CN109870370A - Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil - Google Patents
Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil Download PDFInfo
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- CN109870370A CN109870370A CN201910165284.2A CN201910165284A CN109870370A CN 109870370 A CN109870370 A CN 109870370A CN 201910165284 A CN201910165284 A CN 201910165284A CN 109870370 A CN109870370 A CN 109870370A
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- sample
- push rod
- gear
- support platform
- soil
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- 239000011435 rock Substances 0.000 title claims abstract description 30
- 239000002689 soil Substances 0.000 title claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 45
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000011160 research Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 238000010008 shearing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
A kind of torsion of multifunctional in-situ Rock And Soil cuts Sample devices and includes support platform and be located at the servo motor of the support platform upper end, hydraulic jack, telescopic rod, push rod are equipped in the support platform lower end, the telescopic rod upper end passes through support platform and servo motor transmission axis connection, and the push rod upper end passes through support platform and connect with hydraulic jack；Gear A is fixed in telescopic rod lower end；Push rod is socketed on the sample sleeve by connector and sample sleeve connection, gear B, and gear B is meshed with fixed gear A.This torsional shear learns tester and not only controls the normal pressure that hydraulic jack is applied using force snesor, the normal tension that hydraulic jack is applied can also be controlled, servo motor cooperates with hydraulic jack, apply normal direction pressure (drawing) power and side twisting resistance to sample simultaneously, pressure (drawing) the torsional shear test for carrying out live sample, makes it possible to carry out mechanical property research to live sample.
Description
Technical field
The invention belongs to geotechnical engineering mechanical test instrument field, it is related to a kind of multifunctional in-situ Rock And Soil torsion and cuts sample dress
It sets.
Background technique
The shear strength parameter of Rock And Soil is the underlying parameter of deformation of geotechnical engineering stability analysis, and common acquisition methods are
Laboratory test and field test.Wherein, testing generally carry out at the scene is direct shear test, and what normal stress considered is pressure
Stress, namely what is carried out is compression-shear test.But there is only the stress state of compression shear, Er Qie for many Rock And Soils in engineering
There is the stress state drawn and cut in more situation, such as Slope shoulder position.It is previous studies have shown that tension-shear tests state and compression shear
The mechanical characteristic difference of Rock And Soil is obvious under stress state, therefore, it is necessary to consider the practical occurrence condition of engineering rock mass, carries out phase
Answer the test of stress state.
Torsion shear test is novel shearing test method, and the application of shear load, Ke Yibao are realized by applying twisting resistance
Card during shearing the section of shear it is constant, indoors test in apply it is more, but mainly loading method be vertical
Direction applies compression, and horizontal direction applies torsional shear load namely compression-shear test.But it is large-scale due to field environment complexity
Indoor torsion shear apparatus device and equipment are difficult to meet site requirement, it is difficult to realize the torsional shear test of field rock mass, and test
The original position of process Rock And Soil sample not can guarantee.
In order to preferably study the mechanical property under Rock And Soil complex stress condition, ginseng is provided for Rock And Soil quality evaluation
It examines.Therefore, emphasis of the present invention researches and develops a kind of torsion of multifunctional in-situ Rock And Soil and cuts Sample devices, realizes the original of live Rock And Soil sample
Position torsion shear test, including compression shear and tensile shear testing.
Summary of the invention
The present invention is directed to propose compression shear mechanical test can be carried out, a kind of multifunctional in-situ Rock And Soil for cutting mechanical test is drawn to turn round
Sample devices are cut, are operated conveniently, has broken the limitation of sample chamber interior mechanics test, has realized field sample scene torsional shear
The operability of test.
The present invention in order to solve the above problem used by technical solution be: sample dress is cut in a kind of torsion of multifunctional in-situ Rock And Soil
It sets including support platform and is located at the servo motor of the support platform upper end, hydraulic jack, in the support platform lower end
Equipped with telescopic rod, push rod, the telescopic rod upper end passes through support platform and servo motor transmission axis connection, and the push rod upper end is worn
Support platform is crossed to connect with hydraulic jack；
The fixed gear A in the telescopic rod lower end；
The push rod is socketed on the sample sleeve by connector and sample sleeve connection, gear B, gear B and fixation
Gear A is meshed.
Preferably, the connector is round iron post, disk；
The disk is placed on sample sleeve, and round iron post is arranged in disk upper surface and is in contact with push rod.
Preferably, the connector is circular ring-shaped nut A, circular ring-shaped nut B, annulus；
It is equipped with one or two circular hole A in the push rod bottom, is equipped with one or two circular hole B in sample sleeve upper end, one
Or two circular ring-shaped nut A are penetrated in one or two circular hole A, one or two circular ring-shaped nut B penetrates one or two
In a circular hole B, annulus upper end is equipped with circular ring-shaped nut A fixation hole, lower end is equipped with circular ring-shaped nut B fixation hole, on annulus
End cap is located at push rod lower end, lower end is set in sample sleeve upper end.
Preferably, the Sample devices further include force snesor, and force snesor connect pass with hydraulic jack, servo motor
System.Force snesor is normal direction pressure (drawing) power for controlling hydraulic jack and being applied, and the shaft band movable tooth of monitoring servo motor
Wheel rotation and apply side twisting resistance, thus obtain the shearing strength of sample.
Preferably, the sample sleeve surface has screw thread, using upper annular collar nut, lower annular collar nut by gear
B is fixed on sleeve.
A kind of multifunctional in-situ Rock And Soil torsion of the present invention is cut Sample devices and is had the advantage that
(1) a kind of multifunctional in-situ Rock And Soil torsion of the present invention cuts Sample devices using apparatus control, passes through A gear and tooth
B engagement is taken turns, realizes the shear strength test of sample；It is fixed, is prevented with collar nut up and down when gear B is fixed on sample sleeve
Only gear slides in rotary course；Sample sleeve is two semicolumn synthesis, is fixed into gear by collar nut
When sleeve, effectively sample sleeve can also be tightened on sample, the rotation of gear twists movement to drive sample；
This torsion shear test instrument ensure that the original position of sample, test can be from operability, and the validity that test carries out；
(2) Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion of the present invention can carry out compression shear mechanical test, draw shearing
Test is learned, compression shear mechanical test applies the pressure of normal direction by hydraulic jack, and drawing is cut mechanical test and applied by hydraulic jack
Addition to pulling force；
(3) a kind of multifunctional in-situ Rock And Soil torsion of the present invention cut Sample devices by field condition torsion shear test facilitation,
Simplify and standardize, test the use of middle sleeve, protect the integrality of sample during test, has convenient for torsion shear test
The crackle of sample is effectively analyzed afterwards；Reduce the test error of entire torsion shear test；This torsion shear test instrument is in whole operation
It is simple and convenient in the process, it is small to sample injury, the test period is shortened, it is high-efficient.
Detailed description of the invention
Sample devices structural schematic diagram is cut in a kind of multifunctional in-situ Rock And Soil torsion of Fig. 1.
Fig. 2 is that another structural schematic diagram of Sample devices is cut in a kind of torsion of multifunctional in-situ Rock And Soil.
Fig. 3 A, B gear are nested schematic diagram.
Fig. 4 sample sleeve schematic diagram.
Fig. 5 annulus schematic diagram.
In such as figure, controller 1, servo motor 3, hydraulic jack 4, support platform 5, protection cylinder B6, is protected force snesor 2
Casing A7, push rod 8, disk 10, telescopic rod 11, upper collar nut 12, gear A 13, gear B 14, sample sleeve 15, lower annular spiral shell
Female 16, annulus 17, circular hole A18, circular ring-shaped nut A19, circular hole B20, circular ring-shaped nut B21.
