CN104360164B - Device and method for testing impedance of soil mass under different temperature paths - Google Patents
Device and method for testing impedance of soil mass under different temperature paths Download PDFInfo
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- CN104360164B CN104360164B CN201410763170.5A CN201410763170A CN104360164B CN 104360164 B CN104360164 B CN 104360164B CN 201410763170 A CN201410763170 A CN 201410763170A CN 104360164 B CN104360164 B CN 104360164B
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- temperature
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- controlled cabinet
- copper coin
- impedance
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Abstract
The invention discloses a device and a method for testing impedance of soil mass under different temperature paths. The device comprises an internal sample supporting table and a sealed thermal insulation container with a vacuum wiring access and a vacuum pump connector on top, wherein an upper wood board, an upper temperature control box, an upper copper plate, a sample block, a lower copper plate, a lower temperature control box and a lower wood board are arranged on the supporting table from top to bottom in sequence. During a test, the device and the method are used for regulating the temperatures of the upper and the lower temperature control boxes, and can be used for recording a curve, which changes with time, of the impedance in a temperature conduction process as well as a curve, which changes with the time, of the temperature by virtue of an electrochemical workstation and a temperature measuring system. The device disclosed by the invention is scientific in design, simple in structure, simple to operate, strong in practicability and capable of measuring the impedance of the soil mass under different temperature paths by stimulating a plurality of temperature environments.
Description
Background technology
The present invention relates to soil impedance technical field of measurement and test, tests soil body impedance under specifically a kind of different temperatures path
Device and method of testing.
Background technology
The soil body is a kind of multiphase heterogeneous system being made up of solid, liquid, gas, and its property is considerably complicated.Impedance
It is in the circuit with resistance, inductance and electric capacity, for analyzing the structure and property of system.The impedance of the soil body is except can be very
Reflect well the basic physical mechanics properties of the soil body, water content, void ratio such as the soil body, saturation, compactness, salinity, also
The structure and properties feature that can reflect between inside soil body solid-liquid-gas phase three, such as matric suction, volumetric(al) moisture content,
Solid-liquid interface electric capacity, resistance etc..
At present, for the research of soil body impedance is not directed to the test under temperature paths, most of research is only limited to a certain
Under fixed temperature, the situation of change of temperature transfer process middle impedance is not really considered.With the increasing of underground engineering scale, soil
Body structure and property are affected by the natural environmental condition of location and locality, such as climate change, change of seasons situation, round the clock
The situation of change of temperature, ground temperature situation of change in alternately.Cause soil structures and qualitative change pass through test by temperature change
Soil body impedance is characterizing.
The content of the invention
The invention aims to provide the device and method of testing that soil body impedance is tested under a kind of different temperatures path.
The present invention accurately records the change of soil body impedance under different temperatures path using electrochemical workstation, by impedance circuit parameter
Come the structure and nature and characteristic that reflect with study the soil body, use for engineering design.
The present invention is achieved through the following technical solutions：
The device of soil body impedance is tested under a kind of different temperatures path, it is including the sealed thermal insulating container in rectangular-shape, close
Close；Examination is fixed with base plate in sealed thermal insulating container
Sample cushion cap（Sample cushion cap can prevent sample directly with sealed thermal insulating container directly contact, occur conduction of heat, dissipated heat）, sample
Lower plank is mounted with cushion cap, lower temperature-controlled cabinet on lower plank, is mounted with, lower copper coin, lower copper on lower temperature-controlled cabinet, is mounted with
Coupon is mounted with plate, copper coin on coupon, is mounted with, temperature-controlled cabinet, upper temperature-controlled cabinet on upper copper coin, is mounted with
On be mounted with plank；Wherein, fishbolt is designed with upper and lower plank, and upper plank, upper temperature-controlled cabinet, upper copper coin,
Coupon, lower copper coin, lower temperature-controlled cabinet and lower plank are in close contact in the presence of fishbolt；Upper and lower copper coin is used as resistance
Anti- test electrode, and critesistor, upper and lower copper coin and critesistor are designed with the center of upper and lower copper coin inwall
All it is connected with wire and wire is passed from vacuum connection jaws；Four sides of coupon are provided with a circle adiabator, prevent
Its dissipated heat；The both sides of upper and lower temperature-controlled cabinet are designed with venting channels, are input into hot and cold air by venting channels and reach temperature
The purpose of degree control, the temperature environment that upper and lower two temperature-controlled cabinets are provided are -30 DEG C～50 DEG C, and precision is ± 0.1 DEG C.
