CN106948835A - A kind of tunnel model preparation method for shield model test - Google Patents
A kind of tunnel model preparation method for shield model test Download PDFInfo
- Publication number
- CN106948835A CN106948835A CN201710266085.1A CN201710266085A CN106948835A CN 106948835 A CN106948835 A CN 106948835A CN 201710266085 A CN201710266085 A CN 201710266085A CN 106948835 A CN106948835 A CN 106948835A
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- jurisdiction
- bolt
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- tunnel
- ring
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- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 12
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000004088 simulation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel model method for shield model test, using following steps：One) quantity, physical dimension and the material for the pipe ring quantity for forming tunnel model, the ring bolt of section of jurisdiction quantity, physical dimension and material for forming all pipe rings and the connection section of jurisdiction and interannular bolt are determined using the theory of similarity；Two) section of jurisdiction, the ring bolt and the interannular bolt are made；Three) section of jurisdiction is connected into by multiple pipe rings using the ring bolt；Four) all pipe rings are connected into by tunnel model using the interannular bolt.The present invention 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.
Description
Technical field
The present invention relates to a kind of preparation method of underground engineering model test device, and in particular to one kind is used for shield model
The tunnel model preparation method of experiment.
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 the spy small to surface structures and traffic impact
Put and be widely used.At this stage, engineering evaluation and evaluation for shield-tunneling construction mainly have 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.It is prominent 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, can obtain the important reliable reference data corresponding to Practical Project.This is related for research shield tunnel
Problem is significant.
The model test in research shield tunnel direction, is carried out using complete homogeneous annulus to shield tunnel more at this stage
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 become more meticulous just becomes very
It is important.
The content of the invention
The present invention provides a kind of tunnel for shield model test to solve technical problem present in known technology
Model production method, adopt this method making tunnel model can the more fine actual shield tunnel environment of simulation, be applied to
Shield model test, can obtain more reliable reference data.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：One kind is used for shield mould
The tunnel model method of type experiment, using following steps：One) the pipe ring number for forming tunnel model is determined using the theory of similarity
Amount, the ring bolt of section of jurisdiction quantity, physical dimension and material for forming all pipe rings and the connection section of jurisdiction and
Quantity, physical dimension and the material of interannular bolt；Two) section of jurisdiction, the ring bolt and the interannular bolt are made；Three)
The section of jurisdiction is connected into by multiple pipe rings using the ring bolt；Four) all pipe rings are connected using the interannular bolt
It is connected into tunnel model.
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
The corresponding installation hand hole of 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 present invention has the advantages and positive effects of：The present invention application theory of similarity, solves conventional tunnel model pair
Prototype tunnel simulates offending problem, can simulate a variety of shield tunnel environment, 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 present invention can
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 rule
Rule, while also making experiment the data obtained more accurate, reliable, is conducive to shield tunnel problem more in-depth study.
Brief description of the drawings
Fig. 1 is one of structural representation of the application present invention；
Fig. 2 is the two of the structural representation of the application present invention；
Fig. 3 is the pipe ring structural representation of the application present invention；
Fig. 4 is the tunnel segment structure schematic diagram that binds of the application present invention；
Fig. 5-1 is the standard section of jurisdiction outboard structure schematic diagram of the application present invention；
Fig. 5-2 is the standard section of jurisdiction inside structure schematic diagram of the application present invention；
Fig. 6 is section of jurisdiction attachment structure schematic diagram in the ring of the application present invention；
Fig. 6-1 is Fig. 6 auspicious figure in A portions；
Fig. 7 is the interannular section of jurisdiction attachment structure schematic diagram of the application present invention.
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 the content of the invention, feature and effect of the present invention can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing
Describe in detail as follows：
Refer to accompanying drawing, a kind of tunnel model method for shield model test, using following steps：One) phase is used
Like the theoretical pipe ring quantity, the section of jurisdiction quantity for forming all pipe rings, physical dimension determined for forming tunnel model
With quantity, physical dimension and the material of the ring bolt 4 and interannular bolt 3 of material and the connection section of jurisdiction；Two) make described
Section of jurisdiction, the ring bolt 4 and the interannular bolt 3；Three) section of jurisdiction is connected into by multiple pipes using the ring bolt 4
Ring；Four) all pipe rings are connected into by tunnel model using the interannular bolt 3.
The tunnel model made using the above method is similar to the structure of prototype tunnel, including multiple longitudinally disposed pipes
Ring, two adjacent pipe rings are connected using interannular bolt 3, and each pipe ring is formed by connecting using multiple sections of jurisdiction, adjacent
Two sections of jurisdiction between connected 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 straight 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, makes the splicing of the domain more facilitate with loading.In the present embodiment, in order to
Facilitate the installation of ring bolt 4, it is constant in the bolt hole position of ring bolt 4 in the case of, 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 is constituted, between two adjacent 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；Forming all sections of jurisdiction of each pipe ring can also be made up of by all 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 to simplify installation with rebate.
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
Road mainly includes with tunnel model in the parametric variable that static relays are compared：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 for 20, so that the part of some of prototype tunnel more details exists
It is difficult in tunnel model.Therefore, using do not influence test data reliability as principle, be adjusted using following methods：
One) to make, the ring bolt between ring section of jurisdiction is convenient in practical operation to be installed, 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 facilitate, straight bolt is used in the section of jurisdiction ring connection in same pipe ring, together
When, the longitudinally connected middle use bent bolt between pipe ring, it is possible to reduce the quantity slotted on section of jurisdiction.In prototype tunnel, ring
Between in longitudinally connected and ring ring connection generally use bent bolt.
