Mine slope vegetation concrete bamboo pipe water retaining and catchment system and application thereof

Abstract

The invention relates to the technical field of mine side slope ecological restoration, in particular to a mine side slope vegetation concrete bamboo pipe stagnant water catchment system and application thereof.The mine side slope vegetation concrete bamboo pipe stagnant water catchment system comprises a plurality of drill holes formed in a side slope body, bio-based resin containing seeds is poured into the bottoms of the drill holes, and stagnant water catchment bamboo pipes are inserted into the drill holes; a hanging net is further arranged on the surface of the side slope body and fixedly connected with the bamboo pipes through carbon fiber ropes. According to the mine slope vegetation concrete bamboo pipe water retention and catchment system and the application thereof, the water retention and catchment functions are achieved, rainfall water can be effectively collected and stored, the soil wettability is improved, rooting and expansion of plant root systems are promoted, and the problem of water and soil loss of a mine slope is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of mine slope ecological restoration, in particular to a mine slope vegetation concrete bamboo pipe water retention and collection system and application thereof. Background Art

[0002] After mining, slope areas generally face serious soil erosion and ecological degradation problems. In order to effectively repair these damaged areas, vegetated concrete, as an innovative ecological restoration material, has shown great application prospects. However, the application of vegetated concrete for ecological restoration on steep mine slopes faces many challenges and considerations. For example, on steep slopes, the strong scouring caused by rainfall will not only cause erosion of the surface of the vegetated concrete, but also cause rapid loss of water, which is difficult to retain in the vegetated concrete, and directly affects the survival and growth of plant grass seeds. Therefore, it is crucial to construct an effective water retention and water collection system to ensure the water supply required for vegetation growth.

[0003] In order to ensure the effectiveness of ecological restoration of vegetation concrete on mine slopes, it is particularly important to improve its water retention and water collection capabilities; water retention measures are aimed at slowing down the speed of water flow on the slopes, reducing the scouring force on the soil and vegetation, thereby reducing the risk of soil erosion; water collection measures are to allow rainwater more time to penetrate into the soil, increase the soil's moisture content, and promote the growth and development of plant roots.

[0004] At present, the existing vegetated concrete technology mainly focuses on material formulation and construction technology, while there is relatively little research on how to implement effective water retention and water collection measures. The slope of the mine slope is usually between 50-70 degrees. Even if vegetated concrete is used for ecological restoration, the impact of rainfall will still cause surface erosion. In addition, it is difficult to carry out effective watering and maintenance, resulting in poor growth of plant grass seeds and difficult to ensure the ecological restoration effect. Summary of the invention

[0005] The purpose of the present invention is to provide a mine slope vegetation concrete bamboo pipe water retention and collection system and its application, which has water retention and collection functions, can effectively collect and store rainfall water, improve soil moisture, promote the rooting and expansion of plant roots, and effectively solve the problem of soil erosion on mine slopes.

[0006] To achieve the above-mentioned purpose, the present invention provides a mine slope vegetation concrete bamboo pipe water retention and drainage system, including a plurality of drill holes arranged on the slope body, the bottom of the drill holes are poured with a bio-based resin containing seeds, bamboo pipes for water retention and drainage are inserted into the drill holes, and a hanging net is also provided on the surface of the slope body, and the hanging net is fixedly connected to the bamboo pipe by a carbon fiber rope.

[0007] Preferably, the bamboo tube is made of freshly picked bamboos with an age of more than 5 months, the inner diameter of the bamboo tube is 5-20 cm, the length is 20-40 cm, and the wall thickness of the bamboo tube is 3-6 mm.

[0008] Preferably, the cross section of the bamboo tube is a 2 / 3 arc shape, the interior of the bamboo tube is a hollow structure, one end of the bamboo tube is a flat opening, the other end of the bamboo tube is a bevel opening, the angle of the bevel opening is ≤30°, and the length of the bevel opening is 4 cm.

[0009] Preferably, a plurality of evenly spaced tube holes are provided on one side of the bamboo tube, the spacing between two adjacent tube holes is 1-2 cm, and the size of the tube holes is 0.2-0.5 cm.

[0010] Preferably, the borehole diameter is 5-20 cm, the depth of the borehole is 5-10 cm, the spacing between two adjacent boreholes is 0.5 m-1 m, and the angle between the axis of the borehole and the tangent of the slope body is 30-60°.

[0011] Preferably, the hanging net is fitted to the surface of the slope body, and the carbon fiber rope is connected to the tube hole of the bamboo tube.

