CN104596737B - A kind of DYNAMIC MODELING OF GROUNDWATER experimental method based on groundwater dynamic simulation experiment platform - Google Patents
A kind of DYNAMIC MODELING OF GROUNDWATER experimental method based on groundwater dynamic simulation experiment platform Download PDFInfo
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- CN104596737B CN104596737B CN201510081385.3A CN201510081385A CN104596737B CN 104596737 B CN104596737 B CN 104596737B CN 201510081385 A CN201510081385 A CN 201510081385A CN 104596737 B CN104596737 B CN 104596737B
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Abstract
The present invention relates to a kind of DYNAMIC MODELING OF GROUNDWATER experimental method based on groundwater dynamic simulation experiment platform, specifically first it is configured lower water dynamic simulation experiment platform, the anaerobic condition of the typical geohydrologic unit of simulation is packed into the groundwater dynamic simulation experiment platform again, DYNAMIC MODELING OF GROUNDWATER experiment is finally carried out on the groundwater dynamic simulation experiment platform.The present invention improves the fidelity of simulated experiment, reduce the cost of simulated experiment, research experiment for recovery techniques such as the aeration process in situ of underground water, in situ chemical oxidation technology, biology in situ recovery technique, permeable reaction wall technique, soil in-situ elution renovation techniques provides a kind of reliable experiment basis, expands the universality of analogue means.
Description
Technical field
It is specifically a kind of to be based on underground water the present invention relates to a kind of environmental hydrogeology analogue means and analogy method
The groundwater dynamic simulation experiment platform and analogue experiment method of dynamic simulation experiment platform.
Background technology
Groundwater resources occupy very important status in China's water resource, are safeguarding ecological environment security and economic society
Irreplaceable effect is played in terms of developing in a healthy way.However, with socio-economic development, the life of a large amount of unreasonable discharges
Wastewater and waste materials living, industrial wastewater waste, agriculture pollutants etc., and the unordered exploitation of underground water, cause a large amount of pollutants to enter ground
Lower water environment, causes aerated zone soil and underground water pollution further serious, causes groundwater environment pollution problem increasingly complicated.
Underground water pollution is the Tough questions that China faces, and control and reparation underground water pollution are the important of water conservation
One of work.Unsaturated soil structure is complicated, and pollutant extremely slowly migrates downward into conversion by the effect such as current, therefore aeration zone was both
It is passage of contaminants, is also pollutant storage area, cause pollutant to enter water-bearing layer, and moves and all compare in water-bearing layer
Slowly, pollution often gradually occurs, and finds after underground water pollution, determines that pollution sources also can not show a candle to surface water so easy.Cause
This, for many years, numerous researchers do not turn off the scientific research of water prevention and cure of pollution under the site of an exhibition, and explore such section's knowledge
Topic must rely on corresponding simulated groundwater environmental experiment device, thus groundwater dynamic analogue means reasonable in design turn into from
Thing underground water pollution repairing research hot issue.
Research finds that current underground water physical simulating device has the disadvantage that：First, existing simulation is functionally seen
Device is mostly unilateral to be directed to aeration zone or water-bearing layer, lacks aeration zone and the organic assembling of the aspect analog functuion of zone of saturation two is filled
Put, so that lack pollutant enters zone of saturation by way of simulation monitoring function from aeration zone, it is impossible to grabbed from whole circulation process
Firmly contaminant transportation conversion process, causes analogue means to lack globality；Secondly, field original position carries out experiment and data acquisition is past
It is past to be difficult to.
The content of the invention
It is an object of the invention to provide a kind of DYNAMIC MODELING OF GROUNDWATER based on groundwater dynamic simulation experiment platform
Experimental method, with the problem of the simulated experiment fidelity for solving existing analogue means is low and simulated experiment cost is high.
What the present invention was realized in：A kind of DYNAMIC MODELING OF GROUNDWATER based on groundwater dynamic simulation experiment platform is real
Proved recipe method, is first configured lower water dynamic simulation experiment platform, then be packed into mould in the groundwater dynamic simulation experiment platform
Intend the anaerobic condition of typical geohydrologic unit, finally carry out level of ground water on the groundwater dynamic simulation experiment platform
Simulated experiment.
The groundwater dynamic simulation experiment platform include dynamic analog device, aerator, simulation rain device and in
Control computer.
