CN102071948B - Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof - Google Patents
Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof Download PDFInfo
- Publication number
- CN102071948B CN102071948B CN 201110044651 CN201110044651A CN102071948B CN 102071948 B CN102071948 B CN 102071948B CN 201110044651 CN201110044651 CN 201110044651 CN 201110044651 A CN201110044651 A CN 201110044651A CN 102071948 B CN102071948 B CN 102071948B
- Authority
- CN
- China
- Prior art keywords
- pipe
- arch
- reinforcement
- pipe roof
- pipe canopy
- 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.)
- Active
Links
Images
Abstract
The invention discloses a door type composite pipe roof umbrella arch structure for a tunnel opening and a construction method thereof. The structure comprises a pipe roof umbrella arch positioned on the top part of the tunnel opening and pre-reinforced piles positioned on the two sides of the tunnel opening; the pipe roof umbrella arch is connected with the pre-reinforced piles and supported by the pre-reinforced piles; the top ends of the pre-reinforced piles are fixedly connected with a top cover beam; and bagged backfill is filled between the top cover beam and the pipe roof umbrella arch. The construction method comprises the following steps: firstly excavating at the two sides of the tunnel opening, pouring the pre-reinforced piles, and pre-burying connecting sleeves in the piles; then, excavating the section of the pipe roof umbrella arch and keeping the core soil; inserting connecting reinforcing steel bars into the connecting sleeves, and pouring the pipe roof umbrella arch at the same time so that the pipe roof umbrella arch is fixedly connected with the pre-reinforced piles integrally; meanwhile, reserving a pipe roof sleeve in the pipe roof umbrella arch, and setting long pipe roof; and finally, filling bagged backfill above the pipe roof umbrella arch and pouring the top cover beam to finish the construction. The door type composite pipe roof umbrella arch structure disclosed by the invention is more stable, has relatively good mechanical property, and can effectively prevent the collapse of the tunnel opening and slippage of edge and slope.
Description
Technical field
The present invention relates to ruggedized construction and the job practices thereof of traffic tunnel, reinforcing structure and job practices thereof when relating in particular to a kind of constructing tunnel.
Background technology
Tunnel portal is the throat in tunnel, and the hole part is usually more broken soft on geology, is easy to unstability and forms and to come down, to cave in etc.Therefore, whether Portal Section stablizes difficulty or ease and the operation safety that is directly connected to constructing tunnel.In the mountain tunnel construction, for the standing pipe canopy cover arch of putting in the soft location, hole of fragmentation, reinforce to carry out Portal Section by setting up long pipe shed.Yet, be in the situation of closing on stable state for the earth's surface, although performed long pipe shed, carry out tunneling when construction, the Portal Section limit, facing upward the slope and cracking, slippage still may occur, causing sinking excessive in the hole in, conventional pipe canopy cover arch is shifted cracking, and then causes the hole cave-in accident.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of Stability Analysis of Structures, mechanical property better, can prevent effectively that tunnel portal from caving in and the limit, face upward the gate-type composite pipe-shed cover-arch structure that is used for tunnel portal that hill wash moves, also correspondingly provide that a kind of construction sequence is simple, efficiency of construction is high, construction economy and the safety job practices of gate-type composite pipe-shed cover-arch structure preferably.
For solving the problems of the technologies described above, the technical scheme that the present invention proposes is a kind of gate-type composite pipe-shed cover-arch structure for tunnel portal, described gate-type composite pipe-shed cover-arch structure comprises the pipe canopy cover arch that is positioned at the tunnel portal top and the pre-reinforcement stake that is positioned at the tunnel portal both sides, the two ends of described pipe canopy cover arch are connected with the pre-reinforcement stake of both sides respectively, and should overlap arch by the pre-reinforcement pile bearing by the pipe canopy; The top of pre-reinforcement stake is connected with roof rail, is filled with packed backfill between described roof rail and described pipe canopy cover arch.
As the further improvement to above-mentioned gate-type composite pipe-shed cover-arch structure, be embedded with splicing sleeve in the described pre-reinforcement stake, the two ends of described pipe canopy cover arch are connected with described pre-reinforcement stake by the connecting reinforcement that inserts this splicing sleeve.
The above-mentioned gate-type composite pipe-shed cover-arch structure that is used for tunnel portal preferably is provided with long pipe shed in the described roof rail.
