CN202837002U - Testing device for tunnel construction process simulation - Google Patents
Testing device for tunnel construction process simulation Download PDFInfo
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- CN202837002U CN202837002U CN 201220431074 CN201220431074U CN202837002U CN 202837002 U CN202837002 U CN 202837002U CN 201220431074 CN201220431074 CN 201220431074 CN 201220431074 U CN201220431074 U CN 201220431074U CN 202837002 U CN202837002 U CN 202837002U
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- process simulation
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- solid wood
- organic glass
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Abstract
Provided is a testing device for tunnel construction process simulation. The testing device comprises a solid wood model and a model case used for filling soil. The periphery of the solid wood model is provided with synthetic glass. Gaps between the solid wood model and the synthetic glass are internally provided with gypsum layers. The solid wood model and the synthetic glass are connected through an iron sheet at a transverse plane to form an assembly. The iron sheet is provided with a draw ring used for drawing out the solid wood model. The assembly is positioned at the center of an internal cavity of the model case. The testing device is convenient to operate and has excellent accuracy.
Description
Technical field
The utility model relates to a kind of tunnel model test device, especially a kind of constructing tunnel process simulation test unit.
Background technology
At present, in the known tunnel model test, the mode of the actual excavation of simulation all is to remove draw excavator body with instrument by the certain geometrical boundary that designs with artificial mode, while digging the soil body is discharged, but this mode often causes caving in of the peripheral soil body of excavation, causes excavating the border and can not reach pre-set geometrical boundary, after finally often causing supporting to apply, certain space is arranged between supporting and the soil body, make the discontinuity of supporting, it is unreliable that test result becomes.Supporting was buried underground on the time, and the application time of the model test supporting that has is to treat that the soil body applies after all having dug, and some model test is directly that the supporting pre-plugged is good before excavation, and the theory of the supporting while digging in these methods and the Practical Project does not meet.On the other hand, because operational reason, substantially ignored the effect of preliminary bracing in the existing model test, directly added secondary supporting, the New Austrian Tunneling Method principle and the Tunnel Design thought that adopt in this and the Practical Project are disagreed.These disadvantages can cause the inaccuracy of experimental data and shortage scientific.
Summary of the invention
In order to overcome the relatively poor deficiency of troublesome poeration, accuracy of existing tunnel model test mode, the utility model provides a kind of easy to operate, constructing tunnel process simulation test unit that accuracy is good.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of constructing tunnel process simulation test unit, described test unit comprises solid wooden model and in order to fill the model casing of the soil body, the periphery of described solid wooden model arranges organic glass, be provided with gypsic horizon in the space between described solid wooden model and the described organic glass, be connected to form assembly at the above solid wooden model of end face and described organic glass by iron sheet, be provided with the draw ring that goes out in order to described solid wood die drawing on the described iron sheet, described assembly is positioned at the middle part of described model casing inner chamber.
Further, top cover is installed at the top of described model casing, and described top cover is provided with air inlet/outlet, and the inner chamber top of described model casing is provided with the air pressure capsule, and described air pressure capsule is provided with the turnover tracheae, and described turnover tracheae passes described air inlet/outlet.
The beneficial effects of the utility model are mainly manifested in: the effective engineering of simulation tunnel construction is the stressed and Change in surrounding rocks of supporting in the more realistic engineering of tunnel model test.From but model test more meet scientific and have operability.
Description of drawings
Fig. 1 is the longitudinal profile structural map of constructing tunnel process simulation test.
Fig. 2 is the process of the test longitudinal diagram of constructing tunnel process simulation test unit.
Fig. 3 is the end view of constructing tunnel process simulation test unit.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1～Fig. 3, a kind of constructing tunnel process simulation test unit, described test unit comprises solid wooden model 6 and the model casing 5 in order to fill the soil body, the periphery of described solid wooden model 6 arranges organic glass 7, be provided with gypsic horizon 8 in the space between described solid wooden model 6 and the described organic glass 7, be connected to form assembly with described organic glass 7 by iron sheet 9 at the above solid wooden model 6 of end face, be provided with the draw ring 10 that goes out in order to described solid wood die drawing on the described iron sheet 9, described assembly is positioned at the middle part of described model casing 5 inner chambers.
Further, top cover 1 is installed at the top of described model casing 5, and described top cover 1 is provided with air inlet/outlet 3, and the inner chamber top of described model casing is provided with air pressure capsule 4, and described air pressure capsule 4 is provided with turnover tracheae 2, and described turnover tracheae 2 passes described air inlet/outlet 3.
In the present embodiment, constructing tunnel process simulation test method, its process is: in advance solid wooden model 6 is connected the middle setting space of leaving with organic glass 7 usefulness iron sheets 9 before testing beginning, perfusion gypsum 8 in the described space is provided with a draw ring 10 on the connection iron sheet 9.Sidewall is coated lubricating oil around model casing 5 first, in order to eliminate the rubbing action of body between model casing of banketing, reduces boundary effect.Then fill the tunnel model below soil body 12 and carry out compacting, the solid wooden model 6 of when beginning is placed in the position as shown in FIG., making after the compacting and the assembly of organic glass 7.Coat lubricant and plastic sheeting at assembly and the soil body 12 coupling parts.And then compacting tunnel model side and the top soil body 2.Then spur draw ring 10, the assembly that makes is deviate from model casing 5, and 8 in the gypsum in the assembly space breaks away from assembly and contact with the soil body 12, is used for the process that simulation tunnel excavates and initial support applies.Then push secondary supporting simulation material 11, simulate the process that secondary supporting applies.
In the present embodiment, place air pressure capsule 4 at the top soil body and add upper top cover 1, turnover tracheae 2, on the described top cover 1 air inlet/outlet 3 is set, carry out first pressurized air during the experiment beginning, thereby carry out the quasiprimitive stress field of the surrounding rock of loading mould by the air pressure capsule.
In the present embodiment, wooden model is transferred to backward with gypsic horizon and is applied basic synchronization, can make surrounding soil according to the border excavation of design, gypsic horizon be the preliminary bracing layer can with the country rock uniform contact.Well having solved the time that supporting applies in the present model test does not meet reality, and because manually drawing to dig causes the border inhomogeneous, and make supporting apply difficulty, the process of applying does not meet reality, supporting applies inhomogeneous difficulty, can make model test more accurate, more reflects actual conditions.
Claims (2)
1. constructing tunnel process simulation test unit, it is characterized in that: described test unit comprises solid wooden model and in order to fill the model casing of the soil body, the periphery of described solid wooden model arranges organic glass, be provided with gypsic horizon in the space between described solid wooden model and the described organic glass, be connected to form assembly at the above solid wooden model of end face and described organic glass by iron sheet, be provided with the draw ring that goes out in order to described solid wood die drawing on the described iron sheet, described assembly is positioned at the middle part of described model casing inner chamber.
2. constructing tunnel process simulation test unit as claimed in claim 1, it is characterized in that: top cover is installed at the top of described model casing, described top cover is provided with air inlet/outlet, the inner chamber top of described model casing is provided with the air pressure capsule, described air pressure capsule is provided with the turnover tracheae, and described turnover tracheae passes described air inlet/outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431074 CN202837002U (en) | 2012-08-28 | 2012-08-28 | Testing device for tunnel construction process simulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220431074 CN202837002U (en) | 2012-08-28 | 2012-08-28 | Testing device for tunnel construction process simulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202837002U true CN202837002U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220431074 Expired - Fee Related CN202837002U (en) | 2012-08-28 | 2012-08-28 | Testing device for tunnel construction process simulation |
Country Status (1)
| Country | Link |
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| CN (1) | CN202837002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000068A (en) * | 2012-08-28 | 2013-03-27 | 浙江工业大学 | Tunnel construction process simulating test method |
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2012
- 2012-08-28 CN CN 201220431074 patent/CN202837002U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000068A (en) * | 2012-08-28 | 2013-03-27 | 浙江工业大学 | Tunnel construction process simulating test method |
| CN103000068B (en) * | 2012-08-28 | 2014-11-12 | 浙江工业大学 | Tunnel construction process simulating test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |