CN109060551A - A kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading device - Google Patents
A kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading device Download PDFInfo
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- CN109060551A CN109060551A CN201810983520.7A CN201810983520A CN109060551A CN 109060551 A CN109060551 A CN 109060551A CN 201810983520 A CN201810983520 A CN 201810983520A CN 109060551 A CN109060551 A CN 109060551A
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- 238000011068 loading method Methods 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 239000002689 soil Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 244000144985 peep Species 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004088 simulation Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 5
- 239000012780 transparent material Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010998 test method 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
- G01N3/14—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by dead weight, e.g. pendulum; generated by springs tension
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- 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 present invention relates to a kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading devices, loading device includes counter-force bracket, one or more loading mechanism axially arranged along model pipe piece is provided on counter-force bracket, each loading mechanism includes multiple circumferentially spaced arrangements for carrying out the spring loads unit of radial loaded to corresponding model section of jurisdiction, each spring loads unit includes installation sleeve and the loading spring that is set in installation sleeve, pointer is provided on loading spring, the scale axially arranged along installation sleeve being used cooperatively with the pointer is provided in installation sleeve.The present invention realizes the simulation of section of jurisdiction ring circumferential direction soil body subgrade reaction, in addition to this, the stress and deformation by part overloading effect section of jurisdiction can be simulated, and can directly read the deflection of load and section of jurisdiction, makes that test is more convenient, ease for operation is strong while improving test accuracy.
Description
Technical field
The present invention relates to city underground, vcehicular tunnels etc. using the pipe-plate lining structure tunnel engineering neck of shield construction
Domain more particularly to one kind can carry out three-dimensional load-bearing model test equipment and its loading device to shield duct piece ring.
Background technique
In recent years, with the development of economy with the progress of technology, shield tunnel in city underground, vcehicular tunnel, across Jiang Hai
It is widely used in the fields such as tunnel.Shield tunnel segment lining structure is to be spliced into section of jurisdiction by duct piece connector
Ring, then single section of jurisdiction ring is connected by the tunnel main body that tubular structure is constituted by interannular connector.Section of jurisdiction ring is in the soil body
It is the main supporting construction of shield tunnel, structural mechanical property and deformation of the section of jurisdiction ring in the soil body in three-dimensional status under loading
The research of characteristic just seems particularly important.
At this stage, in the research of the transverse and longitudinal structural mechanical property and deformation characteristic of section of jurisdiction, commonly using model test
Method carries out.Such as Chinese patent CN202886178U discloses a kind of " load dress of shield duct piece doughnut model test
Set ", which includes the smooth torus for being set to model section of jurisdiction center, when test, one end difference of more ropes
Section of jurisdiction is connected, the other end passes through smooth torus and pulley, and counterweight is installed in the end of rope, realizes by superposition counterweight big to load
Small control, multiple ropes realize the circumferential stress of section of jurisdiction.Existing this loading method has the following problems, model section of jurisdiction
Deflection needs measure again by displacement meter, and the complex degree of structure of equipment is larger, and equipment cost is higher；Additionally by rope
What son applied section of jurisdiction is annular pulling force rather than circumferential pressure, this actual formation drag being subject in the earth formation with section of jurisdiction has greatly
Deviation, and background patents be only able to achieve to section of jurisdiction model apply evenly load and part overloading cannot be simulated to tunnel duct piece
Effect.
Summary of the invention
The purpose of the present invention is to provide a kind of shield duct piece ring three-dimensional load-bearing model test equipments, to solve the prior art
In the problem of need to causing device structure complicated by additional displacement meter and higher cost segment deformation；The purpose of the present invention
It also resides in and loading device used in one kind shield duct piece ring three-dimensional load-bearing model test equipment is provided, to solve the prior art
Effect of the part overloading to tunnel duct piece cannot be simulated.
In order to solve the above technical problems, the technical solution of loading device is as follows in the present invention:
A kind of loading device of shield duct piece ring three-dimensional load-bearing model test equipment, including counter-force bracket are arranged on counter-force bracket
The loading mechanism for having one or more axially to arrange along model pipe piece, each loading mechanism include multiple circumferentially spaced cloth
That sets is used to carry out the spring loads unit of radial loaded to corresponding model section of jurisdiction, and each spring loads unit includes installation sleeve
And it is set to the loading spring in installation sleeve, it is provided with pointer on loading spring, is provided in installation sleeve and the pointer
The scale axially arranged along installation sleeve being used cooperatively.