[0012] Preferably, the hanging net is sprayed with vegetation concrete by a layered spraying process, the thickness of the bottom layer of vegetation concrete is 3-5 cm, the thickness of the top layer of vegetation concrete is 4-6 cm, and a biosurfactant is sprayed between the bottom layer of vegetation concrete and the top layer of vegetation concrete.

[0013] Preferably, an antifouling and degradable nanofiber membrane is sleeved on the bamboo tube before spraying the vegetation concrete, and the antifouling and degradable nanofiber membrane is removed after the vegetation concrete is formed.

[0014] Preferably, the antifouling and degradable nanofiber membrane is a bag-like structure, the inner diameter of the bag-like structure is 6-25 cm, the length of the bag-like structure is 20-40 cm, and the mouth of the bag-like structure is fixed with a bio-based degradable tape.

[0015] The invention discloses an application of a bamboo pipe water retention and collection system for vegetation concrete on a mine slope, which is applied to the repair of vegetation concrete on a mine slope in areas where the rainfall is ≥25.0 mm within 12 hours or ≥50 mm within 24 hours.

[0016] Beneficial effects of the present invention:

[0017] The present invention provides a mine slope vegetation concrete bamboo pipe water retention and drainage system. By arranging bamboo pipes for water retention and drainage on the mine slope, rainfall water can be effectively collected and stored. The pipe holes arranged on the bamboo pipes can infiltrate the collected and stored rainfall water into the concrete of the slope vegetation, thereby increasing the soil moisture of the slope and promoting the rooting and expansion of plant roots. At the same time, the bio-based resin containing seeds poured into the borehole can also grow under suitable conditions, and the bamboo pipes themselves can also germinate and grow, which significantly improves the ecological environment, reduces sand and gravel loss, effectively promotes soil and water conservation and ecological restoration on the mine slope, and provides a solid guarantee for regional ecological balance.

[0018] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a mine slope vegetation concrete bamboo pipe water retention and collection system of the present invention;

[0020] Figure 2 It is a cross-sectional schematic diagram of a bamboo tube of the present invention.

[0021] Reference numerals:

[0022] 1. Slope body; 2. Bamboo tube; 3. Vegetation concrete; 4. Hanging net; 5. Plane opening; 6. Inclined opening; 7. Pipe hole. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments. Unless otherwise defined, the technical terms or scientific terms used in the present invention should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs. The above-mentioned features or features mentioned in the specific examples mentioned in the present invention can be combined arbitrarily, and these specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0024] Example 1

[0025] See also Figure 1 to Figure 2 As shown in the figure, a mine slope vegetation concrete bamboo pipe water retention and drainage system provided by the present invention includes a plurality of drill holes set on the slope body 1, the diameter of the drill hole is 5 cm, the depth of the drill hole is 5 cm, the spacing between two adjacent drill holes is 0.5 m, and the angle between the axis of the drill hole and the tangent line of the slope body 1 is 30°. The bottom of the drill hole is poured with a bio-based resin containing seeds. Under suitable conditions, the seeds in the bio-based resin will germinate and grow, forming a vegetation layer on the surface of the slope body 1, improving the ecological environment of the slope body 1 and reducing the loss of sand and gravel.

[0026] A bamboo tube 2 for collecting stagnant water is inserted into the borehole. The bamboo tube 2 is made of freshly picked bamboos over 5 months old. The inner diameter of the bamboo tube 2 is 5 cm, the length is 20 cm, and the wall thickness of the bamboo tube 2 is 3 mm. The cross section of the bamboo tube 2 is a 2 / 3 arc shape, and the interior of the bamboo tube 2 is a hollow structure, which is convenient for collecting rainwater and storing the collected rainwater. One end of the bamboo tube 2 is a plane opening 5, and the other end of the bamboo tube 2 is an inclined opening 6. The angle of the inclined opening 6 is ≤30°, and the length of the inclined opening 6 is 4 cm. A plurality of evenly spaced tube holes 7 are provided on one side of the bamboo tube 2. The spacing between two adjacent tube holes 7 is 1 cm, and the size of the tube hole 7 is 0.2 cm. This facilitates the rainwater collected in the bamboo tube 2 to penetrate into the soil of the slope body 1 through the tube holes 7, improve the moisture content of the soil, and provide favorable conditions for the growth of plants.

