CN110132833A - It is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision - Google Patents
It is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision Download PDFInfo
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- CN110132833A CN110132833A CN201910515642.8A CN201910515642A CN110132833A CN 110132833 A CN110132833 A CN 110132833A CN 201910515642 A CN201910515642 A CN 201910515642A CN 110132833 A CN110132833 A CN 110132833A
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Abstract
The invention discloses it is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision, external environmental factor simulation system including transparent and closed experimental box, for simulating external environment, for the real-time data acquisition system of real-time data collection and for monitor the outdoor scene dubbing system for testing tailing sample top surface form；Test data can be acquired in real time, and under the influence of studying the external factor such as temperature, humidity, wind speed, radiation, moisture evaporation rules in high-concentration tailings provide foundation to establish high-concentration tailings dehydration by evaporation theoretical model；It studies in high-concentration tailings drying process, the influence that generation, propagation law and the desciccation crack of surface cup shake evaporate tailing；During studying high-concentration tailings dehydration by evaporation, the changing rule of water content in sedimentary tailing, matric suction.
Description
Technical field
The present invention relates to mineral products fields, and in particular to it is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance
Experimental provision.
Background technique
Tailings Dam is the place for storing up tailing or other industrial residues.Through counting, there are more than 12000 seat tailings in China at present
Library, tailing heap storage has reached over ten billion ton, and is increased with annual 600000000 tons of rate.The stockpiling of a large amount of tailing waste things, not only accounts for
With a large amount of soil, environment is polluted, and frequently results in the disasters such as landslide, mud-rock flow, gives downstream the people's lives and property safety
It causes serious injury, far-reaching influence is generated to the ecological environment on periphery.
Since Tailings Pulp concentration is low in traditional tailings impoundment method, water content is high, not only seriously polluted to underground water,
And dam body is made to be chronically at the higher state of saturation, the stability difference and earthquake liquefaction risk of dam body are high, Yi Fasheng dam body
The disasters such as landslide, mud-rock flow；It and include in the prior art that Chinese Academy of Sciences's Cold and drought Region environment is ground with engineering about correlative study
Study carefully institute: one kind can dynamic testing soil dehumidification/frozen water content variation characteristic pilot system (patent publication No. CN
106370816 B), which can be used for soil pattern and realizes dehydration and drying process under the conditions of the temperature of setting, it can also be used to
Pedotheque realizes cooling freezing process under the pressure condition of setting, and the automatic of soil pattern dynamic changing process may be implemented
Change real-time monitoring and acquisition.But the system does not account for the influence that illumination, humidity, wind speed, rainfall etc. are dehydrated soil evaporation,
Lack settling amount measurement and data acquisition device in soil body evaporation process, lacks soil deformation and crack in soil body evaporation process and expand
Open up monitoring device；Also such as Wuhan Inst. of Rock and Soil Mechanics, Chinese Academy of Sciences: the indoor simulation device of research soil evaporation feature
And its method (patent publication No. is 108459150 A of the CN) invention provides a kind of indoor simulation for studying soil evaporation feature
Devices and methods therefor understands fully the evaporation characteristics of soil to carry out indoor simulation evaporation test.But the device does not account for
The influence that humidity, wind speed, rainfall etc. are dehydrated soil evaporation lacks settling amount measurement in soil body evaporation process and fills with data acquisition
It sets, lacks soil deformation and crack extension monitoring device in soil body evaporation process；And a kind of evaporation of Xi'an University of Architecture and Technology
Under the conditions of measure the experimental provision (patent publication No. be 106771077 A of CN) of soil function, the invention provides a kind of evaporations
Under the conditions of measure the experimental rig of soil function, which can reduce the influence of external interference factors on test result.But
For the device there are many defects, the presence of fan first is in soil in open environment；Secondly, lacking temperature control dress
It sets, constant-temperature constant-humidity environment cannot be simulated；Lack soil deformation and crack extension monitoring device, no evaporative capacity measuring apparatus；It cannot
Realize the real-time acquisition of data.