It is a kind of by said apparatus testing the method for testing of soil body impedance under different temperatures path, comprise the steps：
1）With 3 coupons of the same preparation of soil sample, the size of coupon is L（It is long）×B（It is wide）×H（It is high）：20cm×
20cm × 10cm, on four sides of every piece of coupon arranges a circle adiabator, prevents its dissipated heat；
2）First block coupon is put in test device, makes critesistor temp measuring system be connected by wire, it is upper and lower
Copper coin connects electrochemical workstation by wire, and upper and lower temperature-controlled cabinet connects heating apparatuss, vacuum by respective venting channels
Pump interface connects vacuum pump；Detection sealed thermal insulating container air-tightness, afterwards open vacuum pump cause in sealed thermal insulating container be
Vacuum state, to reduce heat transfer；
3）Start upper and lower temperature-controlled cabinet, make upper and lower temperature-controlled cabinet be warmed to T2, T1, wherein T2 respectively>T1, passes through
Electrochemical workstation and temp measuring system are recorded in the time dependent curve of temperature conduction process middle impedance, and temperature is with the time
The curve of change；
4）Take out first piece of coupon, change second piece of coupon and be put in test device, make upper and lower temperature-controlled cabinet while
T2 is warmed to, is recorded in the time dependent curve of temperature conduction process middle impedance by electrochemical workstation and temp measuring system,
And the time dependent curve of temperature；
5）Second piece of coupon is taken out, the 3rd piece of coupon is changed and is put in test device, first make upper and lower temperature-controlled cabinet same
When be warmed to T2, then make temperature-controlled cabinet be cooled to T1, wherein T2>T1, is recorded by electrochemical workstation and temp measuring system
In the time dependent curve of temperature conduction process middle impedance, and the time dependent curve of temperature.
It is apparatus of the present invention design science, simple structure, simple to operate, practical, can measure under different temperatures path
The impedance of the soil body, can simulate various temperature environment, be particularly well-suited to the impedance measurement of the temperature change area soil body, and by resistance
Reactive circuit parameter is characterizing the physics of the soil body, mechanics and electrology characteristic under different temperatures path.
Description of the drawings
Structural representations of the Fig. 1 for apparatus of the present invention.
In figure：Plank, 6- under 1- sealed thermal insulating containers, 2- vacuum connection jaws, 3- vacuum pump interfaces, 4- sample cushion caps, 5-
Under lower temperature-controlled cabinet, 7-, copper coin, 8- coupons, the upper copper coins of 9-, the upper temperature-controlled cabinets of 10-, the upper planks of 11-, 12- clamp spiral shell
Bolt, 13- critesistor, 14- venting channels.
Specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described：
As shown in figure 1, the device of soil body impedance under a kind of different temperatures path, is tested, including the closed guarantor in rectangular-shape
Warm container 1, offers vacuum connection jaws 2 and vacuum pump interface 3 on the lid of sealed thermal insulating container 1；In sealed thermal insulating container 1
Sample cushion cap 4 is fixed with base plate, lower plank 5 is mounted with sample cushion cap 4, on lower plank 5, lower temperature-controlled cabinet 6 is mounted with,
Lower copper coin 7 is mounted with lower temperature-controlled cabinet 6, coupon 8 is mounted with lower copper coin 7, copper coin 9 on coupon 8, is mounted with, on
Temperature-controlled cabinet 10 is mounted with copper coin 9, plank 11 on upper temperature-controlled cabinet 10, is mounted with；Wherein, upper and lower plank 11,5
On be designed with fishbolt 12, and upper plank 11, upper temperature-controlled cabinet 10, upper copper coin 9, coupon 8, lower copper coin 7, lower temperature
Control chamber 6 and lower plank 5 are in close contact in the presence of fishbolt 12；Upper and lower copper coin 9,7 as testing impedance electrode, and
And critesistor 13 is designed with the center of upper and lower copper coin 9,7 inwalls, upper and lower copper coin 9,7 and critesistor 13 all connect
It is connected to wire and wire is passed from vacuum connection jaws；Four sides of coupon 8 are provided with a circle adiabator；Upper and lower temperature
The both sides of degree control chamber 10,6 are designed with venting channels 14；Wherein, upper and lower temperature-controlled cabinet 10,6 provide temperature environment for-
