CN113089693A

CN113089693A - Measure for ecological slope protection of abrupt-slope bermuda grass and preparation method of anti-abrupt plant-growing concrete

Info

Publication number: CN113089693A
Application number: CN202110438717.4A
Authority: CN
Inventors: 焦延涛; 陈卓; 聂相田
Original assignee: North China University of Water Resources and Electric Power
Current assignee: North China University of Water Resources and Electric Power
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-07-09
Anticipated expiration: 2041-04-23
Also published as: CN113089693B

Abstract

Compared with the traditional vegetation concrete, the steep-resistant vegetation concrete can better lock water and nutrients in the concrete and prevent the problem of uneven distribution of water and nutrients in the vegetation concrete in unit area. And the invention firstly lays a layer of base concrete on the slope, and sets a mould groove on the base concrete, then puts the mould frame with the anti-steep type planting concrete into the mould groove, rotates the mould frame to the position parallel to the slope in the daytime to make the bermuda grass fully receive the illumination, rotates the mould frame to the horizontal position at night to prevent the steep slope from making the excessive water and nutrient in the anti-steep type planting concrete incline towards the ground, and then ensures the water and nutrient to be evenly distributed in the anti-steep type planting concrete.

Description

Measure for ecological slope protection of abrupt-slope bermuda grass and preparation method of anti-abrupt plant-growing concrete

Technical Field

The invention relates to the technical field of ecological slope protection, in particular to a measure for ecological slope protection of a steep bermuda grass and a preparation method of steep-resistant plant-growing concrete.

Background

In recent years, with large-scale engineering construction and mining, a large number of geotechnical slopes which cannot recover vegetation are formed. Traditional slope engineering reinforcement measures mostly adopt slope protection structures such as masonry retaining walls and sprayed concrete, only play a role in protecting water and soil loss, no matter how do, just like grey white, do not help the view, do not talk about the protective action to the ecological environment, on the contrary can only destroy the harmony of the ecological environment. At present, various river channel side slopes in China are damaged to different degrees due to the influence of weather reasons, temperature expansion and contraction and the erosion of rivers along with the increase of service life, and the ecological slope protection technology is gradually applied to engineering construction along with the enhancement of environmental awareness and economic strength of people. The ecological slope protection technology is a slope protection technology for supporting a slope or a side slope by basic knowledge of subjects such as comprehensive engineering mechanics, soil science, ecology, botany and the like to form a comprehensive slope protection system consisting of plants or engineering and plants. After the excavation side slope forms, through planting the plant, utilize plant root system anchoring effect to protect, consolidate the side slope top layer, make it can satisfy the requirement of side slope top layer stability, can resume the slope protection mode of destroyed natural ecological environment again, be an effectual slope protection, solid slope means.

The variety of ecological bank protection is numerous, and each has the advantage and shortcoming, is applicable to different application scenarios respectively, if:

an artificial grass planting slope protection is a traditional slope plant protection measure for simply planting grass seeds on the slope surface of a slope through manual work. The method is mainly used for soil cutting and embankment side slope protection projects with low side slope height, gentle slope and suitability for grass growth, has simple construction and low manufacturing cost, and has the defects that the satisfactory side slope protection effect cannot be achieved due to the reasons of uneven grass seed sowing, easy rain washing of grass seeds, low grass planting survival rate and the like, slope ditch washing, surface soil loss and other side slope diseases are caused, a large amount of side slope disease treatment and repair projects are caused, and the technology is applied less in recent years;

a hydraulic spray-seeding grass planting slope protection is a slope plant protection measure newly developed in nearly more than ten years abroad, grass seeds, fertilizer, adhesive, paper pulp, soil conditioner, pigment and the like are mixed with water in a mixing box according to a certain proportion and stirred evenly, and the mixture is sprayed to the slope surface through mechanical pressurization to complete grass planting construction, and the hydraulic spray-seeding grass planting slope protection has the advantages of simple construction and high speed; the construction quality is high, and grass seeds are sprayed uniformly and quickly to germinate and are uniform; the protection effect is good, under normal conditions, the slope plant coverage rate can reach more than 70% after one month of spray sowing, and the protection and greening functions are formed after two months; the applicability is wide. The defects that the soil fixation and water retention capacity is low, and a runoff ditch and erosion are easily formed; constructors are easy to steal work, reduce materials and make fake, and surface phenomena are formed; because of improper variety selection and insufficient mixed materials, soil erosion or ditch washing is easily caused in the later period.

