CN117868165A - Water-saving greening integrated protection structure for soil slopes in arid regions and construction method - Google Patents

Abstract

The invention provides a water-saving greening integrated protection structure for a soil slope in a dry area and a construction method thereof, wherein the water-saving greening integrated protection structure comprises a side slope water storage structure, a greening ecological groove and a protection structure; the side slope water storage structure comprises a water collecting channel excavated on the side slope, the top of the water collecting channel is covered with a permeable cover plate, the water collecting channels with different heights are communicated through a drain pipe, and an automatic water interception device is arranged on the drain pipe; the top of the side slope water storage structure is provided with a greening ecological groove for planting plants; the slope is provided with a protective structure for reinforcing the slope. The rainwater in the middle period of rainfall collection is collected through the side slope water storage structure and the water storage part of the greening ecological groove, and water resources are fully utilized by utilizing the structures such as the water absorption cotton stick, the permeable membrane and the like of the ecological water storage groove in the drought period; and the protection structure guarantees the stability of the side slope, and is suitable for the soil side slope with the gradient less than 60 degrees.

Description

A water-saving greening integrated protection structure and construction method for soil slopes in arid areas

Technical Field

The invention relates to a water-saving greening integrated protective structure for soil slopes in arid areas and a construction method, and belongs to the research field of slope ecological restoration.

Background technique

Large-scale excavation of earth and stone has exposed the slope surface, forming artificial native bare land, and the ecosystem degradation is extremely prominent, which will lead to long-term and severe soil erosion and other problems. In particular, arid areas generally have the characteristics of low precipitation, high evaporation, and fragile ecology. The ecological restoration of soil slopes in arid areas faces the reality of water shortage and plant growth difficulties, making ecological restoration more difficult.

At present, the functions of slope protection and ecological restoration methods are relatively simple, often only having one of the functions of slope protection, slope greening, slope water conservation, etc. Therefore, it is difficult to provide an integrated solution to the landslide problem caused by the difficulty of vegetation growth due to scarce rainfall and loose soil in arid areas.

Therefore, there is an urgent need for a method that can combine slope greening, slope protection and slope water conservation and storage, which can not only carry out ecological restoration of the slope, prevent soil erosion and slope landslides, but also solve the problem of vegetation death due to water shortage.

Summary of the invention

In order to solve the current technical problems, the main purpose of the present invention is to provide an integrated water-saving greening protection structure and construction method for soil slopes in arid areas. Rainwater during the concentrated rainfall period is collected through the slope water storage structure and the water storage part of the greening ecological trough, and water resources are fully utilized during drought periods using the absorbent cotton swabs, permeable membranes and other structures of the ecological water storage trough; and the protection structure ensures the stability of the slope, and is suitable for soil slopes with a slope of less than 60 degrees.

In order to realize the above technical features, the purpose of the present invention is achieved as follows: a water-saving greening integrated protection structure for soil slopes in arid areas, comprising a slope water storage structure, a greening ecological trough and a protection structure;

The slope water storage structure includes a water collection channel excavated on the slope, the top of the water collection channel is covered with a permeable cover plate, and the water collection channels at different heights are connected through drainage pipes, and an automatic water cut-off device is provided on the drainage pipe;

A greening ecological trough for planting plants is arranged on the top of the slope water storage structure;

A protective structure for reinforcing the slope is arranged on the slope.

The water collection channel and drainage pipe are both made of concrete;

The water collection channels are arranged in plurality at different elevations along the slope;

The permeable cover plate is provided with a drain hole, and the permeable cover plate is formed by bonding crushed stones with polyurethane material.

The automatic water cut-off device includes a ring cage, a wooden ball, a pulley, a rope lock and a baffle; the ring cage is made of steel bars and fixed at the water outlet of the drain pipe, and its size is made according to the size of the wooden ball; a wooden ball is arranged inside the ring cage, and the top of the wooden ball is connected to the rope lock, which is connected to the baffle after passing around the pulley, and the baffle is arranged at the inlet of the drain pipe.

The wooden ball is made of wood, with waterproof paint on the outer surface, and its size is determined according to the weight of the baffle and the depth of the water collection channel; the baffle is made of metal plate, with waterproof paint on the outer surface, and its diameter is larger than the diameter of the drainage pipe.

