Landscape ecological structure and construction method of mountain roads based on corrugated plates

Abstract

The inter-mountain road landscape ecological structure and construction method based on corrugated plate solves the technical problem of how to use the top space of the arch culvert or culvert to build the ecological structure. The scheme adopted is to set it between the two sides of the mountain. The key is: the ecological structure includes a corrugated plate culvert, a culvert backfill roadbed, and an end wall of the hole. The culvert backfill roadbed is laid between the two sides of the mountain and the corrugated plate culvert, and between the two sides of the mountain above the corrugated plate culvert. The structure of the corrugated plate culvert includes a concrete base and an arc-shaped corrugated plate ceiling built on the concrete base. The structure of the arc-shaped corrugated plate ceiling is: a group of corrugated plates are overlapped along the inlet and outlet direction of the culvert with the help of reinforced steel, and the corrugated plates are fixedly connected to the concrete base. The beneficial effect of the present invention is that the top space of the inter-mountain culvert can be utilized through the structural design of the corrugated plate culvert and the culvert backfill roadbed.

Description

Technical Field

[0001] The invention belongs to the technical field of special road construction, and relates to the application technology of corrugated plates, in particular to a landscape ecological structure and a construction method for fully utilizing the top space of a culvert between mountains to realize water circulation. Background Art

[0002] Urban landscape is an important measure to protect the ecological environment and improve the urban living environment. With the improvement of people's living standards and people's higher and higher requirements for environmental quality, the requirements for urban landscape in cities are also getting higher and higher. In particular, the bridges and culverts between cities have become diversified from the original simple civil engineering structures. The scale and content of existing garden greening projects are also getting larger and larger. Many urban expressways need to pass through bridges or arch culverts. How to make full use of the top space of arch culverts or bridge culverts for greening, and how to reasonably save water for urban landscape and ecological garden greening are important topics in urban greening construction; in the past, urban landscape wetlands were pumped or irrigated by artificial methods, which was not only labor-intensive, but also time-consuming and labor-intensive. The country proposed to build an ecological civilization city. The so-called ecological green city is to make the best possible use of natural resources, establish a low-energy consumption, high-output, economical and conservation-oriented society, and form a sustainable, benign, modern green urban environment where people and nature live in harmony.

[0003] With the rapid development of urbanization, water resources are in short supply, and urban vegetation irrigation has become an important issue. Ordinary road vegetation can be watered by artificial sprinkling, but the arch top of the culvert is relatively high, making irrigation difficult. Therefore, we need to find a convenient way to change this problem. Summary of the invention

[0004] The purpose of the invention is to solve the technical problem of how to use the top space of an arch culvert or a culvert to build an ecological structure, and to design an inter-mountain road landscape ecological structure based on a corrugated plate and a construction method.

[0005] The technical solution adopted by the present invention is a mountain road landscape ecological structure based on corrugated plates, which is set between the mountains on both sides. The key is: the ecological structure includes a corrugated plate culvert, a culvert backfill roadbed, and a tunnel end wall. The culvert backfill roadbed is laid between the mountains on both sides and the corrugated plate culvert, and between the mountains on both sides above the corrugated plate culvert. The structure of the corrugated plate culvert includes a concrete base and an arc-shaped corrugated plate ceiling built on the concrete base. The structure of the arc-shaped corrugated plate ceiling is: a group of corrugated plates are overlapped along the inlet and outlet direction of the culvert with the help of reinforced steel, and the corrugated plates are fixedly connected to the concrete base.

[0006] The concrete base is composed of a group of concrete blocks overlapped along the inlet and outlet directions of the culvert, and settlement joints are arranged between the concrete blocks.

[0007] Waterproof geotextiles are arranged on the outer surfaces of the mountains on both sides and the corrugated plate culvert.

[0008] The culvert backfill roadbed is composed of a concrete layer, a sand layer, a crushed stone layer, a first permeable geotextile layer, and a soil layer from bottom to top. The concrete layer between the concrete base and the mountains on both sides is a structure with high ends and low middle.

[0009] The sand layer includes a fine sand layer and a coarse gravel layer which are laid in sequence from bottom to top; the crushed stone layer includes a small crushed stone layer and a large crushed stone layer which are laid in sequence from bottom to top.

[0010] The ecological structure also includes a water circulation treatment system, which includes a rainwater overflow collection tank, a return pipe and an outlet irrigation pipe preset in the soil layer, a permeable pipe arranged at the lowest point in the middle of the concrete layer, a rainwater storage tank buried outside the corrugated plate culvert, a water circulation pump, a rainwater overflow collection tank connected to the return pipe, the return pipe connection and the permeable pipe connected to the rainwater storage tank with the help of a return main pipe, and the rainwater storage tank connected to the outlet irrigation pipe.

