CN202300445U - Super-shallow underpass tunnel support structure with long pipe shed for crossing road - Google Patents

Super-shallow underpass tunnel support structure with long pipe shed for crossing road Download PDF

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Publication number
CN202300445U
CN202300445U CN2011204124062U CN201120412406U CN202300445U CN 202300445 U CN202300445 U CN 202300445U CN 2011204124062 U CN2011204124062 U CN 2011204124062U CN 201120412406 U CN201120412406 U CN 201120412406U CN 202300445 U CN202300445 U CN 202300445U
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China
Prior art keywords
support structure
canopy
long pipe
structure under
tunnel support
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Expired - Lifetime
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CN2011204124062U
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Chinese (zh)
Inventor
颜振聪
韩文忠
邓历振
陈希茂
蔡履沐
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Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
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Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
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Priority to CN2011204124062U priority Critical patent/CN202300445U/en
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Publication of CN202300445U publication Critical patent/CN202300445U/en
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Abstract

The utility model relates to a super-shallow underpass tunnel support structure with a long pipe shed for crossing a road, which is characterized by comprising a pipe shed, a small duct advancing support, an initial support and a secondary liner. The initial support and the secondary liner are arranged in the arch portion of a tunnel, and a waterproof layer is arranged between the initial support and the secondary liner. The super-shallow underpass tunnel support structure is reasonable in structural design, convenient in construction and capable of controlling settlement of tunnel construction and settlement of the surface of the road, and thereby guaranteeing safety of tunnel construction and road operating.

Description

Wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding
Technical field
The utility model relates to a kind of tunnel support structure, wears highway Long Pipe-shed tunnel support structure under especially a kind of ultra shallow embedding.
Background technology
Jiahe highway is one of the central core of circulation on turnover island, Xiamen City.The following highway tunnel of wearing wherein, left line length 76m, passing through the bid section mileage is LZK0+581~+ 657, right line length 65m passes through the bid section mileage and is LYK0+608~+ 673, and is higher to settlement request.Yet degrade monadnock landforms and littoral deposit intermediate zone mutually because stratum of living in, tunnel mainly is positioned at, soil layer has the Quaternary system manual work to fill clay, piece stone soil, mud matter sand, silt clay, coarse sand, geochemistry of Yanshanian granitoids successively from top to bottom.So require a kind of sedimentation of constructing tunnel and tunnel support structure of highway ground settlement controlled effectively of design.
Summary of the invention
The purpose of the utility model is to provide wears highway Long Pipe-shed tunnel support structure under a kind of ultra shallow embedding; It is reasonable in design to wear highway tunnel supporting and protection structure under this; Can control the sedimentation and the highway ground settlement of constructing tunnel effectively, to guarantee the safety of constructing tunnel and highway operation.
The technical scheme of the utility model is: wear highway Long Pipe-shed tunnel support structure under a kind of ultra shallow embedding; It is characterized in that: comprise pipe canopy, ductule advance support, preliminary bracing and secondary lining; The arch in tunnel is disposed with preliminary bracing and secondary lining, is provided with waterproofing course between said preliminary bracing and the secondary lining.
Also be reserved with deflection between above-mentioned preliminary bracing and the secondary lining.
The aforementioned tube canopy is individual layer or bimetallic tube canopy.
Above-mentioned mono-layer tube canopy is arranged circumferentially the bottom that scope extends to the both sides body of wall.
Above-mentioned bimetallic tube canopy comprises outer bassoon canopy and internal layer bassoon canopy, and the scope that is arranged circumferentially of said outer bassoon canopy extends to the top of both sides body of wall, and the scope that is arranged circumferentially of said internal layer bassoon canopy extends to the bottom of both sides body of wall.
The scope that is arranged circumferentially of above-mentioned ductule advance support extends to the bottom of both sides body of wall.
Above-mentioned waterproofing course is the PVC waterproof roll.
The steel mesh reinforcement of above-mentioned preliminary bracing is a loopful double steel bar net, and the bar diameter of said loopful double steel bar net is 5 ~ 10mm, and mesh spacing is 15cm * 15cm.
What the aforementioned tube canopy adopted is that diameter is the bassoon canopy of 125 ~ 135mm, and the circumferential distance of those bassoon canopies is 25 ~ 35cm.
What the ductule of above-mentioned ductule advance support adopted is that diameter is the pre-grouting ductule of 40 ~ 45mm, and its circumferential distance is 25 ~ 35cm, and every length is 3 ~ 4m, and longitudinal pitch is 1.5 ~ 2.5m.
The utility model has the advantages that reasonable in design; Easy construction improves the efficient of constructing tunnel, and can control the sedimentation and the highway ground settlement of constructing tunnel effectively; Particularly be positioned at and degrade monadnock landforms and littoral deposit intermediate zone mutually, guaranteed safety for tunnel engineering property.
Description of drawings
Fig. 1 is the section structure sketch map of the utility model embodiment.
Among the figure: 1-pipe canopy 1-1-outer bassoon canopy 1-2-internal layer bassoon canopy 2-ductule advance support 3-preliminary bracing 4-secondary lining 5-waterproofing course 6-deformation allowance 7-anchor pole.
The specific embodiment
For letting the above-mentioned feature and advantage of the utility model can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs., elaborates as follows.
Wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding of the utility model; It is characterized in that: comprise pipe canopy 1, ductule advance support 2, preliminary bracing 3 and secondary lining 4; The arch in tunnel is disposed with preliminary bracing 3 and secondary lining 4, is provided with waterproofing course 5 between said preliminary bracing 3 and the secondary lining 4.Said waterproofing course is the PVC waterproof roll.
Also be reserved with deflection 6 between above-mentioned preliminary bracing 3 and the secondary lining 4.The steel mesh reinforcement of said preliminary bracing 3 is a loopful double steel bar net, and the bar diameter of said loopful double steel bar net is 8mm, and mesh spacing is 15cm * 15cm, preliminary bracing thickness be 35cm.
Aforementioned tube canopy 1 is individual layer or bimetallic tube canopy.What said pipe canopy 1 adopted is that diameter is the bassoon canopy of 133mm, and the circumferential distance of those bassoon canopies is 30cm.Said mono-layer tube canopy is arranged circumferentially the bottom that scope extends to the both sides body of wall.Under wear water service pipe end arch portion and be set to the bimetallic tube canopy; Pressing the cement of annotating is the water glass slurries; Said bimetallic tube canopy comprises outer bassoon canopy 1-1 and internal layer bassoon canopy 1-2; The scope that is arranged circumferentially of said outer bassoon canopy 1-1 extends to the top of both sides body of wall, and the scope that is arranged circumferentially of said internal layer bassoon canopy 1-2 extends to the bottom of both sides body of wall.
The scope that is arranged circumferentially of above-mentioned ductule advance support 2 extends to the bottom of both sides body of wall.What the ductule of above-mentioned ductule advance support adopted is that diameter is the pre-grouting ductule of 42mm, and its circumferential distance is 30cm, and every length is 1.8m for the 3.5m longitudinal pitch.
The utility model does not limit to above-mentioned preferred forms, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model.

Claims (10)

1. wear highway Long Pipe-shed tunnel support structure under a ultra shallow embedding; It is characterized in that: comprise pipe canopy, ductule advance support, preliminary bracing and secondary lining; The arch in tunnel is disposed with preliminary bracing and secondary lining, is provided with waterproofing course between said preliminary bracing and the secondary lining.
2. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 1, it is characterized in that: also be reserved with deflection between said preliminary bracing and the secondary lining.
3. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 1, it is characterized in that: said pipe canopy is individual layer or bimetallic tube canopy.
4. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 3, it is characterized in that: said mono-layer tube canopy is arranged circumferentially the bottom that scope extends to the both sides body of wall.
5. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 3; It is characterized in that: said bimetallic tube canopy comprises outer bassoon canopy and internal layer bassoon canopy; The scope that is arranged circumferentially of said outer bassoon canopy extends to the top of both sides body of wall, and the scope that is arranged circumferentially of said internal layer bassoon canopy extends to the bottom of both sides body of wall.
6. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 1, it is characterized in that: the scope that is arranged circumferentially of said ductule advance support extends to the bottom of both sides body of wall.
7. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 1, it is characterized in that: said waterproofing course is the PVC waterproof roll.
8. wear highway Long Pipe-shed tunnel support structure under the ultra shallow embedding according to claim 1 and 2; It is characterized in that: the steel mesh reinforcement of said preliminary bracing is a loopful double steel bar net; The bar diameter of said loopful double steel bar net is 5 ~ 10mm, and mesh spacing is 15cm * 15cm.
9. according to wearing highway Long Pipe-shed tunnel support structure under claim 1 or the 3 described ultra shallow embeddings, it is characterized in that: what said pipe canopy adopted is that diameter is the bassoon canopy of 125 ~ 135mm, and the circumferential distance of those bassoon canopies is 25 ~ 35cm.
10. according to wearing highway Long Pipe-shed tunnel support structure under claim 1 or the 6 described ultra shallow embeddings; It is characterized in that: what the ductule of said ductule advance support adopted is that diameter is the pre-grouting ductule of 40 ~ 45mm; Its circumferential distance is 25 ~ 35cm; Every length is 3 ~ 4m, and longitudinal pitch is 1.5 ~ 2.5m.
CN2011204124062U 2011-10-26 2011-10-26 Super-shallow underpass tunnel support structure with long pipe shed for crossing road Expired - Lifetime CN202300445U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204124062U CN202300445U (en) 2011-10-26 2011-10-26 Super-shallow underpass tunnel support structure with long pipe shed for crossing road

