CN103852571A - Experimental apparatus and method for simulating influence of underground water level of coastal reclamation area on water-salt movement - Google Patents
Experimental apparatus and method for simulating influence of underground water level of coastal reclamation area on water-salt movement Download PDFInfo
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- CN103852571A CN103852571A CN201410118442.6A CN201410118442A CN103852571A CN 103852571 A CN103852571 A CN 103852571A CN 201410118442 A CN201410118442 A CN 201410118442A CN 103852571 A CN103852571 A CN 103852571A
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Abstract
The invention discloses an experimental apparatus and method for simulating the influence of the underground water level of a coastal reclamation area on water-salt movement. A transparent cuboid soil box is placed into a transparent underground water level control box; a moisture sensor installing hole, a salinity sensor installing hole, a temperature sensor installing hole and a sampling hole are formed in the side wall of the soil box along a direction parallel to the center line of a column body at different radial heights; a filter layer is formed at the bottom of soil in the cuboid soil box, and is wrapped with non-woven cloth; a water flow hole is formed in a side wall which is at the same height as the filter layer; a detachable grid movable plate is arranged on the side wall of the cuboid soil box; an infrared lamp or an incandescent lamp is arranged above the cuboid soil box; a water pipe and a water valve are arranged at positions, which are close to the bottom, on the underground water level control box. By adopting the experimental apparatus and method, soil water-salt movement under the condition of rising of the underground water level due to seawater intrusion in the coastal reclamation area can be simulated, real-time dynamic monitoring can be performed, and the soil water-salt movement rule can be researched by changing different experimental conditions such as different water qualities and water levels in the underground water level control box.
Description
Technical field
The invention belongs to farmland water conservancy works field, relate to a kind of experimental provision and method of simulating coastal reclamation area Effect of Underground Water Level water salt motion.
Background technology
Develop rapidly along with socioeconomic, the contradiction of land resource shortage is more and more outstanding, and coastal many areas have all proposed the plan of reclaiming fields from the sea, and encloses and cultivates for a long time develop shoals resource and be faced with the problem of salting of soil.Water soluble salt in alkaline land, coastal reclamation area is mobile along with the seepage flow of the holard, i.e. so-called " salt comes with water, and salt goes with water ".Coastal reclamation area quality of groundwater salinity is higher, the particularly coastal reclamation area of new hydraulic reclamation, and underground water table is closely connected with seawater.More shallow when underground water table ratio, a large amount of moisture evaporations cause salinity to gather in soil, and the salt content of soil is increased, and add the salination problem of heavy soil.
Along with the development of China's alkaline land improving technology, utilize all many-sided researchs such as technical measures to have new development and breakthrough at soil salt Law of Cause of Formation and feature, farmland water-saving irrigation water salt operation mechanism, alkaline land improving.Research shows, in soil, the motion change of water salt is subject to the impact of the factors such as underground water table, rainfall, evaporation, irrigation and drainage, soil utilization, the water salt characteristics of motion is extremely complicated, therefore strengthen the research of holard salt movement mechanism, further understand generation, evolution and the rule of salting of soil, can be salting of soil control necessary basic data and reference frame is provided.
Comparatively conventional in prior art is indoor soil-column simulated experiment, is used for simulated soil water salt migration rule as the conventional water salt of one experimental technique.Existing column simulation experimental provision is mainly to carry out soil infiltration experiment and evaporation experiment, holard salt motion process and rule research under the different Effect of Underground Water Levels of shorter mention, the WATER LEVEL CHANGES causing for coastal reclamation area inwelling lacks rational experiment research and device to the aspect that affects of holard salt motion.
Summary of the invention
In view of this, fundamental purpose of the present invention is to provide a kind of experimental provision and method of simulating coastal reclamation area Effect of Underground Water Level water salt motion, and the holard salt that can realize under the different Effect of Underground Water Levels in coastal reclamation area is dynamically observed, and seeks the water salt characteristics of motion.
The object of the invention is to be achieved through the following technical solutions:
A kind of experimental provision of simulating coastal reclamation area Effect of Underground Water Level water salt motion, it is characterized in that: this device comprises transparent rectangular parallelepiped soil case and transparent underground water table control box, sidewall outside at rectangular parallelepiped soil case is provided with transparent grid portable plate for convenience detach, on rectangular parallelepiped soil case sidewall, is provided with one group of moisture transducer mounting hole, salinity installation of sensors hole, temperature sensor mounting hole and thief hole along the different radial heights of the centerline direction that is parallel to this rectangular parallelepiped; In rectangular parallelepiped soil case, be provided with for the examination soil body, be provided with for the examination soil body bottom filtering layer being wrapped up by seepy material, rectangular parallelepiped soil case is placed in underground water table control box, and junction sealing arranges; Be provided with water pipe and the water valve for controlling water level in underground water table control box bottom; Be provided with the limbers being communicated with underground water table control box at filtering layer on high rectangular parallelepiped soil case sidewall; Above rectangular parallelepiped soil case, be provided with the lamp for controlling evaporation capacity.
