Reinforced drainage integrated embankment

Abstract

The utility model discloses a reinforcement drainage integrated embankment, which comprises an embankment main body structure, geogrids, graphite felts, a humidity detector, a humidity sensor and a control assembly, the embankment main body structure comprises a roadbed bed, a plurality of roadbed layers and a plurality of geogrids, and each geogrid comprises a water absorption and drainage geotextile layer, a drainage net layer and a reinforcement geotextile layer. A plurality of drainage hole channels are formed in the reinforced geotechnical cloth layer, conductive carbon fibers are arranged in the reinforced geotechnical cloth layer, the graphite felt is arranged on the roadbed layer, the humidity sensor is connected with the control assembly through the humidity detector, and the control assembly controls the graphite felt and the geogrid to drain water according to detection data. The geogrid disclosed by the utility model not only has a good reinforcement function, but also has a real-time directional drainage function and a low-volume heating function, so that the water content in the embankment can be reduced, the problem of frost heaving of the embankment caused by freezing of water in a soil body in winter is avoided, the durability and the stability of the embankment are improved, and the deformation risk is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of highway engineering, and in particular relates to a reinforced drainage integrated embankment. Background Art

[0002] In areas with heavy rainfall, rainwater is difficult to drain after seeping into the roadbed structure. The compressive strength and shear strength of the roadbed filler decrease when soaked by rainwater, resulting in uneven settlement of the roadbed. The embankment slope is easily damaged by the impact of rainwater, causing soil and water loss and even slope damage.

[0003] Currently, two technologies are commonly used for roadbed drainage. One involves constructing drainage facilities above and below ground. Through the coordinated operation of side ditches, drains, culverts, and seepage wells, rainwater, slope runoff, and meltwater are channeled and drained away from the roadbed. The other involves designing the roadbed structure itself, installing a water-blocking layer within the structure to prevent seepage. Furthermore, embankment construction often uses reinforcing materials such as geogrids and geotextiles to reinforce the embankment. For example, the invention patent with authorization publication number CN117403495B discloses an embankment drainage structure, which includes an embankment main structure, multi-layer geogrids laid within the embankment main structure, graphite carbon felt disposed on the top surface of the embankment main structure, multiple moisture content meters installed within the embankment main structure, and a control component. The control component is connected to the graphite carbon felt and the multi-layer geogrids via wires, and the control component is connected to the multiple moisture content meters by signals. The control component is used to control the graphite carbon felt and geogrid to form an electric field based on the detection data of the moisture content meters, so as to quickly drain water through the first and second drainage channels of the geogrid. However, this drainage structure is not directional, which can easily cause water to accumulate within the embankment drainage pipe. The ribs have a small amount of water flow, which may cause drainage difficulties during heavy rainfall. Utility Model Content

[0004] The purpose of the utility model is to provide a reinforced drainage integrated embankment to solve the problems of short service life and poor performance of the embankment caused by water abundance inside the embankment and freeze-thaw cycles.

[0005] To achieve the above-mentioned purpose, the utility model provides a reinforced drainage integrated embankment, including an embankment main structure, a geogrid, a graphite felt, a humidity detector, a humidity sensor and a control component. The embankment main structure includes a roadbed and a multi-layer roadbed layer stacked from bottom to top on the roadbed, a layer of the geogrid is laid between two adjacent roadbed layers and between the bottommost roadbed layer and the roadbed, the geogrid includes a drainage geotextile layer at the top, a three-dimensional drainage mesh layer in the middle and a reinforced geotextile layer at the bottom, the reinforced geotextile layer is provided with a non-drainage area in the middle and two drainage areas on both sides of the non-drainage area, each of the drainage areas is provided with a plurality of drainage channels, the reinforced Conductive carbon fibers are arranged in the geotextile layer, and the resistance of the conductive carbon fibers decreases with the direction of water flow in the drainage channel, and the resistance of the conductive carbon fibers in the multiple layers of reinforced geotextile layers increases layer by layer from bottom to top; the graphite felt is laid on the topmost roadbed layer; the number of humidity sensors is the same as the number of layers of the geogrid, and multiple humidity sensors are arranged one-to-one in the non-drainage area of ​​the multiple layers of the geogrid, and the multiple humidity sensors are respectively connected to the humidity detector, and the control component is respectively connected to the humidity detector, the graphite felt and the multiple layers of the geogrid, and the control component receives the detection data sent by the humidity detector, and controls the graphite felt and the geogrid to perform electroosmosis drainage according to the received detection data.