The foreign soil vegetation plant slope protection is characterized in that foreign soil is prepared from water-retaining agents, adhesives, plant fibers, peat soil, humus soil, slow-release compound fertilizers and the like, is paved on a slope surface after being stirred by a special machine to form a foreign soil layer (vegetation concrete) with a certain thickness, and then selected seeds are sown in the foreign soil layer (vegetation concrete). The advantages are that: the matrix and seed formula can be carried out according to geological and climatic conditions, so that the method has wide adaptability; the combination of the foreign soil and the slope surface is firm; the air permeability and the fertility of the soil layer are good; the drought resistance is better; the mechanization degree is high, the speed is high, the construction is simple and convenient, and the construction period is short; the vegetation has good protection effect, and the normal growth of plants can be maintained basically without maintenance; the method is suitable for rocky-bed slopes with small gradients, weathered rocks, hard soil sand lands, road side slopes, mines, reservoir areas and barren lands, and has the following defects: the places with stable side slope, slight scouring of the slope surface and large slope gradient are not suitable for the areas soaked in water for a long time.

In summary, the soil replacement vegetation slope is often used in the fields such as the rocky slope, the weathered rock and the hard soil sand, but is not suitable for the places with large slope.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides a measure for ecological slope protection of bermuda grass on a steep slope and a preparation method of anti-steep plant concrete, and aims to solve the problem that the survival rate of plant seeds after sprouting on the steep slope is low, so that the soil dressing plant slope protection technology cannot be applied to the steep slope.

In order to achieve the purpose, the invention adopts the specific scheme that: a preparation method of steep-resistant plant-growing concrete comprises the following steps:

s1. stirring and mixing the cement, the pulverized coal dust and the coarse aggregate uniformly to obtain a first mixture;

s2, stirring and mixing water, a water reducing agent, silica fume, straw powder and a binder uniformly to obtain a second mixture;

s3. adding the first mixture into the second mixture, stirring and mixing to obtain a third mixture;

s4. stirring the third mixture, adding Bermuda grass seed and liquid rosin, placing into a mold frame, solidifying and molding to obtain porous anti-steep green concrete, and solidifying the liquid rosin at the inner edge of each hole to form a ring-shaped protective film.

As a further optimization of the above technical solution: the weight ratio of the water to the cement is 0.33, the weight of the silica fume is 5% of that of the cement, and the weight of the straw powder is 2% of that of the cement.

As a further optimization of the above technical solution: the target porosity of the steep resistant green concrete is 28%.

As a further optimization of the above technical solution: hydrogenated rosin methyl ester was also added to the third mixture in said s3.

As a further optimization of the above technical solution: the cement is low-alkali sulphoaluminate cement.

A measure for ecological slope protection of a steep bermuda grass comprises the following steps:

step 1: arranging a slope surface, and mounting a plurality of mutually adjacent moulds on the slope surface;

step 2: covering the slope with base layer concrete with the thickness of 30cm, and bypassing the mould during covering;

and step 3: after the base concrete is solidified, taking down the mould to form a mould groove at the position of each mould before the slope surface;

and 4, step 4: placing the die frames in the die grooves, and connecting and erecting two adjacent die frames in the same row through connecting rods;

and 5: each mould frame positioned on the same column of the edge of the slope is connected with an output shaft of a motor, so that the motor can drive the mould frames in the same row to rotate along the circumferential direction of the mould frames, and the mould frames can rotate to the horizontal position or the position parallel to the slope in the mould groove;

step 6: the mold frame is rotated to a position parallel to the slope surface in the daytime to enable the bermudagrass to fully receive illumination, and the mold frame is rotated to a horizontal position at night to ensure that moisture and nutrients in the steep-resistant plant concrete in the mold frame are uniformly distributed, so that the bermudagrass can fully absorb the moisture and nutrients.

As a further optimization of the above technical solution: the top of the slope is provided with a solar cell panel, and the motor is powered by the solar cell panel.

As a further optimization of the above technical solution: and 4, reinforcing the steep-resistant plant-growing concrete in the mould frame by using rivets.