The main body of the dynamic analog device is rectangular box-type shell, and the box-type shell is added using poly (methyl methacrylate) plate
Work is formed, and periphery is reinforced and supported using stainless steel square tube；Pressed in the front panel of the box-type shell and the inner side of squab panel
100mm spacing is provided with some upright spill necks, and the lower edge of the neck is in contact with the bottom plate of the box-type shell,
The upper edge of the neck is suitable for reading concordant with the box-type shell；Position in the front panel and squab panel of the box-type shell
The porous water dispensing board of one rectangle of grafting, is densely covered with the plate face of the porous water dispensing board between two relative necks
Aperture is 2mm excessively stream eyelet, and the lower edge of the porous water dispensing board is in contact with the bottom plate of the box-type shell, described porous to match somebody with somebody
The upper edge of water plate and the flush suitable for reading of the box-type shell；
Some water inlets that layering is set are connected on one end sidewall paneling of the box-type shell, in the box-type shell
Some delivery ports that layering is set are connected on the sidewall paneling of the other end, the water inlet and the delivery port are 8mm by aperture
Lucite tube be made, on the sidewall paneling of the box-type shell be in matrix distribution；
Being had by aperture for 8mm for some layering settings is respectively arranged with the front panel and squab panel of the box-type shell
The thief hatch that machine glass tube is made, it is right that the thief hatch is distributed in each sample space institute separated by the porous water dispensing board
In the front panel or squab panel answered, sampler is installed on each thief hatch or sealing plug is sealed with, in the case
It is 8mm lucite control that the front panel of sandwich type element and the two ends of squab panel, which are respectively arranged with and arranged in the one of longitudinal arrangement by aperture,
Into overfall, sampler is installed at the overfall or the overflow pipe with control valve is sealed with；
It is provided with the bottom plate of the box-type shell on some draining mudholes, each draining mudhole and is connected to a draining
Discharge pipeline, the pvc pipe of the effective diameter 40mm of draining spoil disposal is made, and is sealed with not at the inner orifice of the draining mudhole
Become rusty steel gauze, draining spoil disposal control valve is connected on the draining discharge pipeline, the lower end of all draining discharge pipelines is commonly connected to
On a piece draining spoil disposal house steward；
Chassis is provided with the bottom shelf of the box-type shell, the chassis is connected by some caster supports；On the chassis
Two ends respectively connection one collapsible rectangular hanger, adjustable for height water tank, a water tank are laid on the suspension bracket
It is connected to by connecting pipeline on the water inlet of the box-type shell, another described water tank is connected to by connecting pipeline
On the delivery port of the box-type shell；Magnetic valve and flowmeter, the flow are separately installed with the connecting pipeline
Data wire on meter is connected in the central control computer；
It is filled with each sample space separated by the porous water dispensing board in the box-type shell for mould
Intend the anaerobic condition of typical geohydrologic unit, be plugged with respectively in each sample space and some upright be by caliber
The monitoring that 20mm pvc pipe is made/medicine feeding hole pipe, the bottom of the monitoring/medicine feeding hole pipe and the bottom plate phase of the box-type shell
Contact, the top of the monitoring/medicine feeding hole pipe and the flush suitable for reading of the box-type shell；In the monitoring/medicine feeding hole pipe
Circumferentially symmetrically be provided with the eyelet that four row apertures are 2mm on tube wall, each column eyelet between the upper and lower away from for 10mm, the monitoring/
Stainless steel gauze is enclosed with the outside of medicine feeding hole pipe；Monitoring probe insertion of the monitoring/medicine feeding hole pipe for on-Line Monitor Device
Wherein, the monitoring probe is water quality monitoring probe, water level monitoring probe and temperature monitoring probe, and the water quality monitoring probe is
PH monitorings probe, oxidation-reduction potential monitoring probe, monitored conductivity probe and one kind or number in dissolved oxygen monitoring probe
Kind；The data wire of the monitoring probe is connected in the central control computer, is believed with transmitting and handling gathered experiment and detect
Number.
In the closure suitable for reading that can start or fasten of being provided with of the box-type shell.
The aerator includes air supply header, gas-distribution pipe and aeration tube；The aeration tube is in the PVC that caliber is 10mm
Double stomata is provided with pipe vertically, the aperture of each stomata is 1mm, and the pitch-row per steam vent is 5mm, the center of circle of two steam vents
Angle is 45 °；The aeration tube is horizontally set on each sample separated by the porous water dispensing board in the box-type shell
The bottom in space, one end of the aeration tube is connected to the gas-distribution pipe being plugged in the box-type shell in each sample space
On, the upper end of the gas-distribution pipe is connected on the air supply header being arranged above the box-type shell, is being matched somebody with somebody described in every
Aeration control valve is housed, the air supply header is supplied by air blower or high-pressure nitrogen bottle on tracheae, controlled by regulating and controlling the aeration
Valve formation aeration processed.
The simulation rain device includes water main, sparge pipe, coiled pipe and the pipe that drenches with rain, and the pipe that drenches with rain is including one
Distributive pipe and some showers on the distributive pipe are vertically connected, the shower is the pvc pipe that caliber is 10mm, in spray
Double draining hole is provided with pipe vertically, the aperture in each water hole is 1mm, and the pitch-row per osculum is 5mm, the center of circle of two osculums
Angle is 45 °；The pipe that drenches with rain is divided into some groups, and shower therein is horizontally set on the top of the box-type shell, every group
The pipe that drenches with rain is connected to the lower end of the sparge pipe by the coiled pipe, and the upper end of the sparge pipe of each group is commonly connected to institute
State on water main, equipped with the control valve that drenches with rain on the every sparge pipe；The water main is by water pump or running water
Pipe supplies water, and passes through the control valve formation rainfall simulation that drenched with rain described in regulation and control.
