exchange ports (210) are arranged to be inclined in opposite directions.
4. The expansive soil roadbed drying device according to claim 1, characterized in that: A fixing rod (220) is also provided on the guard plate (200), and the fixing rod (220) can be inserted into the earth roadbed slope.
5. The expansive soil roadbed drying device according to claim 1, characterized in that: An inclined section (130) is also provided on the tube body (100), so that the opening direction of the tube body (100) close to the guard plate (200) is inclined downward; A hose section (140) is also provided on the tube body (100), and the hose section (140) is a hose section with a telescopic function.
6. The expansive soil roadbed drying device according to claim 1, characterized in that: A filter screen is provided at the airflow exchange port (210), and the filter screen is detachable.
7. The expansive soil roadbed drying device according to claim 1 or 2, characterized in that: The water seepage holes (111) are capillary water seepage holes.
8. The expansive soil roadbed drying device according to claim 1 or 2, characterized in that: The two or more lumens of the tube body (100) are connected inside the tube body (100) or inside the bent end (300), and air can enter from one airflow exchange port (210) and be discharged from another airflow exchange port (210).
9. The expansive soil roadbed drying device according to claim 2, characterized in that: A curved exchange port transition section (121) and a curved end transition section (122) are also provided at the connection point between the tube body (100), the guard plate (200) and the curved end (300).
10. The expansive soil roadbed drying device according to claim 2, characterized in that: The curved end (300) is of T-shaped design or Z-shaped design.