CN207937266U - polluted soil tensile strength tester - Google Patents
polluted soil tensile strength tester Download PDFInfo
- Publication number
- CN207937266U CN207937266U CN201820029784.4U CN201820029784U CN207937266U CN 207937266 U CN207937266 U CN 207937266U CN 201820029784 U CN201820029784 U CN 201820029784U CN 207937266 U CN207937266 U CN 207937266U
- Authority
- CN
- China
- Prior art keywords
- tensile strength
- corrosion
- horizontal
- soil
- 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
Links
Landscapes
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Polluted Soil tensile strength tester belongs to Soil K+adsorption technical field, it includes chemical attack system, horizontal addload system, tensioning system and data measuring and acquisition system.The chemical attack system includes corrosion box and corrosion lid, can carry out fencing lawn of the sample in chemical solution, simulates the case where live soil body is by corrosion, avoids the disturbance to the soil body.The horizontal addload system includes servo motor, rate controller and stretch rod, it can be achieved that full-automatic load.The tensioning system includes fixed chuck sliding panel and sliding clamp.The data measuring and acquisition system include stress strain gauge and data collector, it can be achieved that test data full-automatic acquisition.Mechanical property of the soil body under chemical attack effect can be effectively measured using the device, advantageous reference is provided to improve Polluted Soil uniaxial tension experimental study.It is the utility model simple structure, easy to operate, it can effectively solve the problems, such as that chemical contamination soil tensile strength can not be measured.
Description
Technical field
The utility model belongs to Soil K+adsorption technical field, and in particular to Polluted Soil tensile strength tester.
Background technology
With industrialized continuous propulsion, many soil layers receive different degrees of chemical contamination, the erosion of chemical substance
It acts on and great influence will produce to the mechanical property of soil, cause Soil Microstructure to change, strength retrogression, and then cause uneven
The problems such as sedimentation, Fracture Deformation.Therefore, in the mechanical property research of soil, it is highly important to consider that chemical attack effect has
Meaning.
Currently, the research for the intensity of soil refers mainly to compression strength and shearing strength, the research to the tensile strength of soil
Seldom.But the differential settlement, slopes sliding in engineering are caused by soil body tensile strength deficiency.Therefore, to soil
Tensile strength research it is very necessary.The tensile strength test method of soil includes mainly that brief introduction tension test and uniaxial direct tensile try
It tests, Indirect Tensile Tests include mainly native beam deflection experiment, diametral compression test and crushing test, these methods are not directly in sample
Upper application pulling force obtains tensile strength on the basis of the experiments such as splitting by theoretical calculation, and result of calculation is deposited with actual strength
In deviation；Direct tensile test includes triaxial extension test and uniaxial tensile test, and section can not be accurate in triaxial extension test
It determines, and instrumentation is complicated, in contrast, uniaxial tensile test is more convenient for engineer application.But present it is uniaxially stretched examination
Test that instrument is directed to is all the common soil body, cannot be satisfied the test requirements document of chemical contamination soil body tensile strength, is mainly manifested in following
Several aspects： 1）Currently, soil body Tensile Tester can be used for measuring the intensity of the soil body after chemical contamination, but cannot achieve
The measurement of chemical solution and the tensile strength of soil when load collective effect；2）Common soil body tensilometer is tested in tension process
In it is larger by frictional force and Influence from Eccentric, easily cause large error.Therefore, research and development one kind can be used for measuring Polluted Soil tensile strength
Testing equipment have highly important engineering significance.
Invention content
The utility model provides features simple structure, test data accurately and can realize chemical attack and load collective effect
Under, a kind of test device of chemical contamination soil tensile strength of the straightway testing of soil body tensile strength.
A kind of Polluted Soil tensile strength tester, including chemical attack system, tensioning system, horizontal addload system and data
Measure acquisition system.Chemical attack system, tensioning system, horizontal addload system and data measuring and acquisition system are arranged at level
On cushion cap.
The chemical attack system includes that corrosion box and corrosion are covered, and the corrosion box is placed on horizontal cushion cap.
The horizontal addload system includes servo motor, rate controller, horizontal stretch bar, horizontal stretch bar one end
It is connected with sliding clamp, the horizontal stretch bar other end is connect with servo motor, and servo motor provides tensile load for the soil body.
