Dry spraying and wet spraying combined vegetation concrete ecological restoration method for high and steep slope

Abstract

The invention belongs to the field of ecological restoration of high and steep side slopes, and particularly relates to a dry spraying and wet spraying combined vegetation concrete ecological restoration method for high and steep side slopes, which comprises the following steps: S1, building an ecological restoration system, the ecological restoration system comprises a data acquisition module, a data identification module, a data matching module, a scheme matching module, a scheme analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module. S2, slope data of different gradients and vegetation concrete ecological restoration data are collected through a historical data collection module, and the collected historical data are recognized through a data classification module. And timely ecological restoration is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of ecological restoration of high and steep slopes, and in particular to a vegetation concrete ecological restoration method for high and steep slopes that combines dry and wet spraying. Background Art

[0002] The significance of ecological restoration of steep slopes is to protect the ecological environment, improve engineering safety, and promote sustainable development. The ecological restoration of steep slopes is an indispensable part of engineering construction, which aims to achieve a perfect combination of ecology and engineering. By implementing ecological restoration measures, slope vegetation can be restored, soil erosion can be prevented, and the ecological environment can be protected. This not only helps to improve the natural ecological environment, but also improves the safety of the project, reduces the risk of soil erosion, and ensures the safety of the project;

[0003] In the existing technology, it is impossible to formulate a restoration plan in time when performing ecological restoration on different high and steep slopes. Therefore, we proposed a vegetation concrete ecological restoration method combining dry spraying and wet spraying for high and steep slopes to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming in the prior art that a restoration plan cannot be formulated in time when ecological restoration is performed on different high and steep slopes, and to propose a vegetation concrete ecological restoration method for high and steep slopes that combines dry spraying and wet spraying.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] The vegetation concrete ecological restoration method for high and steep slopes combined with dry and wet spraying includes the following steps:

[0007] S1. Build an ecological restoration system, which includes a data acquisition module, a data identification module, a data matching module, a solution matching module, a solution analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module;

[0008] S2. Slope data of different slopes and vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module;

[0009] S3, collecting high and steep slope data through the data collection module, identifying the collected data through the data identification module, setting this data as A, matching the data A with the high and steep slope historical data stored in the data storage module through the data matching module, and extracting the vegetation concrete ecological restoration data corresponding to the pair of data after successful matching;

[0010] S4. The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes by combining dry and wet spraying according to the historical vegetation concrete ecological restoration data and the current high steep slope data;

[0011] S5. Analyze and optimize the ecological restoration plan through the plan analysis module, and execute the plan through the execution module;

[0012] S6. The ecological conditions in different time periods after the implementation of the ecological restoration plan are predicted through the stage prediction module, the actual ecological conditions are monitored through the monitoring feedback module, and the effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect;

[0013] S7. If there is a difference between the predicted ecological situation and the actually monitored ecological situation, the difference is extracted by the difference extraction module and stored by the storage module.

[0014] Preferably, in S1, the data acquisition module is connected to the data identification module, the data identification module is connected to the data matching module, the data matching module is connected to the solution matching module, the solution matching module is connected to the solution analysis module, the solution analysis module is connected to the execution module, and the execution module is connected to the monitoring feedback module and the stage prediction module.

[0015] Preferably, the stage prediction module and the monitoring feedback module are both connected to the effect judgment module, the effect judgment module is connected to the difference extraction module, and the difference extraction module is connected to the storage module.

[0016] Preferably, in S3, the elevation, slope and slope curve of the high and steep slope are collected by a total station, and the soil, water quality and plant data around the high and steep slope are collected by field survey.

[0017] Preferably, in S4, the vegetation concrete ecological restoration plan for high and steep slopes using a combination of dry and wet spraying includes a base layer construction plan, a surface layer construction plan and a protective layer construction plan. The surface layer is constructed using a dry spraying machine, and the base layer and protective layer are constructed using a wet spraying machine.

[0018] Preferably, the base layer includes soil, cement, tree fiber, organic material, habitat substrate modifier, polyvinyl alcohol, fly ash, and coated compound fertilizer; the surface layer includes soil, cement, tree fiber, organic material, habitat substrate modifier, fly ash, and coated compound fertilizer; the protective layer includes pure tree fiber and polyvinyl alcohol, shrub seeds are mixed into the base layer, and herb seeds are mixed into the surface layer.

