CN108051300A - A kind of experimental rig for testing dredging cohesive soil tensile strength - Google Patents
A kind of experimental rig for testing dredging cohesive soil tensile strength Download PDFInfo
- Publication number
- CN108051300A CN108051300A CN201711327128.9A CN201711327128A CN108051300A CN 108051300 A CN108051300 A CN 108051300A CN 201711327128 A CN201711327128 A CN 201711327128A CN 108051300 A CN108051300 A CN 108051300A
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- experimental rig
- tensile strength
- plate
- cohesive soil
- clamping plate
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- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
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- 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)
Abstract
The invention belongs to Dredging Technology fields, more particularly to a kind of experimental rig for testing dredging cohesive soil tensile strength, including fixation device, four part of loading device, displacement tester and bottom plate, fixation device is divided into strap and mobile clamping plate, strap is fixed on bottom plate, mobile clamping plate is oppositely arranged displacement tester, and mobile clamping plate connects loading device, it is characterized in that：The loading device includes bracing wire and the runner with power source, and the bracing wire is connected with runner, and force cell is equipped between the bracing wire and the runner, and the present invention cancels the loading load plate of loading counterweight instead using the runner with power source.
Description
Technical field
The invention belongs to Dredging Technology field, more particularly to a kind of experiment for testing dredging cohesive soil tensile strength
Device.
Background technology
At present, in Dredging and filling engineering, with the continuous development of dredging technology, by typical hard cohesive soil, close sand
The excavation theoretical research of soil and rock is applied in the design of reamer, drag head and ship, can greatly improve the construction effect of dredger
Rate.Increasingly pay attention to the research of dredging basic theory, a series of dredging excavations, the basic theory for conveying and dredging ship equipment innovation
Research topic is carried out.In the research process of dredging work basic theory, the object dredging rock that dredger excavates is be unable to do without
The mechanics index of physics of soil and ground, excavating ground due to dredging work mainly involves the theory of comminution of ground, it is necessary to obtain
Some specific physical mechanical index of ground are dredged, such as dredge the test for tensile strength index of cohesive soil.However in ground geotechnique
These test indexes are seldom used in experiment, go to simulate real experiment without ripe equipment and instrument, according to the basic of experiment
Principle researches and develops earthwork test Instrument in the research of dredging work problem, becomes the technologies such as puzzlement research and development and scheme solution
Problem.
A kind of experimental rig for testing dredging cohesive soil tensile strength disclosed in Application No. 201620670988.7.This reality
Belong to earthwork test Instrument technical field with new, its main feature is that：Experimental rig includes fixation device, loading device, displacement survey
Trial assembly is put is divided into strap and mobile clamping plate with four part of bottom plate, fixation device, and strap is fixed on bottom plate, mobile folder
Plate is oppositely arranged displacement tester, mobile clamping plate connection loading device.The utility model has simple in structure, and test is quick,
The advantages that performance is stablized, and data are reliable, simple and easy to do, and use scope is wide；Test specimen stretcher strain situation can be observed, directly measures examination
The tensile stress of part and stretching strain, but the utility model has ignored a great mistake, i.e., is carried using the loading for loading counterweight
Disk since frictional force is larger at pulley or even gravity beyond counterweight, causes the data and its inaccuracy measured.
The content of the invention
The present invention provides a kind of test dredging cohesive soil tensile strength to solve technical problem present in known technology
Experimental rig.
Have it is an object of the invention to provide one kind simple in structure, test is quick, and performance is stablized, and data are reliable, simple and easy to do,
Use scope is wide；The test for the features such as test specimen stretcher strain situation can be observed, directly measure tensile stress and the stretching strain of test specimen is dredged
Dredge the experimental rig of cohesive soil tensile strength.