The tensioning system includes the stationary fixture for being fixed on the corrosion cassette bottom portion, the sliding panel and cunning of placing soil sample
Dynamic fixture；Sliding panel is connect with sliding clamp；The sliding panel bottom is equipped with ball, and ball is arranged on trapped orbit and solid
It is slided along soil sample draw direction on orbit determination road, the load gear for preventing sliding panel horizontal displacement excessive is provided in draw direction
Plate.
The data measuring and acquisition system includes strain gauge, strain transducer and data collector, and the stress passes
Sensor, strain transducer, which are respectively positioned on, to be stretched between boom end and load baffle.
Preferably, two trapped orbits corrode along parallel be fixed on of sample draw direction on box plate, it is described solid
Ball is placed between orbit determination road and the sliding panel, the trapped orbit is coated in test lubricating oil.
Preferably, the tensioning system and chemical attack system are made of corrosion resistant inorganic material.
Preferably, having spirit level and adjusting bolt on the horizontal cushion cap, the adjusting bolt is located at the level and holds
The quadrangle of platform, the level for ensureing bearing sheet.
Preferably, the stationary fixture is connect with horizontal cushion cap by fixing bolt, the stationary fixture is divided into above and below
Two parts, stationary fixture are fixed sample by bolt, and rubber pad is equipped between sample and stationary fixture.
Preferably, there are two the Data Data collectors, the first data collector passes through data line and stress sensing
Device is connected, and the second data collector is connect by data line with strain transducer.
The utility model is for when measuring chemical contamination soil tensile strength, effect to be：
1）Slow infiltration of the chemical solution in soil body sample can be achieved, corrosion is uniform, avoids what local corrosion was brought
Error；
2）The measurement that chemical solution corrosiveness and soil strength under load collective effect can be achieved is avoided to soil
Disturbance, it is more acurrate to measure result；
3）Used tensioning system effectively prevents the influence of frictional force and wobbler action to test result；
4）The utility model is simple in structure easy to operate, highly practical, convenient for promoting；
5）Full automatic loading system and data collecting system are used, test result is more acurrate, is convenient for analysis and utilization.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the corrosion box lateral sectional view of the utility model.
1. horizontal cushion cap in figure, 2. corrosion boxes, 3. bolts, 4. corrosion box covers, 5. strain transducers, 6. first data lines,
7. the first data collector, 8. second data collectors, 9. rate controllers, 10. servo motors, 11. spirit levels, 12. are adjusted
Bolt, 13. second data lines, 14. load baffles, 15. strain gauges, 16. stretch boom end, 17. stretch rods, 18. slidings
Fixture, 19. balls, 20. trapped orbits, 21. sliding panels, 22. samples, 23. stationary fixtures, 24. fixture bolts, 25. testing stands
Face.
Specific implementation mode
Shown in Fig. 1, Fig. 2, Polluted Soil tensile strength tester, including horizontal cushion cap 1, the change on horizontal cushion cap 1 is set
Learn etching system, horizontal addload system, tensioning system and data measuring and acquisition system.Wherein tensioning system setting is in corrosion box 2
Inner cavity.
The chemical attack system includes corrosion box 2 and corrosion box cover 4, and the corrosion box 2 is placed on horizontal cushion cap, rotten
Erosion box 2 is fixedly connected with corrosion box cover 4 by bolt 3.
It is equipped with the second data line 13, load baffle 14,15 and of strain gauge on horizontal cushion cap and positioned at 2 side of corrosion box
Stretch boom end 16.
The horizontal addload system includes servo motor 10, rate controller 9, horizontal stretch bar 17, the horizontal stretch
11 one end of bar is connected with sliding clamp 18, and 11 other end of horizontal stretch bar is connect with servo motor 10, and servo motor 10 connects speed
Rate controller 9, servo motor 10 provide tensile load for the soil body.
The tensioning system includes the stationary fixture 23 for being fixed on corrosion cassette bottom portion, places the sliding panel 21 of soil sample and slide
Dynamic fixture 18；Trapped orbit 20 is fixedly mounted on corrosion cassette bottom portion, and ball 19 arranged at 21 bottom of the sliding panel, sliding clamp 18 with
Sliding panel 21 connects, and sliding panel 21 is slided by the trapped orbit 20 embedded in the corrosion cassette bottom portion along soil sample draw direction,
The load baffle for preventing sliding panel horizontal displacement excessive is provided in draw direction.
