Greening soil piling construction structure on two sides of road

Abstract

The utility model relates to the technical field of highway construction, in particular to a construction structure for greening and soil piling on two sides of a highway. Comprising a roadbed and side slopes arranged close to the two sides of the roadbed, clay edge covering layers are arranged on the side slopes, anti-seepage geomembranes are arranged on the clay edge covering layers, green belts are arranged on the anti-seepage geomembranes, side ditches are formed in the two sides of the roadbed, and road surface water is discharged outwards through the side ditches. Then the clay edge covering layer and the anti-seepage geomembrane are combined for use to protect the roadbed and the green belt, and torrent grooves are obliquely formed in the ends of the side ditches. The utility model provides the greening and soil piling construction structure on the two sides of the road, which has the advantages of more stable and firmer road bureau structure, long service life, low cost, convenience in construction and the like.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, and in particular to a construction structure for greening soil piles on both sides of a highway. Background Technology

[0002] The current simple greening along the roadsides is no longer sufficient to meet the needs of integrated transportation and tourism. It is necessary to create a scenic avenue that combines ecology, landscape, and economy, taking into account local historical and cultural characteristics. However, simply piling soil for greening along the roadbed can lead to water seepage into the roadbed, reducing its bearing capacity and thus its strength. Furthermore, due to the water absorption and expansion and water loss shrinkage characteristics of soil, uneven settlement and deformation of the roadbed can occur. This settlement and deformation can cause road surface cracking and potholes, seriously affecting driving safety and stability, and resulting in a short road lifespan.

[0003] Chinese patent CN211849499U discloses a highway greening slope, comprising a slope body, a reinforcing layer on the outer surface of the slope body, a soil layer on the outer surface of the reinforcing layer, and a concrete frame fixedly connected to the outer surface of the soil layer. The concrete frame includes drainage channels, and a drainage trough is provided on the left side of each drainage channel. The number of drainage channels is several. This utility model solves the problem of poor stability in existing highway greening slopes by using a combination of a slope body, concrete columns, a reinforcing layer, a first water collection trough, a first stacked block, a first net cover, a concrete frame, a soil layer, a second net cover, a retaining block, a second water collection trough, a second stacked block, drainage channels, an isolation frame, a planting layer, drainage troughs, green plants, a first placement trough, a second placement trough, a base material layer, a non-woven fabric layer, and a hemp rope woven mesh layer. This highway greening slope has the advantage of good stability and is worth promoting.

[0004] However, water seepage can still occur between the concrete frame and the soil layer, and between the soil layer and the slope, leading to water seepage inside the roadbed, making its structure unstable and prone to disasters such as mudslides and landslides. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by providing a construction structure for greening and soil piling on both sides of highways. This structure uses an impermeable geomembrane in conjunction with a clay edge layer to isolate the roadbed from surface water, thus solving the problem of landslides that easily occur after the roadbed is submerged in water, as is the case with existing technologies.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A construction structure for greening soil piles on both sides of a highway includes: a roadbed and slopes set on both sides of the roadbed. A clay edging layer is set on the slopes, an impermeable geomembrane is set on the clay edging layer, and a green belt is set on the impermeable geomembrane. Side ditches are set on both sides of the roadbed to drain surface water. The roadbed and the green belt are protected by the combination of the clay edging layer and the impermeable geomembrane.

[0008] Preferably, the end of the side ditch is provided with a rapid flow channel, through which surface water is discharged outward.

[0009] Preferably, a drop well is provided at the end of the rapid flow channel.

[0010] Preferably, the bottom of the rapid flow channel is formed with an anti-slip platform.

[0011] Preferably, the drop well is formed by laying a crushed stone cushion layer on the slope and pouring cement concrete on top of the crushed stone cushion layer.

[0012] Preferably, the upper part of the side ditch is provided with a groove.

[0013] Preferably, a cover plate is provided in the groove.

[0014] Preferably, the cover plate is inserted into the groove to form a slot connection.

[0015] Preferably, the cover plate is formed by casting steel bars and concrete.

[0016] Preferably, the width at both ends of the cover plate is greater than the width at the middle, that is, the middle is narrow and the two ends are wide.

