CN106989995A - A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device - Google Patents
A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device Download PDFInfo
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- CN106989995A CN106989995A CN201710445769.8A CN201710445769A CN106989995A CN 106989995 A CN106989995 A CN 106989995A CN 201710445769 A CN201710445769 A CN 201710445769A CN 106989995 A CN106989995 A CN 106989995A
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- lateral spacing
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- side wall
- test device
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- 239000011435 rock Substances 0.000 title claims abstract description 42
- 239000002689 soil Substances 0.000 title claims abstract description 33
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 238000012669 compression test Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 23
- 238000007906 compression Methods 0.000 description 23
- 238000000034 method Methods 0.000 description 13
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009533 lab test Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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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- 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)
Abstract
Ancillary test device is vertically compressed the invention discloses a kind of adjustable Rock And Soil of lateral spacing condition.The adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device including bottom plate, left side wall, right side wall, front side wall, rear wall, screw thread, bolt, pressure transmission module, displacement transducer, compares side stage.The bottom plate and each side wall can aid in conventional press to implement the indoor without six kinds of vertical compression tests such as lateral spacing, one side lateral spacing, proximal surface lateral spacing, opposite lateral spacing, three surface sides limit and complete lateral spacings of Rock And Soil sample by flexibly installing and dismantling, just.The free face of cuboid sample directly lays displacement transducer, is connected by data wire and can be achieved that Rock And Soil sample is vertical or real-time collection of horizontal direction displacement data after computer.Compared with prior art, using design of the present invention, innovative solves the problem of prior art means lateral spacing operating mode applies relatively single.
Description
Art
The present invention relates to a kind of vertical compression ancillary test device, refer in particular in Geotechnical Engineering field by servo pressure
Machine carries out the ancillary test device of the vertical compression test of Rock And Soil, the i.e. adjustable Rock And Soil of lateral spacing condition and vertically compresses auxiliary examination
Experiment device.
Background technology
For the Rock And Soil during military service, the presence of the difference of confined pressure state, especially free face can influence its power
Learn performance.According to position of the Rock And Soil in building structure or nature, and consider after the quantity and its relative position of free face
Compression operating mode can be reduced to six kinds of situations, be respectively：1. without lateral spacing compression operating mode, such as common rocks cylinder；2. one side lateral spacing
Compression operating mode, if any the rock cylinder in the face of support；3. the compression rock mass that proximal surface lateral spacing compression operating mode, such as corner are protruded；4. opposite
Lateral spacing compression operating mode, such as rock strip footing；5. three surface sides limit compression operating mode, and such as high cutting-slope rock faces the rock mass at sky position；⑥
Completely（On four sides）Lateral spacing compression operating mode, such as deep rock mass.All kinds of compression operating modes cause to answer during its military service because confined pressure is different
The power regularity of distribution differs, and bearing capacity has very big difference.
At present, generally realized and Rock And Soil is deformed under various operating modes and strong using following three kinds of indoor and outdoor tests methods
The research of degree, method one：Without lateral spacing uniaxial compression test, this method is by variously-shaped rock samples or soil such as cylinder and corner post shapes
Sample is directly placed in press device pressurization storehouse, by being axially further applied load and being tested, and sample lateral displacement is not under the operating mode
It is constrained, cause sample compression failure eventually through axial pressure；Method two：Common triaxial compression test, also referred to as false three axle
Cylindrical rock sample is placed in the container with hydraulic pressure by compression test, this method, and constant enclose is applied to cylindrical Rock And Soil sample
Apply axial compressive force after pressure again, until occurring failure by shear；Method three：True triaxial compression test, this method uses direct prism
Body or cube rock sample, are accompanied by the backing plate for eliminating end-face friction, and pressure of different sizes is applied from tri- directions of X, Y, Z, to survey
Determine deformation and the strength characteristic of sample.
For method one, only stress in its axial direction, and its horizontal direction displacement is unrestricted, therefore nothing can only be simulated
The compression operating mode of lateral spacing；To second of test method, ordinary triaxial test intermediate principal stress and minor principal stress are equal（σ2=σ3）, it is exactly
Sample is set to be tested under axisymmetric stress state, this obviously can not be applied to all operating modes, because actual Geotechnical Environment
In, the big principal stress, intermediate principal stress and minor principal stress suffered by native unit are often unequal, therefore can not simulate actual compression
The stress-strain relation of Rock And Soil under operating mode；Though the true triaxial compression test in method three is on the basis of false triaxial compression test
Improve to some extent, rock sample is in three principal stresses unequal（That is σ1>σ2>σ3）Stress assembled state under, but still not
The actual military service operating modes such as unilateral limited, adjacent side lateral spacing can be simulated, while true triaxial test machine used in this method, which exists, makes pole
The shortcomings of its costliness, high energy consumption, complex operation.
In summary, lateral spacing condition can be adjusted flexibly by designing and developing out one kind, and can be used on conventional press
Vertical compression ancillary test device has very strong necessity.The ancillary test device machine after by flexibly dismounting
The laboratory test of foregoing six kinds of operating modes is realized, and then lab simulation Geotechnical Engineering field is in the Rock And Soil of different duty status
Deformation and mechanical property, the exploitation of the device are with a wide range of applications.
The content of the invention
The content of the invention is summarized
In order to solve to use when Rock And Soil intensity in the prior art and Study on Deformation, true triaxial test machine is costly, it is multiple to operate
Miscellaneous, high energy consumption, poor practicability and the problems such as be difficult to realize simulation to above-mentioned all six kinds of operating modes residing for Rock And Soil, the present invention is carried
Supply that a kind of simple in construction, easy to operate, with low cost, practicality is high, energy consumption is low, the real time measure and can record, and can realize
The adjustable Rock And Soil of lateral spacing condition for simulating foregoing six kinds of soil bodys lateral spacing compression operating mode vertically compresses ancillary test device.
The technical problem intended to solve and the technical scheme taken
The technical problem underlying that the present invention is intended to solve, which is that design is a set of, to be used for indoors during conventional vertical compression test
Auxiliary changes the device of sample lateral spacing condition, the device must realize sample lateral spacing condition can flexible modulation, and can be normal with interior
Rule forcing press is supported the use.
In order to solve the above technical problems, the adjustable Rock And Soil of lateral spacing condition, which vertically compresses ancillary test device, includes bottom
Plate, left side wall, right side wall, front side wall, rear wall, screw thread, bolt, pressure transmission module, displacement transducer, compare side stage.Its feature exists
In:Several screws are provided with the bottom plate, and reserve good screw thread, each side wall can be made by bolt and bottom plate is threadedly secured in
On；The left side（It is right）Side wall is made up of a bar shaped bottom plate and one side rectangular panel, and screw is reserved on bar shaped bottom plate, can pass through spiral shell
Bolt is with before（Afterwards）Side wall is fixed or dismantled；Before described（Afterwards）Side wall is by a bar shaped bottom plate, one side rectangular panel and two bars
Shape riser is constituted, and is all evenly arranged screw, screw thread, bolt on bar shaped bottom plate and two bar shaped risers, and can pass through bolt and a left side
（It is right）Side wall installation and removal；It is left（It is right）Side wall is with before（Afterwards）Side wall, which surrounds internal diameter cavity, to be used to load sample, and length is multiplied by wide chi
Very little is 150cm × 150cm, is highly 180cm ~ 200cm, so that standard cube sample can be just put into wherein；The pressure transmission
Module is made up of cylinder and a bottom plate, and the width of bottom plate is slightly less than abovementioned cavity size 150cm × 150cm, it just may be used
Specimen surface is placed on, and can be moved up and down under forcing press effect.During experiment, sample is loaded in cavity first, by pressing mold
Block is placed on cuboid sample surface, makes sample vertical applied force uniform.Institute's displacement sensors than scaffold tower by fixing, displacement sensing
The side displacement data of sample in process of the test can be gathered in real time automatically after device connection computer, and displacement transducer can select market
Upper Technical comparing ripe amesdial, displacement meter or laser range finder etc..It is described displacement transducer can be fixed on than scaffold tower it is vertical
The free face position of cube sample, and the position of displacement transducer can be adjusted manually, to determine sample in each lateral spacing pressure
Under horizontal displacement.
The beneficial effect of invention
Compared with prior art, using design of the present invention, it is possible to achieve following beneficial effect：
（1）The above-mentioned adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device, by flexibly dismounting front, rear, left and right
Retaining wall changes the lateral spacing condition of sample, to realize the simulation to the different compression operating mode of Rock And Soil, efficiently solve traditional triaxial apparatus,
The problem of true triaxil tester operating condition of test is single, and with simple to operate, the advantages of practical.
（2）The above-mentioned adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device, has merged by more solid than scaffold tower
Fixed displacement transducer, and by data wire connect computer data acquisition, can in real time be gathered in experimental project Rock And Soil by
The displacement of free face in the case of pressure；Than scaffold tower in addition to playing a part of fixed displacement sensor, it also has rotary type
In spiral arm, process of the test can human intervention command displacement sensor direction and angle, have the advantages that convenient, practical.