[0027] A hanging net 4 is also provided on the surface of the slope body 1. The inserted bamboo tube 2 can be used as a fixing point of the hanging net 4. The hanging net 4 is fixedly connected to the bamboo tube 2 through a carbon fiber rope. The hanging net 4 fits the surface of the slope body 1. The carbon fiber rope is connected to the tube hole 7 of the bamboo tube 2, so that the hanging net 4 is firmly connected. Then, the vegetation concrete 3 is sprayed on the hanging net 4 by a layered spraying process. The thickness of the bottom layer of the vegetation concrete 3 is 3 cm, and the thickness of the top layer of the vegetation concrete 3 is 4 cm. A biosurfactant is sprayed between the bottom layer and the top layer to further provide a favorable environment for the growth of vegetation.

[0028] Before spraying the vegetation concrete 3, an antifouling and degradable nanofiber membrane is set on the bamboo tube 2, and the antifouling and degradable nanofiber membrane is removed after the vegetation concrete 3 is formed. The antifouling and degradable nanofiber membrane is a bag-like structure, the inner diameter of the bag-like structure is 6 cm, the length of the bag-like structure is 20 cm, and the mouth of the bag-like structure is fixed with a bio-based degradable tape. It can prevent the vegetation concrete 3 from entering the bamboo tube 2 during spraying, blocking the bamboo tube 2, and affecting the water retention and water collection function of the bamboo tube 2.

[0029] Example 2

[0030] The present invention provides a mine slope vegetation concrete bamboo pipe water retention and drainage system, comprising a plurality of boreholes arranged on the slope body 1, the borehole diameter is 10 cm, the borehole depth is 8 cm, the spacing between two adjacent boreholes is 0.8 m, and the angle between the borehole axis and the tangent line at the slope body 1 is 45°. A bio-based resin containing seeds is poured at the bottom of the borehole, and under suitable conditions, the seeds in the bio-based resin will germinate and grow, forming a vegetation layer on the surface of the slope body 1, improving the ecological environment of the slope body 1 and reducing the loss of sand and gravel.

[0031] A bamboo tube 2 for collecting stagnant water is inserted into the borehole. The bamboo tube 2 is made of freshly picked bamboos aged more than 5 months. The inner diameter of the bamboo tube 2 is 10 cm, the length is 30 cm, and the wall thickness of the bamboo tube 2 is 5 mm. The cross section of the bamboo tube 2 is a 2 / 3 arc shape, and the interior of the bamboo tube 2 is a hollow structure, which is convenient for collecting rainwater and storing the collected rainwater. One end of the bamboo tube 2 is a plane opening 5, and the other end of the bamboo tube 2 is an inclined opening 6. The angle of the inclined opening 6 is ≤30°, and the length of the inclined opening 6 is 4 cm. A plurality of evenly spaced tube holes 7 are provided on one side of the bamboo tube 2. The spacing between two adjacent tube holes 7 is 1 cm, and the size of the tube hole 7 is 0.4 cm. This facilitates the rainwater collected in the bamboo tube 2 to penetrate into the soil of the slope body 1 through the tube holes 7, improve the moisture content of the soil, and provide favorable conditions for the growth of plants.

[0032] A hanging net 4 is also provided on the surface of the slope body 1. The inserted bamboo tube 2 can be used as a fixing point of the hanging net 4. The hanging net 4 is fixedly connected to the bamboo tube 2 through a carbon fiber rope. The hanging net 4 fits the surface of the slope body 1. The carbon fiber rope is connected to the tube hole 7 of the bamboo tube 2, so that the hanging net 4 is firmly connected. Then, the vegetation concrete 3 is sprayed on the hanging net 4 by a layered spraying process. The thickness of the bottom layer of the vegetation concrete 3 is 4 cm, and the thickness of the top layer of the vegetation concrete 3 is 5 cm. A biosurfactant is sprayed between the bottom layer and the top layer of the vegetation concrete 3, further providing a favorable environment for the growth of vegetation.

[0033] Before spraying the vegetation concrete 3, an antifouling and degradable nanofiber membrane is set on the bamboo tube 2, and the antifouling and degradable nanofiber membrane is removed after the vegetation concrete 3 is formed. The antifouling and degradable nanofiber membrane is a bag-like structure, the inner diameter of the bag-like structure is 15 cm, the length of the bag-like structure is 30 cm, and the mouth of the bag-like structure is fixed with a bio-based degradable tape. It can prevent the vegetation concrete 3 from entering the bamboo tube 2 during spraying, blocking the bamboo tube 2, and affecting the water retention and water collection function of the bamboo tube 2.

