CN105403427B - The tunnel model supporting construction and installation method and production method of 3D printing - Google Patents
The tunnel model supporting construction and installation method and production method of 3D printing Download PDFInfo
- Publication number
- CN105403427B CN105403427B CN201510980751.9A CN201510980751A CN105403427B CN 105403427 B CN105403427 B CN 105403427B CN 201510980751 A CN201510980751 A CN 201510980751A CN 105403427 B CN105403427 B CN 105403427B
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- Prior art keywords
- supporting
- liner
- support plate
- tunnel
- supporting construction
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
Abstract
The invention discloses the tunnel model supporting construction and installation method and production method of 3D printing, supporting construction includes several sections of supporting sections spliced successively, every section of supporting section includes the liner of several splicings, and each liner is 3D printing part, and support plate is equipped in the outside of supporting section.The beneficial effects of the invention are as follows：Supporting liner is printed using 3D printer, enormously simplify the supporting arrangement of tunnel model test, it is more convenient, and can make experimenter according to actual conditions be the customized supporting construction of tunnel test model, and supporting construction model can recycle after and carry out test of many times, realize recycling；Entire supporting construction is relatively simple and conveniently, can effectively prevent surrouding rock deformation in tunnel model, eliminate the bothersome laborious work such as traditional gunning concrete, addition anchor pole.
Description
Technical field
The present invention relates to tunnel model test technologies, and in particular to the tunnel model supporting construction and installation method of 3D printing
And production method.
Background technology
In Tunnel Engineering, the prototype of Practical Project and structure is usually that size is larger and complex, mechanical property
It can not usually be obtained by directly studying structure with force-mechanism, and model test must be used.It is certain meeting
Under the premise of the principle of similitude, model test can be more convenient, comprehensive, intuitive, accurate relative to on-the-spot test and mathematical model
Ground reflects each item data and performance in tunnel, to probing into underground engineering mechanism and engineering is practical plays directive function.
Currently, the supporting construction of tunnel model test is typically all gunning concrete, or addition wire netting, small anchor pole are again
Carry out gunning concrete.However this is not well positioned to meet the principle of similitude of model test, can generate shadow to subsequent experiment
It rings.Also, due to the limitation of size and structure, consider the setting time of gunning concrete, tunnel model driving speed and distance
It will control in a certain range, when allowing for test fee in this way, laborious, not be well positioned to meet simulation supporting construction also
Effect.
Invention content
The purpose of the invention is to overcome the shortcomings of existing tunnel model test supporting construction, the tunnel of the 3D printing provided
Road model supporting construction and installation method and production method.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
The tunnel model supporting construction of 3D printing, including several sections of supporting sections spliced successively, if every section of supporting section includes
The liner of dry splicing, each liner is 3D printing part, is equipped with support plate in the outside of supporting section, passes through the liner of 3D printing
It is aided with support plate as supporting construction, enormously simplifies the supporting arrangement of tunnel model test, it is more simple and convenient.
Further, the shape of the shape of the support plate and the supporting section just as.
Further, the support plate includes multistage, and adjacent support plate is fixed by chain connecting plate with clamp device.
Further, the shape of the supporting section is obtained by the true form in tunnel by proportional zoom.
Further, the supporting section at the both ends of the supporting construction is fixed on by tabletting in the support plate of end.
Further, the support plate is located between two adjacent supporting sections, and the inside of supporting section passes through tabletting and support plate
Connection.
Further, the material for printing the liner is poly-lactic acid material.
Further, the adjacent liner one is equipped with boss, another is equipped with the groove coordinated with boss, by convex
Platform coordinates with groove, realizes the fixation of two liners.
The installation method of supporting construction, is as follows：
1) several sections of liners are spliced successively, splices several sections of supporting sections；
2) multistage support plate is located to the outside of supporting section, fixed adjacent support plate constitutes one section of supporting construction, by one
The end of section supporting construction is fixed end support plate with liner using tabletting；
3) one section of supporting construction is placed in tunnel model, is bonded the inner wall dug out；
4) continue to dig into tunnel, the support plate in second segment supporting construction is placed in tunnel and is spliced；
5) several sections of liners are spliced successively inside support plate, liner and support plate is fixed；
6) tunnel continuation is dug into forward, is repeated step 4) and is arrived step 5)；
7) finally, end support plate and end liner are fixed, complete complete supporting construction.
The manufacturing method of supporting construction, is as follows：
1) according to the likelihood ratio condition for meeting experiment, actual tunnel model is contracted to desirability, determines tunnel model
The basic size of supporting construction；
2) it is that simulation actual tunnel excavates situation and ensures stability when tunnel model test excavates, by liner in tunnel
Extending direction is divided into multistage, and width is depending on actual conditions；
3) 3D printer is used to print liner.
