CN105403427A - 3D-printed tunnel model supporting structure, installation method and manufacturing method - Google Patents
3D-printed tunnel model supporting structure, installation method and manufacturing method Download PDFInfo
- Publication number
- CN105403427A CN105403427A CN201510980751.9A CN201510980751A CN105403427A CN 105403427 A CN105403427 A CN 105403427A CN 201510980751 A CN201510980751 A CN 201510980751A CN 105403427 A CN105403427 A CN 105403427A
- Authority
- CN
- China
- Prior art keywords
- supporting
- supporting construction
- pad
- tunnel
- liner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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 a 3D-printed tunnel model supporting structure, an installation method and a manufacturing method. The supporting structure comprises multiple successively-spliced supporting segments. Each of the supporting segments comprises multiple spliced inner liners. Each of the inner liners is a 3D printing piece. Support plates are arranged on the outer sides of the supporting segments. The beneficial effects are that a 3D printer is used for printing the inner liners, so supporting arrangement of a tunnel model test is greatly simplified in a convenient and quick manner; a tester can customize a supporting structure for the tunnel test model according actual conditions; after being used, the supporting structure model can be recycled for many times of tests, thereby achieving recycling; the whole supporting structure is quite simple and convenient to use; inner surrounding rock deformation of the tunnel model can be effectively avoided; and traditional time consuming and labor consuming work like spraying of concrete and adding of anchor rods are omitted.
Description
Technical field
The present invention relates to tunnel model test technology, be specifically related to tunnel model supporting construction that 3D prints and installation method and method for making.
Background technology
In Tunnel Engineering, the prototype of Practical Project and structure be generally size more greatly and comparatively complicated, its mechanical property and force-mechanism by directly studying structure and obtaining, and cannot must adopt model test usually.Under the prerequisite meeting certain principle of similitude, model test can reflect every data and the performance in tunnel more convenient, comprehensive, intuitively, exactly relative to on-the-spot test and mathematical model, to probing into underground works mechanism, and engineering is actual plays directive function.
At present, the supporting construction of tunnel model test is all generally gunning concrete, or adds entanglement, little anchor pole and carry out gunning concrete again.But this is not well positioned to meet the principle of similitude of model test, can follow-up test be had an impact.Further, due to the restriction of size and structure, consider the setting time of gunning concrete, tunnel model driving speed and distance all will control within the specific limits, when so just making test fee, effort, are not also well positioned to meet the effect of simulation supporting construction.
Summary of the invention
The object of the invention is the deficiency in order to overcome existing tunnel model test supporting construction, the tunnel model supporting construction that the 3D provided prints and installation method and method for making.
In order to reach above-mentioned purpose, the present invention adopts following technical scheme:
The tunnel model supporting construction that 3D prints, comprise some sections of supporting sections of splicing successively, every section of supporting section comprises the liner of several splicings, each liner is 3D printout, back up pad is provided with in the outside of supporting section, the liner printed by 3D is aided with back up pad as supporting construction, and the supporting that enormously simplify tunnel model test is arranged, more simple and convenient.
Further, the shape of described back up pad and the shape of described supporting section just as.
Further, described back up pad comprises multistage, and adjacent back up pad is fixed by chain connecting plate fastener.
Further, the shape of described supporting section is obtained by the true form passing ratio convergent-divergent in tunnel.
Further, the supporting section at the two ends of described supporting construction is fixed in the back up pad of end by compressing tablet.
Further, described back up pad is located between two adjacent supporting sections, and the inner side of supporting section is connected with back up pad by compressing tablet.
Further, the material printing described liner is poly-lactic acid material.
Further, described adjacent liner one is provided with boss, and another is provided with the groove coordinated with boss, by boss and groove fit, realizes the fixing of two liners.
The installation method of supporting construction, concrete steps are as follows:
1) some sections of liners are spliced successively, splice some sections of supporting sections;
2) multistage back up pad is located at the outside of supporting section, fixing adjacent back up pad, forms one section of supporting construction, adopts compressing tablet end back up pad and liner to be fixed the end of one section of supporting construction;
3) one section of supporting construction is placed in tunnel model, the inwall dug out of fitting;
4) continue to dig into tunnel, the back up pad in second segment supporting construction to be placed in tunnel and to splice;
5) some sections of liners are spliced successively in back up pad inside, liner and back up pad are fixed;
6) tunnel continue dig forward into, repeat step 4) to step 5);
7) last, end back up pad and end liner are fixed, completes complete supporting construction.