[0034] Example 3

[0035] The present invention provides a mine slope vegetation concrete bamboo pipe water retention and drainage system, comprising a plurality of boreholes arranged on a slope body 1, wherein the borehole diameter is 20 cm, the borehole depth is 10 cm, the spacing between two adjacent boreholes is 1 m, and the angle between the borehole axis and the tangent line at the slope body 1 is 60°. A bio-based resin containing seeds is poured at the bottom of the borehole, and under suitable conditions, the seeds in the bio-based resin will germinate and grow, forming a vegetation layer on the surface of the slope body 1, thereby improving the ecological environment of the slope body 1 and reducing the loss of sand and gravel.

[0036] A bamboo tube 2 for collecting stagnant water is inserted into the borehole. The bamboo tube 2 is made of freshly picked bamboos aged more than 5 months. The inner diameter of the bamboo tube 2 is 20 cm, the length is 40 cm, and the wall thickness of the bamboo tube 2 is 6 mm. The cross section of the bamboo tube 2 is a 2 / 3 arc shape, and the interior of the bamboo tube 2 is a hollow structure, which is convenient for collecting rainwater and storing the collected rainwater. One end of the bamboo tube 2 is a plane opening 5, and the other end of the bamboo tube 2 is an inclined opening 6. The angle of the inclined opening 6 is ≤30°, and the length of the inclined opening 6 is 4 cm. A plurality of evenly spaced tube holes 7 are provided on one side of the bamboo tube 2. The spacing between two adjacent tube holes 7 is 2 cm, and the size of the tube hole 7 is 0.5 cm. Thereby, the rainwater collected in the bamboo tube 2 is convenient to penetrate into the soil of the slope body 1 through the tube holes 7, improve the moisture of the soil, and provide favorable conditions for the growth of plants.

[0037] A hanging net 4 is also provided on the surface of the slope body 1. The inserted bamboo tube 2 can be used as a fixing point of the hanging net 4. The hanging net 4 is fixedly connected to the bamboo tube 2 through a carbon fiber rope. The hanging net 4 fits the surface of the slope body 1. The carbon fiber rope is connected to the tube hole 7 of the bamboo tube 2, so that the hanging net 4 is firmly connected. Then, the vegetation concrete 3 is sprayed on the hanging net 4 by a layered spraying process. The thickness of the bottom layer of the vegetation concrete 3 is 5 cm, and the thickness of the top layer of the vegetation concrete 3 is 6 cm. A biosurfactant is sprayed between the bottom layer and the top layer to further provide a favorable environment for the growth of vegetation.

[0038] Before spraying the vegetation concrete 3, an antifouling and degradable nanofiber membrane is set on the bamboo tube 2, and the antifouling and degradable nanofiber membrane is removed after the vegetation concrete 3 is formed. The antifouling and degradable nanofiber membrane is a bag-like structure, the inner diameter of the bag-like structure is 25 cm, the length of the bag-like structure is 40 cm, and the mouth of the bag-like structure is fixed with a bio-based degradable tape. It can prevent the vegetation concrete 3 from entering the bamboo tube 2 during spraying, blocking the bamboo tube 2, and affecting the water retention and water collection function of the bamboo tube 2.

[0039] Application Examples

[0040] A mine is located in an area with heavy rainfall in the rainy season, with rainfall often exceeding 25 mm within 12 hours. In this environment, the mine slope faces serious water and soil erosion and loss problems. A mine slope vegetation concrete bamboo pipe water retention and water collection system provided by the present invention is adopted in the mine slope. The specific implementation method is as follows:

[0041] (1) Select a bamboo tube 2 for stagnant water collection, select bamboo freshly picked at 6 months old, and make a bamboo tube 2 with a length of 30 cm, an inner diameter of 10 cm, and a wall thickness of 4 mm;

[0042] (2) The bamboo tube 2 is made into the required structure. The bamboo tube 2 prepared in step (1) is split into an arc shape with a cross section of 2 / 3, and one end of the bamboo tube 2 is cut into a flat opening 5, and the other end of the bamboo tube 2 is cut into an inclined opening 6, so that the angle of the inclined opening 6 is ≤30°, and the length of the inclined opening 6 is 4 cm. Then, tube holes 7 are arranged at intervals of 1 cm on one side of the bamboo tube 2 behind the inclined surface, and the diameter of the tube holes 7 is 0.5 cm.

[0043] (3) Mechanical drilling is performed on the slope body 1. The diameter of the drill hole is 10 cm, the depth of the drill hole is 8 cm, the spacing between two adjacent drill holes is 0.5 m, and the angle between the drill hole axis and the tangent line of the slope body 1 is 45°.

[0044] (4) After drilling, the bio-based resin containing seeds is poured into the drilled hole, and one end of the inclined opening 6 of the bamboo tube 2 is quickly inserted to the bottom to ensure that it is fixed.

[0045] (6) After the bamboo tube 2 is inserted, an antifouling and degradable nanofiber membrane is put on the bamboo tube 2. The antifouling and degradable nanofiber membrane is a bag-like structure with an inner diameter of 10 cm and a length of 30 cm. The mouth of the bag-like structure is fixed with a bio-based degradable tape to prevent the bio-based resin inside and at the bottom of the bamboo tube 2 from being contaminated and maintain ecological safety.

[0046] (7) The hanging net 4 is firmly fixed to the surface of the slope body 1 by using a carbon fiber rope through the holes of the bamboo tube 2 to ensure that the hanging net 4 fits the slope surface without loosening.

[0047] (8) The vegetated concrete 3 is sprayed onto the hanging net 4 using a layered spraying process. The thickness of the bottom layer of the vegetated concrete 3 is controlled to be 4 cm, and the thickness of the top layer of the vegetated concrete 3 is controlled to be 5 cm. Biosurfactants are sprayed between the two layers to promote plant growth. After the vegetated concrete is formed, the antifouling and degradable nanofiber membrane is removed.

[0048] (9) Observation and effect evaluation: After 12 consecutive hours of rainfall reaching 25 mm, the system effectively collected a large amount of rainwater and reduced soil erosion on the slope. After a period of observation, it was found that the vegetation coverage rate increased from the original 15% to 75%, and the slope soil loss rate decreased by about 75%. More than 90% of the vegetation survived successfully and gradually formed a stable ecosystem.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A mine slope vegetation concrete bamboo pipe water retention and collection system, characterized by: It includes several drill holes set on the slope body, bio-based resin containing seeds is poured at the bottom of the drill holes, bamboo pipes for water retention and collection are inserted in the drill holes, and a hanging net is also set on the surface of the slope body, which is fixedly connected to the bamboo pipe by a carbon fiber rope.

2. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 1 is characterized by: The bamboo tube is made of freshly picked bamboos over 5 months old, with an inner diameter of 5-20 cm, a length of 20-40 cm, and a wall thickness of 3-6 mm.

3. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 1 is characterized by: The cross section of the bamboo tube is a 2 / 3 arc shape, the interior of the bamboo tube is a hollow structure, one end of the bamboo tube is a flat opening, and the other end of the bamboo tube is an inclined opening, the angle of the inclined opening is ≤30°, and the length of the inclined opening is 4 cm.

4. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 1 is characterized by: One side of the bamboo tube is provided with a plurality of tube holes with even intervals, the interval between two adjacent tube holes is 1-2 cm, and the size of the tube holes is 0.2-0.5 cm.

5. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 1 is characterized by: The diameter of the borehole is 5-20cm, the depth of the borehole is 5-10cm, the spacing between two adjacent boreholes is 0.5m-1m, and the angle between the axis of the borehole and the tangent of the slope body is 30-60°.

6. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 4 is characterized by: The hanging net is fitted to the surface of the slope, and the carbon fiber rope is connected to the holes of the bamboo tube.

7. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 1 is characterized by: The hanging net is sprayed with vegetation concrete by using a layered spraying process. The thickness of the bottom layer of vegetation concrete is 3-5 cm, and the thickness of the top layer of vegetation concrete is 4-6 cm. Biosurfactants are sprayed between the bottom layer of vegetation concrete and the top layer of vegetation concrete.

8. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 7 is characterized by: Before spraying the vegetation concrete, an antifouling and degradable nanofiber membrane is sheathed on the bamboo tube, and the antifouling and degradable nanofiber membrane is removed after the vegetation concrete is formed.

9. The mine slope vegetation concrete bamboo pipe water retention and collection system according to claim 8, characterized in that: The antifouling and degradable nanofiber membrane is a bag-like structure with an inner diameter of 6-25 cm and a length of 20-40 cm. The mouth of the bag-like structure is fixed with a bio-based degradable tape.

10. An application of the mine slope vegetation concrete bamboo pipe water retention and collection system as claimed in any one of claims 1 to 9, characterized in that: It is used to repair vegetation concrete on mine slopes in areas where rainfall is ≥25.0 mm within 12 hours or ≥50 mm within 24 hours.

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