CN106568571A - Experiment device for monitoring undercurrent exchange under impact of clay lenticular body - Google Patents

Experiment device for monitoring undercurrent exchange under impact of clay lenticular body Download PDF

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Publication number
CN106568571A
CN106568571A CN201610948116.7A CN201610948116A CN106568571A CN 106568571 A CN106568571 A CN 106568571A CN 201610948116 A CN201610948116 A CN 201610948116A CN 106568571 A CN106568571 A CN 106568571A
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China
Prior art keywords
clay
lenticular body
exchange
pressure sensor
sand
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CN201610948116.7A
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Chinese (zh)
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CN106568571B (en
Inventor
鲁程鹏
庄玮
苏小茹
朱宣毓
束龙仓
刘波
陈帅
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Hohai University HHU
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Hohai University HHU
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M10/00Hydrodynamic testing; Arrangements in or on ship-testing tanks or water tunnels

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses an experiment device for monitoring undercurrent exchange under the impact of a clay lenticular body, and the device mainly comprises an undercurrent exchange physical model under the impact of the clay lenticular body, a water pressure sensor system for measuring the whole flow field, and a data collection system for automatically reading data. The undercurrent exchange physical model under the impact of the clay lenticular body is characterized in that the undercurrent exchange physical model comprises an organic glass plate with the back being provided with uniform detection holes, and an organic glass plate with the front not being provided with a detection hole; the organic glass blocks in different sizes are placed between the two organic glass plates, and are used for simulating a clay lenticular body structure; two sides and the bottom surface are respectively provided with glass plates with uniform holes, so as to allow water to pass; and an outer side is additionally provided with a water tank. The device is reasonable in structure, is high in operability, and can conveniently adjust the scale of the clay lenticular body. The pressure sensor system in the device can measure the hydrodynamic condition of the whole flow field, and automatically read the data.

