Ecological retaining structure for urban road

Abstract

The utility model discloses an ecological retaining structure for urban roads, which comprises a wall body, earth-rock mixture, ecological building blocks, anchor rods, frame columns, a concrete coping, green plants and drain holes, an anti-slip front toe is arranged at the toe of the wall body, the ecological building blocks are arranged on the inner side of the anti-slip front toe, the ecological building blocks are built on the wall top from the toe, and the anchor rods are arranged on the wall top. The space between the wall body and the ecological building blocks is filled with the soil-rock mixture in a matched mode. The anchor rods are pre-buried in the wall body and penetrate through the earth-rock mixture to be connected with the ecological building blocks, the frame columns are arranged in the ecological building blocks, the concrete coping is arranged at the top of the wall body, greening ecological planting holes are formed between the ecological building blocks, and greening plants are planted in the greening ecological planting holes in a matched mode. The ecological building blocks are combined with the rubble concrete wall body, construction is easy, practicability is high, the ecological building blocks can be used for both new projects and reconstruction projects, the selection range of the ecological building blocks is large, and universality is high.

Description

Technical Field

[0001] The utility model relates to the design and application field of an urban road retaining structure, and more specifically to an ecological retaining structure for urban roads. Background Art

[0002] With the acceleration of urbanization and the improvement of environmental protection awareness, people pay more and more attention to the ecological landscape of slope support and protection. Ecological slope is not only a basic measure for urban road support and protection, but also an important part of the landscape along urban roads, aiming to relax pedestrians and relieve stress.

[0003] The retaining structure of traditional road slopes is generally built with pure masonry materials, which has the following shortcomings when used in urban roads:

[0004] 1) The retaining structure is mostly built with masonry materials, which is relatively rigid and has poor landscape quality;

[0005] 2) The drainage holes of the retaining structure are exposed, which is easy to harbor dirt and grime for a long time, which looks bad and easily causes poor drainage;

[0006] 3) The drainage on the back of the retaining structure wall cannot be used and needs to be discharged through the drainage ditch at the bottom of the slope. Stains are likely to form over a long period of time, affecting the appearance of the wall.

[0007] Therefore, based on the above-mentioned shortcomings, it is necessary to design an ecological retaining structure for urban roads that can enhance the landscape effect, increase the ecological value, be simple to construct and highly practical. Utility Model Content

[0008] The utility model discloses an ecological retaining structure for urban roads, and its main purpose is to overcome the above-mentioned deficiencies and shortcomings of the prior art: 1. Traditional retaining structures are mostly built with masonry materials, which have poor landscape and are relatively hard and oppressive; 2. The drainage holes of traditional retaining structures are exposed, which are prone to accumulating dirt and filth for a long time, have a poor appearance and are prone to poor drainage; 3. The back drainage of the traditional retaining structure cannot be utilized and needs to be discharged through the drainage ditch at the bottom of the slope, which is prone to forming stains for a long time, affecting the appearance of the wall.

[0009] The technical solution adopted by the utility model is as follows:

[0010] An ecological retaining structure for urban roads, comprising a wall 2, a soil-rock mixture, an ecological block, an anchor rod 22, a frame column, a concrete top, green plants and a drainage hole, wherein the wall toe is provided with an anti-skid front toe, the ecological block is arranged on the inner side of the anti-skid front toe, the ecological block is stacked from the wall toe to the wall top, the soil-rock mixture is filled in combination between the wall and the ecological block; the anchor rod is pre-buried in the wall and passes through the soil-rock mixture to be connected with the ecological block, the frame column is arranged in the ecological block, the concrete top is arranged on the top of the wall, green ecological planting holes are formed between the ecological blocks, the green plants are cooperatively planted in the green ecological planting holes, and the drainage hole is penetrated through the wall.

[0011] Furthermore, the ecological building block is preset with a self-locking hole, a steel bar is arranged in the self-locking hole, and the anchor rod is welded to the steel bar in the self-locking hole.

[0012] Furthermore, the drainage hole has a water inlet at one end of the wall and a drainage outlet at one end of the soil-rock mixture, and the water inlet is higher than the drainage outlet.