[0006] Furthermore, a plurality of drainage channels arranged at intervals along the extension direction of the embankment are symmetrically provided on both sides of the top surface of the reinforced geotextile layer, and the drainage channels extend from the middle part of the embankment to one side of the embankment; a reinforcing belt arranged along the width direction of the embankment is provided in the reinforced geotextile layer and between two of the drainage channels; a plurality of roller-shaped protrusions arranged along the width direction of the embankment are provided at the bottom of the reinforced geotextile layer for increasing the friction between the reinforced geotextile layer and the roadbed base or roadbed layer.

[0007] Furthermore, the three-dimensional drainage net layer includes a three-dimensional plastic net, a filter geotextile is provided on the top surface of the three-dimensional plastic net, and an anti-seepage geomembrane is provided on the bottom surface of the three-dimensional plastic net.

[0008] Furthermore, the absorption and drainage geotextile layer is woven from threads containing wicking fibers, and has capillary perforations inside for improving the absorption and drainage strength.

[0009] Furthermore, the integrated embankment also includes drainage components and slope vegetation layers arranged on both sides of the embankment main structure; the drainage components include multiple drainage pipes, drainage ditches and drainage geotextile laying layers, the drainage ditches are arranged on the roadbed base, each of the drainage pipes is connected one by one to the drainage outlets of the multiple layers of geogrids, and the lower end of the drainage pipe is arranged in the drainage ditch, which is used to introduce the water enriched in the drainage channel into the drainage ditch and finally discharge it to the outside of the embankment; the drainage geotextile layer is placed above the drainage pipe and continuously laid to the bottom of the slope vegetation layer soil; the slope vegetation layer covers the drainage geotextile laying layer.

[0010] Furthermore, the drainage pipe is provided with a plurality of adapters which are respectively connected to the multiple layers of the geogrid.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] (1) The utility model provides a reinforced drainage integrated embankment, which includes an embankment main structure, geogrid, graphite felt, humidity detector, humidity sensor and control component. By improving the geogrid, the geogrid not only has a good reinforcement function, but also has a real-time directional drainage function and a small amount of heat generation effect, which can reduce the water content in the embankment, avoid the frost heave problem of the embankment caused by water freezing in the soil in winter, improve the durability and stability of the embankment, and reduce the risk of deformation.

[0013] (2) The utility model is a reinforced drainage integrated embankment, which adopts a drainage method that combines longitudinal electroosmosis water absorption with directional drainage under capillary action to improve the drainage efficiency of accumulated water in the embankment; it adopts unevenly distributed resistance to form a relative electrode difference, further promoting the downward discharge of water to both sides; the reinforcement strips are made of wicking fiber woven geotextile and a three-dimensional drainage network structure to ensure drainage performance during high rainfall.