Specific embodiment
It elaborates below with reference to the accompanying drawings and in conjunction with the embodiments to the present invention:
As shown in figure 1, a kind of multifunctional in-situ Rock And Soil torsion cuts Sample devices and can carry out compression shear mechanical test, draw and cut mechanical test,
Sample devices are respectively force snesor 2, support platform 5, servo motor 3, hydraulic jack 4:
Controller 1 can control the operation of servo motor 3, hydraulic jack 4；The force snesor 2 is control 4 institute of hydraulic jack
Normal direction pressure (drawing) power of application, and monitoring servo motor 3 shaft drive A gear 13 rotation and apply side twisting resistance, from
And the side twisting resistance applied by servo motor 3, the shearing strength of sample is calculated；
It is located at servo motor 3, the hydraulic jack 4 of 5 upper end of support platform, is equipped in 5 lower end of support platform flexible
Bar 11, push rod 8；
It is equipped with telescopic rod 11, push rod 8 in 5 lower end of support platform, 11 upper end of telescopic rod passes through support platform 5 and servo
Motor 3 is driven axis connection, and 8 upper end of push rod passes through support platform 5 and connect with hydraulic jack 4；Under the telescopic rod 11
Hold fixed gear A 13；
The push rod 8 is connect by connector with sample sleeve 15, and gear B 14 is socketed on the sample sleeve 15, such as Fig. 3
In, gear B 14 is meshed with fixed gear A 13, the rotation of gear A 13 is driven by servo motor 3, to drive gear B 14
Bore it is dynamic；Gear B 14 is fixed on sleeve 15 using upper collar nut 12, lower collar nut 16, as shown in Figure 4, sample
There is screw thread on 15 surface of sleeve；Telescopic rod 11 and push rod 8 are located in protection cylinder A7, protection cylinder B6, and 15 surface of sample sleeve has
Screw thread；
Preferably, as shown in figure 1, the connector is round iron post 9, disk 10；
The disk 10 is placed on sample sleeve 15, and round iron post 9 is arranged in 10 upper surface of disk and is in contact with push rod 8.
Preferably, as in Fig. 2, the connector be circular ring-shaped nut A19, circular ring-shaped nut B21, annulus 17(such as
In Fig. 5)；
Two circular hole A18 are equipped in 8 bottom of push rod, are equipped with one or two circular hole B 20 in 15 upper end of sample sleeve,
Two circular ring-shaped nut A19 are penetrated in one or two circular hole A18, and one or two circular ring-shaped nut B21 penetrates one
Or in two circular hole B20,17 upper end of annulus is equipped with circular ring-shaped nut A19 fixation hole, lower end is consolidated equipped with circular ring-shaped nut B21
Determine hole, 17 upper end of annulus is set in 8 lower end of push rod, lower end is set in 15 upper end of sample sleeve.
The compression shear mechanical test be in hydraulic jack 4 on be fixedly connected with push rod 8, one end and 9 phase of round iron post of push rod 8
It supports, round iron post 9 is placed in 10 upper end of disk, and disk 10 is placed on sample sleeve 15；
It is that push rod 8 is fixedly connected in hydraulic jack 4 that mechanical test is cut in the drawing, and one end and the sample sleeve 15 of push rod 8 offset,
8 bottom of push rod is there are two circular hole A18, and there are two circular hole B20, two upper circular ring-shaped nut A19 difference at sample sleeve 15 top
It is by circular hole A18 that annulus 17 and push rod 8 is fixed；Two lower circular ring-shaped nut B21 pass through respectively circular hole B20 by push rod 8 with
Sleeve 15 is fixedly connected by annulus 17；
The course of work of the invention is as follows:
A kind of torsion of multifunctional in-situ Rock And Soil cuts Sample devices and carries out compression shear mechanical test:
Sample is filled, sample sleeve 15 is mounted on sample, is fixed on gear B by upper collar nut 12, lower collar nut 16
On sample sleeve, collar nut 12, lower collar nut 16 are tightened；Disk 10 is placed on sample sleeve 15, on disk 10
Place round iron post 9；
It preloads, starts servo motor 3, transfer telescopic rod 11, the gear A 13 on telescopic rod 11 is made to be meshed with gear B 14；It opens
Hydrodynamic pressure jack 4 transfers push rod 8, push rod 8 is made to offset with round iron post 9, and makes push rod 8, round iron post 9, disk 10 and sample
Center is in same axis；
Load, applies different normal direction pressure (drawing) power by controller, while being again started up servo motor and starting with hydraulic jack
Test, until after sample destroys；
Sampling, lays down normal direction pressure (drawings) power and lateral torsional shear, dismounting round iron post and disk, return collar nut 12, under
Collar nut 16 and gear B, rise telescopic rod take out sleeve, obtain torsion shear test sample.