Summary of the invention
In view of this, providing one kind can real-time measurement high concentration the purpose of the present invention is overcoming defect in the prior art
The experimental provision of tailing moisture evaporation drying performance, can acquire test data in real time, and research temperature, humidity, wind speed, radiation etc. are outer
Under the influence of portion's factor, moisture evaporation rules in high-concentration tailings, for establish high-concentration tailings dehydration by evaporation theoretical model provide according to
According to；It studies in high-concentration tailings drying process, generation, propagation law and the desciccation crack of surface cup shake steam tailing
The influence of hair；During studying high-concentration tailings dehydration by evaporation, the changing rule of water content in sedimentary tailing, matric suction.
It is of the invention it is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision, including it is transparent and
Closed experimental box, the external environmental factor simulation system for simulating external environment, the real-time number for real-time data collection
Outdoor scene dubbing system according to acquisition system and for monitoring experiment tailing sample top surface form；
The external environmental factor simulation system includes light irradiation analog system, wind-force simulation system, temperature control system, wet
Spend control system and rainfall simulation system；
The real-time data acquisition system includes for monitoring the temperature sensor of experimental box internal temperature, for monitoring reality
The humidity sensor of tryoff interior humidity, for monitor experimental box interior lights photograph radiation sensor, for monitoring in experimental box
The matric suction sensor of tailing sample matrix suction, the weighing apparatus for monitoring tailing water content of the sample evaporation capacity by weight method
With the monitor terminal being electrically connected with each sensor；The monitor terminal is host computer and display；
The outdoor scene dubbing system includes being fixedly installed on scanner running track above tailing sample and being installed on to sweep
The handheld three-dimensional laser scanner in instrument running track is retouched, the handheld three-dimensional laser scanner is for acquiring tailing sample
The output end of top surface shape information and handheld three-dimensional laser scanner is electrically connected with monitoring terminal.
Further, the light irradiation analog system includes multiple sun optical analog lamps being set at the top of experimental box, it is described too
Sunlight simulates the height-adjustable of lamp；The wind-force simulation system includes multiple is set in experimental box for tailing sample top
The circulating fan of face blowing, further includes the air speed measuring apparatus being fixedly installed on above tailing sample top surface.
Further, the temperature control system includes the heating rod being set in experimental box and is used for experimental box inside system
Cold refrigeration compressor；The humidity control system includes atomizing humidifier for increasing experimental box interior humidity and for dropping
The outlet of the drier of low experimental box humidity, the atomizing humidifier is connected to by pipeline with experiment box cavity, the drying
Exhaust fan that mechanism includes pump orifice be connected to experiment box cavity and interior dry equipped with desiccant fill, the gas outlet of exhaust fan and
The dry air inlet connection filled, the dry gas outlet filled is connected to the inner cavity of experimental box, is arranged at the air inlet of the exhaust fan
There is flow control valve.
Further, the rainfall simulation system includes the spray tube and drain assembly being set to above tailing sample, described
Drain assembly include for fill the cylinder-shaped ceramic container of tailing sample, it is conformal be coated at cylinder-shaped ceramic container water storage set and
It is set to the water storage sponge of cylinder-shaped ceramic container bottom, water storage set bottom is supported in experimental box bottom；Cylinder-shaped ceramic
Container bottom, which offers, is provided with threaded connection hole, the weighing among multiple first leakage holes and cylinder-shaped ceramic container bottom
It is fixed with the studdle for being used to support cylinder-shaped ceramic container at the top of device, is provided on the downside of the water storage sponge and water storage
Confluence inclined clapboard set inner wall fixed support pad and be arranged at intervals on the downside of support pad, support pad offer multiple the
Two leakage holes, form confluence runner between the support pad and confluence inclined clapboard, the lowest part connection of the confluence runner is set
It is equipped with the drainpipe externally drained to experimental box；The upper end of the studdle sequentially passes through confluence inclined clapboard, support pad, storage
Water sponge is simultaneously connected through a screw thread hole with cylinder-shaped ceramic container and is threadedly coupled；The water storage sponge includes vertical multilayer arranged side by side
The water absorbing properties of sponge and every layer of sponge gradually increase from top to bottom.
