CN109254033A - The detection method that Decline or rise of groundwater level influences seepage through soil mass and water salt Transport - Google Patents
The detection method that Decline or rise of groundwater level influences seepage through soil mass and water salt Transport Download PDFInfo
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- CN109254033A CN109254033A CN201811226127.XA CN201811226127A CN109254033A CN 109254033 A CN109254033 A CN 109254033A CN 201811226127 A CN201811226127 A CN 201811226127A CN 109254033 A CN109254033 A CN 109254033A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/041—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
Abstract
The present invention provides the detection methods that a kind of Decline or rise of groundwater level influences seepage through soil mass and water salt Transport, including sample soil body filling step and simulated groundwater position surge detection analytical procedure；The detection method that Decline or rise of groundwater level provided by the invention influences seepage through soil mass and water salt Transport, reservoir filling can be simulated in laboratory environments or is discharged water, Decline or rise of groundwater level situation caused by mining of groundwater or recharge etc., and measures water and soil gesture, moisture content, temperature, the size of salt content of the soil body at different height；With easy to operate, convenient to carry out, the beneficial effect of high reliablity.
Description
Technical field
The present invention relates to soil body studying technological domains, more particularly, to a kind of Decline or rise of groundwater level to seepage through soil mass and water salt
The detection method that Transport influences.
Background technique
Rainfall infiltration, reservoir filling or discharge water, mining of groundwater or recharge etc. easily cause groundwater level fluctuation.Rainfall enters
Blending groundwater level fluctuation can promote inside soil body that violent seepage flow activity occurs, and seepage flow can change soil's water content size,
The size of unsaturated soil matric suction is influenced in turn.When level of ground water increases, unsaturation soil's water content increases, and can make
Matric suction reduces, and soil classifiction is caused to reduce, and is easy to cause bank slope of reservoir slump, side slope under the action of other factors
The disasters such as unstability；When underground water potential drop is low, soil's water content declines therewith, and interstitial hydraulic pressure reduces, when the range of decrease under moisture content
When spending larger, ground generally will appear sedimentation or collapse phenomenon.In order to avoid above-mentioned phenomenon causes major natural disasters, usually need
Want influence of the Study of The Underground fluctuation in stage to soil moisture content.
In the prior art, Study of The Underground fluctuation in stage is using prototype to one of the method for influence of soil moisture content
Observation method buries the monitoring device of water and soil gesture, moisture, temperature, salinity etc., to dependency number in the region observed
According to carrying out in real time or periodic monitor and acquisition.But the method for using prototype measurement has some disadvantages, such as prototype measurement scale
Greatly, influence factor is more, can not control the variation of rainfall intensity and level of ground water, and prototype measurement is to instrument and equipment requirement
Height, the instrument and equipment that can be used for prototype measurement is few etc., is difficult to obtain comprehensive and accurate data；In another example observation is at high cost, need
Consume a large amount of man power and materials.
Another kind is based on soil mechanics and thermodynamic (al) seepage theory calculates and method for numerical simulation；But this simulation side
Method introduces a large amount of it is assumed that and having carried out letter to the complexity of Practical Project when theorizing computation model or numerical model
Change processing, it is often quite different with actual conditions to obtain result.
The information disclosed in the background technology section is intended only to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Summary of the invention
The present invention is proposed in view of above-mentioned technical problem, and its purpose is to provide a kind of Decline or rise of groundwater level to the soil body
The detection method that seepage flow and water salt Transport influence.
The present invention can simulate reservoir filling in laboratory environments or discharge water, caused by mining of groundwater or recharge etc.
Lower fluctuation in stage situation, and measure water and soil gesture, moisture content, temperature, the size of salt content of the soil body at different height；With operation
Simply, convenient to carry out, the beneficial effect of high reliablity.
It adopts the following technical scheme that achieve the purpose of the present invention
The present invention provides the detection method that a kind of Decline or rise of groundwater level influences seepage through soil mass and water salt Transport, packets
Sample soil body filling step is included, the sample soil body that acquisition comes is loaded in the soil body charge space of seepage through soil mass experimental rig,
Form the soil body to be measured；And
Simulated groundwater position surge detection analytical procedure simulates different levels of ground water using the seepage through soil mass experimental rig
Ramp rate carries out artificial water-level fluctuation influence to the soil body to be measured and to described to be measured under different level of ground water ramp rates
The soil water potential in soil, temperature, moisture content and salt content numerical value detected to obtain groundwater level fluctuation and influence numerical value, record
The groundwater level fluctuation influence numerical value and analyze under different level of ground water ramp rates the seepage through soil mass of the soil body to be measured and
Water salt Transport.
