CN110320249A - A kind of frozen soil flow of water measuring device and method - Google Patents
A kind of frozen soil flow of water measuring device and method Download PDFInfo
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- CN110320249A CN110320249A CN201910628397.1A CN201910628397A CN110320249A CN 110320249 A CN110320249 A CN 110320249A CN 201910628397 A CN201910628397 A CN 201910628397A CN 110320249 A CN110320249 A CN 110320249A
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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
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
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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
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/223—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance for determining moisture content, e.g. humidity
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Abstract
The present invention relates to soil water potential field of measuring technique, a kind of frozen soil flow of water measuring device and method are provided, described device includes: the first pipe fitting, flow of water measuring part, temperature regulating device and heat insulating member, and temperature regulating device is arranged in the end of the first pipe fitting, for controlling the temperature of frozen soil soil sample to be measured；Flow of water measuring part is arranged in the first pipe fitting, and heat insulating member is arranged in the outside of first pipe fitting.The probe of flow of water measuring part is inserted into the frozen soil sample in the first pipe fitting by frozen soil flow of water measuring device and method provided by the invention, and in the disposed outside heat insulating member of the first pipe fitting, reduces influence of the ambient temperature to flow of water measuring part measurement accuracy；Temperature is controlled by temperature regulating device, after soil water potential reaches balance inside and around the probe of flow of water measuring part, the flow of water under corresponding temperature in frozen soil sample can be measured, it avoids occurring ice inside the probe of flow of water measuring part to influence flow of water measurement result in frozen soil, and then improves the measurement accuracy of the frozen soil flow of water.
Description
Technical field
The present invention relates to soil water potential field of measuring technique, more particularly, to a kind of frozen soil flow of water measuring device and side
Method.
Background technique
Soil water potential refers to total potential energy of contained humidity in soil, is description and judges the important of soil water content and migration
Index.There is close association, with the reduction of soil moisture content, soil water sorption ability gradually increases between soil water potential and water content
By force, soil water potential is gradually lowered.
In winter, as temperature is down to 0 DEG C hereinafter, topsoil liquid water becomes ice, soil texture is changed, is reduced
The flow of water of this layer.Under water potential gradient effect, the moisture of lower soil starts to migrate upwards, forms a hydrothermal reaction coupling migration machine
System.The mechanism to during interpretation soil freezing energy balance and Water Transport play a significant role, and accurately obtain jelly
The flow of water in soil becomes the key for understanding hydrothermal reaction coupling migration mechanism.
The flow of water in existing soil can be measured by tensometer or dielectric method etc., can also pass through the primary Long Fang of carat
Journey is calculated.Tensometer allows the water in pot clay end to enter soil using the pressure difference between wet pot clay end and soil water potential
Earth is until reach equilibrium state, to obtain the flow of water of tested soil.But when temperature is lower than -0.5 DEG C, inside pot clay end
Water capacity easy freezing, so as to cause tensometer, in the measuring frozen flow of water, resultant error is larger.The original of Jie's electrical survey soil water potential
Reason is the water characteristic curve (relation curve between moisture and the flow of water) using known porous material, in porous material and is tested
When soil reaches equilibrium state, the water potential value of soil is calculated according to the moisture value of porous material.But the ice in frozen soil
Formation can change its dielectric constant, and identical as tensometer, and internal moisture of popping one's head in may also can freeze, to influence measurement essence
Degree.
Summary of the invention
(1) technical problems to be solved
The embodiment of the present invention provides a kind of frozen soil flow of water measuring device and method, to solve internal water of popping one's head in the prior art
Divide the problem for freezing to cause flow of water measurement inaccuracy.
(2) technical solution
In order to solve the above-mentioned technical problem, according to a first aspect of the embodiments of the present invention, a kind of frozen soil flow of water measurement is provided
Device, comprising: the first pipe fitting, flow of water measuring part, temperature regulating device and heat insulating member, first pipe fitting are interior to be measured for filling
Frozen soil soil sample；
The temperature regulating device is arranged in the end of first pipe fitting, for controlling the temperature of the frozen soil soil sample to be measured；
The flow of water measuring part is arranged in first pipe fitting, for measuring the flow of water of the frozen soil soil sample to be measured；
The heat insulating member is arranged in the outside of first pipe fitting.
Preferably, the temperature regulating device is cycle refrigerating plant, and the cycle refrigerating plant includes refrigeration part, described cold
Freeze component layout and is provided with anti-icing fluid import and anti-icing fluid outlet, institute on the both ends of first pipe fitting, the refrigeration part
Anti-icing fluid import is stated for being connected with the anti-icing fluid of preset temperature.
