CN111869469A

CN111869469A - Novel side slope afforestation is with planting living net

Info

Publication number: CN111869469A
Application number: CN202010890221.6A
Authority: CN
Inventors: 谢泉; 李文志
Original assignee: Hunan Value Creating Eco Garden Co ltd
Current assignee: Hunan Value Creating Eco Garden Co ltd
Priority date: 2020-08-29
Filing date: 2020-08-29
Publication date: 2020-11-03

Abstract

The invention discloses a novel vegetation net for slope greening, which comprises a corrugated net, reinforcing ribs, vegetation holes, mud storage holes and a middle platform. The plant-growing holes are uniformly distributed on the plant-growing net, the reinforcing ribs are vertically arranged in the middle of the corrugated net at equal intervals, the sludge storage holes are distributed in the concave part of each corrugated groove, and the middle platform is transversely connected with the two corrugated nets. The invention ensures that the matrix can be uniformly adsorbed on the plant growth net installed on the vertical steep stone side slope, provides enough growth matrix for plant growth and germination, is beneficial to the formation of a large amount of side slope vegetation recovery of bare slope surfaces due to the implementation of construction projects such as highway, railway traffic, water conservancy, mine, electric power and the like, prevents water and soil loss and landslide, purifies air and beautifies the environment.

Description

Novel side slope afforestation is with planting living net

Technical Field

The invention relates to the field of slope foreign soil spray-seeding ecological restoration, in particular to a novel plant-growing net for slope greening.

Background

With the rapid development of economic society, a large number of bare slopes are formed by the basic construction of China due to the implementation of projects such as traffic, water conservancy, mines, electric power, urban construction and the like, the ecological environment landscape is influenced, the hidden danger of geological disasters exists, and therefore, slope greening starts to be vigorously developed in many places.

The slope greening is a slope greening process which utilizes spray seeding equipment to spray soil dressing base materials mixed in a certain proportion on a slope surface hung with wire netting on a soil slope surface or a steep rock surface or a rock soil surface of the slope surface. PVC-plated or galvanized diamond-shaped wire meshes with meshes ranging from 5 x 5cm to 8 x 8cm are usually selected to be laid on the slope surface and anchored by threaded rods. The slope top is laid from top to bottom after being fixed. Some stones are vertical and steep on the slope surface, and the mud sprayed to the slope surface through the spray seeding machine can not be adsorbed to the slope surface basically and can completely slide to the bottom of the slope. In order to solve the problem, the common method is to install straws and wood boards in the middle of the wire netting, so that slurry can be left on the slope surface, and a substrate layer is arranged only when plant seeds grow and germinate, so that moisture and nutrition are provided for the plant seeds. However, the traditional method consumes a great amount of manpower and material resources and has low efficiency. The management and control is not good, and the slope surface is soilless after spray seeding, and the slope surface can not be re-greened.

Disclosure of Invention

Based on the current situation, a plant growing net is developed, and similar products do not exist in the market at present. The invention aims to provide a novel side slope greening vegetation net, which can enable a matrix sprayed by a vehicle-mounted spray seeder to be adsorbed and stopped on the vegetation net arranged on a steep slope. Provides a good growing environment for plant seeds, is favorable for vegetation recovery, and solves the problems of low efficiency, high labor cost and poor soil fixation effect of high and steep slopes in the traditional installation of wood boards and straws.

In order to achieve the purpose, the invention provides the following technical scheme: a novel plant-growing net for slope greening comprises a corrugated net, reinforcing ribs and a middle platform, wherein the reinforcing ribs are arranged at the left end and the right end of the corrugated net; the upper direction and the lower direction of the wave-shaped net are connected with the middle platform; the wave-shaped net and the middle platform are provided with plant growing holes; the corrugated net is provided with a mud storage hole.

Preferably, the height of the wave-shaped net is 3cm-20cm, and the distance between two wave crests is 4cm-30 cm.

Furthermore, the plant growing holes are uniformly distributed on the wave-shaped net and the middle platform.

Preferably, the diameter of the plant growing hole is 2mm-10mm, the distance between the two holes is 5mm-25mm, and the density of the holes is 1800 and 4000 per square meter.