Based on the above technical solution, further, the seepage through soil mass experimental rig includes transparent water tank, stands
Column, the internal transparent drum, data sensor device and data acquisition device for being formed as the soil body charge space；
The transparent water tank is fixed on the position of the top positioned at the transparent drum of the column by height adjustment pedestal
Place is set, the height adjustment pedestal transparent water tank can be adjusted relative to the height of the column, described
On the cabinet wall surface of bright water tank and the scale extended along the vertical direction is respectively arranged on the column；
Transparent drum water inlet and transparent drum water outlet are provided on the side wall of the bottom of the transparent drum, in the water tank
Bottom be provided with water outlet, the water outlet is connect by lower part water supply hose with the transparent drum water inlet；
It is provided with inlet valve on the lower part water supply hose, is provided with outlet valve on the transparent drum outlet pipe；
The data sensor device includes multiple groups tensometer and soil moisture temperature conductivity integrated sensor, the multiple groups
Tensometer and soil moisture temperature conductivity integrated sensor are equidistantly spaced from the peripheral wall of the transparent staving along the vertical direction,
Each group tensometer and soil moisture temperature conductivity integrated sensor respectively include a respective tensometer and a soil water
Divide temperature conductivity integrated sensor, and, one tensometer and the integrated sensing of one soil moisture temperature conductivity
The height of device is identical,
The induction end of the induction end of each tensometer and each soil moisture temperature conductivity integrated sensor
The bucket wall for being each passed through the transparent drum stretches to the inside of the transparent drum, and each tensometer and each soil
Moisture temperature conductivity integrated sensor is electrically connected with the data acquisition device respectively.
Based on the above technical solution, further,
The sample soil body loads step
The bottom of the transparent drum be uniformly laid with blotter, the blotter top be laid with hollow out partition,
The gauze of at least one layer of wetting is laid at the top of the hollow out partition, come to the filling acquisition of the interior laminate layer of the transparent drum
The sample soil body.
Based on the above technical solution, further,
During the sample soil body come to the filling acquisition of the interior laminate layer of the transparent drum:
The height for inserting every layer of sample soil body of the inside of the transparent drum is 3cm to 4cm, and is successively pressed
It is real.
On the basis of any of the above-described technical solution, further,
The sample soil body filling step further includes before the bottom of the transparent drum is uniformly laid with blotter:
Setting covers the metal mesh of the transparent drum water outlet on the inner wall of the transparent drum.
On the basis of any of the above-described technical solution, further,
The sample soil body filling step further includes the sample soil body come to the filling acquisition of the interior laminate layer of the transparent drum
Later:
Hollow out bung is set at the top of the transparent drum, and is laid at least one layer of wetting at the top of the hollow out bung
Gauze.
On the basis of any of the above-described technical solution, further,
Further include sample soil body processing step before the sample soil body loads step:
This sample is pulverized to obtain the initial sample soil body after natural drying, the initial sample soil body is carried out using round-hole mesh
Screening obtains the sample soil body.
On the basis of any of the above-described technical solution, further,
The simulated groundwater position surge detection analytical procedure includes:
Groundwater level fluctuation original state set-up procedure, adjusts the height of the transparent water tank, records the column and institute
The scale value on transparent water tank is stated, records the time with stopwatch；The inlet valve is opened, water level is made to flood the soil to be measured completely
Body closes the inlet valve, opens the drain valve after the soil body inundation to be measured reaches saturation, makes in the soil body to be measured
Water flow out naturally；The moisture content that the primary soil moisture temperature conductivity integrated sensor measures is recorded at interval of 3min,
When continuous record 3 times, when moisture content is close, that is, thinks that the state is groundwater level fluctuation original state, be then turned off described
Drain valve；And
The not analog detection analytical procedure under hull-borne, comprising:
The height of the transparent water tank is adjusted using the height adjustment pedestal, simulation reservoir level is gone up and down, described in record
Scale value on column and the transparent water tank records the time with stopwatch；The inlet valve is opened, it is primary each every 2min record
Moisture content that the reading and each soil moisture temperature conductivity integrated sensor that a tensometer indicates measure and
Salt content；
The height of the fixed transparent water tank, records the quarter number on the column and the transparent water tank, is recorded with stopwatch
Time controls the rate of change of water level by adjusting the aperture of the inlet valve, the rate of change of simulated groundwater position lifting,
Every the reading and the integrated biography of each soil moisture temperature conductivity of the primary each tensometer expression of 1min record
The moisture content and salt content that sensor measures.