The installation sleeve is made of clear material, and the scale is set on the outer peripheral surface of the installation sleeve.
The bottom of loading spring is connected with soil pressure cell.
The top and bottom of loading spring are respectively fitted with the gasket for guiding, gasket and the installation in installation sleeve
For the cooperation of sleeve rotation stop to limit loading spring rotation, spring loads unit further includes the pushing tow spiral shell with gasket pushing tow cooperation
Bar, the pushing tow screw rod spinning is on the counter-force bracket.
The outer end of pushing tow screw rod externally protrudes out in the counter-force bracket and inputs for torque.
The technical solution of shield duct piece ring three-dimensional load-bearing model test equipment in the present invention are as follows:
A kind of shield duct piece ring three-dimensional load-bearing model test equipment, including section of jurisdiction fixing seat and loading device, loading device include
Counter-force bracket is provided with one or more loading mechanism axially arranged along model pipe piece on counter-force bracket, respectively loads machine
Structure includes multiple circumferentially spaced arrangements for carrying out the spring of radial pressure load to the outer peripheral surface of corresponding model section of jurisdiction
Loading unit, each spring loads unit include installation sleeve and the loading spring that is set in installation sleeve, on loading spring
It is provided with pointer, the scale axially arranged along installation sleeve being used cooperatively with the pointer is provided in installation sleeve.
The counter-force bracket is ring structure, and the outside that spring loads unit is located at model section of jurisdiction is circumferentially arranged, annular
Hollow out peep hole is equipped in the periphery of each spring loads unit on counter-force bracket.
Section of jurisdiction fixing seat includes the grip slipper gripped for the both ends to corresponding model tunnel.
The installation sleeve is made of clear material, and the scale is set on the outer peripheral surface of the installation sleeve.
The top and bottom of loading spring are respectively fitted with the gasket for guiding, gasket and the installation in installation sleeve
For the cooperation of sleeve rotation stop to limit loading spring rotation, spring loads unit further includes the pushing tow spiral shell with gasket pushing tow cooperation
Bar, the pushing tow screw rod spinning is on the counter-force bracket.
The invention has the benefit that transmitting radial loaded using loading spring in spring loads unit in the present invention
Power can be impacted when model section of jurisdiction is deformed to avoid to counter-force bracket, certainly most importantly, pointer cooperation
Scale can determine the deflection of spring, the as deflection of model section of jurisdiction load-bearing, so that loading spring also has displacement meter
It acts on, therefore the setting of displacement meter can be saved using this spring loads unit, simplify product structure, reduce equipment cost.
It further, can be by adjusting the decrement of loading spring or adding for the different coefficient of elasticity of replacement in the present invention
Spring is carried to realize the flexible control to model section of jurisdiction load, is realized by annular reaction frame combination spring loads unit to model
The three-dimensional space of section of jurisdiction loads, and this loading method more really simulates shield duct piece ring liner structure in Practical Project
Stress, and part overloading can be simulated to the effect of tunnel duct piece to keep the result of model test more accurate.
Detailed description of the invention
Fig. 1 is a kind of structural representation of one embodiment of shield duct piece ring three-dimensional load-bearing model test equipment in the present invention
Figure；
Fig. 2 is the cooperation schematic diagram of counter-force bracket in Fig. 1, spring loads unit and model section of jurisdiction；
Fig. 3 is the structural schematic diagram of spring loading unit in Fig. 1；
Fig. 4 is the bottom view of Fig. 3.