It further, further include being fixed at the top of experimental box for measuring the laser range finder of tailing sample sedimentation, it is described to swash
The output end of optar is electrically connected with monitoring terminal.
The beneficial effects of the present invention are:
1. realizing real time data acquisition and transmission, the change of the related physical mechanics parameter of dehydration by evaporation overall process can be monitored
Law.
2. operative sensor is designed as wireless system for transmitting data to avoid line-hit, using data acquisition box,
The wireless real-time transmission of data is realized by GPRS.
3. entire experimental provision is designed as Real-time Feedback regulating system, guarantee set parameter constant in experimentation.
4. design has laser range finder and data transmission system, it is capable of the settling amount of the tested tailing sample of the real time measure.
5. the simulation of wind environment uses circulating fan, reduce interference of the extraneous factor to box house environment.
6. design has rainfall simulator, a variety of rainfall states can be simulated, can be realized tailing under different natural conditions
The research of evaporation rules.
7. design carries out outdoor scene using form (including crack extend) of the handheld three-dimensional laser scanner to tailing surface
Duplication, the influence for research crack to dehydration by evaporation rule provide parameter support.
8. cabinet is made of transparent organic glass, it can guarantee the visualization of whole experiment process.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is enlarged drawing at A in Fig. 1.
Wherein: 1, transparent organic glass cabinet；2, sun optical analog lamp；3, lamps and lanterns height adjuster；4, laser range finder；
5, atomizing humidifier pipeline；6, feedback regulation formula is automatically switched by spraying；7, temperature sensor；8, humidity sensor；9, radiation passes
Sensor；10, humidity probe；11, data acquisition box；12, matric suction sensor；13, air speed measuring apparatus；14, circulated air
Fan；15, handheld three-dimensional laser scanner；16, scanner sliding rail；17, cylinder-shaped ceramic container；18, high-precision electronic scale；
19, heating rod；20, refrigeration compressor；21, atomizing humidifier；22, rainer height adjuster；23, shower nozzle fixing device；
24, spray head；25, inlet pipeline；26, inlet valve；27, control and data collection system；28, adjustable height pedestal；29, it props up
Support screw rod；30, the first leakage hole；31a, upper spongy layer；31b, middle spongy layer；31c, lower spongy layer；32, backing plate is supported；33, it converges
Flow inclined clapboard；34., the second leakage hole；35, exhaust fan；36, dry to fill.
Specific embodiment
Fig. 1 is the structural diagram of the present invention, and Fig. 2 is enlarged drawing at A in Fig. 1, as shown, one of the present embodiment
Can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision, light irradiation analog system is mainly by sun optical analog
The composition such as lamp, light bulb height adjuster, simulation lamp are arranged by matrix form, and light bulb illumination can directly be replaced by test requirements document, lamp
Bubble height can be adjusted according to test requirements document by light bulb height adjuster；
Wind-force simulation system is mainly made of no leaf circulating fan, and circulating fan is uniformly distributed in sample surface layer top, wind
Fan is set to inside experiment casing, guarantees not changing box house environment during fan work.
Temperature control system is mainly made of refrigeration compressor, air supply tube, electrically heated rod etc., refrigeration compressor and electric heating
Stick forms feedback regulation with temperature sensor, the temperature condition automatic start-stop work that can be set based on the test, it is ensured that in cabinet
Temperature is constant.
Humidity control system is mainly made of atomizing humidifier, spraying automatic switch, pipeline etc., humidity control system with it is wet
It spends sensor and forms feedback regulation, the damp condition being set based on the test voluntarily opens and closes spray switch, it is ensured that humidity is permanent in cabinet
It is fixed.
Rainfall simulation system is made of rainfall spray head, charge for remittance device, inlet valve, charge for remittance device height adjustment device etc.,
Analog rainfall situation of change different from light rain to heavy rain etc., the effect of hydraulic balance device are to guarantee each rainfall spray head spray
Water is uniform.
