CN105571926B - A method of for making remolding soil specimens - Google Patents
A method of for making remolding soil specimens Download PDFInfo
- Publication number
- CN105571926B CN105571926B CN201510907688.6A CN201510907688A CN105571926B CN 105571926 B CN105571926 B CN 105571926B CN 201510907688 A CN201510907688 A CN 201510907688A CN 105571926 B CN105571926 B CN 105571926B
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- soil
- pallet
- sample
- floating rule
- making
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Classifications
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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
-
- 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
Abstract
A kind of method of the making remolding soil specimens in soil test technique field.The present invention is made of floating rule pallet and sample preparation device.Floating rule pallet is the rectangle pallet that a top has adjustable floating rule.Sample preparation device is made of convex compression bar, cushion block and attached graduated transparent sleeve.The present invention is by way of disposably feeding, the characteristics of uniform and stable being loaded using the existing servo-hydraulic equipment in laboratory, solve the problems, such as that sample preparation pressure is uneven surely, soil sample is easily layered and difference of densities is different, and accomplish to accurately control volume of sample using the characteristics of visible scale of sample preparation device, and then dry density is accurately controlled under the premise of being more accurately controlled moisture content, preparation suitable for cylindrical remoulded sample, the features such as small with systematic error, simple in structure, comprehensive utilization laboratory equipment, energy multiple Reusability.
Description
Technical field
Patent of the present invention is a kind of method for making remolding soil specimens.
Background technology
Native physical mechanics test is uniaxial compressive strength, triaxial shear strength, the triple axis mode X-ray diffraction etc. for measuring the soil body
The basic test of physical and mechanical property.Its source for testing soil sample has：Natural undisturbed soil sample and indoor remoulded sample.Natural original state
Soil sample more can really react soil body original state structure, but by disturbance, sampling technique, soil body self property sampled etc. because
The result discreteness of the influence of element, undisturbed soil experiment is big, and is difficult to carry out factor controlling, the controllability bigger of manipulated soil experiment
The advantages of supplement undisturbed soil well and test, and be widely used in comparative experimental research, manipulated soil experiment also becomes a kind of wide
The general test method for measuring the physico-mechanical properties of soil.
The remolding soil specimens method for making sample described in current specifications is broadly divided into two classes：(1) compacting process uses difference
Compactive effort layering hammering different water cut soil sample to required size.Its advantage is that the sample preparation period is short, simple to operation, disadvantage
Be levels soil sample compactness it is variant, it is easy layering, be difficult to accurately control dry density etc..(2) concretion method uses top to apply
Add the mode of static load that the thin mud discharging consolidation more than liquid limit is accelerated to obtain saturated sample.Its advantage is that soil sample is uniform, the disadvantage is that
The sample under saturation state can only be made.
Pass through prior art retrieval and find that some researchers made this improvement, but still there are problems：Examination
Equipment complexity is tested, solves the problems, such as that single, sample preparation pressure is uneven surely, be difficult to take into account control of moisture content and dry density etc..
Invention content
Patent of the present invention is directed to the problems of the prior art, a kind of manipulated soil method for making sample is provided, by simple
Testing equipment can solve the problems, such as that sample preparation pressure is uneven surely, soil sample is easily layered and difference of densities is different, and can take into account
Dry density is accurately controlled under the premise of moisture content.
Realize that the technical solution of above-mentioned purpose is as follows：
The present invention includes：Floating rule pallet and sample preparation device.
The floating rule pallet be a top have adjustable floating rule rectangle pallet, for prepare fixed moisture content or
The soil sample of salt content.
The sample preparation device is made of convex compression bar, cushion block and attached graduated transparent sleeve.
Steps are as follows for the sample preparation：Dry ground is made by soil test specification and is weighed；By floating rule pallet be placed on precision compared with
On high electronic scale and reset；It will weigh, record weight and reset on dry ground placement tray；Gradually spray water or brine, and
Wet soil is scraped off with floating rule, after often sprinkling is primary until reaching ratio requirement；The wet soil for being up to ratio requirement is put by predetermined weight
Enter in the mold being made of cushion block and attached graduated transparent sleeve；Convex compression bar is covered, is positioned on testing stand, single shaft is utilized
The existing similar servo-hydraulic equipment load of creep testing machine or laboratory, is depressed into specified altitude；Profit after pressurize for a period of time
With demoulding hydraulic test demoulding, sample is obtained.
