CN106323720A - Soft soil microstructure sample preparation device - Google Patents
Soft soil microstructure sample preparation device Download PDFInfo
- Publication number
- CN106323720A CN106323720A CN201611032467.XA CN201611032467A CN106323720A CN 106323720 A CN106323720 A CN 106323720A CN 201611032467 A CN201611032467 A CN 201611032467A CN 106323720 A CN106323720 A CN 106323720A
- Authority
- CN
- China
- Prior art keywords
- free position
- position rotating
- liquid nitrogen
- sampling
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002689 soil Substances 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000005070 sampling Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 27
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 239000011540 sensing material Substances 0.000 claims abstract description 5
- 238000010792 warming Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 13
- 239000002184 metal Substances 0.000 claims description 12
- 239000008393 encapsulating agent Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 7
- 238000007710 freezing Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229950000845 politef Drugs 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a soft soil microstructure sample preparation device which comprises a sampling device, a liquid nitrogen heat insulation tank and a peristaltic pump, wherein the sampling device and the peristaltic pump are respectively communicated with the liquid nitrogen heat insulation tank through hoses. When in operation, the sampling device is inserted into soil by closing and opening a locking mechanism, a microstructure sampling bin device reaches a designated position, a valve of the peristaltic pump is opened, liquid nitrogen in the liquid nitrogen heat insulation tank is pressed into a liquid nitrogen cavity by pressure, thermo sensitive color-changing volatile liquid in a closed temperature sensing cavity changes along with soil temperature, color change of the outer wall of the cavity is displayed by observing outer wall temperature sensing materials of an upper cavity, a soil sample is taken out by the microstructure sampling bin device, and sampling is finished. Operation of manual sample cutting is avoided, sampling efficiency and accuracy are improved, cost is effectively saved, experimental efficiency is improved, the soil sample is not destroyed, and microstructures of different positions of the soil are observed by determining the position of the cut soil sample.
Description
Technical field
The present invention relates to Soil Microstructure studying technological domain, particularly to a kind of soft soil microstructure sample preparation device.
Background technology
The soil body is a kind of structure gonosome, and the microstructure of the soil body has interwoveness to macromechanical properties such as its intensity
Contact, meanwhile, microstructure and soil body engineering characteristic have direct restricting relation, can be come by the structure Changing Pattern of soil
Solve the engineering properties of soil, resolve engineering Macro Problems from the angle of microexamination soil deformation.The microstructure of soil is very
Complicated, in the bulk information data obtained, the directivity information of soil microstructure is also highly important, local soil type's structure each
The item opposite sex can directly result in the anisotropy of soil body permeability, therefore, how to ensure to reduce the disturbance to soil body original state pattern, has
Effect quickly preparation has the Soil Microstructure sample of certain orientation, important in inhibiting in Soil Microstructure is studied.
At present, the sample preparation effort of domestic Soil Microstructure obtains substantial improvements, successfully develops vacuum freezing and does
Dry instrument, can freeze soil pore water rapidly, form the amorphous ice without volumetric expansion, reduce dehydration shrinkage to the soil body
The destruction of microstructure.But, the sample preparation device of prior art is in microstructure sampling process, when sample is cut in weak soil sample preparation, with reality
Border also exists the biggest error, and some weak soil fine grained is more, and moisture content is higher, artificially break into two with one's hands sample or cut sample be difficult to system
Size of making stipulations and the good undisturbed soil microstructure sample of directionality.
Summary of the invention
In place of it is an object of the invention to be to solve above-mentioned the deficiencies in the prior art, and provide a kind of soft soil microstructure system
The microcosmic sample of the weak soils such as sample device, makes landslide slip by this sample preparation device, barged-in fill, can not destroy the structure of the original state soil body
Property, soft soil microstructure sample can be cut out rapidly in guarantee again.