A kind of experimental rig for testing dredging cohesive soil tensile strength, experimental rig include fixation device, loading device, position
Four part of test device and bottom plate is moved, fixation device is divided into strap and mobile clamping plate, and strap is fixed on bottom plate, is moved
Dynamic clamping plate is oppositely arranged displacement tester, and mobile clamping plate connects loading device, it is characterized in that：The loading device includes bracing wire
And the runner with power source, the bracing wire are connected with runner, and force cell is equipped between the bracing wire and the runner.
Preferably, bottom plate is surface smooth plate.
Preferably, the surface of surface smooth plate is tempered glass, and bottom is wooden, plastics or metallic plate.
Preferably, strap and displacement tester are connected by screw bolts mode and are fixed on bottom plate.
Preferably, strap and mobile clamping plate are aluminium sheet, and arc-shaped structure prevents test specimen two for clamping test specimen two ends
Hold stress concentration.
Preferably, displacement tester is digital display displacement meter, and digital display displacement meter is fixed on bottom plate.
Compared with the prior art the present invention has following distinguishing feature and good effect：The present invention, which cancels, loads adding for counterweight
The runner of load disk instead use with power source, and force-measuring sensing is equipped between the bracing wire and the runner
Device, inventor have found by experiment for several times, using the loading load plate for loading counterweight, since frictional force is larger or even super at pulley
Go out the gravity of counterweight, cause the data and its inaccuracy measured.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples：
As shown in Figure 1：It is a kind of test dredging cohesive soil tensile strength experimental rig, experimental rig include fixation device,
4 four part of loading device, displacement tester and bottom plate, fixation device are divided into strap 2 and mobile clamping plate 9, strap
It being fixed on bottom plate 4, mobile clamping plate is oppositely arranged displacement tester 8, and mobile clamping plate connects loading device, it is characterized in that：Institute
It states loading device and includes bracing wire 5 and the runner 6 with power source, the bracing wire and be connected with runner, the bracing wire and described turn
Force cell is equipped between wheel.
Label 3 is standard pattern position in Fig. 1.
Strap is connected by bolt with fixing end 1, and fixing end is connected with bottom plate.
Force cell can be integrated in bracing wire, therefore in figure and is not drawn into, and belong to the obvious prior art, force-measuring sensing
Device is connected with device for digit-displaying, this belongs to industry wisdom, and the present invention does not repeat herein.
Preferably, the backplate surface is arranged on smooth plate covered with smooth plate 7, the strap 2 and mobile clamping plate 9
On 7.
Preferably, the surface of surface smooth plate is tempered glass, and bottom is wooden, plastics or metallic plate.
Preferably, strap and displacement tester are connected by screw bolts mode and are fixed on bottom plate.
Preferably, strap and mobile clamping plate are aluminium sheet, and arc-shaped structure prevents test specimen two for clamping test specimen two ends
Hold stress concentration.
Preferably, displacement tester is digital display displacement meter, and digital display displacement meter is fixed on bottom plate.
The present invention is in a kind of examination for testing dredging cohesive soil tensile strength disclosed in Application No. 201620670988.7
Improved on the basis of experiment device, force cell of the invention is arranged between the bracing wire and the runner, therefore measure
Pulling force is more accurate, and more convenient, without worrying, since frictional force is larger at pulley or even gravity beyond counterweight, to cause to measure
Data and its inaccuracy happen.
The present invention is a great discovery, does not obtain the inspiration of the prior art.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of experimental rig for testing dredging cohesive soil tensile strength, experimental rig include fixation device, loading device, displacement
Four part of test device and bottom plate, fixation device are divided into strap and mobile clamping plate, and strap is fixed on bottom plate, mobile
Clamping plate is oppositely arranged displacement tester, and mobile clamping plate connects loading device, it is characterized in that：The loading device include bracing wire with
And the runner with power source, the bracing wire are connected with runner, and force cell is equipped between the bracing wire and the runner.
2. the experimental rig of test dredging cohesive soil tensile strength according to claim 1, it is characterized in that：The bottom plate table
Face is arranged on covered with smooth plate, the strap and mobile clamping plate on smooth plate.