The beneficial effects of the invention are as follows：
1) it uses 3D printer to print supporting liner, enormously simplifies the supporting arrangement of tunnel model test, it is more convenient
Fast, and experimenter can be made according to actual conditions to be the customized supporting construction of tunnel test model, and supporting construction mould
Type can recycle after carries out test of many times, realizes recycling.
2) entire supporting construction is relatively simple and conveniently, can effectively prevent surrouding rock deformation in tunnel model, eliminate biography
The bothersome laborious work such as gunning concrete, the addition anchor pole of system.
Description of the drawings
Fig. 1 is the structure structural map of the present invention.
Fig. 2 is the structure front view of the present invention.
1-the first liner in figure；The second liners of 2--；3-- third liners；4-the four liner；5-the five liner；6-the
Six liners；7-end upper backup pads；8-end lower supporting plates；9-upper backup pads；10-lower supporting plates；11-end tablettings；
12-tablettings；13-connecting plates.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description.
As shown in Figure 1, tunnel test model supporting construction includes several sections of supporting sections spliced successively, every section of supporting Duan Jun
Be 6 sections specifically including several sections of liners, i.e. the first liner 1, the second liner 2, third liner 3, the 4th liner 4, in the 5th
Lining 5, the 6th liner 6, end upper backup pad 7, end lower supporting plate 8, upper backup pad 9, lower supporting plate 10, end tabletting 11 and pressure
Piece 12, chain connecting plate 13, the 4th liner 4, the 5th liner 5, the 6th liner 6 have certain bump, are because this is a tunnel
Model, here it is the liner structures in actual tunnel.
Wherein, there are boss and groove on inner lining structure part, can be spliced into an entirety, such as Fig. 2 supporting knots
The front view of structure.Inner liner portion is fixed to end upper backup pad by integrally-built stem and tail portion by end tabletting 11
7 and end lower supporting plate 8 on, two of which support plate is then linked together with hexagon socket head cap screw in outside by chain connecting plate 13.
Intermediate position inner liner portion is fixed by tabletting 12 and upper backup pad 9 and lower supporting plate 10, upper backup pad 9 and lower supporting plate 10
Divide and is linked together in inside with hexagon socket head cap screw again by chain connecting plate 13.
Inner lining structure part is all 3D printing part.In view of actual tests precision prescribed is not high and printing cost issues, choosing
Select all moderate 3D printer MakerBot ReplicatorZ18 printings of printing precision and expense.Polylactic acid (PLA) is a kind of
Novel biodegradation material, the starch raw material proposed (such as corn) using reproducible plant resources are made.Mechanical performance
And physical property is good.PLA Ke Yi in the case that No have heating bed printing heavy parts model and corner will not tilt, have compared with
Low shrinking percentage, performance is good when the model of printing large-size.Meanwhile PLA has lower melt strength, printing
Model is more easily moulding.So choosing printed material of the PLA material as supporting construction model.
Support plate is bracing members class, is stamping parts.Suitable diel is first made, then is put into low to cold rolling on forcing press
Carbon sheet carries out punch process, obtains the steel bracing plate of respective shapes.End tabletting 11 and tabletting 12 are then to pass through forcing press
Q235 sheet metal bendings are obtained.
Its installation method is illustrated with reference to experiment：
1, first, outside tunnel model by liner splicing together, upper backup pad 9 and the chain connecting plate 13 of lower supporting plate 10 connect
To together, liner is fixed on upper backup pad 9 and lower supporting plate 10 using tabletting 12.
2, model will have been assembled to place into tunnel test model, has been put into tunnel model, be bonded the inner wall dug out.
3, it digs into a distance forward in tunnel model, then puts upper backup pad 9 and lower supporting plate 10 into tunnel respectively,
It is spliced together using chain connecting plate 13 in tunnel.
4, liner 1-6 is put into tunnel again, is spliced together in tunnel.
5, the front and back liner being stitched together twice is pressed onto on steel bracing plate using tabletting 12, blending bolt consolidates tabletting
It is fixed.
6, tunnel continuation is dug into forward, and step 3 arrives step 5 before repeating, until meeting test requirements document.
7, last, with end upper backup pad 7, the splicing of end lower supporting plate 8 is fixed, using end tabletting 11 will be last in
Lining is fixed, and complete supporting construction is completed.