The manufacture method of supporting construction, concrete steps are as follows:
1) according to the ratio of similitude condition of satisfied test, actual tunnel model is contracted to desirability, determines the basic size of tunnel model supporting construction;
2) be simulation actual tunnel excavation situation and stability when ensureing tunnel model test excavation, liner is divided into multistage at tunnel bearing of trend, and width is depending on actual conditions;
3) 3D printer is adopted to print liner.
The invention has the beneficial effects as follows:
1) 3D printer is adopted to print supporting liner, the supporting that enormously simplify tunnel model test is arranged, more convenient, and experimenter can be made to be the customized supporting construction of tunnel test model according to actual conditions, and supporting construction model with after can reclaim and carry out test of many times, realize recycling.
2) whole supporting construction is comparatively simple and convenient, can effectively prevent surrouding rock deformation in tunnel model, eliminates traditional gunning concrete, adds the work of the bothersome efforts such as anchor pole.
Accompanying drawing explanation
Fig. 1 is structure structural map of the present invention.
Fig. 2 is structure front elevation of the present invention.
1-the first liner in figure; 2--second liner; 3--the 3rd liner; 4-the four liner; 5-the five liner; 6-the six liner; 7-end upper backup pad; 8-end lower supporting plate; 9-upper backup pad; 10-lower supporting plate; 11-end compressing tablet; 12-compressing tablet; 13-web joint.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.
As shown in Figure 1, tunnel test model supporting construction comprises some sections of supporting sections of splicing successively, every section of supporting section includes some sections of liners, particularly, it is 6 sections, i.e. the first liner 1, second liner 2, 3rd liner 3, 4th liner 4, 5th liner 5, 6th liner 6, end upper backup pad 7, end lower supporting plate 8, upper backup pad 9, lower supporting plate 10, end compressing tablet 11 and compressing tablet 12, chain connecting plate 13, 4th liner 4, 5th liner 5, 6th liner 6 has certain thrust, because this is a tunnel model, liner structure in actual tunnel that Here it is.
Wherein, inner lining structure part leaves boss and groove, an entirety can be spliced into, as the front elevation of Fig. 2 supporting construction.Inner liner portion is fixed on end upper backup pad 7 and end lower supporting plate 8 by end compressing tablet 11 by integrally-built stem and tail portion, and wherein two back up pads are then linked together in outside with hexagon socket head cap screw by chain connecting plate 13.Middle part inner liner portion is fixed by compressing tablet 12 and upper backup pad 9 and lower supporting plate 10, and upper backup pad 9 and lower supporting plate 10 part are linked together in inside with hexagon socket head cap screw by chain connecting plate 13 equally.
Inner lining structure part is all 3D printout.Consider that actual tests precision prescribed is not high and print cost issues, select printing precision and all moderate 3D printer MakerBotReplicatorZ18 of expense to print.PLA (PLA) is a kind of novel biodegradation material, use reproducible plant resources (as corn) the starch material that proposes make.Mechanical property and physical property good.PLA can with have at No add hott bed situation under print heavy parts model and corner can not tilt, there is lower shrinkage factor, even if also show good when printing the model of large-size.Meanwhile, PLA has lower melt strength, and printer model is more easily moulding.So, choose the printed material of PLA material as supporting construction model.
Back up pad is bracing members class, is stamping parts.First make suitable diel, then be put on pressing machine punch process is carried out to cold-rolled low carbon steel sheet material, obtain the steel bracing plate of respective shapes.End compressing tablet 11 and compressing tablet 12 are obtained Q235 sheet metal bending by pressing machine.
Below in conjunction with test, its installation method is described:
1, first, tunnel model outer by liner splicing together, upper backup pad 9 connects together with lower supporting plate 10 chain connecting plate 13, liner is fixed on upper backup pad 9 and lower supporting plate 10 by use compressing tablet 12.
2, placing assembling model in tunnel test model, putting in tunnel model, the inwall dug out of fitting.
3, dig forward into a segment distance in tunnel model, then put upper backup pad 9 and lower supporting plate 10 into tunnel respectively, in tunnel, usage chain fishplate bar 13 stitchs together.
4, again liner 1-6 is put in tunnel, is stitched together in tunnel.
5, use compressing tablet 12 to be pressed onto on steel bracing plate by the liner that front and back are stitched together for twice, and with bolt, compressing tablet is fixed.
