CN207194905U - A kind of tunnel model for shield model test - Google Patents
A kind of tunnel model for shield model test Download PDFInfo
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- CN207194905U CN207194905U CN201720424959.7U CN201720424959U CN207194905U CN 207194905 U CN207194905 U CN 207194905U CN 201720424959 U CN201720424959 U CN 201720424959U CN 207194905 U CN207194905 U CN 207194905U
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Abstract
The utility model discloses a kind of tunnel model for shield model test, the structure of the tunnel model is similar to the structure of prototype tunnel, including multiple longitudinally disposed pipe rings, two adjacent pipe rings use interannular bolt connection, each pipe ring is formed by connecting using multiple sections of jurisdiction, and ring bolt connection is used between adjacent two sections of jurisdiction.The utility model application theory of similarity, solve conventional tunnel model and offending problem is simulated to prototype tunnel, a variety of shield tunnel environment can be simulated, especially underground engineering accident is difficult to the shield tunnel environment of field observation and control, has widened research range of the model test to shield tunnel problem.The utility model can be with section of jurisdiction in precise restoration prototype tunnel and the stress form and working environment of bolt, tunnel model is set preferably to reflect related law, also make experiment the data obtained more accurate, reliable simultaneously, be advantageous to shield tunnel problem more in-depth study.
Description
Technical field
It the utility model is related to a kind of model test apparatus of underground engineering, and in particular to one kind is used for shield model test
Tunnel model.
Background technology
Into 21st century, with the development and the progress of science and technology of society, urban Underground pipeline traffic there has also been considerable
Development, wherein shield tunnel construction method because of its construction flexibly, cost economic and to surface structures and the small spy of traffic impact
Put and be widely used.At this stage, engineering evaluation and evaluation for shield-tunneling construction, mainly there are experience equation, finite element
Numerical simulation, model testing method.Wherein, model test is one of research very important method of shield tunnel.Particularly underground
Engineering accident is difficult to field observation and control, and effective model test is just particularly important.Dashed forward by certain simplification
Go out the influence of specific factor, model test can effective simulation Practical Project truth；Pass through accurately design and implementation
Experiment, the important reliable reference data corresponding to Practical Project can be obtained.This is related for research shield tunnel
Problem is significant.
The model test in shield tunnel direction is studied at this stage, and shield tunnel is carried out using complete homogeneous annulus more
Simulation.And each ring of shield tunnel is spliced by some sections of jurisdiction in Practical Project, therefore at this stage in experiment
Tunnel model in Practical Project with having bigger difference, it is impossible to fine simulation Practical Project environment, the reliability of its reference data
Also have a greatly reduced quality.Preferably to carry out model test, data reliability is improved, the tunnel model more to become more meticulous just becomes very
It is important.
The content of the invention
The utility model for solve technical problem present in known technology provide it is a kind of for shield model test
Tunnel model, the model can the more fine actual shield tunnel environment of simulation, applied to shield model test, can obtain
More reliable reference data.
The utility model is adopted the technical scheme that to solve technical problem present in known technology：One kind is used for shield
The tunnel model of structure model test, the structure of the tunnel model is similar to the structure of prototype tunnel, including multiple longitudinally disposed
Pipe ring, adjacent two pipe rings use interannular bolt connection, and each pipe ring is formed by connecting using multiple sections of jurisdiction, phase
Ring bolt connection is used between two adjacent sections of jurisdiction.
The interannular bolt is bent bolt, and the ring bolt is straight bolt, be provided with the section of jurisdiction with it is described straight
Installation hand hole corresponding to bolt.
The installation hand hole is arranged on the outer surface of the section of jurisdiction.
All sections of jurisdiction for forming each pipe ring are made up of multiple standard sections of jurisdiction and a section of jurisdiction of binding, described in adjacent two
The ring bolt connection is used between standard section of jurisdiction and between the standard section of jurisdiction and the section of jurisdiction of binding.
The utility model has the advantages and positive effects of：The utility model application theory of similarity, solves conventional tunnel
Road model simulates offending problem to prototype tunnel, can simulate a variety of shield tunnel environment, especially underground engineering accident
The shield tunnel environment of field observation and control is difficult to, has widened research range of the model test to shield tunnel problem.
The utility model can make tunnel model more preferable with section of jurisdiction in precise restoration prototype tunnel and the stress form and working environment of bolt
Ground reflects related law, while also makes experiment the data obtained more accurate, reliable, is advantageous to more deep to shield tunnel problem
Research.