The greening ecological trough includes a trough body, the top of the trough body is covered with an annular permeable cover plate, a water collection room is arranged inside the trough body, a water supply pipe is arranged at the inner bottom of the trough body, a permeable membrane is arranged in the middle of the water supply pipe, a support platform is arranged inside the trough body, a fertilizer bag is placed on the support platform, a water-absorbing cotton strip passes through the bottom of the trough body, and an ecological restoration substrate is arranged inside the trough body.

The greening ecological trough is 0.5m-0.7m long, 0.3m-0.45m wide, and 0.15m-0.2m high; the annular permeable cover is provided with a drainage hole, and the annular permeable cover is made of crushed stones bonded by polyurethane material; the water collection room is located below the annular permeable cover, and the inner and outer wall thickness of the water collection room is 1cm-1.5cm, and the bottom thickness is 2cm-3cm; the annular permeable cover is made of crushed stones bonded by polyurethane material; a drainage hole is provided on the support platform, and the support platform is made of concrete material; the fertilizer bag is packaged in a mesh bag; the absorbent cotton strip is made of sponge material, and its length is the distance from the bottom of the water collection channel to the greening ecological trough.

The ecological restoration substrate is divided into two layers. The components of the bottom layer of the ecological restoration substrate are calculated by weight: 96 to 100 parts of soil, 3 to 4 parts of ecological improvers, 3 to 4 parts of organic materials, 4 to 5 parts of organic matter, and the thickness is about 8-10 cm. The components of the upper layer of the ecological restoration substrate are calculated by weight: 96 to 100 parts of soil, 3 to 4 parts of ecological improvers, 3 to 4 parts of organic materials, 4 to 5 parts of organic matter, and 20 greening seeds, and the thickness is 2 cm to 2.5 cm.

The protective structure includes a retaining wall embedded in the slope, anchor columns driven into the slope and cables that stabilize the anchor columns; the retaining wall is embedded in the slope in both vertical and horizontal planes and adopts a concrete structure. The anchor columns are fixed in the retaining wall and are reinforced concrete structures. The bottom is conical and the length is longer than the depth dimension of the retaining wall. The slope foot is supported and fixed by inclined support columns. A pull ring is provided on the top of the anchor column, and the anchor columns in the same row are connected to each other by cables to form a whole.

A construction method for a water-saving greening integrated protection structure for arid area soil slopes comprises the following steps:

Step 1: Clean the slope:

Before construction, remove loose stones, loose soil, and loose roots on the slope to ensure that there are no safety hazards of falling objects on the slope; if there is a reverse slope, it is necessary to carry out appropriate repairs and level the gullies on the slope;

Step 2: Set up the protective structure:

First, dig a ditch of the size of the retaining wall on the slope, and drive in prefabricated anchor columns after excavation, then cast the retaining wall and reserve space for drainage pipes to ensure the overall stability of the slope;

Step 3: Set up water storage structure:

First, dig the water collection channel and ensure that one side of the drainage pipe is slightly higher. Then arrange the drainage pipe and reserve the position of the baffle. Then, complete the layout of the automatic water cut-off device and spray the anti-seepage material at the interface between the baffle and the drainage pipe.

Step 4: Place the greening ecological trough:

Place greening ecological troughs at intervals of 0.4m-0.8m on the water collection channel, and place fertilizer bags on the support platform. Finally, cover the greening ecological troughs with permeable covers;

Step 5: Spraying substrate:

After placement, first spray the bottom ecological restoration substrate in the greening ecological trough, and then spray the upper ecological restoration substrate containing greening seeds;

Step 6: Slope maintenance:

Use water pipes to irrigate the ecological restoration base material on the entire slope, and then carry out slope maintenance.

The present invention has the following beneficial effects:

1. The present invention includes a protective structure, a water storage structure, and a greening ecological structure; the protective structure enables the water storage structure and the greening ecological structure to be stably and safely fixed on the slope, wherein the cable integrates the anchoring columns of each step, thereby increasing the stability of the stable slope.