The tunnel model supporting construction of 3D printing changes the supporting construction analogy method of conventional spray paint material so that supporting
Structural simulation more simply and conveniently, can effectively prevent surrouding rock deformation in tunnel model.And after use can fast quick-detach, weight
It is multiple to utilize.
Design method is：
One, according to the likelihood ratio condition for meeting experiment, actual tunnel model is contracted to desirability, determines tunnel model
The basic size of supporting construction, such as tunnel model supporting construction width, length, road surface to spring of arch.Wherein, it can be beaten according to 3D
Material, thickness and filling rate when print adjust tunnel model supporting construction thickness；
Two, it is the convenience for ensureing transport and being placed to experiment tunnel, inner liner portion is divided into six parts, and in contact site
There are boss and groove.Six part of liner, which divides, should follow rational principle, and visual actual conditions determine；
Stability when three, excavating situation for simulation actual tunnel and ensure that tunnel model test excavates, by liner in tunnel
Road extending direction is divided into multistage, and length is depending on actual conditions；
Four, in view of the stressing conditions and globality of supporting construction model, steel bracing plate is made in head and the tail and intermediate position
For the support frame of liner, steel bracing plate thickness and width can be selected according to actual tunnel stress.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
- The tunnel model supporting construction of 1.3D printings, which is characterized in that the supporting section spliced successively including several sections, the supporting The shape of section is obtained by the true form in tunnel by proportional zoom, and every section of supporting section includes the liner of several splicings, each Liner is 3D printing part, and support plate is equipped in the outside of supporting section；The shape of the support plate is identical as the shape of supporting section；The support plate includes multistage, and adjacent support plate is fixed by chain connecting plate with clamp device；The support plate is located between two adjacent supporting sections, and the inside of supporting section is connect by tabletting with support plate；The supporting section at the both ends of the supporting construction is fixed on by tabletting in the support plate of end；Adjacent liner one is equipped with boss, another is equipped with the groove coordinated with boss.
- 2. supporting construction as described in claim 1, which is characterized in that the material for printing the liner is poly-lactic acid material.
- 3. the installation method of supporting construction as claimed in claim 1 or 2, which is characterized in that be as follows：1) several sections of liners are spliced successively, splices several sections of supporting sections；2) multistage support plate is located to the outside of supporting section, fixed adjacent support plate constitutes one section of supporting construction, by one section of branch The end of protection structure is fixed end support plate with liner using tabletting；3) one section of supporting construction is placed in tunnel model, is bonded the inner wall dug out；4) continue to dig into tunnel, the support plate in second segment supporting construction is placed in tunnel and is spliced；5) several sections of liners are spliced successively inside support plate, liner and support plate is fixed；6) tunnel continuation is dug into forward, is repeated step 4) and is arrived step 5)；7) finally, end support plate and end liner are fixed, complete complete supporting construction.
- 4. the manufacturing method of supporting construction as described in any one of claims 1-3, which is characterized in that be as follows：1) according to the likelihood ratio condition for meeting experiment, actual tunnel model is contracted to desirability, determines tunnel model supporting The basic size of structure；2) it is that simulation actual tunnel excavates situation and ensures stability when tunnel model test excavates, liner is extended in tunnel Direction is divided into multistage, and width is depending on actual conditions；3) 3D printer is used to print liner.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510980751.9A CN105403427B (en) | 2015-12-23 | 2015-12-23 | The tunnel model supporting construction and installation method and production method of 3D printing |
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| CN201510980751.9A CN105403427B (en) | 2015-12-23 | 2015-12-23 | The tunnel model supporting construction and installation method and production method of 3D printing |
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| Publication Number | Publication Date |
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| CN105403427A CN105403427A (en) | 2016-03-16 |
| CN105403427B true CN105403427B (en) | 2018-10-12 |
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| CN108447381A (en) * | 2017-07-04 | 2018-08-24 | 河南理工大学 | A method of printing analog simulation test model holder by 3D printer |
| CN113533001B (en) * | 2021-09-04 | 2023-09-26 | 山东科技大学 | Manufacturing method of artificial experiment sample imitating natural rock sample |
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| CN101592033B (en) * | 2009-07-03 | 2011-12-28 | 北京工业大学 | Assembly form and supporting method for in-soil assembled plastic pipes |
| CN104196546B (en) * | 2014-08-06 | 2016-04-06 | 山东大学 | A kind of constructing tunnel process interrupt layer zone of fracture Treatment for collapse method |
| CN105114105B (en) * | 2015-09-18 | 2016-06-29 | 南京联众建设工程技术有限公司 | Steel-concrete combined type tunnel-liner support structure and making thereof and construction method |
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