CN107727833B - Simulation method and simulation device for ecological restoration of multifunctional stope slope - Google Patents
Simulation method and simulation device for ecological restoration of multifunctional stope slope Download PDFInfo
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Abstract
The simulation method and the device for the ecological restoration of the slope of the multifunctional stope can effectively simulate the conditions of different areas, different seasons, different types of mine slope terrains, different soils, different earthquake intensity, different planted vegetation and composite formation thereof, and the simulation method and the device solve the problems of lack of environmental ecological restoration systematic research of the slope of the strip mine in the prior art, consider the coupling among factors influencing the environmental ecological restoration and provide reference basis for the research of the slope environmental ecological restoration technology.
Description
Technical Field
The invention relates to a simulation method and a simulation device for ecological restoration of a multifunctional stope slope, and belongs to the technical field of environmental geotechnical engineering.
Background
Mineral resource development is a basic industry of China, and the demand for mineral resources is continuously increased along with the rapid development of national economy of China. At present, large open-pit mines in China enter deep mining, and high steep slopes as high as 300-400m and even 400-500m are formed. Most of the high-steep slopes of the strip mines are in critical stable states, mining blasting, earthquake and the like can damage the stability of the slopes, serious geological disasters such as landslide, debris flow and the like can be possibly caused, meanwhile, the exposed slopes also seriously damage the original ecological vegetation, and water-soil and ecological environment unbalance can be caused.
The ecological restoration method of the side slope environment is various, and relates to rock mechanics, geotechnical mechanics, geology, biology, soil science, fertilizer science, gardening science, grass industry, forestry, environmental ecology and the like. The ecological restoration of the side slope is extremely difficult due to the change of the ground morphology and the poor stability of the side slope caused by exploitation, so that the ecological restoration of the side slope not only solves the problem of reasonable selection of plant varieties, but also solves the problem of the stability of the slope before and after the ecological restoration of the side slope, and the development of the simulation device and the method for the ecological restoration of the side slope of the multifunctional stope has great significance.
At present, a simulation device for researching slope restoration is single in function, for example, a simulation device related to researching slope stability is designed only aiming at naked slope stability, a simulation device related to researching slope ecological restoration is designed only aiming at plant growth conditions, influence of plant growth on the slope stability is not considered, influence of slope sliding deformation, influence of ground temperature change caused by an underground goaf on plants and the like are not considered.
Aiming at the problems, a more valuable reference basis is provided for the research and development of the slope environment ecological restoration technology, the influence of various factors on the ecological restoration effect is comprehensively considered, and a multifunctional simulation device for stope slope ecological restoration is needed, so that the defects of time and labor waste, continuous change of mining conditions, uncontrollable weather factors, high cost and the like in field test are overcome, the test period is shortened, and the research progress is accelerated.
Disclosure of Invention
In order to solve the technical problems, the invention provides a method capable of effectively simulating the environmental ecological restoration mechanism, the stability of the slopes before and after the environmental ecological restoration, the water and soil loss, the change rule of soil nutrients, the growth rule of plants and the like under the conditions of different areas, different seasons, different mine slope terrains, different soils, different earthquake intensities, different planting vegetation and composite formation, solves the problems of the prior art that the environmental ecological restoration system of the strip mine slope is lack of research, and considers the coupling among factors influencing the environmental ecological restoration.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a simulation method for ecological restoration of a multifunctional stope slope comprises the following steps:
1) Stacking a side slope model: transporting a rock-soil body collected from a stope slope of an open pit mine to a slope mould device of a closed simulation laboratory, and piling up the rock-soil body into a slope model;
2) And (3) testing the stability of the early slope:
2a) And (3) rainfall test: the method comprises the steps of using a rainfall device to rainfall a side slope, using a three-dimensional digital speckle strain measurement system to monitor the displacement deformation rule of the side slope after rainfall, setting different rainfall, carrying out multiple experiments, and recording experimental data;
2b) Vibration test: inputting vibration waves to the side slope by using an analog earthquake vibration table, monitoring displacement deformation rules of the side slope in the vibration process and after vibration by using a three-dimensional digital speckle strain measurement system, setting different vibration coefficients, carrying out multiple experiments, and recording experimental data;
2c) Respectively adopting a method of rainfall before vibration and a method of rainfall after vibration, recording a plurality of groups of experimental data, and comparing to obtain mutual influence data of rainfall and vibration on a slope;
3) And (3) ecological restoration testing of the side slope: dividing a side slope model into a repair area and an original area, planting plants in the repair area, testing growth data of the plants under different temperatures, humidity, ground temperature and illumination, after a repair period is finished, performing rainfall, and comparing water and soil loss of the repair area and the original area;
4) And carrying out the test in the step 2) on the repaired area after the step 3) to obtain the parameters of the cohesive force, the soil strip weight and the soil intensity of the soil increased by the vegetation, and comparing the displacement data of the soil on the surface and the inside of the side slope under the rainfall and vibration effects before and after the repair to obtain the stability rule of the vegetation on the side slope.
