CN208473885U - Tunnel Gushing section primary support structure with ribbing - Google Patents
Tunnel Gushing section primary support structure with ribbing Download PDFInfo
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- CN208473885U CN208473885U CN201821077015.8U CN201821077015U CN208473885U CN 208473885 U CN208473885 U CN 208473885U CN 201821077015 U CN201821077015 U CN 201821077015U CN 208473885 U CN208473885 U CN 208473885U
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- preliminary bracing
- bracing structure
- tunnel
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Abstract
Tunnel Gushing section primary support structure with ribbing and construction method are avoided environmental risk, duration risk, risk of drawing water as caused by water burst, prominent mud problem, are guaranteed preliminary bracing structure safety and safety for tunnel engineering with the water burst of effective ejectment preliminary bracing structure behind.Preliminary bracing structure is by standard design segments preliminary bracing structure and digs a section preliminary bracing structure composite and constitutes, dig section preliminary bracing structure be located at tunnel surrounding arch wall position dig in the space to be formed, it by the reinforced concrete circle beam of longitudinal gap setting and fills the dry-laid rubble between adjacent two reinforced concrete circle beam and constitutes, each reinforced concrete circle beam and standard design segments preliminary bracing structure are consolidated and be integrated.Drainage system includes the transverse drain of longitudinal gap setting, and the inner end of transverse drain is located in dry-laid rubble, by the water burst ejectment of standard design segments preliminary bracing structure behind to left side lateral sulcus, right side lateral sulcus and Central drain.
Description
Technical field
The utility model relates to tunnels, in particular to Tunnel Gushing section primary support structure with ribbing.
Background technique
With the high speed development of railway construction in China, under the guide of national policy, railway drives mountain into, drives miserably
Area's economic development.Mountain area geology is complicated, and the unfavorable geologies such as karst, gas, tomography bring huge challenge to railway construction.Rock
Molten area underground water is relatively abundant, often occurs water burst, prominent mud in constructing tunnel, destroys preliminary bracing structure, operating environment in tunnel
Difference, construction risk are high.There are not preferable treatment measures in case of water burst, prominent mud yet, often will cause duration loss, clearly
It becomes silted up, effluent cost height, economic loss is huge, and tunnel safety cannot also ensure.Traditional water burst, prominent mud treatment measures are generally
The measures such as dredging closure, grouting and reinforcing, drainage pressure-reducing, strengthening supporting, traditional measures generally occur to take reinforcing after prominent mud
Scheme, how construction period solve tunnel in burst problem, reinforce preliminary bracing rigidity, guarantee preliminary bracing structure safety,
It prevents from collapsing and becomes current urgent problem, improve the research that preliminary bracing structure is also the tunnel of rich groundwater from now on
Direction.
Currently, the treatment measures research for water burst, prominent mud, both at home and abroad to advance support optimization, construction optimization, branch
It is more to protect parameter optimization research, and it is less preliminary bracing structure optimization is studied, this in improvement water burst tunnel to constructing ring
Border guarantees that preliminary bracing structure brings safely larger difficulty.
Utility model content
The technical problem to be solved by the utility model is to provide Tunnel Gushing section primary support structures with ribbing, effectively to draw
The water burst for arranging preliminary bracing structure behind avoids environmental risk, duration risk, risk of drawing water as caused by water burst, prominent mud problem,
Guarantee preliminary bracing structure safety and safety for tunnel engineering.
It is as follows that the utility model solves technical solution used by its technical problem:
The Tunnel Gushing section primary support structure with ribbing of the utility model, tunnel structure include secondary liner structure, initial stage
Supporting construction and drainage system, drainage system include the left side lateral sulcus for being set to secondary liner structure abutment wall bottom outside, right side
Lateral sulcus and the Central drain for being set to inverted arch filled layer center, it is characterized in that: the preliminary bracing structure is as at the beginning of standard design segments
Phase supporting construction is constituted with section preliminary bracing structure composite is digged；Section preliminary bracing structure that digs is located to tunnel surrounding arch
Wall position dig in the space to be formed, and is mixed by the reinforced concrete circle beam and filling of longitudinal gap setting in adjacent two reinforcing bar
Dry-laid rubble between solidifying pedosphere beam is constituted, and each reinforced concrete circle beam and standard design segments preliminary bracing structure consolidation are one
Body；The drainage system further includes the transverse drain of longitudinal gap setting, and the inner end of transverse drain is located in dry-laid rubble,
By the water burst ejectment of standard design segments preliminary bracing structure behind to left side lateral sulcus, right side lateral sulcus and Central drain.