Based on the above technical solution, further,
The simulated groundwater position surge detection analytical procedure further includes the analog detection analytical procedure under hull-borne:
The height of the fixed transparent water tank, records the quarter number on the column and the transparent water tank, is recorded with stopwatch
Time simulates the flow event of the soil body under different drainage rates by adjusting the aperture of the drain valve, then opens draining
Valve flows out water naturally, reading and each soil moisture every the primary each tensometer expression of 1min record
The moisture content and salt content that temperature conductivity integrated sensor measures.
On the basis of any of the above-described technical solution, further,
Vertical spacing between the test lead of tensometer described in each adjacent two is 10cm, and the tensometer of topmost
Test lead and the soil body to be measured top surface between vertical spacing, lowest part the tensometer test lead and it is described to
The vertical spacing surveyed between the bottom surface of the soil body is respectively 10cm；Also,
Vertical spacing between the test lead of soil moisture temperature conductivity integrated sensor described in each adjacent two is
10cm, and the top surface of the test lead of the soil moisture temperature conductivity integrated sensor of topmost and the soil body to be measured it
Between vertical spacing, lowest part the soil moisture temperature conductivity integrated sensor test lead and the soil body to be measured
Vertical spacing between bottom surface is respectively 10cm.
In conjunction with above technical scheme, the beneficial effects of the present invention are:
The present invention provides the detection method that a kind of Decline or rise of groundwater level influences seepage through soil mass and water salt Transport, packets
Sample soil body filling step is included, the sample soil body that acquisition comes is loaded in the soil body charge space of seepage through soil mass experimental rig,
Form the soil body to be measured；And
Simulated groundwater position surge detection analytical procedure simulates different Decline or rise of groundwater level using seepage through soil mass experimental rig
Rate on the soil body to be measured carry out artificial water-level fluctuation influence and to the soil water potential in soil to be measured under different level of ground water ramp rates,
The numerical value of temperature, moisture content and salt content is detected to obtain groundwater level fluctuation influence numerical value, records groundwater level fluctuation
It influences numerical value and analyzes the seepage through soil mass and water salt Transport of the soil body to be measured under different level of ground water ramp rates.
The detection method that Decline or rise of groundwater level provided by the invention influences seepage through soil mass and water salt Transport, Neng Gou
Laboratory environment Imitating reservoir filling discharges water, Decline or rise of groundwater level situation caused by mining of groundwater or recharge etc., and surveys
Determine water and soil gesture, moisture content, temperature, the size of salt content of the soil body at different height；Decline or rise of groundwater level pair provided by the invention
The detection method that seepage through soil mass and water salt Transport influence solves prior art center research seepage through soil mass and the migration of water salt
Affecting laws when, limiting factor is more or the technical problem quite different with actual conditions, have it is easy to operate, it is convenient to carry out,
The beneficial effect of high reliablity.
Detailed description of the invention
Technical solution in order to illustrate more clearly of the specific embodiment of the invention or in the related technology, below will be to specific
Attached drawing needed in embodiment or description of Related Art is briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is to indicate flow chart of the invention；
Fig. 2 is the structural schematic diagram of seepage through soil mass experimental rig provided in the present invention；
Fig. 3 is the structural schematic diagram of hollow out partition in seepage through soil mass experimental rig provided in the present invention；
Fig. 4 is the structural schematic diagram of hollow out bung in multi-functional soil body seepage flow test device provided in the present invention.