Preferably, the mud storage holes are distributed at the grooves of the corrugated net at equal intervals, the overall dimension of the mud storage holes is 1cm-6cm, and the hole density is 60-300 per square meter.

Preferably, the wave-shaped net is one or more of wave-shaped, saw-tooth-shaped, triangular and crescent-shaped structural shapes consisting of straight lines + circular arcs, curves + straight lines, draw circles, ellipses, parabolas, hyperbolas, logarithmic curves, exponential curves, sine curves, cosine curves, left-hand curves, and left-hand curves.

Further, another technical scheme adopted by the invention is a manufacturing method of a novel plant-growing net for slope greening, which is characterized by comprising the following steps:

a. preparing a plastic coiled material for manufacturing a vegetation net for slope greening, and heating an upper die and a lower die on pressing equipment at the temperature of 80-240 ℃;

b. placing the prepared plastic coiled material on a lower die, pressing down an upper die, and simultaneously carrying out negative pressure plastic suction molding through air holes in the die;

c. cooling, forming and cutting to obtain the finished product.

Preferably, the material of the plastic coiled material is selected from one or more of polypropylene (PP), Polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), Acrylonitrile Butadiene Styrene (ABS), polylactic acid (PLA), starch-based plastics, and plant fiber modified plastics.

Further, a novel construction method of the plant net for slope greening is characterized by comprising the following steps:

artificial slope clearing → slope anchor rod construction → side slope hanging greening plant growing net → matrix spray-seeding → seed spray-seeding → maintenance.

Further, the plant net for slope greening is applied to slope ecological restoration.

Further, the plant net for slope greening is applied to urban vertical greening.

Compared with the prior art, the invention has the following beneficial effects:

1. the plant net for slope greening is convenient to install and transport, products are laid in a rolling mode from top to bottom during construction, and the anchor rods are fixed.

2. The vegetation net for slope greening can enable the slurry to be uniformly adsorbed on the vegetation net on the slope surface, and the designed thickness of the spray-seeding slurry is ensured to be 5-20cm, and the thickness of the slurry in common spray-seeding operation is 5-8 cm.

3. Compared with the common cork wood straw method, the vegetation net for slope greening of the invention can improve the construction efficiency by 5-8 times and save the labor cost.

4. The plant net for slope greening is paved on a steep slope surface by adopting different specifications, so that soil is better adsorbed on the plant net on the slope surface, mud falling is reduced, and the operation efficiency of vehicle-mounted spray seeding can be obviously improved by 20-30%.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is an enlarged schematic view of a partial three-dimensional structure of the present invention.

Wherein the figures include the following reference numerals:

the device comprises reinforcing ribs (1), a corrugated net (2), plant growing holes (3), a middle platform (4) and a mud storage hole (5).

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper" and "lower" directions, left "and" right "ends, etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "distributed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; they may be mechanically coupled, directly coupled, indirectly coupled through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As mentioned in the technical background, in the current net hanging spray seeding, the slurry sprayed to the slope surface by the spray seeding machine can not be adsorbed to the slope surface basically, and all the slurry can slide to the bottom of the slope. In order to solve the problem, the common method is to install straws and wood boards in the middle of the wire netting, so that slurry can be left on the slope surface, and a substrate layer is arranged only when plant seeds grow and germinate, so that moisture and nutrition are provided for the plant seeds. However, the traditional method consumes a great amount of manpower and material resources and has low efficiency. The management and control is not good, and the slope surface is soilless after spray seeding, and the slope surface can not be re-greened. In order to improve the situation, in an exemplary embodiment of the present application, a novel plant-growing net for slope greening is provided, as shown in fig. 1, including a corrugated net 2, reinforcing ribs 1 and a middle platform 4, wherein the reinforcing ribs 1 are provided at the left and right ends of the corrugated net 2; the upper direction and the lower direction of the wave-shaped net 2 are connected with a middle platform 4; the wave-shaped net 2 and the middle platform 4 are provided with plant growing holes 3; the wave-shaped net 2 is provided with a mud storage hole 5.

The plant-growing net for slope greening can be used for large-scale automatic batch production in factories, and has the advantages of no toxic or side effect on products, low price and practicability.

