Road slope protection structure

Abstract

The utility model relates to the field of slope protection, in particular to a road slope protection structure which comprises a base layer, a slope body and a drainage channel, the base layer comprises a reinforced soil layer, a gravel layer, a concrete layer and a cement layer which are sequentially arranged from bottom to top, the slope body is arranged on the upper side of the base layer, and the drainage channel is arranged on the slope bottom side of the slope body. A plurality of water collecting pipes are arranged at the bottoms of the side walls, close to the slope, of the drainage grooves, concrete grids are arranged on the surface of the slope body and comprise a plurality of grid grooves, a plurality of through holes distributed in an array mode are formed in the bottoms in the grid grooves, the through holes are communicated with the water collecting pipes through sewer pipes, and greening layers are arranged in the grid grooves. According to the road slope protection structure, by arranging the sewer pipe, the water collecting pipe and the drainage groove, rainwater collection and utilization are achieved, greening water and soil loss caused by rainwater washing is reduced, and later maintenance of vegetation is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slope protection, specifically is a highway slope protection structure. BACKGROUND

[0002] Highway construction process can produce the slope, this kind of slope is usually surface bare, site condition is poor, geology is unstable, water and soil loss is serious, ecological system is difficult to recover, especially the problem of stone slope is more prominent, so in the road construction will utilize numerous technical schemes, according to different geological conditions selects the best scheme to protect the ecology of slope.

[0003] The prior art slope protection structure, the gravity is placed on the reinforcement of slope mostly, but in the rainy season, a large amount of rainwater acts on the highway subgrade slope protection structure for a long time, is easy to cause the water and soil loss of planting greening, and a large amount of water resources is also wasted, is not favorable to the maintenance and management of later greening. UTILITY MODEL CONTENT

[0004] In view of the above insufficient of prior art, the utility model provides a highway slope protection structure.The highway slope protection structure can collect rainwater, reduce the water and soil loss caused by water flow scouring, be used for the greening water supplement of later period, and improve the water resource utilization rate.

[0005] To realize the above-mentioned purpose, the technical scheme that the utility model adopts is as follows: a highway slope protection structure, the highway slope protection structure includes: base layer, slope body and drainage groove, the base layer is arranged from bottom to top reinforcing soil layer, gravel layer, concrete layer and cement layer in proper order, the slope body is arranged on the upside of the base layer, the drainage groove is arranged on the slope bottom side of the slope body, a plurality of water collecting pipes are arranged on the bottom of the side wall near the slope body of the drainage groove, the surface of the slope body is provided with a concrete grid, the concrete grid includes a plurality of grid slots, a plurality of array distribution through holes are arranged in the bottom of the grid slot, the through hole is communicated with the water collecting pipe through the downcomer, and the grid slot is provided with a greening layer.

[0006] Preferably, the greening layer includes a filter plate, a soil layer inner layer, a slow-release fertilizer layer and a soil layer surface layer from bottom to top in proper order.

[0007] Preferably, the top of the drainage groove is provided with a cover plate with arrayed long holes, and the cover plate is a modular prefabricated plate.

[0008] Preferably, the long hole of the cover plate is provided with a galvanized steel filter grid.

[0009] Preferably, the downcomer is provided with a spiral capillary drainage belt, and the capillary drainage belt extends into the soil layer above and the water collecting pipe bottom below.

[0010] Preferably, the soil layer surface layer is provided with grass seeds.

[0011] The advantages of this utility model compared with the prior art are:

[0012] 1. This highway slope protection structure can promptly drain rainwater vertically into the collection pipe through the drainage pipe, preventing the turbulent rainwater from eroding and damaging the green vegetation on the slope, affecting the aesthetics of the green vegetation, and reducing the later maintenance costs.

[0013] 2. This highway slope protection structure can collect rainwater through drainage channels, which can save water resources and improve the utilization rate of water resources;

[0014] 3. This highway slope protection structure can draw water from the collection pipe to the green layer through the capillary drainage belt in the drainage pipe. During drought, it can replenish water to the green vegetation, improve the survival rate of the vegetation, and reduce the manpower and material input for greening maintenance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a side view of the internal structure of this utility model;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Base layer; 11. Reinforced soil layer; 12. Crushed stone layer; 13. Concrete layer; 14. Cement layer; 2. Slope; 21. Concrete grid; 211. Grid groove; 3. Drainage trough; 31. Cover plate; 4. Water collection pipe; 5. Drainage pipe; 6. Green layer; 61. Filter plate; 62. Soil layer; 63. Slow-release fertilizer layer; 7. Capillary drainage strip. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments, as shown in the attached drawings. Figures 1-3 As shown, a highway slope protection structure includes a composite base layer 1, a slope 2, and a drainage ditch 3. The base layer 1 includes, from bottom to top, a reinforced soil layer 11, a crushed stone layer 12, a concrete layer 13, and a cement layer 14. The reinforced soil layer 11 is made of lime-soil and compacted in layers by a 20t vibratory roller, with a compaction degree ≥95%. The crushed stone layer 12 is made of graded crushed stone with a thickness of 150mm and a porosity ≤28%. The concrete layer 13 is made of C25 concrete with an internal two-way steel mesh. The cement layer 14 is made of a 3% polyurethane waterproof membrane. All structural layers are laid horizontally, and an interface agent is set between the layers to enhance the bonding strength, forming a continuous waterproof membrane layer to prevent water infiltration, enhance the stability and durability of the base layer 1 and the slope 2, reduce the risk of settlement, and reduce soil erosion in the surrounding area.

[0023] The base layer 1 is above the slope 2, which is constructed by layered backfilling and compaction to enhance its stability. A concrete grid 21 protection system is installed on the surface: it adopts a diamond grid arrangement with a unit size of 1000x1000mm, a rib width of 150mm, and a rib height of 120mm. The bottom of the grid groove 211 is provided with permeable holes with a diameter of 50mm, and the holes are arranged in an array with a spacing of 300mm. It is connected to the water collection pipe 4 through a PVC drainage pipe 5. The green layer 6 is laid in the grid groove 211. The green layer 6 includes, from bottom to top, a geogrid filter plate with a pore size of 0.15mm 61, a 300mm planting soil layer 62, a 50mm thick slow-release fertilizer layer 63, and a 50mm topsoil layer, which creates a growth environment for green vegetation and reduces soil erosion. Grass seeds are placed in the topsoil layer and sown by hydroseeding to increase vegetation density and reduce the risk of replanting due to low survival rate of transplanted turf.

[0024] Drainage trough 3 is set on the bottom side of slope 2. Several horizontal cylindrical holes are drilled near the bottom of the slope sidewall of drainage trough 3. Water collection pipe 4 is placed in the cylindrical holes. Vertical holes are drilled in slope 2 along the permeable holes of the grid groove, and drain pipe 5 is installed so that drain pipe 5 is vertically connected to water collection pipe 4. Rainwater infiltrates through grid groove 211, the permeable holes intercept the rainwater, and it enters water collection pipe 4 along drain pipe 5, flows into drainage trough 3 for storage and transportation, and is discharged into river dam for storage. This reduces rainwater evaporation and can be used for agricultural irrigation, etc., improving the utilization rate of water resources and reducing the loss of soil and greening due to the accelerated flow rate after rainwater collection.

[0025] Specifically, the top of the drainage ditch 3 is equipped with a cover plate 31. The cover plate 31 is a modular prefabricated plate with an array of elongated holes, inside which are installed galvanized steel filter grilles. This provides support, facilitates movement for maintenance personnel, and allows for easy opening of the cover plate 31 for cleaning the drainage ditch 3. It also reduces water evaporation from the drainage ditch 3, improving water resource utilization. Simultaneously, the galvanized steel filter grilles ensure rainwater flows into the drainage ditch 3 while preventing debris such as leaves from clogging the waterways, thus ensuring the drainage ditch 3 remains unobstructed.

