CN108222975A - Big skewback floor type lining cutting and its drainage system construction - Google Patents
Big skewback floor type lining cutting and its drainage system construction Download PDFInfo
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- CN108222975A CN108222975A CN201711450500.5A CN201711450500A CN108222975A CN 108222975 A CN108222975 A CN 108222975A CN 201711450500 A CN201711450500 A CN 201711450500A CN 108222975 A CN108222975 A CN 108222975A
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- 238000010276 construction Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 238000010079 rubber tapping Methods 0.000 claims description 24
- 238000009412 basement excavation Methods 0.000 claims description 8
- 239000004746 geotextile Substances 0.000 claims description 6
- 239000011378 shotcrete Substances 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000011161 development Methods 0.000 abstract description 5
- 238000007667 floating Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 108091006146 Channels Proteins 0.000 description 27
- 239000010410 layer Substances 0.000 description 13
- 239000003673 groundwater Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 5
- 102000010637 Aquaporins Human genes 0.000 description 2
- 108010063290 Aquaporins Proteins 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 241001640558 Cotoneaster horizontalis Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008021 deposition 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
- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- 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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Big skewback floor type lining cutting and its drainage system construction, effect of the underground water to tunnel-liner bottom structure is even eliminated to reduce, karst or the regional tunnel inverted arch floating deformation of underground water development or tunnel bottom structure cracking destruction are effectively solved the problems, such as, to ensure the stabilization of constructing tunnel and operation and safety.The setting of two side bottom of arch wall secondary liner structure consolidates the big skewback that is integrated as bearing structure therewith, sets bottom plate between the big skewback in both sides, skewback big with side consolidates respectively at the bottom plate both ends.The bottom plate plate body central box construct arranged below extended along its longitudinal centre line, using its inner cavity as centralized drainage channel.Box construct is set under the big skewback in both sides, and longitudinally through inner cavity is used as substrate collecting channel, fixed setting hole medial sulcus on the big skewback in both sides.Drainage system includes arch wall range drainage system, tunnel bottom drainage system and tunnel inner water drainage system, arch wall range drainage system is connected with centralized drainage channel, tunnel bottom drainage system is connected with centralized drainage channel and substrate collecting channel, and tunnel inner water drainage system is connected with hole medial sulcus, centralized drainage channel.
Description
Technical field
The present invention relates to tunnel-liners and drainage system to construct, and more particularly to one kind applies to underground water development location or rock
The tunnel-liner in molten area and its waterproof and water drainage system construction.
Background technology
Come into 21st century, railway construction in China high speed development, speed per hour 200km more than high standard double track railways are built
It is more and more, it is especially more by big, the topographic and geologic complicated condition of sweep etc. in Southwest Mountainous Areas, karsts developing area, and circuit show line
The restriction of kind factor, Karst Tunnel scale increase sharply.Since karst and karst water development are with complexity, diversity and random
The features such as rule property, it is higher and higher that Karst Tunnel of growing up builds risk particularly operations risks.
In recent years, suitable ten thousand, had occurred during Shanghai elder brother, the expensive Railway Tunnels operation such as wide several ballastless track beds deformations,
The water damages event such as inverted arch and filling protuberance, causes Railway Design, construction, construction and the great attention for runing each side.Through investigating,
Both wired water damage was broadly divided into two classes：
(1) inverted arch filling, which is floated, deforms.The construction joint that the construction in layer of its performance predominantly tunnel bottom structure is brought is in hydraulic pressure
Deformation, expansion under effect.
1. code requirement inverted arch should be separated with inverted arch filling and be poured.This engineering method forms construction joint between inverted arch and filling,
But underground water penetrates into inverted arch by inverted arch circular construction joint and fills bottom, and about 3~4m heads can cause filling to be floated.
2. in practice of construction, to prevent railway roadbed construction surface from being destroyed by Construction traffic, inverted arch filling often uses placement layer by layer
Mode, inverted arch filling surface layer (or regulating course) thickness about 0.2~0.4m of placing before railway roadbed construction, it is only necessary to 0.5~1m
High head can cause to fill surface layer floating, and then railway roadbed is caused to deform.
3. for ballastless track bed to road bed board and inverted arch fill surface using the connectionless way of contact, there are construction interfaces, right
It is more notable in the sensibility of tunnel bottom infiltration, often also there is " gap " lifting phenomenon and wear phenomenon, under the action of water, disease
Evil feature is particularly evident.Its stiffness difference huge with tunnel structure, deformation and track structure are very poor to foundation deformation
Adaptability be further exacerbated by adverse effect and difficulty of governance of the tunnel bottom water damage to operation security.
(2) liner structure particularly inverted arch strain cracking.
1. limited by vertical, the circumferential blind pipe and abutment wall drain hole drainability that are set in tunnel, after work drainage system by
Physical (silt, fine grained deposition are silted up), chemical type block (soluble matter is precipitated, concrete and slurry reaction residue condense)
Etc. reasons will all cause impeded drainage, hydraulic pressure change dramatically leads to liner structure cracking failure.