In the present invention, rectangular parallelepiped soil case adopts transparent organic glass to make.Three wall outsides at rectangular parallelepiped soil case all arrange transparent grid portable plate, and are provided with one group of moisture transducer mounting hole, salinity installation of sensors hole, temperature sensor mounting hole and thief hole on three corresponding sidewalls.Ground moistening curve under Observable soil vertical section moisture salt dynamics process and drafting Effect of Underground Water Level.
Described lamp is infrared lamp or incandescent lamp, in indoor control evaporation capacity.Underground water table control box is the L shaped rectangular parallelepiped of top seal.In underground water table control box bottom, convenient mobile pulley is set.
Described filtering layer is from top to bottom fine sand layer, coarse sands layer, metalling; Filtering layer is wrapped up in nonwoven fabrics outward.The aperture of limbers is less than the diameter of filtrate in filtering layer.
An experimental technique of simulating coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that the method comprises the steps:
1) in transparent rectangular parallelepiped soil case, pack into for the examination soil body, install moisture transducer, salt sub sensor and temperature sensor at desired location, install the transparent grid portable plate in rectangular parallelepiped soil case outside with adhesive tape, then rectangular parallelepiped soil case is placed in underground water table control box;
2) according to requirement of experiment, infrared lamp or incandescent lamp quantity and power are set, control evaporation capacity;
3) water pipe by underground water table control box bottom and water valve within the regular hour, injects or discharges that test sets for examination water body, supplying to try water body is that seawater or experiment need water;
4) respectively moisture, salinity and temperature are carried out to data acquisition and monitoring by moisture transducer, salt sub sensor and temperature sensor, carry out sampling monitoring from thief hole, obtain sampled data, obtain real-time moisture, salinity and temperature data in native case simultaneously;
5) on transparent Turbogrid plates, draw ground moistening curve, test complete replacing Turbogrid plates and start next group experiment.
The invention has the advantages that: can simulate coastal reclamation area inwelling and cause the holard salt motion in underground water table rising situation, carry out holard salt real-time dynamic monitoring, can intuitively observe soil vertical section moisture, Salt movement process under precipitation, irrigation conditions, can, in conjunction with the soil vertical section water salt motion under the factor impacts such as other experiment condition simulated rainfalls, evaporation, irrigation, explore its Changing Pattern simultaneously.Can be by changing the different experimental conditions research holard salt characteristics of motion such as the interior different quality of underground water table control box, water level.
Brief description of the drawings
Fig. 1-1st, the structural representation of experimental provision in the present invention.
Fig. 1-2 is the side schematic view of experimental provision in the present invention.
Fig. 2-1st, the transparent Turbogrid plates schematic diagram in rectangular parallelepiped soil case front in experimental provision of the present invention.
Fig. 2-2nd, the transparent Turbogrid plates schematic diagram of rectangular parallelepiped soil case side in experimental provision of the present invention.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the present invention is described further.
As shown in Figure 1, the experimental provision of simulation coastal reclamation area Effect of Underground Water Level water salt motion comprises the rectangular parallelepiped soil case 1 that adopts transparent organic glass to make, the underground water table control box 2 that adopts transparent organic glass to make, moisture transducer mounting hole 3, salinity installation of sensors hole 4, temperature sensor mounting hole 5, thief hole 6, the filtering layer 7 being wrapped up by seepy material nonwoven fabrics, limbers 8, water pipe 9, water valve 10, grid portable plate 11, underground water table control box pulley 12, infrared lamp or incandescent lamp 13, for the examination soil body 14, for examination water body 15.
Transparent rectangular parallelepiped soil case 1, is of a size of long 100cm, wide 60cm and high 200cm, is placed in and descends pellucidly in water level control box 2, and 1 and 2 all adopt transparent organic glass, and junction sealing, prevents seepage.
On 3 sidewalls of transparent rectangular parallelepiped soil case 1, along the different radial heights of the centerline direction that is parallel to this cylinder, moisture transducer mounting hole 3, salinity installation of sensors hole 4, temperature sensor mounting hole 5 and thief hole 6 are respectively set, moisture, salinity, temperature and thief hole are located on sustained height.