Specific embodiment
A kind of implementation of shield duct piece ring three-dimensional load-bearing model test equipment is for example shown in Fig. 1 ~ 4: including section of jurisdiction fixing seat
And loading device, section of jurisdiction fixing seat include the grip slipper 2 gripped for the both ends to corresponding model tunnel, model tunnel
Road is combined by multiple model sections of jurisdiction 1.Loading device includes the counter-force bracket 4 being fixed in the fixing seat of section of jurisdiction, and counter-force bracket 4 is ring
Shape structure is provided with multiple loading mechanisms axially arranged along model pipe piece on counter-force bracket, and each loading mechanism includes multiple
Circumferentially spaced arrangement for carrying out the spring loads unit 3 of radial loaded to corresponding model section of jurisdiction, in each on counter-force bracket 4
The periphery of spring loads unit is equipped with hollow out peep hole 16, that is to say, that this counter-force bracket is engraved structure, only in spring
Play reaction frame at loading unit, other place hollow outs are observed and measured to operating condition of test so as to whole process.Spring loads
Unit includes the installation sleeve 5 being set on counter-force bracket, loading spring 7 is provided in installation sleeve, installation sleeve 5 is by transparent
Material is made, and transparent material is organic glass in the present embodiment, and the two sides of installation sleeve are provided with along installation sleeve circumferentially
Scale 12, the pointer 10 for being used cooperatively with corresponding scale is provided on spring.It is led on the inner wall of installation sleeve along axial direction
It is equipped with gasket 8 and installation sheet 11 to movement, gasket and installation sheet are that high-strength aluminum alloy material is made, and gasket and installation sheet are equal
With installation sleeve by cooperating along axially extending 13 rotation stop of rotation stop groove of installation sleeve, it is provided with soil pressure cell 6 on installation sheet 11,
The inner end of the periphery face contact of soil pressure cell 6 and model section of jurisdiction 1 when test, installation sleeve 5 is equipped with soil pressure cell line outlet 14, leads
Line 15 passes through the connection that the soil pressure cell line outlet realizes soil pressure cell 6 and Acquisition Instrument (not shown).Spring loads unit
It further include the pushing tow screw rod 9 with the cooperation of 8 pushing tow of gasket, pushing tow screw rod spinning is on counter-force bracket, the outer end evagination of pushing tow screw rod
Torque input is used in counter-force bracket.
When test, pressed by rotary lifting screw rod to loading spring, power is transmitted to soil by installation sheet by loading spring
Pressure cell, the measured value of soil pressure cell are to act on the subgrade reaction of model pipe on piece；Rotary lifting screw rod pushes load bullet
Spring compression, reacts on model pipe on piece, can accurately change the external force of model section of jurisdiction, while realizing that hierarchical loading or part are super
The load of load；By the scale in pointer and installation sleeve, may be implemented without displacement meter can measurement model section of jurisdiction deformation
Amount, that is, reduce the investment of equipment, in turn simplify the complexity of acquisition system；The setting purpose of gasket can be to avoid stress collection
In appearance.
In other embodiments of the invention: can also be realized by replacing the loading spring of different coefficient of elasticity to mould
The flexible control of the load of type section of jurisdiction；Scale in installation sleeve can also be with only one；Installation sleeve can not also be by transparent
Material is made, and is provided with the long hole vertically extended in installation sleeve at this time, the pointer being arranged on loading spring from this
It is pierced by long hole, to realize the deflection for facilitating operator to observe loading spring；It can not also be by pushing tow screw rod come real
It now exerts a force to loading spring, exerts a force say by pneumatic cylinder to loading spring；According to the number for the model section of jurisdiction tested, add
The number of mounted mechanism can also carry out the selection of adaptability, for example, one, two or more；Spring adds in each loading mechanism
The number of carrier unit is also possible to three, four or other numbers.
The implementation of loading device is for example shown in Fig. 1 ~ 4: the specific structure of loading device and above-mentioned each section of jurisdiction model three-dimensional space
Between testing equipment loading device as described in the examples it is identical, this will not be detailed here.
Claims (10)
1. a kind of loading device of shield duct piece ring three-dimensional load-bearing model test equipment, it is characterised in that: including counter-force bracket, instead
One or more loading mechanism axially arranged along model pipe piece is provided on power bracket, each loading mechanism includes multiple
The spring loads unit for being used to carry out radial loaded to corresponding model section of jurisdiction of circumferentially spaced arrangement, each spring loads unit are equal
Including installation sleeve and the loading spring being set in installation sleeve, it is provided with pointer on loading spring, is arranged in installation sleeve
There is the scale axially arranged along installation sleeve being used cooperatively with the pointer.