[0026] Specifically, the drain pipe 5 is equipped with a spirally arranged capillary drainage strip 7. Utilizing capillary action, when soil moisture exceeds a certain limit, the capillary automatically absorbs excess water and discharges it into the collection pipe 4. When soil moisture is insufficient, the capillary releases stored water. The upper part of the capillary drainage strip 7 extends into the soil layer 62, and the lower part extends into the bottom of the collection pipe 4. During periods of abundant rainfall, the capillary drainage strip 7 can promptly drain excess water from the soil layer 62, ensuring the vegetation is in a suitable soil condition. In a dry environment, water from a nearby river is pumped into a drainage trough 3 and then flows into a collection pipe 4. The water in the drainage trough 3 submerges the collection pipe 4, causing the bottom of the capillary drainage belt 7 to be submerged in water. The capillary drainage belt 7 utilizes the surface tension of water molecules to achieve reverse water transport, drawing water from the collection pipe 4 to the soil layer 62, maintaining the soil moisture content of the soil layer 62, providing water replenishment for vegetation, and improving the survival rate of vegetation. The spiral arrangement can increase the water absorption and storage capacity, improve the water absorption and drainage efficiency, and reduce the maintenance cost of green vegetation.

[0027] In summary, this highway slope protection structure improves overall stability by laying a base layer 1 and a slope 2. Drilling holes in the slope 2 to install water collection pipes 4 and drainage pipes 5 allows for timely drainage through the drainage pipes 5 and collection pipes 4 into a drainage ditch 3 during periods of abundant rainfall. This prevents water from entering the slope 2 and causing landslides, and also prevents rainwater erosion from damaging vegetation, thus extending the slope's lifespan. Furthermore, during droughts, external water sources can be introduced into the drainage ditch 3, and the water enters the collection pipes 4, where it is then channeled to the soil layer 62 via capillary drainage belts 7 to replenish the vegetation, improving water resource utilization and reducing vegetation maintenance costs.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. The scope of this invention is defined by the appended claims rather than the foregoing description; therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A highway slope protection structure, comprising a base layer (1), a slope body (2), and a drainage ditch (3), characterized in that, The base layer (1) includes a reinforced soil layer (11), a gravel layer (12), a concrete layer (13), and a cement layer (14) arranged sequentially from bottom to top. The slope (2) is set on the upper side of the base layer (1). The drainage ditch (3) is set on the bottom side of the slope (2). Several water collection pipes (4) are provided near the bottom of the slope sidewall of the drainage ditch (3). The surface of the slope (2) is provided with a concrete grid (21). The concrete grid (21) includes several grid grooves (211). Several arrayed through holes are provided at the bottom of the grid grooves (211). The through holes are connected to the water collection pipes (4) through the drain pipes (5). A greening layer (6) is provided in the grid grooves (211).

2. The highway slope protection structure according to claim 1, characterized in that, The greening layer (6) includes, from bottom to top, a filter plate (61), an inner layer of soil layer (62), a slow-release fertilizer layer (63), and a surface layer of soil layer (62).

3. The highway slope protection structure according to claim 1, characterized in that, The top of the drainage channel (3) is provided with a cover plate (31) with an array of long holes, and the cover plate (31) is a modular prefabricated plate.

4. A highway slope protection structure according to claim 3, characterized in that, The cover plate (31) has a galvanized steel filter grid in the elongated hole.

5. A highway slope protection structure according to claim 1, characterized in that, The drain pipe (5) is equipped with a spiral capillary drainage band (7), which extends into the soil layer (62) above and into the bottom of the water collection pipe (4) below.

6. A highway slope protection structure according to claim 2, characterized in that, Grass seeds are present in the surface layer of the soil layer (62).

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