A kind of torsion of multifunctional in-situ Rock And Soil, which is cut Sample devices and draw, cuts mechanical test:
Sample is filled, sample sleeve 15 is mounted on sample, it is by upper collar nut 12, lower collar nut 16 that gear B 14 is fixed
On sample sleeve 15, collar nut 12, lower collar nut 16 are tightened；Annulus 10 is placed on sample sleeve 15, starts liquid
Press jack, transfer push rod 8, make push rod 8 close to sample sleeve 15, two upper circular ring-shaped nut A19 pass through 8 bottom of push rod and
Circular hole at the top of sleeve, push rod and sleeve are fixed；
It preloads, starts servo motor 3, transfer telescopic rod 11, keep gear A on telescopic rod 11 and gear B mutually ratcheting；
Load, applies different normal direction pressure (drawing) power by controller 1, while being again started up servo motor and starting with hydraulic jack
Test, until after sample destroys；
Sampling, lays down normal direction pressure (drawings) power and lateral torsional shear, dismounting round iron post and disk, return collar nut 12, under
Collar nut 16 and gear B, rise telescopic rod take out sleeve, obtain torsion shear test sample.
Claims (5)
1. Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion, it is characterized in that: Sample devices include support platform (5) and set
Servo motor (3), hydraulic jack (4) in the support platform (5) upper end are equipped in the support platform (5) lower end and stretch
Contracting bar (11), push rod (8), telescopic rod (11) upper end pass through support platform (5) and servo motor (3) and are driven axis connection, institute
Push rod (8) upper end is stated to connect across support platform (5) with hydraulic jack (4)；
Telescopic rod (11) lower end is fixed gear A (13)；
The push rod (8) is connect by connector with sample sleeve (15), and gear B (14) is socketed in the sample sleeve (15)
On, gear B (14) is meshed with fixed gear A (13).
2. Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion according to claim 1, it is characterized in that: the connector
For round iron post (9), disk (10)；
The disk (10) is placed on sample sleeve (15), and round iron post (9) setting is in disk (10) upper surface and and push rod
(8) it is in contact.
3. Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion according to claim 1, it is characterized in that: the connector
For circular ring-shaped nut A(19), circular ring-shaped nut B(21), annulus (17)；
It is equipped with one or two circular hole A (18) in the push rod (8) bottom, is equipped with one or two in sample sleeve (15) upper end
Circular hole B (20), one or two circular ring-shaped nut A(19) it penetrates in one or two circular hole A (18), one or two circles
Shape collar nut B(21) it penetrates in one or two circular hole B (20), annulus (17) upper end is equipped with circular ring-shaped nut A(19) solid
Determine hole, lower end is equipped with circular ring-shaped nut B(21) fixation hole, annulus (17) upper end is set in push rod (8) lower end, lower end is set in
Sample sleeve (15) upper end.
4. Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion according to claim 1, it is characterized in that: the sample fills
Setting further includes force snesor (2), and force snesor (2) is connect with hydraulic jack (4), servo motor (3).