Real-time data acquisition data include the acquisition of the data such as temperature, humidity, radiation, matric suction, weight,
To guarantee that experimental box (i.e. transparent organic glass cabinet) interior temperature is constant, it is located in the box body temperature sensor and temperature
Control system interaction is spent, realizes feedback regulation, guard box body temperature is constant.
Humidity sensor includes humidity probe in humidity sensor and ore pulp in cabinet, and humidity sensor is mainly supervised in cabinet
Humidity changes in measuring tank body, and realizes feedback regulation with humidity control system, moisture constant in guard box body, and in illumination or
When needing to reduce experimental box interior humidity, experimental box interior humidity can be reduced by drier, humidity probe is for monitoring water
Divide the water-cut variation situation in evaporation process inside tailings material.Can by analysis moisture content data, matric suction data with
And crack growth data comprehensive analysis obtains the dehydration by evaporation rule and fracture propagation mechanism of high-concentration tailings.
Radiation sensor is mainly used for measuring light radiation amount, for studying influence of the illumination to dehydration by evaporation rule；Base
Matter suction sensor is set to inside tailing, measures the variation of matric suction in tailing during dehydration by evaporation；Weight acquisition device
It is mainly used for acquiring the variation of sample weight in evaporation process, to obtain the data of evaporation capacity indirectly；And drain assembly includes
For filling the cylinder-shaped ceramic container of tailing sample, the conformal water storage for being coated at cylinder-shaped ceramic container covers and is set to cylindrical shape
The water storage sponge of ceramic vessel bottom, water storage set bottom are supported in experimental box bottom；Cylinder-shaped ceramic container bottom opens up
Have and be provided with threaded connection hole among multiple first leakage holes and cylinder-shaped ceramic container bottom, the top of the weighing apparatus is fixed
There is the studdle for support cylinder shape ceramic vessel, is provided on the downside of the water storage sponge and covers what inner wall was fixed with water storage
Support pad and the confluence inclined clapboard being arranged at intervals on the downside of support pad, support pad offer multiple second leakage holes, institute
It states and forms confluence runner between support pad and confluence inclined clapboard, the lowest part of the confluence runner is provided with and communicated with to experimental box
Externally drained drainpipe；The upper end of the studdle sequentially pass through confluence inclined clapboard, support pad, water storage sponge and with circle
Tubular ceramic vessel is connected through a screw thread hole threaded connection；The water storage sponge includes vertical multilayer sponge arranged side by side and every layer of sea
Continuous water absorbing properties gradually increase from top to bottom；The present embodiment water storage sponge includes upper spongy layer, middle spongy layer and lower spongy layer,
The structure drainage component can facilitate simulated groundwater stream situation, according to the sea of the settable different number number of plies of different geographical environments
Silk floss, while by rotational circle tubular ceramic vessel, it is conducive to adjust cylinder-shaped ceramic container height, guarantees water storage sponge upper and lower end
Face and other component are vertically being combined closely.
Because simulation water evaporation process test takes a long time, (generally in 64h or more), the artificial data that acquire will lead to number
, data small according to collection capacity acquire not congruent influence, and device design has data real-time collecting system.
Because humidity probe and matric suction sensor are placed in inside sample during test, to acquire data and weight
Data acquisition do not have an impact, humidity probe and matric suction sensor acquisition data can be used GPRS wireless transmission method into
Row real-time Data Transmission.
Outdoor scene dubbing system includes handheld three-dimensional laser scanner, scanner running track, water evaporation process sample
Surface is it is possible that crack, the depth and width in crack etc. can all impact evaporation process；And the depth in crack and
Width is directly related to matric suction to be analysed in depth, therefore using three-dimensional laser scanner to crackle during test
It generates, extension carries out outdoor scene duplication.For handheld three-dimensional laser scanner because of small volume, precision is higher, is suitable for more small-sized examination
The scanning of sample.Present apparatus design has scanner running track, it is ensured that carries out under conditions of not disturbing to experimental condition to sample
Scanning.