The utility model has the beneficial effects that can effective ejectment preliminary bracing structure behind water burst, avoid by water burst, prominent
Environmental risk caused by mud problem, duration risk, risk of drawing water guarantee preliminary bracing structure safety and safety for tunnel engineering；Between
It connects and saves huge construction investment, and improve construction environment in tunnel；Water burst, prominent mud section tunnel initial-stage branch for rich groundwater
Shield design provides scientific basis, keeps the design of Tunnel Gushing section preliminary bracing more reasonable, safe and reliable.
Detailed description of the invention
This specification includes following six width attached drawing:
Fig. 1 is the skiagraph of the utility model Tunnel Gushing section primary support structure with ribbing；
Fig. 2 is the sectional view of the A-A along Fig. 1；
Fig. 3 is the sectional view of the B-B along Fig. 1；
Fig. 4 is the construction method schematic diagram of the utility model Tunnel Gushing section primary support structure with ribbing；
Fig. 5 is the construction cross-section diagram of the utility model Tunnel Gushing section primary support structure with ribbing；
Fig. 6 is the construction cross-section diagram of the utility model Tunnel Gushing section primary support structure with ribbing.
Component and corresponding label: secondary liner structure 11, standard design segments preliminary bracing structure 12, reinforcing bar are shown in figure
Concrete collar tie beam 13, dry-laid rubble 14, tunnel surrounding 15, left side lateral sulcus 16a, right side lateral sulcus 16b, transverse drain 17, center
Ditch 18, inverted arch filled layer 19, top bar 20 get out of a predicament or an embarrassing situation 21, system anchor tube 22, advance support 23, lock foot anchor tube 24.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to figs. 1 to Fig. 3, the Tunnel Gushing section primary support structure with ribbing of the utility model, tunnel structure includes secondary
Liner structure 11, preliminary bracing structure and drainage system, drainage system include being set to outside 11 abutment wall bottom of secondary liner structure
Left side lateral sulcus 16a, the right side lateral sulcus 16b of side and the Central drain 18 for being set to 19 center of inverted arch filled layer.The preliminary bracing
Structure is by standard design segments preliminary bracing structure 12 and digs a section preliminary bracing structure composite and constitutes；It is described to dig a section preliminary bracing
Structure, which is located at, dig in the space to be formed to 15 arch wall position of tunnel surrounding, the reinforced concrete pedosphere being arranged by longitudinal gap
Beam 13 and the dry-laid rubble 14 filled between adjacent two reinforced concrete circle beam 13 are constituted, each reinforced concrete circle beam 13 and mark
The quasi- consolidation of design segments preliminary bracing structure 12 is integrated.The drainage system further includes the transverse drain of longitudinal gap setting
17, the inner end of transverse drain 17 is located in dry-laid rubble 14, and the water burst of 12 behind of standard design segments preliminary bracing structure is drawn
Drain into left side lateral sulcus 16a, right side lateral sulcus 16b and Central drain 18.Can effectively ejectment preliminary bracing structure behind water burst, avoid
Environmental risk, duration risk, risk of drawing water as caused by water burst, prominent mud problem, guarantee that preliminary bracing structure safety and tunnel are applied
Work safety；The huge construction investment of indirect saving, and improve construction environment in tunnel.Water burst, prominent mud section for rich groundwater
Design of Tunnel provides scientific basis, keeps the design of Tunnel Gushing section preliminary bracing more reasonable, safe and reliable.
Referring to Fig. 4, the standard design segments preliminary bracing structure 12 is identical as traditional preliminary bracing structure, by system anchor tube
22, reinforced mesh, shotcrete layer and steelframe are constituted, and the steelframe of reinforced mesh and longitudinal gap setting is embedded in injection coagulation
In soil layer, it is in that blossom type is laid and squeezed into tunnel surrounding 15 that system anchor tube 22 is circumferentially-spaced along arch wall.
Referring to Fig. 2, the reinforced concrete circle beam 13 is using the armored concrete with 11 same levels of secondary liner structure
Structure.Reinforced concrete circle beam 13 and the consolidation of standard design segments preliminary bracing structure 12 form preliminary bracing structure with ribbing,
The overall structure rigidity of preliminary bracing structure can be effectively improved, it is ensured that card blow section preliminary bracing structure safety.
Referring to 4 to Fig. 6, a kind of Tunnel Gushing section primary support structure with ribbing of the utility model is applied as follows
Work:
1. applying tunnel arch advance support 23, tunneling top bar 20 applies arch system anchor tube 22；
2. setting up template in design position, 13 top concrete of reinforced concrete circle beam is perfused, and applies arch springing or so two
Side chain foot anchor tube 24；
3. excavation gets out of a predicament or an embarrassing situation 21, abutment wall portion system anchor tube 22 is applied；
4. setting up template, 13 lower part concrete of reinforced concrete circle beam, 13 top of reinforced concrete circle beam, lower part steel is perfused
Muscle is mutually inserted；
5. after polycyclic reinforced concrete circle beam 13 reaches design strength, between adjacent reinforced concrete collar tie beam 13 successively
Construction dry-laid rubble 14, standard design segments preliminary bracing structure 12, and embedded transverse drain 17.
Then apply secondary liner structure 11, inverted arch filled layer 19, left side lateral sulcus 16a, right side lateral sulcus 16b and Central drain
18, transverse drain 17 is connected to left side lateral sulcus 16a, right side lateral sulcus 16b and Central drain 18.
The above is explain through diagrams the utility model Tunnel Gushing section primary support structure with ribbing and construction method
Some principles, be not intended to for the utility model to be confined to shown in and the specific structure and the scope of application in, therefore it is all
All corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the utility model.
Claims (3)
1. Tunnel Gushing section primary support structure with ribbing, tunnel structure include secondary liner structure (11), preliminary bracing structure and
Drainage system, drainage system include left side lateral sulcus (16a), the right side side for being set to secondary liner structure (11) abutment wall bottom outside
Ditch (16b) and the Central drain (18) for being set to inverted arch filled layer (19) center, it is characterized in that: the preliminary bracing structure is by marking
It quasi- design segments preliminary bracing structure (12) and digs section preliminary bracing structure composite and constitutes；It is described to dig a section preliminary bracing structure bit
Dig in the space to be formed in tunnel surrounding (15) arch wall position, the reinforced concrete circle beam being arranged by longitudinal gap
(13) it and fills dry-laid rubble (14) between adjacent two reinforced concrete circle beam (13) and constitutes, each reinforced concrete circle beam
(13) it is integrated with standard design segments preliminary bracing structure (12) consolidation；The drainage system further includes the cross of longitudinal gap setting
To drainpipe (17), the inner end of transverse drain (17) is located in dry-laid rubble (14), by standard design segments preliminary bracing structure
(12) the water burst ejectment of behind is to left side lateral sulcus (16a), right side lateral sulcus (16b) and Central drain (18).
2. Tunnel Gushing section primary support structure with ribbing as described in claim 1, it is characterized in that: the standard design segments initial stage
Supporting construction (12) is made of system anchor tube (22), reinforced mesh, shotcrete layer and steelframe, reinforced mesh and longitudinal gap
The steelframe of setting is embedded in shotcrete layer, and it is in that blossom type is laid and squeezes into tunnel that system anchor tube (22) is circumferentially-spaced along arch wall
In road country rock (15).
3. Tunnel Gushing section primary support structure with ribbing as described in claim 1, it is characterized in that: the reinforced concrete circle beam
(13) using the reinforced concrete structure with secondary liner structure (11) same levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077015.8U CN208473885U (en) | 2018-07-06 | 2018-07-06 | Tunnel Gushing section primary support structure with ribbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077015.8U CN208473885U (en) | 2018-07-06 | 2018-07-06 | Tunnel Gushing section primary support structure with ribbing |
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| Publication Number | Publication Date |
|---|---|
| CN208473885U true CN208473885U (en) | 2019-02-05 |
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ID=65213586
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821077015.8U Active CN208473885U (en) | 2018-07-06 | 2018-07-06 | Tunnel Gushing section primary support structure with ribbing |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868826A (en) * | 2018-07-06 | 2018-11-23 | 中铁二院工程集团有限责任公司 | Tunnel Gushing section primary support structure with ribbing and construction method |
| CN110130981A (en) * | 2019-07-02 | 2019-08-16 | 济南市坤鹏技术开发中心 | A kind of tunnel construction safe construction method |
-
2018
- 2018-07-06 CN CN201821077015.8U patent/CN208473885U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108868826A (en) * | 2018-07-06 | 2018-11-23 | 中铁二院工程集团有限责任公司 | Tunnel Gushing section primary support structure with ribbing and construction method |
| CN108868826B (en) * | 2018-07-06 | 2023-11-17 | 中铁二院工程集团有限责任公司 | Construction method of ribbed primary support structure of tunnel water burst section |
| CN110130981A (en) * | 2019-07-02 | 2019-08-16 | 济南市坤鹏技术开发中心 | A kind of tunnel construction safe construction method |
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