CN107462457A - A kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample - Google Patents
A kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample Download PDFInfo
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- CN107462457A CN107462457A CN201710607875.1A CN201710607875A CN107462457A CN 107462457 A CN107462457 A CN 107462457A CN 201710607875 A CN201710607875 A CN 201710607875A CN 107462457 A CN107462457 A CN 107462457A
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- 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
- G01N1/36—Embedding or analogous mounting of samples
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- 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
- G01N1/36—Embedding or analogous mounting of samples
- G01N2001/366—Moulds; Demoulding
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample, realize that wet soft sample is keeping successfully filling sample under the conditions of solid shape is undisturbed, including for preparing the two pieces of split petals, a lock set and two pieces of permeable stones of cylindrical sample；In the apposition position of two pieces of split petals, a pair of electromagnet by infrared switch remote control control are respectively equipped with, one is respectively provided with the centre position of involutory surface and is used to pacify spring-loaded spring eye；Lock set is cyclic structure, and for waling sample, its internal diameter is equal with the external diameter of two pieces of split petals, is placed in split petal；Two pieces of permeable stones are respectively placed in the top and bottom of two pieces of split petals.Present invention can ensure that sample keeps fixed shape and undisturbed loading triaxial apparatus, the sample of high quality is provided for experiment, and it is easy to operate, take short, efficiency high.The present invention can also realize prepared by sample mass, save the plenty of time.
Description
Technical field
The present invention relates to a kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample.
Background technology
Rock-soil triaxial tests are that rock-soil mechanics is tested with routine in engineering field and using extensive, prepare saturation and remold examination
Sample or installation undisturbed sample, and the undisturbed loading confined pressure of solid shape is kept, it is the key tested successfully.It is but right
In some remoulded samples, it is difficult using existing experimental provision and experimental method or can not reaches the required saturation of experiment at all
Degree, even if the saturation success of remodeling sample, because sample is wet soft, easily deforms before confined pressure is loaded, still can not carry out experiment.It is right
Some undisturbed soil samples, due to sample it is wet it is soft, be easily deformed, operate inconvenience, it is impossible to complete dress sample.Therefore, the present invention proposes a kind of
The petal of Electromagnetic Control two tool and experimental method for weak soil dress sample..
The content of the invention
It is an object of the invention to provide a kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample, realize
Wet soft sample is keeping successfully filling sample under the conditions of solid shape is undisturbed.
In order to achieve the above object, concrete technical scheme of the invention is as follows：
A kind of petal of Electromagnetic Control two tool for weak soil dress sample, including：Two pieces for preparing cylindrical sample are split
Petal, a lock set and two pieces of permeable stones；
In the apposition position of two pieces of split petals, a pair of electromagnet by infrared switch remote control control are respectively equipped with,
One is respectively provided with the centre position of involutory surface to be used to pacify spring-loaded spring eye；
The lock set is cyclic structure, and for waling sample, its internal diameter is equal with the external diameter of two pieces of split petals, puts
In in the split petal；
Two pieces of permeable stones are respectively placed in the top and bottom of two pieces of split petals.
Further, two pieces of split petals made of metallic copper, its thickness are 4mm-4.3mm, and internal diameter compares standard
Sample big 0.1mm-0.15mm is highly bigger 1.0cm-1.1cm than standard specimen.
Further, one end of the lock tube made of metallic copper is free to rotate, and its other end is provided with installation screw
Screw, the thickness of the lock set is 5mm.
Further, the diameter of the permeable stone is equal with the internal diameter of two pieces of split petals, and its thickness is 5mm.
Present invention also offers a kind of method tested using above-mentioned two petals tool, comprise the following steps：
(1) two pieces of split petals are pinned with the lock set, opens the solenoid circuit, package rubber membrane,
Permeable stone is placed in the bottom for the two pieces of split petals pinned, by the soil body by certain dry density and water content in two petals point
Layer is hit tight, and permeable stone is then placed at the top of it, and sample is closed in device, only allows water and air seepage flow to come out；
(2) device containing sample in step (1) is placed in anhydrous pumping cylinder, carries out vacuumize process, then
Distilled water is slowly injected into, and keeps vacustat, treats that described device is dipped in water completely and stops pumping, the sample is in water
It is middle to stand more than 10 hours, before being tested, careful withdrawing device；
(3) described device is placed on three axle bases, installed, open lock set, fall balancing gate pit, inject confined pressure liquid,
Applying confined pressure 20kPa, the solenoid circuit described in remote closing, the split petal automatically springs open under the spring effect,
Realize that wet soft sample is keeping successfully filling sample under the conditions of solid shape is undisturbed.
The present invention provided by the invention, which discloses, invents a kind of petal of Electromagnetic Control two tool for weak soil dress sample and experiment side
Method.The present invention can be used for：The soil sample of saturation is unable to existing saturation process；Wet soft saturation remodeling sample dress sample；Wet soft original
Shape sample fills sample.Present invention can ensure that sample keeps fixed shape and undisturbed loading triaxial apparatus, provided for experiment high-quality
The sample of amount, and it is easy to operate, take short, efficiency high.The present invention can also realize prepared by sample mass, when saving a large amount of
Between.
