Bioretention facility for improving roadbed slope stability

Abstract

The utility model relates to the technical field of municipal roads, in particular to a bioretention facility for improving roadbed slope stability, which comprises a roadbed structure, a groove is dug on the surface of the roadbed structure, a broken stone hardcore is laid on the inner bottom wall of the groove, a quartz sand water storage layer is laid on the upper side of the broken stone hardcore, and a planting soil layer is laid on the upper side of the quartz sand water storage layer. A supporting mechanism is arranged in the groove and comprises a fixing plate, a steel structure supporting column, a material injection hole, a feeding opening, a first supporting plate and a second supporting plate. The steel structure supporting columns are inserted into the roadbed side slope, the multiple sets of supporting plates are used for connecting the multiple sets of steel structure supporting columns together, concrete permeates into the roadbed side slope through the material injection holes, a concrete base layer is formed in the roadbed side slope, the roadbed side slope is reinforced, and the stability of the roadbed side slope is improved; the use safety of the pavement structure is improved, and meanwhile, the existing facility slope can be conveniently reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal roads, in particular to a biological retention facility for improving the stability of roadbed slopes. Background Art

[0002] Bioretention facilities are divided into simple bioretention facilities and complex bioretention facilities. Depending on the application location, they are also called rain gardens, bioretention zones, elevated flower beds, ecological tree pools, etc. The structure of complex bioretention facilities usually includes a water storage layer, a covering layer, a planting soil layer, a permeable layer and a drainage layer. They utilize the natural environment to reduce rainwater runoff and purify rainwater quality.

[0003] Among them, the announcement number CN113818534B discloses a bioretention facility for sponge city roads, including: a sunken green belt, which is set between the motor vehicle lane and the auxiliary road, and its elevation is lower than the elevation of the motor vehicle lane and the auxiliary road. From bottom to top, it is the original soil layer, the first gravel layer, the permeable geotextile, the quartz sand aquifer, the planting soil layer and the bark cover layer; underground rainwater pipelines, buried under the sunken green belt, the auxiliary road and the sidewalk, and the underground rainwater pipelines under the sunken green belt are located in the first gravel layer; rainwater wells, several rainwater wells are set in the sunken green belt, and each rainwater well is connected to the underground rainwater pipeline. The rainwater channel that is connected up and down and convenient for rainwater circulation is formed by the rainwater wells and underground rainwater pipelines. The layered arrangement of the sunken green belt can avoid problems such as rainwater scouring and sinking. The sunken greening transformation of urban roads can achieve the retention, infiltration, purification and storage of rainwater, and especially strengthen the prevention of flood disasters in rare heavy rainfall weather.

[0004] The sunken green belt in this facility is set between the motor vehicle lane and the guidance lane. During use, all rainwater is collected into the interior of the bioretention facility. Long-term erosion by rainwater will cause the roadbed slope to loosen, resulting in reduced roadbed supporting capacity, and further damage to the pavement structure.

[0005] Therefore, it is necessary to invent a bioretention facility that improves the stability of roadbed slopes to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a bioretention facility for improving the stability of roadbed slopes, so as to solve the problem in the technology that long-term erosion by rainwater will cause the roadbed slopes to loosen, resulting in reduced roadbed supporting force and further damage to the road surface structure.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a biological retention facility for improving the stability of roadbed slopes, comprising a roadbed structure, a groove is excavated on the surface of the roadbed structure, a crushed stone cushion layer is paved on the inner bottom wall of the groove, a quartz sand aquifer is paved on the upper side of the crushed stone cushion layer, a planting soil layer is paved on the upper side of the quartz sand aquifer, a pavement layer is paved on the upper surface of the roadbed structure at the left and right sides of the groove, a support mechanism is arranged inside the groove, the support mechanism comprises a fixed plate, a steel structure support column, an injection hole, a feed port, a first support plate and a second support plate, and the steel structure support column is inserted into the interior of the roadbed slope.