The data measuring and acquisition system includes strain transducer 5, strain gauge 15, the first data collector 7, second
Data collector 8, the strain transducer 5, strain gauge 15, which are located at, to be stretched between boom end 16 and load baffle 14.
Preferably, two trapped orbits are arranged in parallel in along sample draw direction on corrosion box plate, it is described solid
Place ball between orbit determination road and the sliding panel, the track is coated in test lubricating oil, the sliding panel by track with
Ball is moved along sample draw direction.
Preferably, the tensioning system and chemical attack system are made of corrosion resistant inorganic material.
Preferably, the horizontal cushion cap is equipped with spirit level 11 and adjusting bolt 12, the adjusting bolt 12 is located at described
Bearing sheet quadrangle, the level for ensureing bearing sheet.
Preferably, the stationary fixture 23 is connect with corrosion box plate, the stationary fixture is divided into upper and lower two parts,
Sample is fixed by bolt, rubber pad is equipped between sample and stationary fixture.
Preferably, the first data collector 7 is connected by the first data line 6 with strain transducer 5, the acquisition of the second data
Device 8 is connect by the second data line 13 with strain gauge 15.Servo motor 10 respectively with strain transducer 5, strain gauge
15 connections.
The application method of the utility model：
1, the coating lubricating oil on sliding panel 21 and soil sample contact surface and trapped orbit 20, avoids frictional force from tying experiment
The influence of fruit.
2, the soil sample 22 made is placed on sliding panel 21 above and between stationary fixture 23 and sliding clamp 18, to protect
The effective connection for demonstrate,proving sample and fixture, is bonded between sample normal section and sliding clamp 18 by glue, to prevent stress concentration
Appearance, sheet rubber is equipped between stationary fixture 23 and sample side contacts face, and by fixture bolt 24 by sample and geometrical clamp
Tool 23 is fixed.
3, the adjusting bolt 12 for adjusting horizontal cushion cap quadrangle, keeps 11 bubble of spirit level placed in the middle, ensures sample axial tension.
4, chemical solution is added into chemical attack box 2, covers corrosion box cover 4, chemical solution slowly penetrates into sample, to soil
Sample carries out chemical maintenance.
5, after the completion of conserving, it is ensured that stretch boom end 16 and filled with strain gauge 15, strain transducer 5 and load baffle 14
Tap is touched.
6, regulations speed controller 9 starts servo motor 10, pulls sliding panel 21 along trapped orbit 20 by stretch rod 17
Direction is slided, and records the parameters such as time, stress, strain in the process.
Claims (6)
1. Polluted Soil tensile strength tester, it is characterized in that including chemical attack system, tensioning system, horizontal addload system sum number
According to measurement acquisition system；The chemical attack system includes that corrosion box and corrosion are covered, and tensioning system is equipped in the corrosion box；Institute
It includes the stationary fixture for being fixed on the corrosion cassette bottom portion, the sliding panel and sliding clamp of placing soil sample, institute to state tensioning system
It states sliding panel bottom and is equipped with ball, ball is arranged on trapped orbit and is slided along soil sample draw direction, set in draw direction
It is equipped with the load baffle for preventing sliding panel horizontal displacement excessive；The horizontal addload system includes servo motor, rate controller
And horizontal stretch bar, the horizontal stretch bar are connected with sliding clamp, servo motor connection speed controller, servo motor connection
Horizontal stretch boom end, the data measuring and acquisition system include strain gauge, strain transducer and data collector, stress
Sensor, strain transducer connect data collector, and strain gauge, strain transducer are all connected with servo motor.
2. Polluted Soil tensile strength tester according to claim 1, it is characterized in that：The trapped orbit is stretched along sample
Direction is parallel to be fixed on corrosion box plate, and the trapped orbit is coated in test lubricating oil, and the sliding panel passes through track
It is moved along sample draw direction with ball.
3. Polluted Soil tensile strength tester according to claim 1, it is characterized in that：The chemical attack system stretches
System, horizontal addload system and data measuring and acquisition system, which are arranged at, to be stated on horizontal cushion cap.
4. Polluted Soil tensile strength tester according to claim 3, it is characterized in that：The horizontal cushion cap is equipped with level
Device and adjusting bolt, the adjusting bolt are located at the quadrangle of horizontal cushion cap, the level for ensureing bearing sheet.
5. Polluted Soil tensile strength tester according to claim 1, it is characterized in that：The stationary fixture and corrosion cassette bottom
Plate connects, and the stationary fixture is divided into upper and lower two parts, and stationary fixture is fixed sample by bolt, sample and the fixation
Rubber pad is equipped between fixture.