30 DEG C～50 DEG C, precision is ± 0.1 DEG C.
The method of testing of soil body impedance under different temperatures path is tested by said apparatus, is comprised the steps：
1）With 3 coupons 8 of the same preparation of soil sample, the size of coupon 8 is L × B × H (cm):20 × 20 × 10, every
On four sides of block coupon 8, a circle adiabator is all set；
2）First block coupon 8 is put in test device, makes critesistor 13 temp measuring system be connected by wire,
Upper and lower copper coin 9,7 connects electrochemical workstation by wire, and upper and lower temperature-controlled cabinet 10,6 passes through respective venting channels 15
Heating apparatuss are connect, vacuum pump interface 3 connects vacuum pump；The air-tightness of detection sealed thermal insulating container 1, opens vacuum pump afterwards and causes
It is vacuum state in sealed thermal insulating container 1, to reduce heat transfer；
3）Start upper and lower temperature-controlled cabinet 10,6, make upper and lower temperature-controlled cabinet 10,6 be warmed to T2, T1, wherein T2 respectively
>T1, is recorded in the time dependent curve of temperature conduction process middle impedance, Yi Jiwen by electrochemical workstation and temp measuring system
Spend time dependent curve；
4）First piece of coupon 8 is taken out, second piece of coupon 8 is changed and is put in test device, make upper and lower temperature-controlled cabinet
10th, 6 it is warmed to T2 simultaneously, is changed in temperature conduction process middle impedance by electrochemical workstation and temp measuring system record
Curve, and the time dependent curve of temperature；
5）Second piece of coupon 8 is taken out, the 3rd piece of coupon 8 is changed and is put in test device, first make upper and lower temperature-controlled cabinet
10th, 6 T2 is warmed to simultaneously, then make temperature-controlled cabinet 10 be cooled to T1, wherein T2>T1, by electrochemical workstation and thermometric
System is recorded in the time dependent curve of temperature conduction process middle impedance, and the time dependent curve of temperature.
Claims (1)
1. the device of soil body impedance is tested under a kind of path by different temperatures testing soil body impedance under different temperatures path
Method of testing, it is characterised in that：
The device of soil body impedance is tested under different temperatures path, including the sealed thermal insulating container in rectangular-shape（1）, sealed thermal insulating
Container（1）Lid on offer vacuum connection jaws（2）And vacuum pump interface（3）；Sealed thermal insulating container（1）It is solid on interior base plate
Surely there is sample cushion cap（4）, sample cushion cap（4）On be mounted with lower plank（5）, lower plank（5）On be mounted with lower temperature-controlled cabinet
（6）, lower temperature-controlled cabinet（6）On be mounted with lower copper coin（7）, lower copper coin（7）On be mounted with coupon（8）, coupon（8）Upper peace
It is equipped with copper coin（9）, upper copper coin（9）On be mounted with temperature-controlled cabinet（10）, upper temperature-controlled cabinet（10）On be mounted with overwood
Plate（11）；Wherein, upper and lower plank（11、5）On be designed with fishbolt（12）, and upper plank（11）, upper temperature-controlled cabinet
（10）, upper copper coin（9）, coupon（8）, lower copper coin（7）, lower temperature-controlled cabinet（6）With lower plank（5）In fishbolt（12）'s
Effect is lower to be in close contact；Upper and lower copper coin（9、7）As testing impedance electrode, and in upper and lower copper coin（9、7）The center of inwall
Position is designed with critesistor（13）, upper and lower copper coin（9、7）And critesistor（13）All it is connected with wire and wire is from true
Empty connection jaws are passed；Coupon（8）Four sides be provided with a circle adiabator；Upper and lower temperature-controlled cabinet（10、6）Two
Side is designed with venting channels（14）；
Method of testing comprises the steps：
1）With 3 coupons of the same preparation of soil sample（8）, coupon（8）Size be L × B × H (cm):20 × 20 × 10, every
Block coupon（8）Four sides on a circle adiabator is all set；
2）By first piece of coupon（8）It is put in test device, makes critesistor（13）Temp measuring system is connected by wire, above,
Lower copper coin（9、7）Electrochemical workstation, upper and lower temperature-controlled cabinet are connected by wire（10、6）By respective venting channels
（14）Connect heating apparatuss, vacuum pump interface（3）Connect vacuum pump；Detection sealed thermal insulating container（1）Air-tightness, open afterwards true
Empty pump causes sealed thermal insulating container（1）It is interior for vacuum state, to reduce heat transfer；
3）Start upper and lower temperature-controlled cabinet（10、6）, make upper and lower temperature-controlled cabinet（10、6）T2, T1, wherein T2 are warmed to respectively