Description

The experimental provision that a kind of monitoring clay lenticular body affects subsurface flow to exchange
Technical field
The present invention relates to the experimental provision that a kind of monitoring clay lenticular body affects subsurface flow to exchange, more particularly to a kind of automatic Change the device of the automatic data collection analytical data of water movement rule during monitoring clay lenticular body affects subsurface flow to exchange, and can be voluntarily Clay lenticular body length-width ratio, buried depth, the experimental provision of size are adjusted, belongs to subsoil water Detection Techniques field.
Background technology
In river phreatic zone, the presence of clay lenticular body is also very universal.Feng Pulin etc. is in analysis Weihe River Lintong section On the basis of many places riverbed compositing characteristic, it was confirmed that appearance of the clay substance in riverbed has universality.
There is clay lenticular body to exert a certain influence undercurrent exchange in phreatic zone.In riverbed, cohesive soil is passed due to which The characteristics of property led is low so that water is not easy infiltration downwards, reduces exchanging for river water and subsoil water, and then causes stream self-purification Slow down with repair ability.Convective exchange is a kind of form of generally existing during nature undercurrent is exchanged, and is characterized in that current are not Especially rapid, bed configuration is stable, and the water table gradient that irregularly causes of bed configuration produces cross-haul traffic, occurs in river band Obtain widely.
In the lab using unhurried current plus the form simulation convective exchange on fluctuating sand dune, study under the influence of clay lenticular body Undercurrent convective exchange.The influencing mechanism for how undercurrent being exchanged in the experiment indoor lenticular body for effectively disclosing different scales, The ground water movement rule during clay lenticular body affects subsurface flow exchange model is quantitatively portrayed, and not only basis is exchanged to tamping undercurrent Research, discloses undercurrent exchange mechanism and has important scientific meaning, and to effectively lifting ecological environment recovery technique, instruct life Produce practice and also there is real value.
And single its scale of clay lenticular body is directed to for the rule that undercurrent affects is probed in the research of more than exactly satisfaction One of research the most basic, grasps impact of the single clay lenticular body scale to undercurrent, more can quantitatively portray lenticular body pair In the impact that undercurrent is exchanged, be conducive to preferably disclosing the affecting laws that clay lenticular body exchanges undercurrent.
At present, laboratory test research is exchanged to the undercurrent under the influence of clay lenticular body and rarely has research.Therefore develop a kind of glutinous Undercurrent exchange test device under the influence of native lenticular body, has important practical significance.
The content of the invention
For existing physical model structure is simple, datamation collection low degree, real-time monitoring and dynamic monitoring ability Not enough the shortcomings of, the present invention, provide a kind of novel in design, under the influence of the automatic monitoring clay lenticular body that structure arbitrarily can be adjusted The experimental provision that undercurrent is exchanged.
The present invention is employed the following technical solutions to solve above-mentioned technical problem:
The present invention provides the experimental provision that a kind of monitoring clay lenticular body affects subsurface flow to exchange, including under the influence of clay lenticular body Undercurrent exchange model, pressure sensor systems, data collecting system and computer, wherein:
Pressure sensor systems, for the real-time head pressure value of measuring system interior point;Data collecting system, for pressure The head pressure value of force sensor system detection carries out circling measurment, the real time data of delivery head pressure, with pressure transducer System is connected;Clay lenticular body undercurrent exchange model, by the length-width ratio of regulation clay lenticular body, buried depth, size come mould Undercurrent under the influence of the different scale lenticular bodies of plan exchanges scene, and is connected with pressure sensor systems by conduit;Computer, Data are read for automatization, is connected with data collecting system, and the data for reading are entered by built-in data analysis software Row analyzing and processing, studies water movement rule.
Used as the further prioritization scheme of the present invention, the clay lenticular body undercurrent exchange model includes the organic glass of two panels Glass, some elliptical cylinder-shape plexiglass blocks being sandwiched between two panels lucite, wherein spy is uniformly provided with a piece of lucite Hole;The two ends and bottom of two panels lucite place one respectively every sand plate;Every the hardened structure of sand be poly (methyl methacrylate) plate-steel wire- Every emery cloth, uniform hole is provided with every the poly (methyl methacrylate) plate of sand plate;Bottom fills quartz sand above sand plate, lower section be without Quartz sand without sand water layer, elliptical cylinder-shape plexiglass block is fixed on quartz sand layer center;Two panels lucite and its between Some elliptical cylinder-shape plexiglass blocks form clay lenticular body structures.
As the present invention further prioritization scheme, the exploratory heading being uniformly arranged on lucite be pressure tap, pressure tap lead to Cross conduit to be connected with pressure sensor systems.
Used as the further prioritization scheme of the present invention, some elliptical cylinder-shape plexiglass blocks have some different chis Very little, different buried depth.
It is as the further prioritization scheme of the present invention, described that there are different heads without sand water layer.