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

1) the liquid rosin is added into the steepness-resistant plant concrete, and the liquid rosin is cured at the inner edge of each hole of the steepness-resistant plant concrete with the porous structure to form an annular protective film;

2) firstly, paving a layer of base concrete on a slope surface, arranging a mould groove on the base concrete, then placing a mould frame filled with anti-steep type planting concrete into the mould groove, connecting adjacent mould frames through a connecting rod, driving the mould frames in the same row through one or two motors so that the mould frames can rotate to a horizontal position or a position parallel to the slope surface in the mould groove, rotating the mould frames to a position parallel to the slope surface in the daytime to enable the bermuda grass to fully receive illumination, rotating the mould frames to the horizontal position at night, preventing the steep slope from enabling excessive moisture and nutrients in the anti-steep type planting concrete to incline towards the ground direction, further ensuring that the moisture and nutrients are uniformly distributed in the anti-steep type planting concrete, enabling the bermuda grass to be fully absorbed, and further ensuring the survival rate of the bermuda grass;

3) the solar cell panel is electrically connected with the motor through the controller, so that electric power is provided for the motor;

4) the invention solves the problem that the survival rate of the plant seeds after germination is lower when the slope angle of the side slope is larger, and simultaneously has the effects of protecting the slope, greening and the like, is implemented on a large slope angle and a steep slope, improves the survival rate of the plant seeds after germination, ensures that the slope protection of the alien soil plant plants is not limited by the slope angle, greatly improves the applicability and the practicability of the slope protection of the alien soil plant plants, and has great significance for the development of the industry.

Drawings

FIG. 1 is a graph showing the relationship between the survival rate of bermuda grass and the slope angle of the present invention;

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

FIG. 3 is a schematic view of the ramp of the present invention;

FIG. 4 is a schematic view of the mold frame of the present invention in a horizontal position;

FIG. 5 is a schematic view of the mold frame of the present invention in a position parallel to the sloping surface;

FIG. 6 is a table of the steep resistant green concrete mix of the present invention;

the labels in the figure are: 1. base layer concrete, 2, mould groove, 3, mould frame, 4, motor, 5, connecting rod, 6, solar cell panel.

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.

The soil dressing plant slope protection needs to be prepared before implementation, for example, a proper grass seed is selected, how to allow grass to survive under an alkaline coagulation condition, a mixing ratio of cement, how to accelerate a biological cycle of plants and the like. According to the needs of ecological slope protection, slope protection plants needing to be selected can bear the influence of external temperature and humidity on plant growth, plants capable of continuously growing in four seasons are selected, slope water and soil can be stabilized all the year round, and plants which are critical to the environment are preferably not selected. The bermudagrass is a low herbaceous plant, has thin and tough stems, is very long in creeping ground at the lower part, has very strong root stem creeping force, is widely paved on the ground, is a good dike-reinforcing and soil-retaining plant, and is commonly used for paving bermudagrass lawns or court. The bermuda grass has developed root system and large root quantity, is a good water and soil conservation plant, and therefore, various characteristics of the bermuda grass meet the requirements of people, so that the slope protection plant selected by people is the bermuda grass.

After selecting a proper slope protection plant, the influence of the plant concrete with different proportions on the survival rate of the bermuda grass is determined through experiments, as shown in fig. 6:

code No. a1:

the grain diameter is 16-20 mm; the water-cement ratio is 0.33; water 66.46; 191.32 cement; coarse aggregate 1568.0; 10.07 parts of silica fume; 1.62 parts of a water reducing agent; 2.01 of a binder;

code No. a 2:

the grain diameter is 20-25 mm; the water-cement ratio is 0.33; water 70.49; 202.93 cement; coarse aggregate 1531.7; 10.68 parts of silica fume; 1.72 parts of water reducing agent; 2.14 parts of a binder;

code No. a3:

the grain diameter is 25-30 mm; the water-cement ratio is 0.33; water 73.44; 211.42 cement; coarse aggregate 1489.6; 11.13 parts of silica fume; 1.80 parts of a water reducing agent; 2.23 parts of a binder;

the cement with the number A is common portland cement.

