CN208473893U - A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs - Google Patents
A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs Download PDFInfo
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- CN208473893U CN208473893U CN201820768951.7U CN201820768951U CN208473893U CN 208473893 U CN208473893 U CN 208473893U CN 201820768951 U CN201820768951 U CN 201820768951U CN 208473893 U CN208473893 U CN 208473893U
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- blind pipe
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Abstract
A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs, and to ensure that drainage system is unimpeded, prevents lining cutting from occurring water pressure behind, guarantees the safety of liner structure.Including circumferential blind pipe, longitudinal blind pipe, non-woven fabrics and the splash guard being set between preliminary bracing structure and secondary liner structure, wherein splash guard leans on country rock side close to secondary liner structure, circumferential blind pipe, longitudinal blind pipe are close to preliminary bracing structure, longitudinal blind pipe is set to abutment wall foot and lower than longitudinal construction joint, and is connected with lateral sulcus of the short abutment wall of secondary liner structure by side of driving a vehicle is set to.Drainable waterproofing plate is set within the scope of certain altitude above and below longitudinal construction joint, the drainable waterproofing plate outer plate surface and non-woven fabrics close to, the inner plate surface with groove-like structure is then with preliminary bracing structure close to the lower edges that groove-like structure is connected to drainable waterproofing plate form vertical drainage channel thereon.
Description
Technical field
The utility model technology category railway tunnel, vcehicular tunnel, municipal tunnel engineering field, in particular to one kind can be kept
The tunnel-liner guarded drainage of longitudinal blind pipe drainage performance constructs.
Background technique
Currently, Tunnel Engineering is to reduce lining cutting behind water pressure, built mostly according to the waterproof principles of " based on arranging ",
Longitudinal blind pipe, circumferential blind pipe, non-woven fabrics and splash guard are set between supporting construction and secondary liner structure in the early stage, to reach row
The purpose of secondary liner structure behind underground water out.But in recent years, the longitudinal blind pipe of discovery part tunnel appearance, circumferential direction are blind successively
Phenomena such as pipe is not discharged, lining cutting pucking, cracking, the water for adding ejectment after drain hole is larger, and analysis reason is lining cutting draining system
There is blocking, impeded drainage in system, cannot effective ejectment underground water.
When current mining method construction tunnel, preliminary bracing structure applies from top to bottom, secondary liner structure first apply inverted arch/
Bottom plate (including short abutment wall) applies arch wall again.Preliminary bracing structure is sequentially arranged longitudinal blind pipe, short abutment wall and centainly takes after applying
Circumferential blind pipe, non-woven fabrics and the splash guard in length range are connect, inverted arch or bottom plate and short abutment wall is then applied, finally applies arch wall
Part.Underground water within the scope of arch wall will enter the drainage system of Tunnel Design, it is necessary to pass through the circumferential direction at longitudinal construction joint
Blind pipe and non-woven fabrics, the discharge capacity at longitudinal construction joint become the weak link of whole system.Pressure from surrounding rock acts on lower initial stage
Biggish deformation occurs for supporting construction, constantly squeezes, causes between the two between preliminary bracing structure and secondary liner structure
Splash guard and non-woven fabrics dense extrusion weaken the ability for even losing water guide, cannot be effectively by the underground water ejectment of arch wall part
To longitudinal blind pipe, or circumferential blind pipe is squeezed at longitudinal construction joint, cannot effectively by the underground water ejectment in pipe to lateral sulcus,
Cause lining cutting drainage system to fail, threatens liner structure safety.
Utility model content
The technical problem to be solved by the utility model is to provide one kind, and the tunnel of longitudinal blind pipe drainage performance can be kept to serve as a contrast
Guarded drainage construction is built, to ensure that drainage system is unimpeded, prevents lining cutting from occurring water pressure behind, guarantees the safety of liner structure.
It is as follows that the utility model solves technical solution used by its technical problem:
The utility model one kind can keep the tunnel-liner guarded drainage of longitudinal blind pipe drainage performance to construct, including be set to just
Circumferential blind pipe between phase supporting construction and secondary liner structure, longitudinal blind pipe, non-woven fabrics and splash guard, wherein splash guard close to
Secondary liner structure leans on country rock side, circumferential blind pipe, longitudinal blind pipe close to preliminary bracing structure, longitudinal blind pipe be set to abutment wall foot and
It is connected lower than longitudinal construction joint, and with lateral sulcus of the short abutment wall of secondary liner structure by side of driving a vehicle is set to, it is characterized in that: described
Longitudinal construction joint up and down in certain altitude setting drainable waterproofing plate, the drainable waterproofing plate outer plate surface and non-woven fabrics close to having thereon
There is the inner plate surface of groove-like structure then with preliminary bracing structure close to the lower edges of groove-like structure connection drainable waterproofing plate are formed vertically
Drainage channel.
The utility model has the beneficial effects that under conditions of existing lining cutting drainage system, it is logical in longitudinal construction joint position
It crosses setting drainable waterproofing plate and forms vertical drainage channel between supporting construction and secondary liner structure in the early stage, in the early stage supporting construction
Occur to still ensure that the underground water energy at arch wall position can smoothly enter into longitudinal blind pipe and protection is circumferential blind in the case where larger extruding
Pipe, it is ensured that drainage system is unimpeded, prevents lining cutting from occurring water pressure behind, guarantees the safety of liner structure；Drain bar has waterproof
Ability will enhance the waterproof ability of secondary liner structure longitudinal direction construction joint；Construction technology difficulty is low, and investment is small, and process is simple, and
Advantageously ensure that construction quality.