Brief description of the drawings
Fig. 1 is one of structural representation of the present utility model；
Fig. 2 is the two of structural representation of the present utility model；
Fig. 3 is pipe ring structural representation of the present utility model；
Fig. 4 is the tunnel segment structure schematic diagram of the present utility model that binds；
Fig. 5-1 is standard section of jurisdiction of the present utility model outside structure diagram；
Fig. 5-2 is standard section of jurisdiction inside structure schematic diagram of the present utility model；
Fig. 6 is section of jurisdiction attachment structure schematic diagram in ring of the present utility model；
Fig. 6-1 is Fig. 6 auspicious figure in A portions；
Fig. 7 is interannular section of jurisdiction of the present utility model attachment structure schematic diagram.
In figure：1st, bind section of jurisdiction；2nd, standard section of jurisdiction；3rd, interannular bolt；4th, ring bolt；5th, installation hand hole；6th, ring spiral shell
Keyhole；7th, interannular bolt hole；8th, nut；9th, aluminium cap；10th, fastener.
Embodiment
For invention, features and effects of the present utility model can be further appreciated that, following examples are hereby enumerated, and coordinate
Accompanying drawing describes in detail as follows：
Refer to accompanying drawing, a kind of tunnel model for shield model test, the structure and prototype tunnel of the tunnel model
Structure it is similar, including multiple longitudinally disposed pipe rings, adjacent two pipe rings are connected using interannular bolt 3, each
The pipe ring is formed by connecting using multiple sections of jurisdiction, is connected between adjacent two sections of jurisdiction using ring bolt 4.
In the present embodiment, the interannular bolt 3 is bent bolt, and the ring bolt 4 is straight bolt, in the section of jurisdiction
It is provided with installation hand hole 5 corresponding with the directly bolt.Straight bolt is used in the connection of section of jurisdiction ring, using curved in interannular connection
Bent bolt, it is possible to reduce the quantity slotted in section of jurisdiction, make the splicing of the domain more convenient with loading.In the present embodiment, in order to
Facilitate the installation of ring bolt 4, in the case of constant in the bolt hole position of ring bolt 4, the installation hand hole 5 is arranged on institute
State on the outer surface of section of jurisdiction.In the present embodiment, all sections of jurisdiction for forming each pipe ring can be by multiple standard sections of jurisdiction 2 and one
Section of jurisdiction 1 of binding forms, between adjacent two standard sections of jurisdiction 2 and between the standard section of jurisdiction 2 and the section of jurisdiction 1 of binding
Connected using the ring bolt 4；Formed each pipe ring all sections of jurisdiction can also by being all made up of multiple standard sections of jurisdiction 2,
Connected between two adjacent standard sections of jurisdiction 2 using the ring bolt 4.In the present embodiment, prototype tunnel section of jurisdiction connects
The water-proof strip at the place of connecing is not considered with rebate and installed with simplifying.
Application example：
First, the similarity relation of section of jurisdiction and section of jurisdiction connection in similarity analysis, including model test is carried out.Its mesarcs tunnel
Parametric variable of the road compared with tunnel model is in static relays mainly includes：Physical dimension, material property, stress and deformation parameter
And external force.By the theory, the similarity relation of section of jurisdiction and connecting bolt and prototype tunnel in tunnel model is can obtain, so as to enter
One step obtains relevant parameter, to make section of jurisdiction and connecting bolt.
In this application example, the likelihood ratio is used as 20, so that the part of some more details in prototype tunnel exists
It is difficult in tunnel model.Therefore, using the reliability for not influenceing test data as principle, it is adjusted using following methods：
One) to make the convenient installation in practical operation of the ring bolt between ring section of jurisdiction, in the feelings that bolt hole position is constant
Under condition, the position of installation hand hole 5 is by moving to the section of jurisdiction outer surface of tunnel model inside the section of jurisdiction of prototype tunnel.
Two) to make the connection between pipe ring more convenient, straight bolt is used in the section of jurisdiction ring connection in same pipe ring, together
When, longitudinally connected between pipe ring middle uses bent bolt, it is possible to reduce the quantity slotted on section of jurisdiction.In prototype tunnel, ring
Between longitudinally connected connected with ring in ring generally use bent bolt.
Three) water-proof strip in section of jurisdiction junction is not considered with rebate in tunnel model is installed with simplifying.