[0008] By adopting the above technical solution, the steel structure support column is inserted into the inside of the roadbed slope, and then the concrete is poured into the inside of the feed port. Then the concrete penetrates into the inside of the roadbed slope through the injection hole, forming a concrete base layer inside the roadbed slope, thereby improving the structural strength of the roadbed slope. At the same time, the first support plate further supports the roadbed slope, and the second support plate improves the stability inside the groove.

[0009] Optionally, the upper end of the steel structure support column is fixedly connected to the fixed plate, the feed port is opened inside the steel structure support column and the fixed plate, the injection hole is opened on the side wall of the steel structure support column, and the injection hole is connected to the feed port.

[0010] By adopting the above technical solution, concrete penetrates into the interior of the roadbed slope through the injection holes.

[0011] Optionally, three groups of clamping grooves are provided on the upper surface of the fixing plate, threaded holes are provided on the inner bottom walls of the clamping grooves, and fixing screws are connected to the internal threads of the threaded holes.

[0012] Optionally, the front and rear ends of the first support plate are respectively clamped in the clamping grooves in the upper surfaces of the front and rear two groups of fixing plates, a first groove is provided in the middle of the first support plate, and the first support plate is provided on the upper surface of the planting soil layer.

[0013] Optionally, the slope of the roadbed structure is located on the side of the pavement layer and multiple groups of road curbs are fixedly connected. The surface of the road curb is provided with a drainage groove, and the drainage groove is located on the side of the first groove.

[0014] By adopting the above technical solution, a drainage ditch is opened at the bottom of the first groove in the planting soil layer to guide water flow into the interior of the green belt.

[0015] Optionally, a plurality of support frames are fixedly connected to the lower surface of the first support plate, and the bottom end of the road curb is tightly against the upper surface of the support frame.

[0016] By adopting the above technical solution, through holes are opened at both ends of the first support plate, and fixing screws are passed through the through holes and threadedly connected with the threaded holes to fix the first support plate and the fixing plate.

[0017] Optionally, the left and right ends of the second support plate are respectively clamped in the clamping grooves in the upper surfaces of the left and right groups of fixed plates, a second groove is provided in the middle of the second support plate, and the second support plate is located on the lower surface of the planting soil layer.

[0018] By adopting the above technical solution, through holes are also opened at both ends of the second support plate, and fixing screws are passed through the through holes and threadedly connected with the threaded holes to fix the second support plate and the fixing plate.

[0019] Optionally, a micro concrete column is fixedly connected to the lower side of the second support plate, and the micro concrete column is inserted into the quartz sand aquifer and the gravel cushion layer.

[0020] By adopting the above technical solution, the micro concrete columns support the bottom of the second support plate.

[0021] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0022] 1. The utility model inserts the steel structure support column into the inside of the roadbed slope, then injects concrete into the inside of the feed port, and the concrete penetrates into the inside of the roadbed slope through the injection hole, forming a concrete base inside the roadbed slope to reinforce the roadbed slope. At the same time, the first support plate and the second support plate connect multiple groups of steel structure support columns together, further improving the stability of the roadbed slope, thereby improving the supporting force of the roadbed structure, increasing the safety of the pavement structure, and solving the problem that the roadbed slope will become loose due to long-term erosion by rainwater, resulting in a decrease in the supporting force of the roadbed, and then causing damage to the pavement structure.

[0023] 2. The utility model utilizes steel structure support columns to be directly driven into the interior of the roadbed slope, thereby facilitating secondary reinforcement of the roadbed slope in the existing bioretention facility, reducing the amount of construction work and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the biological retention facility of the utility model;

[0026] Figure 3 This is a schematic diagram of the support mechanism structure of the utility model;

[0027] Figure 4 This is a schematic diagram of the support plate structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the steel structure support column structure of the utility model.