6. Polluted Soil tensile strength tester according to claim 1, it is characterized in that：There are two the data collectors,
First data collector is connected by data line with strain gauge, and the second data collector passes through data line and strain transducer
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029784.4U CN207937266U (en) | 2018-01-09 | 2018-01-09 | polluted soil tensile strength tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029784.4U CN207937266U (en) | 2018-01-09 | 2018-01-09 | polluted soil tensile strength tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937266U true CN207937266U (en) | 2018-10-02 |
Family
ID=63648933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820029784.4U Expired - Fee Related CN207937266U (en) | 2018-01-09 | 2018-01-09 | polluted soil tensile strength tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207937266U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374404A (en) * | 2018-11-02 | 2019-02-22 | 河海大学 | A kind of sample preparation device, method and the test method of geotechnique's tension test |
| CN109900915A (en) * | 2019-03-18 | 2019-06-18 | 山西大学 | A kind of full-automatic chemical Polluted Soil modulus of resilience tester |
| CN111678776A (en) * | 2020-04-24 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Indirect stretching device for testing tensile strength of rock |
| CN111855411A (en) * | 2020-07-31 | 2020-10-30 | 中国人民解放军空军工程大学 | Direct pulling/drawing tester and testing method for geosynthetics |
-
2018
- 2018-01-09 CN CN201820029784.4U patent/CN207937266U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374404A (en) * | 2018-11-02 | 2019-02-22 | 河海大学 | A kind of sample preparation device, method and the test method of geotechnique's tension test |
| CN109900915A (en) * | 2019-03-18 | 2019-06-18 | 山西大学 | A kind of full-automatic chemical Polluted Soil modulus of resilience tester |
| CN111678776A (en) * | 2020-04-24 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Indirect stretching device for testing tensile strength of rock |
| CN111855411A (en) * | 2020-07-31 | 2020-10-30 | 中国人民解放军空军工程大学 | Direct pulling/drawing tester and testing method for geosynthetics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207937266U (en) | polluted soil tensile strength tester | |
| CN201145658Y (en) | Portable on site and indoor dual-purpose direct shear test instrument | |
| CN101105433B (en) | Portable on-spot and indoor dual-purpose direct-cutting experiment instrument and its sampling method | |
| CN105784304B (en) | A kind of multifunctional fastener testing experiment machine | |
| CN109374855B (en) | Test device and test method for simulating railway roadbed slurry-rolling mud-pumping disease phenomenon | |
| CN101655432B (en) | uniaxial tension and soil beam bending tester | |
| CN104458428B (en) | Large-sized fluid-solid-heat multi-field coupling test loading system | |
| CN105862937B (en) | One kind pressure, pull out comprehensive laboratory experiment stake bath scaled model experimental device | |
| CN102914475B (en) | Shear test device for observing mechanical property of interface between underwater soil and structure | |
| CN104727354B (en) | The test system of simulation loop load lower plate anchor limit dynamic bearing capacity | |
| CN105842086A (en) | Low-friction laminar ring type bidirectional dynamic shear testing machine | |
| CN103149078A (en) | Tension-compression-torsion-shearing coupling-based stress path triaxial apparatus | |
| CN108444816B (en) | Rock mass structural plane cyclic shear tester and test method | |
| CN108982264B (en) | P-y curve measuring device based on soil body shear band development | |
| CN110629812B (en) | Loading test device and method for vertical dynamic and static loads of single pile | |
| CN106950116A (en) | Coupling between bending and extension corrosion fatigue testing machine | |
| CN112525728A (en) | Large-size reinforced soil shear strength testing equipment and testing method | |
| CN111089799A (en) | Vertical loading test device and test method for indoor model pile | |
| CN108645712A (en) | Geosynthetics tensile test apparatus based on soil medium | |
| CN107179242B (en) | A kind of manual simplified true triaxil tester | |
| CN105758727A (en) | Electric loess drawing instrument | |
| CN207850594U (en) | Steel chord type anchor ergometer calibrating installation | |
| CN110308049A (en) | Multidimensional loads comprehensive test system | |
| CN109932246B (en) | Geosynthetic material roof pressure creep test device | |
| CN205384192U (en) | Measure geosynthetic material elastic modulus's test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181002 Termination date: 20210109 |