[0011] A rainwater filter tank is arranged in front of the water inlet direction of the rainwater storage tank.

[0012] A second permeable geotextile layer is arranged between the concrete layer and the fine sand layer and between the permeable pipe and the fine sand layer.

[0013] The present invention also relates to a construction method for the above-mentioned mountain road landscape, the key point of which is: the construction method comprises the following steps:

[0014] a. Pour a concrete layer at the bottom of the trough-shaped mountain first, and ensure that the concrete layer between the concrete base and the mountains on both sides is a structure with high ends and low middle, and lay a permeable pipe at the low middle position;

[0015] b. Support the steel cage, determine the installation position of the corrugated plates on both sides, then support the steel cage mold, pour concrete on the steel cage to form a concrete base, and build the curved corrugated plate ceiling on the concrete base;

[0016] c. Drainage outlets are set on both sides of the bottom of the corrugated plate culvert, and then steel cages are laid at the opening position to pour concrete on the end wall of the opening, so that the mountains on both sides, the two end walls of the opening and the corrugated plate culvert form a backfill pit structure;

[0017] d. Backfill the sand layer, gravel layer, first permeable geotextile layer and soil layer in sequence on the concrete layer in the backfill pit structure;

[0018] e. Install rainwater overflow collection pool, rainwater storage tank, rainwater filtration tank, and lay return pipe, water outlet irrigation pipe and water circulation pump.

[0019] In the step d, before backfilling, a second permeable geotextile layer is laid on the concrete layer and the permeable pipe.

[0020] The beneficial effects of the present invention are as follows: through the structural design of the corrugated plate culvert and the culvert backfill roadbed, the top space of the culvert between the mountains can be utilized; through the multi-layer structure of the culvert backfill roadbed, good water permeability can be guaranteed, which is conducive to the growth of vegetation and has the significance of beautifying the environment; the structure can make full use of rainwater to store water and retain moisture for urban landscapes, and its infiltration system can infiltrate rainwater to the bottom through a pipe and flow into a rainwater filter tank, and then flow into a rainwater storage tank after being filtered by the filter tank; one or more overflow water collection pools are excavated in the soil layer, and the edge height of the water collection pool is slightly higher than the ground. When the rainwater is large When the rainwater cannot infiltrate in time, it can flow into the rainwater overflow collection pool, and quickly introduce the rainwater into the filter tank through the collection pipe to avoid soil erosion caused by excessive and fierce rainwater; its rainwater filter tank and rainwater storage tank are both steel corrugated pipe water tanks, which can store rainwater for a long time to prevent it from seeping into the ground and causing loss; the rainwater pressurized irrigation system is a sprinkler system that controls the water pump in the water tank through signal feedback when the soil moisture cannot meet the requirements, and flows into the soil layer through the outlet pipe to irrigate the soil layer and increase the moisture of the soil layer. When the requirements are met, the humidity monitor feedbacks the signal and the water pump stops working. This structural method can effectively utilize rainwater and prevent water resource waste. It can effectively solve the problem of water resource shortage in some cities and the problem of difficulty in irrigating the green soil layer on the top of the arch culvert in the city, greatly reducing labor intensity and saving a lot of expenses for urban and rural construction. This construction method can enable urban landscape arch culverts to play a greater composite functional value and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the ecological structure of the mountain road landscape of the present invention.

[0022] Figure 2 It is a schematic cross-sectional view of the ecological structure of the present invention.

[0023] Figure 3 yes Figure 2 Top view of the .

[0024] Figure 4 yes Figure 2 A partial enlarged view of area A.

[0025] Figure 5 It is a schematic diagram of a structural embodiment of a corrugated plate culvert in the present invention.

[0026] Figure 6 It is a schematic diagram of a structural embodiment of a water circulation treatment system in the present invention.

[0027] In the accompanying drawings, 1 is a corrugated plate culvert, 101 is a concrete base, 1011 is a concrete block, 1012 is a settlement joint, 102 is an arc-shaped corrugated plate ceiling, 1021 is a corrugated plate, 1022 is a reinforced steel, 201 is a concrete layer, 2021 is a fine sand layer, 2022 is a coarse gravel layer, 2031 is a small gravel layer, 2032 is a large gravel layer, 204 is a first permeable geotextile layer, 205 is a soil layer, 206 is a second permeable geotextile layer, 3 is a cave end wall, 4 is a mountain, 401 is a waterproof geotextile, 501 is a rainwater overflow collection pool, 502 is a return pipe, 503 is a permeable pipe, 504 is a rainwater storage tank, 505 is a water outlet irrigation pipe, and 506 is a rainwater filter tank. DETAILED DESCRIPTION

[0028] See also Figures 1 to 6 , when the present invention is implemented,

[0029] Step 1: Measurement and setting out;

[0030] Step 2: Foundation excavation;

[0031] Step 3: Concrete Base 101 Pouring:

[0032] Support the steel cage, determine the position of the channel steel for installing the corrugated plates 1021 on both sides, fix the anchor bolts, and then support the steel cage mold, pour concrete for the steel cage, and the concrete foundation can be set with settlement joints 1012 according to actual needs.