Preferably, the flow of water measuring part be dielectric flow of water sensor, including probe, shell and be located at shell it is intracorporal
Control circuit board offers mounting hole on the tube wall of first pipe fitting, and the flow of water measuring part is fixed on the mounting hole
Interior, the probe is located at the inside of first pipe fitting and the shell is located at the outside of first pipe fitting.
Preferably, the heat insulating member includes the second pipe fitting and heat-barrier material, and second pipe fitting is disposed coaxially on described
The outside of first pipe fitting, the heat-barrier material are filled between first pipe fitting and second pipe fitting.
Preferably, the heat-barrier material is heat insulation foam or soil.
Preferably, the mounting hole is located at the middle position of the tube wall of first pipe fitting along its length.
Preferably, first pipe fitting and the second pipe fitting are that PVC material is made.
According to a second aspect of the embodiments of the present invention, a kind of frozen soil flow of water measurement method is provided, is implemented using such as present invention
Frozen soil flow of water measuring device described in example first aspect, comprising:
Soil sample to be measured is inserted in the first pipe fitting, is compacted after filling up by S1；
Soil sample to be measured is refrigerated to preset temperature using temperature regulating device and forms frozen soil soil sample to be measured by S2；
Flow of water measuring part is mounted in frozen soil soil sample to be measured by S3；
S4 adjusts the temperature of the frozen soil soil sample to be measured, and the flow of water of frozen soil soil sample to be measured is measured under corresponding temperature.
Preferably, mounting hole is offered on the tube wall of first pipe fitting, the S3 is specifically included:
It inwardly drills to frozen soil soil sample to be measured along the mounting hole, by the probe of the flow of water measuring part along described
Mounting hole is inserted into the hole of the frozen soil soil sample to be measured.
Preferably, between the S3 and S4 further include:
The first pipe fitting for being equipped with flow of water measuring part is coaxially installed in the second pipe fitting, is managed in the first pipe fitting and second
It filling soil identical with the soil sample to be measured and is compacted between part.
Preferably, the S4 is specifically included:
The temperature of frozen soil soil sample to be measured is adjusted using temperature regulating device, after adjusting temperature every time, to flow of water measuring part and week
It encloses after soil reaches balance, measures the flow of water of frozen soil soil sample to be measured under corresponding temperature.
(3) beneficial effect
Flow of water measuring part is inserted into the first pipe fitting by frozen soil flow of water measuring device and method provided in an embodiment of the present invention
Frozen soil sample in, and in the disposed outside heat insulating member of the first pipe fitting, reduce ambient temperature and flow of water measuring part surveyed
The influence of accuracy of measurement；Temperature is controlled by temperature regulating device, is reached to soil water potential inside and around the probe of flow of water measuring part
After balance, the flow of water under corresponding temperature in frozen soil sample can be measured, avoid occurring inside the probe of the flow of water measuring part ice to
Flow of water measurement result in frozen soil is influenced, and then improves the measurement accuracy of the frozen soil flow of water.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of frozen soil flow of water measuring device in the embodiment of the present invention；
Fig. 2 is the schematic diagram of internal structure of the first pipe fitting and heat insulating member in the embodiment of the present invention；
Fig. 3 is the flow chart of frozen soil flow of water measurement method in the embodiment of the present invention；
In figure: 1, the first pipe fitting；2, flow of water measuring part；3, refrigeration part；4, heat insulating member；5, frozen soil soil sample to be measured；
21, it pops one's head in；22, shell；31, anti-icing fluid import；32, anti-icing fluid exports；41, the second pipe fitting；42, heat-barrier material.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As depicted in figs. 1 and 2, the embodiment of the present invention provides a kind of frozen soil flow of water measuring device, comprising: the first pipe fitting 1, water
Gesture measuring part 2, temperature regulating device and heat insulating member 4, the first pipe fitting 1 are interior for filling soil sample 5 to be measured；
Temperature regulating device is arranged in the end of the first pipe fitting 1, for controlling the temperature of frozen soil soil sample 5 to be measured.
Flow of water measuring part 2 is arranged in the first pipe fitting 1, and for measuring the flow of water of the soil sample to be measured, when measurement is specific
Positioned at the inside of frozen soil soil sample 5 to be measured.
Heat insulating member 4 is arranged in the outside of the first pipe fitting 1, surveys for reducing ambient temperature to flow of water measuring part 2
The influence of accuracy of measurement.
Wherein, frozen soil soil sample 5 to be measured is for prefabricated frozen soil sample or by temperature regulating device to be measured in the first pipe fitting 1
Soil sample carries out cooling formation.