2. The water storage structure of the present invention can realize automatic cascade water storage during rainfall, providing water resources for plants in the greening ecological trough. The permeable cover is made of permeable material, which can allow more rainwater to penetrate into the water collection channel during rainfall, while avoiding direct sunlight and evaporation of rainwater in the water collection channel. The drainage holes make it easier for rainwater to flow into the water collection channel. The bottom of each cascade water collection channel ensures that the drainage channel side is lower, which can facilitate the automatic flow of rainwater from each cascade into the drainage channel through gravity.

3. The present invention can realize the automatic water cut-off function by the automatic water cut-off device arranged on the drainage channel, which is free from manual operation and realizes the effect of cascade water storage from low to high water collection channels. During rainfall, rainwater can flow into the water collection channel through the permeable cover plate and the drain hole. The water collection channel at the high place can flow into the drainage channel by gravity and flow into the next step channel. All the stepped water collection channels first flow into the lowest water collection channel. When the lowest water collection channel is full of water, the automatic water cut-off device can lift the wooden ball due to the buoyancy to make the baffle connected to the other end of the wooden ball fall down, stop the upper drainage channel, and thus realize cascade water storage in sequence.

4. After the protective structure and water storage structure of the present invention provide stable and available water resources for the greening ecological trough structure, the greening ecological trough can achieve the effect of rapid greening of the slope and saving water. At the same time, by adjusting the plant varieties in the greening ecological trough, the pattern and text of the entire slope can be presented, which has a good landscape effect.

5. The plants in the trough of the present invention can automatically replenish water by absorbing water in the water collection channel through the absorbent cotton strip, eliminating the need for manual watering. The permeable cover structure can greatly reduce the evaporation of rainwater in the water storage space due to direct sunlight, and it is also convenient to clean up the debris in the water collection space. The permeable cover is made of permeable material, which can better utilize rainwater during the rainy period. The water replenishment pipeline in the greening ecological trough is equipped with a permeable membrane to slowly irrigate the rainwater accumulated in the trough wall into the soil in the trough, which can fully utilize water resources while eliminating manual operation.

6. The support platform in the greening ecological trough of the present invention is equipped with a net bag of fertilizer bags. When it rains, the nutrients can be brought into the soil through the water flow, eliminating the need for manual operation. The greening ecological trough can be recycled and has certain low-carbon and environmentally friendly characteristics.

7. The protective structure, water storage structure and greening ecological structure of the present invention constitute three large structures. At the same time, the protective structure provides stability for the water storage structure and the greening ecological structure, and the water storage structure provides collected rainwater for the greening ecological structure to utilize, so that the greening ecological trough can achieve the effect of greening the slope, thereby integrating the functions of slope greening, slope stability protection, slope water saving, etc., and can solve most of the problems of slopes in arid areas from multiple aspects.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is an overall structural diagram of the present invention.

FIG. 2 is an overall structural diagram of the present invention after a portion of the greening ecological trough is installed.

FIG. 3 is a schematic diagram of the automatic water cutoff device of the present invention.

FIG. 4 is a partial enlarged view of the automatic water cutoff device in FIG. 3 of the present invention.

FIG. 5 is a schematic diagram of the greening ecological trough of the present invention.

FIG. 6 is a construction process diagram of the present invention.

In the figure: inclined support column 1, pull ring 2, anchor column 3, retaining wall 4, cable 5, sewer hole 6, infiltration cover 7, water collection channel 8, pulley 9, rope lock 10 and baffle 11, wooden ball 12, ring cage 13, absorbent cotton strip 14, annular infiltration cover 15, ecological restoration substrate 16, support platform 17, drainage pipe 18, water supply pipe 19, fertilizer bag 20.

Detailed ways

The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

Embodiment 1:

Referring to Figures 1-5, a water-saving greening integrated protection structure for soil slopes in arid areas includes a slope water storage structure, a greening ecological trough and a protection structure; the slope water storage structure includes a water collection channel 8 excavated on the slope, the top of the water collection channel 8 is covered with a permeable cover plate 7, and the water collection channels 8 at different heights are connected through a drainage pipe 18, and the drainage pipe 18 is provided with an automatic water interception device; the top of the slope water storage structure is provided with a greening ecological trough for planting plants; the slope is provided with a protection structure for reinforcing the slope. By providing a slope protection structure, a greening ecological trough and a slope water storage structure, soil erosion on the slope can be prevented, and rainwater can be stored during the concentrated rainfall period while the slope is greened. It is suitable for soil slopes with a slope of less than 60 degrees.

