CN203949817U - A kind of mould of making compression forming analog material direct shear test test specimen - Google Patents
A kind of mould of making compression forming analog material direct shear test test specimen Download PDFInfo
- Publication number
- CN203949817U CN203949817U CN201420289350.XU CN201420289350U CN203949817U CN 203949817 U CN203949817 U CN 203949817U CN 201420289350 U CN201420289350 U CN 201420289350U CN 203949817 U CN203949817 U CN 203949817U
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- lateral displacement
- sleeve
- compression forming
- analog material
- test specimen
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Abstract
The utility model discloses a kind of mould of making compression forming analog material direct shear test test specimen, comprise base, lateral Displacement rigid sleeve, moulding sleeve and metal pressure head, within described moulding sleeve is embedded in lateral Displacement rigid sleeve and be placed on base, described metal pressure head is positioned in moulding sleeve, be used for test specimen compression forming, described base is provided with draw-in groove, described lateral Displacement rigid sleeve and draw-in groove are suitable, can fix lateral Displacement steel bushing, described metal pressure head is right cylinder.The present invention is simple in structure, easy and simple to handle, is applicable to the rapid shaping of compression forming analog material staight scissors sample, has solved analog material sample demoulding difficulty and easily cause the problem of damage.
Description
Technical field
The utility model relates to geomechanical model testing technology field, relates to more specifically the compression mold of a kind of analog material direct shear test test specimen used, and it is applicable to the compression forming of analog material staight scissors test specimen.
Background technology
Geomechanical model test is the important means of ROCK MECHANICS RESEARCH, be copy real structure and according to a certain percentage relation copy the test representative forming.Model test is made the subjects similar to prototype with suitable guide and analog material, reproduces the actual working state of prototype, finally according to criterion of similarity repairing experiment result, calculates the virtual condition of prototype.First the science of geomechanical model test depends on that model and prototype have identical physical change process, secondly also will meet the simulated condition of physical phenomenon characteristic parameter.This has just proposed quantitative requirement to the physico-mechanical properties of analog material.
The principle of direct shear test is according to Coulomb's law, the internal friction of friction type material is directly proportional to the normal pressure on shear surface, commaterial is prepared into several samples, respectively under different normal pressures, directly apply horizontal shear along fixing shear surface, its shear stress while cutting up, be shearing strength, then according to the Shear Strength Index angle of friction φ and the cohesive strength c that shear law and determine material.
Direct shear test is generally used for measures native shear index, for estimation foundation bearing capacity, calculating retaining wall pressure etc. provide underlying parameter.The conventional sample preparation instrument of making direct shear sample is geotechnological cutting ring.Geotechnique's cutting ring height is 20mm, and internal diameter is 61.8mm or 79.8mm.But geotechnological cutting ring is only applicable to the soil sample that intensity is lower, be easy to cutting, makes helpless for the test specimen of the analog material that needs extrusion forming.Meanwhile, because the intensity of analog material is lower, the common die demoulding is more difficult, easily causes specimen fails.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, solve the technological deficiency existing at present, the utility model provides a kind of sampling die of direct shear test sample used of applicable extrusion forming analog material, this mould structure is simple, easy and simple to handle, the demoulding is quick, is difficult for causing specimen fails, has solved extrusion forming and the release problems of direct shear sample.
The technical scheme that the utility model adopts is: a kind of mould of making compression forming analog material direct shear test test specimen, comprise base, lateral Displacement rigid sleeve, moulding sleeve and metal pressure head, within described moulding sleeve is embedded in lateral Displacement rigid sleeve and be placed on base, described metal pressure head is positioned in moulding sleeve, for to test specimen compression forming.
As preferably, described base is provided with spacing draw-in groove, and described lateral Displacement rigid sleeve and spacing draw-in groove are suitable, can fix lateral Displacement steel bushing.
As preferably, described metal pressure head is right cylinder, even transmission of pressure when sample compression forming.
The utility model apparatus structure is simple, easy to operate, and sample preparation speed is fast, and sample standardization level and serviceability rate are high, has solved the preparation problem of the required sample of extrusion forming analog material direct shear test.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Brief description of the drawings
Fig. 1 is the overall sectional structure schematic diagram of a kind of mould of making compression forming analog material direct shear test test specimen of the utility model;
Fig. 2 is the side-looking structural representation of base;
Fig. 3 is the side-looking structural representation of lateral Displacement rigid sleeve;
Fig. 4 is the side-looking structural representation of moulding sleeve;
Fig. 5 is the side-looking structural representation of metal pressure head;
Wherein, 1. base, 2. lateral Displacement rigid sleeve, 3. moulding sleeve, 4. metal pressure head.