Appended drawing reference: S0- sample soil body processing step；The S1- sample soil body loads step；S2- simulated groundwater position wave
It is dynamic to test and analyze step；S21- groundwater level fluctuation original state set-up procedure；The S22- not analog detection under hull-borne
Analytical procedure；Analog detection analytical procedure under S23- hull-borne；100- transparent drum；101- hollow out partition；102- is broken
Stone bed course；103- tensometer；104- soil moisture temperature conductivity integrated sensor；105- data acquisition device；106- is saturating
Bright bucket water inlet；107- transparent drum water outlet；108- inlet valve；109- outlet valve；110- hollow out bung；200- is transparent
Water tank；201- column；202- height adjustment pedestal；203- water outlet；The lower part 204- water supply hose.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is to indicate flow chart of the invention；Fig. 2 is the knot of seepage through soil mass experimental test device provided in the present invention
Structure schematic diagram；Fig. 3 is the structural schematic diagram of hollow out partition in seepage through soil mass experimental test device provided in the present invention；Fig. 4
For the structural schematic diagram of hollow out bung in multi-functional soil body Seepage Experiment experimental rig provided in the present invention.
Present embodiments provide a kind of detection method that Decline or rise of groundwater level influences seepage through soil mass and water salt Transport.
With reference to Fig. 1, the detection method which influences seepage through soil mass and water salt Transport includes sample
The soil body loads step S1 and simulated groundwater position surge detection analytical procedure S2.
In sample soil body filling step S1, the sample soil body that acquisition comes is loaded on to the soil body of seepage through soil mass experimental rig
In charge space, the soil body to be measured is formed；
In the surge detection analytical procedure S2 of simulated groundwater position, different underground water are simulated using seepage through soil mass experimental rig
Position ramp rate carries out artificial water-level fluctuation influence to the soil body to be measured and to soil to be measured under different level of ground water ramp rates
Soil water potential, temperature, moisture content and salt content numerical value detected to obtain groundwater level fluctuation and influence numerical value, record underground water
Position influence of fluctuations numerical value and the seepage through soil mass and water salt Transport for analyzing the soil body to be measured under different level of ground water ramp rates.
The detection method that Decline or rise of groundwater level provided in this embodiment influences seepage through soil mass and water salt Transport, can
Reservoir filling is simulated in laboratory environments or is discharged water, Decline or rise of groundwater level situation caused by mining of groundwater or recharge etc., and
Measure water and soil gesture, moisture content, temperature, the size of salt content of the soil body at different height；Decline or rise of groundwater level provided by the invention
It solves prior art center research seepage through soil mass to the detection method that seepage through soil mass and water salt Transport influence and water salt moves
When the affecting laws of shifting, limiting factor is more or the technical problem quite different with actual conditions, have it is easy to operate, convenient for real
It applies, the beneficial effect of high reliablity.
In addition, in some embodiments, on the basis of the above embodiments, further, the above-mentioned soil body seeps with reference to Fig. 2
Stream experimental rig includes transparent water tank 200, column 201, internal transparent drum 100, the data sensor for being formed as soil body charge space
Device and data acquisition device 105.
Transparent water tank 200 is fixed on the position of the top positioned at transparent drum 100 of column 201 by height adjustment pedestal 202
Place is set, height adjustment pedestal 202 transparent water tank 200 can be adjusted relative to the height of column 201, in transparent water tank
On 200 cabinet wall surface and the scale extended along the vertical direction is respectively arranged on column 201.
Transparent drum water inlet 106 and transparent drum water outlet 107 are provided on the side wall of the bottom of transparent drum 100, in water
The bottom of case is provided with water outlet 203, and water outlet 203 is connect by lower part water supply hose 204 with transparent drum water inlet 106.
It is provided with inlet valve 108 on lower part water supply hose 204, outlet valve 109 is provided on transparent drum outlet pipe.
Data sensor device includes multiple groups tensometer 103 and soil moisture temperature conductivity integrated sensor 104, multiple groups
Power meter 103 and soil moisture temperature conductivity integrated sensor 104 are along the vertical direction in the peripheral wall of transparent drum 100 cloth at equal intervals
It sets, each group tensometer 103 and soil moisture temperature conductivity integrated sensor 104 respectively include a respective tensometer 103
With a soil moisture temperature conductivity integrated sensor 104, and, a tensometer 103 and a soil moisture temperature conductance
The height of rate integrated sensor 104 is identical, sets tensometer 103 and soil moisture temperature conductivity integrated sensor 104 to
Identical height can make the data tested out convenient for processing.