3. the experimental rig of test dredging cohesive soil tensile strength according to claim 2, it is characterized in that：Surface smooth plate
Surface for tempered glass, bottom is wooden, plastics or metallic plate.
4. the experimental rig of the test dredging cohesive soil tensile strength according to claim 1,2 or 3, it is characterized in that：It is fixed
Clamping plate and displacement tester are connected by screw bolts mode and are fixed on bottom plate.
5. the experimental rig of test dredging cohesive soil tensile strength according to claim 1, it is characterized in that：Strap and
Mobile clamping plate is aluminium sheet, and arc-shaped structure prevents test specimen two ends stress concentration for clamping test specimen two ends.
6. the experimental rig of test dredging cohesive soil tensile strength according to claim 1, it is characterized in that：Displacement measurement fills
Digital display displacement meter is set to, digital display displacement meter is fixed on bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327128.9A CN108051300A (en) | 2017-12-13 | 2017-12-13 | A kind of experimental rig for testing dredging cohesive soil tensile strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327128.9A CN108051300A (en) | 2017-12-13 | 2017-12-13 | A kind of experimental rig for testing dredging cohesive soil tensile strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108051300A true CN108051300A (en) | 2018-05-18 |
Family
ID=62132109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711327128.9A Pending CN108051300A (en) | 2017-12-13 | 2017-12-13 | A kind of experimental rig for testing dredging cohesive soil tensile strength |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2624755A1 (en) * | 1975-06-06 | 1976-12-09 | Trefimetaux | METHOD AND DEVICE FOR CONTINUOUS MEASUREMENT OF THE GLUE LEVEL OF WIRE OR TAPE MATERIAL |
| CN101358914A (en) * | 2008-09-18 | 2009-02-04 | 南京电子计量有限公司 | Intelligent pull rope fatigue tester |
| KR20150027916A (en) * | 2013-09-04 | 2015-03-13 | 대우조선해양 주식회사 | Mooring wire tension meter for a vessel |
| CN106226057A (en) * | 2016-08-22 | 2016-12-14 | 中国科学院等离子体物理研究所 | A kind of easy reciprocal non-percussion load charger |
| CN205861456U (en) * | 2016-06-29 | 2017-01-04 | 中交天津港航勘察设计研究院有限公司 | A kind of assay device testing dredging cohesive soil tensile strength |
| CN206399739U (en) * | 2017-01-20 | 2017-08-11 | 张家港市骏马钢帘线有限公司 | Steel cord solder joint rupture pull force detection means |
-
2017
- 2017-12-13 CN CN201711327128.9A patent/CN108051300A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2624755A1 (en) * | 1975-06-06 | 1976-12-09 | Trefimetaux | METHOD AND DEVICE FOR CONTINUOUS MEASUREMENT OF THE GLUE LEVEL OF WIRE OR TAPE MATERIAL |
| CN101358914A (en) * | 2008-09-18 | 2009-02-04 | 南京电子计量有限公司 | Intelligent pull rope fatigue tester |
| KR20150027916A (en) * | 2013-09-04 | 2015-03-13 | 대우조선해양 주식회사 | Mooring wire tension meter for a vessel |
| CN205861456U (en) * | 2016-06-29 | 2017-01-04 | 中交天津港航勘察设计研究院有限公司 | A kind of assay device testing dredging cohesive soil tensile strength |
| CN106226057A (en) * | 2016-08-22 | 2016-12-14 | 中国科学院等离子体物理研究所 | A kind of easy reciprocal non-percussion load charger |
| CN206399739U (en) * | 2017-01-20 | 2017-08-11 | 张家港市骏马钢帘线有限公司 | Steel cord solder joint rupture pull force detection means |
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Application publication date: 20180518 |
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| RJ01 | Rejection of invention patent application after publication |