CN108387433A - A kind of soil sample maintenance mould for frozen soil direct shear test - Google Patents
A kind of soil sample maintenance mould for frozen soil direct shear test Download PDFInfo
- Publication number
- CN108387433A CN108387433A CN201810233650.9A CN201810233650A CN108387433A CN 108387433 A CN108387433 A CN 108387433A CN 201810233650 A CN201810233650 A CN 201810233650A CN 108387433 A CN108387433 A CN 108387433A
- Authority
- CN
- China
- Prior art keywords
- side form
- shear test
- outer box
- frozen soil
- direct shear
- 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
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
- 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
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- 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
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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention provides a kind of soil sample maintenance moulds for frozen soil direct shear test, belong to frozen soil mechanics testing equipment field, mainly by outer box and fastening bolt, side form, bed die, the part such as backing plate composition, it is characterised in that：The outer box are fixed side form, bed die, backing plate by fastening bolt.The cube structure of cylindrical hollow is made of the side form of two pairings, there are annular grooves to fixed cutting ring on side form top.Mold assembling is first completed when in use, then will be conserved in soil sample push-in mold in cutting ring with bulldozing device.The design can conserve the polylith soil sample under same curing condition together, convenient succinct, substantially increase sample preparation efficiency, while avoiding the influence for the precision for making back-to-back test in maintenance processes because of curing condition error.
Description
Technical field
The present invention relates to a kind of maintenance moulds, and in particular to one kind being used for frozen soil direct shear test maintenance mould, belongs to
Frozen soil mechanics experimental technique field.
Background technology
Underground engineering construction to it is deeper be more difficult to condition develop form under, freeze law technology because of its safety, controllability
It is widely used in mine, city underground, tunnel, deep-foundation pit engineering and bridge construction with economy.And it must before construction freezing method
The mechanical property experiment of frozen soil must be carried out, wherein frozen soil direct shear test is an important content therein.
In frozen soil direct shear test, it is put in after soil body sample preparation in cryogenic box and freezes to conserve.Supporting under the conditions of non-lateral spacing
The lateral frost heave of soil sample often occurs for shield, therefore general use directly is conserved in shear box.Traditional method needs a large amount of
Shear box carries out soil sample maintenance or repeats maintenance experiment, and the time is long, progress is slow and curing condition is different can be to the essence of experiment
Degree has an impact.
Invention content
In view of the shortcomings of the background art, the purpose of the present invention is to provide a kind of soil samples of frozen soil direct shear test
Maintenance mould.
The invention is realized by the following technical scheme：
One kind being used for frozen soil direct shear test maintenance mould, mainly by outer box and fastening bolt, side form, bed die and backing plate
Composition.The bed die is cylindrical structure, after the side forms of two pairings is surrounded, the snap-gauge alignment row that is close on the left of outer box
Row, are fixed mold by backing plate with fastening bolt.Soil sample is put in maintenance in mold therefore lateral frost heave will not occur.Maintenance knot
Loosen fastening bolt after beam, dismantle backing plate successively, left side snap-gauge, side form, bed die obtains testing required soil sample.
The present invention has the following advantages compared with prior art：
The soil sample maintenance mould of frozen soil direct shear test provided by the invention, it is simple in structure, it is easy to operate.It can be to same
Polylith soil sample under curing condition is conserved together, is avoided repetition experiment, is substantially increased sample preparation efficiency, save experiment
Time.Meanwhile the influence generated to the precision of experiment by curing condition difference in maintenance processes is avoided, it ensure that experiment knot
The precision of fruit.
Description of the drawings
Fig. 1 is outer box and fastening bolt figure
Fig. 2 is side form, bed die and backing plate figure
Fig. 3 is vertical view
In figure：1, side form, 2, bed die, 3 backing plates.
Specific implementation mode
In order to which so that the present invention is realized technological means, reached purpose are easy to understand in effect, below by specific
Embodiment and diagram, the present invention is further explained.