[0014] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a reinforced drainage integrated embankment structure of the utility model;

[0017] Figure 2This is a schematic top view of the structure of the suction and drainage geotextile in the geogrid of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the geogrid of the present utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the geogrid of the present utility model;

[0020] Figure 5 This is a schematic diagram of the interface between the geogrid and the drainage pipe of the utility model;

[0021] Among them, 1-main structure of embankment; 1.1-roadbed base; 1.2-roadbed layer; 2-geogrid; 2.1-water absorption and drainage geotextile layer; 2.2-three-dimensional drainage net layer; 2.21-three-dimensional plastic net; 2.22-filter geotextile; 2.23-anti-seepage geomembrane; 2.3-reinforced geotextile layer; 2.31-non-drainage area; 2.32-drainage area; 2.3a-drainage channel; 2.3b-reinforcement belt; 2.3c-roller-shaped protrusion; 3-graphite felt; 4-humidity detector; 5-humidity sensor; 6-drainage component; 6.1-drainage pipe; 6.2-drainage ditch; 6.3-transfer interface; 6.4-connecting bolt; 7-slope vegetation layer. DETAILED DESCRIPTION

[0022] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0023] See also Figures 1 to 5 The utility model provides a reinforced drainage integrated embankment, including an embankment main structure 1, a geogrid 2, a graphite felt 3, a humidity detector 4, a humidity sensor 5 and a control component. The specific structure is as follows:

[0024] The main embankment structure 1 gradually decreases in width as it rises, resulting in a trapezoidal cross-section. The main embankment structure 1 comprises a roadbed 1.1 and four roadbed layers 1.2, each of which is a fill layer. The four roadbed layers 1.2 are sequentially laid on the roadbed 1.1 from bottom to top. A geogrid 2 is laid between two adjacent roadbed layers 1.2 and between the bottommost roadbed layer 1.2 and the roadbed subgrade 1.1. The geogrid 2 comprises a top drainage geotextile layer 2.1, a middle three-dimensional drainage mesh layer 2.2, and a bottom reinforced geotextile layer 2.3. The reinforced geotextile layer 2.3 is provided with a central non-drainage area 2.31 and two drainage areas 2.32 on either side of the non-drainage area 2.31. Each drainage area 2.32 is provided with a plurality of drainage channels 2.3a. The drainage channels are composed of multiple identical units. The inner walls of each unit form symmetrical, smooth curves that converge inward, gradually reducing the channel cross-section. This creates a capillary action that directs water flowing into the drainage channels in a specific direction. Conductive carbon fibers with uneven resistance are embedded within the reinforced geotextile layer 2.3. The resistance of these fibers decreases as the water flows through the drainage channel 2.3a. This results in higher resistance in the middle and lower resistance at the ends. This increases the charge in the direction of the water flow during energization. The higher resistance sections generate a small amount of heat during energization, thus preventing frost heave caused by freezing water in the soil during winter. Furthermore, the resistance of the conductive carbon fibers within the four layers of reinforced geotextile 2.3 increases from bottom to top, enhancing the freezing resistance of the embankment's surface, which is more prone to ice formation. The graphite felt 3 is laid on the topmost roadbed layer 1.2; the number of humidity sensors 5 is the same as the number of layers of the geogrid 2, and multiple humidity sensors 5 are arranged one-to-one in the non-drainage area 2.31 in the multi-layer geogrid 2. The multiple humidity sensors 5 are respectively connected to the humidity detector 4, and the control component is respectively connected to the humidity detector 4, the graphite felt 3 and the multi-layer geogrid 2. The control component receives the detection data sent by the humidity detector 4, and controls the graphite felt 3 and the geogrid 2 to perform electroosmosis drainage according to the received detection data.

[0025] See also Figures 2 to 4The absorption and drainage geotextile layer 2.1 is woven from warp and weft threads containing wicking fibers, with capillary perforations formed between the warp and weft threads, effectively improving the absorption and drainage strength. The three-dimensional drainage mesh layer 2.2 is composed of a three-dimensional plastic mesh 2.21 with an anti-filtration geotextile 2.22 bonded to one side, and an anti-seepage geomembrane 2.23 bonded to the other side, that is, the top surface of the three-dimensional plastic mesh 2.21 is provided with an anti-filtration geotextile 2.22, and the bottom surface of the three-dimensional plastic mesh 2.21 is provided with an anti-seepage geomembrane 2.23. This structural setting can enhance the absorption and drainage performance of the ribs, and at the same time, provide a buffer for the drainage channel when the drainage volume is large, reducing the drainage pressure. The reinforced geotextile layer 2.3 is woven from high-modulus yarn (polypropylene fiber, polyester filament, polyester filament, etc.), has high tensile strength, can effectively prevent soil creep, and maintain the anti-filtration effect for a long time. The top surface of the reinforced geotextile layer 2.3 is symmetrically arranged on both sides, spaced along the embankment's extension direction. Drainage channels 2.3a extend from the middle of the embankment to one side. Symmetrical unidirectional channels are provided to direct the movement of concentrated water from the center of the geotextile to the sides through capillary action. Within the reinforced geotextile layer 2.3, and between the two drainage channels 2.3a, a reinforcing rib 2.3b is provided along the width of the embankment to enhance the reinforcement performance of the ribs. The bottom of the reinforced geotextile layer 2.3 is provided with several roller-shaped protrusions 2.3c, arranged along the width of the embankment, to increase friction between the reinforced geotextile layer 2.3 and the roadbed subgrade 1.1 or roadbed layer 1.2, thereby ensuring friction between the geotextile and the soil. When the humidity detector detects data less than or equal to the preset value, the embankment structure mainly absorbs and drains water through the drainage geotextile containing wicking fibers on the top of the geogrid 2, and the excess water will enter the middle and bottom geotextile layers to produce directional drainage; when the humidity detector detects data greater than the preset value, the graphite felt 3 is positively charged and the geogrid 2 is negatively charged through the control component. Since the resistance of the geogrid 2 laid along the height direction increases, a charge difference will be formed between the two adjacent layers of geogrid 2, ensuring that the moisture in the soil moves to the lower geotextile with more negative charge; similarly, in the extension direction of the geotextile, due to the different resistances, the moisture in the soil will move from the middle to the two ends.

[0026] In a specific embodiment, the integrated embankment further comprises drainage components 6 and slope vegetation layers 7 arranged on both sides of the main structure 1 of the embankment. The drainage components 6 comprise a plurality of drainage pipes 6.1 and drainage ditches 6.2. The drainage ditches 6.2 are arranged on the roadbed 1.1. Each drainage pipe 6.1 is provided with a plurality of adapters respectively connected to the multi-layer geogrid 2. Each drainage pipe 6.1 is connected to the drainage outlet of the multi-layer geogrid 2 one by one. The lower end of the drainage pipe 6.1 is arranged in the drainage ditch 6.2 to guide the water enriched in the drainage channel 2.3a into the drainage ditch 6.2 and finally discharge it to the outside of the embankment. Figure 5The figure shows the adapter 6.3 between the reinforcement strip 2.3b and the drainage pipe 6.1. The main portion of the adapter is made of waterproof material. The portion where it connects to the reinforcement strip 2.3b is made of a waterproof material with lower rigidity. Connecting bolts 6.4 secure one end of the reinforcement strip 2.3b inside. The other side is a funnel-shaped waterproof material with slightly higher rigidity. This connects to the drainage pipe 6.1, allowing water in the reinforcement strip 2.3b to flow through the adapter. The geogrid's drainage geotextile 2.1 will be placed above the drainage pipe and continuously laid below the slope vegetation layer 7, dissipating water through root absorption and transpiration. The slope vegetation layer 7 overlies the drainage geotextile layer.