[0017] Preferably, the side of the clay edging layer that contacts the slope is stepped.

[0018] The beneficial effects of this utility model are as follows:

[0019] (1) By setting up a side ditch between the green belt and the roadbed, the two can be completely separated, which can effectively prevent the water stored in the green belt from eroding and hydrolyzing the roadbed. Combined with the use of impermeable geomembrane, the strength of the roadbed is increased, thereby improving the quality of the roadbed and extending the service life of the roadbed. Moreover, the price of reverse filter geotextile and clay is relatively low, which can reduce construction costs.

[0020] (2) This utility model solves the problem of road surface water by setting up covered side ditches at the junction of green belt and roadbed to collect road surface water and green area surface water, and by setting up drainage culverts, rapid flow channels and other facilities in combination with topography and longitudinal section elevation, so that road surface water can be smoothly discharged into nearby rivers, and provides multiple options to facilitate construction.

[0021] (3) This utility model utilizes most of the construction waste soil as raw material for the green belts on both sides of the road, thus realizing the reuse of resources. This not only reduces the cost of waste soil treatment, but also avoids environmental pollution problems caused by improper waste soil treatment.

[0022] (4) This utility model drains rainwater from the road surface and slope through the side ditch, which plays a role in maintaining the stability of the roadbed. The existence of the side ditch makes the connection between the roadbed and the green belt more perfect, greatly increases the landscape effect of the road, and makes it look more beautiful, thus enriching the terrain.

[0023] (5) The present invention has an anti-slip platform formed at the bottom of the chute, which makes the crushed stone cushion layer and cement concrete tightly bonded together. This not only increases the bearing capacity of the chute to adapt to water flow of different sizes, but also effectively prevents soil erosion, further protects the chute, makes it more stable and firm, and extends the service life of the chute. In addition, the clay edging layer is stepped on the side that contacts the slope, which makes the clay edging layer tightly bonded to the roadbed. This not only increases the bearing capacity of the roadbed, but also effectively prevents soil erosion, further protects the roadbed, and thus extends the service life of the highway.

[0024] In summary, this utility model has the advantages of more stable and robust road structure, longer service life, lower cost and easier construction. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 for Figure 1 Enlarged view of point A;

[0027] Figure 3 This is the front view of the present invention;

[0028] Figure 4 This is a cross-sectional view of the present invention;

[0029] Figure 5 This is a cross-sectional view of the ditch of this utility model;

[0030] Figure 6 This is a top view of the cover plate of this utility model;

[0031] Figure 7 This is a diagram showing the internal structure of the cover plate of this utility model.

[0032] Attached diagram labels: 1-Roadbed; 11-Slope; 12-Clay edging layer; 13-Imperible geomembrane; 2-Green belt; 3-Side ditch; 31-Rapid flow channel; 32-Drip well; 321-Crushed stone cushion layer; 322-Cement concrete; 33-Anti-slip platform; 34-Groove; 35-Cover plate; 351-Reinforcing steel; 352-Concrete. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component 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 of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Example

[0036] like Figure 1-7As shown, this embodiment provides a construction structure for greening soil piles on both sides of a highway, including: a roadbed 1 and slopes 11 set on both sides of the roadbed 1. A clay edging layer 12 is provided on the slopes 11, and an impermeable geomembrane 13 is provided on the clay edging layer 12. A green belt 2 is set on the impermeable geomembrane 13. Side ditches 3 are provided on both sides of the roadbed 1 to drain surface water. The combination of the clay edging layer 12 and the impermeable geomembrane 13 protects the roadbed 1 and the green belt 2. The geomembrane 13 cuts off the channel through which water from the green belt 2 seeps into the slope 11 via the roadbed 1, affecting the strength of the roadbed 1. At the same time, a clay edging layer 12 is set on the slope 11 for sealing, completely isolating the water from the green belt 2 from the roadbed 1. This prevents the water from the green belt 2 from eroding and hydrolyzing the roadbed 1, effectively preventing uneven settlement and deformation of the roadbed 1, increasing the strength of the roadbed 1, thereby improving the quality of the roadbed 1 and extending its service life. Moreover, both the impermeable geomembrane 13 and the clay are relatively inexpensive, reducing construction costs.