The making of tunnel model：
One) section of jurisdiction makes：
First, the intensity and size of concrete pipe sheet are strengthened according to the C50 commonly used in China's subway tunnel, tunnel external diameter is
6200mm, section of jurisdiction thickness 350mm, longitudinally wide 1200mm, it is 20 based on the likelihood ratio, selects material of the PP pipes for tunnel model,
Determine tunnel model external diameter 310m, section of jurisdiction thickness 17.5mm, ring width 60mm.On the basis of complete PP pipes, first, incited somebody to action by crosscutting
PP pipes are cut into single complete circle according to section of jurisdiction width.Then, according to prototype tunnel section of jurisdiction corresponding to angle of circumference, pass through rip cutting
Single pipe ring is cut into some sections of jurisdiction.Section of jurisdiction is polished smooth again to meet design requirement as far as possible.Finally, according to prototype tunnel
The quantity of installation hand hole and bolt hole drills ring bolt hole 6 and interannular bolt hole 7, cutting with distributing position on section of jurisdiction in road
It is used for installation bolt to form installation hand hole 5.
Two) bolt makes：
According in prototype tunnel frequently with M30 bolts intensity, based on the likelihood ratio, select aluminum steel as connecting bolt.
Bolt length according to tunnel model it needs to be determined that.
Ring bolt：In this application example, using a diameter of 2mm aluminum steel.First, aluminum steel is switched to setting length,
Length can strictly be controlled by termination of polishing.Then, a nut 8 is respectively set at both ends.
Interannular bolt：Diameter 1.6mm, long 33mm.First, aluminium cap 9 is fixed in bolt one end, fastener is installed in the other end
10.In tunnel model assembly, it is necessary to apply pretightning force set in advance on interannular bolt 3, pretightning force can pass through dynamometry
Meter is accurately controlled, and then, is fixed using fixture 10.Fastener can ensure the bolt fixation by application pretightning force without producing
Raw sliding, i.e., the situation of pretightning force off-load will not occur.
Three) tunnel model is assembled：
After section of jurisdiction completes with connecting bolt, it can be subjected to through seam assembling or mistake according to the structure shown in Fig. 1 and Fig. 2
Seam is assembled.
Although preferred embodiment of the present utility model is described above in conjunction with accompanying drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under enlightenment of the present utility model
In the case of scope, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (2)
1. a kind of tunnel model for shield model test, it is characterised in that the structure of the tunnel model and prototype tunnel
Structure is similar, including multiple longitudinally disposed pipe rings, and adjacent two pipe rings use interannular bolt connection, each described
Pipe ring is formed by connecting using multiple sections of jurisdiction, and ring bolt connection is used between adjacent two sections of jurisdiction；
The interannular bolt is bent bolt, and the ring bolt is straight bolt, is provided with and the straight bolt on the section of jurisdiction
Corresponding installation hand hole；
The installation hand hole is arranged on the outer surface of the section of jurisdiction.
2. the tunnel model according to claim 1 for shield model test, it is characterised in that form each pipe ring
All sections of jurisdiction are made up of multiple standard sections of jurisdiction and a section of jurisdiction of binding, between adjacent two standard sections of jurisdiction and the mark
The ring bolt connection is used between quasi- section of jurisdiction and the section of jurisdiction of binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424959.7U CN207194905U (en) | 2017-04-21 | 2017-04-21 | A kind of tunnel model for shield model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720424959.7U CN207194905U (en) | 2017-04-21 | 2017-04-21 | A kind of tunnel model for shield model test |
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| Publication Number | Publication Date |
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| CN207194905U true CN207194905U (en) | 2018-04-06 |
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| CN201720424959.7U Active CN207194905U (en) | 2017-04-21 | 2017-04-21 | A kind of tunnel model for shield model test |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571328A (en) * | 2018-06-29 | 2018-09-25 | 西南交通大学 | A kind of stratum interface segment shield tunnel segment lining structure and design method |
| CN108709534A (en) * | 2018-06-27 | 2018-10-26 | 中国地质大学（武汉） | Shield tunnel construction stress deformation indoor model test device and its installation method |
| CN109118930A (en) * | 2018-07-20 | 2019-01-01 | 同济大学 | A kind of shield tunnel pin-connected panel tunnel segment structure model and designing and manufacturing method |
