Plant ecological roadbed system

Abstract

The invention discloses a plant ecological roadbed system which comprises a roadbed, at least part of a drainage device is arranged in the roadbed, the drainage device is used for absorbing and discharging moisture contained in the roadbed, at least part of an irrigation device is arranged in the roadbed, and the irrigation device is used for irrigating the roadbed. The irrigation device is selectively communicated with the drainage device to enable water absorbed by the drainage device to selectively flow into the irrigation device so as to enable the irrigation device to irrigate plants on the roadbed, and the control device is configured to control the irrigation device and the drainage device to be selectively communicated according to the water content of the roadbed. Therefore, through cooperative use of the drainage device, the irrigation device and the control device, soil moisture is reasonably managed, the water content of the roadbed can be effectively balanced, the stability of the roadbed is protected, the utilization rate of water resources is increased, remote monitoring and self-adaptive adjustment of the plant ecological roadbed system can be achieved, and the manual maintenance cost is remarkably reduced; and therefore, the structural stability of the roadbed can be efficiently and sustainably maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of roadbed systems, and in particular to a plant ecological roadbed system. Background Art

[0002] In the related technology, the drainage path in the existing roadbed system is single and fixed, and the drainage device directly discharges the collected water without utilizing it. There is a lack of dynamic regulation of the moisture content of the roadbed, which reduces the utilization rate of water resources and is not conducive to the structural stability of the roadbed. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a plant ecological roadbed system that can reasonably manage soil moisture, effectively balance the water content of the roadbed, protect the stability of the roadbed, and improve water resource utilization.

[0004] According to an embodiment of the present invention, the plant ecological roadbed system includes: a roadbed, a drainage device, at least a portion of the drainage device is arranged in the roadbed, the drainage device is used to absorb and discharge moisture contained in the roadbed, an irrigation device, at least a portion of the irrigation device is arranged in the roadbed, the irrigation device and the drainage device are selectively connected so that the moisture absorbed by the drainage device selectively flows into the irrigation device, so that the irrigation device irrigates plants on the roadbed, and a control device, the control device is configured to control the selective connection between the irrigation device and the drainage device according to the moisture content of the roadbed.

[0005] According to an embodiment of the present invention, the plant ecological roadbed system selectively connects the irrigation device and the drainage device, allowing water absorbed by the drainage device to selectively flow into the irrigation device, allowing the irrigation device to irrigate the plants on the roadbed. This effectively manages soil moisture, preventing plant root diseases caused by excessive water accumulation, reducing soil erosion in the roadbed, and preventing roadbed cracking due to drought. This effectively balances the roadbed's moisture content, protects roadbed stability, and improves water resource utilization. A control device is configured to selectively connect the irrigation device and the drainage device based on the roadbed's moisture content, enabling remote monitoring and adaptive adjustment of the plant ecological roadbed system, significantly reducing labor maintenance costs and enabling efficient and sustainable maintenance of the roadbed's structural stability.

[0006] According to some embodiments of the present invention, the drainage device includes: a water absorption structure and a drainage structure. The water absorption structure is arranged in the roadbed to absorb the internal moisture of the roadbed. The water absorption structure is connected to the drainage structure so that the drainage structure discharges the moisture absorbed by the water absorption structure.

[0007] According to some embodiments of the present invention, the drainage structure includes: a drainage pipe, a drainage trough, and a drainage ditch. The drainage trough is connected to the drainage pipe and the drainage ditch, and the drainage pipe is connected to the water absorption structure.

[0008] According to some embodiments of the present invention, the roadbed has a roadbed slope, and the roadbed slope is formed with a drainage ditch extending along a first direction. The drainage pipe and the drainage ditch both extend along a second direction. Along the first direction, the drainage pipe is located above the drainage ditch, and the first direction and the second direction are perpendicular to each other in the plane where the slope surface of the roadbed slope is located.

[0009] According to some embodiments of the present invention, the irrigation device is constructed as an infiltration pipe network, the infiltration pipe network defines a plurality of plant planting areas, and the infiltration pipe network is selectively connected to a drainage pipe.

[0010] According to some embodiments of the present invention, the infiltration pipe network includes: a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are connected and both have seepage holes, the roadbed has a roadbed slope, the first branch pipe extends along a first direction, the second branch pipe extends along a second direction, and at least one of the first branch pipe and the second branch pipe is selectively connected to a drainage pipe, and the first direction and the second direction are perpendicular to each other within the plane where the slope surface of the roadbed slope is located.

[0011] According to some embodiments of the present invention, there are multiple first branches and multiple second branches, and the multiple first branches are arranged in sequence along the second direction and spaced apart from each other, and the multiple second branches are arranged in sequence along the first direction and spaced apart from each other, each first branch is connected to the multiple second branches, and at least one first branch is selectively connected to the drainage pipe.