According to the comparison data obtained in the step 3), when the newly increased biological dry weight of plant root systems in the side slope soil reaches 0.1-0.3kg per cubic meter, the side slope surface is washed by rainwater with the intensity of 60mm/h for 1 hour in three-field rainfall, and no damage phenomena such as scouring and collapsing are caused, and the repair is considered to be completed.
In the step 4), when the total displacement of the slope plane is more than 10cm or the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage, the slope ecological restoration experiment is proved to have larger influence on the stability of the slope, the ecological restoration design scheme cannot be adopted, and slope soil body reinforcement, slope cutting or vegetation replacement restoration adjustment can be performed until the displacement of the slope plane is less than 10cm and the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage.
In the step 3), the repairing period specifically includes: the planting period is half a year when the planted plants are herbaceous plants, and 2 years when the planted plants are woody plants.
The device comprises a closed simulation chamber, wherein a slope simulation box body is arranged in the closed simulation chamber, a vibrating table and a drain pipe are arranged below the slope simulation box body, and a lamp and a spray head are arranged at the upper part of the slope simulation box body; the rail is arranged on the ground of the closed simulation chambers at two sides of the slope simulation box body, the bottom of the traveling crane is matched with the rail and can move in the rail, and the rail at the upper part of the traveling crane spans the slope simulation box body and is provided with an electric hoist; two adjacent side surfaces of the slope simulation box body are transparent surfaces, and a three-dimensional digital speckle strain measurement system is arranged in a closed simulation chamber at the opposite position of the transparent surfaces.
The electric shading roller curtains are arranged on the shed roof and four sides of the closed simulation chamber, the temperature monitor, the illumination measuring instrument and the humidity detector are arranged on the ceiling of the closed simulation chamber, the water tank for supplying water to the spray head is arranged on the outer shed roof of the closed simulation chamber, and the door is arranged on the side wall of the closed simulation chamber.
The beneficial effects of the invention are as follows:
(1) And comprehensively analyzing the interaction between the slope stability and vegetation restoration, and providing a reference basis for the research of the slope environment ecological restoration technology.
(2) The test period is shortened, the research process is quickened, and the defects of high cost and uncontrollable effect caused by direct operation are avoided.
Drawings
Fig. 1: is a schematic diagram of the whole structure of a closed simulation chamber.
Fig. 2: is a schematic diagram of the internal structure of a closed simulation chamber.
Detailed Description
A simulation method for ecological restoration of a multifunctional stope slope comprises the following steps:
1) Stacking a side slope model: transporting a rock-soil body collected from a stope slope of an open pit mine to a slope mould device of a closed simulation laboratory, and piling up the rock-soil body into a slope model;
2) And (3) testing the stability of the early slope:
2a) And (3) rainfall test: the method comprises the steps of using a rainfall device to rainfall a side slope, using a three-dimensional digital speckle strain measurement system to monitor the displacement deformation rule of the side slope after rainfall, setting different rainfall, carrying out multiple experiments, and recording experimental data;
2b) Vibration test: inputting vibration waves to the side slope by using an analog earthquake vibration table, monitoring displacement deformation rules of the side slope in the vibration process and after vibration by using a three-dimensional digital speckle strain measurement system, setting different vibration coefficients, carrying out multiple experiments, and recording experimental data;
2c) And respectively adopting a method of firstly rainfall and then vibration and a method of firstly vibration and then rainfall, recording a plurality of groups of experimental data, and comparing to obtain the mutual influence data of rainfall and vibration on the slope.