Furthermore, the water collection channel 8 and the drainage pipe 18 are both made of concrete; a plurality of water collection channels 8 are arranged along different elevations of the slope; the permeable cover plate 7 is provided with a drainage hole 6, and the permeable cover plate 7 is made of polyurethane material to bond crushed stones. The water collection channel 8 can realize automatic water collection, and then realize rainwater collection, and the connection through the drainage pipe 18 ensures automatic water replenishment between different water collection channels 8. By being able to transport a large amount of rainwater collected by the water collection channel 8 on the top of the slope to each step water collection channel 8, the utilization of water resources is increased.

Among them, preferably, the permeable cover plate 7 is 0.3m wide, 3cm thick, and 0.4m long. The cover plate is provided with a drainage hole 6 with a diameter of 2cm. It is made of crushed stones bonded by polyurethane material. Its function is to collect rainwater into the water collection channel 8 through the drainage hole 6 and the pores in the plate, while preventing the water in the water collection channel 8 from evaporating due to large-area exposure to the sun.

Furthermore, the automatic water cut-off device includes a cage 13, a wooden ball 12, a pulley 9, a rope lock 10 and a baffle 11; the cage 13 is made of steel bars and fixed at the outlet of the drain pipe 18, and its size is made according to the size of the wooden ball 12; the wooden ball 12 is arranged inside the cage 13, the top of the wooden ball 12 is connected to the rope lock 10, the rope lock 10 is connected to the baffle 11 after passing around the pulley 9, and the baffle 11 is arranged at the inlet of the drain pipe 18. By adopting the above-mentioned automatic water cut-off device, the opening and closing of the drain pipe 18 can be automatically controlled. Among them, the length of the rope lock is the length of the wooden ball 12 connected to the upper part of the baffle 11 after it floats up. The overall automatic water cut-off device fixes the wooden ball 12 in a channel through the ring cage 13. When the water level is low, since the weight of the wooden ball 12 is greater than the weight of the baffle 11, the baffle 11 can be pulled up so that the upper water collection channel 8 can transport water through the drain pipe 18. At the same time, when the rainwater in the water collection channel 8 reaches a certain water level, the buoyancy can offset part of the weight of the wooden ball 12, so that the weight of the baffle 11 is greater than the weight of the wooden ball after the buoyancy is generated, and it falls down to intercept the water flow.

Furthermore, the wooden ball 12 is made of wood, with waterproof paint on the outer surface, and the size is determined according to the weight of the baffle 11 and the depth of the water collection channel 8; the baffle 11 is made of metal plate, with waterproof paint on the outer surface, and the diameter is larger than the diameter of the drainage pipe 18. The above structure can achieve a good anti-corrosion effect.

Furthermore, the greening ecological trough includes a trough body, the top of which is covered with an annular permeable cover plate 15, a water collection room is arranged inside the trough body, a water supply pipe 19 is arranged at the inner bottom of the trough body, a permeable membrane 21 is arranged in the middle of the water supply pipe 19, a support platform 17 is arranged inside the trough body, a fertilizer bag 20 is placed on the support platform 17, a water-absorbing cotton strip 14 passes through the bottom of the trough body, and an ecological restoration substrate 16 is arranged inside the trough body.

Furthermore, the greening ecological trough is 0.5m-0.7m long, 0.3m-0.45m wide, and 0.15m-0.2m high; the annular permeable cover plate 15 is provided with a drainage hole 6, and the annular permeable cover plate 15 is made of crushed stones bonded by polyurethane material; the water collection room is located below the annular permeable cover plate 15, and the inner and outer wall thickness of the water collection room is 1cm-1.5cm, and the bottom thickness is 2cm-3cm; the annular permeable cover plate 15 is made of crushed stones bonded by polyurethane material; the support platform 17 is provided with a drainage hole 6, and the support platform 17 is made of concrete material; the fertilizer bag 20 is packaged in a mesh bag; the absorbent cotton strip 14 is made of sponge material, and its length is the distance from the bottom of the water collection channel 8 to the greening ecological trough. The greening ecological trough can be used for greening slopes.