The induction end of each tensometer 103 and the induction end of each soil moisture temperature conductivity integrated sensor 104 point
Not Chuan Guo the bucket wall of transparent drum 100 stretch to the inside of transparent drum 100, and each tensometer 103 and each soil moisture temperature
Conductivity integrated sensor 104 is electrically connected with data acquisition device 105 respectively.
In addition, with reference to Fig. 3, combined with Figure 1 and Figure 2, in some embodiments, on the basis of the above embodiments, more into one
Step ground, sample soil body filling step S1 include:
Blotter 102 is uniformly laid with, in the top of blotter 102 laying hollow out partition in the bottom of transparent drum 100
101, the gauze of at least one layer of wetting is laid at the top of hollow out partition 101, come to the filling acquisition of the interior laminate layer of transparent drum 100
The sample soil body.
In these embodiments, by being laid with blotter 102, the uniform fluid flow in transparent drum 100 point will can be flowed into
It dissipates, prevents water flow from washing away to the soil body generation of 100 bottom of transparent drum；Hollow out partition 101 is set and on 101 upper berth of hollow out partition
If at least one layer of gauze, can prevent soil particle tiny in seepage flow and drainage procedure from taking away or being filled into blotter by water flow
In 102, while can also further dispersing water flow.
In addition, in some embodiments, on the basis of the above embodiments, further, in the inside to transparent drum 100
During the sample soil body that layering filling acquisition comes,
The height for inserting every layer of sample soil body of the inside of transparent drum 100 is 3cm to 4cm, and is successively compacted,
In, the height of every layer of sample soil body can be but be not limited to 3cm or 3.2cm or 3.8cm or 4cm.
In these embodiments, the porosity and undisturbed soil of the sample soil body of test in bucket can be made through the above steps
It is as identical as possible or close, to improve the accuracy of test result.
In addition, in some embodiments, on the basis of the above embodiments, further, the sample soil body loads step S1
Further include before the bottom of transparent drum 100 is uniformly laid with blotter 102: covering is set on the inner wall of transparent drum 100
The metal mesh of transparent drum water outlet 107.
In these embodiments, it by the way that metal mesh is arranged, can prevent some in drainage procedure medium stone bed course 102
Gravel particle enters transparent drum water outlet 107 and results in blockage.
In addition, with reference to Fig. 4, in conjunction with Fig. 1 to Fig. 3, in some embodiments, on the basis of the above embodiments, further
Ground, sample soil body filling step S1 further include after the sample soil body that the filling acquisition of the interior laminate layer of transparent drum 100 comes:
Hollow out bung 110 is set at the top of transparent drum 100, and is laid at least one layer of profit at the top of hollow out bung 110
Wet gauze.
In these embodiments, hollow out bung 110 is set and is laid with gauze on hollow out bung 110, can be prevented transparent
The sample soil body in bucket 100 generates some evaporation losses in top surface, to influence test data.
In addition, in some embodiments, based on any of the above embodiments, further loading and walking in the sample soil body
Further include sample soil body processing step S11 before rapid S1: this sample being pulverized to obtain the initial sample soil body after natural drying, uses circle
Hole sizer is sieved to obtain the sample soil body to the initial sample soil body, to guarantee to sieve the exquisiteness of the obtained sample soil body, can be set
The diameter for setting round-hole mesh is 2mm or so.
It in these embodiments, can be excessive to avoid the sample soil moisture content because of production by by this sample naturally dry
And cause test data inaccurate；This sample is pulverized, the air pocket in this sample can be eliminated, the sample soil body made is more
Close to undisturbed soil；The initial sample soil body is screened, the sample soil body particle arrived that can make is more tiny, in the sample soil body
It is filled into transparent drum 100, when carrying out compacting step, the sample soil body is easier to be compacted.
In addition, in some embodiments, based on any of the above embodiments, further simulated groundwater position is fluctuated
Testing and analyzing step S2 includes groundwater level fluctuation original state set-up procedure S21 and the adjustment of groundwater level fluctuation original state
Step S22.