[0012] According to some embodiments of the present invention, the water-absorbing structure is constructed as a geotextile structure.

[0013] According to some embodiments of the present invention, the plant ecological roadbed system further includes: a first valve body, the first valve body is connected between the infiltration pipe network and the drainage pipe, the first valve body is communicatively connected to the control device, and the control device controls the first valve body to selectively connect the irrigation device and the drainage device.

[0014] According to some embodiments of the present invention, the control device includes: a controller and a detection mechanism, the controller is communicatively connected to the detection mechanism and the first valve body, the detection mechanism is arranged in the roadbed and is used to detect the moisture content in the roadbed, and the controller is configured to control the opening or closing of the first valve body according to the detection information of the detection mechanism.

[0015] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0017] Figure 1Schematic diagram of the structure of the plant ecological roadbed system according to an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of a plant ecological roadbed system according to an embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the structure of an irrigation device according to an embodiment of the present invention.

[0020] Reference numerals:

[0021] Plant ecological roadbed system 100;

[0022] Roadbed 10; Roadbed slope 11;

[0023] Drainage device 20; water absorption structure 21;

[0024] Drainage structure 22; drainage pipe 221; drainage trough 222; drainage ditch 223;

[0025] Irrigation device 30; first branch pipe 31; second branch pipe 32; seepage hole 33;

[0026] Control device 40; controller 41; detection mechanism 42;

[0027] First valve body 50 . DETAILED DESCRIPTION

[0028] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0029] Reference below Figure 1-Figure 3 A plant ecological roadbed system 100 according to an embodiment of the present invention is described, comprising: a roadbed 10, a drainage device 20, at least a portion of which is disposed within the roadbed 10 and is used to absorb and discharge moisture contained in the roadbed 10; an irrigation device 30, at least a portion of which is disposed within the roadbed 10 and selectively connects with the drainage device 20 so that moisture absorbed by the drainage device 20 selectively flows into the irrigation device 30, so that the irrigation device 30 irrigates plants on the roadbed 10; and a control device 40, which is configured to control the selective connection between the irrigation device 30 and the drainage device 20 according to the moisture content of the roadbed 10.

[0030] The roadbed 10 is the foundation structure of a railway or highway line. It directly bears the load transmitted by the track or road surface and evenly distributes it to the foundation. Improving the structural stability and service life of the roadbed 10 is key to ensuring safe operation of the line and reducing maintenance costs. A drainage device 20 is provided. At least a portion of the drainage device 20 is located within the roadbed 10. A portion of the drainage device 20 may be located within the roadbed 10, such as one-half or two-thirds. However, the present invention is not limited thereto. Alternatively, a portion of the drainage device 20 may be located within the roadbed 10, as long as at least a portion of the drainage device 20 is located within the roadbed 10. The drainage device 20 is used to absorb and drain moisture contained in the roadbed 10. It can effectively remove groundwater and surface runoff from the roadbed 10, lower the groundwater level, and prevent the roadbed 10 from becoming wet or flooded. This reduces the erosion and softening effects of moisture on the roadbed 10 soil, avoids water-induced softening, mud slurrying, frost heave, and other roadbed 10 problems, maintains the strength and stability of the roadbed 10 soil, and improves the overall bearing capacity of the roadbed 10. A good drainage device 20 can reduce the damage of water to the roadbed 10 , reduce the repair and maintenance costs of the roadbed 10 , and thus extend the service life of the roadbed 10 .

[0031] At least a portion of the irrigation device 30 is disposed within the roadbed 10. One-half, two-thirds, or other proportions of the irrigation device 30 may be disposed within the roadbed 10, but the present invention is not limited thereto. The irrigation device 30 may also be entirely disposed within the roadbed 10, as long as at least a portion of the irrigation device 30 is disposed within the roadbed 10. The irrigation device 30 selectively communicates with the drainage device 20, allowing water absorbed by the drainage device 20 to selectively flow into the irrigation device 30, thereby irrigating the plants on the roadbed 10. By selectively directing water absorbed by the drainage device 20 into the irrigation device 30, water resources are recycled, fresh water consumption is reduced, water resource utilization efficiency is improved, irrigation costs are reduced, and expenses incurred by purchasing water from external sources or extracting groundwater are reduced.

[0032] Water absorbed by the drainage device 20 selectively flows into the irrigation device 30, which then irrigates the plants on the roadbed 10. This provides a stable water supply for the plants on the roadbed 10, optimizes the plant growth environment, and helps improve the survival rate and growth quality of the plants. Healthy plant growth can better stabilize the soil on the roadbed 10, reduce soil erosion, further enhance the stability of the roadbed 10, and form a healthy ecological cycle. The coordinated use of the drainage device 20 and the irrigation device 30 allows for the proper management of soil moisture, preventing plant root diseases caused by excessive water accumulation, reducing soil erosion on the roadbed 10, and preventing cracking of the roadbed 10 due to drought. This effectively balances the water content of the roadbed 10 and protects its stability.