In this embodiment, the greening ecological trough is about 0.6m long, about 0.3m wide, and about 0.18m high. The annular permeable cover plate 15 is provided with a drainage hole 6 with a diameter of about 0.5cm. The annular permeable cover plate 15 is 3cm wide and 0.5cm thick. Its outer side is 1cm away from the outer wall of the trough, and is made of crushed stones bonded by polyurethane material; the water collection room is located under the cover plate. The inner and outer walls of the water collection room are 1cm thick and the bottom is 2cm thick. Its function is to collect rainwater into the wall of the greening ecological trough through the drainage hole 6 and the pores in the plate, while preventing the water in the trough wall from evaporating due to large-area sunlight exposure.

In this embodiment, the water supply pipe 19 has a diameter of 1.5 cm and a wall thickness of 0.3 cm. Its function is to transport the water in the groove wall to the permeable membrane 21; a permeable membrane 21 is arranged in the middle of the water supply pipe 19, which is made of cellophane material and has a diameter of about 0.3 cm. Its function is to slowly infiltrate the water in the water supply pipe 19 into the soil to maintain efficient use of water resources.

In this embodiment, the support platform 17 is 2 cm wide and 0.3 cm thick, and the drain hole 6 has a diameter of 0.5 cm. Its function is to place the fertilizer bag 20 and to transport water containing nutrients through the drain hole 6 of the plate. A fertilizer bag 20 is placed on the support platform 17, and the fertilizer bag 20 is packaged in a mesh bag. Its function is to allow the fertilizer to be washed by rainwater and enter the soil in the trough with the water flow for plant growth, eliminating the need for artificial fertilization.

In this embodiment, the absorbent cotton strip 14 has a diameter of about 0.5 cm, and its function is to transport the water in the water collection channel 8 to the soil in the trough through the water absorption principle of the sponge material for use in plant growth.

Furthermore, the ecological restoration substrate 16 is divided into two layers. The components of the bottom layer of the ecological restoration substrate 16 are calculated by weight: 96 to 100 parts of soil, 3 to 4 parts of ecological improvers, 3 to 4 parts of organic materials, 4 to 5 parts of organic matter, and the thickness is about 8-10 cm. The components of the upper layer of the ecological restoration substrate 16 are calculated by weight: 96 to 100 parts of soil, 3 to 4 parts of ecological improvers, 3 to 4 parts of organic materials, 4 to 5 parts of organic matter, and 20 greening seeds, with a thickness of 2 cm to 2.5 cm.

Preferably, in this embodiment, the ecological restoration substrate 16 can be divided into two layers. The components of the bottom ecological restoration substrate 16 are calculated by weight: 96 parts of soil, 4 parts of ecological improvers, 4 parts of organic materials, and 5 parts of organic matter, with a thickness of approximately 10 cm. The components of the upper ecological restoration substrate 16 are calculated by weight: 98 parts of soil, 4 parts of ecological improvers, 34 parts of organic materials, and 5 parts of organic matter. The greening seeds are 20 g/m³ of ryegrass, and its thickness is approximately 2 cm.

Furthermore, the protective structure includes a retaining wall 4 embedded in the slope, anchor columns 3 driven into the slope and cables 5 for stabilizing the anchor columns 3; the retaining wall 4 is embedded in the slope vertically and horizontally and adopts a concrete structure. The anchor columns 3 are fixed in the retaining wall 4 and are reinforced concrete structures. The bottom is conical and the length is longer than the depth dimension of the retaining wall 4. The inclined support column 1 is used to support and fix at the foot of the slope. A pull ring 2 is provided at the top of the anchor column 3, and the anchor columns 3 in the same row are connected to each other by cables 5 to form a whole.

Preferably, in this embodiment, the retaining wall 4 is embedded in the slope in a vertical horizontal plane and is made of concrete material with a thickness of about 0.5m and a depth of 2m. The anchor column 3 is fixed in the retaining wall 4 and is made of reinforced concrete material. Its bottom is conical with a diameter of about 0.4m and a length of 0.5m more than the depth of the retaining wall 4. An inclined support column 1 is used at the foot of the slope. A pull ring 2 is provided on the top of the anchor column 3, and the anchor columns 3 in the same row are connected to each other by a cable 5. When the entire protective structure is set up, in order to prevent slope instability, the first level of slope instability can be protected by interception of the retaining wall 4, the second level of slope instability can be protected by the fixing effect of the anchor column 3, and the third level of slope instability can be protected by the tension of the cable 5 to transmit the force to the anchor columns 3 and the retaining wall 4 at all levels.