[0037] In this case, most of the raw materials for the green belt 2 can be the waste soil left over after the construction of the roadbed 1, realizing the reuse of resources. This not only reduces the cost of waste soil treatment, but also avoids environmental pollution caused by improper waste soil treatment. Under normal circumstances, the requirements for the foundation of the roadbed 1 are lower than those for other seepage prevention materials. When the roadbed 1 undergoes slight deformation, the clay will heal itself under its own weight. It is suitable for places with abundant local soil and deep foundation coverage. It can be sourced nearby, and the project cost is relatively low. The construction process of clay is simple, the investment in construction equipment is small and all of them are conventional equipment, and the amount of excavation is relatively reduced.

[0038] Meanwhile, the end of the side ditch 3 is inclinedly provided with a rapid flow channel 31, through which surface water is discharged outward. The rapid flow channel 31 refers to an artificial ditch with a slope greater than the critical slope. Its function is to guide the water flow when the distance is short and the water level difference is large. The design of the rapid flow channel 31 should pay attention to the connection at the inlet to ensure that the water flows in smoothly. The rapid flow channel 31 is usually connected to the side ditch 3 of the road surface or directly serves as the outlet for the road surface water collection. It can prevent slope 11 collapse, landslides and debris flows caused by water immersion on the slope 11. In highway engineering, the rapid flow channel 31 is often built on both sides of the slope to drain water and slow down the water flow, which plays a great protective role for the roadbed 1.

[0039] In this embodiment, a drop well 32 is provided at the end of the rapid flow channel 31. The drop well 32 is a well in which the water flow in the well drops. It is generally set at a place with a large height difference from the roadbed 1 to connect to the side ditch 3. Compared with ordinary manholes, the drop well 32 needs to eliminate the energy of the drop. The amount of this energy depends on the flow rate of the water and the height of the drop. The construction of the drop well 32 has different designs, which are determined by the energy dissipation measures. Its bottom construction is generally more robust than that of ordinary manholes. The drop method can generally adopt vertical pipes or rectangular vertical channels to accelerate the flow speed of water, ensure smooth drainage, and have a large flow rate, thereby quickly draining the water from the road surface.

[0040] In this embodiment, the side ditch 3 refers to a longitudinal artificial ditch set outside the embankment 1, used to collect surface water from the road surface, drain slope water intercepted by the roadbed 1 on the upper slope 11 of the road, quickly collect it and introduce it into the smooth flow channel 31 and drop well 32, and discharge it under the road through bridges and culverts. The side ditch 3 drains the precipitation from the road surface and slope, which plays a role in maintaining the stability of the roadbed 1. Moreover, the existence of the side ditch 3 makes the connection between the roadbed 1 and the green belt 2 more perfect, greatly enhances the landscape effect of the road, makes it look more beautiful, and enriches the terrain.

[0041] In this embodiment, the drop well 32 is formed by pouring a crushed stone cushion layer 321 laid on the slope 11 and a mud concrete 322 placed on top of the crushed stone cushion layer 321. The crushed stone cushion layer 321 can improve the bearing capacity of the shallow layer of the roadbed 1, accelerate the consolidation and settlement of the soil layer under the roadbed 1, and accelerate the drainage consolidation of the roadbed 1. The mud concrete 322 has the characteristics of high compressive strength, good durability, and wide strength grade range. The combined use of the roadbed 1 and the mud concrete 322 improves the bearing capacity and stability of the roadbed 1, prevents the road from settling, and thus ensures the stability of the entire road.

[0042] In this embodiment, the bottom of the rapid flow channel 31 is formed with an anti-slip platform 33, which makes the crushed stone cushion layer 321 and the mud concrete 322 tightly bonded. This not only increases the bearing capacity of the rapid flow channel 31 to adapt to water flow of different sizes, but also effectively prevents soil erosion, further protects the rapid flow channel 31, makes it more stable and firm, and extends the service life of the rapid flow channel 31.