3) And (3) ecological restoration testing of the side slope: dividing the side slope model into a repair area and an original area, planting plants in the repair area, testing growth data of the plants under different temperatures, humidity, ground temperature and illumination, after the repair period is finished, performing rainfall, and comparing water and soil loss of the repair area and the original area. When the new biological dry weight of plant root systems in the side slope soil reaches 0.1-0.3kg per cubic meter, and the three-field rainfall time is 1 hour and the intensity is 60mm/h, the side slope surface is flushed by rainwater, and no damage phenomena such as flushing, collapse and the like are caused, the repair is considered to be completed. The repair cycle is specifically: the planting period is half a year when the planted plants are herbaceous plants, and 2 years when the planted plants are woody plants.
4) And carrying out the test in the step 2) on the repaired area after the step 3) to obtain the parameters of the cohesive force, the soil strip weight and the soil intensity of the soil increased by the vegetation, and comparing the displacement data of the soil on the surface and the inside of the side slope under the rainfall and vibration effects before and after the repair to obtain the stability rule of the vegetation on the side slope. Different restoration vegetation and parameters can be found, and the influence on the slope stability is different, for example, the root system of the vegetation can improve the slope stability, and the slope stability can be reduced due to the increased wind load of the vegetation.
In the step 4), when the total displacement of the slope plane is more than 10cm or the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage, the slope ecological restoration experiment is proved to have larger influence on the stability of the slope, the ecological restoration design scheme cannot be adopted, and slope soil body reinforcement, slope cutting or vegetation replacement restoration adjustment can be performed until the displacement of the slope plane is less than 10cm and the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage.
The simulation device of the simulation method has the structure that: the device comprises a closed simulation chamber 1, wherein a slope simulation box body 2 is arranged in the closed simulation chamber 1, a vibrating table 3 and a drain pipe 4 are arranged below the slope simulation box body 2, and a lamp 5 and a spray head 6 are arranged at the upper part of the slope simulation box body 2; the rail 8 is arranged on the ground of the closed simulation chamber 1 at two sides of the slope simulation box body 2, the bottom of the traveling crane 7 is matched with the rail 8 and can move in the rail 8, and a transverse bar at the upper part of the traveling crane 7 spans the slope simulation box body 2 and is provided with an electric hoist; two adjacent side surfaces of the slope simulation box body 2 are transparent surfaces, and a three-dimensional digital speckle strain measurement system 9 is arranged in the closed simulation chamber 1 at the opposite position of the transparent surfaces. Wheels 16 are arranged at the bottom of the walking crane 7, the wheels 16 are matched with the rails 8, and two rails 8 which are parallel to each other are arranged on the ground of the closed simulation chamber 1.
The electric roller blind 10 is arranged on the shed roof and four sides of the closed simulation chamber 1, the temperature monitor 11, the illumination measuring instrument 12 and the humidity detecting instrument 13 are arranged on the ceiling of the closed simulation chamber 1, the water tank 17 for supplying water to the spray head 6 is arranged on the outer shed roof of the closed simulation chamber 1, and the door 14 is arranged on the side wall of the closed simulation chamber 1. The water tank 17 is provided with a flow-adjustable water pump 18, the output of the water tank 17 is connected with the spray head 6 after passing through a water pipe 19, the water pipe 19 is arranged at the upper part of the slope simulation box body 2 in parallel, and the spray head 6 is arranged in a matrix manner and is opposite to the slope simulation box body 2.
A temperature generator 15 is arranged in the closed simulation chamber 1, and the temperature generator 15 is used for adjusting the temperature of the soil body of the side slope, namely the ground temperature. The front end of the temperature generator 15 is connected with a blower 20, and the blower 20 corresponds to the position of the slope simulation box body 2. The side wall of the closed simulation chamber 1 is provided with a temperature and humidity generator 21 for adjusting the atmospheric temperature in the simulation chamber. An automatic control console 22 is further arranged in the closed simulation room 1, and the automatic control console 22 uniformly controls electrical devices in the closed simulation room 1 and stores experimental data.
The specific use is as follows: the closed simulation room 1 is built on the ground, a door 14 for access is arranged on the left side wall of the closed simulation room 1, a temperature and humidity generator 21 is arranged above the left side wall, the temperature and humidity generator 21 is connected with an automatic control console 22 through a circuit, and the temperature and humidity in the closed simulation room are adjusted according to instructions of the automatic control console.