>T1, is recorded in the time dependent curve of temperature conduction process middle impedance, Yi Jiwen by electrochemical workstation and temp measuring system
Spend time dependent curve；
4）Take out first piece of coupon（8）, change second piece of coupon（8）It is put in test device, makes upper and lower temperature-controlled cabinet
（10、6）T2 is warmed to simultaneously, by electrochemical workstation and temp measuring system record in temperature conduction process middle impedance anaplasia at any time
The curve of change, and the time dependent curve of temperature；
5）Take out second piece of coupon（8）, change the 3rd piece of coupon（8）It is put in test device, first makes upper and lower temperature-controlled cabinet
（10、6）It is warmed to T2 simultaneously, then makes temperature-controlled cabinet（10）It is cooled to T1, wherein T2>T1, by electrochemical workstation and
Temp measuring system is recorded in the time dependent curve of temperature conduction process middle impedance, and the time dependent curve of temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763170.5A CN104360164B (en) | 2014-12-13 | 2014-12-13 | Device and method for testing impedance of soil mass under different temperature paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410763170.5A CN104360164B (en) | 2014-12-13 | 2014-12-13 | Device and method for testing impedance of soil mass under different temperature paths |
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| Publication Number | Publication Date |
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| CN104360164A CN104360164A (en) | 2015-02-18 |
| CN104360164B true CN104360164B (en) | 2017-04-12 |
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| CN201410763170.5A Expired - Fee Related CN104360164B (en) | 2014-12-13 | 2014-12-13 | Device and method for testing impedance of soil mass under different temperature paths |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771615B (en) * | 2016-11-25 | 2019-09-03 | 江苏科技大学 | A kind of soil body electrical conductance and permeability multipurpose test system and test method |
| CN109187653B (en) * | 2018-08-13 | 2019-07-12 | 西南交通大学 | The Horizontal Layer Soil dynamic electric resistor characteristic test method of meter and different temperatures |
| CN109188090B (en) * | 2018-08-13 | 2019-11-05 | 西南交通大学 | The nonlinear test method of different humidity electric resistance of soil in vertical demixing soil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103489A (en) * | 1993-12-01 | 1995-06-07 | 石油大学(北京) | Complex resistance measuring system for rock sample on condition of simulating high temp. and pressure in strata |
| CN2685873Y (en) * | 2004-03-29 | 2005-03-16 | 昆明物理研究所 | Pyroelectric coefficient tester by dynamic method |
| CN203133173U (en) * | 2013-02-28 | 2013-08-14 | 青海省雷电灾害防御中心 | Device for testing soil resistivity change under artificial environment |
| CN103513109A (en) * | 2013-09-05 | 2014-01-15 | 南开大学 | Device and method for measuring in-situ soil electric conductivity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004333265A (en) * | 2003-05-07 | 2004-11-25 | Furukawa Electric Co Ltd:The | Method and apparatus for continuously measuring temperature dependence characteristics of electric electronic component |
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2014
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103489A (en) * | 1993-12-01 | 1995-06-07 | 石油大学(北京) | Complex resistance measuring system for rock sample on condition of simulating high temp. and pressure in strata |
| CN2685873Y (en) * | 2004-03-29 | 2005-03-16 | 昆明物理研究所 | Pyroelectric coefficient tester by dynamic method |
| CN203133173U (en) * | 2013-02-28 | 2013-08-14 | 青海省雷电灾害防御中心 | Device for testing soil resistivity change under artificial environment |
| CN103513109A (en) * | 2013-09-05 | 2014-01-15 | 南开大学 | Device and method for measuring in-situ soil electric conductivity |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Pengju Inventor after: Zhang Xuelan Inventor after: He Bin Inventor after: Liu Jianping Inventor after: Zhao Yongfeng Inventor after: Guo Yonghui Inventor after: Wang Xinyu Inventor after: Yan Yibo Inventor after: Liang Dawei Inventor after: Qi Jincheng Inventor after: Hao Zhipeng Inventor after: Wang Maosang Inventor after: Zhang Yafen Inventor after: Dong Xiaoqiang Inventor after: Bai Xiaohong Inventor before: Han Pengju Inventor before: Zhao Yongfeng Inventor before: Guo Yonghui Inventor before: Wang Xinyu Inventor before: Zhang Yafen Inventor before: Liang Dawei Inventor before: Wang Maosang Inventor before: Dong Xiaoqiang Inventor before: Bai Xiaohong Inventor before: Zhang Xuelan Inventor before: He Bin Inventor before: Liu Jianping |
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Granted publication date: 20170412 Termination date: 20201213 |