[0033] Step 4: Assembly of corrugated plate culvert 1;

[0034] The corrugated plate culvert 1 is constructed according to the corrugated plate construction requirements. A reinforcing steel 1022 is set every few turns according to actual needs and backfill height. A bellows expansion device can be set at the location where the settlement joint 1012 is located. After the construction is completed, sealant is applied to the lap joints and bolt positions, and asphalt paint is sprayed on the surface of the corrugated plate 1021 for corrosion protection.

[0035] Step 5: pouring of the opening end wall 3;

[0036] After the construction of the corrugated plate culvert 1 is completed, a steel cage is laid at the opening position, and then the concrete of the opening end wall 3 is poured, and drainage outlets are left on both sides of the bottom of the corrugated plate culvert 1.

[0037] Step 6: Backfill construction;

[0038] Before the corrugated plate culvert 1 is backfilled, a layer of waterproof geotextile 401 is first laid on the outside of the mountain 4 to be backfilled and the corrugated plate culvert 1, and then a layer of concrete layer 201 is poured at the bottom. The concrete layer 201 is set to be high at both ends and low in the middle. A permeable pipe 503 is pre-buried in the middle position and connected to the drainage outlet reserved in the end wall. A second permeable geotextile layer 206 is laid on the surface of the concrete layer 201 and the outside of the permeable pipe 503, and then a fine sand layer 2021, a coarse gravel layer 2022, a small crushed stone layer 2031, a large crushed stone layer 2032, a first permeable geotextile layer 204, and a vegetation planting soil layer 205 are backfilled in sequence. After the rainwater seeps through different backfill layers, it is finally collected in the permeable pipe 503 and flows into the return pipe 502 through the permeable pipe 503.

[0039] Step 7: Excavation of foundation pits for rainwater filter tank 506 and rainwater storage tank 504; the rainwater filter tank 506 is divided into two spaces by the middle filter layer to filter the rainwater flowing into the tank body. The rainwater storage tank 504 is buried below the road surface, and the upper cover can be opened to facilitate the cleaning of impurities in the water tank and the maintenance of the circulating water pump.

[0040] Step 8: Install the rainwater filter tank 506 and the rainwater storage tank 504;

[0041] The rainwater filter tank 506 and the rainwater storage tank 504 both use steel bellows water tanks. The construction of the steel bellows water tank is carried out in accordance with the construction requirements of the corrugated plate. An additional filter layer is provided in the rainwater filter tank.

[0042] Step 9: Pipeline laying;

[0043] One or more rainwater overflow collection pools 501 are excavated in the soil layer 205. The edges of the rainwater overflow collection pools 501 are slightly higher than the ground and are connected to the rainwater collection pipes at the bottom. After the position of the rainwater collection pipes is determined, the pipes are excavated and buried. The rainwater irrigation pipes can be pre-buried at the same time as the rainwater collection pipes. The starting position of the rainwater irrigation pipes is connected to a circulating water pump. Finally, the irrigation pipes and the quick rainwater collection pipes are passed through the end walls and connected to the pipes buried in the soil layer 205. Sprinkler pipes are buried in the soil layer.

[0044] Step 10: Laying of temperature control system;

[0045] The temperature and humidity sensing probe is buried in the soil layer 205, and the line is finally collected in the electric control box in the corrugated pipe arch culvert, and the water pump control circuit is also collected in the electric control box. The temperature and humidity detection probe is buried in the soil layer, which can detect the soil moisture in real time, and send the monitored temperature and humidity values ​​to the microprocessor system in the operation box in the corrugated pipe arch culvert in real time. When the temperature and humidity in the soil are lower than the set value, the microprocessor system feedback signal controls the solenoid valve in the operation box, and then the circulating water pump in the rainwater storage tank 504 starts to work, and then pressurizes the water to the sprinkler system through the water outlet irrigation pipe 505. When the soil temperature and humidity meet the requirements, the signal feedback prompts the solenoid valve to close and the circulating water pump stops working.

[0046] Step 11: Planting vegetation in the soil layer. When planting vegetation at the bottom, pay attention to the location of the pipes and humidity probes to prevent them from being damaged during construction.

[0047] The above construction process and system structure mainly recycle rainwater, monitor the temperature and humidity of the soil in real time with monitors, and use automation to solve the problem of urban water shortage and difficult irrigation of arch culvert top vegetation. Its structure rationally utilizes rainwater resources, builds a conservation-oriented society, improves urban arch culverts into urban landscapes, and exerts greater composite functional value and social benefits.

Claims

1. A mountain road landscape ecological structure based on corrugated plates, arranged between two mountains (4), characterized in that: The ecological structure comprises a corrugated plate culvert (1), a culvert backfill roadbed, and a hole end wall (3); the culvert backfill roadbed is laid between the mountains (4) on both sides and the corrugated plate culvert (1), and between the mountains (4) on both sides above the corrugated plate culvert (1); the structure of the corrugated plate culvert (1) comprises a concrete base (101) and an arc-shaped corrugated plate ceiling (102) built on the concrete base (101); the structure of the arc-shaped corrugated plate ceiling (102) is: a group of corrugated plates (1021) are overlapped along the inlet and outlet direction of the culvert by means of reinforced steel (1022); the corrugated plates (1021) are fixedly connected to the concrete base (101); The culvert backfill roadbed comprises, from bottom to top, a concrete layer (201), a sand layer, a crushed stone layer, a first permeable geotextile layer (204), and a soil layer (205); the concrete layer (201) between the concrete base (101) and the mountains (4) on both sides is a structure with high ends and low middle. The ecological structure also includes a water circulation treatment system, which includes a rainwater overflow collection tank (501), a return pipe (502) and an outlet irrigation pipe (505) preset in the soil layer (205), a permeable pipe (503) arranged at the lowest point in the middle of the concrete layer (201), a rainwater storage tank (504) buried outside the corrugated plate culvert (1), a water circulation pump, the rainwater overflow collection tank (501) is connected to the return pipe (502), the return pipe (502) is connected to the permeable pipe (503) and connected to the rainwater storage tank (504) by means of the return main pipe, and the rainwater storage tank (504) is connected to the outlet irrigation pipe (505).

2. The mountain road landscape ecological structure based on corrugated board according to claim 1 is characterized by: The concrete base (101) is composed of a group of concrete blocks (1011) overlapped along the inlet and outlet direction of the culvert, and settlement joints (1012) are arranged between the concrete blocks (1011).

3. The mountain road landscape ecological structure based on corrugated board according to claim 1 is characterized by: Waterproof geotextiles (401) are provided on the outer surfaces of the mountains (4) on both sides and the corrugated plate culvert (1).

4. The mountain road landscape ecological structure based on corrugated board according to claim 1 is characterized by: The sand layer comprises a fine sand layer (2021) and a coarse gravel layer (2022) laid sequentially from bottom to top; the crushed stone layer comprises a small crushed stone layer (2031) and a large crushed stone layer (2032) laid sequentially from bottom to top.

5. The mountain road landscape ecological structure based on corrugated board according to claim 1 is characterized by: A rainwater filter tank (506) is provided in front of the water inlet direction of the rainwater storage tank (504).

6. The mountain road landscape ecological structure based on corrugated board according to claim 1 is characterized by: A second water-permeable geotextile layer (206) is provided between the concrete layer (201) and the fine sand layer (2021) and between the water-permeable pipe (503) and the fine sand layer (2021).

7. The method for constructing mountain road landscape according to claim 1, characterized in that: The construction method comprises the following steps: a. First, pour a concrete layer (201) at the bottom of the trough-shaped mountain, and ensure that the concrete layer (201) between the concrete base (101) and the mountain bodies (4) on both sides is a structure with high ends and low middle, and lay a permeable pipe (503) at the low middle position; b. Supporting a steel cage, determining the installation positions of the corrugated plates on both sides, and then supporting a steel cage mold, pouring concrete on the steel cage to form a concrete base (101), and building a curved corrugated plate ceiling (102) on the concrete base (101); c. Drainage outlets are provided on both sides of the bottom of the corrugated plate culvert (1), and then a steel cage is laid at the opening position, and concrete is poured on the opening end wall (3), so that the mountain bodies (4) on both sides, the two opening end walls (3) and the corrugated plate culvert (1) form a backfill pit structure; d. backfilling the concrete layer (201) in the backfill pit structure with a sand layer, a crushed stone layer, a first permeable geotextile layer (204), and a soil layer (205) in sequence; e. Install the rainwater overflow collection pool (501), rainwater storage tank (504), rainwater filter tank (506), and lay the return pipe (502), water outlet irrigation pipe (505) and water circulation pump.

8. The method for constructing mountain road landscape according to claim 7, characterized in that: Before backfilling in step d, a second permeable geotextile layer (206) is laid on the concrete layer (201) and the permeable pipe (503).

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