[0033] The control device 40 is configured to control the selective connection between the irrigation device 30 and the drainage device 20 according to the moisture content of the roadbed 10. By real-time monitoring of the moisture content of the roadbed 10, the control device 40 can accurately judge the water demand of the plants. When the moisture content of the roadbed 10 is lower than or equal to the preset value, the control device 40 controls the irrigation device 30 and the drainage device 20 to be connected, so that the water in the drainage device 20 flows into the irrigation device 30, providing accurate water supply for the plants, ensuring the water required for normal growth of the plants, and the healthy growth of plants can better fix the soil of the roadbed 10, reduce soil erosion, further improve the stability of the roadbed 10, and form a good ecological cycle. When the moisture content of the roadbed 10 exceeds a preset value, the water content in the roadbed 10 is high, which can easily cause roadbed 10 to soften, slurry, frost heave, and other diseases. The control device 40 controls the irrigation device 30 and the drainage device 20 to be disconnected, allowing the drainage device 20 to promptly drain the excess water from the roadbed 10, thereby preventing plant root diseases caused by excessive water accumulation, reducing soil erosion in the roadbed 10, and thus improving the structural stability of the roadbed 10. In addition, by controlling the irrigation device 30 and the drainage device 20 to selectively connect, the control device 40 can achieve remote monitoring and adaptive adjustment of the plant ecological roadbed system 100, significantly reducing labor maintenance costs, and thus efficiently and sustainably maintaining the structural stability of the roadbed 10.

[0034] According to the plant ecological roadbed system 100 of an embodiment of the present invention, the irrigation device 30 selectively connects with the drainage device 20, allowing water absorbed by the drainage device 20 to selectively flow into the irrigation device 30, so that the irrigation device 30 can irrigate the plants on the roadbed 10. This can effectively manage soil moisture, prevent plant root diseases caused by excessive water accumulation, reduce soil erosion in the roadbed 10, and avoid cracking of the roadbed 10 due to drought. This effectively balances the moisture content of the roadbed 10, protects the stability of the roadbed 10, and improves water resource utilization. The control device 40 is configured to control the selective connection between the irrigation device 30 and the drainage device 20 based on the moisture content of the roadbed 10, enabling remote monitoring and adaptive adjustment of the plant ecological roadbed system 100, significantly reducing manual maintenance costs, and thus efficiently and sustainably maintaining the structural stability of the roadbed 10.

[0035] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the drainage device 20 includes: a water absorption structure 21 and a drainage structure 22. The water absorption structure 21 is arranged in the roadbed 10 to absorb the internal moisture of the roadbed 10. The water absorption structure 21 is connected to the drainage structure 22 so that the drainage structure 22 discharges the moisture absorbed by the water absorption structure 21.

[0036] Among them, the water-absorbing structure 21 can be a geotextile structure, a water-absorbing concrete pavement structure, etc., and can be reasonably selected and set according to actual conditions, as long as the water-absorbing structure 21 can absorb water. The drainage structure 22 can include a drainage pipe 221, a drainage trough 222, a drainage ditch 223, etc., and can be reasonably set according to actual conditions. When the moisture content of the roadbed 10 is too high, the soil will gradually soften and the strength will decrease. In the rainy season or in areas with high groundwater levels, if the water cannot be discharged in time, the roadbed 10 will be like soaking in "mud soup" and the bearing capacity will be greatly reduced. The water-absorbing structure 21 is arranged in the roadbed 10 to absorb the internal moisture of the roadbed 10. The water-absorbing structure 21 is connected to the drainage structure 22 so that the drainage structure 22 discharges the moisture absorbed by the water-absorbing structure 21, which can effectively reduce the moisture content of the roadbed 10 soil, maintain the strength and stability of the roadbed 10 soil, and reduce the occurrence of diseases such as settlement and deformation of the roadbed 10.

[0037] In cold regions, moisture within the roadbed 10 freezes and expands in winter, causing the roadbed 10 to bulge and crack. The water-absorbing structure 21, in conjunction with the drainage structure 22, can reduce the free water content within the roadbed 10, lowering the likelihood of frost heave and preventing moisture accumulation within the roadbed 10. This protects the roadbed 10 structure from frost heave damage and extends the service life of the roadbed 10. A stable roadbed 10 is essential for ensuring pavement strength. The coordinated use of the water-absorbing structure 21 and the drainage structure 22 effectively controls moisture in the roadbed 10, allowing the roadbed 10 structure to evenly bear vehicle loads, avoiding stress concentration in the pavement caused by uneven settlement of the roadbed 10. This maintains the designed pavement strength and reduces the repair and maintenance costs of the roadbed 10.

