CN208347789U - A kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure - Google Patents
A kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure Download PDFInfo
- Publication number
- CN208347789U CN208347789U CN201820887314.1U CN201820887314U CN208347789U CN 208347789 U CN208347789 U CN 208347789U CN 201820887314 U CN201820887314 U CN 201820887314U CN 208347789 U CN208347789 U CN 208347789U
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- CN
- China
- Prior art keywords
- secondary liner
- preliminary bracing
- tunnel
- rubber spacer
- liner structure
- 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.)
- Expired - Fee Related
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- Lining And Supports For Tunnels (AREA)
Abstract
Pressure type composite lining structure, including preliminary bracing structure and secondary liner structure are allowed the utility model discloses a kind of more joint fissure breaking surrounding rocks tunnel；The preliminary bracing structure setting is on tunnel surrounding inner wall, and the secondary liner structure setting is in the early stage on the inside of supporting construction；Rubber spacer is equipped between the portion of side in the tunnel and the preliminary bracing structure and secondary liner structure at top.The utility model is equipped with rubber spacer in the early stage between supporting construction and secondary liner structure, reduce the influence vibrated to early-age concrete, protect early age secondary liner structure；It avoids secondary liner structure from cracking, and makes that secondary liner structure durability is good, reliability is high, insensitive to temperature change；It avoids and is directly contacted between preliminary bracing structure and secondary liner structure, pressure from surrounding rock, which squeezes rubber spacer, can also allow compressive strain, absorb portion of energy and protect supporting construction, the utility model also has structure simple, advantage easy for construction.
Description
Technical field
The utility model belongs to Tunnel Engineering technical field, more particularly to a kind of more joint fissure breaking surrounding rocks tunnel
Allow pressure type composite lining structure.
Background technique
The soil in China 70% is mountain area, and with the development of economy, tunnel becomes the head for overcoming elevation obstacle and impediment in plane
Scheme is selected, and the massif rock crusher in many areas is weak, rich groundwater, in tunnel excavation, pressure from surrounding rock is big, and explosion is applied
In the case where work and casting concrete crossing parallel construction, blasting vibration can be caused to the perturbed problem for closing on newly-laid concrete,
This proposes very high requirement to tunnel support construction.
For more joint fissure breaking surrounding rocks tunnel, pressure from surrounding rock is big, rich groundwater, and first branch surface is simultaneously rough, directly
Contact is easy to appear the phenomenon that stress is concentrated, and squeezes splash guard, two linings will lead to waterproof dash-board injury, lining crack, disturbance etc.
Phenomenon, blast working will lead to early-age concrete intensity, ultimate tensile strength and impervious with casting concrete crossing parallel construction
Property reduce, it is serious to also result in phenomena such as concrete directly destroys.
Summary of the invention
In order to solve the above-mentioned technical problem, it is simple to provide a kind of structure for the utility model, easy for construction and be able to solve
The extruding splash guard in existing more joint fissure breaking surrounding rocks tunnel, two linings will lead to waterproof dash-board injury, lining crack, disturbance etc.
More joint fissure breaking surrounding rocks tunnel of problem allows pressure type composite lining structure.
The technical solution adopted in the utility model is: a kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining
Structure, including preliminary bracing structure and secondary liner structure；The preliminary bracing structure setting is on tunnel surrounding inner wall, institute
The secondary liner structure setting stated is in the early stage on the inside of supporting construction；The portion of side in the tunnel and the preliminary bracing structure at top and
Rubber spacer is equipped between secondary liner structure.
Above-mentioned more joint fissure breaking surrounding rocks tunnel allows in pressure type composite lining structure, the rubber spacer surface
It is coated with polyurethane water-proof paint.
Above-mentioned more joint fissure breaking surrounding rocks tunnel allows in pressure type composite lining structure, the rubber spacer direction
The face of preliminary bracing structure is equipped with multiple drainage grooves, and drainage groove lower end is connected to gutter.
Above-mentioned more joint fissure breaking surrounding rocks tunnel allows in pressure type composite lining structure, inside the rubber spacer
Equipped with cavity, granule damper is equipped in cavity.
Compared with prior art, the utility model has the beneficial effects that
1) the utility model is equipped with rubber spacer in the early stage between supporting construction and secondary liner structure, reduces vibration pair
The influence of early-age concrete protects early age secondary liner structure；Secondary liner structure is avoided, and makes secondary lining knot
Structure durability is good, reliability is high, insensitive to temperature change；And can to avoid preliminary bracing structure and secondary liner structure it
Between directly contact, pressure from surrounding rock, which squeezes rubber spacer, can also allow compressive strain, absorb portion of energy and protect supporting construction；Rubber spacer
Multiple drainage grooves are equipped with towards the face of preliminary bracing structure, drainage groove lower end is connected to gutter, is accelerated draining and is made
With.
) the utility model is simple and reasonable, site operation is simple and convenient.
3) it is equipped with granule damper in rubber spacer, improves effectiveness in vibration suppression；The particle position of granule damper is non-
Often flexibly, it can be additional to the outside of civil structure, can also be embedded in structural elements, do not influenced structure use, original is tied
Structure changes very little, and particles used materials are cheap convenient；Prearrangement of deformation amount can not be had to well by allowing compressive strain to absorb portion of energy
Amount makes secondary liner structure uniform stressed avoid the occurrence of stress concentration, protects secondary liner structure.
Detailed description of the invention
Fig. 1 is the integral installation schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the rubber spacer of the utility model.
Fig. 3 is the sectional view of the rubber spacer of the utility model.
In figure: 1- preliminary bracing structure, 2- rubber spacer, 3- secondary liner structure, 4- drainage groove, the damping of 5- particle
Device.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, the utility model includes preliminary bracing structure 1 and secondary liner structure 3；The preliminary bracing knot
Structure 1 is arranged on tunnel surrounding inner wall, and the setting of secondary liner structure 3 is in the early stage on the inside of supporting construction；The tunnel
Portion of side and top preliminary bracing structure 1 and secondary liner structure 3 between be equipped with rubber spacer 2.
As shown in Fig. 2, the rubber spacer 2 is equipped with multiple drainage grooves 4, row towards the face of preliminary bracing structure 1
4 lower end of water groove is connected to gutter, accelerates drainage.As shown in figure 3, cavity is equipped with inside the rubber spacer 2,
It is equipped with granule damper 5 in cavity, improves effectiveness in vibration suppression.The particle position of granule damper 5 is very flexible, can be attached
It is added on the outside of civil structure, can also be embedded in structural elements, does not influence structure use, very little, institute are changed to original structure
It is cheap convenient to be drawn materials with particle.Granule damper 5 can not have to prearrangement of deformation amount well by allowing compressive strain to absorb portion of energy
Amount, makes 3 uniform stressed of secondary liner structure, avoids the occurrence of stress concentration, protects secondary liner structure.The rubber spacer 2
Surface be coated with polyurethane water-proof paint, enhance waterproof action.
When the utility model is constructed, the construction of preliminary bracing structure 1 is carried out first, after the completion of preliminary bracing structure 1 applies,
Carry out live vault sinking, perimeter convergence displacement monitoring；After tunnel surrounding rock displacement meets design and code requirement, prop up in the early stage
1 surface of the protection structure installation rubber spacer 2 for being built-in with granule damper 5 and being coated with polyurethane water-proof paint as shown in Figure 2, it
Installation template pours secondary liner structure 3 afterwards.
Claims (4)
1. a kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure, it is characterised in that: including preliminary bracing
Structure and secondary liner structure；The preliminary bracing structure setting is on tunnel surrounding inner wall, the secondary liner structure
Setting is in the early stage on the inside of supporting construction；Between the portion of side in the tunnel and the preliminary bracing structure and secondary liner structure at top
Equipped with rubber spacer.
2. more joint fissure breaking surrounding rocks tunnel according to claim 1 allows pressure type composite lining structure, feature exists
In: the rubber spacer surface is coated with polyurethane water-proof paint.
3. more joint fissure breaking surrounding rocks tunnel according to claim 1 or 2 allows pressure type composite lining structure, feature
Be: the rubber spacer is equipped with multiple drainage grooves, drainage groove lower end and draining towards the face of preliminary bracing structure
Ditch connection.
4. more joint fissure breaking surrounding rocks tunnel according to claim 1 or 2 allows pressure type composite lining structure, feature
It is: is equipped with cavity inside the rubber spacer, is equipped with granule damper in cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820887314.1U CN208347789U (en) | 2018-06-08 | 2018-06-08 | A kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820887314.1U CN208347789U (en) | 2018-06-08 | 2018-06-08 | A kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208347789U true CN208347789U (en) | 2019-01-08 |
Family
ID=64882956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820887314.1U Expired - Fee Related CN208347789U (en) | 2018-06-08 | 2018-06-08 | A kind of more joint fissure breaking surrounding rocks tunnel allows pressure type composite lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208347789U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653751A (en) * | 2019-01-09 | 2019-04-19 | 济南城建集团有限公司 | A kind of use wears city expressway method for tunnel construction under yielding rubber ledge |
| CN109958462A (en) * | 2019-04-03 | 2019-07-02 | 江苏金阳交通工程有限公司 | A kind of tunnel sound-proof wall |
-
2018
- 2018-06-08 CN CN201820887314.1U patent/CN208347789U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653751A (en) * | 2019-01-09 | 2019-04-19 | 济南城建集团有限公司 | A kind of use wears city expressway method for tunnel construction under yielding rubber ledge |
| CN109958462A (en) * | 2019-04-03 | 2019-07-02 | 江苏金阳交通工程有限公司 | A kind of tunnel sound-proof wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20210608 |