The packing method of the anaerobic condition of the typical geohydrologic unit of simulation is cutd open from the studied basin geology of determination
Face aeration zone and anaerobic condition layering collection pedotheque, then pedotheque is carried out respectively 50-200 mesh refinement do
Dry processing, finally by the geologic structure relation in the studied basin of pedotheque foundation on treated corresponding geographical position, by
Layer is uniformly inserted in all samples space in the box-type shell, the same anaerobic condition layer inserted in each sample space
The laying depth of pedotheque is essentially identical, and on the sustained height in the box-type shell, the top surface of pedotheque is high
Spend the low 50mm suitable for reading than the box-type shell.
The DYNAMIC MODELING OF GROUNDWATER experimental method includes following operating procedure：
A, test position, and related monitoring/dosing in the box-type shell are determined according to the requirement of Experimental Procedures
Kong Guanzhong insertion water level monitoring probes, the insertion depth of water level monitoring probe according to Experimental Procedures the need for determine, each water
The data wire of position monitoring probe is all connected in central control computer；
B, the magnetic valve opened on the water inlet connecting pipeline of the box-type shell, the water filling into the box-type shell, water
Stream enters box-type shell by water inlet；With the progress of water filling, the magnetic valve on delivery port connecting pipeline is opened, leads to current
Cross delivery port and flow out the box-type shell, by the control to the magnetic valve on water inlet and/or delivery port connecting pipeline, will flow
It is stable in experiment setting value through the simulated groundwater position in the box-type shell；
C, the water level information for constantly being received using central control computer each water level monitoring probe input, are set when level of ground water reaches
Waterflow stabilization is kept during definite value, the water circulation faults condition of setting is now reached, you can proceed by the sight of water cycle process
Survey simulation；The different setting value of conversion, you can realize the simulation of the hydrodynamic field of typical geohydrologic unit.
The present invention can realize the simulation reconstruction of comprehensive Hydrodynamic field, hydrochemical field, available for water quality evolution mechanism
Inquire into, it may also be used for the simulation of the parametric measurement such as dispersion coefficient and research rainfall to pollutant Transport And Transformation in aeration zone is real
Test, can clearly observe migration process of the medicine in aerated zone soil and water-bearing layer, be easy to analyse in depth medicine in aeration zone
Solute transfer and transportion and transformation in soil and water-bearing layer.
The present invention improves the fidelity of simulated experiment, reduces the cost of simulated experiment, is the aeration in situ of underground water
Work is repaired in technology, in situ chemical oxidation technology, biology in situ recovery technique, permeable reaction wall technique, soil in-situ elution
The research experiment of the recovery techniques such as skill provides a kind of reliable experiment basis, expands the universality of analogue means.
Brief description of the drawings
The structural representation of Fig. 1 groundwater dynamic simulation experiment platforms
Fig. 2 is the overlooking the structure diagram of box-type shell.
Fig. 3 is the floor plan of pipe of drenching with rain.
Fig. 4 is the floor plan of aeration tube.
In figure：1st, box-type shell, 2, water inlet, 3, overfall, 4, aeration control valve, 5, drench with rain pipe, 6, drench with rain control valve,
7th, coiled pipe, 8, gas-distribution pipe, 9, thief hatch, 10, delivery port, 11, neck, 12, chassis, 13, draining discharge pipeline, 14, drainage
Mud control valve, 15, castor, 16, suspension bracket, 17, water main, 18, sparge pipe, 19, air supply header, 20, draining spoil disposal house steward,
21st, monitoring/medicine feeding hole pipe, 22, draining mudhole, 23, porous water dispensing board, 24, aeration tube, 25, the dosing mouth of pipe.
Embodiment
The construction method of groundwater dynamic simulation experiment platform of the present invention is first to be configured lower water dynamic simulation experiment platform,
Then specific build is carried out again to operate.
The groundwater dynamic simulation experiment platform include dynamic analog device, aerator, simulation rain device and
The part of central control computer etc. four.
As shown in figure 1, the main body of the dynamic analog device is rectangular box-type shell 1, box-type shell 1 uses 10mm
Thickness is that poly (methyl methacrylate) plate is processed, and is reinforced and is supported with stainless steel square tube in the periphery of poly (methyl methacrylate) plate.In box-type shell 1
The inner side of front panel and squab panel is provided with some upright spill necks by 100mm spacing（Fig. 2）, the lower edge of neck 11
It is in contact with the bottom plate of box-type shell 1, the upper edge of neck 11 is suitable for reading concordant with box-type shell 1.In the front panel of box-type shell 1
The porous water dispensing board 23 of one rectangle of grafting between two necks 11 relative with the position on squab panel, in porous water dispensing board 23
Plate face on be densely covered with excessively stream eyelet, the aperture of excessively stream eyelet is 2mm, and pitch-row is 4mm, is distributed in plum blossom battle array.Porous water dispensing board
23 lower edge is in contact with the bottom plate of box-type shell 1, the upper edge of porous water dispensing board 23 and the flush suitable for reading of box-type shell 1.