The beneficial effects of the present invention are：Using floating rule pallet, electronic scale and spray appliance, accomplish that even laminating adds
Solubilization liquid, and evaded because splashing, the addition solution quality error that measuring cup wall built-up and volatile zone come, reduce systematic error；Profit
With the equal stability of the existing servo-hydraulic equipment load in laboratory, effectively solve the problems, such as that sample preparation pressure is uneven steady；Utilize experiment
The loading performance of the existing servo-hydraulic equipment in room and graduated transparent sleeve, have accomplished the height of effective Control Assay,
Dry density is accurately controlled under the premise of taking into account moisture content；Using the method for disposable addition wet soil, solve because real lead is hit in layering
The non-uniform problem of the soil body up and down caused；Using the clearance fit of mold, gas has reasonably been discharged.Patent of the present invention is suitable for
The preparation of cylindrical remoulded sample, comprehensive utilization laboratory equipment small, simple in structure with systematic error, can repeatedly make repeatedly
The features such as using.
Description of the drawings
Fig. 1 is the floating rule pallet vertical view of patent of the present invention.
Fig. 2 is the floating rule pallet A-A sectional views of patent of the present invention.
Fig. 3 is patent sample preparation device main sectional view of the present invention.
Figure label explanation：1- floating rules, 2- pallets, 3- adjusting bolts, 4- convex compression bars, 5- transparent sleeves, 6- scales
Line, 7- cushion blocks.
Specific implementation mode
Patent of the present invention is described in further detail below with reference to the drawings and specific embodiments：
Embodiment：
The first step：It is needed according to experiment, dry ground quality and added water is calculated according to earthwork test rule (SL237-1999)
Amount or salting liquid amount.
Second step：Dry ground is made by earthwork test rule and prepares solution；
Third walks：Floating rule pallet is placed on the higher electronic scale of precision and is reset；
The 4th step：It will weigh, record weight and reset on dry ground placement tray；
The 5th step：Gradually spray water or brine, and often wet soil is scraped off with floating rule after sprinkling once, until reaching proportioning
It is required that；
The 6th step：The wet soil for being up to ratio requirement is once put by predetermined weight by cushion block and attached graduated transparent
In the mold of sleeve composition and smooth；
The 7th step：Convex compression bar is covered, is positioned on testing stand, it is existing using uniaxial static creep test machine or laboratory
Servo-hydraulic equipment load, be depressed into specified altitude；
The 8th step：After pressurize for a period of time, sample preparation device is removed, is demoulded using demoulding hydraulic test, obtains sample.
The embodiment of the present application is giving down detailed embodiment and specific reality based on the technical solution of the present invention
Process is applied, is only intended to illustrate that technical characteristic disclosed in the present application, those skilled in the art are carried out by simply replacing
Change, still fall within the range that the application is protected.
Claims (8)
1. a kind of method for making remolding soil specimens, the method includes：
A) equipment being made of floating rule pallet and sample preparation device, the floating rule pallet are the length that a top has adjustable floating rule
Rectangular pallet, the soil sample for preparing fixed moisture content or salt content, the sample preparation device are that by convex compression bar, cushion block and have
The transparent sleeve of scale forms；
B) floating rule pallet and existing spray appliance is utilized gradually to prepare wet soil, the method for preparing wet soil, by following steps group
At：
The first step：It is needed according to experiment, dry ground quality and institute's amount of water or salting liquid amount is calculated according to earthwork test rule；
Second step：Dry ground is made by earthwork test rule and prepares solution；
Third walks：Floating rule pallet is placed on the higher electronic scale of precision and is reset；
4th step：It will weigh, record weight and reset on dry ground placement tray；
5th step：Gradually spray water or brine, and often wet soil is scraped off with floating rule after sprinkling once, until reaching ratio requirement；
C) existing servo hydraulic machine and attached graduated sleeve Control Assay density are utilized, is comprised the steps of：
The first step：The wet soil for being up to ratio requirement is once put by predetermined weight by cushion block and attached graduated transparent sleeve group
At mold in and smooth；
Second step：Convex compression bar is covered, is positioned on testing stand, the existing servo of uniaxial static creep test machine or laboratory is utilized
Hydraulic test loads, and is depressed into specified altitude；
Third walks：After pressurize for a period of time, sample preparation device is removed, is demoulded using demoulding hydraulic test, obtains sample.
2. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Floating rule pallet is that a uncovered is rectangular
Body, the floating rule and lattice pallet of top adjustable-depth.
3. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Sample preparation device is transparent sleeve
Inner wall is marked with graduation mark, can be used for observing the height of sample in real time, to calculate the volume and density of sample.
4. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Utilize floating rule pallet, electronic scale
And spray appliance, accomplish that even laminating adds solution, and evaded because splashing, the solution quality that measuring cup wall built-up and volatile zone come
Error reduces systematic error.
5. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Utilize disposable addition wet soil
Method solves the problems, such as that the soil body is non-uniform up and down caused by reality is hit in layering.
6. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Utilize the existing servo in laboratory
The equal stability of hydraulic test load effectively solves the problems, such as that sample preparation pressure is uneven steady.
7. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Using the clearance fit of mold,
Gas reasonably has been discharged.
8. the method according to claim 1 for making remolding soil specimens, it is characterised in that：Utilize the existing servo in laboratory
The loading performance of hydraulic test and graduated transparent sleeve, have accomplished the height of effective Control Assay, are taking into account moisture content
Under the premise of accurately control dry density.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907688.6A CN105571926B (en) | 2015-12-07 | 2015-12-07 | A method of for making remolding soil specimens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510907688.6A CN105571926B (en) | 2015-12-07 | 2015-12-07 | A method of for making remolding soil specimens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105571926A CN105571926A (en) | 2016-05-11 |
| CN105571926B true CN105571926B (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510907688.6A Active CN105571926B (en) | 2015-12-07 | 2015-12-07 | A method of for making remolding soil specimens |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568628B (en) * | 2016-10-24 | 2019-12-17 | 兰州大学 | Soil sample preparation experimental equipment |
| CN108106904B (en) * | 2018-01-15 | 2020-04-14 | 同济大学 | Device for preparing soil sample with specific water content and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095618A (en) * | 2010-11-30 | 2011-06-15 | 上海交通大学 | Device for preparing light-weight remoulded soil sample |
| CN103033406A (en) * | 2012-12-26 | 2013-04-10 | 上海交通大学 | Sample preparation device for remoulded soil with different stress ratios |
| CN203758771U (en) * | 2014-02-22 | 2014-08-06 | 王勇 | Novel remolded soil sample preparation device |
| CN104062161A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Remolded soil triaxial compression test sample preparation device |
-
2015
- 2015-12-07 CN CN201510907688.6A patent/CN105571926B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095618A (en) * | 2010-11-30 | 2011-06-15 | 上海交通大学 | Device for preparing light-weight remoulded soil sample |
| CN103033406A (en) * | 2012-12-26 | 2013-04-10 | 上海交通大学 | Sample preparation device for remoulded soil with different stress ratios |
| CN203758771U (en) * | 2014-02-22 | 2014-08-06 | 王勇 | Novel remolded soil sample preparation device |
| CN104062161A (en) * | 2014-07-03 | 2014-09-24 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Remolded soil triaxial compression test sample preparation device |
Non-Patent Citations (1)
| Title |
|---|
| 百度文库;百度文库;《土样和试样制备，https://wenku.baidu.com/view/67458c42336c1eb91a375d33html》;20100909;正文第20页第3.1.4节 * |
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| Publication number | Publication date |
|---|---|
| CN105571926A (en) | 2016-05-11 |
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