Brief description of the drawings
Fig. 1 provides a kind of structural representation for the petal of Electromagnetic Control two tool that sample is filled for weak soil for the present invention；
1. split petal, 2. electromagnet, 3. spring eyes, 4. lock tubes.
Embodiment
Embodiments of the present invention are illustrated below in conjunction with the accompanying drawings.
A kind of petal of Electromagnetic Control two tool for weak soil dress sample, including：Two pieces for preparing cylindrical sample are split
Petal, a lock set and two pieces of permeable stones；
In the apposition position of two pieces of split petals, a pair of electromagnet 2 by infrared switch remote control control are respectively equipped with,
One is respectively provided with the centre position of involutory surface to be used to pacify spring-loaded spring eye 3；Made of metallic copper two pieces it is described split
Petal, its thickness are 4mm-4.3mm, and internal diameter is bigger 0.1mm-0.15mm than standard specimen, highly bigger 1.0cm- than standard specimen
1.1cm。
The lock set is cyclic structure, during sample preparation, for waling sample, and the external diameter of its internal diameter and two pieces of split petals
It is equal, it is placed in the split petal 1；One end of the lock tube 4 is free to rotate made of metallic copper, and its other end is provided with
The screw of screw is installed, the thickness of the lock set is 5mm.
Two pieces of permeable stones are respectively placed in the top and bottom of two pieces of split petals 1.The diameter of the permeable stone with
The internal diameter of two pieces of split petals is equal, and its thickness is 5mm, can ensure that water and air is free from permeable stone during saturation soil sample
Seepage flow.
When being tested, comprise the following steps：
(1) two pieces of split petals are pinned with the lock set, in sample preparation, the soil body has squeezing action to petal, if
If not pinning, petal can only be extruded and disengaged by electromagnetic force, so needing first to be pinned split petal 1 with lock set.Open
The circuit of electromagnet 2, packages rubber membrane, places permeable stone in the bottom of two pieces of split petals 1 of pinning, the soil body is pressed
Certain dry density and water content are layered in two petals and hit tight, to the different soil bodys, dry density and water content required by sample preparation
Difference, permeable stone is then placed at the top of it, sample is closed in device, only allows water and air seepage flow to come out.During sample preparation,
One piece of glass plate is first put below in mould, then sample soil is poured into mould from upper end, pounded in layer, is pounding rear soil just
The whole space of mould is full of well.
(2) device containing sample in step (1) is placed in anhydrous pumping cylinder, carries out vacuumize process, then
Distilled water is slowly injected into, and keeps vacustat, treats that described device is dipped in water completely and stops pumping, the sample is in water
It is middle to stand more than 10 hours, before being tested, careful withdrawing device；
(3) described device is placed on three axle bases, installed, open lock set, fall balancing gate pit, inject confined pressure liquid,
Applying confined pressure 20kPa, the circuit of electromagnet 2 described in remote closing, the split petal automatically springs open under the spring effect,
Realize that wet soft sample is keeping successfully filling sample under the conditions of solid shape is undisturbed.
Experimental example：
We are using Extra-fine sand as test medium, and sample is according to dry density 1.6g/cm3, it is prepared by moisture content 8%.
Put the sample prepared into anhydrous pumping cylinder to be vacuumized, note distilled water, be maintained in water and submerge 12 hours,
Withdrawing device, installed, open the operations such as lock set, dropping force room, note confined pressure liquid, application 20kPa confined pressures.Finally closed with remote control
Solenoid circuit is closed, realizes wet soft sample dress sample.
Afterwards, We conducted not Drainage Shear triaxial test (CU), confined pressure 2MPa is consolidated, after the completion of experiment, number is handled
According to discovery stress-strain diagram is good, removes sample, sample is upright, and sample both ends and upper piston and base contacts are good, do not have
Tilt, skew, disturb, therefore, it can be stated that bright this device and experimental method are very effective.
More than, although the description of several embodiments of the invention, but these embodiments are intended only as example proposition
, it is not intended to limit the scope of the present invention.For these new embodiments, can be implemented in a manner of other are various,
In the range of idea of the invention is not departed from, various omissions, displacement and change can be carried out.These embodiments and its change
Shape, the invention being also contained in described in claims while being contained in scope and spirit of the present invention and its impartial model
In enclosing.
Claims (5)
- A kind of 1. petal of Electromagnetic Control two tool for weak soil dress sample, it is characterised in that including：For preparing cylindrical sample Two pieces of split petals, a lock set and two pieces of permeable stones；In the apposition position of two pieces of split petals, a pair of electromagnet by infrared switch remote control control are respectively equipped with, right The centre position in conjunction face is respectively provided with one and is used to pacify spring-loaded spring eye；The lock set is cyclic structure, and for waling sample, its internal diameter is equal with the external diameter of two pieces of split petals, is placed in institute State in split petal；Two pieces of permeable stones are respectively placed in the both ends of two pieces of split petals.