A point water inlet 2 for five layers of setting is connected on the right end sidewalls plate of box-type shell 1, every layer of water inlet has at least two
It is individual, form matrix form distribution.Point a delivery port 10 for five layers of setting, every layer of water outlet are connected on the left end sidewall paneling of box-type shell 1
Mouth has at least two, forms matrix form distribution.Water inlet 2 and delivery port 10 are made up by aperture of 8mm lucite tube.This
Sample allows for dynamic analog device and sequentially forms the feeding area of underground water, runoff area and discharge area from right to left.
In Fig. 1, a point thief hatch 9 for five layers of setting, sampling are respectively arranged with the front panel and squab panel of box-type shell 1
Mouth 9 is made up of aperture of 8mm lucite tube, is distributed in corresponding to each sample space separated as porous water dispensing board 23
Front panel or squab panel on.Sampler is installed on each thief hatch 9 or sealing plug is sealed with.In box-type shell 1
The left and right ends of front panel and squab panel are respectively arranged with the row overfall 3 in longitudinal arrangement, and overfall is had by aperture for 8mm
Machine glass tube is made.Sampler is installed at overfall 3 or the overflow pipe with control valve is connected to.
In Fig. 1, eight draining mudholes 22 are provided with the bottom plate of box-type shell 1（Fig. 2）, on each draining mudhole 22
A draining discharge pipeline 13 is connected to, draining discharge pipeline 13 is made of diameter 40mm pvc pipe, at the inner orifice of draining mudhole
Stainless steel gauze is sealed with, draining spoil disposal control valve 14, the lower end of all draining discharge pipelines 13 are connected on draining discharge pipeline 13
It is commonly connected on a horizontal draining spoil disposal house steward 20.
Chassis 12 is provided with the bottom shelf of box-type shell 1, chassis 12 is connected by 6-8 supports of castor 15.On chassis 12
Two ends respectively connect a collapsible rectangular hanger 16, and adjustable for height water tank is laid on suspension bracket 16（It is not shown）, right-hand member
Water tank is connected to by connecting pipeline on the water inlet 2 of the right-hand member of box-type shell 1, and the water tank of left end is connected to case by connecting pipeline
On the delivery port 10 of the left end of sandwich type element 1.The data wire on magnetic valve and flowmeter, flowmeter is separately installed with connecting pipeline
It is connected in central control computer.
It is filled with each sample space separated by porous water dispensing board 23 in box-type shell 1 for simulating typical case
The anaerobic condition of geohydrologic unit, is plugged with some upright monitoring/medicine feeding hole pipes 21 respectively in each sample space,
Monitoring/medicine feeding hole pipe 21 is made up of caliber of 20mm pvc pipe.The bottom of monitoring/medicine feeding hole pipe 21 and the bottom plate of box-type shell 1
It is in contact, the top of monitoring/medicine feeding hole pipe 21 and the flush suitable for reading of box-type shell 1.On the tube wall of monitoring/medicine feeding hole pipe 21
Circumferentially symmetrically be provided with the eyelet that four row apertures are 2mm, each column eyelet between the upper and lower away from for 10mm.In monitoring/medicine feeding hole pipe 21
Outside be enclosed with stainless steel gauze, with prevent silt block eyelet.Each monitoring/medicine feeding hole pipe 21 for simulated experiment use it is each
Monitoring probe in kind of on-Line Monitor Device is inserted, the monitoring probe is water quality monitoring probe, water level monitoring probe and
Temperature monitoring probe；The water quality monitoring probe is pH monitorings probe, oxidation-reduction potential monitoring probe, monitored conductivity probe
, can in a monitoring/medicine feeding hole pipe 21 and dissolved oxygen monitors the one or several kinds in a variety of professional monitorings probes such as probe
With grafting one or several kinds monitoring probe.The data wire of monitoring probe is connected in central control computer, is adopted with transmitting and handling
The experiment detection signal of collection.
The present invention is also formed with capping box-type shell 1 closure suitable for reading（It is not shown）, closure can be by closing
Page is connected on box-type shell 1 or is separately provided, and buckle closure is to the suitable for reading of box-type shell 1 when in use.