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204124062U CN202300445U (en) 2011-10-26 2011-10-26 Super-shallow underpass tunnel support structure with long pipe shed for crossing road

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847374A (en) * 2015-04-24 2015-08-19 长安大学 Soft rock large-deformation tunnel supporting system and construction method thereof
CN106368710A (en) * 2015-07-24 2017-02-01 中国铁建大桥工程局集团有限公司 Pavement protection method for super shallow-buried tunnel penetrating through existing road underneath
CN106499409A (en) * 2016-11-07 2017-03-15 中国电建集团成都勘测设计研究院有限公司 The preliminary bracing method of newly-built cavern
CN107035386A (en) * 2016-12-07 2017-08-11 中铁四局集团有限公司 Bad ground curved tunnel overlength π formula daguanpeng construction methods
CN109723443A (en) * 2018-12-30 2019-05-07 中铁十四局集团有限公司 Method for tunnel construction
CN110630284A (en) * 2019-09-28 2019-12-31 广州地铁设计研究院股份有限公司 Settlement active control structure and method for construction of closely-adhered underpass existing subway station
CN111594229A (en) * 2020-05-28 2020-08-28 中国建筑第七工程局有限公司 Construction method for multi-arch tunnel entrance under shallow-buried water-rich geological condition
CN112195698A (en) * 2020-09-28 2021-01-08 中国一冶集团有限公司 Construction method for road crossing under road section with heavy traffic pressure

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104847374A (en) * 2015-04-24 2015-08-19 长安大学 Soft rock large-deformation tunnel supporting system and construction method thereof
CN106368710A (en) * 2015-07-24 2017-02-01 中国铁建大桥工程局集团有限公司 Pavement protection method for super shallow-buried tunnel penetrating through existing road underneath
CN106499409A (en) * 2016-11-07 2017-03-15 中国电建集团成都勘测设计研究院有限公司 The preliminary bracing method of newly-built cavern
CN106499409B (en) * 2016-11-07 2018-09-28 中国电建集团成都勘测设计研究院有限公司 The preliminary bracing method of newly-built cavern
CN107035386A (en) * 2016-12-07 2017-08-11 中铁四局集团有限公司 Bad ground curved tunnel overlength π formula daguanpeng construction methods
CN109723443A (en) * 2018-12-30 2019-05-07 中铁十四局集团有限公司 Method for tunnel construction
CN110630284A (en) * 2019-09-28 2019-12-31 广州地铁设计研究院股份有限公司 Settlement active control structure and method for construction of closely-adhered underpass existing subway station
CN110630284B (en) * 2019-09-28 2024-02-13 广州地铁设计研究院股份有限公司 Settlement active control structure and method for construction of closely-attached underpass existing subway station
CN111594229A (en) * 2020-05-28 2020-08-28 中国建筑第七工程局有限公司 Construction method for multi-arch tunnel entrance under shallow-buried water-rich geological condition
CN111594229B (en) * 2020-05-28 2021-08-20 中建七局交通建设有限公司 Construction method for multi-arch tunnel entrance under shallow-buried water-rich geological condition
CN112195698A (en) * 2020-09-28 2021-01-08 中国一冶集团有限公司 Construction method for road crossing under road section with heavy traffic pressure

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