- 2. a kind of petal of Electromagnetic Control two tool for weak soil dress sample according to claim 1, it is characterised in that by metal Two pieces of split petals made of copper, its thickness are 4mm-4.3mm, and internal diameter is bigger 0.1mm-0.15mm than standard specimen, height It is bigger 1.0cm-1.1cm than standard specimen.
- 3. a kind of petal of Electromagnetic Control two tool for weak soil dress sample according to claim 1, it is characterised in that by metal One end of the lock tube is free to rotate made of copper, and its other end is provided with the screw of installation screw, and the thickness of the lock set is 5-5.5mm。
- 4. a kind of petal of Electromagnetic Control two tool for weak soil dress sample according to claim 1, it is characterised in that described The diameter of water stone is equal with the internal diameter of two pieces of split petals, and its thickness is 5-5.3mm.
- 5. the method tested using a kind of petal of Electromagnetic Control two tool for weak soil dress sample described in claim 1, its It is characterised by, comprises the following steps：(1) two pieces of split petals are pinned with the lock set, opens the solenoid circuit, package rubber die, pinning Two pieces of split petals bottom place permeable stone, the soil body is layered by certain dry density and water content in two petals and pounded It is real, permeable stone is then placed at the top of it, sample is closed in device, only allows water and air seepage flow to come out；(2) device containing sample in step (1) is placed in anhydrous pumping cylinder, carries out vacuumize process, then slowly Distilled water is injected, and keeps vacustat, treats that described device is dipped in water completely and stops pumping, the sample is quiet in water Put more than 10 hours, before being tested, careful withdrawing device；(3) described device is placed on three axle bases, installed, open lock set, fall balancing gate pit, inject confined pressure liquid, applied Confined pressure 20kPa, the solenoid circuit described in remote closing, the split petal automatically spring open under the spring effect, realize Wet soft sample is keeping successfully filling sample under the conditions of solid shape is undisturbed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607875.1A CN107462457A (en) | 2017-07-24 | 2017-07-24 | A kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710607875.1A CN107462457A (en) | 2017-07-24 | 2017-07-24 | A kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample |
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|---|---|
| CN107462457A true CN107462457A (en) | 2017-12-12 |
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| CN201710607875.1A Pending CN107462457A (en) | 2017-07-24 | 2017-07-24 | A kind of petal of Electromagnetic Control two tool and experimental method for weak soil dress sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323892A (en) * | 2021-11-26 | 2022-04-12 | 扬州大学 | Three lamella moulds tear appearance device open |
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|---|---|---|---|---|
| CN202126369U (en) * | 2011-06-28 | 2012-01-25 | 宁波大学 | Sample preparation instrument of sand triaxial test |
| CN202393634U (en) * | 2011-12-02 | 2012-08-22 | 孙猛 | Triaxial experimental test sample preparation die |
| CN103969094A (en) * | 2014-04-11 | 2014-08-06 | 北京交通大学 | Multifunctional sample preparation device |
| CN104316380A (en) * | 2014-11-11 | 2015-01-28 | 武汉市市政建设集团有限公司 | Sample preparation device for coarse-grained soil triaxial test and application method thereof |
| CN105258995A (en) * | 2015-10-23 | 2016-01-20 | 中国科学院力学研究所 | Soft soil sample loading device in triaxial apparatus experiments |
| CN105865874A (en) * | 2016-05-11 | 2016-08-17 | 同济大学 | Sample preparing device suitable for sandy soil laboratory tests |
-
2017
- 2017-07-24 CN CN201710607875.1A patent/CN107462457A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202126369U (en) * | 2011-06-28 | 2012-01-25 | 宁波大学 | Sample preparation instrument of sand triaxial test |
| CN202393634U (en) * | 2011-12-02 | 2012-08-22 | 孙猛 | Triaxial experimental test sample preparation die |
| CN103969094A (en) * | 2014-04-11 | 2014-08-06 | 北京交通大学 | Multifunctional sample preparation device |
| CN104316380A (en) * | 2014-11-11 | 2015-01-28 | 武汉市市政建设集团有限公司 | Sample preparation device for coarse-grained soil triaxial test and application method thereof |
| CN105258995A (en) * | 2015-10-23 | 2016-01-20 | 中国科学院力学研究所 | Soft soil sample loading device in triaxial apparatus experiments |
| CN105865874A (en) * | 2016-05-11 | 2016-08-17 | 同济大学 | Sample preparing device suitable for sandy soil laboratory tests |
Non-Patent Citations (1)
| Title |
|---|
| 陈榕 等: "《土力学实验教程》", 30 September 2016 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323892A (en) * | 2021-11-26 | 2022-04-12 | 扬州大学 | Three lamella moulds tear appearance device open |
| CN114323892B (en) * | 2021-11-26 | 2023-10-27 | 扬州大学 | Sample removing device for three-flap die |
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Application publication date: 20171212 |