Used as the further prioritization scheme of the present invention, the data collecting system includes a logging and a switch electricity Source.
Used as the further prioritization scheme of the present invention, the pressure sensor systems include a series of pressure transducers and one The experimental provision of individual fixation pressure sensor.
The present invention adopts above technical scheme compared with prior art, with following technique effect:Automatization's prison of the present invention The experimental provision that the undercurrent surveyed under the influence of clay lenticular body exchanges rule is rational in infrastructure, and workable, the design of device can be with Each dimensional parameters of clay lenticular body are adjusted easily, diverse location in model equipment installs pressure transducer, can be with Measure the hydrodynamic condition in whole flow field;In addition, automatization reads data, it is to avoid personal error.
Description of the drawings
Fig. 1 is the structural representation that present invention monitoring clay lenticular body affects subsurface flow exchange test device.
Wherein, 1- water tanks;2- is every sand plate;3- elliptical cylinder-shape plexiglass blocks;4- is without sand water layer;5- pressure taps;6- is artificial Sand-flood;7- holes;8- data collecting systems;9- computers;10- determines head water tank;11- determines head water tank;12- determines head water tank.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment, further elucidate the present invention, it should be understood that these embodiments are merely to illustrate The present invention rather than restriction the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's The modification for planting the equivalent form of value falls within the application claims limited range.
Present invention monitoring clay lenticular body affects subsurface flow exchange test device, as shown in figure 1, including clay lenticular body shadow Ring subsurface flow exchange model, water tank 1, pressure sensor systems, data collecting system 8 and computer 9.Pressure sensor systems, For the real-time head pressure value of measuring system interior point;Data collecting system 8, for what is detected to pressure sensor systems Head pressure value carries out circling measurment, and the real time data of delivery head pressure is connected with pressure sensor systems;Clay lenticular body Undercurrent exchange model, simulates different scale lenticular body shadows by the length-width ratio of regulation clay lenticular body, buried depth, size Undercurrent under ringing exchanges scene, and is connected with pressure sensor systems by conduit;Computer 9, reads data for automatization, It is connected with data collecting system, and process is analyzed to the data for reading by built-in data analysis software, studies current The characteristics of motion.
Clay lenticular body undercurrent exchange model includes two panels lucite, some elliptical cylinder-shapes being sandwiched between two panels lucite Plexiglass block 3, wherein exploratory heading 5 is uniformly provided with a piece of lucite;The two ends and bottom of two panels lucite are put respectively One is put every sand plate 2;It is poly (methyl methacrylate) plate-steel wire-every emery cloth every 2 structure of sand plate, is provided with every the poly (methyl methacrylate) plate of sand plate 2 Even hole is allowed to permeable;Bottom fills quartz sand above sand plate 2, and lower section is without sand water layer 4, cylindroid without quartz sand Shape plexiglass block 3 is fixed on quartz sand layer center;Two panels lucite and its between some elliptical cylinder-shape lucites Block 3 forms clay lenticular body structure.The outside addition water tank 1 of clay lenticular body undercurrent exchange model.
Current determine head water tank 10 from faucet inflow, and then current flow into water tank 1 from hole 7, by every 2 slow stream of sand plate Clay lenticular body undercurrent exchange model body interior is moved, convective exchange occurs in the presence of artificial sand-flood 6, while determining head Water tank 12 and 11 scalable downstream heads and underground water head.In this process, current enter layer of sand on 6 surface of artificial sand-flood Move downward, stream under the influence of elliptical cylinder-shape plexiglass block 3, can farthest pass through bottom every sand plate and bottom without sand Tank 4 occurs to exchange, and is then upward through bottom under barometric gradient effect again and is moved every sand plate upwards, and finally returns that sand-flood Surface, forms undercurrent circulation.
The uniform exploratory heading arranged on the back lucite of clay lenticular body undercurrent exchange model be pressure tap 5, pressure tap 5 It is connected with pressure sensor systems by conduit, pressure data incoming data collection system in pressure sensor systems collection flow field In logging in system 8, after signal is converted in incoming computer 9, the data analysis software in computer is to collection for logging Data be analyzed process, study water movement rule.
When implementing to the present invention, first clay lenticular body is fixed at required buried depth, open pressure transducer System 5, data collecting system 8 and computer 9, water filling.Current are moved through clay lenticular body undercurrent exchange model, just can be in meter The pressure distribution in whole flow field is observed in calculation machine, automation collection analytical data is realized, is studied under the influence of clay lenticular body The rule that undercurrent is exchanged.
The above, the only specific embodiment in the present invention, but protection scope of the present invention is not limited thereto, and appoints What be familiar with the people of the technology disclosed herein technical scope in, it will be appreciated that the conversion expected or replacement, should all cover The present invention include within the scope of, therefore, protection scope of the present invention should be defined by the protection domain of claims.

Claims (7)

1. the experimental provision that a kind of monitoring clay lenticular body affects subsurface flow to exchange, it is characterised in that including clay lenticular body shadow Subsurface flow exchange model, pressure sensor systems, data collecting system and computer are rung, wherein:
Pressure sensor systems, for the real-time head pressure value of measuring system interior point;
Data collecting system, the head pressure value for detecting to pressure sensor systems carry out circling measurment, delivery head pressure The real time data of power, is connected with pressure sensor systems;
Clay lenticular body undercurrent exchange model, simulates difference by the length-width ratio of regulation clay lenticular body, buried depth, size Scale lenticular body under the influence of undercurrent exchange scene, and be connected with pressure sensor systems by conduit;
Computer, is read data for automatization, is connected with data collecting system, and by built-in data analysis software to reading The data for taking are analyzed process, study water movement rule.
2. the experimental provision that a kind of monitoring clay lenticular body according to claim 1 affects subsurface flow to exchange, its feature exist In some ellipses that the clay lenticular body undercurrent exchange model includes two panels lucite, is sandwiched between two panels lucite Cylindricality plexiglass block, wherein being uniformly provided with exploratory heading on a piece of lucite;The two ends of two panels lucite and bottom difference One is placed every sand plate;It is poly (methyl methacrylate) plate-steel wire-every emery cloth every the hardened structure of sand, is provided with every the poly (methyl methacrylate) plate of sand plate Even hole;Bottom fills quartz sand above sand plate, and lower section is without sand water layer, elliptical cylinder-shape lucite without quartz sand Block is fixed on quartz sand layer center;Two panels lucite and its between some elliptical cylinder-shape plexiglass blocks to form clays saturating Mirror structure.
3. the experimental provision that a kind of monitoring clay lenticular body according to claim 2 affects subsurface flow to exchange, its feature exist It is pressure tap in, the exploratory heading being uniformly arranged on lucite, pressure tap is connected with pressure sensor systems by conduit.
4. the experimental provision that a kind of monitoring clay lenticular body according to claim 2 affects subsurface flow to exchange, its feature exist In some elliptical cylinder-shape plexiglass blocks have some different sizes, different buried depth.
5. the experimental provision that a kind of monitoring clay lenticular body according to claim 2 affects subsurface flow to exchange, its feature exist In described that there are different heads without sand water layer.
6. the experimental provision that a kind of monitoring clay lenticular body according to claim 2 affects subsurface flow to exchange, its feature exist In the data collecting system includes a logging and a Switching Power Supply.
7. the experimental provision that a kind of monitoring clay lenticular body according to claim 2 affects subsurface flow to exchange, its feature exist In the pressure sensor systems include a series of experimental provision of pressure transducers and a fixation pressure sensor.
CN201610948116.7A 2016-11-03 2016-11-03 A kind of monitoring clay lenticular body influences the experimental provision of subsurface flow exchange Expired - Fee Related CN106568571B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109799324A (en) * 2019-01-11 2019-05-24 河海大学 A kind of lateral undercurrent exchange measuring device in river and its measurement method
CN112556985A (en) * 2020-12-16 2021-03-26 同济大学 Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102890147B (en) * 2012-10-10 2015-03-25 河海大学 Test system for simulating pore-fissure double-medium seepage hydraulic characteristics
CN104614296B (en) * 2015-01-23 2018-08-07 山东大学 The two-dimentional rock mass of fracture network seepage flow dynamic real-time monitoring system of visualization and method
CN104697742B (en) * 2015-03-31 2017-05-03 河海大学 Simulation test model device for studying hyporheic exchange under drive of flood pulse and using method thereof
CN104977149B (en) * 2015-07-06 2016-04-20 中国矿业大学 The husky transported simulation test unit of a kind of water and method
CN105136983A (en) * 2015-08-05 2015-12-09 河海大学 Test apparatus for monitoring crack-pipeline medium solute transport law

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109799324A (en) * 2019-01-11 2019-05-24 河海大学 A kind of lateral undercurrent exchange measuring device in river and its measurement method
CN112556985A (en) * 2020-12-16 2021-03-26 同济大学 Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method
CN112556985B (en) * 2020-12-16 2021-10-08 同济大学 Riparian zone lateral undercurrent exchange simulation device with adjustable length and test method

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