CN110082388A - The Triaxial tester and its method of thermal coefficient and infiltration coefficient can be measured - Google Patents
The Triaxial tester and its method of thermal coefficient and infiltration coefficient can be measured Download PDFInfo
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- CN110082388A CN110082388A CN201910261696.6A CN201910261696A CN110082388A CN 110082388 A CN110082388 A CN 110082388A CN 201910261696 A CN201910261696 A CN 201910261696A CN 110082388 A CN110082388 A CN 110082388A
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- 238000001764 infiltration Methods 0.000 title claims abstract description 38
- 230000008595 infiltration Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title abstract description 23
- 239000002689 soil Substances 0.000 claims abstract description 102
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 140
- 229920001971 elastomer Polymers 0.000 claims description 55
- 239000012528 membrane Substances 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 40
- 239000004575 stone Substances 0.000 claims description 22
- 239000012530 fluid Substances 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 16
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 238000009529 body temperature measurement Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000010998 test method Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 210000000981 epithelium Anatomy 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Fluid Mechanics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention provides a kind of Triaxial tester that can measure thermal coefficient and infiltration coefficient, by the head environment of three axis soil samples of comparing and establish pressure chamber and to the pressure balanced relationship of test sample, the implementation method of infiltration coefficient has been determined, the direct test of thermal coefficient is realized using comparison method and modified comparison method.A kind of implementation method of Triaxial tester that can measure thermal coefficient and infiltration coefficient is provided simultaneously.Effect of the present invention is principle of device distinctness, method is easy to operate, it realizes and measures different physical and mechanical parameters in same instrument, same soil sample, it can be used for carrying out the Determination of conductive coefficients test of the soil body, the infiltration coefficient testing experiment of saturated soil, convenience can be provided for soil mass water-heat-force parameter test.
Description
Technical field
The invention belongs to geotechnical testament calculating fields, are related to a kind of triaxial test that can measure thermal coefficient and infiltration coefficient
Device and its implementation method can be used for carrying out the thermal coefficient test of the soil body, the infiltration coefficient test of saturated soil.
Background technique
The water conductivity function and heating conduction of soil body pore structure, in energy geotechnical engineering energy stake and earth source heat pump
Construction has basic role.The mechanics of the soil body and thermal property have dramatically different under different conditions, study in triaxial test not
With the thermal coefficient and infiltration coefficient of the soil body, in soil mechanics multi- scenarios method Resolving probiems and engineering problem avoid having
Reference.Triaxial test, infiltration coefficient test, thermal coefficient test etc. are the conventional choosings of determining soil body power-water-heating index
It selects, manpower and material resources is not only wasted by way of taking undisturbed extensively, also greatly tested between different tests operator
Docking capacity.It is difficult in order to reduce undisturbed sampling, reduce equipment acquisition cost, it is necessary to realize by the way of integrated same
Different physical and mechanical parameters is measured in one instrument, same soil sample, so that lifting test measuring accuracy, reduces in soil test
Economic input.
Summary of the invention
1, the purpose of the present invention
The present invention provides a kind of Triaxial tester and its implementation method that can measure thermal coefficient and infiltration coefficient, with reality
Different physical and mechanical parameters is measured in present same instrument, same soil sample.
2, the used technical solution of the present invention
The Triaxial tester of thermal coefficient and infiltration coefficient can be measured the present invention provides one kind, pressure chamber, load bar,
Specific function load cap, specimen mount, upper dankness stone, lower permeable stone, rubber membrane package soil sample, enclose pressure control apparatus, temperature is adopted
Collect equipment, the specific function loads cap, miniature temperature probe, miniature soil sample temperature probe, pressure chamber's temperature probe are measured
Data temperature acquisition equipment is transmitted to by temperature measurement data line；Miniature soil sample temperature probe is passed through and is set gradually from top to bottom
After pressure stabilizing sump, hydraulic pressure cap, fine permeable cover board, upper dankness stone, it is placed in rubber membrane package soil sample, water supplying pipe and pressure stabilizing sump
It is connected；Pressure chamber's temperature probe is placed in specific function load cap top；Miniature temperature probe is placed in pressure stabilizing sump top；It adjusts
Confining pressure temperature encloses pressure control apparatus, places permeable stone in the upper and lower side of rubber membrane package soil sample, will be placed with the rubber of permeable stone
Epithelium package soil sample is placed in the indoor specimen mount of pressure, specific function load cap is placed in permeable in rubber membrane package soil sample
Load bar is connected with the upper end of specific function load cap, will be filled in pressure chamber by enclosing pressure control apparatus by the top of stone
Water.
Further, the specimen mount is built-in with drainpipe, confining pressure pipe, circulation confining pressure pipe, confining pressure sensor, fluid pressure
Strong sensor；Pressure control apparatus will be enclosed to be connected with confining pressure pipe, confining pressure sensor respectively.
Further, further include water consumption measurement equipment, anti-pressure control apparatus, water consumption measurement equipment and specific function are loaded
The water supplying pipe of cap is connected, and anti-pressure control apparatus is connected with fluid pressure sensor, drainpipe respectively, will recycle confining pressure pipe
It is connected with pressure control apparatus is enclosed.
Further, miniature temperature probe is 2 in specific function load cap, symmetrical to be placed in specific function load cap
Portion；Miniature soil sample temperature probe is 2, symmetry through upper dankness stone.
The invention proposes the triaxial test methods that one kind can measure thermal coefficient, in accordance with the following steps:
1) such as above-mentioned Triaxial tester, the confining pressure pipe being connected to pressure chamber and circulation confining pressure pipe are adjusted in pressure chamber
Fluid temperature, making the temperature of the temperature of liquid and rubber membrane package soil sample in pressure chamber, there are 2 DEG C~5 DEG C of temperature differences；
2) temperature value of temperature acquisition equipment record pressure chamber's temperature probe；
3) the miniature survey of left side miniature temperature probe and right side in temperature acquisition equipment record specific function load cap is utilized
Warm probe temperature value, and it is denoted as T respectivelyL、TR；Utilize the miniature soil in left side in temperature acquisition equipment record rubber membrane package soil sample
The temperature value of sample temperature probe and the miniature soil sample temperature probe on right side, and it is denoted as T respectivelysL、TsR；
4) when the temperature of liquid in pressure chamber is more than or equal to 0 DEG C and less than 100 DEG C, thermal coefficient can be according to formula
(1) calculate, when in pressure chamber fluid temperature less than 0 DEG C and be greater than -20 DEG C when, thermal coefficient can be calculated according to formula (2), public affairs
Formula (1) and formula (2) are respectively as follows:
In formula, λ0The thermal conductivity value of cap is loaded for specific function；TfFor the temperature value of pressure chamber's temperature probe；TLFor spy
Distinguished service can load the temperature value of the miniature temperature probe in left side in cap；TRThe miniature thermometric for loading right side in cap for specific function is visited
The temperature value of head；TsLThe temperature value of the miniature soil sample temperature probe in left side in soil sample is wrapped up for rubber membrane；TsRFor rubber membrane package
The temperature value of the miniature soil sample temperature probe on right side in soil sample；THIt is wrapped up for pressure chamber and rubber membrane latent caused by soil sample heat exchange
The equivalent temperature value of heat, the T when the initial temperature of pressure chamber is higher than the temperature of rubber membrane package soil sampleHFor positive value, work as pressure chamber
Initial temperature lower than rubber membrane package soil sample temperature when THFor negative value.
The invention proposes the triaxial test methods that one kind can measure infiltration coefficient, include the following steps:
1) Triaxial tester as described above, using water consumption measurement equipment by water supplying pipe to rubber membrane wrap up soil sample into
Row saturation；
2) stable head amount H is inputted to rubber membrane package soil sample by water supplying pipe using water consumption measurement equipment, using enclosing
Pressure control apparatus adjusts confining pressure sensor and fluid pressure sensor reading is in the same size for pressure pipe external enclosing；
3) displacement that rubber membrane in ts wraps up soil sample is recorded by anti-pressure control apparatus, calculates three axis by formula (3)
Infiltration coefficient under soil sample saturation state, formula (3) are as follows:
In formula (3), ksFor the infiltration coefficient under three axis soil sample saturation states；Q is displacement of the drainpipe in ts；L is
The height of rubber membrane package soil sample；A is the radial section area that rubber membrane wraps up soil sample；H is that water consumption measurement equipment passes through water supply
Pipe inputs stable head amount to rubber membrane package soil sample.
3, beneficial effects of the present invention
The present invention provides Triaxial testers and its implementation method that one kind can measure thermal coefficient and infiltration coefficient, can
For carrying out the Determination of conductive coefficients test of the soil body, the infiltration coefficient testing experiment of saturated soil.The principle of device is distinct, method behaviour
Make simplicity, realizes and measure different physical and mechanical parameters in same instrument, same soil sample.It can be soil mass water-Re-power ginseng
Several tests provides convenience.
Detailed description of the invention
Fig. 1 is the Triaxial tester effect picture that one kind of the invention can measure thermal coefficient and infiltration coefficient；
In figure: 1. pressure chamber, 2. load bar, 3. specific function loads 4. specimen mount of cap, 51. upper dankness stone, under 52.
Permeable stone；6. rubber membrane package soil sample 7. encloses anti-10. temperature of pressure control apparatus of 8. water consumption measurement equipment of pressure control apparatus 9.
Acquire miniature 32. 34. hydraulic pressure cap of miniature 33. temperature measurement data line of soil sample temperature probe of temperature probe, 35. pressure stabilizing of equipment 31.
36. water supplying pipe of sump, 37. 41. drainpipe of fine permeable 38. pressure chamber's temperature probe of cover board, 42. confining pressure pipe 43. circulation
44. confining pressure sensor of confining pressure pipe, 45. fluid pressure sensor
Specific embodiment
Triaxial tester and its implementation of thermal coefficient and infiltration coefficient can be measured to one kind of the invention in conjunction with attached drawing
Method is illustrated.
One kind of the invention can measure the Triaxial tester of thermal coefficient and infiltration coefficient and its implementation method is to be based on:
By the head environment of three axis soil samples of comparing and establish pressure chamber and equilibrium relation to test sample pressure, it is determined that infiltration coefficient
Implementation method realizes the direct test of thermal coefficient using comparison method and modified comparison method.
One kind of the invention can measure the Triaxial tester of thermal coefficient and infiltration coefficient and its implementation method is in this way
It realizes:
A kind of Triaxial tester that can measure thermal coefficient and infiltration coefficient is provided, as shown in Figure 1, it is characterized in that: should
Experimental rig include pressure chamber 1, load bar 2, specific function load cap 3, specimen mount 4, upper dankness stone 51, lower permeable stone 52,
Rubber membrane package soil sample 6 encloses pressure control apparatus 7, water consumption measurement equipment 8, anti-pressure control apparatus 9, temperature acquisition equipment 10；It is described
Specific function load cap 3 include miniature temperature probe 31, it is miniature soil sample temperature probe 32, temperature measurement data line 33, hydraulic pressure cap 34, steady
Pressurized water tank 35, water supplying pipe 36, fine permeable cover board 37, pressure chamber's temperature probe 38, the specimen mount 4 are built-in with drainpipe
41, confining pressure pipe 42, circulation confining pressure pipe 43, confining pressure sensor 44, fluid pressure sensor 45, the pressure control apparatus 7 that encloses have
Confining pressure temperature function is adjusted, permeable stone is placed in the upper and lower side of rubber membrane package soil sample 6, the rubber membrane packet of permeable stone will be placed with
Soil sample 6 is wrapped up in in the specimen mount 4 that is placed in pressure chamber 1, specific function load cap 3 is placed in rubber membrane package soil sample 6 thoroughly
Load bar 2 is connected with the upper end of specific function load cap 3, will enclose pressure control apparatus 7 and pass through tee tube by the top of water stone 51
It is connected respectively with confining pressure pipe 42, confining pressure sensor 44, by the water supplying pipe 36 of water consumption measurement equipment 8 and specific function load cap 3
It is connected, anti-pressure control apparatus 9 is connected with fluid pressure sensor 45, drainpipe 41 respectively by tee tube, by temperature
Acquisition equipment 10 is connected with 33 data line of temperature measurement data line, will fill water in pressure chamber 1 by enclosing pressure control apparatus 7, will follow
Collar pressure pipe 43 is connected with pressure control apparatus 7 is enclosed, that is, thermal coefficient and infiltration coefficient can be measured by forming one kind of the invention
Triaxial tester.