Preferably, the plant-growing net for slope greening is characterized in that the reinforcing ribs 1 are vertically distributed on two sides of the wave-shaped net 2 to bear the gravity and the pulling force in the vertical direction, and the middle platforms 4 are uniformly distributed in the vertical direction of the wave-shaped net 2, so that workers can conveniently perform construction operation on steep slopes.

Preferably, the height of the wave-shaped net 2 is 3cm-20cm, and the distance between two wave crests is 4cm-30 cm. The method is selected according to the construction environment and the greening effect, the construction environment side slope is steep, and when the plant-growing net for slope greening with higher strength is needed, the selected plant-growing net needs to be thicker, lower in height and shorter in distance between two wave crests. In the aspect of greening effect, if the greening effect is better, more substrates need to be retained, so that the height of the wave-shaped net 2 is selected to be larger, and the distance between two wave crests is smaller. It should be noted that, the larger the distance between the two peaks is, the lower the cost is, while satisfying the greening requirements.

Preferably, the wave-shaped net 2 is in a wave-shaped, zigzag, triangular or crescent structure shape consisting of a straight line + arc, a curve + straight line, a circle, an ellipse, a parabola, a hyperbola, a logarithmic curve, an exponential curve, a sine curve, a cosine curve, a left-hand cutting curve, a right-hand cutting curve and a left-hand cutting curve. It should be noted that the structure of the corrugated net 2 may be other structural shapes based on the designed mechanical properties and the function of retaining the matrix.

As shown in fig. 1 and fig. 3, preferably, the plant growing holes 3 are uniformly distributed on the wave-shaped net 2 and the middle platform 4, the diameter of the plant growing holes 3 is 2mm-10mm, the distance between the two holes is 5mm-25mm, and the hole density is 1800 ion 4000/sq m. The plant-growing net for slope greening is characterized in that the plant-growing holes 3 densely distributed on the net can be permeable and permeable, so that root systems of plants can be favorably pricked into the slope surface to form a whole, rain erosion is resisted, and the slope surface is stabilized.

It should be noted that, as shown in fig. 3, the plant growth holes 3 are circular or similar to circular, and may be geometric figures with other shapes, so as to satisfy the requirements of convenient demoulding during the manufacture of the plant growth net for slope greening, without affecting the strength of the plant growth net, and have the characteristics of good water permeability, air permeability and contribution to the growth of plant roots.

As shown in fig. 1 and 3, preferably, the mud storage holes 5 are equidistantly and alternately distributed at the grooves of the corrugated net 2, the overall dimension of the mud storage holes 5 is 1cm-6cm, and the hole density is 60-300 holes/square meter. Within the range, the larger the overall dimension of the mud storage holes 5 is, the larger the hole density is, the more the storage matrix is, which is beneficial to the growth of plants, but the corresponding mechanical property is reduced, otherwise, the effect is just opposite. The side slope greening vegetation net has the cavity with the physical structure for storing the slurry, the slurry can be well adsorbed on the vegetation net, and the designed spray-seeding thickness can be guaranteed according to the thickness of the vegetation net.

It should be noted that, as shown in fig. 3, the geometric shape of the mud storage hole is an ellipse, or a geometric figure with other shapes, which can satisfy the requirements of convenient demoulding when the vegetation net for slope greening is manufactured, does not affect the strength of the vegetation net, and has the characteristics of good water permeability, air permeability, substrate storage and contribution to the growth of plant roots.

In this embodiment, a method for manufacturing a novel plant net for slope greening is provided, which is characterized in that the manufacturing method includes:

c. cooling, forming and cutting to obtain the finished product.

The plastic coiled material is made of one or more of polypropylene (PP), Polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), acrylonitrile-butadiene-styrene (ABS), polylactic acid (PLA), starch-based plastics and plant fiber modified plastics. The degradable material is preferably selected, and the method is environment-friendly.

In the embodiment, the construction method of the novel plant-growing net for slope greening comprises the steps of artificial slope clearing → slope anchor rod construction → plant-growing net for slope greening → matrix spray-seeding → seed spray-seeding → maintenance.

From the above description, the vegetation net for slope greening has high construction efficiency, does not need to be like the traditional construction mode, cleans a slope surface, hangs nets, anchors are used for fixing, battens are plugged on the wire netting, straws are plugged between the battens of the wire netting, and the spray seeding is complex in process, long in construction period, high in labor cost and difficult in quality control. The construction process of the plant net is to clean the slope, lay the plant net, fix the anchor rod and spray-seeding. The construction speed is fast, and is efficient, and spray-seeding thickness quality is guaranteed, reduces the cost of labor.

