CN205642990U - A extensometer for rock compression test - Google Patents
A extensometer for rock compression test Download PDFInfo
- Publication number
- CN205642990U CN205642990U CN201620283165.9U CN201620283165U CN205642990U CN 205642990 U CN205642990 U CN 205642990U CN 201620283165 U CN201620283165 U CN 201620283165U CN 205642990 U CN205642990 U CN 205642990U
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- CN
- China
- Prior art keywords
- rock
- extensometer
- survey
- ware
- rock sample
- 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.)
- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an extensometer for rock compression test, it moves the ware by base and survey to constitute. The base constitute by semicircle ring sum steel column, semicircle ring be be used for with the extensometer fastening on the loading cushion, foil gage and screw rod, the lateral strain that can accurately measure the rock test piece are installed to the steel column. The survey move the ware and constitute by two semicircle steel rings, survey and move the ware fastening on the load cushion, thereby survey when rock test piece compressed and move the ware and move down extrusion steel column lateral movement and measure the axial strain of rock. The utility model discloses simple structure, convenient operation, the cost of manufacture is low, can be fast, the efficient installs the extensometer.
Description
Technical field
This utility model relates to a kind of extensometer, particularly relates to a kind of extensometer for compression test of rock.
Background technology
Rock stratum environment residing for underground engineering also exists the weak structure faces such as many crack, joint, tomographies, these weak structures bring the biggest uncertainty in the face of safety and the stability of underground engineering, so the extension mechanism grasping rock fracture descends the stability of structure and safety to have important directive significance over the ground.
Laboratory test is the common method of research fissure rock destructive process, need that when carrying out compression test of rock extensometer is installed and measure axial strain and lateral strain, but the extensometer installing compression test of rock at the trial is abnormal loaded down with trivial details, and this greatly reduces the efficiency that test is carried out.For making up above-mentioned deficiency, need to invent a kind of novel extensometer for compression test of rock to improve work efficiency, reduce labor intensity.
Summary of the invention
This utility model is for the deficiency of existing compression test of rock extensometer, it is provided that a kind of installation compression test of rock extensometer more convenient, efficient, to solve to install at the trial the problem that extensometer runs into.
A kind of structure for the extensometer of compression test of rock of this utility model is: is moved device by base and survey and forms.
Described base is to be made up of semicircular ring and steel column, and the internal diameter of semicircular ring is 50mm, and semicircular ring both sides are respectively welded junction steel plate, and junction steel plate is provided with bolt hole, can secure it within loading cushion block with bolt；Steel column is welded in semicircular ring, and steel column has foil gauge and screw rod, can be measured the lateral strain of rock sample accurately by foil gauge, and by floor installation, well turning screw rod is brought into contact with rock sample afterwards.
Described survey moves device and is made up of two semicircle steel rings, the internal diameter of semicircle steel ring is 50mm, semicircle steel ring both sides are respectively welded junction steel plate, bolt hole it is provided with on junction steel plate, securing it within loading cushion block with bolt after survey shifting device is regulated position, when rock sample is compressed, survey shifting device moves down extruding steel column shifted laterally thus measures the axial strain of rock sample.
The advantage of a kind of extensometer for compression test of rock of this utility model is.
(1) this device is easy to operate, and installation effectiveness can be greatly improved.
(2) this apparatus structure is simple, and cost of manufacture is low.
(3) this device each several part is all detachable, easy to carry.
Accompanying drawing explanation
Fig. 1 is extensometer schematic diagram；Fig. 2 is to survey to move device side view.
Marginal data: 1-base；2-semicircular ring；3-steel column；4-surveys and moves device；5-semicircle steel ring；6-screw rod；7-rock sample；8-foil gauge.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model detailed description of the invention is elaborated.
Being configured to of a kind of extensometer for compression test of rock of this utility model as shown in the figure: by base 1 with survey and move device 4 and form.
Described base 1 is to be made up of semicircular ring 2 and steel column 3, the internal diameter of semicircular ring 2 is 50mm, semicircular ring 2 both sides are respectively welded junction steel plate, bolt hole it is provided with on junction steel plate, can secure it within loading cushion block with bolt, semicircular ring 2 upper weld has steel column 3, and steel column 3 has foil gauge 8 and screw rod 6, the lateral strain of rock sample 7 can be measured by foil gauge 8 accurately, turn screw rod 6 be afterwards brought into contact with rock sample 7 base 1 is installed.