The roof of the closed simulation chamber 1 is provided with an automatic water supplementing water tank 17 and an adjustable flow water pump 18, the automatic water supplementing water tank 17 is connected with the adjustable flow water pump 18 through a water pipe 19, the spray head 6 is arranged on the roof of the closed simulation chamber 1 at the corresponding position of the slope simulation box body 2, the spray head 6 is connected to the adjustable flow water pump 18 through the water pipe 19, the adjustable flow water pump 18 is connected with an automatic control console 22 through a circuit, and rainfall with different intensities is carried out according to instructions of the automatic control console 22.
The electric roller blind 10 is installed on the four walls and below the shed roof in the closed simulation room 1, the electric roller blind 10 is connected with the automatic control console 22 through a circuit, the halogen lamp 5 is specifically halogen lamp, the electric roller blind is installed on the shed roof and is connected with the automatic control console 22 through a circuit, and the illuminance in the closed simulation room is adjusted according to the instruction of the automatic control console 22.
The temperature monitor 11, the humidity monitor 13 and the illuminance measuring instrument 12 are arranged on the roof of the closed simulation room and are connected with the automatic control console 22 through circuits, and monitored data are transmitted to the automatic control console 22.
The vibration table 3 is installed on the ground of the closed simulation chamber 1 for performing seismic simulation. The vibration table 3 can be an electrohydraulic servo type simulated earthquake vibration table, and different vibration waves can be generated according to experimental requirements.
The slope simulation box body 2 is arranged on the vibrating table 3, wherein two adjacent side surfaces are transparent surfaces for mounting organic glass, and the two surfaces and the top surface of the slope are monitored by the three-dimensional digital speckle strain measurement system 9 to obtain slope displacement deformation data. The other two sides and the bottom surface are steel plates, reinforcing channel steel is arranged on the four sides, stability of the slope simulation box body in the test process is guaranteed, deformation of the sides is avoided, the slope simulation box body is piled up on one side of a slope angle of the slope, a drain pipe 4 is arranged, and rainwater flowing down along the slope during rainfall is discharged to the outside of the slope simulation box body. The water collecting tank 23 is arranged on the ground of the closed simulation chamber 1 at the outlet of the water discharging pipe 4, and water can be uniformly discharged through the water collecting tank 23.
The track 8 of the walking crane 7 is arranged on the ground of the closed simulation chamber 1, and the rock-soil body and other materials for manufacturing the slope model can be transported into the slope simulation box body 2 through the material transportation crane.
The temperature generator 15 is arranged on the wall at one side of the closed simulation chamber 1, the temperature generator 15 is connected with the automatic control console 22 through a circuit, different heat is generated according to instructions of the automatic control console 22, a round hole is formed in the side face of the side slope simulation box body 2 where the side slope tops of the side slopes are piled up, the blower 22 is arranged on the round hole, the blower 22 is connected with the temperature generator 15 through a pipeline, and heat generated by the temperature generator 15 can be conveyed into a rock-soil body below the slope surface through the pipeline by utilizing the blower 20.
Example 1
Slope stability test: and obtaining the influence of rainfall and earthquake on the slope stability.
The experimental device comprises a slope simulation box body, a three-dimensional digital speckle strain measurement system, a simulated earthquake vibrating table, a material transportation crane and a rainfall system. The height of the side slope of the simulated open-air iron ore is 2m, the slope angle is 60 degrees, the step height is 0.5m, the width of the working flat disc is 1m, the rainfall is heavy rain, the rainfall is 50mm, 70mm and 90mm, and the earthquake magnitude is 4, 5 and 6.
The test method comprises the following steps:
(1) Using a material transporting crane to transport a rock-soil body, and stacking 1 slope model;
(2) Setting up a three-dimensional digital speckle strain measurement system, so that 2 optical lenses of the system respectively vertically and horizontally face the slope surface of the side slope, and 1 optical lens vertically faces 1 side section;
(3) Rainfall is carried out on the side slope for 2 hours according to the rainfall of 50 mm;
(4) Starting a simulated earthquake vibrating table, and applying earthquake waves with the magnitude of 4 to the slope;
(5) And monitoring displacement deformation conditions of the side slopes before and after the earthquake recorded by the disease through a three-dimensional digital speckle strain measurement system.