The course of work:
(1) prepared by sample: the tailing sample of collection in worksite being dried, according to the pulp density of experimental design, weighs drying
Tailing sample and corresponding clear water, and stir, it is configured to the Tailings Slurry of setting concentration.
(2) Preparatory work of experiment: according to experimental condition, being set as analog value for temperature, humidity, the wind speed etc. in chamber, to
After set conditional stability, the sample prepared is poured into cylinder-shaped ceramic container.Analog difference initial concentration, difference
The dehydration by evaporation of a variety of conditions such as thickness, different-grain diameter, different classes of tailing is tested.
(3) start to test: closing experiment chamber door, be evaporated drying test in the environment of sealing, when evaporation, open dry
Dry mechanism is conducive to experimental box interior humidity and stablizes.
(4) data acquire: using real-time data acquisition system to related data (temperature, humidity, the wind in experimentation
Speed, moisture content, matric suction, weight, configuration of surface etc.) it is acquired, wherein the intracorporal temperature of case, humidity, air speed data ginseng
With Real-time Feedback adjust, in guard box body parameter it is constant.
(5) data processing: according to testing program in time record save related data, handled in time after test, as error compared with
Greatly, error reason is found, repeats to test.Each sensor is the prior art, and details are not described herein.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (5)
1. one kind can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision, it is characterised in that: including transparent
And closed experimental box, the external environmental factor simulation system for simulating external environment, for the real-time of real-time data collection
Data collection system and for monitor experiment tailing sample top surface form outdoor scene dubbing system；
The external environmental factor simulation system includes light irradiation analog system, wind-force simulation system, temperature control system, humidity control
System processed and rainfall simulation system；
The real-time data acquisition system includes for monitoring the temperature sensor of experimental box internal temperature, for monitoring experimental box
The humidity sensor of interior humidity, for monitor experimental box interior lights photograph radiation sensor, for monitoring tailing in experimental box
The matric suction sensor of sample matrix suction, for by weight method monitor tailing water content of the sample evaporation capacity weighing apparatus and with
The monitor terminal that each sensor is electrically connected；
The outdoor scene dubbing system includes the scanner running track being fixedly installed on above tailing sample and is installed on scanner
Handheld three-dimensional laser scanner in running track, the handheld three-dimensional laser scanner is for acquiring tailing sample top surface
The output end of shape information and handheld three-dimensional laser scanner is electrically connected with monitoring terminal.
2. one kind according to claim 1 can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision,
It is characterized by: the light irradiation analog system includes multiple sun optical analog lamps being set at the top of experimental box, the sunlight
Simulate the height-adjustable of lamp；The wind-force simulation system includes multiple is set in experimental box for blowing tailing sample top surface
The circulating fan of wind further includes the air speed measuring apparatus being fixedly installed on above tailing sample top surface.
3. one kind according to claim 1 can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision,
It is characterized by: the temperature control system includes the heating rod being set in experimental box and for experimental box internal refrigeration storage
Refrigeration compressor；The humidity control system includes atomizing humidifier for increasing experimental box interior humidity and for reducing reality
The outlet of the drier of tryoff humidity, the atomizing humidifier is connected to by pipeline with experiment box cavity, the drier
The exhaust fan being connected to including pump orifice with experiment box cavity and the interior dry filling equipped with desiccant, the gas outlet of exhaust fan and drying
The air inlet of filling is connected to, and the dry gas outlet filled is connected to the inner cavity of experimental box, and stream is provided at the air inlet of the exhaust fan
Adjustable valve.
