CN106194255A - Tunnel waterproof and water drainage system and method for construction thereof - Google Patents
Tunnel waterproof and water drainage system and method for construction thereof Download PDFInfo
- Publication number
- CN106194255A CN106194255A CN201610821516.1A CN201610821516A CN106194255A CN 106194255 A CN106194255 A CN 106194255A CN 201610821516 A CN201610821516 A CN 201610821516A CN 106194255 A CN106194255 A CN 106194255A
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- tunnel
- drainage
- ring direction
- sealing rod
- direction drainpipe
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000004567 concrete Substances 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 21
- 239000011380 pervious concrete Substances 0.000 claims abstract description 17
- 239000011378 shotcrete Substances 0.000 claims abstract description 17
- 238000004078 waterproofing Methods 0.000 claims abstract description 5
- 239000007921 spray Substances 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of tunnel waterproof and water drainage system and method for construction thereof, including the drainage blanket between Tunnel and secondary lining, transition zone and waterproof layer, transverse drain and central drain etc..Wherein, drainage blanket includes permeable gunite concrete, longitudinal drainage pipe, ring direction drainpipe and sealing rod, longitudinal drainage pipe, ring direction drainpipe and sealing rod are fixed on preliminary bracing outer surface, and preliminary bracing is carried out disposal precinct, and pervious concrete is injected in each drainage.It is connected by transverse drain between ring direction drainpipe with central drainage pipe, ultimately forms tunnel drainage system.Transition zone and waterproof layer are made up of the gunite concrete of different gradation, for tunnel water proofing.The present invention utilizes drain pipe and permeable gunite concrete to form tunnel solid drainage channel, and tunnel drainage is effective；Tunnel waterproof and water drainage system is integrated with tunnel structure, and long service performance is good.
Description
Technical field
The present invention relates to a kind of tunnel structure, be specifically related to a kind of tunnel waterproof and water drainage system and method for construction thereof.
Background technology
Percolating water is the modal disease of operation tunnel, and it is aging that Tunnel Infiltration water not only speeds up tunnel structure, shortens tunnel
The service life of structure, also add tunnel operation maintenance cost, and threatens the traffic safety in tunnel.Especially at cold district,
Tunnel Water Leakage also can cause freezing damage in tunnel, aggravation tunnel structure to destroy；And cause Tunnel wall hanging ice, icy on road, seriously
Threaten tunnel traffic safety.Must fundamentally solve treatment technology for tunnel seepage water problems.
Regulation in " vcehicular tunnel design specification ": " when tunnel uses composite lining, supporting in the early stage and secondary lining it
Between splash guard and non-woven fabrics should be set, splash guard should use be prone to welding waterproof roll, thickness be not less than 1.0mm；Along lining cutting
Hoop should arrange water guide blind pipe behind, and its longitudinal pitch is not more than 20m ".Splash guard is the important defence line of tunnel water proofing, once prevents
Water plate destroys, and subsoil water will transmit through splash guard, flows out along construction joint of tunnel, movement joint and structural cracks, forms tunnel
Percolating water.Existing anchor bar of waterproof plate in tunnels is the most destroyed in construction and operation, and the reason causing splash guard to destroy is as follows: 1. tunnel
Road preliminary bracing is gunite concrete, and gunite concrete surface ridge often occurs or has termination point of anchor rod exposure, can puncture anti-
Water plate；2. often there is the changing of the relative positions in Tunnel and secondary lining, often results between preliminary bracing and two lining lining cutting
Splash guard tear.The most adjacent splash guard uses hot-melt adhesive paste, connects effect by construction environment, construction level and management level
Deng multifactor impact, welding position often occurs that not prison welding is leaned on, and the middle generation changing of the relative positions, forms drainage channel under arms.4. tunnel is worked as
During road breaking out of fire, water-proof sheet material easily softens inefficacy.5. water-proof sheet material service life is about 60 years, and tunnel runs and year is limited to 100
Year, splash guard cannot meet tunnel long service requirement.Based on above-mentioned background, research and development novel tunnel guarded drainage technology just becomes urgently
Technical problem to be solved.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provide a kind of tunnel waterproof and water drainage system and
Its method of construction.