The specific function loads cap 3, inside 2 miniature temperature probes 31 symmetrically merging specific function load cap 3,
Water supplying pipe 36 is connected with pressure stabilizing sump 35, pressure stabilizing sump 35 is connected with hydraulic pressure cap 34, will fine permeable cover board 37 with
Hydraulic pressure cap 34 is connected, and 2 miniature soil sample temperature probes 32 are passed through fine permeable cover board 37 and pass through upper dankness stone 51 and are arranged
In rubber membrane package soil sample 6, pressure chamber's temperature probe 38 is placed in specific function load 3 top of cap, that is, forms the spy
Distinguished service can load cap 3；
A kind of Determination of conductive coefficients implementation method for the Triaxial tester measuring thermal coefficient and infiltration coefficient, the party
The implementation steps of method are as follows:
1) described to assemble a kind of Triaxial tester that measure thermal coefficient and infiltration coefficient, connect using with pressure chamber 1
Logical confining pressure pipe 42 and circulation confining pressure pipe 43 adjusts the fluid temperature in pressure chamber 1, makes the temperature and rubber of liquid in pressure chamber 1
There are 2 DEG C~5 DEG C of temperature differences for the temperature of film package soil sample 6；
2) the temperature acquisition equipment 10 that temperature measurement data line 33 connects is opened, pressure chamber is recorded using temperature acquisition equipment 10 and surveys
The temperature value of temperature probe 38, and it is denoted as Tf；The miniature thermometric in left side in specific function load cap 3 is recorded using temperature acquisition equipment 10
31 temperature value of miniature temperature probe of probe 31 and right side, and it is denoted as T respectivelyL、TR；Rubber is recorded using temperature acquisition equipment 10
Film wraps up the temperature value of the miniature soil sample temperature probe 32 of the miniature soil sample temperature probe 32 and right side in left side in soil sample 6, and divides
T is not denoted as itsL、TsR；
3) when the temperature of liquid in pressure chamber 1 is more than or equal to 0 DEG C and less than 100 DEG C, thermal coefficient can be according to formula
(1) calculate, when in pressure chamber 1 fluid temperature less than 0 DEG C and be greater than -20 DEG C when, thermal coefficient can be calculated according to formula (2),
Formula (1) and formula (2) are respectively as follows:
In formula, λ0The thermal conductivity value of cap 3 is loaded for specific function；TfFor the temperature value of pressure chamber's temperature probe 38；TLFor
Specific function loads the temperature value of the miniature temperature probe 31 in left side in cap 3；TRIt is loaded for specific function miniature on the right side of in cap 3
The temperature value of temperature probe 31；TsLThe temperature value of the miniature soil sample temperature probe 32 in left side in soil sample 6 is wrapped up for rubber membrane；TsR
The temperature value of the miniature soil sample temperature probe 32 on right side in soil sample 6 is wrapped up for rubber membrane；THFor pressure chamber 1 and rubber membrane package soil
Sample 6 exchange heat caused by the equivalent temperature value of latent heat, when the initial temperature of pressure chamber 1 is higher than the temperature of rubber membrane package soil sample 6
When THFor positive value, the T when temperature of the initial temperature of pressure chamber 1 lower than rubber membrane package soil sample 6HFor negative value；
A kind of infiltration coefficient test implementation method for the Triaxial tester measuring thermal coefficient and infiltration coefficient, the party
A kind of implementation steps of method are as follows:
1) a kind of Triaxial tester that can measure thermal coefficient and infiltration coefficient is assembled, and utilizes water consumption measurement equipment 8
Soil sample 6 is wrapped up to rubber membrane by water supplying pipe 3 to be saturated；
2) soil sample 6 is wrapped up to rubber membrane by water supplying pipe 36 using water consumption measurement equipment 8 and inputs stable head amount H, adopted
With confining pressure pipe 42 it is external enclose pressure control apparatus 7 adjust confining pressure sensor 44 and fluid pressure sensor 45 read it is in the same size；
3) displacement that rubber membrane in ts wraps up soil sample 6 is recorded by anti-pressure control apparatus 9, calculates three by formula (3)
Infiltration coefficient under axis soil sample saturation state, formula (3) are as follows:
In formula (3), ksFor the infiltration coefficient under three axis soil sample saturation states；Q is displacement of the drainpipe 41 in ts；L
The height of soil sample 6 is wrapped up for rubber membrane；A is the radial section area that rubber membrane wraps up soil sample 6；H is that water consumption measurement equipment 8 passes through
Water supplying pipe 36 inputs stable head amount to rubber membrane package soil sample 6.