In groundwater level fluctuation original state set-up procedure S21: the height of adjustment transparent water tank 200 records column 201
With the scale value on transparent water tank 200, the time is recorded with stopwatch；Inlet valve 108 is opened, water level is made to flood the soil body to be measured completely,
After soil body inundation to be measured reaches saturation, inlet valve 108 is closed, drain valve is opened, flows out the water in the soil body to be measured naturally；Every
The moisture content that a soil moisture temperature conductivity integrated sensor 104 measures is recorded every 3min, it is aqueous when continuous record 3 times
When rate is close, that is, thinks that the state is groundwater level fluctuation original state, be then turned off drain valve；
Groundwater level fluctuation original state set-up procedure S22 includes:
The height of transparent water tank 200 is adjusted using height adjustment pedestal 202, simulation reservoir level lifting records column 201
With the scale value on transparent water tank 200, the time is recorded with stopwatch；Inlet valve 108 is opened, records primary each tension every 2min
The moisture content and salt content that the reading and each soil moisture temperature conductivity integrated sensor 104 that meter 103 indicates measure；
The height of fixed transparent water tank 200, records the quarter number on column 201 and transparent water tank 200, when being recorded with stopwatch
Between, by adjusting the aperture of inlet valve 108, control the rate of change of water level, the rate of change of simulated groundwater position lifting, every
The reading and each soil moisture temperature conductivity integrated sensor 104 that the primary each tensometer 103 of 1min record indicates are surveyed
The moisture content and salt content obtained.
In addition, in some embodiments, on the basis of the above embodiments, further, the fluctuation inspection of simulated groundwater position
Surveying analytical procedure S2 further includes the analog detection analytical procedure S23 under hull-borne:
The height of fixed transparent water tank 200, records the quarter number on column 201 and transparent water tank 200, when being recorded with stopwatch
Between, by adjusting the aperture of drain valve, the flow event of the soil body under different drainage rates is simulated, drain valve is then opened, makes water
Naturally it flows out, every the reading and each soil moisture temperature conductivity collection that the primary each tensometer 103 of 1min record indicates
The moisture content and salt content measured at sensor 104.
In addition, in some embodiments, based on any of the above embodiments, further, each adjacent two tension
The vertical spacing between 103 test lead is counted as 10cm, and the top surface of the test lead of the tensometer 103 of topmost and the soil body to be measured
Between vertical spacing, lowest part the test lead of tensometer 103 and the bottom surface of the soil body to be measured between vertical spacing be respectively
10cm；Also,
Vertical spacing between the test lead of each adjacent two soil moisture temperature conductivity integrated sensor 104 is
10cm, and between the test lead of soil moisture temperature conductivity integrated sensor 104 and the top surface of the soil body to be measured of topmost
Vertical spacing, lowest part the test lead of soil moisture temperature conductivity integrated sensor 104 and the bottom surface of the soil body to be measured between
Vertical spacing be respectively 10cm.
In addition, specifically, be the data accuracy of guarantee test process, avoid the pollution of other impurities,
Transparent drum, transparent water tank used in the present embodiment, hollow out partition and hollow out bung can be respectively by transparent organic glass systems
At.
Finally, it should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment
What is stressed is all differences from other embodiments, and same and similar part cross-reference is between each embodiment
It can；The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although referring to foregoing embodiments pair
The present invention is described in detail, those skilled in the art should understand that: it still can be to foregoing embodiments
Documented technical solution is modified, or equivalent substitution of some or all of the technical features；And these are repaired
Change or replaces, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. the detection method that a kind of Decline or rise of groundwater level influences seepage through soil mass and water salt Transport characterized by comprising
The sample soil body loads step, and the sample soil body that acquisition comes is loaded on to the soil body charge space of seepage through soil mass experimental rig
In, form the soil body to be measured；And
Simulated groundwater position surge detection analytical procedure simulates different Decline or rise of groundwater level using the seepage through soil mass experimental rig
Rate carries out artificial water-level fluctuation influence to the soil body to be measured and to the soil to be measured under different level of ground water ramp rates
Soil water potential, temperature, moisture content and salt content numerical value detected to obtain groundwater level fluctuation and influence numerical value, described in record
Groundwater level fluctuation influences numerical value and analyzes the seepage through soil mass and water salt of the soil body to be measured under different level of ground water ramp rates
Transport.