[0038] According to some embodiments of the present invention, Figure 1 As shown, the drainage structure 22 includes: a drainage pipe 221 , a drainage groove 222 , and a drainage ditch 223 . The drainage groove 222 communicates with the drainage pipe 221 and the drainage ditch 223 , and the drainage pipe 221 communicates with the water absorption structure 21 .

[0039] Among them, the drainage pipe 221 can be buried in the soil of the roadbed 10. After the water-absorbing structure 21 absorbs the moisture in the soil in the roadbed 10, the moisture is quickly discharged into the drainage trough 222 through the drainage pipe 221 connected thereto. The drainage trough 222 can also be connected to the road surface of the roadbed 10 to collect water on the road surface. The drainage trough 222 serves as an intermediate connecting part, which can effectively collect water in the road surface and the drainage pipe 221 and guide it to the drainage ditch 223. The multi-level drainage device 20 ensures that water can be discharged from the roadbed 10 quickly and orderly, avoiding water accumulation in the roadbed 10, keeping the roadbed 10 in a relatively dry state, and preventing the roadbed 10 from softening and reducing its strength due to water accumulation. The drainage ditch 223 can be arranged along the bottom edge of the roadbed 10 and the bottom of the drainage ditch 223 is paved with gravel, which has a large accommodating space and drainage capacity. The drainage groove 222 introduces the water in the drainage pipe 221 into the drainage ditch 223. The drainage ditch 223 can effectively guide the water to a safe area to prevent the water from flowing back into the roadbed 10, so that the water content of the roadbed 10 is effectively controlled, and further avoids the stress concentration of the road surface caused by uneven settlement of the roadbed 10, thereby maintaining the design strength of the road surface and reducing the repair and maintenance costs of the roadbed 10.

[0040] According to some embodiments of the present invention, Figure 1 As shown, the roadbed 10 has a roadbed slope 11, and the roadbed slope 11 is formed with a drainage ditch 222 extending along a first direction. The drainage pipe 221 and the drainage ditch 223 both extend along a second direction. Along the first direction, the drainage pipe 221 is located above the drainage ditch 223, and the first direction and the second direction are perpendicular to each other in the plane where the slope surface of the roadbed slope 11 is located.

[0041] The first direction is Figure 1 The X direction in the second direction is Figure 1In the Y direction, the first and second directions are perpendicular to each other within the plane of the slope surface of the roadbed slope 11. The roadbed slope 11 is formed with a drainage trough 222 extending along a first direction, which extends to the road surface of the roadbed 10. This allows water on the road surface of the roadbed 10 to flow into the drainage trough 222, thereby funneling accumulated water onto the drainage trough 222. This effectively reduces the probability of waterlogging on the road surface and the likelihood of water overflowing onto the slope surface of the roadbed slope 11. This reduces the erosion of the soil on the slope surface of the roadbed slope 11 by accumulated water, reduces water and soil erosion on the slope surface, and thus effectively protects the stability of the roadbed 10. The drainage pipe 221 can be buried in the soil of the roadbed 10, and the drainage ditch 223 is located at a lower position below the roadbed slope 11. The drainage pipe 221 and the drainage ditch 223 both extend along the second direction. Along the first direction, the drainage pipe 221 is located above the drainage ditch 223. Along the second direction, the drainage pipe 221 can be distributed on both sides of the drainage trough 222. The drainage pipes 221 on both sides are connected to the drainage trough 222 to collect the water in the drainage pipe 221 into the drainage trough 222, and then the surface water of the roadbed 10 and the accumulated water in the soil of the roadbed 10 can be discharged from the drainage trough 222 to the drainage ditch 223, preventing water from flowing back into the roadbed 10, so that the moisture of the roadbed 10 is effectively controlled, reducing the erosion of the roadbed 10 by water, and extending the service life of the roadbed 10.

[0042] According to some embodiments of the present invention, Figure 1 and Figure 3 As shown, the irrigation device 30 can be constructed as an infiltration pipe network, which defines a plurality of plant planting areas and is selectively connected to the drainage pipe 221.

[0043] The infiltration pipe network can be buried in the soil of the roadbed slope 11, with a portion of the pipes left exposed outside the soil as an inspection port to facilitate later maintenance. The infiltration pipe network defines multiple planting areas, where deep-rooted herbs (such as vetiver) can be planted. Nodes in the infiltration pipe network, where water seepage is high, can be planted with waterlogging-resistant shrubs (such as Amorpha fruticosa). The infiltration pipe network is selectively connected to the drainage pipe 221, allowing water in the drainage pipe 221 to be transported to the infiltration pipe network and infiltrated into the soil near the plant roots, achieving precise irrigation. Compared with traditional irrigation methods, this significantly reduces water evaporation and loss, improving water resource utilization.