Number B1:

the grain diameter is 16-20 mm; the water-cement ratio is 0.33; water 66.46; 188.22 cement; coarse aggregate 1568.0; 10.07 parts of silica fume; 1.62 parts of a water reducing agent; 2.01 of a binder; straw powder 3.7644;

number B2:

the grain diameter is 20-25 mm; the water-cement ratio is 0.33; water 70.49; 199.63 cement; coarse aggregate 1531.7; 10.68 parts of silica fume; 1.72 parts of water reducing agent; 2.14 parts of a binder; straw powder 3.9926;

number B3:

the grain diameter is 25-30 mm; the water-cement ratio is 0.33; water 73.44; 207.99 cement; coarse aggregate 1489.6; 11.13 parts of silica fume; 1.80 parts of a water reducing agent; 2.23 parts of a binder; straw powder 4.1598;

the cement with the number B is common silicate cement.

Number C1:

the grain diameter is 16-20 mm; the water-cement ratio is 0.33; 64.70 parts of water; 186.25 cement; coarse aggregate 1568.0; 9.80 parts of silica fume; 1.58 parts of a water reducing agent; 1.96 parts of a binder;

number C2:

the grain diameter is 20-25 mm; the water-cement ratio is 0.33; water 68.62; 192.55 cement; coarse aggregate 1531.7; 10.40 parts of silica fume; 1.68 parts of a water reducing agent; 2.08 parts of a binder;

number C3:

the grain diameter is 25-30 mm; the water-cement ratio is 0.33; water 71.49; 205.82 cement; coarse aggregate 1489.6; 10.83 parts of silica fume; 1.70 parts of a water reducing agent; 2.17 parts of a binder;

the cement of the above number C is low alkali sulfur chlorate cement.

Through the experiments, the results of the survival rates of the experimental bermuda grass are not greatly different, but the experimental results obtained by adopting the low-alkali sulphoaluminate cement in the experimental scheme with the number of C are more ideal, and finally, the PH value most suitable for the growth of the bermuda grass is found to be about 6-7. The experimental scheme also comprises common materials and a plurality of external admixtures for preparing the plant-growing concrete, such as the granulating agent, the peat soil, the humus soil, the slow-release compound fertilizer and the like, belongs to the preparation of the plant-growing concrete in the prior art, and is not within the scope of the creation point of the invention, so that the details are not repeated.

After that, a slope angle simulation experiment is carried out on the preparation scheme with the number C, as shown in fig. 1, although the slope angle has no significant influence on the germination rate of the bermuda grass seeds, the larger the slope angle is, the lower the survival rate of the bermuda grass after germination is, especially when the slope angle is greater than 60 degrees, the survival rate of the bermuda grass is obviously reduced, and the simulation experiment shows that when the slope angle is larger, the components which are absorbed by the bermuda grass and promote growth, such as moisture, nutrients and the like in concrete, have obvious deviation, namely the moisture and the nutrients are lost from high to low, the fertility of the concrete at a high position is low, the water and the soil are not easy to maintain, the growth of the bermuda grass is not easy, and finally the bermuda grass at the high position is not easy to survive:

example 1

A preparation method of steep-resistant plant-growing concrete comprises the following steps: the method comprises the following steps:

s1. placing low alkali sulfur chlorate cement 186.25, pulverized coal dust 200 and coarse aggregate 1568.0 with the grain diameter of 18mm into a stirrer to be stirred for 120s and uniformly mixed to obtain a first mixture;

s2, putting 64.70 parts of water, 1.58 parts of water reducing agent, 9.80 parts of silica fume, 3.72 parts of straw powder and 1.96 parts of binder into a stirrer, stirring for 120s, and uniformly mixing to obtain a second mixture;

s3. adding the first mixture into the second mixture, stirring in a stirrer for 120s to obtain a third mixture;

s4. stirring the third mixture, adding Bermuda grass seed and liquid rosin 27.93, stirring for 300s, mixing, placing into the mold frame 3, solidifying and molding to obtain porous anti-steep planting concrete, and solidifying the liquid rosin at the inner edge of each hole to form annular protective film. On the slope surface of a large slope angle, the loss of nutrient water can be slowed down, and the high-level bermuda grass can absorb enough water and nutrients, so that the survival rate of the bermuda grass is improved, the permeability of soil is not influenced, and the soil can freely breathe.

The weight ratio (water-cement ratio) of the water to the cement is 0.33, the weight of the silica fume is 5% of that of the cement, the weight of the straw powder is 2% of that of the cement, the weight of the liquid rosin is 15% of that of the cement, and the target porosity of the anti-steep type vegetation concrete is 28%.