Technical scheme: for solving above-mentioned technical problem, the tunnel waterproof and water drainage system of present invention offer and method of construction thereof, bag
Include the drainage blanket between Tunnel and secondary lining, transition zone and waterproof layer, transverse drain and Central Drainage
Pipe (or gutter) etc..Described drainage blanket includes permeable gunite concrete, longitudinal drainage pipe, ring direction drainpipe and sealing rod,
Described longitudinal drainage pipe, ring direction drainpipe and sealing rod are fixed on preliminary bracing outer surface, and preliminary bracing is carried out draining
Subregion, described pervious concrete is injected in each drainage, and the coarse aggregate of pervious concrete is porous lightweight aggregate.
Specifically, ring direction drainpipe and sealing rod in described drainage blanket are laid at equal intervals in tunnel axis direction, sealing
The installation position of bar aligns with Second Lining Construction seam, and ring direction drainpipe is laid in the centre of adjacent sealing rod；Ring direction drainpipe
Being connected by longitudinal drainage pipe with between sealing rod, longitudinal drainage pipe is arranged in " V " shape in ring direction drainpipe both sides, is laid in respectively
At arch, tunnel, abutment wall and arch springing；Ring direction drainpipe is directly connected by transverse drain with Central Drainage (or gutter) pipe
Connect；Longitudinal drainage pipe and ring direction drainpipe are draining semicanal.
Specifically, heating plant is installed in described ring direction drainpipe or both sides, and described heating plant can be according to antifreeze need
Change time realistic.
Specifically, described transition zone is the thickness specified density concrete being injected on drainage blanket.
Specifically, described waterproof layer is the impervious concrete being injected on transition zone.
The present invention proposes the method for construction of above-mentioned tunnel waterproof and water drainage system simultaneously, comprises the following steps:
Step 1, lays ring direction drainpipe, longitudinal drainage pipe and sealing rod on Tunnel surface or country rock surface,
Sealing rod is corresponding with the construction joint of secondary lining, and ring direction drainpipe is then positioned at the centre of adjacent sealing rod.Sealing rod is arranged with hoop
Water pipe is connected by longitudinal drainage pipe, and longitudinal drainage pipe is arranged in ring direction drainpipe lateral symmetry, arranges in V-shape, and longitudinally row
The gradient of water pipe is not less than 2%.Longitudinal drainage pipe is laid at arch, tunnel, abutment wall and arch springing respectively, with sealing rod and hoop
Drain pipe carries out disposal precinct to Tunnel outer surface；
Step 2, connects ring direction drainpipe, transverse drain and central drain (or gutter)；
Step 3, sprays pervious concrete in each disposal precinct, and the thickness of pervious concrete is less than longitudinal drainage semicanal
Radius；
Step 4, sprays thickness specified density concrete at drainage blanket outer surface, as transition zone；
Step 5, sprays certain thickness impervious concrete at transition zone outer surface, as waterproof layer；
Step 6, seals the waterstop at sealing rod and Second Lining Construction seam and pastes, carry out water-proofing treatment；
Step 7, pours into a mould two lining concrete outside waterproof layer.The technical essential of said structure and method of construction is as follows:
1. sealing rod, ring direction drainpipe and longitudinal drainage pipe are laid on Tunnel surface or country rock surface, longitudinally
Drain pipe should be tightly connected with sealing rod, and longitudinal drainage pipe top half has osculum, and the latter half is then without osculum；Longitudinally row
Water pipe is arranged in ring direction drainpipe lateral symmetry, arranges in V-shape, and the gradient of longitudinal drainage pipe is not less than 2%.Sealing rod and
Longitudinal drainage pipe carries out disposal precinct to preliminary bracing surface, and each disposal precinct answers individual drainage.