6, tunnel continue to dig forward into, before repetition, step 3 is to step 5, until meet testing requirements.
7, last, with end upper backup pad 7, end lower supporting plate 8 splices fixing, adopts end compressing tablet 11 to be fixed by last liner, completes complete supporting construction.
The tunnel model supporting construction that 3D prints changes the supporting construction analogy method of conventional spray paint material, supporting construction is simulated more simple and convenient, can effectively prevent surrouding rock deformation in tunnel model.And can quick-detachment after using, recycling.
Method for designing is:
One, according to the ratio of similitude condition of satisfied test, actual tunnel model is contracted to desirability, determines the basic size of tunnel model supporting construction, if tunnel model supporting construction width, length, road surface are to spring of arch.Wherein, material when can print according to 3D, thickness and filling rate adjustment tunnel model supporting construction thickness;
Two, be the convenience ensureing transport and place to test tunnel, inner liner portion be divided into six parts, and leave boss and groove in contact site.Liner six part divides should follow rational principle, and visual actual conditions determine;
Three, be simulation actual tunnel excavation situation and stability when ensureing tunnel model test excavation, liner is divided into multistage at tunnel bearing of trend, and length is depending on actual conditions;
Four, consider stressing conditions and the globality of supporting construction model, head and the tail and middle part using the support frame of steel bracing plate as liner, steel bracing plate thickness and width can according to the stressed selections of actual tunnel.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
- The tunnel model supporting construction that 1.3D prints, is characterized in that, comprise some sections of supporting sections of splicing successively, every section of supporting section comprises the liner of several splicings, and each liner is 3D printout, is provided with back up pad in the outside of supporting section.
- 2. supporting construction as claimed in claim 1, is characterized in that, the shape of described back up pad and the shape of described supporting section just as.
- 3. supporting construction as claimed in claim 1 or 2, it is characterized in that, described back up pad comprises multistage, and adjacent back up pad is fixed by chain connecting plate fastener.
- 4. supporting construction as claimed in claim 1, it is characterized in that, the shape of described supporting section is obtained by the true form passing ratio convergent-divergent in tunnel.
- 5. the supporting construction as described in claim 1 or 2 or 4, is characterized in that, the supporting section at the two ends of described supporting construction is fixed in the back up pad of end by compressing tablet.
- 6. the supporting construction as described in claim 1 or 4, is characterized in that, described back up pad is located between two adjacent supporting sections, and the inner side of supporting section is connected with back up pad by compressing tablet.
- 7. supporting construction as claimed in claim 1 or 2, it is characterized in that, the material printing described liner is poly-lactic acid material.
- 8. supporting construction as claimed in claim 1, it is characterized in that, described adjacent liner one is provided with boss, and another is provided with the groove coordinated with boss.
- 9. the installation method of the supporting construction according to any one of claim 1-8, is characterized in that, concrete steps are as follows:1) some sections of liners are spliced successively, splice some sections of supporting sections;2) multistage back up pad is located at the outside of supporting section, fixing adjacent back up pad, forms one section of supporting construction, adopts compressing tablet end back up pad and liner to be fixed the end of one section of supporting construction;3) one section of supporting construction is placed in tunnel model, the inwall dug out of fitting;4) continue to dig into tunnel, the back up pad in second segment supporting construction to be placed in tunnel and to splice;5) some sections of liners are spliced successively in back up pad inside, liner and back up pad are fixed;6) tunnel continue dig forward into, repeat step 4) to step 5);7) last, end back up pad and end liner are fixed, completes complete supporting construction.