| CN109459311A (en) * | 2018-12-19 | 2019-03-12 | 中国地质大学（武汉） | A kind of experimental provision for simulating pipe ring stress deformation in tunnel under different stress conditions |
| CN109493710A (en) * | 2018-12-21 | 2019-03-19 | 同济大学 | The shield tunnel liner design methods and model of the circumferential assembled performance of analog |
| CN109949690A (en) * | 2019-03-28 | 2019-06-28 | 广州市市政工程设计研究总院有限公司 | A kind of shield vertical shaft vertically jacks model test apparatus and method |
| CN112857848A (en) * | 2021-01-13 | 2021-05-28 | 中国建设基础设施有限公司 | Shield tunnel model test device and method capable of adjusting and controlling bolt prestress |
| CN113916655A (en) * | 2021-09-28 | 2022-01-11 | 腾达建设集团股份有限公司 | Shield tunnel longitudinal prestress reinforcement performance test device and test method |
| CN114407174A (en) * | 2021-12-27 | 2022-04-29 | 浙大城市学院 | Tunnel segment reduced scale test model with cracks and manufacturing method thereof |
| CN114526087A (en) * | 2022-01-25 | 2022-05-24 | 西南交通大学 | Segment lining structure model for researching shield tunnel segment floating |
| CN115389239A (en) * | 2022-08-24 | 2022-11-25 | 深圳大学 | Bolt shield tunnel model capable of automatically controlling node force for model test and assembling method thereof |
| WO2023168841A1 (en) * | 2022-03-08 | 2023-09-14 | 浙大城市学院 | Test device and method for researching impact of external load on soil arching effect of shield tunnel |
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- 2017-04-21 CN CN201720424959.7U patent/CN207194905U/en active Active
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709534A (en) * | 2018-06-27 | 2018-10-26 | 中国地质大学（武汉） | Shield tunnel construction stress deformation indoor model test device and its installation method |
| CN108709534B (en) * | 2018-06-27 | 2023-08-04 | 中国地质大学（武汉） | Shield tunnel structure stress deformation indoor model test device and installation method thereof |
| CN108571328A (en) * | 2018-06-29 | 2018-09-25 | 西南交通大学 | A kind of stratum interface segment shield tunnel segment lining structure and design method |
| CN108571328B (en) * | 2018-06-29 | 2023-08-04 | 西南交通大学 | Stratum juncture shield tunnel segment lining structure and design method |
| CN109118930A (en) * | 2018-07-20 | 2019-01-01 | 同济大学 | A kind of shield tunnel pin-connected panel tunnel segment structure model and designing and manufacturing method |
| CN109118930B (en) * | 2018-07-20 | 2020-10-02 | 同济大学 | Shield tunnel split mounting type segment structure model and design and manufacturing method |
| CN109459311A (en) * | 2018-12-19 | 2019-03-12 | 中国地质大学（武汉） | A kind of experimental provision for simulating pipe ring stress deformation in tunnel under different stress conditions |
| CN109459311B (en) * | 2018-12-19 | 2024-02-27 | 中国地质大学（武汉） | Experimental device for tunnel pipe ring atress warp under simulation different atress conditions |
| CN109493710A (en) * | 2018-12-21 | 2019-03-19 | 同济大学 | The shield tunnel liner design methods and model of the circumferential assembled performance of analog |
| CN109949690A (en) * | 2019-03-28 | 2019-06-28 | 广州市市政工程设计研究总院有限公司 | A kind of shield vertical shaft vertically jacks model test apparatus and method |
| CN109949690B (en) * | 2019-03-28 | 2024-05-07 | 广州市市政工程设计研究总院有限公司 | Vertical jacking model test device and method for shield vertical shaft |
| CN112857848B (en) * | 2021-01-13 | 2023-03-03 | 中国建设基础设施有限公司 | Shield tunnel model test device and method capable of adjusting and controlling bolt prestress |
| CN112857848A (en) * | 2021-01-13 | 2021-05-28 | 中国建设基础设施有限公司 | Shield tunnel model test device and method capable of adjusting and controlling bolt prestress |
| CN113916655A (en) * | 2021-09-28 | 2022-01-11 | 腾达建设集团股份有限公司 | Shield tunnel longitudinal prestress reinforcement performance test device and test method |
| CN113916655B (en) * | 2021-09-28 | 2024-06-11 | 上海腾达创科工程技术咨询有限责任公司 | Device and method for testing longitudinal prestress reinforcement performance of shield tunnel |
| CN114407174A (en) * | 2021-12-27 | 2022-04-29 | 浙大城市学院 | Tunnel segment reduced scale test model with cracks and manufacturing method thereof |
| CN114526087A (en) * | 2022-01-25 | 2022-05-24 | 西南交通大学 | Segment lining structure model for researching shield tunnel segment floating |
| WO2023168841A1 (en) * | 2022-03-08 | 2023-09-14 | 浙大城市学院 | Test device and method for researching impact of external load on soil arching effect of shield tunnel |
| CN115389239A (en) * | 2022-08-24 | 2022-11-25 | 深圳大学 | Bolt shield tunnel model capable of automatically controlling node force for model test and assembling method thereof |
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| GR01 | Patent grant | ||
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| CP02 | Change in the address of a patent holder |
Address after: 300350 Haijing garden, Haihe Education Park, Jinnan, Tianjin, 135, Tianjin University. Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92, Tianjin University Patentee before: Tianjin University |