(6) The experimental conditions are changed to be 50mm in rainfall, 5 in earthquake magnitude, 50mm in rainfall, 6 in earthquake magnitude, 70mm in rainfall, 4 in earthquake magnitude, 70mm in rainfall, 5 in earthquake magnitude, 70mm in rainfall, 6 in earthquake magnitude, 90mm in rainfall, 4 in earthquake magnitude, 90mm in rainfall, 5 in earthquake magnitude, 90mm in rainfall, 6 in earthquake magnitude, 8 groups of experiments in total, and 8 groups of experiments are performed according to the steps 1-5. Each group is performed separately, the first group is performed, the second group is performed after the slope structure is restored to the previous state, and so on.
(7) And comparing experimental results to obtain the influence rule of rainfall and earthquake on the slope stability. When the displacement of the slope plane in the whole experimental stage is smaller than 10cm, the slope is in a stable state, and ecological restoration can be performed; the planar displacement of the side slope in the whole experimental stage is more than 10cm and less than 30cm, so that the side slope can slip, and after simple reinforcement measures are carried out on the side slope, herbaceous plants with low cost are selected for ecological restoration; when the plane displacement of the side slope is greater than 30cm in the whole experimental stage, the side slope is in an extremely unstable state, and at the moment, the side slope is not suitable for ecological restoration immediately, and measures such as slope cutting treatment are needed, so that the side slope is in a stable state, and ecological restoration can be performed.
Example 2
Ecological restoration test (influence of climate and underground goaf nature on plant growth):
the experimental device comprises a slope simulation box body, a material transportation crane, a ground temperature regulation system, a temperature and humidity regulation system and a rainfall system. The slope height of the open pit coal mine is simulated to be 2m, the slope angle is 50 degrees, the step height is 0.5m, the width of the working flat disc is 1m, the planted plants are alfalfa and clover on the slope surface, the platforms are amorpha fruticosa, sea buckthorn, elm and locust, the climates of spring, summer and autumn in western region of Liaoning province are simulated, and the goats under the slope are spontaneous-burned, so that the temperature of rock and soil bodies under the slope surface is 30 ℃ throughout the year.
The test method comprises the following steps:
(1) Using a material transporting crane to transport a rock-soil body, and stacking 1 slope model;
(2) The temperature of the closed simulation chamber is regulated to be the average air temperature in spring, and plants are planted on the side slope;
(3) Starting a ground temperature control system to enable the temperature of the slope rock-soil body to reach the experimental design requirement;
(4) Rainfall is carried out according to the rainfall conditions in spring;
(5) Observing and recording the growth condition of various plants in spring for 1 month;
(6) According to weather conditions in summer and autumn, controlling the hygrothermograph rainfall of the closed simulation room;
(7) Observing and recording the growth conditions of various plants in summer and autumn for 1 month;
(8) After 3 months of growth period, the recorded data are compared and analyzed to find that alfalfa in herbaceous plants grows better than clover, amorpha fruticosa in shrubs grows better than sea buckthorn, and elm in arbor is better than locust, so that alfalfa, amorpha fruticosa and elm are used for slope repair.
(9) And (3) repeating the steps (1) - (7), wherein experimental results show that the alfalfa, the amorpha fruticosa and the elm grow well, and then the slope stability test after the slope ecological restoration is performed.
(10) Starting an analog earthquake vibrating table, applying earthquake load to the slope, gradually increasing earthquake magnitude, namely 4, 5 and 6, monitoring displacement deformation conditions of the slope before and after earthquake recorded by the disease through a three-dimensional digital speckle strain measurement system, and analyzing slope stability after ecological restoration. The result shows that when the earthquake magnitude is 6, the slope plane displacement is still smaller than 10cm, so the slope ecological restoration experimental scheme is successful.
Claims (6)
1. A simulation method for ecological restoration of a multifunctional stope slope comprises the following steps:
1) Stacking a side slope model: transporting a rock-soil body collected from a stope slope of an open pit mine to a slope mould device of a closed simulation laboratory, and piling up the rock-soil body into a slope model;
2) And (3) testing the stability of the early slope:
2a) And (3) rainfall test: the method comprises the steps of using a rainfall device to rainfall a side slope, using a three-dimensional digital speckle strain measurement system to monitor the displacement deformation rule of the side slope after rainfall, setting different rainfall, carrying out multiple experiments, and recording experimental data;
2b) Vibration test: inputting vibration waves to the side slope by using an analog earthquake vibration table, monitoring displacement deformation rules of the side slope in the vibration process and after vibration by using a three-dimensional digital speckle strain measurement system, setting different vibration coefficients, carrying out multiple experiments, and recording experimental data;
2c) Respectively adopting a method of rainfall before vibration and a method of rainfall after vibration, recording a plurality of groups of experimental data, and comparing to obtain mutual influence data of rainfall and vibration on a slope;
3) And (3) ecological restoration testing of the side slope: dividing a side slope model into a repair area and an original area, planting plants in the repair area, testing growth data of the plants under different temperatures, humidity, ground temperature and illumination, after a repair period is finished, performing rainfall, and comparing water and soil loss of the repair area and the original area;
4) And carrying out the test in the step 2) on the repaired area after the step 3) to obtain the parameters of the cohesive force, the soil strip weight and the soil intensity of the soil increased by the vegetation, and comparing the displacement data of the soil on the surface and the inside of the side slope under the rainfall and vibration effects before and after the repair to obtain the stability rule of the vegetation on the side slope.
2. The simulation method for ecological restoration of a multifunctional stope slope according to claim 1, wherein the simulation method comprises the following steps: according to the comparison data obtained in the step 3), when the newly increased biological dry weight of plant root systems in the side slope soil reaches 0.1-0.3kg per cubic meter, the side slope surface is washed by rainwater with the intensity of 60mm/h for 1 hour in three-field rainfall, and no damage phenomena such as scouring and collapsing are caused, and the repair is considered to be completed.
3. The simulation method for ecological restoration of a multifunctional stope slope according to claim 1, wherein the simulation method comprises the following steps: in the step 4), when the total displacement of the slope plane is more than 10cm or the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage, the slope ecological restoration experiment is proved to have larger influence on the stability of the slope, the ecological restoration design scheme cannot be adopted, and slope soil body reinforcement, slope cutting or vegetation replacement restoration adjustment can be performed until the displacement of the slope plane is less than 10cm and the displacement of the slope plane exceeds 5mm/d in one day in the whole experimental stage.
4. The simulation method for ecological restoration of a multifunctional stope slope according to claim 1, wherein the simulation method comprises the following steps: in the step 3), the repairing period specifically includes: the planting period is half a year when the planted plants are herbaceous plants, and 2 years when the planted plants are woody plants.
5. A simulation apparatus for performing the simulation method of claim 1, wherein: the device comprises a closed simulation chamber (1), wherein a slope simulation box body (2) is arranged in the closed simulation chamber (1), a vibrating table (3) and a drain pipe (4) are arranged below the slope simulation box body (2), and a lamp (5) and a spray head (6) are arranged at the upper part of the slope simulation box body (2); the rail (8) is arranged on the ground of the closed simulation chamber (1) at two sides of the slope simulation box body (2), the bottom of the walking crane (7) is matched with the rail (8) and can move in the rail (8), and the rail at the upper part of the walking crane (7) spans the slope simulation box body (2) and is provided with an electric hoist; two adjacent side surfaces of the slope simulation box body (2) are transparent surfaces, and a three-dimensional digital speckle strain measurement system (9) is arranged in a closed simulation chamber (1) at the opposite position of the transparent surfaces.
6. The simulation device of claim 5, wherein: the electric roller shutters (10) are arranged on the shed roof and four walls of the closed simulation chamber (1), the temperature monitor (11), the illumination measuring instrument (12) and the humidity detector (13) are arranged on the ceiling of the closed simulation chamber (1), the water tank (17) for supplying water to the spray head (6) is arranged on the outer shed roof of the closed simulation chamber (1), and the door (14) is arranged on the side wall of the closed simulation chamber (1).
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| CN110967469A (en) * | 2019-12-25 | 2020-04-07 | 河南理工大学 | Simulation test system suitable for ecological restoration of mine |
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| CN112179933A (en) * | 2020-09-27 | 2021-01-05 | 西京学院 | High and steep slope vegetation restoration test box |
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