- 10. the manufacture method of the supporting construction according to any one of claim 1-8, is characterized in that, concrete steps are as follows:1) according to the ratio of similitude condition of satisfied test, actual tunnel model is contracted to desirability, determines the basic size of tunnel model supporting construction;2) be simulation actual tunnel excavation situation and stability when ensureing tunnel model test excavation, liner is divided into multistage at tunnel bearing of trend, and width is depending on actual conditions;3) 3D printer is adopted to print liner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980751.9A CN105403427B (en) | 2015-12-23 | 2015-12-23 | The tunnel model supporting construction and installation method and production method of 3D printing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980751.9A CN105403427B (en) | 2015-12-23 | 2015-12-23 | The tunnel model supporting construction and installation method and production method of 3D printing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403427A true CN105403427A (en) | 2016-03-16 |
| CN105403427B CN105403427B (en) | 2018-10-12 |
Family
ID=55469052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510980751.9A Active CN105403427B (en) | 2015-12-23 | 2015-12-23 | The tunnel model supporting construction and installation method and production method of 3D printing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403427B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113533001A (en) * | 2021-09-04 | 2021-10-22 | 山东科技大学 | Method for manufacturing artificial experimental sample imitating natural rock sample |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592033A (en) * | 2009-07-03 | 2009-12-02 | 北京工业大学 | Assembled plastic pipes assembly form and supporting method in the soil |
| US20130327134A1 (en) * | 2008-11-07 | 2013-12-12 | Textron Innovations Inc. | Liquid Based Ice Protection Test Systems And Methods |
| CN104196546A (en) * | 2014-08-06 | 2014-12-10 | 山东大学 | Treatment method for fault fracture zone collapse in tunnel construction process |
| CN105114105A (en) * | 2015-09-18 | 2015-12-02 | 南京联众建设工程技术有限公司 | Steel-concrete composite tunnel lining supporting structure and manufacturing and construction method thereof |
-
2015
- 2015-12-23 CN CN201510980751.9A patent/CN105403427B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130327134A1 (en) * | 2008-11-07 | 2013-12-12 | Textron Innovations Inc. | Liquid Based Ice Protection Test Systems And Methods |
| CN101592033A (en) * | 2009-07-03 | 2009-12-02 | 北京工业大学 | Assembled plastic pipes assembly form and supporting method in the soil |
| CN104196546A (en) * | 2014-08-06 | 2014-12-10 | 山东大学 | Treatment method for fault fracture zone collapse in tunnel construction process |
| CN105114105A (en) * | 2015-09-18 | 2015-12-02 | 南京联众建设工程技术有限公司 | Steel-concrete composite tunnel lining supporting structure and manufacturing and construction method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN113533001A (en) * | 2021-09-04 | 2021-10-22 | 山东科技大学 | Method for manufacturing artificial experimental sample imitating natural rock sample |
| CN113533001B (en) * | 2021-09-04 | 2023-09-26 | 山东科技大学 | Manufacturing method of artificial experiment sample imitating natural rock sample |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105403427B (en) | 2018-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104975621B (en) | A kind of many anchored end retaining wall indoor model test device and test method | |
| CN103278384B (en) | Testing device and measuring method for anchorage performance of coal and rock mass in coal mine tunnel | |
| CN105178609A (en) | High-altitude bulk construction method for steel-structure grid | |
| CN205246454U (en) | A three -dimensional experimental system for simulating tunnel country rock plastic range | |
| CN103499268A (en) | Space relative deformation measuring device for upper disc and lower disc of in-situ rock joint plane | |
| CN105403427A (en) | 3D-printed tunnel model supporting structure, installation method and manufacturing method | |
| CN105863734A (en) | Device for simulating and monitoring existing tunnel during excavation of double-track tunnel | |
| CN210667457U (en) | Shield tunnel incremental launching construction simulation device and system | |
| CN105951608A (en) | Pushing construction method for corrugated steel web prestressed concrete combination beam | |
| CN103983521A (en) | Anchoring performance testing device | |
| CN105089163A (en) | Lower-chord panel point fastening device of crossed truss string structure and fastening tensioning method | |
| CN103147572A (en) | Complete water-stopping screw rod and mounting method | |
| CN115391886B (en) | System and method for analyzing stress between segment rings of oversized-diameter shield tunnel structure | |
| CN203429623U (en) | Overwater pile foundation reinforcement cage structure | |
| CN207435837U (en) | Prefabricated assembled roadnet | |
| CN205940963U (en) | TBM inclined shaft shield constructs section of jurisdiction loading test device | |
| CN205172038U (en) | Interim stair | |
| CN209962568U (en) | Shield vertical shaft vertical jacking model test device | |
| CN106840915A (en) | A kind of beam test device and method of duct piece connector | |
| CN207373103U (en) | A kind of push rod of the freely adjustable length of Mine pit survey | |
| CN106089595A (en) | A kind of wind tower power transmission device | |
| CN210948725U (en) | Temporary support member for transverse channel of subway underground excavation tunnel | |
| CN204728374U (en) | A kind of many anchored end retaining wall indoor model test device | |
| CN203257320U (en) | Ladder for installing arm rest of dynamic compactor | |
| CN103031859B (en) | Formation resistance action characteristic simulation test part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |