Rock slope landscape greening drainage ditch system

Abstract

The invention discloses a rock slope landscape greening drainage ditch system, and belongs to the technical field of slope engineering. The system comprises a groove transversely formed in the surface of the rock slope, a drainage channel is arranged in the groove, the space between the periphery of the drainage channel and the inner wall of the groove is filled with planting soil, and green plants are planted in the planting soil. A water permeable structure is arranged between the top and the side face of the drainage channel and the planting soil, a plurality of water restraining and intercepting walls are arranged in the drainage channel in the extending direction of the drainage channel at intervals, and the water restraining and intercepting walls are lower than the top of the drainage channel. Rainwater permeation storage is achieved through the water permeable structure and the water restraining and intercepting wall, water is continuously supplied to green plants in the dry season, and the vegetation survival rate is increased; when the rainfall is large, redundant rainwater is rapidly drained through the drainage channel, and the stability of the slope is guaranteed. The system has the functions of water collection, water retention and drainage, and is simple in structure, convenient to maintain and suitable for ecological restoration of steep rock slopes.

Description

Technical Field

[0001] The invention relates to the technical field of slope engineering, and in particular to a rock slope landscape greening drainage ditch system. Background Art

[0002] With the rapid development of the national economy and the implementation of the sustainable development strategy, infrastructure such as transportation, hydropower, and mining has developed rapidly. Along with the construction of these basic projects, a large amount of construction excavation and rock slopes have been brought about. The slope of the rock slope after excavation is steep, and it is difficult for the naturally weathered soil particles on the slope and the soil particles brought by the wind to remain on the slope; at the same time, the rainwater runoff speed on the slope is large and cannot be retained on the slope. As a result, the rock slope does not have the soil environment necessary for vegetation growth, and there is a lack of water, and the conditions for vegetation growth are poor. Long-term exposed rock slopes do not meet the current requirements of ecological civilization construction and civilized construction, and may cause landslides and soil erosion geological disasters. Therefore, it is particularly urgent to invent a technology that can meet both the concept of comprehensive slope management and protection and the requirements of ecological restoration.

[0003] For rock slope landscaping, existing technologies include three-dimensional vegetation net protection, wet spraying, imported soil spraying, mortar-laid stone skeleton grass planting slope protection, and ecological bag greening technology. However, existing technologies generally have the following disadvantages:

[0004] (1) It is difficult to apply to steep rock slopes. Wet spraying and soil spraying are mainly used for soil slopes; mortar-laid stone skeleton grass slope protection and ecological bag greening technology are difficult to stabilize themselves for high and steep slopes; engineering rock slopes cannot provide a stable water source, and three-dimensional vegetation networks are difficult to ensure the long-term greening effect of rock slopes.

[0005] (2) The sustainability of greening effect is poor. Wet spraying and foreign soil spraying are difficult to fix the soil, the soil is poor, and it is difficult for seeds to attach to it. Wet spraying, foreign soil spraying, mortar-laid stone skeleton grass planting slope protection, ecological bag greening technology and three-dimensional vegetation network, on rock slopes, especially in dry areas with little rainfall, the water and fertilizer supply is insufficient, and the greening effect is affected by external factors such as temperature difference changes on the slope and sunshine. The long-term greening effect cannot be guaranteed.

[0006] (3) Difficult to maintain in the later stage. Rock slopes are generally steep, and some slopes are hundreds of meters high, which basically do not meet the conditions for slope maintenance.

[0007] (4) The construction process is complex and the cost is high. Summary of the invention

[0008] In order to overcome the above-mentioned deficiencies in existing slope protection projects, the technical problem to be solved by the present invention is to provide a rock slope landscape greening drainage ditch system that can meet both the concept of comprehensive slope management and protection and the requirements of ecological restoration.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] A rock slope landscape greening drainage ditch system comprises a groove transversely arranged on the surface of the rock slope, a drainage channel is arranged in the groove, planting soil is filled between the outer periphery of the drainage channel and the inner wall of the groove, green plants are planted in the planting soil, a permeable structure is arranged between the top and sides of the drainage channel and the planting soil, a plurality of water-binding walls are arranged at intervals in the drainage channel along its extension direction, and the height of the water-binding walls is lower than the top of the drainage channel.

[0011] Furthermore, a horse path is provided on the surface of the rock slope, and the groove is arranged at the junction between the inner side of the horse path and the surface of the rock slope.