[0044] According to some embodiments of the present invention, Figure 1 and Figure 3As shown, the infiltration pipe network may include: a first branch pipe 31 and a second branch pipe 32, the first branch pipe 31 and the second branch pipe 32 are connected and both have seepage holes 33, the roadbed 10 has a roadbed slope 11, the first branch pipe 31 extends along a first direction, the second branch pipe 32 extends along a second direction, and at least one of the first branch pipe 31 and the second branch pipe 32 is selectively connected to the drainage pipe 221, and the first direction and the second direction are perpendicular to each other in the plane where the slope surface of the roadbed slope 11 is located.

[0045] The first branch pipe 31 and the second branch pipe 32 are connected and can each be formed with a water seepage hole 33. Multiple water seepage holes 33 can be formed on each of the first branch pipe 31 and the second branch pipe 32. The multiple water seepage holes 33 are evenly spaced, and the spacing between adjacent water seepage holes 33 can be set to 10 cm. This ensures that water can more evenly penetrate the surrounding soil, thereby maintaining relatively consistent soil moisture around the plant roots and creating a more stable environment for plant growth. Furthermore, the water seepage holes 33 are tilted toward the plant roots, with the tilt angle of the water seepage holes 33 set to 30°, allowing water to more directly and accurately penetrate the area where the plant roots are located. This ensures that water evenly penetrates around the plant roots, improving the adaptability and flexibility of the irrigation device 30.

[0046] The roadbed 10 has a roadbed slope 11, the first branch pipe 31 extends along a first direction, the second branch pipe 32 extends along a second direction, and at least one of the first branch pipe 31 and the second branch pipe 32 is selectively connected to the drainage pipe 221. In some embodiments of the present invention, the first branch pipe 31 can be selectively connected to the drainage pipe 221, or the second branch pipe 32 is selectively connected to the drainage pipe 221, or both the first branch pipe 31 and the second branch pipe 32 are selectively connected to the drainage pipe 221, as long as at least one of the first branch pipe 31 and the second branch pipe 32 is selectively connected to the drainage pipe 221.

[0047] The present invention is described using the example of selective connection between the first branch pipe 31 and the drainage pipe 221. By selectively connecting the first branch pipe 31 and the drainage pipe 221, water in the selective drainage pipe 221 can be transported to the first branch pipe 31. The first branch pipe 31 is connected to the second branch pipe 32, and the water in the soil of the roadbed 10 absorbed by the water-absorbing structure 21 can be used to infiltrate and irrigate plants on the roadbed slope 11. This achieves the recycling of water resources, reduces the consumption of fresh water sources, improves the efficiency of water resource utilization, reduces irrigation costs, and reduces the costs of purchasing water sources or extracting groundwater. Plants in the plant planting area receive water infiltration irrigation, which optimizes the plant growth environment and helps improve the survival rate and growth quality of the plants. Healthy plant growth can better stabilize the soil of the roadbed 10, reduce soil erosion, further improve the stability of the roadbed 10, and form a good ecological cycle.

[0048] According to some embodiments of the present invention, Figure 1 and Figure 3 As shown, there can be multiple first branch pipes 31 and multiple second branch pipes 32, multiple first branch pipes 31 are arranged in sequence along the second direction, and multiple second branch pipes 32 are arranged in sequence along the first direction. Each first branch pipe 31 is connected to multiple second branch pipes 32, and at least one first branch pipe 31 is selectively connected to the drainage pipe 221.

[0049] There may be multiple first branch pipes 31 and second branch pipes 32. The number of first branch pipes 31 and second branch pipes 32 may be two, three, or four, but the present invention is not limited thereto. Other numbers of first branch pipes 31 and second branch pipes 32 are also possible, as long as both are multiple. Multiple first branch pipes 31 are sequentially spaced apart and arranged along the second direction, and multiple second branch pipes 32 are sequentially spaced apart and arranged along the first direction. Each first branch pipe 31 is connected to multiple second branch pipes 32 to form an infiltration pipe network, and at least one first branch pipe 31 selectively connects to the drainage pipe 221. The number of first branch pipes 31 selectively connects to the drainage pipe 221 may be one, two, or three, but the present invention is not limited thereto. Other numbers of first branch pipes 31 selectively connect to the drainage pipe 221 are also possible, as long as at least one first branch pipe 31 selectively connects to the drainage pipe 221.