And a trace amount of hydrogenated rosin methyl ester is also added into the third mixture in the s3, and the hydrogenated rosin methyl ester is used as a tackifying material, so that the toughness and the bonding strength of the concrete can be improved, and the combination of the cured rosin and the concrete is ensured.

Example 2

s1. placing low alkali sulfur chlorate cement 197.55, pulverized coal dust 212.28 and coarse aggregate 1531.7 with the particle size of 23mm into a stirrer to be stirred for 120s and uniformly mixed to obtain a first mixture;

s2, putting 68.62 parts of water, 1.68 parts of a water reducing agent, 10.40 parts of silica fume, 3.95 parts of straw powder and 2.08 parts of a binder into a stirrer, stirring for 120s, and uniformly mixing to obtain a second mixture;

s4. stirring the third mixture, adding Bermuda grass seed and liquid rosin 30.23 while stirring, stirring for 300s, mixing uniformly, loading into the mould frame 3, solidifying and forming the steep-resistant planting concrete with porous structure, and solidifying the liquid rosin at the inner edge of each hole to form an annular protective film, wherein when the steep-resistant planting concrete inclines, the protective film has protective effect on the nutrient and water in the concrete, and prevents the nutrient and water from being lost too fast from high position. On the slope surface of a large slope angle, the loss of nutrient water can be slowed down, and the high-level bermuda grass can absorb enough water and nutrients, so that the survival rate of the bermuda grass is improved, the permeability of soil is not influenced, and the soil can freely breathe.

Example 3

s1. mixing 205.82 of low alkali sulfur chlorate cement, 205.2 of pulverized coal dust and 1489.6 of coarse aggregate with the particle size of 28mm in a mixer for 120s to obtain a first mixture;

s2, putting 71.49 water, 1.70 water reducing agent, 10.83 silica fume, 4.215 straw powder and 2.17 binder into a stirrer, stirring for 120s, and uniformly mixing to obtain a second mixture;

s4. stirring the third mixture, adding Bermuda grass seed and liquid rosin 31.72 while stirring, stirring for 300s, mixing uniformly, putting into the mould frame 3, solidifying and forming the steep-resistant planting concrete with porous structure, and solidifying the liquid rosin at the inner edge of each hole to form an annular protective film, wherein when the steep-resistant planting concrete inclines, the protective film has protective effect on the nutrient and water in the concrete, and prevents the nutrient and water from being lost too fast from high position. On the slope surface of a large slope angle, the loss of nutrient water can be slowed down, and the high-level bermuda grass can absorb enough water and nutrients, so that the survival rate of the bermuda grass is improved, the permeability of soil is not influenced, and the soil can freely breathe.

Hydrogenated rosin methyl ester is also added into the third mixture in the s3, and the hydrogenated rosin methyl ester is used as a tackifying material, so that the toughness and the bonding strength of the concrete can be improved, and the combination of the cured rosin and the concrete can be ensured.

Although the steep-resistant planting concrete can slow down the loss of water and nutrients, on a steep slope surface, because the steep-resistant planting concrete is in an inclined state for a long time, the water and the nutrients in the steep-resistant planting concrete can still deviate, and the growth of the high-position bermuda grass is influenced.

Therefore, a measure for ecological slope protection of the steep bermuda grass is provided, which comprises the following steps:

step 1: arranging a slope surface, mounting a plurality of mutually adjacent moulds on the slope surface, and uniformly distributing the moulds on the slope surface according to a grid shape;

step 2: paving base layer concrete 1 with the thickness of 30cm on the slope surface, and bypassing the mould when covering;

and step 3: after the base layer concrete 1 is solidified, taking down the mould to form a mould groove 2 at the position of each mould before the slope surface;

and 4, step 4: placing the mold frames 3 in the mold grooves 2, and connecting and erecting two adjacent mold frames 3 in the same row through connecting rods 5, wherein the erecting can be that a support frame, a hanger frame, a bracket and the like are arranged in the mold grooves 2 to erect the mold frames 3 in the mold grooves 2, so that the mold frames 3 can rotate conveniently;