[0019] Preferably, the base construction is specifically as follows: before spraying, check again whether the loose soil, grass, tree roots and other debris on the slope are cleaned up, spray the slope with water after confirmation, and then conduct a trial spray test to adjust the water-cement ratio before spraying.

[0020] Preferably, the spraying thickness of the base layer is 8 to 9 cm; when the spraying operation starts, air should be supplied first, then the machine should be turned on, and then the material should be fed; control measures: the base layer sprayed concrete can be sprayed to the designed thickness at one time without layered spraying.

[0021] Preferably, during the spraying process, the distance between the nozzle and the slope surface is controlled between 0.6m-1.0m, and the maximum inclination angle is 1-10°; during the spraying, the output pressure of the spray head is 0.1-1MPa; the spraying is carried out from top to bottom, first spraying the concave part and then the convex part; the spraying movement adopts an "S" shape or spiral movement.

[0022] Preferably, the construction of the protective layer is as follows: the protective layer is sprayed within 3-4 hours after the completion of the base construction, and the spraying thickness is 1-2 cm.

[0023] In the present invention, the beneficial effects of the vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying are as follows:

[0024] The slope data of different slopes and the vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module; the high and steep slope data are collected through the data collection module, and the collected data are identified through the data identification module. This data is set as A, and the data A is matched with the high and steep slope historical data stored in the data storage module through the data matching module. After the match is successful, the vegetation concrete ecological restoration data corresponding to the pair of data are extracted;

[0025] The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes that combines dry and wet spraying based on the historical vegetation concrete ecological restoration data and the current high steep slope data. The formulated ecological restoration scheme is analyzed and optimized through the scheme analysis module, and the formulated scheme is executed through the execution module.

[0026] The stage prediction module predicts the ecological conditions in different time periods after the implementation of the ecological restoration plan, and the monitoring feedback module monitors the actual ecological conditions. The effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect. If there is a difference between the predicted ecological conditions and the actual monitored ecological conditions;

[0027] The present invention collects data on high and steep slopes, matches ecological restoration plans according to the collected data, and facilitates timely ecological restoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a block diagram of the ecological restoration system for the vegetation concrete ecological restoration method for high and steep slopes using a combination of dry and wet spraying proposed by the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Embodiment 1

[0031] Reference Figure 1 The ecological restoration method of vegetation concrete using dry and wet spraying combined with high and steep slopes includes the following steps:

[0032] S1. Build an ecological restoration system, which includes a data acquisition module, a data identification module, a data matching module, a solution matching module, a solution analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module;

[0033] S2. Slope data of different slopes and vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module;

[0034] S3, collecting high and steep slope data through the data collection module, identifying the collected data through the data identification module, setting this data as A, matching the data A with the high and steep slope historical data stored in the data storage module through the data matching module, and extracting the vegetation concrete ecological restoration data corresponding to the pair of data after successful matching;

[0035] S4. The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes by combining dry and wet spraying according to the historical vegetation concrete ecological restoration data and the current high steep slope data;

[0036] S5. Analyze and optimize the ecological restoration plan through the plan analysis module, and execute the plan through the execution module;

[0037] S6. The ecological conditions in different time periods after the implementation of the ecological restoration plan are predicted through the stage prediction module, the actual ecological conditions are monitored through the monitoring feedback module, and the effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect;

[0038] S7. If there is a difference between the predicted ecological situation and the actually monitored ecological situation, the difference is extracted by the difference extraction module and stored by the storage module.

[0039] In this embodiment, in S1, the data acquisition module is connected to the data identification module, the data identification module is connected to the data matching module, the data matching module is connected to the solution matching module, the solution matching module is connected to the solution analysis module, the solution analysis module is connected to the execution module, and the execution module is connected to the monitoring feedback module and the stage prediction module.

[0040] In this embodiment, the stage prediction module and the monitoring feedback module are both connected to the effect judgment module, the effect judgment module is connected to the difference extraction module, and the difference extraction module is connected to the storage module.

[0041] In this embodiment, in S3, the elevation, slope and slope curve of the high and steep slope are collected by a total station, and the soil, water quality and plant data around the high and steep slope are collected by field survey.

[0042] In this embodiment, in S4, the vegetation concrete ecological restoration plan for high and steep slopes using a combination of dry and wet spraying includes a base layer construction plan, a surface layer construction plan and a protective layer construction plan. The surface layer is constructed using a dry spraying machine, and the base layer and protective layer are constructed using a wet spraying machine.

[0043] In this embodiment, the base layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, polyvinyl alcohol, fly ash, and coated compound fertilizer; the surface layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, fly ash, and coated compound fertilizer; the protective layer includes pure wood fiber and polyvinyl alcohol, shrub seeds are mixed into the base layer, and herb seeds are mixed into the surface layer.

[0044] In this embodiment, the base construction is specifically as follows: before spraying, check again whether the loose soil, grass, tree roots and other debris on the slope surface are cleaned up. After confirmation, spray the slope surface with water, and then conduct a trial spray test to adjust the water-cement ratio before spraying construction.

[0045] In this embodiment, the spraying thickness of the base layer is 8 cm; when the spraying operation starts, air should be supplied first, then the machine should be turned on, and then the material should be fed; control measures: the base layer sprayed concrete can be sprayed to the designed thickness at one time without layered spraying.

[0046] In this embodiment, during the spraying process, the distance between the nozzle and the slope surface is controlled between 0.6m and the maximum inclination angle is 1°; during the spraying, the output pressure of the spray head is 0.1MPa; the spraying is carried out from top to bottom, first spraying the concave part and then the convex part; the spraying movement adopts an "S" shape or spiral movement.

[0047] In this embodiment, the protective layer construction is specifically as follows: the protective layer is sprayed within 3 hours after the base construction is completed, and the spraying thickness is 1 cm.

[0048] Embodiment 2

[0049] The vegetation concrete ecological restoration method for high and steep slopes combined with dry and wet spraying includes the following steps:

[0050] S1. Build an ecological restoration system, which includes a data acquisition module, a data identification module, a data matching module, a solution matching module, a solution analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module;

[0051] S2. Slope data of different slopes and vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module;

[0052] S3, collecting high and steep slope data through the data collection module, identifying the collected data through the data identification module, setting this data as A, matching the data A with the high and steep slope historical data stored in the data storage module through the data matching module, and extracting the vegetation concrete ecological restoration data corresponding to the pair of data after successful matching;

[0053] S4. The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes by combining dry and wet spraying according to the historical vegetation concrete ecological restoration data and the current high steep slope data;

[0054] S5. Analyze and optimize the ecological restoration plan through the plan analysis module, and execute the plan through the execution module;

[0055] S6. The ecological conditions in different time periods after the implementation of the ecological restoration plan are predicted through the stage prediction module, the actual ecological conditions are monitored through the monitoring feedback module, and the effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect;

[0056] S7. If there is a difference between the predicted ecological situation and the actually monitored ecological situation, the difference is extracted by the difference extraction module and stored by the storage module.

[0057] In this embodiment, in S1, the data acquisition module is connected to the data identification module, the data identification module is connected to the data matching module, the data matching module is connected to the solution matching module, the solution matching module is connected to the solution analysis module, the solution analysis module is connected to the execution module, and the execution module is connected to the monitoring feedback module and the stage prediction module.

[0058] In this embodiment, the stage prediction module and the monitoring feedback module are both connected to the effect judgment module, the effect judgment module is connected to the difference extraction module, and the difference extraction module is connected to the storage module.

[0059] In this embodiment, in S3, the elevation, slope and slope curve of the high and steep slope are collected by a total station, and the soil, water quality and plant data around the high and steep slope are collected by field survey.

[0060] In this embodiment, in S4, the vegetation concrete ecological restoration plan for high and steep slopes using a combination of dry and wet spraying includes a base layer construction plan, a surface layer construction plan and a protective layer construction plan. The surface layer is constructed using a dry spraying machine, and the base layer and protective layer are constructed using a wet spraying machine.

[0061] In this embodiment, the base layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, polyvinyl alcohol, fly ash, and coated compound fertilizer; the surface layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, fly ash, and coated compound fertilizer; the protective layer includes pure wood fiber and polyvinyl alcohol, shrub seeds are mixed into the base layer, and herb seeds are mixed into the surface layer.

[0062] In this embodiment, the base construction is specifically as follows: before spraying, check again whether the loose soil, grass, tree roots and other debris on the slope surface are cleaned up. After confirmation, spray the slope surface with water, and then conduct a trial spray test to adjust the water-cement ratio before spraying construction.

[0063] In this embodiment, the spraying thickness of the base layer is 8.5 cm; when the spraying operation starts, air should be supplied first, then the machine should be turned on, and then the material should be fed; control measures: the base layer sprayed concrete can be sprayed to the designed thickness at one time without layered spraying.

[0064] In this embodiment, during the spraying process, the distance between the nozzle and the slope surface is controlled between 0.8m and the maximum inclination angle is 5°; during the spraying, the output pressure of the spray head is 0.5MPa; the spraying is carried out from top to bottom, first spraying the concave part and then the convex part; the spraying movement adopts an "S" shape or spiral movement.

[0065] In this embodiment, the protective layer construction is specifically as follows: the protective layer is sprayed within 3.5 hours after the base construction is completed, and the spraying thickness is 1.5 cm.

[0066] Embodiment 3

[0067] The vegetation concrete ecological restoration method for high and steep slopes combined with dry and wet spraying includes the following steps:

[0068] S1. Build an ecological restoration system, which includes a data acquisition module, a data identification module, a data matching module, a solution matching module, a solution analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module;

[0069] S2. Slope data of different slopes and vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module;

[0070] S3, collecting high and steep slope data through the data collection module, identifying the collected data through the data identification module, setting this data as A, matching the data A with the high and steep slope historical data stored in the data storage module through the data matching module, and extracting the vegetation concrete ecological restoration data corresponding to the pair of data after successful matching;

[0071] S4. The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes by combining dry and wet spraying according to the historical vegetation concrete ecological restoration data and the current high steep slope data;

[0072] S5. Analyze and optimize the ecological restoration plan through the plan analysis module, and execute the plan through the execution module;

[0073] S6. The ecological conditions in different time periods after the implementation of the ecological restoration plan are predicted through the stage prediction module, the actual ecological conditions are monitored through the monitoring feedback module, and the effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect;

[0074] S7. If there is a difference between the predicted ecological situation and the actually monitored ecological situation, the difference is extracted by the difference extraction module and stored by the storage module.

[0075] In this embodiment, in S1, the data acquisition module is connected to the data identification module, the data identification module is connected to the data matching module, the data matching module is connected to the solution matching module, the solution matching module is connected to the solution analysis module, the solution analysis module is connected to the execution module, and the execution module is connected to the monitoring feedback module and the stage prediction module.

[0076] In this embodiment, the stage prediction module and the monitoring feedback module are both connected to the effect judgment module, the effect judgment module is connected to the difference extraction module, and the difference extraction module is connected to the storage module.

[0077] In this embodiment, in S3, the elevation, slope and slope curve of the high and steep slope are collected by a total station, and the soil, water quality and plant data around the high and steep slope are collected by field survey.

[0078] In this embodiment, in S4, the vegetation concrete ecological restoration plan for high and steep slopes using a combination of dry and wet spraying includes a base layer construction plan, a surface layer construction plan and a protective layer construction plan. The surface layer is constructed using a dry spraying machine, and the base layer and protective layer are constructed using a wet spraying machine.

[0079] In this embodiment, the base layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, polyvinyl alcohol, fly ash, and coated compound fertilizer; the surface layer includes soil, cement, wood fiber, organic material, habitat substrate modifier, fly ash, and coated compound fertilizer; the protective layer includes pure wood fiber and polyvinyl alcohol, shrub seeds are mixed into the base layer, and herb seeds are mixed into the surface layer.

[0080] In this embodiment, the base construction is specifically as follows: before spraying, check again whether the loose soil, grass, tree roots and other debris on the slope surface are cleaned up. After confirmation, spray the slope surface with water, and then conduct a trial spray test to adjust the water-cement ratio before spraying construction.

[0081] In this embodiment, the spraying thickness of the base layer is 9 cm; when the spraying operation starts, air should be supplied first, then the machine should be turned on, and then the material should be fed; control measures: the base layer sprayed concrete can be sprayed to the designed thickness at one time without layered spraying.

[0082] In this embodiment, during the spraying process, the distance between the nozzle and the slope surface is controlled within 1.0m, and the maximum inclination angle is 10°; during the spraying, the output pressure of the spray head is 1MPa; the spraying is carried out from top to bottom, first spraying the concave part and then the convex part; the spraying movement adopts an "S" shape or spiral movement.

[0083] In this embodiment, the protective layer construction is specifically as follows: the protective layer is sprayed within 4 hours after the completion of the base construction, and the spraying thickness is 2 cm.