Embodiment 2:

Referring to FIG6 , a construction method for a water-saving greening integrated protection structure for arid soil slopes includes the following steps:

Step 1: Clean the slope:

Before construction, remove loose stones, loose soil, and loose roots on the slope to ensure that there are no safety hazards of falling objects on the slope; if there is a reverse slope, it is necessary to carry out appropriate repairs and level the gullies on the slope;

Step 2: Set up the protective structure:

First, a ditch of the size of the retaining wall 4 is excavated on the slope surface, and after excavation, the prefabricated anchoring column 3 is driven in, and then the retaining wall 4 is cast, and the position of the drainage pipe 18 is reserved to ensure the overall stability of the slope;

Step 3: Set up water storage structure:

First, dig the water collection channel 8 and ensure that one side of the drainage pipe 18 is slightly higher, then arrange the drainage pipe 18 and reserve the position of the baffle 11, then complete the layout of the automatic water cut-off device, and spray the anti-seepage material at the interface between the baffle 11 and the drainage pipe 18;

Step 4: Place the greening ecological trough:

Greening ecological troughs are placed on the water collection channel 8 at intervals of 0.4m-0.8m, and fertilizer bags 20 are placed on the support platform 17, and finally, permeable cover plates 7 are placed between the greening ecological troughs;

Step 5: Spraying substrate:

After placement, the bottom ecological restoration substrate 16 is first sprayed in the greening ecological trough, and then the upper ecological restoration substrate 16 containing greening seeds is sprayed;

Step 6: Slope maintenance:

The ecological restoration substrate 16 of the entire slope is irrigated with a water pipe, and then the slope maintenance is carried out.

Claims (9)

1. The water-saving greening integrated protection structure for the soil slope in the arid region is characterized by comprising a slope water storage structure, a greening ecological groove and a protection structure;

the side slope water storage structure comprises a water collecting channel (8) excavated on the side slope, a permeable cover plate (7) covers the top of the water collecting channel (8), the water collecting channels (8) with different heights are communicated through a drain pipe (18), and an automatic water interception device is arranged on the drain pipe (18);

the top of the side slope water storage structure is provided with a greening ecological groove for planting plants;

the slope is provided with a protective structure for reinforcing the slope.

2. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 1, wherein the protection structure comprises the following components: the water collecting channel (8) and the water discharging pipe (18) are made of concrete materials;

a plurality of water collecting channels (8) are arranged along different elevations of the slope body;

the infiltration cover plate (7) is provided with a water outlet (6), and the infiltration cover plate (7) is formed by bonding broken stone by adopting polyurethane materials.

3. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 1, wherein the protection structure comprises the following components: the automatic water interception device comprises a ring cage (13), a wooden ball (12), a pulley (9), a rope lock (10) and a baffle (11); the ring cage (13) is made of steel bars and is fixed at the water outlet of the drain pipe (18), and the size of the ring cage is made according to the size of the wooden ball (12); the inside of ring cage (13) is provided with wood ball (12), and rope lock (10) are connected on the top of wood ball (12), and rope lock (10) walk around pulley (9) after link to each other with baffle (11), baffle (11) set up the import department at drain pipe (18).

4. A water conservation afforestation integration protective structure to arid region soil slope according to claim 3, characterized in that: the wooden ball (12) is made of wood, waterproof paint is coated on the outer surface of the wooden ball, and the size of the wooden ball is determined according to the weight of the baffle (11) and the depth of the water collecting channel (8); the baffle (11) is made of metal plates, waterproof paint is coated on the outer parts of the baffle, and the diameter of the baffle is larger than that of the drain pipe (18).

5. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 1, wherein the protection structure comprises the following components: the greening ecological tank comprises a tank body, an annular permeation cover plate (15) is covered at the top of the tank body, a water collecting room is arranged in the tank body, a water supplementing pipeline (19) is arranged at the inner bottom of the tank body, a permeation membrane (21) is arranged in the middle of the water supplementing pipeline (19), a supporting table (17) is arranged in the tank body, a fertilizer bag (20) is placed on the supporting table (17), a water absorbing cotton sliver (14) penetrates through the bottom of the tank body, and an ecological restoration substrate (16) is arranged in the tank body.

6. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 5, wherein the protection structure comprises the following components: the greening ecological groove is 0.5m-0.7m long, 0.3m-0.45m wide and 0.15m-0.2m high; the annular permeable cover plate (15) is provided with a water outlet (6), and the annular permeable cover plate (15) is formed by bonding broken stone by adopting polyurethane materials; the water collecting room is positioned below the annular permeation cover plate (15), the inner wall thickness and the outer wall thickness of the water collecting room are 1cm-1.5cm, and the bottom thickness is 2cm-3cm; the annular permeable cover plate (15) is formed by bonding broken stone by adopting polyurethane materials; a water outlet (6) is arranged on the supporting table (17), and the supporting table (17) is made of concrete materials; the fertilizer bag (20) is packed by a net bag; the water absorbing cotton sliver (14) is made of sponge material, and the length of the water absorbing cotton sliver is the distance from the bottom of the water collecting channel (8) to the inside of the greening ecological groove.

7. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 5, wherein the protection structure comprises the following components: the ecological restoration substrate (16) is divided into two layers, and the components of the ecological restoration substrate (16) at the bottom layer are respectively as follows in parts by weight: 96-100 parts of soil, 3-4 parts of ecological modifier, 3-4 parts of organic material, 4-5 parts of organic matter and about 8-10cm in thickness, wherein the upper ecological restoration substrate (16) comprises the following components in parts by weight: 96-100 parts of soil, 3-4 parts of ecological modifier, 3-4 parts of organic material, 4-5 parts of organic matter and 20 parts of green-planted seeds, wherein the thickness of the green-planted seeds is 2 cm-2.5 cm.

8. The water-saving greening integrated protection structure for a soil slope in a dry area according to claim 1, wherein the protection structure comprises the following components: the protection structure comprises a retaining wall (4) embedded into a side slope, an anchor post (3) driven into the side slope and a stay rope (5) for stabilizing the anchor post (3); the retaining wall (4) is embedded into a slope body in a vertical horizontal plane, a concrete structure is adopted, the anchor posts (3) are fixed in the retaining wall (4) and are of reinforced concrete structures, the bottoms of the anchor posts are conical, the lengths of the anchor posts are longer than the depth dimension of the retaining wall (4), the anchor posts (1) are supported and fixed at the toe of the slope, pull rings (2) are arranged at the tops of the anchor posts (3), and the anchor posts (3) in the same row are connected with one another to form a whole through stay ropes (5).

9. The construction method of the water-saving greening integrated protection structure for the soil slope of the arid region according to any one of claims 1 to 8, which is characterized by comprising the following steps:

step one, cleaning a slope:

before construction, firstly cleaning loose substances of loose stones, floating soil and floating roots on the slope surface, and ensuring that the slope has no potential safety hazard of falling substances; if the slope is backward, proper trimming is needed, and the slope gully part is leveled;

step two, setting a protection structure:

firstly, excavating a ditch with the size of a retaining wall (4) on a slope, firstly, driving a prefabricated anchor post (3) after excavating, then, pouring the retaining wall (4), and reserving the position of a drain pipe (18) to ensure the integral stability of the slope;

step three, setting a water storage structure:

firstly, excavating a water collecting channel (8), ensuring that one side of a drain pipe (18) is slightly higher, arranging the drain pipe (18) and reserving the position of a baffle (11), then finishing the layout of an automatic water interception device, and spraying a water seepage prevention material at the joint of the baffle (11) and the drain pipe (18);

step four, placing a greening ecological groove:

placing greening ecological grooves on the water collecting channel (8) at intervals of 0.4-0.8 m, placing fertilizer bags (20) on the supporting table (17), and finally covering a permeable cover plate (7) between the greening ecological grooves;

step five, spraying and seeding the base material:

after the placement, the bottom ecological restoration base material (16) is firstly sprayed in the greening ecological tank, and then the upper ecological restoration base material (16) containing the green planting seeds is sprayed;

step six, slope maintenance:

and (3) irrigating the ecological restoration base material (16) of the whole slope by using a water pipe, and then carrying out slope maintenance.