The present invention is made up of sampler, liquid nitrogen heat insulation tank and peristaltic pump, and sampler and peristaltic pump are respectively by soft
Pipe is connected with liquid nitrogen heat insulation tank, and described flexible pipe has metal joint；
Described sampler lower end has liquid nitrogen chamber and airtight warming chamber, and upper end has sleeve pipe and free position rotating fills
Putting, free positioning rotation device is arranged on sleeve pipe, and airtight warming chamber is arranged on its lower end, and wraps up casing part, liquid nitrogen
Chamber is arranged on outside airtight warming cavity outer wall；
Described liquid nitrogen chamber intracavity all scribbles encapsulant, has metal interface, metal joint and metal on the outer wall in chamber
Interface matches；
Described encapsulant is politef；
Filling heat-sensitive variable colour volatilised liq in the cavity of described airtight warming chamber, chamber outer wall and end face scribble temperature sensing material；
Described inside pipe casing tube wall is smooth, and sleeve pipe has the first graduation mark, in units of mm on the top in airtight warming chamber
Scale；
Described free positioning rotation device includes that free position rotating plane control dish, free position rotating axle, microcosmic are tied
Structure sampling bin device, free position rotating axle sleeve, locking mechanism and pressing handle, free position rotating axle is arranged on free location
In rotary sleeve, free position rotating plane control dish is arranged on pressing handle, and free position rotating axle sleeve is fixedly installed on
Pressing handle, at its lower end, free position rotating axle sleeve is arranged in sleeve pipe, and microstructure sampling bin device is fixedly installed on freely to be determined
In the rotary shaft of position, free position rotating axle is fixedly installed on free position rotating plane control dish lower end, and locking mechanism is fixing to be set
Put at free position rotating axle sleeve and cannula connection, described free position rotating axle sleeve has the second graduation mark, with mm is
The scale of unit；
Described free position rotating plane control dish is divided into inner disc and outer disk, and inner disc has hands handle, and outer disk outer ring has
Marking line, inner disc center has pointer, inner disc and outer disk and matches, and free position rotating axle is fixedly installed on inner disc lower end,
Outer disk is fixedly installed on pressing handle；
Described microstructure sampling bin device includes depression bar, link assembly and sampling storehouse, and depression bar is arranged on and freely positions rotation
In rotating shaft, link assembly is arranged on depression bar lower end, and sampling storehouse is fixedly installed on link assembly one end, and described sampling storehouse is open-type
Cuboid, outside is cutting edge shape.
The operation principle of the present invention and process:
During work, close locking mechanism, sampler is inserted in soil, and arrive needed for the first graduation mark at numerical value, so
After carry out microcosmic soil sample choose location, open locking mechanism, by handle rotation inner disc, make value bit needed for indicators turn
Putting, free position rotating axle rotates, and microstructure sampling bin device forwards specify orientation, lower pressure pressing handle to, freely positions rotation
After rotating shaft set is pressed onto at requisite number value, closes locking mechanism, then open peristaltic pump valve, by pressure by liquid nitrogen heat insulation tank
Liquid nitrogen press-in liquid nitrogen chamber, heat-sensitive variable colour volatilised liq in airtight warming chamber changes because of the change of soil temperature, then passes through
Observing upper chambers outer wall temperature sensing material and demonstrate the color change of chamber outer wall, sampling after ten minutes is in order to allow soil
Pore water quick freezing, forms the ice of the non-crystalline without volumetric expansion, and airtight warming chamber is become black powder by pellucidity
State, proves soil body cooling after colour stable, be not susceptible to change of shape, lower moulded rod, by link assembly, sample storehouse level side
To extrusion, sample soil enters in sampling storehouse from opening part, retracts depression bar, and retracting in sampling storehouse, is then turned off peristaltic pump, takes out microcosmic knot
Structure sampling bin device, takes out soil sample, and sampling terminates.
Beneficial effects of the present invention:
1, avoid the operation manually cutting sample, improve the Efficiency and accuracy of sampling, effectively save cost, improve experiment
Efficiency, does not destroy soil sample；
2, determined by free positioning rotation device and cut the position of soil sample, be beneficial to the microcosmic at soil body different azimuth
Structure is observed, and preferably carries out experimentation；
3, this sampler drives liquid nitrogen by peristaltic pump, makes soil sample quick freezing, it is achieved that freeze in soil sample in instrument
In the case of directly cut sample.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the partial structurtes schematic diagram of free position rotating plane control dish of the present invention.