The foregoing is merely combination, this manufacturing process is illustrated, for the practical application of this field, the present invention
Can there are various change and change.All within the spirits and principles of the present invention, made modification, equivalent replacement, improvement etc.,
It should be included within protection scope of the present invention.
Claims (6)
1. one kind can measure the Triaxial tester of thermal coefficient and infiltration coefficient, pressure chamber (1), load bar (2), specific function
Load cap (3), specimen mount (4), upper dankness stone (51), lower permeable stone (52), rubber membrane package soil sample (6), confining pressure control are set
Standby (7), temperature acquisition equipment (10), it is characterised in that: the specific function loads cap (3), by miniature temperature probe (31), micro-
The data that type soil sample temperature probe (32), pressure chamber's temperature probe (38) measure are transmitted to temperature by temperature measurement data line (33) and adopt
Collect equipment (10)；Miniature soil sample temperature probe (32) pass through set gradually from top to bottom pressure stabilizing sump (35), hydraulic pressure cap (34),
It after fine permeable cover board (37), upper dankness stone (51), is placed in rubber membrane package soil sample (6), water supplying pipe (36) and pressure stabilizing sump
(35) it is connected；Pressure chamber's temperature probe (38) is placed in specific function load cap (3) top；Miniature temperature probe (31) is placed in surely
Pressurized water tank (35) top；Adjust confining pressure temperature encloses pressure control apparatus (7), places in the upper and lower side of rubber membrane package soil sample (6)
The rubber membrane for being placed with permeable stone package soil sample (6) is placed in the specimen mount (4) in pressure chamber (1) by permeable stone, will be special
Function load cap (3) is placed in the top of rubber membrane package soil sample (6) upper dankness stone (51), and load bar (2) is added with specific function
The upper end for carrying cap (3) is connected, and will fill water in pressure chamber (1) by enclosing pressure control apparatus (7).
2. the Triaxial tester of thermal coefficient and infiltration coefficient can be measured as described in claim 1, it is characterised in that: described
Specimen mount (4) is built-in with drainpipe (41), confining pressure pipe (42), circulation confining pressure pipe (43), confining pressure sensor (44), fluid pressure
Sensor (45)；Pressure control apparatus (7) will be enclosed to be connected with confining pressure pipe (42), confining pressure sensor (44) respectively.
3. the Triaxial tester of thermal coefficient and infiltration coefficient can be measured as claimed in claim 2, it is characterised in that: also wrap
Water consumption measurement equipment (8), anti-pressure control apparatus (9) are included, by the water supply of water consumption measurement equipment (8) and specific function load cap (3)
Pipe (36) is connected, and anti-pressure control apparatus (9) is connected with fluid pressure sensor (45), drainpipe (41) respectively, will be followed
Collar pressure pipe (43) is connected with pressure control apparatus (7) is enclosed.
4. the Triaxial tester of thermal coefficient and infiltration coefficient can be measured as described in claim 1, it is characterised in that: special
It is 2 that function, which loads miniature temperature probe (31) in cap (3), and symmetrical merging specific function load cap (3) is internal；Miniature soil sample is surveyed
Temperature probe (32) is 2, symmetry through upper dankness stone (51).