Embodiment
In order to deepen, to understanding of the present utility model, below in conjunction with drawings and Examples, the utility model to be described in further detail.Following examples are only for the technical solution of the utility model is more clearly described, and can not limit protection domain of the present utility model with this.
As Figure 1-5, a kind of mould of making compression forming analog material direct shear test test specimen, comprise base 1, lateral Displacement rigid sleeve 2, moulding sleeve 3 and metal pressure head 4, within described moulding sleeve 3 is embedded in lateral Displacement rigid sleeve 2 and be placed on base 1, described metal pressure head 4 is positioned in moulding sleeve 3, for to test specimen compression forming.
As preferably, described base 1 is provided with spacing draw-in groove 5, and described lateral Displacement rigid sleeve 2 is suitable with spacing draw-in groove 5, can fix lateral Displacement steel bushing 2.
As preferably, described metal pressure head 4 is right cylinder, even transmission of pressure when sample compression forming.
Specific embodiment of the utility model is,
When sample preparation, moulding sleeve 3 is placed among lateral Displacement steel bushing 2 from top, aim at spacing draw-in groove 5, then moulding sleeve 3 and 2 combinations of lateral Displacement steel bushing are placed on base 1, lateral Displacement steel bushing 2 is snapped among the spacing draw-in groove 5 of circle of base 1, form a relatively-stationary entirety, lateral Displacement steel bushing 2 provides the lateral limitation of rigidity in the time of sample compression forming, 4 of metal pressure heads are pressed into from moulding sleeve 3 tops, evenly transmission of pressure.
When the demoulding, first combined sleeve is taken off from base, then moulding sleeve 3 is taken out among lateral Displacement steel bushing 2, touch metal pressure head 4, can be by complete the sample of making taking-up.
The utility model is combined with usual pressure testing machine, can the required sample of quick Fabrication extrusion forming analog material direct shear test.
The utility model apparatus structure is simple, easy to operate, and sample preparation speed is fast, and sample standardization level and serviceability rate are high, has solved the preparation problem of the required sample of extrusion forming analog material direct shear test.
Be noted that, the above embodiment is explanation to technical solutions of the utility model and unrestricted, other amendments that are equal to replacement or make according to prior art of affiliated technical field those of ordinary skill, as long as do not exceed thinking and the scope of technical solutions of the utility model, within all should being included in the desired interest field of the utility model.
Claims (3)
1. make the mould of compression forming analog material direct shear test test specimen for one kind, it is characterized in that: comprise base, lateral Displacement rigid sleeve, moulding sleeve and metal pressure head, within described moulding sleeve is embedded in lateral Displacement rigid sleeve and be placed on base, described metal pressure head is positioned in moulding sleeve, for to test specimen compression forming.
2. a kind of mould of making compression forming analog material direct shear test test specimen according to claim 1, it is characterized in that: described base is provided with spacing draw-in groove, described lateral Displacement rigid sleeve and spacing draw-in groove are suitable, fixing lateral Displacement steel bushing.
3. a kind of mould of making compression forming analog material direct shear test test specimen according to claim 1, is characterized in that: described metal pressure head is right cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289350.XU CN203949817U (en) | 2014-05-30 | 2014-05-30 | A kind of mould of making compression forming analog material direct shear test test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289350.XU CN203949817U (en) | 2014-05-30 | 2014-05-30 | A kind of mould of making compression forming analog material direct shear test test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203949817U true CN203949817U (en) | 2014-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289350.XU Expired - Fee Related CN203949817U (en) | 2014-05-30 | 2014-05-30 | A kind of mould of making compression forming analog material direct shear test test specimen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203949817U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404497A (en) * | 2016-12-12 | 2017-02-15 | 安徽理工大学 | Three-in-one briquette pressing mould |
| CN109269857A (en) * | 2018-10-31 | 2019-01-25 | 山东科技大学 | A kind of strain brick production mold and its application method |
-
2014
- 2014-05-30 CN CN201420289350.XU patent/CN203949817U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404497A (en) * | 2016-12-12 | 2017-02-15 | 安徽理工大学 | Three-in-one briquette pressing mould |
| CN109269857A (en) * | 2018-10-31 | 2019-01-25 | 山东科技大学 | A kind of strain brick production mold and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20180530 |