Detailed description of the invention
Referring to shown in Fig. 1 and Fig. 2, the present invention is made up of sampler 1, liquid nitrogen heat insulation tank 2 and peristaltic pump 3, sampling
Device 1 is connected with liquid nitrogen heat insulation tank 2 by flexible pipe 4 respectively with peristaltic pump 3, and described flexible pipe 4 has metal joint 41；
Described sampler 1 lower end has liquid nitrogen chamber 11 and airtight warming chamber 12, and upper end has sleeve pipe 13 and freely positions
Rotary apparatus 14, free positioning rotation device 14 is arranged on sleeve pipe 13, and airtight warming chamber 12 is arranged on sleeve pipe 13 lower end, and wraps
Wrapping up in sleeve pipe 13 bottom, liquid nitrogen chamber 11 is arranged on outside the outer wall of airtight warming chamber 12；
Described liquid nitrogen chamber 11 intracavity all scribbles encapsulant, has metal interface 111, metal joint 41 on the outer wall in chamber
Match with metal interface 111；
Described encapsulant is politef；
Filling heat-sensitive variable colour volatilised liq in the cavity of described airtight warming chamber 12, chamber outer wall and end face scribble temperature-sensitive material
Material；
Described sleeve pipe 13 inner pipe wall is smooth, and sleeve pipe 13 has the first graduation mark 131 on the top in airtight warming chamber；
Described free positioning rotation device 14 includes free position rotating plane control dish 141, free position rotating axle
142, microstructure sampling bin device 143, free position rotating axle sleeve 144, locking mechanism 145 and pressing handle 146, freely determine
Position rotary shaft 142 is arranged in free position rotating axle sleeve 144, and free position rotating plane control dish 141 is arranged on pressing hands
On handle 146, free position rotating axle sleeve 144 is fixedly installed on pressing handle 146 lower end, and free position rotating axle sleeve 144 is arranged
In sleeve pipe 13, microstructure sampling bin device 143 is fixedly installed in free position rotating axle 142, free position rotating axle
142 are fixedly installed on free position rotating plane control dish 14 lower end, and locking mechanism 145 is fixedly installed on free position rotating axle
Set 144 and sleeve pipe 13 junction, described free position rotating axle sleeve 144 has the second graduation mark 1441；
Described free position rotating plane control dish 141 is divided into inner disc 1411 and outer disk 1412, and inner disc 1411 has hands
1413, outer disk 1412 outer ring has marking line, and inner disc 1411 center has pointer 1414, inner disc 1411 and outer disk 1412 phase
Coordinating, free position rotating axle 142 is fixedly installed on inner disc 1411 lower end, and outer disk 1412 is fixedly installed on pressing handle 146；
Described microstructure sampling bin device 143 includes depression bar 1431, link assembly 1432 and sampling storehouse 1433, depression bar
1431 are arranged in free position rotating axle 142, and link assembly 1432 is arranged on depression bar 1431 lower end, and sampling storehouse 1433 is fixing to be set
Putting in link assembly 1432 one end, described sampling storehouse 1433 is open-type cuboid, and outside is cutting edge shape.