2. the detection method that Decline or rise of groundwater level according to claim 1 influences seepage through soil mass and water salt Transport,
It is characterized in that,
The seepage through soil mass experimental rig include transparent water tank, column, the internal transparent drum for being formed as the soil body charge space,
Data sensor device and data acquisition device；
The transparent water tank is fixed at the position of the top positioned at the transparent drum of the column by height adjustment pedestal,
The height adjustment pedestal transparent water tank can be adjusted relative to the height of the column, in the transparent water tank
Cabinet wall surface on and the column on be respectively arranged with the scale extended along the vertical direction；
Transparent drum water inlet and transparent drum water outlet are provided on the side wall of the bottom of the transparent drum, at the bottom of the water tank
Portion is provided with water outlet, and the water outlet is connect by lower part water supply hose with the transparent drum water inlet；
It is provided with inlet valve on the lower part water supply hose, is provided with outlet valve on the transparent drum outlet pipe；
The data sensor device includes multiple groups tensometer and soil moisture temperature conductivity integrated sensor, the multiple groups tension
Meter and soil moisture temperature conductivity integrated sensor are equidistantly spaced from the peripheral wall of the transparent staving along the vertical direction, each group
Tensometer and soil moisture temperature conductivity integrated sensor respectively include a respective tensometer and a soil moisture temperature
Conductivity integrated sensor is spent, and, one tensometer and one soil moisture temperature conductivity integrated sensor
It is highly identical,
The induction end of each tensometer and the induction end of each soil moisture temperature conductivity integrated sensor difference
The inside of the transparent drum, and each tensometer and each soil moisture are stretched to across the bucket wall of the transparent drum
Temperature conductivity integrated sensor is electrically connected with the data acquisition device respectively.
3. the detection method that Decline or rise of groundwater level according to claim 2 influences seepage through soil mass and water salt Transport,
It is characterized in that, the sample soil body filling step includes:
The bottom of the transparent drum be uniformly laid with blotter, the blotter top be laid with hollow out partition, in institute
State the sample that the top of hollow out partition is laid with the gauze of at least one layer of wetting, comes to the filling acquisition of the interior laminate layer of the transparent drum
The soil body.
4. the detection method that Decline or rise of groundwater level according to claim 3 influences seepage through soil mass and water salt Transport,
It is characterized in that, during the sample soil body come to the filling acquisition of the interior laminate layer of the transparent drum:
The height for inserting every layer of sample soil body of the inside of the transparent drum is 3cm to 4cm, and is successively compacted.
5. the detection method that Decline or rise of groundwater level according to claim 3 influences seepage through soil mass and water salt Transport,
It is characterized in that, the sample soil body filling step further includes before the bottom of the transparent drum is uniformly laid with blotter
:
Setting covers the metal mesh of the transparent drum water outlet on the inner wall of the transparent drum.
6. the detection method that Decline or rise of groundwater level according to claim 3 influences seepage through soil mass and water salt Transport,
It is characterized in that, the sample soil body filling step further includes the sample soil come to the filling acquisition of the interior laminate layer of the transparent drum
After body:
Hollow out bung is set at the top of the transparent drum, and is laid with the yarn of at least one layer of wetting at the top of the hollow out bung
Cloth.
7. the detection method that Decline or rise of groundwater level according to claim 1 influences seepage through soil mass and water salt Transport,
It is characterized in that,
Further include sample soil body processing step before the sample soil body loads step:
This sample is pulverized to obtain the initial sample soil body after natural drying, the initial sample soil body is sieved using round-hole mesh
Obtain the sample soil body.
8. the Decline or rise of groundwater level according to any one of claim 2 to 7 influences seepage through soil mass and water salt Transport
Detection method, which is characterized in that
The simulated groundwater position surge detection analytical procedure includes:
Groundwater level fluctuation original state set-up procedure, adjusts the height of the transparent water tank, records the column and described
Scale value on bright water tank records the time with stopwatch；The inlet valve is opened, water level is made to flood the soil body to be measured, institute completely
State after soil body inundation to be measured reaches saturation, close the inlet valve, open the drain valve, make water in the soil body to be measured from
So outflow；The moisture content that the primary soil moisture temperature conductivity integrated sensor measures is recorded at interval of 3min, when continuous
Record 3 times when moisture content is close, that is, thinks that the state is groundwater level fluctuation original state, is then turned off the drain valve；
And
The not analog detection analytical procedure under hull-borne, comprising:
The height of the transparent water tank is adjusted using the height adjustment pedestal, simulation reservoir level lifting records the column
With the scale value on the transparent water tank, the time is recorded with stopwatch；The inlet valve is opened, records primary each institute every 2min
The moisture content and saliferous that the reading and each soil moisture temperature conductivity integrated sensor for stating tensometer expression measure
Amount；
The height of the fixed transparent water tank, records the quarter number on the column and the transparent water tank, records the time with stopwatch,
By adjusting the aperture of the inlet valve, the rate of change of water level is controlled, the rate of change of simulated groundwater position lifting, every
The reading and each soil moisture temperature conductivity integrated sensor that the primary each tensometer of 1min record indicates
The moisture content and salt content measured.