As Figure 1 and Figure 4, the aerator includes the parts such as air supply header 19, gas-distribution pipe 8 and aeration tube 24.Aeration
Pipe 24 is that the aperture of each stomata is 1mm in caliber to be provided with double stomata on 10mm pvc pipe vertically, per steam vent
Pitch-row is 5mm, and the center of circle angle of two steam vents is 45 °.Aeration tube 24 be horizontally set in box-type shell 1 by porous water dispensing board
The bottom in the 23 each sample spaces separated（Fig. 4）, one end of aeration tube 24 is connected on gas-distribution pipe 8, and gas-distribution pipe 8 is plugged on case
The edge of each sample space in sandwich type element 1（Fig. 4）, the upper end of gas-distribution pipe 8 is connected to the supply for being arranged at the top of box-type shell 1
On house steward 19（Fig. 1）.Aeration control valve 4 is housed on every gas-distribution pipe 8, air supply header 19 connects with air blower or high-pressure nitrogen bottle
Connect, to provide air or nitrogen, under the regulation and control of aeration control valve 4, the air that is passed through in the water-bearing media in box-type shell 1 or
Nitrogen formation aeration.
As shown in Figure 1, Figure 3, the simulation rain device is arranged on the top of the dynamic analog device, includes water supply
House steward 17, sparge pipe 18, coiled pipe 7 and the parts such as pipe 5 that drench with rain.The pipe 5 that drenches with rain includes a distributive pipe and some showers, some
Shower is be arranged in parallel, and end is vertical with a distributive pipe to be connected, and forms one group of affixed pipe that drenches with rain.Shower is to be by caliber
10mm pvc pipe is made, and is provided with double draining hole vertically on shower, the aperture in each water hole is 1mm, the hole per osculum
It it is 45 ° away from the center of circle angle for 5mm, two osculums, the symmetrical centre face of two osculums is set vertically downward.Drenching with rain in Fig. 3
Guan Yousan groups, shower therein is horizontally set on the top of box-type shell 1, and the every group of pipe 5 that drenches with rain is connected by a coiled pipe 7
To the lower end of sparge pipe 18, suitably to adjust the setting height of the every group of pipe that drenches with rain；The upper end of sparge pipe 18 be commonly connected to one it is horizontal
Water main 17 on, equipped with the control valve 6 that drenches with rain on every sparge pipe 18, the control valve that drenches with rain 6 be magnetic valve.Supply water total
Pipe 17 connects with water pump or tap water pipe network, is supplied water by water pump or running water pipe, passes through the formation rainfall mould of control valve 6 that regulates and controls to drench with rain
Intend.A dosing mouth of pipe 25 is provided with water main 17（Fig. 1）, the mouth of pipe provided with closure, after opening can dosing inwards, pass through
The dripping effect of rainfall, medicine is brought into box-type shell 1, so as to form the face source dirt of continuation in box-type shell 1
Contaminate diffusion simulations.Simulation rain device can be lifted on the top of box-type shell 1 by crane, by the regulation of crane, make
Height of the shower away from the top surface of box-type shell 1 is between 100 ~ 500mm, while also left and right translation can be carried out according to requirement of experiment,
Translation distance can be in 400mm or so.The effect of simulation rain device is rainfall in simulating natural environment, can simulate light rain,
Rainfall state appeared in the various natural environments such as moderate rain, heavy rain, heavy rain.
Central control computer is a part for whole simulation experiment platform, and its function is real-time, automatic online acquisition and place
Manage the water cycle process data of various Sensor monitorings；By the regulation and control to dynamic analog device flow of inlet water and hydraulic pressure, realize
The simulation and regulation and control of the parameters such as flow, flow velocity to underground water in the anaerobic condition of typical geohydrologic unit.
The information gathering that monitoring of the central control computer by being arranged at various monitoring devices in dynamic analog device is popped one's head in,
Hydrodynamic field in the anaerobic condition to typical geohydrologic unit, Groundwater chemical fields are realized in dynamic analog device
Simulation.
The packing method of the anaerobic condition of the typical geohydrologic unit of simulation in the present invention comprises the following steps：
First, installed in the box-type shell 1 of dynamic analog device and fix gas-distribution pipe 18, aeration tube 24, monitoring/medicine feeding hole
Pipe 21, is encased each monitoring/the suitable for reading of medicine feeding hole pipe with stainless steel gauze, then blocked with stainless steel gauze in box-type shell bottom
Draining mudhole 22 on, then each porous water dispensing board 23 is sequentially inserted into box-type shell 1 in corresponding neck 11, by case
Sandwich type element 1 is divided into some sample spaces.
2nd, from aeration zone and anaerobic condition the layering collection pedotheque of the studied basin geologic section of determination, soil
The acquisition mode of earth sample is, according to studied basin geologic section, to be layered successively for unsaturated soil structure and anaerobic condition
Gather pedotheque, typically S-shaped cloth point sampling taken during sampling, topography variation is small, soil fertility is more uniform, sampling unit area compared with
In the case of small, can also be layouted sampling using plum blossom；Fetch earth depth and the sampling quantity holding uniformity, soil of each sampled point
The upper strata of sample and the ratio of lower floor are identical；The pedotheque of collection is respectively put into sample sack, writes two same labels,
Each tool one, indicates the information such as sampling position, date, sampling depth, soil name, numbering, does simultaneously inside and outside sample sack
Good sample record.