2. loading device according to claim 1, it is characterised in that: the installation sleeve is made of clear material, described
Scale is set on the outer peripheral surface of the installation sleeve.
3. loading device according to claim 1, it is characterised in that: the bottom of loading spring is connected with soil pressure cell.
4. loading device described in any one according to claim 1 ~ 3, it is characterised in that: loading spring is upper in installation sleeve
Portion and bottom are respectively fitted with the gasket for guiding, and gasket and the installation sleeve rotation stop cooperate to limit loading spring and turn
Dynamic, spring loads unit further includes the pushing tow screw rod with gasket pushing tow cooperation, and the pushing tow screw rod spinning is in the counter-force
On bracket.
5. loading device according to claim 4, it is characterised in that: the outer end of pushing tow screw rod externally protrudes out in the counter-force bracket
It is inputted for torque.
6. a kind of shield duct piece ring three-dimensional load-bearing model test equipment, including section of jurisdiction fixing seat and loading device, it is characterised in that:
Loading device includes counter-force bracket, one or more load machine axially arranged along model pipe piece is provided on counter-force bracket
Structure, each loading mechanism include multiple circumferentially spaced arrangements for carrying out radial pressure to the outer peripheral surface of corresponding model section of jurisdiction
The spring loads unit of load, each spring loads unit include installation sleeve and the loading spring that is set in installation sleeve,
It is provided with pointer on loading spring, is provided in installation sleeve and axially being arranged along installation sleeve of being used cooperatively of the pointer
Scale.
7. shield duct piece ring three-dimensional load-bearing model test equipment according to claim 6, it is characterised in that: the counter-force branch
Frame is ring structure, and the outside that spring loads unit is located at model section of jurisdiction is circumferentially arranged, in each spring on annular counter-force bracket
The periphery of loading unit is equipped with hollow out peep hole.
8. shield duct piece ring three-dimensional load-bearing model test equipment according to claim 6, it is characterised in that: section of jurisdiction fixing seat
Including the grip slipper gripped for the both ends to corresponding model tunnel.
9. shield duct piece ring three-dimensional load-bearing model test equipment according to claim 6, it is characterised in that: the installation set
Cylinder is made of clear material, and the scale is set on the outer peripheral surface of the installation sleeve.
10. being existed according to shield duct piece ring three-dimensional load-bearing model test equipment, feature described in claim 6 ~ 9 any one
In: the top and bottom of loading spring are respectively fitted with the gasket for guiding, gasket and the installation sleeve in installation sleeve
To limit loading spring rotation, spring loads unit further includes the pushing tow screw rod with gasket pushing tow cooperation, institute for rotation stop cooperation
Pushing tow screw rod spinning is stated on the counter-force bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983520.7A CN109060551A (en) | 2018-08-27 | 2018-08-27 | A kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810983520.7A CN109060551A (en) | 2018-08-27 | 2018-08-27 | A kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109060551A true CN109060551A (en) | 2018-12-21 |
Family
ID=64756213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810983520.7A Withdrawn CN109060551A (en) | 2018-08-27 | 2018-08-27 | A kind of shield duct piece ring three-dimensional load-bearing model test equipment and its loading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109060551A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414847A (en) * | 2020-11-09 | 2021-02-26 | 华北科技学院 | Horizontal grading loading device for analog simulation experiment rack |