5. the triaxial test method that one kind can measure thermal coefficient, it is characterised in that in accordance with the following steps:
1) Triaxial tester as described in claim 1-4 is any, the confining pressure pipe (42) and circulation being connected to pressure chamber (1) enclose
Pressure pipe (43) adjusts the fluid temperature in pressure chamber (1), makes the temperature of liquid and rubber membrane package soil sample (6) in pressure chamber (1)
Temperature there are 2 DEG C~5 DEG C of temperature differences；
2) temperature value of temperature acquisition equipment (10) record pressure chamber's temperature probe (38)；
3) the miniature temperature probe (31) in left side in temperature acquisition equipment (10) record specific function load cap (3) and right side are utilized
Miniature temperature probe (31) temperature value, and it is denoted as T respectivelyL、TR；Soil sample is wrapped up using temperature acquisition equipment (10) record rubber membrane
(6) temperature value of the miniature soil sample temperature probe (32) of the miniature soil sample temperature probe (32) and right side in left side in, and remember respectively
For TsL、TsR；
4) when the temperature of liquid in pressure chamber (1) is more than or equal to 0 DEG C and less than 100 DEG C, thermal coefficient can be according to formula (1)
Calculate, when in pressure chamber (1) fluid temperature less than 0 DEG C and be greater than -20 DEG C when, thermal coefficient can be calculated according to formula (2), public affairs
Formula (1) and formula (2) are respectively as follows:
In formula, λ0The thermal conductivity value of cap (3) is loaded for specific function；TfFor the temperature value of pressure chamber's temperature probe (38)；TLFor
Specific function loads the temperature value of the miniature temperature probe (31) in left side in cap (3)；TRRight side in cap (3) is loaded for specific function
Miniature temperature probe (31) temperature value；TsLThe miniature soil sample temperature probe (32) in left side in soil sample (6) is wrapped up for rubber membrane
Temperature value；TsRThe temperature value of the miniature soil sample temperature probe (32) on right side in soil sample (6) is wrapped up for rubber membrane；THFor pressure chamber
(1) the equivalent temperature value of latent heat caused by exchanging heat with rubber membrane package soil sample (6), when the initial temperature of pressure chamber (1) is higher than
T when rubber membrane wraps up the temperature of soil sample (6)HFor positive value, soil sample (6) are wrapped up when the initial temperature of pressure chamber (1) is lower than rubber membrane
Temperature when THFor negative value.
6. the triaxial test method according to claim 5 for measuring infiltration coefficient, it is characterised in that include the following steps:
1) using the Triaxial tester as described in claim 1-4 is any, pass through water supplying pipe using water consumption measurement equipment (8)
(3) rubber membrane package soil sample (6) is saturated；
2) stable head amount H is inputted to rubber membrane package soil sample (6) by water supplying pipe (36) using water consumption measurement equipment (8),
Confining pressure sensor (44) and fluid pressure sensor (45) reading are adjusted using confining pressure pipe (42) external enclose pressure control apparatus (7)
It is in the same size；
3) displacement that rubber membrane package soil sample (6) in t s is recorded by anti-pressure control apparatus (9) calculates three by formula (3)
Infiltration coefficient under axis soil sample saturation state, formula (3) are as follows:
In formula (3), ksFor the infiltration coefficient under three axis soil sample saturation states；Q is the displacement of drainpipe (41) in t s；L is
Rubber membrane wraps up the height of soil sample (6)；A is the radial section area that rubber membrane wraps up soil sample (6)；H is water consumption measurement equipment (8)
Stable head amount is inputted to rubber membrane package soil sample (6) by water supplying pipe (36).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261696.6A CN110082388B (en) | 2019-04-02 | 2019-04-02 | Triaxial test device and method capable of measuring heat conductivity coefficient and permeability coefficient |
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| CN201910261696.6A CN110082388B (en) | 2019-04-02 | 2019-04-02 | Triaxial test device and method capable of measuring heat conductivity coefficient and permeability coefficient |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083029A (en) * | 2020-08-13 | 2020-12-15 | 四川士达特种炭材有限公司 | Device and method for evaluating comprehensive performance of filler |
| CN112798488A (en) * | 2020-12-29 | 2021-05-14 | 苏州汇才土水工程科技有限公司 | Device and method for transient measurement of permeability coefficient |
| CN113702429A (en) * | 2021-07-16 | 2021-11-26 | 浙江大学 | Saturated sandy soil permeability-heat conductivity index testing device and measuring method thereof |
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| 陈卫忠 等: "黏土岩温度-渗流-应力耦合特性试验与本构模型研究进展", 《岩土力学》 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112083029A (en) * | 2020-08-13 | 2020-12-15 | 四川士达特种炭材有限公司 | Device and method for evaluating comprehensive performance of filler |
| CN112798488A (en) * | 2020-12-29 | 2021-05-14 | 苏州汇才土水工程科技有限公司 | Device and method for transient measurement of permeability coefficient |
| CN113702429A (en) * | 2021-07-16 | 2021-11-26 | 浙江大学 | Saturated sandy soil permeability-heat conductivity index testing device and measuring method thereof |
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| CN110082388B (en) | 2021-12-10 |
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