[0043] In this embodiment, a groove 34 is provided on the upper part of the side ditch 3, and a cover plate 35 is provided in the groove 34. The cover plate 35 is inserted into the groove 34 to form a slot connection. The shape of the groove 34 is adapted to the shape of the cover plate 35. Preferably, the upper part of the side ditch 3 is concave, so it is necessary to ensure that the upper surface of the cover plate 35 is flush with the upper surface of the side ditch 3 so as not to affect the safe use of the road. The slot connection can provide a stable and safe connection, which can ensure that there will be no loosening or displacement under slight vibration or other vibration environment. Moreover, the slot connection has quick and convenient disassembly and installation functions, which can reduce the time and cost required for maintenance and replacement.

[0044] In this embodiment, a side ditch 3 with a cover plate 35 is set at the junction of the green belt 2 and the roadbed 1 to collect road surface water and surface water of the green belt 2. In combination with the terrain and longitudinal section elevation, drainage culverts, rapid flow channels 31 and other facilities are set up so that the road surface water can be smoothly discharged into the nearby river, which solves the road surface water problem and provides multiple options to facilitate construction.

[0045] In this embodiment, the cover plate 35 is formed by casting steel bars 351 and concrete 352. This complementary combination of steel bars 351 and concrete 352 strengthens the overall structure of the building project. They act like a protective umbrella in the engineering structure, bearing the internal and external pressures and tensions caused by natural and human factors. Moreover, the concrete 352 is a poor conductor of heat, which can protect the steel bars 351 from being immediately affected by high temperatures, increase the interaction time with the steel bars 351, and extend the service life of the cover plate 35.

[0046] Of course, the width at both ends of the cover plate 35 is greater than the width in the middle, that is, it is narrow in the middle and wide at both ends, leaving a certain gap with the edge of the side ditch 3. This ensures that water on the road surface can enter the side ditch 3 through the gap, and also allows the cover plate 35 to be installed quickly. Installation and disassembly are also convenient, improving installation efficiency.

[0047] In addition, the side of the clay edging layer 12 that contacts the slope 11 is stepped, which makes the clay edging layer tightly bonded to the roadbed 1, which not only increases the bearing capacity of the roadbed 1, but also effectively prevents soil erosion, further protects the roadbed 1, and thus extends the service life of the highway.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction structure for soil piling for greening along both sides of a highway, comprising: The roadbed and the slopes set on both sides of the roadbed are characterized in that a clay edging layer is provided on the slopes, an impermeable geomembrane is provided on the clay edging layer, a green belt is provided on the impermeable geomembrane, and side ditches are provided on both sides of the roadbed to drain surface water. The roadbed and the green belt are protected by the combination of the clay edging layer and the impermeable geomembrane.

2. The construction structure for greening soil piles on both sides of a highway according to claim 1, characterized in that, The end of the side ditch is provided with a rapid flow channel at an angle.

3. The construction structure for soil piling for greening on both sides of a highway according to claim 2, characterized in that, A drop well is provided at the end of the rapid flow channel.

4. The construction structure for greening soil piles on both sides of a highway according to claim 2, characterized in that, The bottom of the rapid flow channel is formed with an anti-slip platform.

5. The construction structure for greening soil piles on both sides of a highway according to claim 3, characterized in that, The drop well is formed by laying a crushed stone cushion layer on the slope and pouring cement concrete on top of the crushed stone cushion layer.

6. The construction structure for greening soil piles on both sides of a highway according to claim 1, characterized in that, The upper part of the side ditch is provided with a groove.

7. The construction structure for soil piling for greening on both sides of a highway according to claim 6, characterized in that, A cover plate is provided in the groove, and the cover plate is inserted into the groove to form a slot connection.

8. The construction structure for greening soil piles on both sides of a highway according to claim 7, characterized in that, The cover plate is formed by casting steel bars and concrete.

9. The construction structure for soil piling for greening on both sides of a highway according to claim 7, characterized in that, The width at both ends of the cover plate is greater than the width at its center.

10. The construction structure for greening soil piles on both sides of a highway according to claim 1, characterized in that, The side of the clay edging layer that contacts the slope is stepped.

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