| CN114544490A (en) * | 2022-02-18 | 2022-05-27 | 福耀玻璃工业集团股份有限公司 | Simulation atress frock and ageing behavior detection device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB706627A (en) * | 1951-04-04 | 1954-03-31 | Nat Res Dev | Improvements in and relating to fatigue testing machines |
| GB1501083A (en) * | 1973-12-22 | 1978-02-15 | Parry R | Testing of soils and like materials |
| CN200993624Y (en) * | 2006-12-19 | 2007-12-19 | 广西大学 | Portable soil bearing rigidity measuring instrument |
| CN103033374A (en) * | 2011-09-29 | 2013-04-10 | 同济大学 | Test device of vertical structure model of shield tunnel |
| CN202886178U (en) * | 2012-10-09 | 2013-04-17 | 河海大学 | Loading device of shield segment ring model test |
| CN108333054A (en) * | 2018-04-26 | 2018-07-27 | 北京交通大学 | Tunnel threedimensional model bracket loading test platform and the test method observed for tunnel defect |
| CN108344637A (en) * | 2018-01-08 | 2018-07-31 | 同济大学 | Shield duct piece mechanical simulation test device |
| CN208805425U (en) * | 2018-08-27 | 2019-04-30 | 郑州大学 | Shield duct piece ring three-dimensional load-bearing model test equipment and its loading device |
-
2018
- 2018-08-27 CN CN201810983520.7A patent/CN109060551A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB706627A (en) * | 1951-04-04 | 1954-03-31 | Nat Res Dev | Improvements in and relating to fatigue testing machines |
| GB1501083A (en) * | 1973-12-22 | 1978-02-15 | Parry R | Testing of soils and like materials |
| CN200993624Y (en) * | 2006-12-19 | 2007-12-19 | 广西大学 | Portable soil bearing rigidity measuring instrument |
| CN103033374A (en) * | 2011-09-29 | 2013-04-10 | 同济大学 | Test device of vertical structure model of shield tunnel |
| CN202886178U (en) * | 2012-10-09 | 2013-04-17 | 河海大学 | Loading device of shield segment ring model test |
| CN108344637A (en) * | 2018-01-08 | 2018-07-31 | 同济大学 | Shield duct piece mechanical simulation test device |
| CN108333054A (en) * | 2018-04-26 | 2018-07-27 | 北京交通大学 | Tunnel threedimensional model bracket loading test platform and the test method observed for tunnel defect |
| CN208805425U (en) * | 2018-08-27 | 2019-04-30 | 郑州大学 | Shield duct piece ring three-dimensional load-bearing model test equipment and its loading device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414847A (en) * | 2020-11-09 | 2021-02-26 | 华北科技学院 | Horizontal grading loading device for analog simulation experiment rack |
| CN112414847B (en) * | 2020-11-09 | 2022-09-16 | 华北科技学院 | Horizontal grading loading device for analog simulation experiment rack |
| CN114544490A (en) * | 2022-02-18 | 2022-05-27 | 福耀玻璃工业集团股份有限公司 | Simulation atress frock and ageing behavior detection device |
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| CB02 | Change of applicant information |
Address after: 6 / F, NO.666 Gonghe Xin Road, Jing'an District, Shanghai 200040 Applicant after: CHINA RAILWAY 15TH BUREAU GROUP Co.,Ltd. Applicant after: URBAN RAIL TRANSIT ENGINEERING COMPANY LIMITED OF CHINA RAILWAY 15TH BUREAU Applicant after: Zhengzhou University Address before: 450001 No. 100 science Avenue, Henan, Zhengzhou Applicant before: Zhengzhou University Applicant before: CHINA RAILWAY 15TH BUREAU GROUP Co.,Ltd. Applicant before: URBAN RAIL TRANSIT ENGINEERING COMPANY LIMITED OF CHINA RAILWAY 15TH BUREAU |
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| CB02 | Change of applicant information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Shiyong Inventor after: Wei Yanqing Inventor after: Wang Yu Inventor after: Chai Wenbao Inventor after: Ma Penghui Inventor after: Li Mingyu Inventor after: Wang Song Inventor after: Sun Liguang Inventor after: Pang Lei Inventor after: Cui Xinlei Inventor after: Jin Junwei Inventor after: Zeng Li Inventor after: Ma Shiju Inventor before: Li Mingyu Inventor before: Wei Yanqing Inventor before: Wang Yu Inventor before: Chai Wenbao Inventor before: Ma Penghui Inventor before: Zhao Shiyong Inventor before: Wang Song Inventor before: Sun Liguang Inventor before: Pang Lei Inventor before: Cui Xinlei Inventor before: Jin Junwei Inventor before: Zeng Li Inventor before: Ma Shiju |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181221 |
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| WW01 | Invention patent application withdrawn after publication |