4. one kind according to claim 1 can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision,
It is characterized by: the rainfall simulation system includes the spray tube and drain assembly being set to above tailing sample, the draining
Component includes for filling the cylinder-shaped ceramic container of tailing sample, the conformal water storage set for being coated at cylinder-shaped ceramic container and setting
In the water storage sponge of cylinder-shaped ceramic container bottom, water storage set bottom is supported in experimental box bottom；Cylinder-shaped ceramic container
Bottom, which offers, is provided with threaded connection hole among multiple first leakage holes and cylinder-shaped ceramic container bottom, the weighing apparatus
Top is fixed with the studdle for being used to support cylinder-shaped ceramic container, be provided on the downside of the water storage sponge with water storage set in
Confluence inclined clapboard wall fixed support pad and be arranged at intervals on the downside of support pad, support pad offer multiple second leakages
Water hole, forms confluence runner between the support pad and confluence inclined clapboard, the lowest part of the confluence runner is provided with and communicated with
The drainpipe externally drained to experimental box；The upper end of the studdle sequentially passes through confluence inclined clapboard, support pad, water storage sea
It is continuous and be connected through a screw thread hole with cylinder-shaped ceramic container and be threadedly coupled；The water storage sponge includes vertical multilayer sponge arranged side by side
And the water absorbing properties of every layer of sponge gradually increase from top to bottom.
5. one kind according to claim 1 can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision,
It is characterized by also including be fixed at the top of experimental box for measuring the laser range finder of tailing sample sedimentation, the Laser Measuring
The output end of distance meter is electrically connected with monitoring terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910515642.8A CN110132833A (en) | 2019-06-14 | 2019-06-14 | It is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision |
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| CN201910515642.8A CN110132833A (en) | 2019-06-14 | 2019-06-14 | It is a kind of can real-time measurement high-concentration tailings moisture evaporation drying performance experimental provision |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326944A (en) * | 2020-11-04 | 2021-02-05 | 广东铁甲软件系统有限公司 | Ceramic raw material detection equipment and detection control method thereof |
| CN112742045A (en) * | 2020-12-18 | 2021-05-04 | 中国科学院广州能源研究所 | Heat accumulating type solar biogas slurry evaporation and concentration experimental device |
| CN116337737A (en) * | 2023-03-21 | 2023-06-27 | 北京科技大学 | Monitoring device for simulating evaporation cracking characteristics of dense tailings in natural environment |
| CN116448984A (en) * | 2023-04-20 | 2023-07-18 | 北京师范大学 | Multi-module integrated device and method for indoor simulation experiment of universe in wetland |
| CN116679032A (en) * | 2023-06-06 | 2023-09-01 | 中国矿业大学(北京) | Device and method for measuring soil evaporation range under influence of ground cracks |
| CN116337737B (en) * | 2023-03-21 | 2024-06-25 | 北京科技大学 | Monitoring device for simulating evaporation cracking characteristics of dense tailings in natural environment |
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2019
- 2019-06-14 CN CN201910515642.8A patent/CN110132833A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112326944A (en) * | 2020-11-04 | 2021-02-05 | 广东铁甲软件系统有限公司 | Ceramic raw material detection equipment and detection control method thereof |
| CN112326944B (en) * | 2020-11-04 | 2023-09-22 | 广东铁甲软件系统有限公司 | Ceramic raw material detection equipment and detection control method thereof |
| CN112742045A (en) * | 2020-12-18 | 2021-05-04 | 中国科学院广州能源研究所 | Heat accumulating type solar biogas slurry evaporation and concentration experimental device |
| CN116337737A (en) * | 2023-03-21 | 2023-06-27 | 北京科技大学 | Monitoring device for simulating evaporation cracking characteristics of dense tailings in natural environment |
| CN116337737B (en) * | 2023-03-21 | 2024-06-25 | 北京科技大学 | Monitoring device for simulating evaporation cracking characteristics of dense tailings in natural environment |
| CN116448984A (en) * | 2023-04-20 | 2023-07-18 | 北京师范大学 | Multi-module integrated device and method for indoor simulation experiment of universe in wetland |
| CN116448984B (en) * | 2023-04-20 | 2024-05-17 | 北京师范大学 | Multi-module integrated device and method for indoor simulation experiment of universe in wetland |
| CN116679032A (en) * | 2023-06-06 | 2023-09-01 | 中国矿业大学(北京) | Device and method for measuring soil evaporation range under influence of ground cracks |
| CN116679032B (en) * | 2023-06-06 | 2024-01-19 | 中国矿业大学(北京) | Device and method for measuring soil evaporation range under influence of ground cracks |
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Application publication date: 20190816 |