[0029] Description of reference numerals:

[0030] 1. Roadbed structure; 11. Road surface layer; 12. Gravel cushion layer; 13. Quartz sand water storage layer; 14. Planting soil layer; 15. Road curb; 16. Drainage ditch; 2. Fixing plate; 21. Snap-in groove; 22. Threaded hole; 23. Fixing screw; 24. Steel structure support column; 25. Injection hole; 26. Feed inlet; 3. First support plate; 31. First groove; 32. Support frame; 4. Second support plate; 41. Second groove; 42. Micro concrete column. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] The utility model provides Figures 1 to 3 A bioretention facility for improving the stability of roadbed slopes is shown, comprising a roadbed structure 1, a groove is excavated on the surface of the roadbed structure 1, a crushed stone cushion layer 12 is paved on the inner bottom wall of the groove, a quartz sand aquifer 13 is paved on the upper side of the crushed stone cushion layer 12, a planting soil layer 14 is paved on the upper side of the quartz sand aquifer 13, a pavement layer 11 is paved on the upper surface of the roadbed structure 1 at the left and right sides of the groove, a supporting mechanism is arranged inside the groove, the supporting mechanism comprises a fixed plate 2, a steel structure support column 24, an injection hole 25, a feed port 26, a first support plate 3 and a second support plate 4, the steel structure support column 24 is inserted into the interior of the roadbed slope, the upper end of the steel structure support column 24 is fixedly connected to the fixed plate 2, the feed port 26 is opened inside the steel structure support column 24 and the fixed plate 2, the injection hole 25 is opened on the side wall of the steel structure support column 24, and the injection hole 25 is communicated with the feed port 26.

[0033] During use, the steel structure support column 24 in the support mechanism is inserted into the interior of the roadbed slope, and then the first support plate 3 and the second support plate 4 are used to connect multiple groups of steel structure support columns 24 into a whole, thereby reinforcing the roadbed slope, and then concrete is poured into the inside of the feed port 26, and pressure is used to discharge the concrete from the injection hole 25 to the outside, so that the concrete penetrates into the interior of the roadbed slope, forming a concrete base layer inside the roadbed slope, thereby further improving the structural strength of the roadbed slope.

[0034] At the same time, in the process of reinforcing the roadbed slope in the existing biological retention facility, a laying groove is excavated on the surface of the planting soil layer 14. After the steel structure support column 24 is inserted into the roadbed slope, the first support plate 3 and the second support plate 4 are laid in the excavated laying groove, and the first support plate 3 and the second support plate 4 are connected to multiple groups of steel structure support columns 24. The multiple groups of steel structure support columns 24 are connected together, and concrete is poured to reinforce the roadbed slope in the existing biological retention facility.

[0035] See also Figure 4 and Figure 5 The upper surface of the fixing plate 2 is provided with three groups of clamping grooves 21, the inner bottom wall of the clamping groove 21 is provided with a threaded hole 22, and the internal thread of the threaded hole 22 is connected with a fixing screw 23, and the front and rear ends of the first support plate 3 are respectively clamped in the clamping grooves 21 on the upper surfaces of the front and rear two groups of fixing plates 2, and the middle part of the first support plate 3 is provided with a first groove 31, and the first support plate 3 is arranged on the upper surface of the planting soil layer 14. The slope of the roadbed structure 1 is located on the side of the pavement layer 11 and fixedly connected with multiple groups of road curb stones 15. The surface of the road curb stone 15 is provided with a drainage groove 16, and the drainage groove 16 is located at the first groove 31. On the side, the lower surface of the first support plate 3 is fixedly connected with multiple groups of support frames 32, the lower surface of the first support plate 3 is fixedly connected with multiple groups of support frames 32, the bottom end of the road curb 15 is tightly against the upper surface of the support frame 32, the left and right ends of the second support plate 4 are respectively clamped in the clamping grooves 21 in the upper surfaces of the left and right groups of fixed plates 2, a second groove 41 is provided in the middle of the second support plate 4, the second support plate 4 is located on the lower surface of the planting soil layer 14, and a micro concrete column 42 is fixedly connected to the lower side of the second support plate 4, and the micro concrete column 42 is inserted into the inside of the quartz sand aquifer 13 and the gravel cushion layer 12.

[0036] Specifically, during the connection process, the two ends of the first support plate 3 and the second support plate 4 are clamped in the clamping groove 21, the fixing screws 23 are passed through the through holes and threadedly connected with the threaded holes 22, the first support plate 3 and the second support plate 4 are fixed to the fixed plate 2, and the multiple groups of steel structure support columns 24 are connected as a whole.

