CN105840211A - Pi-shaped plate and inverted arch combined tunnel bottom lining structure - Google Patents
Pi-shaped plate and inverted arch combined tunnel bottom lining structure Download PDFInfo
- Publication number
- CN105840211A CN105840211A CN201610410042.1A CN201610410042A CN105840211A CN 105840211 A CN105840211 A CN 105840211A CN 201610410042 A CN201610410042 A CN 201610410042A CN 105840211 A CN105840211 A CN 105840211A
- Authority
- CN
- China
- Prior art keywords
- inverted arch
- arch
- tunnel
- lining
- shape plate
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
Abstract
The invention relates to a pi-shaped plate and inverted arch combined tunnel bottom lining structure. By transforming the traditional tunnel lining tunnel bottom structure style, the stress performance of a lining structure, especially a tunnel bottom structure, under the action of high water pressure or high ground stress is improved, and meanwhile, a drainage system in a tunnel is optimized, the drainage capacity of the tunnel is increased, and the water disaster risk of rainfall flood seasons during operation is reduced by combining the lining tunnel bottom structure. The pi-shaped plate and inverted arch combined tunnel bottom lining structure comprises an initial support structure, a secondary lining structure and a waterproofing and drainage system, wherein the secondary lining structure consists of a secondary lining arch wall segment and a secondary lining tunnel bottom structure, and the secondary lining tunnel bottom structure consists of an inverted arch and a pi-shaped plate arranged on the inverted arch; the pi-shaped plate consists of a top plate, a left-side vertical plate and a right-side vertical plate, and the upper ends of the left-side vertical plate and the right-side vertical plate and the top plate are fixedly combined together; the lower ends of the left-side vertical plate and the right-side vertical plate and the inverted arch are fixedly combined, and the two transversal ends of the top plate and the two ends of the inverted arch are fixedly combined; a corridor formed among the left-side vertical plate, the right-side vertical plate, the top plate and the secondary lining inverted arch can be used as a longitudinal drainage channel of the tunnel.
Description
Technical field
The present invention relates to tunnel lining structure, grow or by seasonal effect particularly to a kind of subsoil water
Greatly, tunnel bottom water pressure or crustal stress higher in the case of tunnel lining structure.
Background technology
Enter 21st century, railway construction in China high speed development, the above high standard of speed per hour 200km
Quasi-double track railway is built more and more, especially in western mountainous areas, circuit show line is big by sweep,
The restriction of the many factors such as shape complex geologic conditions, tunnel scale is increasing, karst of on the one hand growing up
Rich water tunnel gets more and more, and on the other hand, high-ground stress tunnel gets more and more.
In recent years, there occurs some nothings during suitable ten thousand, Shanghai elder brother, the expensive Railway Tunnel operation such as extensively
The water damage event such as the deformation of tiny fragments of stone, coal, etc. railway roadbed, inverted arch protuberance, lining cutting percolating water, cause Railway Design, construction,
Build and the great attention of operation each side.
Tradition double track tunnel lining cutting typically uses the liner structure form of bent wall band inverted arch, such as Fig. 4 institute
Show.Using Concrete Filled as railway roadbed basis on inverted arch, in construction, inverted arch is filled with inverted arch and is separately watered
Build.Arranging Central drain+bilateral ditch in tunnel, Central drain is placed in the obturator on inverted arch.
Underground water discharge path is: country rock → preliminary bracing → draining blind pipe → lateral sulcus → transverse drain → in
Edema with the heart involved ditch, the i.e. water of tunnel structure periphery enter tunnel by preliminary bracing infiltration via draining blind pipe ejectment
Central drain within road structural body, outside final discharge hole.The defect of conventional drainage systems maximum exists
In: within Central drain is located at tunnel structure, main ejectment main ejectment arch wall scope circumferentially under
Water, the hydrops below tunnel inverted arch cannot effectively ejectment.Especially in the close region of ground hydraulic connection,
Under continuous rainfall or rainstorm weather, because of groundwater run off abruptly increase, traditional drainage system often cannot and
Time ejectment in the gutter in tunnel structure body, thus cause level of ground water drastically to raise.At Gao Shui
Under pressure effect, cause inverted arch at the bottom of tunnel or inverted arch to fill protuberance, thus destroy ballast bed structure.
Additionally, six being stained with, the rail segment high-ground stress tunnel such as Yun Gui, Cheng Lan is being built and was being runed
Journey all occurs the disasters such as inverted arch protuberance cracking, in order to solve this problem, through frequently with circle in design
On the one hand shape or subcircular liner structure (such as Fig. 5), cause that inverted arch difficulty of construction is big, excavated volume is big；
On the other hand, on inverted arch, Concrete Filled amount is greatly increased, and causes waste.
Therefore, no matter for solving the high-pressure water-enriched problem in tunnel, karst area, or high-ground stress tunnel is faced upward
Arch protuberance strain cracking problem, optimizes lining cutting tunnel bottom structure form, during reducing tunnel construction and operation
Calamity source be instantly in the urgent need to.
Summary of the invention
The technical problem to be solved is to provide π shape plate and builds structure with inverted arch combination type tunnel end liner
Make, by conventional tunnel lining cutting tunnel bottom structure form is transformed, improve at the bottom of the special tunnel of liner structure
Structure stress performance under high hydraulic pressure or high-ground stress effect, in combination with constitution optimization at the bottom of lining cutting tunnel
Hole inner water drainage system, increasing tunnel drainage ability, reduce rain flood water damage in season risk during operation.
The technical solution adopted for the present invention to solve the technical problems is as follows:
Lining structure at the bottom of the π shape plate of the present invention and inverted arch combination type tunnel, including preliminary bracing structure, two
Secondary liner structure and waterproof and water drainage system, secondary liner structure is by secondary lining arch wall section, secondary lining tunnel
Bottom structure is constituted, and it is characterized in that: described secondary lining tunnel bottom structure is by setting on inverted arch and inverted arch
π shape plate is constituted, and described π shape plate is made up of top board, left side riser and right side riser, left side riser,
Right side riser upper end and top board consolidation is integrated, lower end and inverted arch consolidation, the transverse ends of top board with face upward
Arch two ends consolidation, the exterior feature formed between left side riser, right side riser, top board and secondary lining inverted arch
Road can be as tunnel longitudinal drainage passage.
The invention has the beneficial effects as follows, use lining structure at the bottom of π shape plate and inverted arch combination type tunnel to replace and pass
The circle used under system high-ground stress or high water pressures or subcircular lining cutting: first, at the bottom of tunnel, excavation is made
Industry is more convenient, and earthwork reduces；Secondly, change the obturator on tradition inverted arch into π shape plate structure,
Both saved concrete masonry, added again tunnel base space, pipe gallery can be set, for gutter,
Cable ducts etc. are arranged；π shape plate and inverted arch combination type tunnel bottom structure, bending rigidity is greatly increased, significantly
Increase tunnel bottom structure bearing capacity；Can realize liner structure " external draining ", arch wall secondary lining is behind
Subsoil water does not introduce tunnel lateral sulcus, and is introduced directly into the collector drain between π shape plate and inverted arch, effectively keeps away
Exempt from rain flood subsoil water in season excessive lateral sulcus drainability to pour in railway roadbed not；Simultaneously because gutter
It is positioned under base plate, can guarantee that the smooth and easy excretion of subsoil water is avoided causing bottom slab crack to swell all the time.
Accompanying drawing explanation
This specification includes following five width accompanying drawings:
Fig. 1 is the section structure schematic diagram of lining structure at the bottom of π shape plate of the present invention and inverted arch combination type tunnel；
Fig. 2 is the enlarged drawing of A local in Fig. 1；
Fig. 3 is the enlarged drawing of B local in Fig. 1；
Fig. 4 is the bent wall band inverted arch liner structure schematic diagram of tradition；
Fig. 5 is subcircular liner structure schematic diagram under high-ground stress or high hydraulic pressure operating mode in traditional design.
Component shown in figure, toponym and corresponding labelling: wide road C；Preliminary bracing structure arch wall
Section 10, arch wall shotcrete layer 10a, arch wall steelframe 10b, arch wall system anchor bolt 10c；Initial stage
Supporting construction inverted arch section 11, inverted arch shotcrete layer 11a, inverted arch steelframe 11b；Waterproof and water drainage system
20, non-woven geotextile 20a, circle draining blind pipe 20b, splash guard 20c；Secondary lining arch wall section
30, inverted arch 31；Top board 40, left side riser 41, right side riser 42.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
With reference to lining structure at the bottom of Fig. 1, the π shape plate of the present invention and inverted arch combination type tunnel, including preliminary bracing
Structure, secondary liner structure and waterproof and water drainage system 20, secondary liner structure is by secondary lining arch wall section
30, secondary lining tunnel bottom structure is constituted.Described secondary lining tunnel bottom structure is by inverted arch 31 and inverted arch 31
On arrange π shape plate constitute, described π shape plate is by top board 40, left side riser 41 and right side riser
42 are constituted, and left side riser 41, right side riser 42 upper end and top board 40 consolidation are integrated, lower end and
Inverted arch 31 consolidates, and the transverse ends of top board 40 and inverted arch 31 two ends consolidate, left side riser 41,
Right side riser 42, to form wide road C between top board 40 and inverted arch 31 be tunnel longitudinal drainage passage.
Bearing of trend interval, described top board 40 ascender line road arranges the inspection well head communicated with wide road C.
With reference to Fig. 1, the present invention changes the obturator on tradition inverted arch into π shape plate structure, both saved
Concrete masonry, adds again tunnel base space, can arrange pipe gallery, for gutter, cable duct
Arrange.π shape plate and inverted arch combination type tunnel bottom structure, bending rigidity is greatly increased, and dramatically increases at the bottom of tunnel
Structural-load-carrying capacity.Can realize liner structure " external draining ", arch wall secondary lining subsoil water behind is not
Introduce tunnel lateral sulcus, and be introduced directly into the collector drain between π shape plate and inverted arch, be prevented effectively from rain flood season
Joint subsoil water excessive lateral sulcus drainability pours in railway roadbed not.Owing to gutter is positioned under base plate,
All the time can guarantee that the smooth and easy excretion of subsoil water is avoided causing bottom slab crack to swell.
With reference to 1 and Fig. 2, described waterproof and water drainage system 20 includes the non-woven geotextile that arch wall scope is laid
The splash guard 20c that 20a and arch wall scope are laid, and it is laid in nonwoven along interval, tunnel excavation direction
Circle draining blind pipe 20b between geotextiles 20a and splash guard 20c.Described circle draining blind pipe 20b
Two ends be introduced directly into wide road C along top board 40 lower edge.
With reference to Fig. 1, described preliminary bracing structure includes preliminary bracing structure arch wall section 10, preliminary bracing
Structure inverted arch section 11.With reference to Fig. 2, described arch wall preliminary bracing structure 10 includes covering arch wall country rock
Arch wall shotcrete layer 10a and along the arch wall system anchor bolt 10c of arch wall quincuncial arrangement, arch wall
Arch wall steelframe 10b is laid along interval, tunnel excavation direction in shotcrete layer 10a.Described arch wall sprays
Bar-mat reinforcement is added in penetrating concrete layer 10a.With reference to Fig. 3, described inverted arch preliminary bracing structure 11 is wrapped
The inverted arch shotcrete layer 11a, inverted arch shotcrete layer 11a that include covering inverted arch country rock are interior along tunnel
Inverted arch steelframe 11b is laid at interval, excavation direction, road.
The above lining structure at the bottom of π shape plate of the present invention and inverted arch combination type tunnel that simply explains through diagrams
Some principles, be not intended to be confined to the present invention shown in and described concrete structure and the scope of application
In, therefore every corresponding amendment being likely utilized and equivalent, belong to the present invention and applied for
The scope of the claims.
Claims (7)
1. lining structure at the bottom of π shape plate and inverted arch combination type tunnel, including preliminary bracing structure, secondary lining
Building structure and waterproof and water drainage system (20), secondary liner structure is by secondary lining arch wall section (30), secondary
Lining cutting tunnel bottom structure is constituted, and it is characterized in that: described secondary lining tunnel bottom structure by inverted arch (31) and is faced upward
The π shape plate arranged on arch (31) is constituted, and described π shape plate is by top board (40), left side riser (41)
Constitute with right side riser (42), left side riser (41), right side riser (42) upper end and top board (40)
Consolidation is integrated, and lower end consolidates with inverted arch (31), the transverse ends of top board (40) and inverted arch (31)
Two ends consolidate, at left side riser (41), right side riser (42), top board (40) and inverted arch (31)
Between to form wide road (C) be tunnel longitudinal drainage passage.
2. lining structure at the bottom of π shape plate as claimed in claim 1 and inverted arch combination type tunnel, its feature
It is: bearing of trend interval in described top board (40) ascender line road arranges the inspection communicated with wide road (C)
Well head.
3. lining structure at the bottom of π shape plate as claimed in claim 1 and inverted arch combination type tunnel, its feature
It is: described waterproof and water drainage system (20) includes non-woven geotextile (20a) and the arch that arch wall scope lays
The splash guard (20c) that wall scope is laid, and it is laid in non-woven geotextile along interval, tunnel excavation direction
(20a) the circle draining blind pipe 20b and between splash guard (20c).
4. lining structure at the bottom of π shape plate as claimed in claim 3 and inverted arch combination type tunnel, its feature
It is: the two ends of described circle draining blind pipe (20b) are introduced directly into wide road (C) along top board (40) lower edge.
5. lining structure at the bottom of π shape plate as claimed in claim 1 and inverted arch combination type tunnel, its feature
It is: described preliminary bracing structure includes that preliminary bracing structure arch wall section (10), preliminary bracing structure are faced upward
Arch section (11)；Described arch wall preliminary bracing structure (10) includes the arch wall injection covering arch wall country rock
Concrete layer (10a) and the arch wall system anchor bolt (10c) along arch wall quincuncial arrangement, arch wall sprays
Arch wall steelframe (10b) is laid along interval, tunnel excavation direction in concrete layer (10a).
6. lining structure at the bottom of π shape plate as claimed in claim 5 and inverted arch combination type tunnel, its feature
It is: in described arch wall shotcrete layer (10a), add bar-mat reinforcement.
7. lining structure at the bottom of π shape plate as claimed in claim 5 and inverted arch combination type tunnel, its feature
It is: described inverted arch preliminary bracing structure (11) includes covering the inverted arch shotcrete layer of inverted arch country rock
(11a), inverted arch steelframe is laid along interval, tunnel excavation direction in inverted arch shotcrete layer (11a)
(11b)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410042.1A CN105840211A (en) | 2016-06-12 | 2016-06-12 | Pi-shaped plate and inverted arch combined tunnel bottom lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610410042.1A CN105840211A (en) | 2016-06-12 | 2016-06-12 | Pi-shaped plate and inverted arch combined tunnel bottom lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840211A true CN105840211A (en) | 2016-08-10 |
Family
ID=56575798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610410042.1A Pending CN105840211A (en) | 2016-06-12 | 2016-06-12 | Pi-shaped plate and inverted arch combined tunnel bottom lining structure |
Country Status (1)
| Country | Link |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968712A (en) * | 2017-05-12 | 2017-07-21 | 西南交通大学 | Water rich strata tunnel bottom discharge structure and its construction method |
| CN107387117A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | A kind of prefabricated assembled tunnel structure in tunnel bottom and its construction method |
| CN107387119A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | Prefabricated assembled tunnel inverted arch, tunnel structure and its construction method |
| CN107524458A (en) * | 2017-08-30 | 2017-12-29 | 中铁二院工程集团有限责任公司 | A kind of tunnel lining structure with tunnel bottom deformation allowance |
| CN108222960A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The V-arrangement skewback floor type lining cutting of tunnel bottom setting drainage gallery and its drainage system construction |
| CN108222963A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The not contour longeron carrying stalk floor type lining cutting of tunnel bottom setting longitudinal direction collection drainage gallery and its drainage system construction |
| CN108316943A (en) * | 2018-02-11 | 2018-07-24 | 中铁二院工程集团有限责任公司 | A kind of device and its construction method preventing the deformation of non-fragment orbit tunnel bottom |
| CN109057826A (en) * | 2018-08-08 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of truss-like tunnel inverted arch liner structure |
| CN109763838A (en) * | 2019-03-13 | 2019-05-17 | 中铁第一勘察设计院集团有限公司 | Assembled inverted arch structure and its assembling method suitable for drill+blast tunnel |
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| CN201412160Y (en) * | 2009-06-02 | 2010-02-24 | 中铁第四勘察设计院集团有限公司 | Single-cave and double-line subway tunnel |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968712A (en) * | 2017-05-12 | 2017-07-21 | 西南交通大学 | Water rich strata tunnel bottom discharge structure and its construction method |
| CN107387117A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | A kind of prefabricated assembled tunnel structure in tunnel bottom and its construction method |
| CN107387119A (en) * | 2017-07-07 | 2017-11-24 | 中国铁道科学研究院铁道建筑研究所 | Prefabricated assembled tunnel inverted arch, tunnel structure and its construction method |
| CN107387117B (en) * | 2017-07-07 | 2023-12-19 | 中国铁道科学研究院铁道建筑研究所 | Prefabricated tunnel structure with tunnel bottom and construction method thereof |
| CN107524458B (en) * | 2017-08-30 | 2023-09-22 | 中铁二院工程集团有限责任公司 | Tunnel lining structure with tunnel bottom reserved deformation |
| CN107524458A (en) * | 2017-08-30 | 2017-12-29 | 中铁二院工程集团有限责任公司 | A kind of tunnel lining structure with tunnel bottom deformation allowance |
| CN108222960A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The V-arrangement skewback floor type lining cutting of tunnel bottom setting drainage gallery and its drainage system construction |
| CN108222963A (en) * | 2017-12-27 | 2018-06-29 | 中铁二院工程集团有限责任公司 | The not contour longeron carrying stalk floor type lining cutting of tunnel bottom setting longitudinal direction collection drainage gallery and its drainage system construction |
| CN108316943A (en) * | 2018-02-11 | 2018-07-24 | 中铁二院工程集团有限责任公司 | A kind of device and its construction method preventing the deformation of non-fragment orbit tunnel bottom |
| CN108316943B (en) * | 2018-02-11 | 2019-07-26 | 中铁二院工程集团有限责任公司 | A kind of construction method for the device preventing the deformation of non-fragment orbit tunnel bottom |
| CN109057826A (en) * | 2018-08-08 | 2018-12-21 | 中铁二院工程集团有限责任公司 | A kind of truss-like tunnel inverted arch liner structure |
| CN109763838B (en) * | 2019-03-13 | 2023-09-15 | 中铁第一勘察设计院集团有限公司 | Assembled inverted arch structure suitable for tunnel by drilling and blasting method and assembling method thereof |
| CN109763838A (en) * | 2019-03-13 | 2019-05-17 | 中铁第一勘察设计院集团有限公司 | Assembled inverted arch structure and its assembling method suitable for drill+blast tunnel |
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Application publication date: 20160810 |