Described survey moves device 4 and is made up of two semicircle steel rings 5, the internal diameter of semicircle steel ring 5 is 50mm, semicircle steel ring 5 both sides are respectively welded junction steel plate, bolt hole it is provided with on junction steel plate, securing it within bolt on loading cushion block after survey shifting device 4 is regulated position, when rock sample 7 is compressed, survey shifting device moves down extruding steel column 3 shifted laterally thus measures the axial strain of rock sample 7.
The operational approach of a kind of extensometer for compression test of rock of this utility model: first, is placed on rock sample 7 on loading cushion block；Second step, is fastened on extensometer base 1 bolt on loading cushion block；3rd step, after base 1 fastening is good, turns screw rod 6 and is brought into contact with rock sample 7；4th step, after base 1 installs, fastens with bolt after rock sample 7 top is placed and surveyed shifting device 4 to correct position.
Claims (1)
1. a rock sample external crack producing device, it is characterized in that including base plate, rock sample fixed system, cutting machine fixes feeding system, described base plate is connected by bearing with rock sample fixed system, described rock sample fixed system is by the circular steel plate connecting bearing, sliding rail, sliding panel, draw bolt is constituted, described sliding rail is fixed on described circular steel plate, described sliding panel is placed on sliding rail, described draw bolt is connected on sliding panel, base plate bottom is provided with cutting machine and fixes feeding system, described cutting machine is fixed feeding system and is included column, to inlet, cutting machine, described column is welded on base plate bottom, described it is placed in above column to inlet, described cutting machine is fixed on the card being connected with feeding system and buckles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283165.9U CN205642990U (en) | 2016-04-07 | 2016-04-07 | A extensometer for rock compression test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620283165.9U CN205642990U (en) | 2016-04-07 | 2016-04-07 | A extensometer for rock compression test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205642990U true CN205642990U (en) | 2016-10-12 |
Family
ID=57067411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620283165.9U Expired - Fee Related CN205642990U (en) | 2016-04-07 | 2016-04-07 | A extensometer for rock compression test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205642990U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525590A (en) * | 2016-12-14 | 2017-03-22 | 武汉科技大学 | Static deformation experiment device for testing low-strength test piece |
| CN106769420A (en) * | 2017-02-24 | 2017-05-31 | 南华大学 | A kind of axial strain test device when being loaded for non-standard test specimen |
| CN108088735A (en) * | 2018-01-15 | 2018-05-29 | 华侨大学 | A kind of Axial extensometer erecting device |
| CN109459318A (en) * | 2018-12-19 | 2019-03-12 | 北京科技大学 | A kind of active and passive real-time sonic test approved sample device and method of rock failure mechanism of rock process |
| CN110017787A (en) * | 2019-05-14 | 2019-07-16 | 中国科学院高能物理研究所 | Strain gauge means and strain measurement method |
| CN110864962A (en) * | 2019-11-04 | 2020-03-06 | 华侨大学 | Rock sample axial extensometer |
-
2016
- 2016-04-07 CN CN201620283165.9U patent/CN205642990U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525590A (en) * | 2016-12-14 | 2017-03-22 | 武汉科技大学 | Static deformation experiment device for testing low-strength test piece |
| CN106769420A (en) * | 2017-02-24 | 2017-05-31 | 南华大学 | A kind of axial strain test device when being loaded for non-standard test specimen |
| CN108088735A (en) * | 2018-01-15 | 2018-05-29 | 华侨大学 | A kind of Axial extensometer erecting device |
| CN109459318A (en) * | 2018-12-19 | 2019-03-12 | 北京科技大学 | A kind of active and passive real-time sonic test approved sample device and method of rock failure mechanism of rock process |
| CN110017787A (en) * | 2019-05-14 | 2019-07-16 | 中国科学院高能物理研究所 | Strain gauge means and strain measurement method |
| CN110864962A (en) * | 2019-11-04 | 2020-03-06 | 华侨大学 | Rock sample axial extensometer |
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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: 20161012 Termination date: 20170407 |