The bottom of transparent rectangular parallelepiped soil case 1 is provided with the filtering layer 7 of nonwoven fabrics parcel, filtering layer is from top to bottom fine sand layer, coarse sands layer, metalling, the high 20cm of filtering layer, arranges limbers 8 at filtering layer with high sidewall, is convenient to entering in native case 1 for examination water body in Groundwater Control case 2.
3 sidewalls at rectangular parallelepiped soil case 1 are provided with grid portable plate 11 for convenience detach.
Underground water table control box is taked L shaped rectangular parallelepiped, and flash place height is 180cm, and flash is for the controlling groundwater level degree of depth.The place that approaches bottom at underground water table control box 2 arranges water pipe 9 and water valve 10, and water pipe and water valve adopt the etch-proof material of Salt And Alkali Tolerance.Below underground water table control box bottom, be provided with pulley 12, be used for moving and descending regularly water level control box 2 according to experimental site.Above transparent rectangular parallelepiped soil case 1, infrared lamp or incandescent lamp 13 are set according to requirement of experiment, simulate different evaporation conditionses.
An experimental technique of simulating coastal reclamation area Effect of Underground Water Level water salt motion, comprises the steps:
1) in transparent rectangular parallelepiped soil case 1, pack into for the examination soil body 14, at moisture transducer mounting hole 3, salinity installation of sensors hole 4, temperature sensor mounting hole 5 positions install moisture transducer, salt sub sensor and temperature sensor, install the grid portable plate 11 in rectangular parallelepiped soil case 1 outside with adhesive tape, then rectangular parallelepiped soil case is placed in underground water table control box 2.
2) according to requirement of experiment, infrared lamp or incandescent lamp 13 quantity and power are set, control evaporation capacity.
3) water pipe 9 by underground water table control box 2 bottoms and water valve 10 within the regular hour, injects or discharges that test sets for examination water body 15, supplying to try water body is that seawater or experiment need water.
4) by moisture transducer, salt sub sensor and temperature sensor, moisture, salinity and temperature are carried out to data acquisition and monitoring, carry out sampling monitoring from thief hole 6 simultaneously, obtain sampled data and carry out data processing, obtaining the data such as moisture, salinity and temperature real-time in native case.
5) draw ground moistening curve at transparent Turbogrid plates 11, test complete replacing Turbogrid plates and can start next group experiment.
Claims (9)
1. simulate the experimental provision of coastal reclamation area Effect of Underground Water Level water salt motion for one kind, it is characterized in that: this device comprises transparent rectangular parallelepiped soil case (1) and transparent underground water table control box (2), sidewall outside at rectangular parallelepiped soil case (1) is provided with transparent grid portable plate (11) for convenience detach, on rectangular parallelepiped soil case (1) sidewall, is provided with one group of moisture transducer mounting hole (3), salinity installation of sensors hole (4), temperature sensor mounting hole (5) and thief hole (6) along the different radial heights of the centerline direction that is parallel to this rectangular parallelepiped; In rectangular parallelepiped soil case (1), be provided with for the examination soil body (14), be provided with for the examination soil body (14) bottom the filtering layer (7) being wrapped up by seepy material, rectangular parallelepiped soil case (1) is placed in underground water table control box (2), and junction sealing arranges; Be provided with water pipe (9) and the water valve (10) for controlling water level in underground water table control box (2) bottom; Be provided with the limbers (8) being communicated with underground water table control box (2) at filtering layer (7) on high rectangular parallelepiped soil case sidewall; Be provided with the lamp (13) for controlling evaporation capacity in rectangular parallelepiped soil case (1) top.
2. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: rectangular parallelepiped soil case (1) adopts transparent organic glass to make.
3. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, it is characterized in that: three wall outsides at rectangular parallelepiped soil case (1) all arrange transparent grid portable plate (11), and are provided with one group of moisture transducer mounting hole (3), salinity installation of sensors hole (4), temperature sensor mounting hole (5) and thief hole (6) on three corresponding sidewalls.
4. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: described lamp (13) is infrared lamp or incandescent lamp.
5. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: underground water table control box (2) is the L shaped rectangular parallelepiped of top seal.
6. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: in underground water table control box (2) bottom, convenient mobile pulley (12) is set.
7. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: described filtering layer (7) is from top to bottom fine sand layer, coarse sands layer, metalling; The outer nonwoven fabrics of wrapping up in of filtering layer (7).