（3）The above-mentioned adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device, loads the cavity and biography of sample
Power apparatus is made up of steel, and of a relatively high strength and stability is able to ensure that the precision and accuracy of result of the test.
（4）The above-mentioned adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device, and it also includes pressure transmission module, passes
The bottom plate of die block is smooth panel, and top is steel cylinder.Steel cylinder directly bears the vertical of forcing press transmission
Pressure, smooth panel can uniformly transfer vertical pressure.
Brief description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the shaft side figure of the present invention.
Fig. 2 is the structure chart of equipment bay.
Before Fig. 3 is（Afterwards）The structure chart of side wall.
Fig. 4 is left（It is right）The structure chart of side wall.
Fig. 5 is the pressure transmission module for connecting forcing press and sample.
Fig. 6 is the device for recording sample free face displacement
In figure：1. bottom plate, before 2.（Afterwards）The bar shaped bottom plate of side wall, 3. bolts, before 4.（Afterwards）The rectangular panel of side wall,
5. it is left（It is right）The bottom plate of side wall, 6. is left（It is right）The bar shaped riser of side wall, 7. is left（It is right）The rectangular panel of side wall, 8. pressure transmission moulds
The bottom plate of block, the cylinder of 9. pressure transmission modules, 10. than scaffold tower, 11. displacement transducers.
Embodiment
This technology is described further with reference to the accompanying drawings and detailed description.
What the present invention was achieved in that, several screws are provided with the bottom plate 1, and good screw thread is reserved, can lead to each side wall
Cross bolt 3 and be threadedly secured on bottom plate 1 or dismantled by loosering a bolt.Before described（Afterwards）Side wall（Fig. 3）By one
Bar shaped bottom plate 2 and one side rectangular panel 4 are constituted, and screw is reserved on bar shaped bottom plate 2, can pass through bolt 3 and a left side（It is right）Side wall（Fig. 4）
Fixed and dismounting.A described left side（It is right）Side wall is made up of a bar shaped bottom plate 5, a rectangular panel 7 and two bar shaped risers 6,
Screw, screw thread, bolt are all evenly arranged on bar shaped bottom plate 5 and two bar shaped risers 5, and can be by bolt 3 with before（Afterwards）Side wall
Installation and removal.It is described that displacement transducer 11 can be fixed on to the free face position of cuboid sample than scaffold tower 10, and can be manually
The position of displacement transducer 11 is adjusted, to determine horizontal displacement of the sample under each lateral spacing pressure.
Setting on six kinds of operating modes in process of the test does as described below：It is just that four surface side walls are all fallen by Bolt dismantling
Form the compression operating mode of no lateral spacing；When will wherein three faces dismounting after, just form one side lateral spacing compression operating mode；When leaving behind phase
Adjacent both sidewalls, just form adjacent side lateral spacing compression operating mode；When removing a front side wall and a rear wall, opposite side is just formed
Lateral spacing compression operating mode；When only removing a surface side wall, three surface sides limit compression operating mode is just formd；When four surface side walls are all installed
Into just foring the compression operating mode of four sides lateral spacing.In this way, the compression ancillary test is installed on into conventional press to combine
Just can implement laboratory test to foregoing six kinds of operating modes residing for Rock And Soil, and in real time the vertical and level of collection sample to change
Shape, further to analyze the features such as ess-strain and deformation of the Rock And Soil under various complex working conditions, intensity.
Claims (5)
1. a kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device, it is characterized in that including bottom plate, left side wall,
Right side wall, front side wall, rear wall, screw thread, bolt, pressure transmission module, displacement transducer, compare side stage.
2. a kind of adjustable Rock And Soil of lateral spacing condition according to claim 1 vertically compresses ancillary test device, it is special
Levying is：The device is made up of steel prepared material.
3. a kind of adjustable Rock And Soil of lateral spacing condition according to claim 1 vertically compresses ancillary test device, it is special
Levying is：The length and width of its internal diameter are all 150mm, and height control is in 180cm ~ 200cm.
4. a kind of adjustable Rock And Soil of lateral spacing condition according to claim 1 vertically compresses ancillary test device, it is special
Levying is：Institute's displacement sensors are to be erected at the electronic dial gauge than on scaffold tower, wherein electronic dial gauge can also be changed to dial gauge,
Displacement meter or laser range finder.