[0037] In addition, after the concrete pouring is completed, the road curb 15 is fixed to the side of the road surface layer 11, and its lower end is mounted on the upper side of the support frame 32 to prevent the road curb 15 from loosening.

[0038] Working principle of the utility model: in order to improve the stability of the roadbed slope and facilitate the reinforcement of the existing facility slope, the steel structure support column 24 is inserted into the inside of the roadbed slope, and then the first support plate 3 and the second support plate 4 connect multiple groups of steel structure support columns 24 together, and then concrete is injected into the inside of the feed port 26. The concrete penetrates into the inside of the roadbed slope through the injection hole 25, and a concrete base is formed inside the roadbed slope. The roadbed slope is reinforced, the stability of the roadbed slope is improved, and the supporting force of the roadbed structure 1 is effectively improved, and the safety of the pavement structure is increased.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only preferred examples of the utility model, and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A bioretention facility for improving the stability of a roadbed slope, comprising a roadbed structure (1), characterized in that: A groove is excavated on the surface of the roadbed structure (1), the inner bottom wall of the groove is paved with a crushed stone cushion layer (12), a quartz sand water storage layer (13) is paved on the upper side of the crushed stone cushion layer (12), and a planting soil layer (14) is paved on the upper side of the quartz sand water storage layer (13). A pavement layer (11) is paved on the upper surface of the roadbed structure (1) at positions on the left and right sides of the groove. A support mechanism is arranged inside the groove, the support mechanism comprising a fixing plate (2), a steel structure support column (24), a material injection hole (25), a material feed port (26), a first support plate (3) and a second support plate (4), and the steel structure support column (24) is inserted into the interior of the roadbed slope.

2. A bioretention facility for improving roadbed slope stability according to claim 1, characterized in that: The upper end of the steel structure support column (24) is fixedly connected to the fixed plate (2), the feed port (26) is provided inside the steel structure support column (24) and the fixed plate (2), the injection hole (25) is provided on the side wall of the steel structure support column (24), and the injection hole (25) is connected to the feed port (26).

3. The bioretention facility for improving the stability of roadbed slope according to claim 1, characterized in that: The upper surface of the fixing plate (2) is provided with three groups of clamping grooves (21), the inner bottom wall of the clamping groove (21) is provided with a threaded hole (22), and the internal thread of the threaded hole (22) is connected with a fixing screw (23).

4. A bioretention facility for improving roadbed slope stability according to claim 3, characterized in that: The front and rear ends of the first support plate (3) are respectively clamped in clamping grooves (21) in the upper surfaces of the front and rear two sets of fixing plates (2); a first groove (31) is provided in the middle of the first support plate (3); and the first support plate (3) is arranged on the upper surface of the planting soil layer (14).

5. A bioretention facility for improving roadbed slope stability according to claim 4, characterized in that: The side slope of the roadbed structure (1) is located on the side of the pavement layer (11) and is fixedly connected to a plurality of groups of road curbs (15). The surface of the road curb (15) is provided with a drainage groove (16), and the drainage groove (16) is located on the side of the first groove (31).

6. A bioretention facility for improving roadbed slope stability according to claim 5, characterized in that: A plurality of groups of support frames (32) are fixedly connected to the lower surface of the first support plate (3), and the bottom end of the road curb (15) is tightly abutted against the upper surface of the support frame (32).

7. The bioretention facility for improving roadbed slope stability according to claim 1, characterized in that: The left and right ends of the second support plate (4) are respectively clamped in the clamping grooves (21) in the upper surfaces of the left and right sets of fixing plates (2); a second groove (41) is provided in the middle of the second support plate (4); and the second support plate (4) is located on the lower surface of the planting soil layer (14).

8. The bioretention facility for improving the stability of roadbed slope according to claim 7, characterized in that: A micro concrete column (42) is fixedly connected to the lower side of the second support plate (4), and the micro concrete column (42) is inserted into the interior of the quartz sand aquifer (13) and the crushed stone cushion layer (12).

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