[0013] Furthermore, the water inlet and the drain outlet are respectively wrapped with geotextiles.

[0014] Furthermore, the anchor rod pre-buried depth is not less than 50cm, the steel bar end of the anchor rod is L-shaped, and the bending length is 200mm.

[0015] Furthermore, the ecological building blocks are provided with a frame column every 20m, and the main reinforcement of the frame column penetrates into the concrete top and the concrete foundation by no less than 10cm.

[0016] It can be seen from the above description of the utility model that, compared with the prior art, the advantages of the utility model are:

[0017] 1. The utility model is suitable for the ecological retaining structure of urban road slope protection. It combines ecological blocks with slate concrete walls. It is easy to construct and has strong practicality. It can be used for both new projects and renovation projects. The ecological blocks have a wide range of choices and are widely used.

[0018] 2. The ecological main building block of the utility model is provided with greening ecological planting holes for planting green plants, thereby improving the landscape effect, increasing the ecological value, and enhancing the comfort of pedestrians.

[0019] 3. Compared with the traditional retaining wall, the utility model fills the soil-stone mixture between the ecological blocks and the rubble concrete, and leads the drainage from the back of the wall to the soil-stone mixture through the drainage holes. At the same time, it is used to water the green plants in the ecological blocks, which solves the problem of stains formed by the exposed drainage holes, resulting in poor appearance and poor drainage, and improves the aesthetics.

[0020] 4. Compared with the traditional retaining wall, the thickness of the planting soil of green plants in the utility model is increased, which solves the problem of weak nutritional base of vertical greening plants.

[0021] 5. Compared with the traditional retaining wall, the thickness of the newly built gravity retaining wall can be further reduced; and the stability of the existing gravity retaining wall that needs to be renovated can be further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Among them, there are wall 1, anti-slip front toe 11, soil-stone mixture 2, drainage ditch 21, ecological blocks 3, anchor rods 4, concrete top 5, green plants 6, and drainage holes 7. DETAILED DESCRIPTION

[0024] The specific implementation of the present invention will be further described and illustrated below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, an ecological retaining structure for urban roads includes a wall 1, a soil-rock mixture 2, an ecological block 3, an anchor rod 4, a frame column (not shown in the figure due to viewing angle), a concrete top 5, green plants 6 and a drainage hole 7. The wall 1 is provided with an anti-skid front toe 11 at the toe of the wall, and the ecological block 3 is arranged inside the anti-skid front toe 11. The ecological block 3 is stacked from the wall toe to the top of the wall, and the soil-rock mixture 2 is filled between the wall 1 and the ecological block 3; the anchor rod 4 is pre-buried in the wall 1 and passes through the soil-rock mixture 2 to connect with the ecological block 3. The ecological block 3 is pre-set with a self-locking hole, and a steel bar is arranged in the self-locking hole. The anchor rod 5 is welded with the steel bar in the self-locking hole. The pre-buried depth of the anchor rod 5 is not less than 50 cm, and the steel bar end of the anchor rod 5 is L-shaped, with a bending length of 200 mm. By setting up structures such as wall 1, soil-stone mixture 2, ecological blocks 3, anchor rods 4, frame columns, concrete capping 5, green plants 6 and drainage holes 7, not only the overall structure is more beautiful, but also no hard and oppressive feeling is produced, thereby improving the beauty of the greening.

[0026] like Figure 1As shown, the frame column is arranged in the ecological block 3, and the ecological block 3 is provided with a frame column every 20m, and the main reinforcement of the frame column is not less than 10cm deep into the concrete capping and the concrete foundation. The concrete capping 5 is arranged on the top of the wall 2, and a greening ecological planting hole is formed between the ecological blocks 3, and the greening plants 6 are planted in the greening ecological planting hole. The drainage hole 7 is penetrated in the wall 1, and the drainage hole 7 is located at one end of the wall 1 and has a water inlet, and is located at one end of the soil-rock mixture 2 and has a drainage outlet. The water inlet is higher than the drainage outlet, and the water inlet and the drainage outlet are respectively wrapped with geotextiles. By setting the drainage hole 7 and wrapping the water inlet and the drainage outlet with geotextiles, not only can a better and smoother drainage effect be achieved, but also the clogging of the drainage hole can be effectively prevented, and at the same time, the accumulated water on the wall side can be effectively removed to maintain the beauty of the wall surface on the side of the wall.