The advantageous effects of the present application will be further described with reference to specific examples.

It should be noted that in the following examples and comparative examples, the soil sieved except for the specific examples was unified into Chen local soil of Hunan province sieved through a 10-mesh net, the same amount of water was added, 5kg of slurry was attached to the media of the examples and comparative examples in the same manner, and the attaching amount, thickness and dropping amount of the comparative slurry were as shown in Table 1.

Other experimental conditions, except for the specific examples, other examples and comparative examples were conducted in a laboratory facility.

The experiment conditions which are not noted are general experiment conditions, and the experiment environment is a unified experiment environment.

Example 1, a vegetation net for slope greening, having a thickness of 1 mm; the height of the wave-shaped net 2 is 50mm, and the distance between two wave crests is 85 mm. The diameter of the plant growing hole 3 is 6mm, and the distance between the two holes is 10 mm; the mud storage holes are oval, the major axis is 40mm, the minor axis is 20mm, and the hole density is 250 per square meter.

Comparative example 1, a diamond galvanized wire mesh with 5 x 5cm mesh was used.

Comparative example 2, a diamond galvanized wire net with 5X 5cm mesh was selected, and rice straw with a diameter of about 4cm was inserted into the place 10cm apart from the top and bottom.

TABLE 1

Performance index	Thickness mm	Drop amount g	Adhesion amount g
				Example 1	50	514	4486
Comparative example 1	/	4744	256
				Comparative example 2	32	2630	2370

Note: in the comparative experiment, except for example 1, the thickness of the comparative example is not uniform, and the average thickness is taken as the standard; the above test is obtained from the test 5-10 minutes after the mud is attached.

As can be seen from table 1, example 1 can retain the soil well, and the thickness depends on the height of the corrugated net 2; comparative example 1 only a small amount of mud was attached to the diamond-shaped galvanized iron wire mesh, and the others were dropped; comparative example 2, the thickness depends on the thickness of the straw plugged, which is capable of retaining part of the soil.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The vegetation net for greening the side slope provided in example 1 was used to perform a vegetation recovery test on a mine in southern summerheat 4.2020.

The prefecture of Nanzhao county, south-Yang city of Henan province, located in the southwest of Henan province, belongs to subtropical monsoon climate, is long in winter and summer, short in spring and autumn, and is well-known in four seasons. The average annual temperature is 14.8 ℃. The average number of sunshine for many years is 1850.5 hours. Average frost-free period of the year 219 days. The average annual precipitation is 868.8 mm, the precipitation is mostly concentrated in summer, and the rain and heat are in the same period. The pH value of the local soil is 6.94 through testing, the salinity of the local soil is 1.86ppt and is less than 1.2ppt which is specified in the urban landscaping engineering construction and acceptance code, and the local soil belongs to saline soil.

Slope surface condition: the mine for ecological restoration is a rock slope, the slope gradient is greater than 70 degrees, and more than 60% of the slope reaches 90 degrees. The height of the test slope surface is about 30 meters, and the area of the test slope surface is about 100 square meters.

The process flow comprises the following steps: artificial slope clearing → slope anchor rod construction → side slope hanging greening plant growing net → matrix spray-seeding → seed spray-seeding → maintenance.

1. Firstly, the pumice, sundries, trees and the like on the slope surface, stone or soil slope surface, which needs to be greened, are cleaned.

2. Laying the plant-growing nets, overlapping the plant-growing nets in the left-right direction by 5-10cm from left to right and from top to bottom, and tightly binding the plant-growing nets with iron wires.

3. And (3) drilling an anchor rod for fixing the vegetation net, wherein the anchor rod is made of deformed steel with the diameter of 10-16mm, the slope surface of the stone needs to be drilled with a corresponding bottom hole by an electric hammer, then the steel bar is anchored, and the anchoring position is at the position of the mud storage hole (5).

4. And carrying out vehicle-mounted spray-seeding operation, uniformly stirring water, sieved yellow soil, organic fertilizer, plant seeds, a slurry additive and the like, and spraying the mixture onto the laid plant growth net, wherein the slurry can be well adsorbed on the plant growth net through the wavy structure and the sludge storage holes of the plant growth net, so that a very good germination and growth environment is provided for the plant seeds. The slurry uniformly covers the plant-growing net, and the spray-seeding operation is completed.

5. Watering, fertilizing and maintaining.

The water retention and anti-scouring effects of the polymer spray material need to be observed, so that the step of covering the non-woven fabric is eliminated.

And (5) maintenance: and timely performing maintenance measures such as watering, pest control, topdressing, reseeding and the like in the seedling stage and the later stage. The maintenance times are reduced because of the continuous rainy weather in the south after the test.

The recovery effect is that after 15 days of spray sowing, the seedlings are relatively regular, the height of the plant is about 10cm, the coverage rate reaches over 90 percent, and the arbor and shrub grow well. And the continuous rain does not cause the soil on the slope to peel off and fall off, so that the expected target is achieved.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the construction efficiency is high, the process is simple, the operation is easy, and the cost performance is high; good environmental protection performance, and no influence on environment and plant germination and growth. Excellent air permeability and water permeability, and the internal structure of the plant-growing air-permeable cover can strengthen the respiration of plants and is beneficial to the growth of the plants.

By adopting the technical scheme of the invention, the greening effects of plant community localization, succession naturalization and plant landscape unification with the surrounding environment are rapidly realized in the slope section and urban vertical greening, the problems of water and soil loss and the like are effectively solved, the stability of the slope and the vertical greening area is improved, the ecological environment is ecologically restored, and the application prospect is wide.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A novel plant-growing net for slope greening comprises a wave-shaped net (2), reinforcing ribs (1) and a middle platform (4), and is characterized in that the reinforcing ribs (1) are arranged at the left end and the right end of the wave-shaped net (2); the upper direction and the lower direction of the wave-shaped net (2) are connected with the middle platform (4); the wave-shaped net (2) and the middle platform (4) are provided with plant growing holes (3); and a mud storage hole (5) is formed in the wave-shaped net (2).

2. The novel plant-growing net for slope greening according to claim 1, characterized in that: the height of the wave net (2) is 3cm-20cm, and the distance between two wave crests is 4cm-30 cm.

3. The novel plant-growing net for slope greening according to claim 1, characterized in that: the plant growth holes (3) are uniformly distributed on the wave-shaped net (2) and the middle platform (4), the diameter of the plant growth holes (3) is 2mm-10mm, the distance between the two holes is 5mm-25mm, and the hole density is 1800 minus 4000 pieces/square meter.

4. The novel plant-growing net for slope greening according to claim 1, characterized in that: the mud storage holes (5) are distributed at the grooves of the corrugated net (2) at equal intervals, the overall dimension of the mud storage holes (5) is 1cm-6cm, and the hole density is 60-300 per square meter.

5. The novel plant-growing net for slope greening according to claim 1, characterized in that: the wave net (2) is one or more of wave, saw tooth, triangle and crescent structural shapes consisting of straight lines, circular arcs, curves, straight lines, drawing circles, ellipses, parabolas, hyperbolas, logarithmic curves, exponential curves, sine curves, cosine curves, sine curves and cosine curves, and cosine curves.

6. A novel method for manufacturing a vegetation net for slope greening is characterized by comprising the following steps:

preparing a plastic coiled material for manufacturing a vegetation net for slope greening, and heating an upper die and a lower die on pressing equipment at the temperature of 80-240 ℃;

placing the prepared plastic coiled material on a lower die, pressing down an upper die, and simultaneously carrying out negative pressure plastic suction molding through air holes in the die;

cooling, forming and cutting to obtain the finished product.

7. The method for manufacturing a vegetation net for slope greening according to claim 6, wherein the plastic coiled material is selected from one or more of polypropylene (PP), Polyethylene (PE), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), acrylonitrile-butadiene-styrene (ABS), polylactic acid (PLA), starch-based plastics and plant fiber modified plastics.

8. A novel construction method of a vegetation net for slope greening is characterized by comprising the following steps:

9. The use of the vegetation net for slope greening according to claims 1 to 8 in slope ecological restoration.

10. Use of the vegetation net for slope greening according to claims 1 to 8 in urban vertical greening.