[0050] Thus, the water in the selective drainage pipe 221 can be transported to the first branch pipe 31, which is connected to the second branch pipe 32. The water in the soil of the roadbed 10 absorbed by the water-absorbing structure 21 can then be used to infiltrate the plants on the roadbed slope 11, thereby achieving the recycling of water resources, reducing the consumption of fresh water sources, improving the utilization efficiency of water resources, and reducing irrigation costs. At the same time, it also reduces the costs of purchasing water sources or extracting groundwater. The plants in the plant planting area receive water infiltration irrigation, which optimizes the plant growth environment and helps improve the survival rate and growth quality of the plants. The healthy growth of plants can better stabilize the soil of the roadbed 10, reduce soil erosion, further improve the stability of the roadbed 10, and form a good ecological cycle.

[0051] Furthermore, as a specific embodiment of the present invention, along the first direction, the spacing distance between any two adjacent second branches 32 among the multiple second branches 32 can be set to 1.5m, and along the second direction, the spacing distance between any two adjacent first branches 31 among the multiple first branches 31 can be set to 1m. The multiple second branches 32 and the multiple first branches 31 are orthogonal and connected to define an infiltration network. The setting density of the seepage holes 33 at the intersection of the second branches 32 and the first branches 31 can be greater than the density of the seepage holes 33 at the pipe bodies of the second branches 32 and the first branches 31 to ensure the irrigation intensity of the local plant planting area.

[0052] According to some embodiments of the present invention, the water-absorbing structure 21 may be constructed as a geotextile structure.

[0053] Among them, the water-absorbing structure 21 can be constructed as a geotextile structure. Specifically, the water-absorbing structure can be constructed as a wicking geotextile. The wicking geotextile is a composite material composed of a wicking layer, a filter layer and a protective layer. The wicking layer is made of high-strength fiber material and has a large surface area and porosity. It can quickly absorb moisture in the soil. The filter layer plays a role in screening and filtering impurities, and the protective layer is used to reinforce the overall structure. The wicking effect of the wicking geotextile quickly absorbs moisture in the soil and transfers it to the fabric surface through the capillary action of the fiber, thereby realizing efficient separation and transmission of soil and moisture.

[0054] The fiber structure of the wicking geotextile forms a certain water-conducting channel, which can drain the absorbed water along the drainage pipe 221, reduce the water content of the roadbed 10, and prevent the roadbed 10 from settling and deforming. The wicking geotextile has good filtering properties, can prevent soil particles from migrating with the water flow, can prevent fine particles in the soil from entering the drainage pipe 221, avoid clogging of the drainage pipe 221, and can also reduce soil erosion in the roadbed 10. The wicking geotextile interacts with the soil, which can improve the shear strength and overall stability of the soil. The geotextile also has a certain degree of flexibility and ductility, which can disperse stress when the soil is subjected to external forces and reduce stress concentration. When vehicle loads act on the road surface, the geotextile can transfer some of the stress to the surrounding soil, reducing the pressure locally borne by the roadbed 10 and preventing uneven settlement of the roadbed 10. In addition, compared with some other water-absorbing and drainage materials, the wicking geotextile is relatively low in cost, has a longer service life, and has low maintenance costs.

[0055] Furthermore, the wicking geotextile can be laid continuously in the main area of the roadbed 10, with each two adjacent wicking geotextiles overlapping and laid flat, and the overlap width of each two adjacent wicking geotextiles at the overlapping joint is greater than or equal to 20 cm (the upper limit value can be adjusted according to actual conditions) to provide sufficient overlapping area to form a reliable waterproof barrier, avoiding the problem of poor water leakage at the overlap or formation of water accumulation points due to loose overlap, ensuring the continuity of water absorption, effectively reducing the water content of the roadbed 10, and reducing water immersion and erosion of the roadbed 10.

[0056] According to some embodiments of the present invention, Figure 1 and Figure 2 As shown, the plant ecological roadbed system 100 may further include: a first valve body 50, wherein the first valve body 50 is connected between the infiltration pipe network and the drainage pipe 221, and the first valve body 50 is communicatively connected to the control device 40, and the control device 40 controls the first valve body 50 to selectively connect the irrigation device 30 and the drainage device 20.

[0057] Among them, the first valve body 50 can be a two-way valve, the infiltration pipe network and the drainage pipe 221 are connected by a flange and sealed by a sealing gasket, the first valve body 50 is connected between the infiltration pipe network and the drainage pipe 221, the first valve body 50 is communicated with the control device 40, and the control device 40 controls the first valve body 50 to selectively connect the irrigation device 30 and the drainage device 20.

[0058] When the moisture content of the roadbed 10 is higher than the preset value, the moisture in the roadbed 10 is relatively large, which can easily cause the roadbed 10 to soften, boil, frost heave and other diseases. The control device 40 controls the first valve body 50 to close so that the irrigation device 30 and the drainage device 20 are not connected, so that the drainage device 20 can discharge the excess moisture in the roadbed 10 in time, avoid plant root diseases caused by excessive water accumulation, and reduce soil erosion of the roadbed 10, thereby improving the structural stability of the roadbed 10.