[0084] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vegetation concrete ecological restoration method for high and steep slopes using a combination of dry and wet spraying, characterized in that: The following steps are involved: S1. Build an ecological restoration system, which includes a data acquisition module, a data identification module, a data matching module, a solution matching module, a solution analysis module, an execution module, a monitoring feedback module, a stage prediction module, an effect judgment module, a difference extraction module, a storage module, a historical data acquisition module, a data classification module and a data storage module; S2. Slope data of different slopes and vegetation concrete ecological restoration data are collected through the historical data collection module, the collected historical data are identified through the data classification module, and the classified data are stored through the data storage module; S3, collecting high and steep slope data through the data collection module, identifying the collected data through the data identification module, setting this data as A, matching the data A with the high and steep slope historical data stored in the data storage module through the data matching module, and extracting the vegetation concrete ecological restoration data corresponding to the pair of data after successful matching; S4. The extracted vegetation concrete ecological restoration data is transmitted to the scheme matching module. The scheme matching module formulates a vegetation concrete ecological restoration scheme for high steep slopes by combining dry and wet spraying according to the historical vegetation concrete ecological restoration data and the current high steep slope data; S5. Analyze and optimize the ecological restoration plan through the plan analysis module, and execute the plan through the execution module; S6. The ecological conditions in different time periods after the implementation of the ecological restoration plan are predicted through the stage prediction module, the actual ecological conditions are monitored through the monitoring feedback module, and the effect judgment module compares the predicted ecological conditions with the actual monitored ecological conditions to judge the ecological restoration effect; S7. If there is a difference between the predicted ecological situation and the actually monitored ecological situation, the difference is extracted by the difference extraction module and stored by the storage module.

2. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 1 is characterized in that: In S1, the data acquisition module is connected to the data identification module, the data identification module is connected to the data matching module, the data matching module is connected to the solution matching module, the solution matching module is connected to the solution analysis module, the solution analysis module is connected to the execution module, and the execution module is connected to the monitoring feedback module and the stage prediction module.

3. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 2 is characterized in that: The stage prediction module and the monitoring feedback module are both connected to the effect judgment module, the effect judgment module is connected to the difference extraction module, and the difference extraction module is connected to the storage module.

4. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 3 is characterized in that: In S3, the elevation, slope and slope curve of the high and steep slope are collected by a total station, and the soil, water quality and plant data around the high and steep slope are collected by field survey.

5. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 4 is characterized in that: In S4, the vegetation concrete ecological restoration plan for high and steep slopes using a combination of dry and wet spraying includes a base layer construction plan, a surface layer construction plan and a protective layer construction plan. The surface layer is constructed using a dry spraying machine, and the base layer and protective layer are constructed using a wet spraying machine.

6. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 5 is characterized in that: The base layer includes soil, cement, tree fiber, organic material, habitat substrate modifier, polyvinyl alcohol, fly ash, and coated compound fertilizer; the surface layer includes soil, cement, tree fiber, organic material, habitat substrate modifier, fly ash, and coated compound fertilizer; the protective layer includes pure tree fiber and polyvinyl alcohol, shrub seeds are mixed into the base layer, and herb seeds are mixed into the surface layer.

7. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 6 is characterized in that: The base construction is specifically as follows: before spraying, check again whether the loose soil, grass, tree roots and other debris on the slope are cleaned up. After confirmation, spray the slope with water, and then conduct a trial spraying test to adjust the water-cement ratio before spraying construction.

8. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 7 is characterized in that: The spraying thickness of the base layer is 8 to 9 cm. When the spraying operation starts, air should be supplied first, then the machine should be turned on, and then the material should be fed. Control measures: the base layer sprayed concrete can be sprayed to the designed thickness at one time without the need for layered spraying.

9. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 8 is characterized in that: During the spraying process, the distance between the nozzle and the slope surface is controlled between 0.6m-1.0m, and the maximum inclination angle is 1-10°; during the spraying, the output pressure of the spray head is 0.1-1MPa; the spraying is carried out from top to bottom, first spraying the concave part and then the convex part; the spraying movement adopts "S" shape or spiral movement.

10. The vegetation concrete ecological restoration method for high and steep slopes by combining dry and wet spraying according to claim 9 is characterized in that: The specific construction of the protective layer is as follows: the protective layer is sprayed within 3-4 hours after the completion of the base construction, and the spraying thickness is 1-2cm.

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