3rd, after the pedotheque for being layered collection is taken back, refinement drying process is carried out respectively to pedotheque, specific processing
Mode is that the same layer pedotheque of all collections is uniformly mixed, and all same layer pedotheques that will be gathered are placed on modeling
Expect on cloth, crush, mix, pave into square, the diagonal of two right-angled intersections is drawn on pedotheque, by pedotheque point
Into four parts, two parts of pedotheques of diagonal position are merged into portion, the soil sample of two parts of merging is formed, takes a copy of it to continue to employ；
The pedotheque of continuing to employ of each layer carries out micronization processes respectively, is specifically that pedotheque is fine ground, chooses stone debris therein, then
Pedotheque is placed in drying oven, 12 hours of continuous drying at a temperature of 60 DEG C, after drying processing, taken out of stove
Go out, sieving processing is carried out to pedotheque with the soil sieve of soil bobbing machine and 50-200 mesh.
4th, the geologic structure by the pedotheque refined on dried corresponding geographical position according to studied basin
Relation, is successively uniformly inserted in all samples space in the box-type shell, the same water-bearing layer inserted in each sample space
The laying depth of the pedotheque of dielectric layer is essentially identical, and on the sustained height in the box-type shell, pedotheque
Suitable for reading low 50mm of the apical side height than the box-type shell.
5th, from the continuous water filling of water inlet 2 of box-type shell 1, first from undermost water inlet 2 slowly injected clear water, every
24 hours positions to water inlet of up conversion, until transforming to after the superiors' water inlet and water filling, make in box-type shell 1
Pedotheque is sufficiently humidified so as to saturation, and by slow water inlet from lower to upper, segmentation improves the head of water supply installation, it is ensured that box shell
Filler in body 1 is slowly satisfied water, and whole full water process fully ensures that the gas discharge in porous media, so far groundwater dynamic
Simulation experiment platform builds and finished.
DYNAMIC MODELING OF GROUNDWATER experimental method of the present invention comprises the following steps：
First, test position is determined according to the requirement of Experimental Procedures, and the related monitoring in the box-type shell 1/plus
In medicine hole pipe 21 insert water level monitoring probe, water level monitoring probe insertion depth according to Experimental Procedures the need for determine, each water
The data wire of position monitoring probe is all connected in central control computer.
2nd, the magnetic valve on the water inlet connecting pipeline of the box-type shell 1, the water filling into box-type shell 1, current are opened
Box-type shell 1 is entered by water inlet 2.With the progress of water filling, the magnetic valve on delivery port connecting pipeline is opened, leads to current
The outflow box-type shell 1 of delivery port 10 is crossed, by the control to the magnetic valve on water inlet and/or delivery port connecting pipeline, will be flowed
It is stable in experiment setting value through the simulated groundwater position in box-type shell 1.
3rd, the water level information of each water level monitoring probe input is constantly received using central control computer, when level of ground water reaches
Waterflow stabilization is kept during setting value, the water circulation faults condition of setting is now reached, you can proceed by water cycle process
Observatory control.The different water level settings value of conversion, you can realize the simulation of the hydrodynamic field of typical geohydrologic unit.
Claims (1)
1. a kind of DYNAMIC MODELING OF GROUNDWATER experimental method based on groundwater dynamic simulation experiment platform, it is characterized in that, first set
Groundwater dynamic simulation experiment platform is put, then in the groundwater dynamic simulation experiment platform with being packed into the typical hydrology of simulation
The anaerobic condition of matter unit, finally carries out level of ground water simulated experiment on the groundwater dynamic simulation experiment platform；
The groundwater dynamic simulation experiment platform includes dynamic analog device, aerator, simulation rain device and middle control meter
Calculation machine；
The main body of the dynamic analog device is rectangular box-type shell, and the box-type shell is using poly (methyl methacrylate) plate processing
Into periphery is reinforced and supported using stainless steel square tube；In the front panel of the box-type shell and the inner side of squab panel by 100mm's
Spacing is provided with some upright spill necks, and the lower edge of the neck is in contact with the bottom plate of the box-type shell, the card
The upper edge of groove is suitable for reading concordant with the box-type shell；It is relative with the position on squab panel in the front panel of the box-type shell
The porous water dispensing board of one rectangle of grafting between two necks, in the plate face of the porous water dispensing board being densely covered with aperture is
2mm excessively stream eyelet, the lower edge of the porous water dispensing board is in contact with the bottom plate of the box-type shell, the porous water dispensing board
Upper edge and the flush suitable for reading of the box-type shell；
Some water inlets that layering is set are connected on one end sidewall paneling of the box-type shell, in the another of the box-type shell
Some delivery ports that layering is set, the water inlet and the delivery port the having for 8mm by aperture are connected on the sidewall paneling at end
Machine glass tube is made, and is in matrix distribution on the sidewall paneling of the box-type shell；