Three) water-proof strip in section of jurisdiction junction is not considered with rebate in tunnel model to simplify installation.
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, are 20 based on the likelihood ratio, and selection PP pipes are the material of 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 the angle of circumference corresponding to prototype tunnel section of jurisdiction, rip cutting is passed through
Single pipe ring is cut into some sections of jurisdiction.Again section of jurisdiction is polished smooth 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, selection aluminum steel is used as connecting bolt.
Bolt length is determined according to the need for tunnel model.
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 two 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.When tunnel model is assembled, it is necessary to apply pretightning force set in advance on interannular bolt 3, pretightning force can pass through dynamometry
Meter is accurately controlled, then, is fixed using fixture 10.Fastener can ensure the bolt fixation by application pretightning force without producing
Raw sliding, i.e., will not occur the situation of pretightning force off-load.
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 the preferred embodiments of the present invention are described above in conjunction with accompanying drawing, the invention is not limited in upper
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff is under the enlightenment of the present invention, in the case where not departing from present inventive concept and scope of the claimed protection, also
Many forms can be made, these are belonged within protection scope of the present invention.
Claims (4)
1. a kind of tunnel model preparation method for shield model test, it is characterised in that use following steps：
One) using the theory of similarity determine for form tunnel model pipe ring quantity, the section of jurisdiction for forming all pipe rings
Quantity, physical dimension and the material of the ring bolt and interannular bolt of quantity, physical dimension and material and the connection section of jurisdiction；
Two) section of jurisdiction, the ring bolt and the interannular bolt are made；
Three) section of jurisdiction is connected into by multiple pipe rings using the ring bolt；
Four) all pipe rings are connected into by tunnel model using the interannular bolt.
2. the tunnel model preparation method according to claim 1 for shield model test, it is characterised in that the ring
Between bolt be bent bolt, the ring bolt is straight bolt, and install corresponding with the straight bolt is provided with the section of jurisdiction
Hand hole.
3. the tunnel model preparation method according to claim 1 for shield model test, it is characterised in that the peace
Dress hand hole is arranged on the outer surface of the section of jurisdiction.
4. the tunnel model preparation method according to claim 1 for shield model test, it is characterised in that form every
All sections of jurisdiction of individual pipe ring are made up of multiple standard sections of jurisdiction and a section of jurisdiction of binding, between two adjacent standard sections of jurisdiction with
And the ring bolt connection is used between the standard section of jurisdiction and the section of jurisdiction of binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266085.1A CN106948835A (en) | 2017-04-21 | 2017-04-21 | A kind of tunnel model preparation method for shield model test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710266085.1A CN106948835A (en) | 2017-04-21 | 2017-04-21 | A kind of tunnel model preparation method for shield model test |
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| Publication Number | Publication Date |
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| CN106948835A true CN106948835A (en) | 2017-07-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756927A (en) * | 2018-07-05 | 2018-11-06 | 中国铁建重工集团有限公司 | A kind of development machine steel arch-shelf installation system |
| 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 |
| CN112324467A (en) * | 2020-12-08 | 2021-02-05 | 中铁第四勘察设计院集团有限公司 | Model of shield tunnel cast-in-place internal structure and test manufacturing method thereof |
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| JPH0829297A (en) * | 1994-07-12 | 1996-02-02 | Nishimatsu Constr Co Ltd | Method and apparatus for test of shield excavation model |
| CN101299008A (en) * | 2008-06-13 | 2008-11-05 | 同济大学 | Trial model capable of simulating shield tunnel pipe slice joint and manufacturing method thereof |
| CN103277115A (en) * | 2013-05-24 | 2013-09-04 | 西南交通大学 | Segment and segment ring used for indoor tunneling test of shield tunneling machine model |
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| CN105426619A (en) * | 2015-11-29 | 2016-03-23 | 北京市勘察设计研究院有限公司 | Analysis method for determining longitudinal bending rigidity of shield tunnel |
| CN105548504A (en) * | 2016-01-29 | 2016-05-04 | 天津大学 | Three-dimensional model tunnel test device for simulating tunnel excavation and compensation grouting process |
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2017
- 2017-04-21 CN CN201710266085.1A patent/CN106948835A/en active Pending
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| JPH0829297A (en) * | 1994-07-12 | 1996-02-02 | Nishimatsu Constr Co Ltd | Method and apparatus for test of shield excavation model |
| CN101299008A (en) * | 2008-06-13 | 2008-11-05 | 同济大学 | Trial model capable of simulating shield tunnel pipe slice joint and manufacturing method thereof |
| CN103277115A (en) * | 2013-05-24 | 2013-09-04 | 西南交通大学 | Segment and segment ring used for indoor tunneling test of shield tunneling machine model |
| CN103953349A (en) * | 2014-04-24 | 2014-07-30 | 西南交通大学 | Test method for tunnel model with duct piece connectors with rigidity in controllable changes |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756927A (en) * | 2018-07-05 | 2018-11-06 | 中国铁建重工集团有限公司 | A kind of development machine steel arch-shelf installation system |
| CN108756927B (en) * | 2018-07-05 | 2024-01-19 | 中国铁建重工集团股份有限公司 | Steel arch installing system of heading machine |
| 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 |
| CN112324467A (en) * | 2020-12-08 | 2021-02-05 | 中铁第四勘察设计院集团有限公司 | Model of shield tunnel cast-in-place internal structure and test manufacturing method thereof |
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Application publication date: 20170714 |