[0027] During the specific construction, the wall 1 is made of slate concrete and is provided with an anti-skid front toe 11 for fixing the base block position of the ecological block.

[0028] The soil-stone mixture 2 has a thickness of 250-300 mm, and is uniformly mixed with 20% crushed sand, 30% base material nutrient soil and 50% clay, and the stone particle size is 5-40 mm.

[0029] The ecological planting holes of the main building blocks are designed to have a hole width of 110 mm for planting green plants.

[0030] The anchor rod 4 is made of φ16 steel bar after anti-corrosion treatment, with a length of 1050mm, a horizontal spacing of 1500mm, a vertical spacing of 600mm, a pre-buried depth of steel bars in the wall of not less than 50cm, an L-shaped treatment at the end of the steel bar, and a bending length of 200mm.

[0031] The ecological building block 3 also includes a pre-buried φ16 connecting steel bar with a length of 800 mm, which is used for welding with the end of the anchor rod 4.

[0032] The frame columns are made of C35 reinforced concrete with a cross-sectional size of 500×500mm. The main reinforcement of the frame columns penetrates into the top concrete and the concrete foundation by no less than 10cm, and a frame column is set every 20m for reinforcement.

[0033] The drainage hole 7 is made of PVC plastic drainage pipe with a diameter of 100 mm and a slope of 4%. The water outlet is wrapped with geotextile.

[0034] A drainage ditch 21 is set at the bottom of the soil-rock mixture 2. The permeable pipe adopts HDPE perforated corrugated pipe with a diameter of 200mm and an opening density of not less than 15%. The periphery of the pipe is backfilled with medium-coarse sand with a thickness of 500mm. A layer of permeable geotextile is laid on the top of the layer with a specification of 200g / m2 to filter rainwater and keep drainage unobstructed.

[0035] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial improvement of the utility model using this concept should be regarded as an infringement of the protection scope of the utility model.

Claims

1. An ecological retaining structure for urban roads, characterized in that: It includes a wall, a soil-stone mixture, an ecological block, an anchor rod, a frame column, a concrete top, green plants and a drainage hole. The wall toe is provided with an anti-skid front toe, the ecological block is arranged on the inner side of the anti-skid front toe, the ecological block is stacked from the wall toe to the wall top, and the soil-stone mixture is filled between the wall and the ecological block; the anchor rod is pre-buried in the wall and passes through the soil-stone mixture to be connected with the ecological block, the frame column is arranged in the ecological block, the concrete top is arranged on the top of the wall, green ecological planting holes are formed between the ecological blocks, the green plants are planted in the green ecological planting holes, and the drainage holes are penetrated through the wall.

2. The ecological retaining structure for urban roads according to claim 1 is characterized in that: The ecological building block is preset with a self-locking hole, a steel bar is arranged in the self-locking hole, and the anchor rod is welded to the steel bar in the self-locking hole.

3. The ecological retaining structure for urban roads according to claim 1 is characterized in that: The drainage hole is provided with a water inlet at one end of the wall and a drainage outlet at one end of the soil-rock mixture, and the water inlet is higher than the drainage outlet.

4. The ecological retaining structure for urban roads according to claim 3 is characterized in that: The water inlet and the drain outlet are respectively wrapped with geotextiles.

5. The ecological retaining structure for urban roads according to claim 1 is characterized in that: The anchor rod pre-buried depth is not less than 50cm, the steel bar end of the anchor rod is L-shaped, and the bending length is 200mm.

6. The ecological retaining structure for urban roads according to claim 1 is characterized in that: The ecological building blocks are provided with a frame column every 20m, and the main reinforcement of the frame column penetrates into the concrete top and the concrete foundation by no less than 10cm.

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