and 5: each mould frame 3 positioned on the same column of the slope surface edge is connected with an output shaft of a motor 4, so that the motor 4 can drive the mould frames 3 in the same row to rotate along the circumferential direction of the mould frames 3, the mould frames 3 can rotate in the mould groove 2 to the horizontal position or the position parallel to the slope surface, and a plurality of motors 4 can be arranged in the same row according to the actual slope surface size, namely, the motors 4 are arranged on two sides of the same row, one motor 4 drives one half of the mould frames 3 in the same row to rotate, and the other motor 4 drives the other half of the mould frames 3 in the same row to rotate;

step 6: rotate mould frame 3 to the position parallel with domatic daytime, make the cynodon dactylon fully receive the illumination, rotate mould frame 3 to horizontal position night, guarantee that the moisture nutrient distribution in the steep type vegetation concrete in mould frame 3 is even, make the cynodon dacon fully absorb moisture nutrient, and then the survival rate of the improvement cynodon dacon of very big degree.

The top of the slope is provided with a solar cell panel 6, and the motor 4 is powered by the solar cell panel 6.

In the step 4, the anti-steep type vegetation concrete in the mold frame 3 is reinforced by the rivet, so that the anti-steep type vegetation concrete is firmly fixed in the mold frame 3, and the situation that the anti-steep type vegetation concrete falls out of the mold frame 3 due to the fact that the mold frame 3 moves and is further inclined is avoided.

Finally, the bermuda grass is parallel to the slope surface in the daytime, the nutrient and moisture shift slowly under the action of the steep-resistant planting concrete, the bermuda grass is ensured to fully receive illumination, the bermuda grass rotates to the horizontal position at night, the high-level nutrient and moisture loss of the steep-resistant planting concrete caused by a large slope angle is avoided, the bermuda grass is ensured to fully absorb the moisture and the nutrients, the survival rate of the bermuda grass in the environment of the large slope angle is greatly improved, and the beautifying and greening effects are good.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A preparation method of steep-resistant plant-growing concrete is characterized by comprising the following steps: the method comprises the following steps:

s4. stirring the third mixture, adding Bermuda grass seed and liquid rosin, loading into a mold frame (3), solidifying and molding to obtain porous plant concrete, and solidifying the liquid rosin at the inner edge of each hole to form annular protective film.

2. The method for preparing a steep resistant green concrete according to claim 1, wherein: the weight ratio of the water to the cement is 0.33, the weight of the silica fume is 5% of that of the cement, and the weight of the straw powder is 2% of that of the cement.

3. The method for preparing a steep resistant green concrete according to claim 1, wherein: the target porosity of the steep resistant green concrete is 28%.

4. The method for preparing a steep resistant green concrete according to claim 1, wherein: hydrogenated rosin methyl ester was also added to the third mixture in said s3.

5. The method for preparing a steep resistant green concrete according to claim 1, wherein: the cement is low-alkali sulphoaluminate cement.

6. A measure for ecological slope protection of abrupt slope bermuda grass is characterized in that: the method comprises the following steps:

step 2: covering a base layer concrete (1) with the thickness of 30cm on the slope surface, and bypassing the mould during covering;

and step 3: after the base layer concrete (1) is solidified, taking down the mould to form a mould groove (2) at the position of each mould before the slope surface;

and 4, step 4: placing the mold frames (3) in the mold grooves (2), and connecting and erecting two adjacent mold frames (3) in the same row through connecting rods (5);

and 5: connecting each mould frame (3) positioned on the same column of the edge of the slope surface with an output shaft of a motor (4), so that the motor (4) can drive the mould frames (3) in the same row to rotate along the circumferential direction of the mould frames, and the mould frames (3) can rotate to the horizontal position or the position parallel to the slope surface in the mould groove (2);

step 6: the mould frame (3) is rotated to a position parallel to the slope surface in the daytime to enable the bermuda grass to fully receive illumination, the mould frame (3) is rotated to a horizontal position at night to ensure that moisture and nutrients in the steep resistant plant concrete in the mould frame (3) are uniformly distributed, and the bermuda grass is enabled to fully absorb the moisture and nutrients.

7. The measure for ecological slope protection of steep bermuda grass according to claim 6, wherein: the solar energy battery board (6) is arranged at the top of the slope, and the motor (4) is powered by the solar energy battery board (6).

8. A measure for ecological slope protection of bermuda grass on a steep slope as claimed in claim 1, wherein: and in the step 4, the anti-steep type vegetation concrete in the mould frame (3) is reinforced by rivets.