The operation principle of the present invention and process:
Refer to shown in Fig. 1 and Fig. 2, during work, close locking mechanism 145, sampler 1 is inserted in soil, and arrives
Needed for first graduation mark 131 at numerical value, then carry out microcosmic soil sample chooses location, opens locking mechanism 145, by hands handle
1413 rotate inner disc 1411, make pointer 1414 rotate required numerical value position, and free position rotating axle 142 rotates, and microstructure takes
Sample bin device 143 forwards specify orientation to, and lower pressure presses handle 146, after free position rotating axle sleeve 144 is pressed onto at required numerical value,
Guan Bi locking mechanism 145, then opens peristaltic pump 3 valve, by pressure by liquid nitrogen press-in liquid nitrogen chamber 11 in liquid nitrogen heat insulation tank 2,
Heat-sensitive variable colour volatilised liq in airtight warming chamber 12 changes because of the change of soil temperature, then by observing upper chambers outer wall
Temperature sensing material demonstrates the color change of chamber outer wall, and sampling after 10 minutes is in order to allow the soil fast quick-freezing of pore water
Knot, forms the ice of the non-crystalline without volumetric expansion, and airtight warming chamber is become black state by pellucidity, demonstrate,proves after colour stable
The bright soil body cools down, and is not susceptible to change of shape, and lower moulded rod 1431, by link assembly 1432, sampling storehouse 1433 horizontal direction
Extruding, sample soil enters in sampling storehouse 1433 from opening part, retracts depression bar 1431, and retracting in sampling storehouse 1433, is then turned off peristaltic pump
3, to take out microstructure sampling bin device 143, take out soil sample, sampling terminates.
Claims (5)
1. a soft soil microstructure sample preparation device, it is characterised in that: it is by sampler (1), liquid nitrogen heat insulation tank (2) and peristaltic pump
(3) composition, sampler (1) and peristaltic pump (3) are connected with liquid nitrogen heat insulation tank (2) by flexible pipe (4) respectively, described flexible pipe
(4) there is on metal joint (41)；
Described sampler (1) lower end has liquid nitrogen chamber (11) and airtight warming chamber (12), and upper end has sleeve pipe (13) and freedom
Positioning rotation device (14), free positioning rotation device (14) is arranged on sleeve pipe (13), and airtight warming chamber (12) is arranged on set
Pipe (13) lower end, and wrap up sleeve pipe (13) bottom, liquid nitrogen chamber (11) are arranged on outside airtight warming chamber (12) outer wall；
Described sleeve pipe (13) inner pipe wall is smooth, and sleeve pipe (13) has the first graduation mark (131) on the top in airtight warming chamber；
Described free positioning rotation device (14) includes free position rotating plane control dish (141), free position rotating axle
(142), microstructure sampling bin device (143), free position rotating axle sleeve (144), locking mechanism (145) and pressing handle
(146), free position rotating axle (142) is arranged in free position rotating axle sleeve (144), free position rotating plane control dish
(141) being arranged in pressing handle (146), free position rotating axle sleeve (144) is fixedly installed on pressing handle (146) lower end,
Free position rotating axle sleeve (144) is arranged in sleeve pipe (13), and microstructure sampling bin device (143) is fixedly installed on freely to be determined
In position rotary shaft (142), free position rotating axle (142) is fixedly installed on free position rotating plane control dish (14) lower end,
Locking mechanism (145) is fixedly installed on free position rotating axle sleeve (144) and sleeve pipe (13) junction, described free position rotating
There is on axle sleeve (144) the second graduation mark (1441)；
Described free position rotating plane control dish (141) is divided into inner disc (1411) and outer disk (1412), the upper tool of inner disc (1411)
Having hands (1413), outer disk (1412) outer ring has marking line, and inner disc (1411) center has pointer (1414), inner disc
(1411) matching with outer disk (1412), free position rotating axle (142) is fixedly installed on inner disc (1411) lower end, outer disk
(1412) it is fixedly installed in pressing handle (146).
A kind of soft soil microstructure sample preparation device the most according to claim 1, it is characterised in that: described liquid nitrogen chamber (11) intracavity
All scribbling encapsulant, have metal interface (111) on the outer wall in chamber, metal joint (41) matches with metal interface (111)
Close.
A kind of soft soil microstructure sample preparation device the most according to claim 2, it is characterised in that: described encapsulant is poly-four
Fluorothene.
A kind of soft soil microstructure sample preparation device the most according to claim 1, it is characterised in that: described airtight warming chamber (12)
Filling heat-sensitive variable colour volatilised liq in cavity, chamber outer wall and end face scribble temperature sensing material.