Be respectively arranged with the front panel and squab panel of the box-type shell it is some layering set by aperture be the organic glass of 8mm
The thief hatch that glass pipe is made, the thief hatch is distributed in corresponding to each sample space separated as the porous water dispensing board
In front panel or squab panel, sampler is installed on each thief hatch or sealing plug is sealed with, in the box shell
The front panel of body and the two ends of squab panel are respectively arranged with what is be made up in a row of longitudinal arrangement of aperture for 8mm lucite tubes
Overfall, sampler is provided with the overfall or the overflow pipe with control valve is connected to；
It is provided with the bottom plate of the box-type shell on some draining mudholes, each draining mudhole and is connected to a draining spoil disposal
Pipe, the pvc pipe of the effective diameter 40mm of draining spoil disposal is made, and stainless steel is sealed with the inner orifice of the draining mudhole
Gauze, is connected to draining spoil disposal control valve on the draining discharge pipeline, and the lower end of all draining discharge pipelines is commonly connected to one
On draining spoil disposal house steward；
Chassis is provided with the bottom shelf of the box-type shell, the chassis is connected by some caster supports；Two on the chassis
One collapsible rectangular hanger of each connection in end, lays adjustable for height water tank, a water tank passes through on the suspension bracket
Connecting pipeline is connected on the water inlet of the box-type shell, and another described water tank is connected to described by connecting pipeline
On the delivery port of box-type shell；It is separately installed with the connecting pipeline on magnetic valve and flowmeter, the flowmeter
Data wire be connected in the central control computer；
It is filled with each sample space separated by the porous water dispensing board in the box-type shell for simulating allusion quotation
The anaerobic condition of type geohydrologic unit, be plugged with respectively in each sample space it is some it is upright by caliber be 20mm's
The monitoring that pvc pipe is made/medicine feeding hole pipe, the bottom of the monitoring/medicine feeding hole pipe is in contact with the bottom plate of the box-type shell, institute
State the top of monitoring/medicine feeding hole pipe and the flush suitable for reading of the box-type shell；The edge on the tube wall of the monitoring/medicine feeding hole pipe
Circumference is symmetrically provided with the eyelet that four row apertures are 2mm, each column eyelet between the upper and lower away from for 10mm, in the monitoring/medicine feeding hole pipe
Outside be enclosed with stainless steel gauze；The monitoring/medicine feeding hole pipe is inserted for the monitoring probe of on-Line Monitor Device, described
Monitoring probe is water quality monitoring probe, water level monitoring is popped one's head in and temperature monitoring probe, and the water quality monitoring probe monitors for pH to be visited
One or several kinds in head, oxidation-reduction potential monitoring probe, monitored conductivity probe and dissolved oxygen monitoring probe；The prison
The data wire of probing head is connected in the central control computer, and signal is detected to transmit and handle gathered experiment；
In the closure suitable for reading that can start or fasten of being provided with of the box-type shell；
The aerator includes air supply header, gas-distribution pipe and aeration tube；The aeration tube is on 10mm pvc pipe in caliber
Double stomata is provided with vertically, and the aperture of each stomata is 1mm, and the pitch-row per steam vent is 5mm, the center of circle angle of two steam vents
For 45 °；The aeration tube is horizontally set on each sample space separated by the porous water dispensing board in the box-type shell
Bottom, one end of the aeration tube is connected on the gas-distribution pipe being plugged in the box-type shell in each sample space,
The upper end of the gas-distribution pipe is connected on the air supply header being arranged above the box-type shell, in the every gas-distribution pipe
Upper that aeration control valve is housed, the air supply header is supplied by air blower or high-pressure nitrogen bottle, by regulating and controlling the aeration control valve
Form aeration；
The simulation rain device includes water main, sparge pipe, coiled pipe and the pipe that drenches with rain, and the pipe that drenches with rain includes a point of water
Manage and vertically connect some showers on the distributive pipe, the shower is the pvc pipe that caliber is 10mm, on shower
Double draining hole is provided with vertically, and the aperture in each water hole is 1mm, and the pitch-row per osculum is 5mm, the center of circle angle of two osculums
For 45 °；The pipe that drenches with rain is divided into some groups, and shower therein is horizontally set on the top of the box-type shell, described in every group
The pipe that drenches with rain is connected to the lower end of the sparge pipe by the coiled pipe, and the upper end of the sparge pipe of each group is commonly connected to the confession
On supply mains, equipped with the control valve that drenches with rain on the every sparge pipe；The water main is supplied by water pump or running water pipe
Water, passes through the control valve formation rainfall simulation that drenched with rain described in regulation and control；
The packing method of the anaerobic condition of the typical geohydrologic unit of simulation comprises the following steps：
A, installed in the box-type shell of dynamic analog device and fix gas-distribution pipe, aeration tube, monitoring/medicine feeding hole pipe, with stainless
Steel gauze encases each monitoring/the suitable for reading of medicine feeding hole pipe, then blocks with stainless steel gauze the draining spoil disposal in box-type shell bottom
Each porous water dispensing board, is then sequentially inserted into box-type shell in corresponding neck, box-type shell is divided into some by Kong Shang
Sample space；
B, aeration zone and anaerobic condition the layering collection pedotheque from the studied basin geologic section of determination, pedotheque
Acquisition mode be, according to studied basin geologic section, successively for unsaturated soil structure and anaerobic condition layering collection soil
Earth sample, typically S-shaped cloth point sampling is taken during sampling, topography variation is small, soil fertility is more uniform, the less feelings of sampling unit area
Under condition, can also be layouted sampling using plum blossom；Fetch earth depth and the sampling quantity holding uniformity of each sampled point, pedotheque
The ratio of upper strata and lower floor is identical；The pedotheque of collection is respectively put into sample sack, two same labels is write, in sample
Inside and outside each tool one of bag, indicates sampling position, date, sampling depth, soil name, number information, while carrying out sampling note
Record；
After c, the pedotheque for gathering layering are taken back, refinement drying process, specific processing mode are carried out respectively to pedotheque
It is that the same layer pedotheque of all collections is uniformly mixed, all same layer pedotheques that will be gathered are placed on plastic cloth
On, crush, mix, pave into square, the diagonal of two right-angled intersections is drawn on pedotheque, pedotheque is divided into four
Part, two parts of pedotheques of diagonal position are merged into portion, the soil sample of two parts of merging is formed, takes a copy of it to continue to employ；Each layer
Pedotheque of continuing to employ carry out micronization processes respectively, be specifically that pedotheque is fine ground, choose stone debris therein, then by soil
Earth sample is placed in drying oven, 12 hours of continuous drying at a temperature of 60 DEG C, after drying processing, is taken out, is used out of stove
The soil sieve of soil bobbing machine and 50-200 mesh carries out sieving processing to pedotheque；
D, the geologic structure relation by the pedotheque refined on dried corresponding geographical position according to studied basin,
Successively uniformly insert in all samples space in the box-type shell, the same anaerobic condition layer inserted in each sample space
Pedotheque laying depth it is essentially identical, and on sustained height in the box-type shell, the top surface of pedotheque
Suitable for reading low 50mm of the height than the box-type shell；
E, the continuous water filling of water inlet from box-type shell, first from undermost water inlet slowly injected clear water, every 24 hours to
The position of water inlet of up conversion, until transforming to after the superiors' water inlet and water filling, makes the pedotheque in box-type shell
It is sufficiently humidified so as to saturation, by slow water inlet from lower to upper, segmentation improves the head of water supply installation, it is ensured that filling out in box-type shell
Thing slowly full water is filled, whole full water process fully ensures that the gas discharge in porous media, so far groundwater dynamic simulated experiment
Platform construction is finished；
The DYNAMIC MODELING OF GROUNDWATER experimental method includes following operating procedure：
A, test position, and related monitoring/medicine feeding hole pipe in the box-type shell are determined according to the requirement of Experimental Procedures
Middle insertion water level monitoring probe, the insertion depth of water level monitoring probe according to Experimental Procedures the need for determine, each water level prison
The data wire of probing head is all connected in central control computer；
B, the magnetic valve opened on the water inlet connecting pipeline of the box-type shell, the water filling into the box-type shell, current lead to
Cross water inlet and enter box-type shell；With the progress of water filling, the magnetic valve on delivery port connecting pipeline is opened, makes current by going out
The box-type shell is flowed out at the mouth of a river, by the control to the magnetic valve on water inlet and/or delivery port connecting pipeline, by flowing through
The simulated groundwater position stated in box-type shell is stable in experiment setting value；
C, the water level information for constantly receiving using central control computer each water level monitoring probe input, when level of ground water reaches setting value
When keep waterflow stabilization, now reach the water circulation faults condition of setting, you can proceed by the observation mould of water cycle process
Intend；The different setting value of conversion, you can realize the simulation of the hydrodynamic field of typical geohydrologic unit.
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| CN106124160B (en) * | 2016-08-12 | 2018-07-17 | 西南交通大学 | A kind of Tunnel Base structure pump-absorb action simulator |
| CN106370803B (en) * | 2016-08-30 | 2018-10-23 | 河海大学 | A kind of interior phreatic zone local ground watering generates the circulatory system and operating method |
| CN108061791A (en) * | 2017-12-18 | 2018-05-22 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | A kind of farm field irrigation drainage tests automatic control system |
| CN109839491B (en) * | 2019-04-02 | 2021-11-02 | 中国地质科学院水文地质环境地质研究所 | Underground water back-supplementing simulation experiment method |
| CN111014282B (en) * | 2019-12-31 | 2021-09-03 | 西安石油大学 | Deep petroleum polluted soil simulation restoration device and application |
| CN112285321B (en) * | 2020-10-09 | 2021-06-01 | 合肥工业大学 | VOCs polluted soil body aeration repair test device and test method |
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