In the specific course of work, flow of water measuring part 2 is inserted into the frozen soil sample in the first pipe fitting 1, and the
The disposed outside heat insulating member 4 of one pipe fitting 1 reduces influence of the ambient temperature to 2 measurement accuracy of flow of water measuring part；Pass through
Temperature regulating device control temperature can measure correspondence after soil water potential reaches balance inside and around the probe of flow of water measuring part 2
At a temperature of the flow of water in frozen soil sample, avoid occurring ice inside the probe of flow of water measuring part 2 surveying to influence the flow of water in frozen soil
Amount is as a result, improve the measurement accuracy of the flow of water in frozen soil.
On the basis of the above embodiments, temperature regulating device is cycle refrigerating plant, cycle refrigerating plant in the present embodiment
Temperature-controlled precision is 0.1 DEG C, and cycle refrigerating plant includes refrigeration part 3 and liquid storage component (not shown), liquid storage components interior
It is installed with anti-icing fluid, while corresponding temperature-adjusting device is set to control the temperature of anti-icing fluid in liquid storage components interior.Due to
The freezing point of anti-icing fluid is lower than water, is liquid condition under the conditions of subzero temperature, by circulating achievable temperature control.
Specifically, refrigeration part 3 is arranged in the both ends of the first pipe fitting 1, and 31 He of anti-icing fluid import is provided on refrigeration part 3
Anti-icing fluid outlet 32, anti-icing fluid import 31 with the anti-icing fluid of preset temperature for being connected, specifically, anti-icing fluid import 31 and anti-
Freeze liquid outlet 32 to be connected by pipeline with liquid storage component respectively, so that the anti-icing fluid of preset temperature is able to enter refrigeration part 3
In and from 32 outflow of anti-icing fluid outlet, realize and the temperature of the soil sample to be measured in the first pipe fitting 1 adjusted.
On the basis of the various embodiments described above, the flow of water measuring part 2 in the present embodiment is passed using the existing dielectric flow of water
Sensor carries out flow of water measurement, specifically includes probe 21, shell 22 and the intracorporal control circuit board of shell.Wherein, probe 21 is same
Axis porous structure does not freeze the water porous material progress moisture internal by hole on probe and probe in frozen soil soil sample 5 to be measured
Exchange, after reaching balance, the moisture and the flow of water for 21 internal porous materials of popping one's head in are equal with frozen soil soil sample 5 to be measured, due to porous material
Therefore the water characteristic curve of material is it is known that, can calculate its water potential value according to the moisture value of porous material, and then obtain to be measured
The water potential value of frozen soil soil sample 5.The moisture flow of water relation curve of porous material indicates the corresponding relationship of moisture and the flow of water, can basis
The type of porous material is known in advance.Other dielectric flow of water sensors can also use in the measurement method that this example provides.
Further, mounting hole is offered on the tube wall of the first pipe fitting 1, mounting hole is through-hole, and the dielectric flow of water is passed
Sensor is fixed in mounting hole, so that probe 21 is located at the inside of the first pipe fitting and shell 22 is located at the outside of the first pipe fitting 1, by
It is easy to be particularly subject to the influence of the temperature effect of circuit board by external environment influence in the output of dielectric flow of water sensor, the
The disposed outside of one pipe fitting 1 has heat insulating member 4, to reduce influence of the temperature effect to measurement result.
On the basis of the various embodiments described above, heat insulating member 4 specifically includes the second pipe fitting 41 and heat-barrier material 42, the second pipe
Part 41 is disposed coaxially on the outside of the first pipe fitting 1, and heat-barrier material 42 is filled between the first pipe fitting 1 and the second pipe fitting 41.Wherein,
Heat insulation foam or soil can be used in heat-barrier material 42, and wherein soil uses non-frozen soil sample.Especially for filling soil, can to
It when inserting soil sample to be measured in the first pipe fitting 1, reserves that a part of soil is stand-by more, the cost of test device can be saved.Certainly,
It should be noted that being needed when filling soil by soil compression before the first pipe fitting 1 and the second pipe fitting 42, so that entire dress
It sets fixation and forms overall structure.Come in fact it should be noted that corresponding external condition control device can also be used in heat insulating member 4
It is existing.
In above-described embodiment, the first pipe fitting 1 and the second pipe fitting 41 are that PVC material is made, can be used existing pvc pipe into
Row selection, cost is relatively low.Wherein, the diameter of the first pipe fitting 1 is with reference to the pvc pipe for selecting 16cm, the diameter reference of the second pipe fitting 41
The pvc pipe of 25cm is selected, length can be adjusted according to native test request sample to be measured.Specifically, the shape of pvc pipe, two PVC
The distance between pipe (diameter difference) can change, as long as the probe 21 of guarantee dielectric flow of water sensor and the position of shell 22 are
It can.
On the basis of the various embodiments described above, in order to keep measurement result more accurate, need flow of water measuring part 2 as far as possible
It is mounted on the middle part of soil sample to be measured, i.e. mounting hole in above-described embodiment needs to be located at the centre of the first pipe fitting 1 along its length
Position.
On the basis of the various embodiments described above, it is arranged according to the diameter of the first pipe fitting 1 and length, frozen soil soil sample 5 to be measured is most
Possibly larger, soil sample is bigger, and specific heat is bigger, is affected by the external environment smaller, can preferably keep the temperature at certain
One fixed value.But soil sample size should comprehensively consider the size of the cycle refrigerating plant, diameter is no more than circulating frozen
The diameter of device.
On the basis of the various embodiments described above, soil sample initial aqueous rate should be higher, close to saturation.Soil sample initial aqueous rate compared with
Gao Shi increases same temperature, and the liquid water that soil sample is melted is more, and dielectric flow of water sensor can be in lower temperature strip
There is higher sensitivity under part.
On the basis of the various embodiments described above, when the temperature of frozen soil soil sample 5 to be measured is lower than a certain threshold value, it can be set larger
Heating gradient lesser heating gradient is set when the temperature of frozen soil soil sample 5 to be measured is higher than the threshold value.Because lower in temperature
When, the thawing speed of frozen soil soil sample 5 to be measured is slower, and temperature gradient is big, can save test period, shortens the test period.
On the basis of the above embodiments, when the probe diameter of dielectric flow of water sensor is smaller, under a certain fixed temperature,
Equilibration time is shorter, is conducive to improve measurement efficiency.
Frozen soil flow of water measuring device provided in an embodiment of the present invention forms annular dress by the pvc pipe of two different-diameters
It sets, dielectric flow of water sensor probe is inserted into the frozen soil soil sample to be measured in the first pipe fitting, shell is placed between two pvc pipes
Annular region reduces temperature effect, controls temperature by cycle refrigerating plant, reaches flat wait soil water potential inside and around popping one's head in
After weighing apparatus, the flow of water under corresponding temperature in frozen soil can be measured, avoids probe is internal from ice occur to influence flow of water measurement knot in frozen soil
Fruit improves the measurement accuracy of the flow of water in frozen soil.
On the basis of the various embodiments described above, as shown in figure 3, the embodiment of the present invention also provides a kind of frozen soil flow of water measurement side
Method is specifically included using frozen soil flow of water measuring device described in the various embodiments described above:
Soil sample to be measured is inserted in the first pipe fitting, is compacted after filling up by S1；
Soil sample to be measured is refrigerated to preset temperature using temperature regulating device and forms frozen soil soil sample to be measured by S2；
Flow of water measuring part is mounted on inside the frozen soil soil sample to be measured by S3；
S4 adjusts the temperature of the soil sample to be measured, and the flow of water of frozen soil soil sample to be measured is measured under corresponding temperature.
Wherein, the S3 is specifically included: be drilled with mounting hole in the middle position in the first tubular length direction, and extend to
It surveys inside soil sample, the aperture of mounting hole is identical as the aperture of the probe of flow of water measuring part；
The probe of flow of water measuring part is inserted into frozen soil soil sample to be measured along mounting hole, the shell of flow of water measuring part with
And the intracorporal control circuit board of shell is located at the outside of the first pipe fitting.
Further, between the S3 and S4 further include: coaxially fill the first pipe fitting for being equipped with flow of water measuring part
It is located in the second pipe fitting, filling soil identical with the soil sample to be measured and is compacted between the first pipe fitting and the second pipe fitting.
Further, the S4 is specifically included: being adjusted the temperature of frozen soil soil sample to be measured using temperature regulating device, is adjusted every time pre-
If temperature, after flow of water measuring part and surrounding soil reach balance, the flow of water of frozen soil soil sample to be measured under corresponding temperature is measured.Its
In, the preset temperature adjusted every time can be adjusted setting according to actual test demand.
Specifically, when being measured using the device to the frozen soil flow of water, first simultaneously by configured soil sample filling to be measured
Compacting is freezed in the first pipe fitting 1 using temperature regulating device, freezes soil sample and be maintained at a lower temperature to form jelly to be measured
Soil sample 5.
Then the probe size of one with flow of water measuring part 2 are bored in the tube wall middle position of the first pipe fitting 1 using drill bit
The mounting hole to match, and continue to extend in frozen soil soil sample 5 to be measured, the probe of flow of water measuring part is inserted from the mounting hole
Enter.
The first pipe fitting 1 equipped with frozen soil soil sample 5 to be measured and flow of water measuring part 2 is put into the second pipe fitting 41 being relatively large in diameter
In, the soil of same moisture content is inserted and is compacted among two pipe fittings annular region.
Then entire dress sampling device is placed in progress constant temperature refrigeration between cycle refrigerating plant, with certain temperature gradient liter
High-temperature.Time interval after the every raising certain temperature of temperature determines according to collected flow of water equilibration time, reaches to the flow of water
The flow of water to after balance, in accurate measuring frozen.
The specific implementation procedure of this method embodiment and the specific implementation procedure of above-mentioned apparatus embodiment are identical, and details please join
It is admitted to and states Installation practice, details are not described herein for this method embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of frozen soil flow of water measuring device characterized by comprising the first pipe fitting, flow of water measuring part, temperature regulating device and every
Thermal part, first pipe fitting are interior for filling frozen soil soil sample to be measured；
The temperature regulating device is arranged in the end of first pipe fitting, for controlling the temperature of the frozen soil soil sample to be measured；
The flow of water measuring part is arranged in first pipe fitting, for measuring the flow of water of the frozen soil soil sample to be measured；
The heat insulating member is arranged in the outside of first pipe fitting.
2. frozen soil flow of water measuring device according to claim 1, which is characterized in that the temperature regulating device is circulating frozen dress
It sets, the cycle refrigerating plant includes refrigeration part, and the refrigeration part is arranged in the both ends of first pipe fitting, the freezing
Anti-icing fluid import and anti-icing fluid outlet are provided on component, the anti-icing fluid import with the anti-icing fluid of preset temperature for being connected
It is logical.
3. frozen soil flow of water measuring device according to claim 1 or 2, which is characterized in that the flow of water measuring part is to be situated between
Electric flow of water sensor, the dielectric flow of water sensor include probe, shell and are located at the intracorporal control circuit board of shell, and described the
Mounting hole is offered on the tube wall of one pipe fitting, the flow of water measuring part is fixed in the mounting hole, and the probe is located at institute
It states the inside of the first pipe fitting and the shell is located at the outside of first pipe fitting.
4. frozen soil flow of water measuring device according to claim 1, which is characterized in that the heat insulating member includes the second pipe fitting
And heat-barrier material, second pipe fitting are disposed coaxially on the outside of first pipe fitting, the heat-barrier material is filled in described
Between one pipe fitting and second pipe fitting.
5. frozen soil flow of water measuring device according to claim 4, which is characterized in that the heat-barrier material is heat insulation foam or soil
Earth.
6. frozen soil flow of water measuring device according to claim 3, which is characterized in that the mounting hole is located at first pipe
The middle position of the tube wall of part along its length.
7. a kind of frozen soil flow of water measurement method, using the frozen soil flow of water measuring device as described in any in claim 1 to 6,
It is characterized in that, comprising:
Soil sample to be measured is inserted in the first pipe fitting, is compacted after filling up by S1；
Soil sample to be measured is refrigerated to preset temperature using temperature regulating device and forms frozen soil soil sample to be measured by S2；
Flow of water measuring part is mounted in frozen soil soil sample to be measured by S3；
S4, adjusts the temperature of frozen soil soil sample to be measured using temperature regulating device, measures the flow of water of frozen soil soil sample to be measured under corresponding temperature.
8. frozen soil flow of water measurement method according to claim 7, which is characterized in that opened up on the tube wall of first pipe fitting
There is mounting hole, the S3 is specifically included:
It inwardly drills to frozen soil soil sample to be measured along the mounting hole, by the probe of the flow of water measuring part along the installation
Hole is inserted into the hole of the frozen soil soil sample to be measured.
9. frozen soil flow of water measurement method according to claim 8, which is characterized in that between the S3 and S4 further include:
The first pipe fitting for being equipped with the flow of water measuring part is coaxially installed in the second pipe fitting, in first pipe fitting and
It filling soil identical with the soil sample to be measured and is compacted between two pipe fittings.
10. frozen soil flow of water measurement method according to claim 7, which is characterized in that the S4 is specifically included:
The temperature of frozen soil soil sample to be measured is adjusted using temperature regulating device, after adjusting temperature every time, to flow of water measuring part and surrounding soil
After earth reaches balance, the flow of water of frozen soil soil sample to be measured under corresponding temperature is measured.
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