Referring to Fig. 1 to Fig. 3, the present invention provide it is a kind of be used for frozen soil direct shear test maintenance mould, including outer box and tight
Fixing bolt, side form, bed die, backing plate etc..When needing sample preparation, assembly mold first：The snap-gauge on the left of outer box is dismantled, by two pairings
Side form surround bed die, surface be aligned and is placed in outer box after applying vaseline, and snap-gauge on the left of installation, right side is put into backing plate, with tight
Fixing bolt is fixed.Soil sample push-in is carried out again：The reserved annular groove in side form top is put in after cutting ring sampling, it will with bulldozing device
In soil sample push-in mold in cutting ring.Then soil sample can be placed in together with mold under varying environment and is conserved.
The main feature and feature of the present invention has been shown and described above, industry technical staff should be recognized that.The present invention
Principle, be not intended to limit the invention, the modification and improvement etc. done all within the spirits and principles of the present invention should all wrap
Within protection scope of the present invention.
Claims (6)
1. one kind being used for frozen soil direct shear test maintenance mould, which is characterized in that including outer box and fastening bolt, side form, bottom
Mould and backing plate；The outer box are the body structure of top end opening, and right side central through hole is equipped with fastening bolt, and proximal end is leaned in left side
There are one dismountable snap-gauges in portion；The side form and backing plate are fixed on by fastening bolt in outer box.
2. frozen soil direct shear test maintenance mould according to claim 1, it is characterised in that：The bed die is cylinder knot
Structure, diameter 61.8mm, high 10mm.
3. frozen soil direct shear test maintenance mould according to claim 1, it is characterised in that：The high 35mm of side form,
Arc diameter 61.8mm, top are arc grooves of the 1mm to fixed cutting ring there are width.
4. frozen soil direct shear test maintenance mould according to claim 1, it is characterised in that：Outer box internal height, width
It is identical as side form to spend size.
5. frozen soil direct shear test maintenance mould according to claim 1, it is characterised in that：Backing plate width is slightly less than outer
Box inner width, there are annular grooves with fastening bolt contact position.
6. frozen soil direct shear test maintenance mould according to claim 1, it is characterised in that：By each section in outer box
It assembles, from left to right respectively detachable snap-gauge, side form and bed die, backing plate, fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233650.9A CN108387433A (en) | 2018-03-21 | 2018-03-21 | A kind of soil sample maintenance mould for frozen soil direct shear test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810233650.9A CN108387433A (en) | 2018-03-21 | 2018-03-21 | A kind of soil sample maintenance mould for frozen soil direct shear test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108387433A true CN108387433A (en) | 2018-08-10 |
Family
ID=63068260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810233650.9A Pending CN108387433A (en) | 2018-03-21 | 2018-03-21 | A kind of soil sample maintenance mould for frozen soil direct shear test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763543A (en) * | 2019-10-31 | 2020-02-07 | 安徽理工大学 | A mould for reducing real triaxial sample of frozen soil is inhomogeneous to freeze and expands |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813956A (en) * | 2015-11-27 | 2017-06-09 | 攀枝花学院 | Sample preparation device |
| CN206410918U (en) * | 2017-01-05 | 2017-08-15 | 安徽理工大学 | For frozen soil experiment sampling die |
| CN107782600A (en) * | 2017-10-23 | 2018-03-09 | 中国矿业大学 | A kind of mould and method for making prefabricated filling fracture and unfilling fracture Brazilian disk specimen |
| CN107803918A (en) * | 2017-11-06 | 2018-03-16 | 安徽理工大学 | One kind experiment pours mould with adjustable beams of concrete |
-
2018
- 2018-03-21 CN CN201810233650.9A patent/CN108387433A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106813956A (en) * | 2015-11-27 | 2017-06-09 | 攀枝花学院 | Sample preparation device |
| CN206410918U (en) * | 2017-01-05 | 2017-08-15 | 安徽理工大学 | For frozen soil experiment sampling die |
| CN107782600A (en) * | 2017-10-23 | 2018-03-09 | 中国矿业大学 | A kind of mould and method for making prefabricated filling fracture and unfilling fracture Brazilian disk specimen |
| CN107803918A (en) * | 2017-11-06 | 2018-03-16 | 安徽理工大学 | One kind experiment pours mould with adjustable beams of concrete |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763543A (en) * | 2019-10-31 | 2020-02-07 | 安徽理工大学 | A mould for reducing real triaxial sample of frozen soil is inhomogeneous to freeze and expands |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180810 |