5. a kind of adjustable Rock And Soil of lateral spacing condition according to claim 1 vertically compresses ancillary test device, experiment
During it is characterized in that by the control of bolt, just can be realized on forcing press all Geotechnical Engineering fields to cuboid sample without
Lateral spacing, one side lateral spacing, proximal surface lateral spacing, opposite lateral spacing, three surface sides limit and examination in the vertical discharge chambe of six kinds of operating modes such as lateral spacing completely
Test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445769.8A CN106989995A (en) | 2017-06-15 | 2017-06-15 | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710445769.8A CN106989995A (en) | 2017-06-15 | 2017-06-15 | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device |
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| CN106989995A true CN106989995A (en) | 2017-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710445769.8A Pending CN106989995A (en) | 2017-06-15 | 2017-06-15 | A kind of adjustable Rock And Soil of lateral spacing condition vertically compresses ancillary test device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108195680A (en) * | 2018-02-22 | 2018-06-22 | 长安大学 | A kind of experimental rig for applying different constraints to native unit |
| CN108871935A (en) * | 2018-08-02 | 2018-11-23 | 中南大学 | A kind of pressure chamber for pile-soil interface shear property test device |
| CN109001095A (en) * | 2018-07-11 | 2018-12-14 | 西安石油大学 | Reservoir pore space Evolution Simulation experimental provision |
| CN109115608A (en) * | 2018-09-21 | 2019-01-01 | 三峡大学 | A kind of more size adjustable rock cleavage test boxs and method |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| CN109520843A (en) * | 2019-01-17 | 2019-03-26 | 湖南科技大学 | A kind of device and application method measuring different depth rock crusher degree |
| CN109855961A (en) * | 2017-11-30 | 2019-06-07 | 中国飞机强度研究所 | A kind of middle low strain dynamic rate dynamic compression properties method of engineering arrestor |
| CN110082505A (en) * | 2019-05-10 | 2019-08-02 | 东华理工大学 | A kind of assembled ground comprehensive test system |
| CN112697600A (en) * | 2020-12-09 | 2021-04-23 | 大连海事大学 | Rock creep test device and test method under high-temperature environment |
| CN113092254A (en) * | 2021-04-07 | 2021-07-09 | 中国矿业大学 | Auxiliary experiment device and method for testing compressive strength of soil sample under different side limit conditions |
| CN113848121A (en) * | 2021-09-30 | 2021-12-28 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109855961A (en) * | 2017-11-30 | 2019-06-07 | 中国飞机强度研究所 | A kind of middle low strain dynamic rate dynamic compression properties method of engineering arrestor |
| CN108195680A (en) * | 2018-02-22 | 2018-06-22 | 长安大学 | A kind of experimental rig for applying different constraints to native unit |
| CN109001095A (en) * | 2018-07-11 | 2018-12-14 | 西安石油大学 | Reservoir pore space Evolution Simulation experimental provision |
| CN109001095B (en) * | 2018-07-11 | 2020-10-09 | 西安石油大学 | Reservoir pore evolution simulation experiment device |
| CN108871935A (en) * | 2018-08-02 | 2018-11-23 | 中南大学 | A kind of pressure chamber for pile-soil interface shear property test device |
| CN109115608A (en) * | 2018-09-21 | 2019-01-01 | 三峡大学 | A kind of more size adjustable rock cleavage test boxs and method |
| CN109297823A (en) * | 2018-10-31 | 2019-02-01 | 山东科技大学 | A kind of experimental rig and test method for simulating mining rock Progressive failure |
| CN109520843A (en) * | 2019-01-17 | 2019-03-26 | 湖南科技大学 | A kind of device and application method measuring different depth rock crusher degree |
| CN109520843B (en) * | 2019-01-17 | 2024-03-08 | 湖南科技大学 | Device for measuring surrounding rock crushing degrees with different depths and use method |
| CN110082505A (en) * | 2019-05-10 | 2019-08-02 | 东华理工大学 | A kind of assembled ground comprehensive test system |
| CN110082505B (en) * | 2019-05-10 | 2022-01-14 | 东华理工大学 | Assembled ground combined test system |
| CN112697600A (en) * | 2020-12-09 | 2021-04-23 | 大连海事大学 | Rock creep test device and test method under high-temperature environment |
| CN113092254A (en) * | 2021-04-07 | 2021-07-09 | 中国矿业大学 | Auxiliary experiment device and method for testing compressive strength of soil sample under different side limit conditions |
| CN113848121A (en) * | 2021-09-30 | 2021-12-28 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
| CN113848121B (en) * | 2021-09-30 | 2022-04-01 | 中煤长江基础建设有限公司 | Test device and method for simulating bearing capacity of rock-socketed pile in rock stratum |
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