[0059] When the moisture content of roadbed 10 is lower than or equal to a preset value, control device 40 controls first valve body 50 to open, connecting irrigation device 30 and drainage device 20. This allows water in drainage device 20 to flow into irrigation device 30, providing precise water supply for plants and ensuring the water they need for normal growth. Healthy plant growth can better stabilize the soil in roadbed 10, reduce soil erosion, further improve the stability of roadbed 10, and form a healthy ecological cycle. This enables remote monitoring and adaptive adjustment of plant ecological roadbed system 100, significantly reducing manual maintenance costs and enabling efficient and sustainable maintenance of the structural stability of roadbed 10.

[0060] According to some embodiments of the present invention, the control device 40 may include: a controller 41 and a detection mechanism 42, the controller 41 is communicatively connected with the detection mechanism 42 and the first valve body 50, the detection mechanism 42 is arranged in the roadbed 10 and is used to detect the moisture content in the roadbed 10, and the controller 41 is configured to control the first valve body 50 to open or close according to the detection information of the detection mechanism 42.

[0061] The controller 41 can be a computer, a PLC controller 41, etc., and the detection mechanism 42 can be a moisture sensor. The controller 41, the detection mechanism 42, and the first valve body 50 can all be connected via a wiring harness communication, or the controller 41, the detection mechanism 42, and the first valve body 50 can all be wirelessly connected. The present invention uses the example of a wiring harness communication connection between the controller 41, the detection mechanism 42, and the first valve body 50. There can be multiple detection mechanisms 42, and the multiple detection mechanisms 42 are evenly arranged near the water absorption structure 21 to monitor the moisture content of the roadbed 10 in real time and transmit the information to the controller 41. The controller 41 is configured to control the opening or closing of the first valve body 50 based on the detection information of the detection mechanism 42.

[0062] When the moisture content of the roadbed 10 is higher than a preset value, the water content in the roadbed 10 is high, which can easily cause roadbed 10 to soften, slurry, frost heave, and other diseases. The control device 40 controls the first valve body 50 to close, disconnecting the irrigation device 30 from the drainage device 20. This allows the drainage device 20 to promptly drain excess water from the roadbed 10, preventing plant root diseases caused by excessive water accumulation, while also reducing soil erosion in the roadbed 10 and thereby improving the structural stability of the roadbed 10. When the moisture content of the roadbed 10 is lower than or equal to a preset value, the control device 40 controls the first valve body 50 to open, connecting the irrigation device 30 and the drainage device 20. This allows water in the drainage device 20 to flow into the irrigation device 30, providing precise water supply for plants and ensuring the water required for normal plant growth. Healthy plant growth can better stabilize the soil in the roadbed 10, reduce soil erosion, further improve the stability of the roadbed 10, and form a healthy ecological cycle. As a result, remote monitoring and adaptive adjustment of the plant ecological roadbed system 100 can be achieved, which significantly reduces the cost of manual maintenance, and thus can efficiently and sustainably maintain the structural stability of the roadbed 10 .

[0063] Furthermore, as a specific embodiment of the present invention, the controller 41 may be provided with a preset value for the initial moisture content of the roadbed 10. Since the uncertainty of the weather leads to different rainfall amounts, the preset value for the moisture content of the roadbed 10 may be intelligently adjusted by the controller 41 every quarter. For example, when the rainfall is large during the rainy season, the preset value for the initial moisture content of the roadbed 10 may be increased by 5%; when the rainfall is small during the dry season, the preset value for the initial moisture content of the roadbed 10 may be decreased by 3%. This ensures that the roadbed 10 is always in an appropriate moisture state, thereby improving the timeliness and effectiveness of the drainage device 20 and the infiltration irrigation device.

[0064] During construction, debris, loose soil, and loose rock within the roadbed 10 area are removed, and the base of the roadbed 10 is leveled and compacted to the designed elevation, with a compaction degree greater than 95%. Weak foundations are replaced or reinforced with gravel piles to ensure a bearing capacity greater than 150 kPa. Subsequently, wicking geotextiles are continuously laid flat, with the overlaps hot-melt-bonded. The roadbed 10 is backfilled and compacted in layers using graded gravel or modified silty soil. Each layer is less than 30 cm thick and 20 cm thick after compaction, with a compaction degree greater than 93%. Multiple first branch pipes 31 and second branch pipes 32 are orthogonally connected to form a grid, and the pipe connections are sealed to prevent leaks, thereby defining a permeable pipe network within the roadbed slope 11. A detection mechanism 42 (moisture sensor) is buried near the wicking geotextile, and the wire is passed through the sheath pipe and led to the controller 41 intelligent terminal. The first valve body 50 (two-way valve) is installed at the intersection of the drainage pipe 221 and the first branch pipe 31 and is located higher than the highest point of the infiltration network. Deep-rooted plants are planted in the grid unit, and the roots of the plants are dipped in rooting powder and then covered with soil and compacted. Waterlogging-resistant shrubs are mixed at the node where the first branch pipe 31 and the second branch pipe 32 are connected and covered with water-retaining agent.

