CN112075249A - Slope greening planting V-shaped groove and construction method thereof - Google Patents

Abstract

The invention discloses a slope planting V-shaped groove and a construction method thereof, in particular to a slope planting V-shaped groove and a construction method thereof, wherein the slope surface of a rock slope is provided with reinforcing steel bars arranged in the horizontal direction, and the reinforcing steel bars and the rock slope surface form a V-shaped structure; 2-3 rows of transverse reinforcing ribs are uniformly distributed on the reinforcing steel bars; concave-convex net sheets are arranged on the inner sides of the reinforcing steel bars and the transverse reinforcing ribs to form V-shaped grooves; filling backfill matrixes in the V-shaped grooves; planting vines, arbors, shrubs and herbaceous plants on the backfilled substrate; a dripping pipe is arranged on the V-shaped groove for slope planting. The method is simple to operate, and solves the problems that the slope greening is easy to slip off in the spray seeding process, so that the greening fails and the like.

Description

Slope greening planting V-shaped groove and construction method thereof

Technical Field

The invention relates to the technical field of environmental management, in particular to a slope greening planting V-shaped groove and a construction method thereof.

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. The existing V-shaped complex green platform made of reinforced concrete is complex in construction and high in cost.

Disclosure of Invention

The invention aims to solve the technical problem that an environment suitable for the growth of trees, shrubs and vines is established on a high and steep slope, and the foreign soil spray-seeding process is not suitable for the growth of trees and shrubs because the spray-seeding matrix is easy to slip off and thin. Although a V-shaped platform made of reinforced concrete is available, the problems of high manufacturing cost, mechanical construction, high construction difficulty and the like are solved by providing a slope greening planting V-shaped groove and a construction method thereof.

In order to solve the problems in the background art, the invention provides the following technical scheme:

the utility model provides a side slope planting technique V type groove which characterized in that: the slope surface of the rock slope is provided with reinforcing steel bars arranged in the horizontal direction, and the reinforcing steel bars and the rock slope surface form a V-shaped structure; 2-3 rows of transverse reinforcing ribs are uniformly distributed on the reinforcing steel bars; concave-convex net sheets are arranged on the inner sides of the reinforcing steel bars and the transverse reinforcing ribs to form V-shaped grooves; filling backfill matrixes in the V-shaped grooves; planting vines, arbors, shrubs and herbaceous plants on the backfilled substrate; a dripping pipe is arranged on the V-shaped groove for slope planting.

Preferably, the concave-convex net sheet (30) is wave-shaped; the material of the concave-convex net sheet 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.

Furthermore, the concave-convex net sheet is provided with a boss, a concave table, a water filtering hole and a filtering device.

Preferably, the steel bar is a threaded steel with the diameter of more than or equal to 10 mm; the steel bars and the rock slope form an included angle of 30-80 degrees; the depth of the steel bar inserted into the rock slope is more than 10 cm; the distance between the steel bars is 20cm-50 cm; the transverse reinforcing ribs are hot-dip galvanized steel wires with the diameter larger than 1.5 mm.

It should be noted that, in the present invention, other steel materials having the same strength as the threaded steel material may be used instead of the threaded steel material, and other steel wires having the required strength may be used instead of the galvanized steel wire.

Preferably, the thickness of the material of the concave-convex net piece is 0.1mm-1 mm; the height of the boss and the height of the concave platform are 10mm-30 mm; the boss faces the rock slope; the water filtering holes are formed in the concave table at intervals of 10cm-100 cm; the filter device is arranged on the water filtering hole; the filtering device is composed of one or more of gravel, gauze and non-woven fabrics.

It should be noted that the convex-concave net piece is provided with the bosses and the concave platforms so as to better increase the contact surface of the convex-concave net piece and soil and effectively reduce the loss of the backfilling matrix caused by rainstorm. The concave station is provided with the number of the water filtering holes according to the local climate, so that redundant water can be effectively filtered out in rainstorm, the loss of backfilling matrix is prevented, and the V-shaped groove is protected.

Further, as a preferable construction scheme of the present invention, the method includes the following steps:

a. cleaning a rock slope, cleaning broken stones on the slope and flattening the slope;

b. drilling holes with the depth of more than 10cm by using a drill bit with the depth of more than or equal to 10mm and forming an included angle of 30-80 degrees with the rock slope surface;

c. anchoring the steel bars in the drill holes according to the above, wherein the threaded steel with the diameter matched with that of the drill holes is exposed by 40-100 cm;

d. transversely reinforcing the steel bars by using transverse reinforcing ribs, wherein 2-3 reinforcing ribs are distributed at equal intervals;

e. binding and fixing the concave-convex net sheet on the inner side of the steel bar by using a steel wire, and arranging a filtering device at the position of the water filtering hole;

f. filling the backfill substrate into the V-shaped groove, wherein the thickness of the backfill substrate is more than 50 cm;

g. planting vines, arbor plants, shrub plants and herbaceous plants, wherein the vines are planted in rows respectively on the inner side and the outer side of the V-shaped groove;

h. the weeping pipe (70) is arranged on the V-shaped groove, and weeping holes are arranged at intervals of 20-100 cm to ensure the moisture required by plant growth.

Preferably, the vertical distance between the V-shaped grooves is 3-15 m.

Preferably, the backfilling matrix comprises 40-90 parts by weight of soil, 5-20 parts by weight of decomposed plant fiber, 0-0.2 part by weight of water-retaining agent, 1-5 parts by weight of perlite, 0.5-2 parts by weight of compound fertilizer, 0-2 parts by weight of controlled release fertilizer and 0-10 parts by weight of peat soil.

It should be noted that the above-mentioned species of vines, arbors, shrubs and herbs are selected according to the local environment, and local plants are preferably selected. The drip pipes are horizontally paved along the V-shaped groove, and one drip hole is arranged at intervals of 20-100 cm according to the local environment.

According to the slope planting V-shaped groove and the construction method thereof, the environment suitable for the growth of trees, shrubs and vines is established on the high and steep slope, and the problems that the spraying seeding matrix is easy to slip off in the foreign soil spraying seeding process, the matrix is thinned, and the tree and shrub growing is not suitable are solved. The V-shaped platform made of the existing reinforced concrete is replaced, the problems of low manufacturing cost, no need of special mechanical construction, small construction difficulty and the like are solved, and the V-shaped platform has good economic benefit.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail with reference to examples.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural diagram of the present invention;

FIG. 2 shows a schematic front view of the present invention;

FIG. 3 shows a schematic partial front view of a concavo-convex mesh in accordance with the present invention;

FIG. 4 shows a schematic partial left view of a concavo-convex mesh in accordance with the present invention;

wherein the figures include the following reference numerals:

11. a vine plant; 12. a tree plant; 13. a shrub plant; 14. a herbaceous plant; 20. backfilling the substrate; 30. a concave-convex net sheet; 40. reinforcing steel bars; 50. transverse reinforcing ribs; 60. a rock slope; 70. a drip pipe; 31. a boss; 32. a concave platform; 33. water filtering holes; 34. and (4) a filtering device.

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.

As shown in fig. 1, the slope planting V-shaped groove of the invention comprises a rock slope 60, a reinforcing steel bar 40 arranged in the horizontal direction is arranged on the slope surface of the rock slope 60, and the reinforcing steel bar 40 and the rock slope 60 form a V-shaped structure; 2-3 rows of transverse reinforcing ribs 50 are uniformly distributed on the reinforcing steel bars 40; concave-convex net sheets 30 are arranged on the inner sides of the reinforcing steel bars 40 and the transverse reinforcing ribs 50 to form V-shaped grooves; the V-shaped groove is filled with a backfill substrate 20; planting vines 11, arbors 12, shrubs 13 and herbaceous plants 14 on the backfilled substrate 20; a drip pipe 70 is arranged on the V-shaped groove for slope planting.