[0027] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A reinforced drainage integrated embankment, characterized in that: The invention comprises an embankment main structure (1), a geogrid (2), a graphite felt (3), a humidity detector (4), a humidity sensor (5) and a control component. The embankment main structure (1) comprises a roadbed (1.1) and a multi-layer roadbed layer (1.2) stacked from bottom to top on the roadbed (1.1). A layer of the geogrid is laid between two adjacent roadbed layers (1.2) and between the bottommost roadbed layer (1.2) and the roadbed (1.1). A geogrid (2), wherein the geogrid (2) comprises a drainage geotextile layer (2.1) at the top, a three-dimensional drainage mesh layer (2.2) in the middle, and a reinforced geotextile layer (2.3) at the bottom, wherein the reinforced geotextile layer (2.3) is provided with a non-drainage area (2.31) in the middle and two drainage areas (2.32) on both sides of the non-drainage area (2.31), and each drainage area (2.32) is provided with a plurality of drainage channels (2.3a). Conductive carbon fibers are provided in the reinforced geotextile layer (2.3), and the resistance of the conductive carbon fibers decreases with the direction of water flow in the drainage channel (2.3a), and the resistance of the conductive carbon fibers in the multiple layers of reinforced geotextile layers (2.3) increases layer by layer from bottom to top; the graphite felt (3) is laid on the topmost roadbed layer (1.2); the number of the humidity sensors (5) is the same as the number of layers of the geogrid (2), and the plurality of humidity sensors (5) are arranged one-to-one in the non-drainage area (2.31) of the multiple layers of the geogrid (2); the plurality of humidity sensors (5) are respectively connected to the humidity detector (4), the control component is respectively connected to the humidity detector (4), the graphite felt (3) and the multiple layers of the geogrid (2), the control component receives the detection data sent by the humidity detector (4), and controls the graphite felt (3) and the geogrid (2) to perform electroosmosis drainage according to the received detection data.

2. The reinforced drainage integrated embankment according to claim 1, characterized in that: A plurality of drainage channels (2.3a) are symmetrically arranged on both sides of the top surface of the reinforced geotextile layer (2.3) and are spaced apart along the extension direction of the embankment. The drainage channels (2.3a) extend from the middle of the embankment to one side of the embankment. A reinforcement belt (2.3b) is arranged along the width direction of the embankment within the reinforced geotextile layer (2.3) and between two of the drainage channels (2.3a). The bottom of the reinforced geotextile layer (2.3) is provided with a plurality of roller-shaped protrusions (2.3c) arranged along the width direction of the embankment and used to increase friction between the reinforced geotextile layer (2.3) and the roadbed (1.1) or the roadbed layer (1.2).

3. The reinforced drainage integrated embankment according to claim 1, characterized in that: The three-dimensional drainage net layer (2.2) comprises a three-dimensional plastic net (2.21), a filter geotextile (2.22) is provided on the top surface of the three-dimensional plastic net (2.21), and an anti-seepage geomembrane (2.23) is provided on the bottom surface of the three-dimensional plastic net (2.21).

4. The reinforced drainage integrated embankment according to claim 1, characterized in that: The absorption and drainage geotextile layer (2.1) is woven from threads containing wicking fibers, and has capillary perforations inside for improving the absorption and drainage strength.

5. The reinforced drainage integrated embankment according to claim 1, characterized in that: The integrated embankment further comprises drainage components (6) and a slope vegetation layer (7) arranged on both sides of the embankment main structure (1); the drainage component (6) comprises a plurality of drainage pipes (6.1) and drainage ditches (6.2) and a drainage geotextile paving layer (6.3); the drainage ditches (6.2) are arranged on the roadbed base (1.1); each drainage pipe (6.1) is connected one by one to the drainage outlet of the multiple layers of geogrid (2); the lower end of the drainage pipe (6.1) is arranged in the drainage ditch (6.2) and is used to introduce the water enriched in the drainage channel (2.3a) into the drainage ditch (6.2) and finally discharge it outside the embankment; the drainage geotextile layer (2.1) is placed above the drainage pipe (2.3a) and continuously laid to the bottom of the soil of the slope vegetation layer (7); the slope vegetation layer (7) covers the drainage geotextile paving layer.

6. The reinforced drainage integrated embankment according to claim 5, characterized in that: The drainage pipe is provided with a plurality of adapters respectively connected to the multiple layers of the geogrid (2).

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