[0065] Therefore, through the plant ecological roadbed system 100 of the present invention, a closed-loop system of "drainage-reuse" of water in the roadbed 10 can be realized. Through the intelligent control of the controller 41, the excess water inside the roadbed 10 can be efficiently discharged and converted into water required for plant growth, realizing the coordinated circulation of engineering drainage and ecological water use. Under heavy rain conditions, the system quickly discharges saturated soil moisture to maintain the stability of the roadbed 10. Under drought conditions, the water absorbed by the water absorption structure 21 is accurately returned to the plant root area through the infiltration pipe network, which not only avoids the waste of water resources in the traditional drainage structure 22, but also enhances the anti-skid ability of the roadbed slope 11 through the biological reinforcement effect of plants. The "water-based soil treatment and water-based greening" model not only solves the contradiction between water disasters and ecological degradation faced by the roadbed 10 for a long time, but also significantly reduces the demand for irrigation water, while improving the durability of the project and the efficiency of ecological restoration, providing a resource recycling and environmentally friendly technical path for projects such as highways and roadbed slopes 11.

[0066] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A plant ecological roadbed system, characterized in that: include: roadbed; a drainage device, at least part of which is disposed within the roadbed, and configured to absorb and discharge moisture from the roadbed; an irrigation device, at least a portion of which is disposed within the roadbed, the irrigation device being selectively connected to the drainage device so that water absorbed by the drainage device selectively flows into the irrigation device, thereby irrigating the plants on the roadbed; A control device is configured to control the irrigation device and the drainage device to selectively communicate according to the moisture content of the roadbed.

2. The plant ecological roadbed system according to claim 1, characterized in that: The drainage device includes: a water absorption structure and a drainage structure. The water absorption structure is arranged in the roadbed to absorb the internal moisture of the roadbed. The water absorption structure is connected to the drainage structure so that the drainage structure discharges the moisture absorbed by the water absorption structure.

3. The plant ecological roadbed system according to claim 2, characterized in that: The drainage structure includes a drainage pipe, a drainage trough, and a drainage ditch. The drainage trough is connected to the drainage pipe and the drainage ditch, and the drainage pipe is connected to the water absorption structure.

4. The plant ecological roadbed system according to claim 3, characterized in that: The roadbed has a roadbed slope, and the roadbed slope is formed with the drainage ditch extending along the first direction. The drainage pipe and the drainage ditch both extend along the second direction. Along the first direction, the drainage pipe is located above the drainage ditch, and the first direction and the second direction are perpendicular to each other in the plane where the slope surface of the roadbed slope is located.

5. The plant ecological roadbed system according to claim 3, characterized in that: The irrigation device is constructed as an infiltration pipe network, which defines a plurality of plant planting areas and is selectively connected to the drainage pipe.

6. The plant ecological roadbed system according to claim 5, characterized in that: The infiltration pipe network includes: a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are connected and both have seepage holes, the roadbed has a roadbed slope, the first branch pipe extends along a first direction, the second branch pipe extends along a second direction, and at least one of the first branch pipe and the second branch pipe is selectively connected to the drainage pipe, and the first direction and the second direction are perpendicular to each other in the plane where the slope surface of the roadbed slope is located.

7. The plant ecological roadbed system according to claim 6, characterized in that: There are multiple first branch pipes and multiple second branch pipes, and the multiple first branch pipes are arranged in sequence along the second direction at intervals, and the multiple second branch pipes are arranged in sequence along the first direction at intervals. Each first branch pipe is connected to multiple second branch pipes, and at least one first branch pipe is selectively connected to the drainage pipe.

8. The plant ecological roadbed system according to claim 2, characterized in that: The water absorbing structure is a geotextile structure.

9. The plant ecological roadbed system according to any one of claims 5 to 7, characterized in that: Also includes: A first valve body is connected between the infiltration pipe network and the drainage pipe. The first valve body is in communication with the control device. The control device selectively connects the irrigation device and the drainage device by controlling the first valve body.

10. The plant ecological roadbed system according to claim 9, characterized in that: The control device includes: a controller and a detection mechanism, the controller is communicatively connected to the detection mechanism and the first valve body, the detection mechanism is arranged in the roadbed and is used to detect the moisture content in the roadbed, and the controller is configured to control the opening or closing of the first valve body according to the detection information of the detection mechanism.

Images