The rock side slope 60 is a steep slope with a slope larger than 60 degrees, and the steeper the slope, the more obvious the effect of the V-shaped groove is.

As shown in fig. 1 and 2, the reinforcing bars 40 are commercially available threaded steel materials, and preferably the diameter of the reinforcing bars 40 is 10mm or more. If the space between the reinforcing bars 40 is large and the local natural environment is severe, a thicker thread steel is required to be selected so as to be able to withstand a larger force. The angle between the reinforcing steel bar 40 and the rock slope 60 is 30-80 degrees, the angle is about 60 degrees in common construction design, and if the diameter of the reinforcing steel bar 40 is thinner, the angle should be smaller so as to reduce the force in the direction perpendicular to the reinforcing steel bar 40. The depth of the reinforcing steel bar 40 inserted into the rock slope 60 is more than 10cm, the reinforcing steel bar 40 and the rock slope 60 must be firmly anchored, and the depth must be more than 10cm for stability. The distance between the steel bars 40 is 20cm-50cm, the steel bars 40 are selected according to the diameter of the steel bars 40 and the local rainwater environment, the distance needs to be smaller if the diameter of the steel bars 40 is smaller, otherwise, the distance can be larger, the bearing force is larger in the environment with more rainwater, and the distance between the steel bars should be larger. Of course, the reinforcing bars 40 may be made of other materials under the condition that the performance is satisfied.

The transverse reinforcing ribs 50 are commercially available hot-dip galvanized steel wires, preferably hot-dip galvanized steel wires with the diameter larger than 1.5mm, and ensure that the steel wires have certain strength. The hot galvanizing can well protect the steel wire from being corroded and rusted by water vapor. The transverse reinforcing ribs 50 are transversely reinforced on the reinforcing steel bars 40, and are distributed at 2-3 equal intervals, so that the effect of supporting the concave-convex net piece 30 is mainly achieved.

As shown in fig. 3 and 4, the embossed mesh sheet 30 is wavy; the material of the concave-convex net sheet 30 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; the concave-convex net sheet 30 is provided with a boss 31, a concave table 32, a water filtering hole 33 and a filtering device 34. The thickness of the material of the concave-convex net sheet 30 is 0.1mm-1 mm. The height of the boss 31 and the height of the concave table 32 are 10mm-30 mm. The boss 31 faces the rock slope 60. The water filtering holes 33 are formed in the concave table 32 at intervals of 10cm-100 cm; the water filtering hole 33 is provided with the filtering device 34; the filtering device 34 is composed of one or more of gravel, gauze and non-woven fabrics. The selection of the material and the thickness of the concave-convex net sheet 30 needs to meet the requirements that the transverse and longitudinal fracture strength is not less than 6KN/M and not less than 400 g/square meter. The wavy design helps to increase the contact of the embossing web 30 with the backfill matrix 20. The arrangement of the water filtering holes 33 is designed according to the local construction environment, and more water filtering holes 33 need to be designed if the rainfall is large.

It should be noted that the vertical distance between the V-shaped grooves is 3-15m, and if the construction is combined with other greening methods, such as soil dressing and spraying, the vertical distance between the V-shaped grooves can be larger.

As shown in fig. 1, the construction is completed according to the following steps:

firstly, cleaning the rock slope 60, cleaning the slope broken stones and leveling the slope.

And secondly, drilling holes with the depth of more than 10cm by using a drill bit with the depth of more than or equal to 10mm and forming an included angle of 30-80 degrees with the rock slope surface 60.

And thirdly, anchoring the steel bar 40 in the drilled hole, wherein the diameter of the threaded steel matched with that of the drilled hole is exposed by 40-100 cm.

And fourthly, transversely reinforcing the reinforcing steel bars 40 by using the transverse reinforcing ribs 50, wherein 2-3 reinforcing steel bars are distributed at equal intervals.