A kind of soft soil microstructure sample preparation device the most according to claim 1, it is characterised in that: described microstructure sampling storehouse
Device (143) includes depression bar (1431), link assembly (1432) and sampling storehouse (1433), and depression bar (1431) is arranged on free location
In rotary shaft (142), link assembly (1432) is arranged on depression bar (1431) lower end, and sampling storehouse (1433) is fixedly installed on connection rod set
Part (1432) one end, described sampling storehouse (1433) is open-type cuboid, and outside is cutting edge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032467.XA CN106323720A (en) | 2016-11-17 | 2016-11-17 | Soft soil microstructure sample preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032467.XA CN106323720A (en) | 2016-11-17 | 2016-11-17 | Soft soil microstructure sample preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106323720A true CN106323720A (en) | 2017-01-11 |
Family
ID=57817096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611032467.XA Pending CN106323720A (en) | 2016-11-17 | 2016-11-17 | Soft soil microstructure sample preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106323720A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037270A (en) * | 2017-12-22 | 2018-05-15 | 吉林大学 | A kind of snap frozen and save set of Soil Microstructure test sample |
| CN109723053A (en) * | 2018-12-20 | 2019-05-07 | 重庆交通大学 | A kind of sampling method of major diameter particulate matter undisturbed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766539A (en) * | 2005-11-17 | 2006-05-03 | 南京大学 | Quantitative and quick ecological soil sampler |
| CN101140202A (en) * | 2007-10-30 | 2008-03-12 | 中国农业大学 | Mechanical type soil sampling apparatus |
| CN102128728A (en) * | 2010-11-24 | 2011-07-20 | 中国林业科学研究院资源昆虫研究所 | Soil constant-volume sampling device |
| CN201939356U (en) * | 2010-12-10 | 2011-08-24 | 山东新华医疗器械股份有限公司 | Angle indicator for medical instruments |
| CN102359887A (en) * | 2011-06-20 | 2012-02-22 | 中国科学院新疆生态与地理研究所 | Sampling device for undisturbed sample of biological soil crust and field operation method thereof |
| CN202255190U (en) * | 2011-09-23 | 2012-05-30 | 北京积水潭医院 | Medical surgical multifunctional measuring scale |
| CN103728153A (en) * | 2013-12-24 | 2014-04-16 | 中山大学 | Directional minitype soft clay sampling device |
| CN206177673U (en) * | 2016-11-17 | 2017-05-17 | 吉林大学 | Weak soil microstructure system appearance ware |
-
2016
- 2016-11-17 CN CN201611032467.XA patent/CN106323720A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1766539A (en) * | 2005-11-17 | 2006-05-03 | 南京大学 | Quantitative and quick ecological soil sampler |
| CN101140202A (en) * | 2007-10-30 | 2008-03-12 | 中国农业大学 | Mechanical type soil sampling apparatus |
| CN102128728A (en) * | 2010-11-24 | 2011-07-20 | 中国林业科学研究院资源昆虫研究所 | Soil constant-volume sampling device |
| CN201939356U (en) * | 2010-12-10 | 2011-08-24 | 山东新华医疗器械股份有限公司 | Angle indicator for medical instruments |
| CN102359887A (en) * | 2011-06-20 | 2012-02-22 | 中国科学院新疆生态与地理研究所 | Sampling device for undisturbed sample of biological soil crust and field operation method thereof |
| CN202255190U (en) * | 2011-09-23 | 2012-05-30 | 北京积水潭医院 | Medical surgical multifunctional measuring scale |
| CN103728153A (en) * | 2013-12-24 | 2014-04-16 | 中山大学 | Directional minitype soft clay sampling device |
| CN206177673U (en) * | 2016-11-17 | 2017-05-17 | 吉林大学 | Weak soil microstructure system appearance ware |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037270A (en) * | 2017-12-22 | 2018-05-15 | 吉林大学 | A kind of snap frozen and save set of Soil Microstructure test sample |
| CN108037270B (en) * | 2017-12-22 | 2024-03-12 | 吉林大学 | Quick freezing and preserving device for soil microstructure test sample |
| CN109723053A (en) * | 2018-12-20 | 2019-05-07 | 重庆交通大学 | A kind of sampling method of major diameter particulate matter undisturbed |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170111 |