5. Sample devices are cut in a kind of multifunctional in-situ Rock And Soil torsion according to claim 1, it is characterized in that: the sample set
There is screw thread on cylinder (15) surface, and gear B (14) is fixed on set using upper annular collar nut (12), lower annular collar nut (16)
On cylinder (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165284.2A CN109870370A (en) | 2019-03-05 | 2019-03-05 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910165284.2A CN109870370A (en) | 2019-03-05 | 2019-03-05 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109870370A true CN109870370A (en) | 2019-06-11 |
Family
ID=66919840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910165284.2A Pending CN109870370A (en) | 2019-03-05 | 2019-03-05 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
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| Country | Link |
|---|---|
| CN (1) | CN109870370A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320113A (en) * | 2019-07-19 | 2019-10-11 | 三峡大学 | A kind of interface Tu Yan undisturbed sample torsion shear apparatus and method |
| CN113686648A (en) * | 2021-07-15 | 2021-11-23 | 长沙理工大学 | In-situ shearing instrument |
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| KR20110104162A (en) * | 2010-03-16 | 2011-09-22 | 한국전기연구원 | Fatigue testing machine for tension, compression and torsion |
| CN204101388U (en) * | 2014-07-12 | 2015-01-14 | 长沙理工大学 | A kind of asphalt torsional shear test device |
| CN104913984A (en) * | 2015-05-28 | 2015-09-16 | 福建工程学院 | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device |
| CN104990794A (en) * | 2015-07-09 | 2015-10-21 | 东北大学 | Tension-torsion testing machine and testing method thereof |
| CN106932264A (en) * | 2017-04-26 | 2017-07-07 | 济南科汇试验设备有限公司 | A kind of composite test device reversed in achievable tension and compression load process |
| CN108613884A (en) * | 2018-04-11 | 2018-10-02 | 浙江大学 | A kind of ring shear apparatus being contemplated that constant stiffness constant volume Chang Yingli |
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN209690088U (en) * | 2019-03-05 | 2019-11-26 | 三峡大学 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
-
2019
- 2019-03-05 CN CN201910165284.2A patent/CN109870370A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110104162A (en) * | 2010-03-16 | 2011-09-22 | 한국전기연구원 | Fatigue testing machine for tension, compression and torsion |
| CN204101388U (en) * | 2014-07-12 | 2015-01-14 | 长沙理工大学 | A kind of asphalt torsional shear test device |
| CN104913984A (en) * | 2015-05-28 | 2015-09-16 | 福建工程学院 | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device |
| CN104990794A (en) * | 2015-07-09 | 2015-10-21 | 东北大学 | Tension-torsion testing machine and testing method thereof |
| CN106932264A (en) * | 2017-04-26 | 2017-07-07 | 济南科汇试验设备有限公司 | A kind of composite test device reversed in achievable tension and compression load process |
| CN108931444A (en) * | 2018-04-10 | 2018-12-04 | 西安理工大学 | A kind of rock hollow cylinder scene torsion shear apparatus and test method |
| CN108613884A (en) * | 2018-04-11 | 2018-10-02 | 浙江大学 | A kind of ring shear apparatus being contemplated that constant stiffness constant volume Chang Yingli |
| CN209690088U (en) * | 2019-03-05 | 2019-11-26 | 三峡大学 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320113A (en) * | 2019-07-19 | 2019-10-11 | 三峡大学 | A kind of interface Tu Yan undisturbed sample torsion shear apparatus and method |
| CN110320113B (en) * | 2019-07-19 | 2021-08-31 | 三峡大学 | Soil-rock interface undisturbed sample torsional shear test device and method |
| CN113686648A (en) * | 2021-07-15 | 2021-11-23 | 长沙理工大学 | In-situ shearing instrument |
| CN113686648B (en) * | 2021-07-15 | 2024-04-05 | 长沙理工大学 | In-situ shearing instrument |
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