8. the experimental provision of simulation according to claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that: the aperture of limbers (8) is less than the diameter of filtrate in filtering layer (7).
9. an experimental technique for simulation claimed in claim 1 coastal reclamation area Effect of Underground Water Level water salt motion, is characterized in that the method comprises the steps:
1) in transparent rectangular parallelepiped soil case, pack into for the examination soil body, install moisture transducer, salt sub sensor and temperature sensor at desired location, install the transparent grid portable plate in rectangular parallelepiped soil case outside with adhesive tape, then rectangular parallelepiped soil case is placed in underground water table control box;
2) according to requirement of experiment, infrared lamp or incandescent lamp quantity and power are set, control evaporation capacity;
3) water pipe by underground water table control box bottom and water valve within the regular hour, injects or discharges that test sets for examination water body, supplying to try water body is that seawater or experiment need water;
4) respectively moisture, salinity and temperature are carried out to data acquisition and monitoring by moisture transducer, salt sub sensor and temperature sensor, carry out sampling monitoring from thief hole, obtain sampled data, obtain real-time moisture, salinity and temperature data in native case simultaneously;
5) on transparent Turbogrid plates, draw ground moistening curve, test complete replacing Turbogrid plates and start next group experiment.
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| CN104123880A (en) * | 2014-07-11 | 2014-10-29 | 中国科学院烟台海岸带研究所 | Testing device for simulating underground water level change and water logging and use method thereof |
| CN105070176A (en) * | 2015-07-16 | 2015-11-18 | 河海大学 | Multifunctional in-soil water movement effect teaching demonstration device and experiment method thereof |
| CN105532105A (en) * | 2015-12-11 | 2016-05-04 | 天津大学 | Shallow-layer underground saline water low temperature evaporation experiment device |
| WO2016110152A1 (en) * | 2015-01-08 | 2016-07-14 | 沈阳远大智能农业有限公司 | Device for testing ec value of soil and use method therefor |
| CN105866385A (en) * | 2016-06-06 | 2016-08-17 | 河海大学 | Device and method for simulating spring vent salinity discharge under evaporation |
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| CN104123880B (en) * | 2014-07-11 | 2016-08-24 | 中国科学院烟台海岸带研究所 | The change of a kind of simulated groundwater position and the assay device of water logging and using method thereof |
| WO2016110152A1 (en) * | 2015-01-08 | 2016-07-14 | 沈阳远大智能农业有限公司 | Device for testing ec value of soil and use method therefor |
| CN105070176B (en) * | 2015-07-16 | 2017-08-11 | 河海大学 | A kind of multifunctional soil reclaimed water exercise effect teaching demonstration device and test method |
| CN105070176A (en) * | 2015-07-16 | 2015-11-18 | 河海大学 | Multifunctional in-soil water movement effect teaching demonstration device and experiment method thereof |
| CN105532105A (en) * | 2015-12-11 | 2016-05-04 | 天津大学 | Shallow-layer underground saline water low temperature evaporation experiment device |
| CN105866385A (en) * | 2016-06-06 | 2016-08-17 | 河海大学 | Device and method for simulating spring vent salinity discharge under evaporation |
| CN108614092A (en) * | 2018-06-28 | 2018-10-02 | 上海新园林实业有限公司 | A kind of experimental rig and method in simulation salt-soda soil |
| CN109884280A (en) * | 2019-04-08 | 2019-06-14 | 吉林大学 | Plant the quantitative response experimental system of silicon body microscopic geometry and soil phreatic surface |
| CN110208148A (en) * | 2019-07-10 | 2019-09-06 | 中国市政工程华北设计研究总院有限公司 | For studying and testing the integrated system of moisture and salt regime rule in coastal region soil |
| CN112982609B (en) * | 2019-07-30 | 2022-04-05 | 上海交通大学 | Method for selecting application mode of salt-isolated rainwater garden structure |
| CN112982609A (en) * | 2019-07-30 | 2021-06-18 | 上海交通大学 | Method for selecting application mode of salt-isolated rainwater garden structure |
| CN111289723A (en) * | 2019-09-16 | 2020-06-16 | 天津大学 | Experimental device for simulating water and salt movement of inland saline-alkali soil |
| CN110823781A (en) * | 2019-11-22 | 2020-02-21 | 山东大学 | Multifunctional roadbed soil moisture migration experiment model box and experiment method |
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| CN113075383A (en) * | 2021-03-30 | 2021-07-06 | 陕西地建土地工程技术研究院有限责任公司 | Experimental device and method for simulating water and salt migration of saline-alkali soil |
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Application publication date: 20140611 |