As a total technical conceive, the present invention also provides a kind of job practices of above-mentioned gate-type composite pipe-shed cover-arch structure, may further comprise the steps:
(1) construction pre-reinforcement stake: in tunnel portal both sides excavation, the stake of cast pre-reinforcement, and in stake pre-buried splicing sleeve;
(2) tunneling pipe canopy cover arch: the pipe canopy cover arch section of tunneling, and the Core Soil of reservation tunnel excavation section;
(3) insert connecting reinforcement: in the splicing sleeve of described pre-reinforcement stake, insert connecting reinforcement;
(4) construction pipe canopy cover arch: gate spool canopy cover arch, make pipe canopy cover arch affixed in aggregates by connecting reinforcement and described pre-reinforcement stake, provided pipe canopy sleeve pipe in this pipe canopy cover arch arranges long pipe shed in pipe canopy sleeve pipe simultaneously;
(5) construction roof rail: after the concrete of described pipe canopy cover arch reaches design strength, filling bag reinstalls and bankets above pipe canopy cover arch, and pours into a mould roof rail above packed backfill, provided pipe canopy sleeve pipe in this roof rail, and in pipe canopy sleeve pipe, long pipe shed is set, finish construction.
Compared with prior art, the invention has the advantages that:
(1) gate-type composite pipe shed cover arch of the present invention has adopted " U " shape reinforcing structure that the pre-reinforcement stake combines with roof rail, will show more excellent performance on it is stressed in structural strength, stability and outside;
(2) adopt gate-type composite pipe-shed cover-arch structure of the present invention can more effectively prevent caving in of sinking in the Tunnel and hole, greatly improve safety and the efficiency of construction of constructing tunnel;
(3) adopt gate-type composite pipe-shed cover-arch structure of the present invention can more effectively prevent two slopes (side slope of tunnel portal and face upward the slope) slippage, further improve safety and the efficiency of construction of constructing tunnel;
(4) job practices operation relative simple of the present invention, efficiency of construction is high, can greatly reduce the height of construction and excavation, improves economy and the efficiency of construction of construction.
Description of drawings
Fig. 1 is the front view of the gate-type composite pipe-shed cover-arch structure in the embodiment of the invention.
Fig. 2 is the lateral view of the gate-type composite pipe-shed cover-arch structure in the embodiment of the invention.
Fig. 3 is the top view of the gate-type composite pipe-shed cover-arch structure in the embodiment of the invention.
Fig. 4 is the partial enlarged drawing at A place among Fig. 1.
Marginal data
1. pipe canopy cover encircles; 11. pipe canopy sleeve pipe; 12. long pipe shed; 2. pre-reinforcement stake; 21. splicing sleeve; 22. connecting reinforcement; 3. face upward the slope; 4. Core Soil; 5. roof rail; 6. packed backfill.
The specific embodiment
The invention will be further described below in conjunction with Figure of description and specific embodiment.
Embodiment:
A kind of gate-type composite pipe-shed cover-arch structure that is used for tunnel portal such as the present invention of Fig. 1～shown in Figure 4, this gate-type composite pipe-shed cover-arch structure comprises the pipe canopy cover arch 1 that is positioned at the tunnel portal top and the pre-reinforcement stake 2 that is positioned at the tunnel portal both sides, this pipe canopy cover arch 1 is by pre-reinforcement stake 2 supportings, and the two ends of pipe canopy cover arch 1 are connected with the pre-reinforcement stake 2 of both sides respectively.In the present embodiment, the end of pipe canopy cover arch 1 specifically is connected in position on the upper side, pre-reinforcement stake 2 middle parts.Be embedded with splicing sleeve 21 in pre-reinforcement stake 2, the two ends of pipe canopy cover arch 1 are to be connected with pre-reinforcement stake 2 by the connecting reinforcement 22 that inserts this splicing sleeve 21.Be connected with roof rail 5 on the top of pre-reinforcement stake 2, roof rail 5 and 1 of pipe canopy cover arch are filled with packed backfill 6.All be embedded with equally distributed pipe canopy sleeve pipe 11 and the long pipe shed 12 that passes this pipe canopy sleeve pipe 11 in pipe canopy cover arch 1 and the roof rail 5.
The job practices of the gate-type composite pipe-shed cover-arch structure that is used for tunnel portal of present embodiment may further comprise the steps:
1. construction pre-reinforcement stake: in weak, the broken location, traffic tunnel hole of a certain geology, excavate in the tunnel portal both sides first, pour into a mould pre-reinforcement stake 2, and in stake, intend the pre-buried splicing sleeve 21 in relevant position of tube connector canopy cover arch;
2. tunneling pipe canopy cover encircles: the section of tunneling pipe canopy cover arch and basis, both sides, and make the gradient of facing upward slope 3 of tunnel upper remain on 1: 1, and the Core Soil 4 of reservation tunnel excavation;
3. insertion connecting reinforcement: after the pipe canopy cover arch section excavation, in the splicing sleeve 21 of pre-reinforcement stake 2, insert connecting reinforcement 22;
4. construction pipe canopy overlaps arch: gate spool canopy cover arch 1, and it is affixed in aggregates by connecting reinforcement 22 and pre-reinforcement stake 2 to make the pipe canopy overlap arch 1, manages simultaneously the steel tube canopy sleeve pipe 11 of canopy cover arch 1 interior reservation φ 127mm at this, performs long pipe shed 12 in pipe canopy sleeve pipe 11;
5. construction roof rail: after the concrete of pipe canopy cover arch 1 reaches design strength, filling bag reinstalls and bankets 6 above pipe canopy cover arch 1, and pours into a mould roof rail 5 above packed backfill 6, at these roof rail 5 interior provided pipe canopy sleeve pipes 11, and at the pipe canopy sleeve pipe 11 interior long pipe sheds 12 that arrange, finish construction.
After the construction of the gate-type composite pipe-shed cover-arch structure of present embodiment is finished, can carry out follow-up advancing wide openly to dig, the construction of inverted arch and inverted arch backfill.In follow-up tunnel excavation work progress, because the pipe canopy at hole cover arch forms a stressed integral body with pre-reinforcement stake and the top roof rail of both sides, this can be avoided when excavation is got out of a predicament or an embarrassing situation, owing to the unsettled pipe canopy that causes in pipe canopy cover skewback plinth bottom overlaps sinking and the cracking of arch, thereby can greatly improve safety and the economy of constructing tunnel process.
Claims (3)
1. gate-type composite pipe-shed cover-arch structure that is used for tunnel portal, it is characterized in that: described gate-type composite pipe-shed cover-arch structure comprises the pipe canopy cover arch that is positioned at the tunnel portal top and the pre-reinforcement stake that is positioned at the tunnel portal both sides, the two ends of described pipe canopy cover arch are connected with the pre-reinforcement stake of both sides respectively, and should overlap arch by the pre-reinforcement pile bearing by the pipe canopy; The end of pipe canopy cover arch specifically is connected in position on the upper side, pre-reinforcement stake middle part, is embedded with splicing sleeve in the described pre-reinforcement stake, and the two ends of described pipe canopy cover arch are connected with described pre-reinforcement stake by the connecting reinforcement that inserts this splicing sleeve; The top of pre-reinforcement stake is connected with roof rail, is filled with packed backfill between described roof rail and described pipe canopy cover arch.
2. the gate-type composite pipe-shed cover-arch structure for tunnel portal according to claim 1 is characterized in that: be provided with long pipe shed in the described roof rail.
3. the job practices of a gate-type composite pipe-shed cover-arch structure as claimed in claim 1 or 2 may further comprise the steps:
(1) construction pre-reinforcement stake: in tunnel portal both sides excavation, the stake of cast pre-reinforcement, and in stake pre-buried splicing sleeve;
(2) tunneling pipe canopy cover arch: the pipe canopy cover arch section of tunneling, and the Core Soil of reservation tunnel excavation section;
(3) insert connecting reinforcement: in the splicing sleeve of described pre-reinforcement stake, insert connecting reinforcement;
(4) construction pipe canopy cover arch: gate spool canopy cover arch, make pipe canopy cover arch affixed in aggregates by connecting reinforcement and described pre-reinforcement stake, provided pipe canopy sleeve pipe in this pipe canopy cover arch arranges long pipe shed in pipe canopy sleeve pipe simultaneously;
(5) construction roof rail: after the concrete of described pipe canopy cover arch reaches design strength, filling bag reinstalls and bankets above pipe canopy cover arch, and pours into a mould roof rail above packed backfill, provided pipe canopy sleeve pipe in this roof rail, and in pipe canopy sleeve pipe, long pipe shed is set, finish construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110044651 CN102071948B (en) | 2011-02-24 | 2011-02-24 | Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110044651 CN102071948B (en) | 2011-02-24 | 2011-02-24 | Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102071948A CN102071948A (en) | 2011-05-25 |
| CN102071948B true CN102071948B (en) | 2013-01-16 |
Family
ID=44030684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110044651 Active CN102071948B (en) | 2011-02-24 | 2011-02-24 | Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102071948B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536266B (en) * | 2012-02-23 | 2014-04-02 | 山东盛大矿业股份有限公司 | Method for supporting top side of artificial tunnel |
| CN103967504B (en) * | 2014-05-21 | 2016-05-18 | 中国能源建设集团广东省电力设计研究院有限公司 | A kind of supporting construction and construction method of electric power plant circulating water system tunnel mouth |
| CN104389628B (en) * | 2014-11-21 | 2015-09-02 | 山西省交通科学研究院 | Landslide location tunnel reinforcement device and reinforced construction method |
| CN104612719B (en) * | 2014-12-15 | 2016-11-02 | 中铁二十局集团有限公司 | The anti-collapse processing method in a kind of soft rock tunnel hole |
| CN105257301B (en) * | 2015-10-16 | 2017-11-03 | 中铁十局集团第一工程有限公司 | A kind of shallow-depth-excavation tunnel weak surrounding rock landslide reinforcing and processing method |
| CN105863650B (en) * | 2016-05-20 | 2018-11-23 | 浙江省交通规划设计研究院 | It is a kind of elder generation wall after hole tunnel construction method |
| CN106761832A (en) * | 2016-12-30 | 2017-05-31 | 陈建强 | A kind of subway tunnel safe construction method |
| CN107035382A (en) * | 2017-06-22 | 2017-08-11 | 中铁十局集团第五工程有限公司 | Tunnel portal support system under weak surrounding rock |
| CN107503360B (en) * | 2017-07-20 | 2020-01-24 | 中铁十八局集团有限公司 | Huge loose rock pile tunnel import is piled and is carried back pressure reinforced structure |
| CN108119149B (en) * | 2018-01-02 | 2019-04-09 | 兰州理工大学 | The tunnel support structure and construction method of existing building are worn under a kind of |
| CN109869163A (en) * | 2019-04-03 | 2019-06-11 | 北京市市政工程设计研究总院有限公司 | A kind of construction method and structure of tunnel |
| CN109944597B (en) * | 2019-04-16 | 2020-11-06 | 陕西路桥集团有限公司 | Tunnel entering construction method based on protection of natural vegetation on side and up slopes |
| CN109915150A (en) * | 2019-04-26 | 2019-06-21 | 重庆交通大学 | A kind of pile foundation pre-reinforcement supporting construction and its construction method controlling tunnel subsidence |
| CN111365018B (en) * | 2020-03-25 | 2021-08-06 | 上海同岩土木工程科技股份有限公司 | Cover arch reinforcement method suitable for small tunnel clearance |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1426495A2 (en) * | 2002-12-02 | 2004-06-09 | Tief- und Baugeräte GmbH & Co. KG | Method and device for the construction of a tunnel or a trench |
| CN101082279A (en) * | 2007-06-27 | 2007-12-05 | 北京交通大学 | Peg-pole-prestress supporting system and construction method thereof |
| CN101260806A (en) * | 2008-04-24 | 2008-09-10 | 重庆交通科研设计院 | Preposition type opening construction method |
| CN201152176Y (en) * | 2007-10-29 | 2008-11-19 | 中铁二院工程集团有限责任公司 | Existed electrified railroad tunnel lengthened section structure |
| CN101864960A (en) * | 2010-05-17 | 2010-10-20 | 中铁二十局集团有限公司 | Carst region double-arch road tunnel construction method |
| CN201650302U (en) * | 2010-03-25 | 2010-11-24 | 中铁二院工程集团有限责任公司 | Eiking clear hole structure of existing high speed railway tunnel |
| CN202039859U (en) * | 2011-02-24 | 2011-11-16 | 湖南省交通规划勘察设计院 | Door type composite pipe shed cover arch structure for tunnel portal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS527138A (en) * | 1975-07-08 | 1977-01-20 | Seiwa Kiko Kk | Steel sheet pile used for method of tunnel construction |
| JPS55165317A (en) * | 1979-06-11 | 1980-12-23 | Nippon Keemoo Koji Kk | Burying method for steel-pipe sheet pile |
-
2011
- 2011-02-24 CN CN 201110044651 patent/CN102071948B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1426495A2 (en) * | 2002-12-02 | 2004-06-09 | Tief- und Baugeräte GmbH & Co. KG | Method and device for the construction of a tunnel or a trench |
| CN101082279A (en) * | 2007-06-27 | 2007-12-05 | 北京交通大学 | Peg-pole-prestress supporting system and construction method thereof |
| CN201152176Y (en) * | 2007-10-29 | 2008-11-19 | 中铁二院工程集团有限责任公司 | Existed electrified railroad tunnel lengthened section structure |
| CN101260806A (en) * | 2008-04-24 | 2008-09-10 | 重庆交通科研设计院 | Preposition type opening construction method |
| CN201650302U (en) * | 2010-03-25 | 2010-11-24 | 中铁二院工程集团有限责任公司 | Eiking clear hole structure of existing high speed railway tunnel |
| CN101864960A (en) * | 2010-05-17 | 2010-10-20 | 中铁二十局集团有限公司 | Carst region double-arch road tunnel construction method |
| CN202039859U (en) * | 2011-02-24 | 2011-11-16 | 湖南省交通规划勘察设计院 | Door type composite pipe shed cover arch structure for tunnel portal |
Non-Patent Citations (5)
| Title |
|---|
| JP昭55-165317A 1980.12.23 |
| JP特开昭52-7138A 1977.01.20 |
| 何毅等.隧道洞口段过岩堆体的防坍技术.《西部探矿工程》.2008,(第1期), * |
| 杨斌.大管棚预注浆超前支护技术在风霜岭隧道洞口施工中的应用.《福建建设科技》.2005,(第2期),第34-35页. * |
| 陈学雄.曹源隧道出口段加固处理.《福建建材》.2007,(第5期),第67-39页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102071948A (en) | 2011-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071948B (en) | Door type composite pipe roof umbrella arch structure for tunnel opening and construction method thereof | |
| CN102071949B (en) | Pile type composite tube roofing cover arch structure for tunnel portal and construction method thereof | |
| CN102071947B (en) | Construction method for soft surrounding rock section of large-span tunnel portal | |
| CN108005664A (en) | A kind of hole pile construction method of platform structure | |
| CN105041349A (en) | Underground excavation construction method for expanded excavation of station on basis of metro regional shield tunnel | |
| CN102444405B (en) | Anti-slide pile and frame arch combined structure and construction method | |
| CN104989425B (en) | A kind of tunneling is into hole supporting construction and its method for protecting support | |
| CN101769154A (en) | Excavation supporting method for tunnel construction | |
| CN104763433A (en) | Underground excavation construction method of large-span subway station in flexible-top and hard-bottom stratum | |
| CN105064397A (en) | Open excavation construction method for expanding excavation of station on metro interzone shield tunnel foundation | |
| CN102606168B (en) | Construction method for preventing settlement and deformation of shallow-buried-excavation tunnel in excavation | |
| CN106948823A (en) | Combine the construction method applied with mining sectbn in station air channel | |
| CN104632227B (en) | Subway station excavation technology of single-layer beam arch structure | |
| CN107905794B (en) | It is a kind of retain tunnel part section of jurisdiction subway station widen method | |
| CN109853399B (en) | Large-section inclined tunnel type arch support structure for arch bridge and construction method thereof | |
| CN104453948B (en) | A kind of construction technology of big cross section bored tunnel vertical prestressing steel pipe support | |
| CN103898916A (en) | Mini-pile combined support structure and construction method thereof | |
| CN108843341A (en) | A kind of the cut-and-cover tunnel structure and its construction method of mixture of piles and concrete wall formula | |
| CN107740446A (en) | Combined construction method of the passive supplement in existing building basis with underpining system in hole | |
| CN103233753A (en) | Pipe curtain shed frame method used for full-face excavation of construction of shallow-buried large-scale subsurface structure | |
| CN205077499U (en) | Double row pile supporting construction with transverse connection component | |
| CN201982105U (en) | Pile-type composite pipe-shed cover-arch structure for tunnel portal | |
| CN114352292A (en) | Shallow-buried bias-pressure multi-arch tunnel construction method for weathering phyllite stratum | |
| CN109538236A (en) | A kind of tunnel structure and tunnel construction method | |
| CN202039859U (en) | Door type composite pipe shed cover arch structure for tunnel portal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 410008 No. two, Furong North Road, Changsha, Hunan, 158 Patentee after: Hunan Traffic Planning Survey and Design Institute Co Ltd Address before: 410008 No. two, Furong North Road, Changsha, Hunan, 158 Patentee before: Hunan Communication Planning and Prospecting Design Academy |
|
| CP01 | Change in the name or title of a patent holder |