Fifthly, the concave-convex net sheet 30 is bound and fixed on the inner side of the reinforcing steel bar 50 by using steel wires, and the filtering device 34 is arranged at the water filtering hole 33.

And sixthly, filling the backfill substrate 20 into the V-shaped groove, wherein the thickness of the backfill substrate 20 is more than 50 cm. The backfill matrix comprises 40-90 parts by weight of soil, 5-20 parts by weight of decomposed plant fiber, 0-0.2 part by weight of water-retaining agent, 1-5 parts by weight of perlite, 0.5-2 parts by weight of compound fertilizer, 0-2 parts by weight of controlled release fertilizer and 0-10 parts by weight of peat soil.

Seventhly, planting the vine 11, the arbor 12, the shrub 13 and the herbaceous plant 14, wherein the vine 11 is planted in various rows respectively on the inner side and the outer side of the V-shaped groove, and the plant variety mainly comprises local plants.

And eighthly, in order to maintain and avoid manual irrigation, arranging the weeping pipes 70 on the V-shaped grooves, and arranging weeping holes every 20-100 cm to ensure the moisture required by plant growth.

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

In the exemplary embodiment, the rebar 40 is a 12mm diameter threaded steel. The transverse reinforcing ribs 50 are hot-dip galvanized steel wires with the diameter of 2 mm. The concave-convex net sheet 30 is made of polyethylene terephthalate (PET), the thickness of the concave-convex net sheet 30 is 0.2mm, and the heights of the boss 31 and the concave table 32 are 15 mm. Water filtering holes 33 are arranged in the concave table 32 at intervals of 20 cm. The filter device 34 is a nonwoven fabric.

By adopting the embodiment, ecological restoration is carried out in Nanhuxin qi calcite mine in 2020 and 5 months, and construction is carried out by adopting a construction mode of combining soil dressing and slope greening planting V-shaped grooves. The vertical distance between the V-shaped grooves is 10 meters.

The Nanzhoxin Qi calcite mine is located in the south-Yang county of south-Yang City of Henan province and is located in the southwest direction of Henan province.

The project is located on the line of the important geographical boundary of China, namely the Qinling-Huaihe river, the intersection area of the south and the north, the 800 mm equal-waterline, and the intersection of the humid zone and the semi-humid zone, belongs to the seasonal continental climate of the northern subtropics and has the obvious characteristic of transition from the subtropics to the warm temperature zone. The product is long in summer and winter, short in autumn and spring, and clear in four seasons. The average annual temperature is 14.8 ℃. The temperature is lowest in one month, and the temperature is 1.2 ℃ in each month. The extreme lowest temperature is-14.6 ℃. The temperature is highest in 7 months, and the temperature is 27.5 ℃ in all months. The extreme maximum temperature is 41.6 ℃. The average number of sunshine for many years is 1850.5 hours. Average frost-free period of the year 219 days. The accumulated temperature is 5428.8 ℃ above 0 ℃. The annual average precipitation is 868.8 mm, and most of the precipitation is concentrated in summer. And (5) rain and heat synchronization. Is extremely beneficial to the growth of plants.

After years of mining, the existing mountain destruction and pollution bring certain negative effects on the local ecological environment, and the restoration of the mountain is urgent as soon as possible.

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 slope surface is about 10 meters to 150 meters, and the highest vertical surface of the grindstone groove (the area is about 20000 square meters).

The construction process flow comprises the following steps: the method comprises the steps of manual slope clearing → slope anchor rod construction → metal net hanging → slope planting V-shaped groove for slope planting in drilling installation → slope assistance (straw and plant growing foam board are added) → bottom planting base material spraying → surface planting base material spraying → adding backfill base material in the V-shaped groove → plant growing in the V-shaped groove → installation of a drip pipe 70 → cover of non-woven fabric → maintenance.

And (3) manual slope clearing: dangerous rocks on the slope surface must be removed, and the arrangement is smooth. If the depth exceeds or exceeds 30cm, the stone must be chiseled or embedded with grouted rubble. And after the slope surface is leveled and the acceptance is qualified, the next construction can be carried out.

Construction of a slope anchor rod: drilling with a phi 49 air gun, wherein the hole depth is 5cm deeper than the anchoring depth, washing salt powder in the hole, inserting an anchor rod, and pouring M30 cement mortar to ensure that the anchor rod is positioned in the center of the anchor hole.

Hanging a metal net: when the metal net is hung, the net is tensioned, the net and the anchor rod are fixed through binding wires, and different batten cushion blocks are adopted for adjustment, so that the distance between the metal net and the slope surface is kept at 5-6 cm. The metal net adopts a machine-made galvanized wire net.

Drilling and installing a slope planting V-shaped groove: the operations of the second step to the fifth step are performed according to the above-described embodiments.

Slope is supplementary, adds stopper straw and plant living cystosepiment, because domatic slope is great, so made some auxiliary measure for domatic supplementary, can furthest leave earth on domatic.

Spraying a bottom planting substrate: the adopted spray-seeding machine carries out spray-seeding for the special soil dressing spray-seeding machine for greening, and according to the patent application number: 201910992727.5 the polymer spray-seeding assistant material and the construction method thereof carry out the foreign soil spray-seeding. The mixed seeds are not added in the bottom layer planting base material spraying, the bottom layer spraying thickness is 6-8cm, the bottom layer polymer spray seeding material is uniformly sprayed on the rock surface, the bottom layer spraying mode generally needs to be covered layer by layer so as to meet the requirement of the designed thickness, and the thickness is checked at any time during the spraying so as to ensure the construction quality.

Spraying a surface planting substrate: the adopted spray-seeding machine carries out surface layer spray-seeding for the special soil dressing spray-seeding machine for greening, and according to the patent application number: 201910992727.5 the polymer spray-seeding assistant material and the construction method thereof carry out the foreign soil spray-seeding. The surface layer spraying thickness is about 2cm, the surface layer polymer spray seeding material is uniformly sprayed on the surface of the rock, and the thickness is checked at any time during spraying so as to ensure the construction quality.

Adding a backfill substrate 20 into the V-shaped groove: and filling the backfill substrate 20 into the V-shaped groove, wherein the thickness of the backfill substrate 20 is more than 50 cm. The backfill matrix comprises 80 parts by weight of soil, 10.8 parts by weight of decomposed plant fiber, 0.2 part by weight of water-retaining agent, 2 parts by weight of perlite, 1 part by weight of compound fertilizer, 1 part by weight of controlled release fertilizer and 5 parts by weight of peat soil.

Planting plants in the V-shaped groove: the variety is 8 percent of bermudagrass, 4 percent of tall fescue, 8 percent of white clover, 13 percent of robinia pseudoacacia, 13 percent of magnolia multiflora, 21 percent of alfalfa, 21 percent of cosmos, 4 percent of rhus chinensis, 21 percent of amorpha fruticosa and 13 percent of pyracantha fortuneana, and the proportion of the seeds in spray sowing is the same as that of the seeds in spray sowing. Wherein the vine plant is selected from herba Humuli Scandentis and radix Puerariae, and is planted on two sides of the V-shaped groove respectively.

Installing a drip pipe 70: in order to facilitate maintenance and installation of the drip irrigation system, one drip pipe 70 is arranged on each V-shaped groove, and one drip pipe 70 is arranged on each other slope surface at intervals of 3-5 m.

Covering non-woven fabrics and maintaining: in the early stage of plant growth, the non-woven fabric is required to be covered for maintenance so as to improve the survival rate of the plants. And in the later period, the maintenance measures such as pest control, topdressing, reseeding and the like are carried out in time.

The recovery effect is that after the plants are planted in the V-shaped groove for 15 days, the seedlings are relatively regular, the height of the plants is about 10cm, the coverage rate reaches over 90 percent, and the growth vigor of the plants is good. The V-shaped groove does not deform and achieves the expected target.

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; an environment suitable for the growth of arbors, shrubs and vines is established on a steep side slope, and water and soil loss can be effectively prevented. Has excellent air permeability, 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 effect of plant community localization, succession naturalization and plant landscape and surrounding environment homogenization is rapidly realized in the slope section, the problems of water and soil loss and the like are effectively solved, the stability of the slope is improved, the ecological environment is ecologically restored, the contradiction between serious ecological restoration and water and soil loss, more rainfall and less rainfall in different environments is solved, and the application prospect is wide.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a side slope planting technique V type groove which characterized in that: the steel bars (40) are arranged on the slope surface of the rock side slope (60) in the horizontal direction, and the steel bars (40) and the rock side slope (60) form a V-shaped structure; 2-3 rows of transverse reinforcing ribs (50) are uniformly distributed on the reinforcing steel bars (40); concave-convex net sheets (30) are arranged on the inner sides of the reinforcing steel bars (40) and the transverse reinforcing ribs (50) to form V-shaped grooves; a backfill substrate (20) is filled in the V-shaped groove; planting vines (11), arbors (12), shrubs (13) and herbs (14) on the backfill substrate (20); a drip pipe (70) is arranged on the V-shaped groove for slope planting.

2. A V-groove for slope planting according to claim 1, wherein said concavo-convex net sheet (30) is wave-shaped; the material of the concave-convex net sheet (30) 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; the concave-convex net sheet (30) is provided with a boss (31), a concave table (32), a water filtering hole (33) and a filtering device (34).

3. A V-groove for slope planting according to claim 1, wherein the steel bar (40) is a screw steel with a diameter greater than or equal to 10 mm; the steel bar (40) and the rock side slope (60) form an included angle of 30-80 degrees; the depth of the steel bar (40) inserted into the rock side slope (60) is more than 10 cm; the distance between the steel bars (40) is 20cm-50 cm; the transverse reinforcing ribs (50) are hot-dip galvanized steel wires with the diameter larger than 1.5 mm.

4. A V-groove for slope planting according to claim 2, wherein the thickness of the material of the concave-convex net sheet (30) is 0.1mm-1 mm; the height of the boss (31) and the height of the concave platform (32) are 10mm-30 mm; the boss (31) faces the rock slope (60); the water filtering holes (33) are arranged in the concave table (32) at intervals of 10-100 cm; the water filtering hole (33) is provided with the filtering device (34); the filtering device (34) is composed of one or more of gravel, gauze and non-woven fabrics.

5. A construction method of a V-shaped groove for slope planting is characterized by comprising the following steps:

a. cleaning the rock slope (60);

b. drilling holes with the depth of more than 10cm by using a drill bit with the depth of more than or equal to 10mm and forming an included angle of 30-80 degrees with the rock slope surface (60);

c. anchoring said reinforcement (40) in the bore hole, a threaded steel of a diameter matching the bore hole, exposed 40cm-100 cm;

d. transversely reinforcing the reinforcing steel bars (40) by using the transverse reinforcing ribs (50), wherein 2-3 reinforcing steel bars are distributed at equal intervals;

e. binding and fixing the concave-convex net sheet (30) on the inner side of the steel bar (50) by using steel wires, and arranging the filtering device (34) at the water filtering hole (33);

f. filling the backfill substrate (20) into the V-shaped groove, wherein the thickness of the backfill substrate (20) is more than 50 cm;

g. planting the vine (11), the arbor (12), the shrub (13) and the herb (14), wherein the vine (11) is planted in various rows respectively on the inner side and the outer side of the V-shaped groove;

h. the weeping pipe (70) is arranged on the V-shaped groove, and weeping holes are arranged at intervals of 20-100 cm to ensure the moisture required by plant growth.

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