Detailed description of the invention
This specification includes following three width attached drawing:
Fig. 1 is that the utility model one kind can keep the tunnel-liner guarded drainage of longitudinal blind pipe drainage performance to construct；
Fig. 2 is the sectional view of the line A-A along Fig. 1；
Fig. 3 is that the utility model one kind can keep guarded drainage in the tunnel-liner guarded drainage construction of longitudinal blind pipe drainage performance
The cross-section diagram of plate.
Component, toponym and corresponding label: preliminary bracing structure 10, secondary liner structure 20, lateral sulcus are shown in figure
21, longitudinal construction joint 22, circumferential blind pipe 31, non-woven fabrics 32, splash guard 33, longitudinal blind pipe 34, drainable waterproofing plate 35, vertical groove
36。
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
Referring to figs. 1 to Fig. 3, one kind of the utility model can keep the tunnel-liner guarded drainage structure of longitudinal blind pipe drainage performance
It makes, including circumferential blind pipe 31, the longitudinal blind pipe 34, non-woven fabrics being set between preliminary bracing structure 10 and secondary liner structure 20
32 and splash guard 33, wherein splash guard 33 leans on country rock side close to secondary liner structure 20, circumferential blind pipe 31, longitudinal blind pipe 34 close to
Preliminary bracing structure 10, longitudinal blind pipe 34 are set to abutment wall foot and lower than longitudinal construction joints 22, and be set to secondary lining knot
Lateral sulcus 21 of the short abutment wall of structure 20 by side of driving a vehicle is connected.Guarded drainage is set within the scope of longitudinal direction about 22 certain altitude of construction joint
Plate, 35 outer plate surface of drainable waterproofing plate and non-woven fabrics 32 close to, thereon the inner plate surface with groove-like structure then with preliminary bracing structure
10 close to the lower edges that groove-like structure is connected to drainable waterproofing plate 35 form vertical drainage channel.
Referring to 1 and Fig. 2, drainable waterproofing plate 35 has enough rigidity, even if the coagulation soil pressure when constructing secondary liner structure
It remains to form effective vertical drainage channel under power or later period squeezing action, while can effectively prevent preliminary bracing structure and secondary lining
It builds after structure squeezes and forms gap between drainable waterproofing plate 35 and non-woven fabrics 32 and splash guard 33.35 pairs of longitudinal directions of drainable waterproofing plate are blind
Protection is formed at the lower part of pipe 34 and circumferential blind pipe 31, on inner plate surface vertical drainage channel by the water ejectment within the scope of arch wall extremely
Longitudinal blind pipe 34, supporting construction 10 occurs to still ensure that the underground water energy at arch wall position is smooth in the case where larger extruding in the early stage
Enter longitudinal blind pipe 34, it is ensured that drainage system is unimpeded, prevents lining cutting from occurring water pressure behind, guarantees the safety of liner structure.
Referring to Fig. 3, the groove-like structure is the vertical groove 36 of the longitudinally spaced setting on 35 inner plate surface of drainable waterproofing plate.
The utility model one kind described above that only explains through diagrams can keep the tunnel-liner of longitudinal blind pipe drainage performance
Some principles of guarded drainage construction, are not intended to shown in being confined to the utility model and described specific structure and the scope of application
It is interior, therefore all corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the utility model.
Claims (2)
1. one kind can keep the tunnel-liner guarded drainage of longitudinal blind pipe drainage performance to construct, including be set to preliminary bracing structure
(10) the circumferential blind pipe (31) between secondary liner structure (20), longitudinal blind pipe (34), non-woven fabrics (32) and splash guard (33),
Wherein splash guard (33) leans on country rock side close to secondary liner structure (20), and circumferential blind pipe (31), longitudinal blind pipe (34) are close to initial stage
Supporting construction (10), longitudinal blind pipe (34) are set to abutment wall foot and lower than longitudinal construction joints (22), and be set to secondary lining
Lateral sulcus (21) of structure (20) the short abutment wall by side of driving a vehicle is connected, it is characterized in that: the longitudinal direction construction joint (22) is certain high up and down
It spends drainable waterproofing plate is set in range, drainable waterproofing plate (35) outer plate surface and non-woven fabrics (32) are close to thereon with groove-like structure
Inner plate surface is then with preliminary bracing structure (10) close to the lower edges that groove-like structure is connected to drainable waterproofing plate (35) form vertical drainage
Channel.
2. one kind as described in claim 1 can keep the tunnel-liner guarded drainage of longitudinal blind pipe drainage performance to construct, feature
Be: the groove-like structure is the vertical groove (36) of the longitudinally spaced setting on drainable waterproofing plate (35) inner plate surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768951.7U CN208473893U (en) | 2018-05-22 | 2018-05-22 | A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768951.7U CN208473893U (en) | 2018-05-22 | 2018-05-22 | A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208473893U true CN208473893U (en) | 2019-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768951.7U Active CN208473893U (en) | 2018-05-22 | 2018-05-22 | A kind of tunnel-liner guarded drainage keeping longitudinal blind pipe drainage performance constructs |
Country Status (1)
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| CN (1) | CN208473893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734457A (en) * | 2020-07-02 | 2020-10-02 | 青岛理工大学 | Construction method of tunnel water-drainage-preventing system |
| CN112431615A (en) * | 2020-11-27 | 2021-03-02 | 中铁四局集团有限公司 | Permanent single-layer lining drainage method for underground tank room of hyperboloid dome |
-
2018
- 2018-05-22 CN CN201820768951.7U patent/CN208473893U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734457A (en) * | 2020-07-02 | 2020-10-02 | 青岛理工大学 | Construction method of tunnel water-drainage-preventing system |
| CN112431615A (en) * | 2020-11-27 | 2021-03-02 | 中铁四局集团有限公司 | Permanent single-layer lining drainage method for underground tank room of hyperboloid dome |
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