2. ring direction drainpipe, transverse drain and central drain (or gutter) are connected, in order to ensure waterproof effect,
Every plate secondary lining individual drainage, the subsoil water in ring direction drainpipe is in line to central drain (or row by transverse drain
Waterside ditch)；
3. spraying pervious concrete in each disposal precinct, the thickness of pervious concrete is less than the half of longitudinal drainage semicanal
Footpath；
4. above pervious concrete, spray thickness specified density concrete, as transition zone, work progress should control
Expulsion pressure and aggregate size, draining concrete permeable hole plug in prevention drainage blanket；
5. spraying certain thickness impervious concrete above transition zone, as waterproof layer, waterproof layer should cover bag comprehensively
Wrap up in longitudinal drainage pipe；
6. the waterstop at sealing rod and Second Lining Construction seam is sealed and paste, it is necessary to carry out water-proofing treatment；
7. construction secondary lining concrete.
Inventive principle: lay ring direction drainpipe, longitudinal drainage pipe and sealing rod, shape at Tunnel or country rock surface
Become unobstructed drainage network, utilize longitudinal drainage pipe and sealing rod that Tunnel surface carries out disposal precinct, each draining
Subsoil water in subregion is without hydraulic connection.Pervious concrete is sprayed, for collecting enclosing in each drainage in disposal precinct
Rock crevice water, and be emitted in circle draining pipeline.Drainage network and permeable gunite concrete form the drainage channel of solid, ring
Subsoil water in drainage pipeline is immediately discharged in central drain (or gutter) by transverse drain.In order to prevent
Water gunite concrete is blocked, sprays thickness specified density concrete, as transition zone above pervious concrete；At transition zone
Top injection impervious concrete, as waterproof layer；Drainage channel, transition zone and waterproof layer is utilized to define tunnel water handling system
System, this system utilizes the infiltration diversity of different compound gunite concrete, and fixes a drainpipe in gunite concrete structure,
Thus formed tunnel injection xoncrete structure from waterproof and water drainage system, tunnel shotcrete layer is i.e. supporting member, is again anti-row
Water-bound.At cold district, ring direction drainpipe planted agent installs heater, and the light bone of porous selected by the coarse aggregate of pervious concrete
Material, pre-waterproof and water drainage system freezes.
Beneficial effect: the present invention utilizes drainage pipeline, sealing rod and permeable gunite concrete to realize the draining of subregion, tunnel,
Drainage effect is good, it is simple to operation maintenance；Ring direction drainpipe directly connects central drain by transverse drain, it is ensured that every plate two
Subsoil water in lining is directly discharged in central drain (or gutter), and every plate two lining is independent drainage cell, row
Water is effective, facilitates seepage water source to search, facilitates operation maintenance；The infiltration of the different compound gunite concrete of this system utilization is poor
The opposite sex, forms permeable shotcrete layer and antiseepage shotcrete layer, it is achieved drainage system and tunnel structure integration, for a long time
Military service performance is good, and service life is identical with tunnel lining structure；This drainage system is concrete material, and tunnel fire hazard does not interferes with
Its military service performance.Heater is installed in ring direction drainpipe, it is ensured that under cold climate conditions, drainage system is unobstructed does not freezes；
Utilize porous lightweight aggregate as coarse aggregate, the frost-heave force that the subsoil water in pervious concrete freezes to produce can be eliminated.
Except invention described above solves the technical problem that, constitutes the technical characteristic of technical scheme and by these skills
Outside the advantage that the technical characteristic of art scheme is brought, the tunnel waterproof and water drainage system of the present invention and method of construction thereof can solve its
The advantage that the other technologies feature comprised in he technical problem, technical scheme and these technical characteristics bring, will be in conjunction with accompanying drawing
It is described in more detail.