[0012] Furthermore, the trench is enclosed by an outer concrete side wall, a concrete bottom plate and an inner concrete side wall, wherein the concrete bottom plate is laid on the horseway, the inner concrete side wall is abutted against the surface of the rock slope, and the outer concrete side wall is vertically arranged on the horseway.

[0013] Furthermore, the drainage channel is a prefabricated plastic pipe, steel pipe or concrete pipe, and the water-permeable structure is a water-permeable hole arranged on the pipe.

[0014] Furthermore, the drainage channel is an on-site masonry structure, including a concrete cover plate and a permeable concrete plate. The permeable concrete plate is arranged on a concrete bottom plate opposite to the inner concrete side wall. The concrete cover plate is erected on the top of the permeable concrete plate and the inner concrete side wall, and the concrete cover plate is provided with permeable holes.

[0015] Furthermore, a filter material is provided at one end of the water permeable hole that contacts the planting soil.

[0016] Furthermore, the green plants include climbing plants such as vines, shrubs and herbaceous plants.

[0017] The beneficial effects of the present invention are as follows: by setting a drainage channel and planting soil in the groove, setting a permeable structure between the drainage channel and the planting soil, and setting a water-binding wall in the drainage channel, the entire structure can simultaneously function as a conventional drainage ditch and have a good water collection and retention function. It can effectively collect and preserve rainwater on the slope surface at ordinary times, and continuously provide water sources for green plants in the dry season, thereby improving the vegetation survival rate and greening effect of the rock slope; when the rainfall is large, the excess rainwater can be discharged from the slope through the drainage channel to ensure the stability and safety of the slope. In addition, the entire system has a simple structure and is easy to maintain. It can be applied to all rock slopes without any changes to the slope structure, and will not affect the excavation and support of the slope. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a cross-sectional view of the present invention;

[0019] Figure 2 It is a main sectional view of the present invention.

[0020] Marked in the figure are, 1- rock slope, 2- groove, 3- drainage channel, 4- planting soil, 5- green plants, 6- horse path, 21- outer concrete side wall, 22- concrete bottom plate, 23- inner concrete side wall, 24- concrete cover plate, 25- permeable concrete plate, 26- permeable hole, 27- anti-filter material, 31- water-binding wall, 32- water-retaining trough, 33- flow channel, 51- climbing plants of vine type, 52- shrubs, 53- herbaceous plants. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings.

[0022] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not specific to the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0023] like Figure 1 , Figure 2 As shown, a rock slope landscape greening drainage ditch system provided by the present invention includes a groove 2 horizontally arranged on the surface of the rock slope 1, a drainage channel 3 is arranged in the groove 2, and planting soil 4 is filled between the outer periphery of the drainage channel 3 and the inner wall of the groove 2, and green plants 5 are planted in the planting soil 4. A permeable structure is provided between the top and side of the drainage channel 3 and the planting soil 4, and a plurality of water-binding walls 31 are arranged at intervals in the drainage channel 3 along its extension direction, and the height of the water-binding walls 31 is lower than the top of the drainage channel 3.

[0024] The grooves on the traditional slope structure are only used as drainage channels. The present invention transforms the existing grooves and sets up a drainage channel 3 inside to collect and drain rainwater, and fills planting soil 4 between the drainage channel 3 and the inner wall of the groove 2 to plant green plants 5. The top surface of the planting soil 4 is preferably lower than the top of the groove 2, so that the groove 2 has both drainage and soil consolidation functions. In addition, by arranging permeable structures on the top and sides of the drainage channel 3, and arranging water-binding walls 31 at intervals in the drainage channel 3, a water-retaining groove 32 is formed between two adjacent water-binding walls 31. Normally, rainwater can enter the drainage channel 1 through the permeable structure and be stored in the water-retaining groove 32, and provide water for the green plants 5 through the permeable structure on the side. If there is a lot of rain, the water flow exceeding the water-binding wall 31 will be discharged downstream along the flow channel 33 between the top of the water-binding wall 31 and the top of the drainage channel 3, thereby playing a role in water collection, water retention and drainage, which can reduce the erosion of water flow on the planting soil 4, and at the same time improve the vegetation survival rate and greening effect of the rock slope.

[0025] In slope control projects, a plurality of horse paths 6 are usually arranged transversely on the slope. Therefore, in order to facilitate the construction and maintenance of the entire drainage system, the groove 2 can be preferably arranged at the junction of the inner side of the horse path 6 and the surface of the rock slope 1.

[0026] The specific structure of the groove 2 can be as follows Figure 1 As shown, the trench 2 is enclosed by an outer concrete side wall 21, a concrete bottom plate 22 and an inner concrete side wall 23, wherein the concrete bottom plate 22 is laid on the horseway 6, the inner concrete side wall 23 is close to the surface of the rock slope 1, and the outer concrete side wall 21 is vertically arranged on the horseway 6. The trench 2 built with concrete can ensure the stability of its structure, and waterproofing treatment must be done during the building process to prevent water leakage.

[0027] The present invention provides two solutions for the specific structure and setting of the drainage channel 3. The first solution is that the drainage channel 3 is a prefabricated plastic pipe, steel pipe or concrete pipe, and the permeable structure is a permeable hole 26 set on the pipe. If the drainage channel 3 is a concrete pipe, it can be directly made of permeable concrete. The second solution is that Figure 1As shown, the drainage channel 3 is an on-site masonry structure, including a concrete cover plate 24 and a permeable concrete plate 25. The permeable concrete plate 25 is arranged on the concrete bottom plate 22 relative to the inner concrete side wall 23. The concrete cover plate 24 is set on the top of the permeable concrete plate 25 and the inner concrete side wall 23. The concrete cover plate 24 is provided with permeable holes 26. Both schemes can achieve the functions of water collection, water retention and drainage. The installation process of scheme one will be simpler, but it is more difficult to clean and maintain in the later stage. The construction of scheme two is slower in the early stage, but it will be more convenient to open the concrete cover plate 24 for inspection and maintenance in the later stage. In addition, in scheme two, the permeable concrete plate 25 is used to provide moisture to the planting soil 4, which can make the permeability effect more uniform.

[0028] In addition, in order to prevent the sand in the planting soil 4 from entering the drainage channel 3, an anti-filter material 27 can be set at the end of the water permeable hole 26 that contacts the planting soil 4. The anti-filter material 27 can allow water to pass through while preventing fine soil from being carried away, thereby preventing the sand from clogging the drainage channel 3.

[0029] For the planted green plants 5, the present invention mainly selects three categories, including vine-like climbing plants 51, shrubs 52 and herbaceous plants 53, so as to form a dense green vegetation layer that fully covers the slope and improve the greening effect.

Claims

1. A rock slope landscaping drainage ditch system, characterized by: The invention comprises a groove (2) arranged transversely on the surface of a rock slope (1), wherein a drainage channel (3) is arranged in the groove (2), planting soil (4) is filled between the outer periphery of the drainage channel (3) and the inner wall of the groove (2), and green plants (5) are planted in the planting soil (4), and a permeable structure is arranged between the top and side of the drainage channel (3) and the planting soil (4), and a plurality of water-binding walls (31) are arranged at intervals in the drainage channel (3) along its extension direction, and the height of the water-binding walls (31) is lower than the top of the drainage channel (3).

2. A rock slope landscaping drainage ditch system as claimed in claim 1, characterized in that: The surface of the rock slope (1) is provided with a horse path (6), and the groove (2) is arranged at the connection position between the inner side of the horse path (6) and the surface of the rock slope (1).

3. A rock slope landscaping drainage ditch system as claimed in claim 2, characterized in that: The groove (2) is enclosed by an outer concrete side wall (21), a concrete bottom plate (22) and an inner concrete side wall (23), wherein the concrete bottom plate (22) is laid on the horseway (6), the inner concrete side wall (23) is close to the surface of the rock slope (1), and the outer concrete side wall (21) is vertically arranged on the horseway (6).

4. A rock slope landscaping drainage ditch system as claimed in claim 1, characterized in that: The drainage channel (3) is a prefabricated plastic pipe, steel pipe or concrete pipe, and the water-permeable structure is a water-permeable hole (26) arranged on the pipe.

5. A rock slope landscaping drainage ditch system as claimed in claim 3, characterized in that: The drainage channel (3) is a field-built structure, comprising a concrete cover plate (24) and a permeable concrete plate (25); the permeable concrete plate (25) and the inner concrete side wall (23) are arranged on the concrete bottom plate (22) opposite to each other; the concrete cover plate (24) is mounted on the top of the permeable concrete plate (25) and the inner concrete side wall (23); and the concrete cover plate (24) is provided with permeable holes (26).

6. A rock slope landscaping drainage ditch system as claimed in claim 4 or 5, characterized in that: An anti-filter material (27) is provided at one end of the water permeable hole (26) that contacts the planting soil (4).

7. A rock slope landscaping drainage ditch system as claimed in claim 1, characterized in that: The green plants (5) include vine-like climbing plants (51), shrub-like plants (52) and herbaceous plants (53).

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