9. the detection method that Decline or rise of groundwater level according to claim 8 influences seepage through soil mass and water salt Transport,
It is characterized in that, the simulated groundwater position surge detection analytical procedure further includes the analog detection analysis step under hull-borne
It is rapid:
The height of the fixed transparent water tank, records the quarter number on the column and the transparent water tank, records the time with stopwatch,
By adjusting the aperture of the drain valve, the flow event of the soil body under different drainage rates is simulated, drain valve is then opened, makes water
Naturally it flows out, reading and each soil moisture temperature conductance every the primary each tensometer expression of 1min record
The moisture content and salt content that rate integrated sensor measures.
10. the detection method that Decline or rise of groundwater level according to claim 2 influences seepage through soil mass and water salt Transport,
It is characterized in that,
Vertical spacing between the test lead of tensometer described in each adjacent two is 10cm, and the survey of the tensometer of topmost
The test lead and the soil to be measured of the tensometer of vertical spacing, lowest part between examination end and the top surface of the soil body to be measured
Vertical spacing between the bottom surface of body is respectively 10cm；Also,
Vertical spacing between the test lead of soil moisture temperature conductivity integrated sensor described in each adjacent two is 10cm, and
It is perpendicular between the test lead of the soil moisture temperature conductivity integrated sensor of topmost and the top surface of the soil body to be measured
Straight interval, lowest part the soil moisture temperature conductivity integrated sensor test lead and the soil body to be measured bottom surface it
Between vertical spacing be respectively 10cm.
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| CN110174337A (en) * | 2019-05-21 | 2019-08-27 | 河海大学 | The device and method of dynamic Soil Water Retention Curves is measured in a kind of laboratory |
| CN110455703A (en) * | 2019-09-02 | 2019-11-15 | 中南大学 | A kind of test device and its test method of compacted soil vaporous water and lyotropic salt migration |
| CN110457794A (en) * | 2019-07-26 | 2019-11-15 | 四川大学 | A kind of reservoir area three-dimensional stability of slope method under the conditions of water-level fluctuation |
| CN110823781A (en) * | 2019-11-22 | 2020-02-21 | 山东大学 | Multifunctional roadbed soil moisture migration experiment model box and experiment method |
| CN111948031A (en) * | 2020-09-24 | 2020-11-17 | 吉林大学 | Soil body direct shear test device considering water heating power salt coupling effect |
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| CN110174337A (en) * | 2019-05-21 | 2019-08-27 | 河海大学 | The device and method of dynamic Soil Water Retention Curves is measured in a kind of laboratory |
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| CN110457794A (en) * | 2019-07-26 | 2019-11-15 | 四川大学 | A kind of reservoir area three-dimensional stability of slope method under the conditions of water-level fluctuation |
| CN110455703A (en) * | 2019-09-02 | 2019-11-15 | 中南大学 | A kind of test device and its test method of compacted soil vaporous water and lyotropic salt migration |
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| CN112051383A (en) * | 2020-08-27 | 2020-12-08 | 上海交通大学 | Simulation experiment device for migration and transformation of pollutants in underground water level fluctuation zone |
| CN111948031A (en) * | 2020-09-24 | 2020-11-17 | 吉林大学 | Soil body direct shear test device considering water heating power salt coupling effect |
| CN113720683A (en) * | 2021-08-30 | 2021-11-30 | 山东大学 | Method and system for predicting characteristic space-time distribution of rock-soil slurry cemented regeneration top plate |
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| CN115078219A (en) * | 2022-06-30 | 2022-09-20 | 西安理工大学 | Multifunctional test device for researching water migration in soil |
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