Accompanying drawing explanation
Fig. 1 is Fig. 1 tunnel cross section figure of the embodiment of the present invention
Fig. 2 is the drainage blanket plane outspread drawing in Fig. 1
In figure: 1. preliminary bracing；2. drainage blanket；3. transition zone；4. waterproof layer；5. secondary lining；6. longitudinal drainage pipe；7.
Transverse drain；8. central drain；9. ring direction drainpipe；10. sealing rod；11. permeable gunite concretes.
Detailed description of the invention
Embodiment:
The tunnel waterproof and water drainage system of the present embodiment as it is shown in figure 1, set gradually in including tunnel preliminary bracing 1, draining
Layer 2, transition zone 3, waterproof layer 4 and secondary lining 5, and the transverse drain 7 of tunnel bottom and central drain 8.
Mix as in figure 2 it is shown, drainage blanket 2 is internal containing longitudinal drainage pipe 6, ring direction drainpipe 9, sealing rod 10 and permeable injection
Solidifying soil 11.Longitudinal drainage pipe 6 is connected with ring direction drainpipe 9 and sealing rod 10, transverse drain 7 connect ring direction drainpipe 9 and in
Centre drain pipe 8.
It is as follows that step is implemented in the construction of said structure:
1. cleaning Tunnel surface or country rock surface, lays sealing rod 10, ring direction drainpipe 9 and longitudinal drainage pipe
6.Connect longitudinal drainage pipe 6, ring direction drainpipe 9 and sealing rod 10；
2. ring direction drainpipe 9, transverse drain 7 and central drain 8 are connected；
3. in the drainage that longitudinal drainage pipe 6 and sealing rod 10 surround, spray pervious concrete 11；
4. thickness specified density concrete is sprayed at drainage blanket 2 outer surface, as transition zone 3；
5. certain thickness impervious concrete is sprayed at transition zone 3 outer surface, as waterproof layer 4；
6. outside waterproof layer, pour into a mould secondary lining 5 concrete.
Above in association with accompanying drawing, embodiments of the present invention are described in detail, but the present invention is not limited to described reality
Execute mode.For those of ordinary skill in the art, in the range of the principle and technological thought of the present invention, these are implemented
Mode carries out multiple change, revises, replaces and deformation still falls within protection scope of the present invention.
Claims (6)
1. a tunnel waterproof and water drainage system, including the drainage blanket between Tunnel and secondary lining, transition zone and
Waterproof layer, it is characterised in that: described drainage blanket includes permeable gunite concrete, longitudinal drainage pipe, ring direction drainpipe and sealing rod,
Described longitudinal drainage pipe, ring direction drainpipe and sealing rod are fixed on preliminary bracing outer surface, and preliminary bracing is carried out draining
Subregion, described pervious concrete is injected in each drainage, and the coarse aggregate of pervious concrete is porous lightweight aggregate.
Tunnel waterproof and water drainage system the most according to claim 1, it is characterised in that: the ring direction drainpipe in described drainage blanket
Laying at equal intervals in tunnel axis direction with sealing rod, the installation position of sealing rod aligns with Second Lining Construction seam, and hoop is arranged
Water pipe is laid in the centre of adjacent sealing rod；It is connected by longitudinal drainage pipe between ring direction drainpipe with sealing rod, longitudinal drainage pipe
In the V-shaped layout in ring direction drainpipe both sides, longitudinal drainage pipe is laid at arch, tunnel, abutment wall and arch springing；Ring direction drainpipe with
Central drain or gutter are directly connected to by transverse drain；Longitudinal drainage pipe and ring direction drainpipe are draining half
Pipe.
Tunnel waterproof and water drainage system the most according to claim 2, it is characterised in that: in described ring direction drainpipe or both sides peace
Equipped with heating plant.
Tunnel waterproof and water drainage system the most according to claim 1, it is characterised in that: described transition zone is to be injected on drainage blanket
Thickness specified density concrete.
Tunnel waterproof and water drainage system the most according to claim 1, it is characterised in that: described waterproof layer is to be injected on transition zone
Impervious concrete.
The method of construction of tunnel waterproof and water drainage system the most according to claim 1, it is characterised in that comprise the following steps:
Step 1, lays ring direction drainpipe, longitudinal drainage pipe and sealing rod, sealing on Tunnel surface or country rock surface
Bar aligns with the construction joint of secondary lining, and ring direction drainpipe is then positioned at the centre of adjacent sealing rod；Sealing rod and ring direction drainpipe
Being connected by longitudinal drainage pipe, longitudinal drainage pipe is arranged in ring direction drainpipe lateral symmetry, arranges in V-shape, and longitudinal drainage pipe
The gradient be not less than 2%, longitudinal drainage pipe is laid at arch, tunnel, abutment wall and arch springing respectively, with sealing rod and ring direction drainpipe
Tunnel outer surface is carried out disposal precinct；
Step 2, connects ring direction drainpipe, transverse drain and central drain or gutter；
Step 3, sprays pervious concrete in each disposal precinct, and the thickness of pervious concrete is less than the half of longitudinal drainage semicanal
Footpath；
Step 4, sprays thickness specified density concrete at drainage blanket outer surface, as transition zone；
Step 5, sprays certain thickness impervious concrete at transition zone outer surface, as waterproof layer；
Step 6, seals the waterstop at sealing rod and Second Lining Construction seam and pastes, carry out water-proofing treatment；
Step 7, pours into a mould two lining concrete outside waterproof layer.
Applications Claiming Priority (2)
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| CN201610785329 | 2016-08-31 | ||
| CN2016107853292 | 2016-08-31 |
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| CN106194255A true CN106194255A (en) | 2016-12-07 |
| CN106194255B CN106194255B (en) | 2017-11-03 |
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| CN106869998A (en) * | 2017-03-09 | 2017-06-20 | 同济大学 | Hydraulic pressure fractured zones tunnel high carries the emergent intelligent drainage system of clearing function |
| CN107100671A (en) * | 2017-05-31 | 2017-08-29 | 中铁七局集团第三工程有限公司 | A kind of pressure surface shape of tunnel rich water country rock, which drops down, draws drainage mechanism in adfluxion |
| CN107227974A (en) * | 2017-06-20 | 2017-10-03 | 中铁十局集团第四工程有限公司 | A kind of tunnel-liner discharge structure and water discharge method |
| CN107780949A (en) * | 2017-10-13 | 2018-03-09 | 北京工业大学 | A kind of steel FRP complex waves card tunnel support method |
| CN107916945A (en) * | 2017-12-07 | 2018-04-17 | 中铁岩锋成都科技有限公司 | Using the waterproof spray-up structure and its construction method of impervious gunite concrete |
| CN108222979A (en) * | 2017-12-29 | 2018-06-29 | 中铁二局第工程有限公司 | Rich water karst waterproof and Drainage Construction of Tunnel method |
| CN108661674A (en) * | 2018-07-19 | 2018-10-16 | 中国铁路设计集团有限公司 | A kind of high hydraulic pressure tunnel sluicing voltage-dropping type is pre-buried to safeguard grouting device |
| CN109026144A (en) * | 2018-07-27 | 2018-12-18 | 北京交通大学 | A kind of seabed tunnel active control type guarded drainage System Design method and system |
| CN109281334A (en) * | 2018-10-31 | 2019-01-29 | 中建科技有限公司 | Underground pipe gallery waterproof construction |
| CN109296389A (en) * | 2018-12-10 | 2019-02-01 | 潘晓东 | A kind of freeway tunnel jet printing type guarded drainage construction and method |
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| CN110410144A (en) * | 2019-07-18 | 2019-11-05 | 中交第二公路勘察设计研究院有限公司 | A kind of waterproof/drainage structure of shield tunnel |
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| WO2019237908A1 (en) * | 2018-06-12 | 2019-12-19 | 济南城建集团有限公司 | Blocking and drainage combined treatment method for water leakage at construction joint of secondary lining of tunnel |
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