2. the structures such as abutment wall longitudinal direction construction joint, circular construction joint, inverted arch bottom and waterproof weak link recurring structure deformation,
Cracking and waterproof failure；There is water spray, gushes silt etc. in local location.
3. level of ground water seasonal fluctuations cause lining cutting to bear " dynamic load " influence.In continuous rainfall or Severe rainstorm weather
Under the conditions of, level of ground water increases suddenly, and lining cutting bears higher hydraulic pressure.
The tunnel designed at present is largely to there is inverted arch lining cutting.By taking one-tunnel two-tracks tunnel as an example, drainage system is with " tunnel
Internal draining " is Main Patterns, and underground water discharge path is：Country rock → preliminary bracing → draining blind pipe → lateral sulcus → transverse drainage
Pipe → Central drain, the i.e. water on tunnel structure periphery are permeated by preliminary bracing enters tunnel structure sheet via draining blind pipe ejectment
Central drain within body, it is final to discharge outside hole.
Drainage system in tunnel body main drawback is that：
It is arranged on inside lining cutting agent structure 1. the pressure release point for having pressure underground water is respectively positioned on, lining cutting agent structure is caused to bear
Hydrostatic pressing or hydrodynamic range are larger.
2. Central drain (or lateral sulcus) is within tunnel structure, the periphery underground water of main ejectment arch wall range, tunnel
Ponding below inverted arch can not effective ejectment, once under continuous rainfall or rainstorm weather, under Local topography inverted arch crevice water or
Pipeline water because can not ejectment in time hydraulic pressure is caused drastically to increase.Under the effect of high hydraulic pressure, cause tunnel bottom inverted arch cracking failure.
3. tunnel is in underground water seasonal fluctuation zone etc. and the close region of extraneous hydraulic connection, in continuous rainfall or heavy rain
It under weather, because of groundwater run off abruptly increase, is limited by abutment wall sluicing pore size and spacing, it is difficult in time by its ejectment to tunnel structure body
In interior gutter, drastically increased so as to cause level of ground water.Under the effect of high hydraulic pressure, Lining cracks is caused to destroy.
4. being needed by ballast bed structure, hole auxiliary structures and tunnel cross-section engineering economy being restricted, consider that construction is difficult
The cross-section of river degree of freedom of easy degree, hole medial sulcus or Central drain is little, and discharge capacity is limited, and often causes water damage in hole.
5. since tunnel bottom is arc-shaped, excavate that control is more difficult, and it is big that tunnel bottom void slag cleans out difficulty completely, during operation
Due to tunnel bottom underground water can not ejectment, Train induced load repeated action in addition easily causes tunnel bottom the disasters such as to rise soil.
Therefore, optimize liner structure and drainage system, ensure that draining is unobstructed, reduce and even eliminate tunnel bottom hydraulic pressure, become drop
Low karst area tunnel water damage risk, ensure operation security there is an urgent need to.
Invention content
There is provided a kind of big skewback floor type lining cutting and its drainage systems to construct for the technical problems to be solved by the invention,
Effect of the underground water to tunnel-liner bottom structure is even eliminated to reduce, effectively solves karst or the regional tunnel of underground water development
The problem of deformation of inverted arch floating or tunnel bottom structure cracking destruction, to ensure the stabilization of constructing tunnel and operation and safety.
The technical solution adopted by the present invention to solve the technical problems is as follows：
The big skewback floor type lining cutting of the present invention and its drainage system construction, including arch wall preliminary bracing structure, arch wall two
Secondary liner structure and arch wall range waterproof layer and including drainage system, it is characterized in that：The arch wall secondary liner structure both sides
Bottom setting consolidates the big skewback that is integrated as bearing structure therewith, sets bottom plate between the big skewback in both sides, which divides
Skewback consolidation not big with side；The bottom plate plate body central box construct arranged below extended along its longitudinal centre line, with
Its inner cavity is as centralized drainage channel；Box construct, longitudinally through inner cavity conduct are set under the big skewback in both sides
Substrate collecting channel；Hole medial sulcus is fixedly installed on the big skewback in both sides；The drainage system includes arch wall range draining system
System, tunnel bottom drainage system and tunnel inner water drainage system, arch wall range drainage system are connected with centralized drainage channel, tunnel bottom row
Water system is connected with centralized drainage channel and substrate collecting channel, and tunnel inner water drainage system is arranged with hole medial sulcus, centralized
Aquaporin is connected.
Tunnel bottom drainage system includes central tapping pipe and side tapping pipe, and central tapping pipe is along circuit extending direction interval
The both sides side wall upper part of central box construct is embedded in, side tapping pipe is embedded in box construct along circuit extending direction interval
Both sides side wall upper part, by central tapping pipe, side tapping pipe by tunnel bottom underground water ejectment to centralized drainage channel, substrate collection
In aquaporin.
The arch wall range drainage system includes circle draining blind pipe arch wall section and circle draining blind pipe tunnel bottom section, circumferential direction row
Water blind pipe arch wall section is laid in along tunnel excavation direction interval between non-woven geotextile and splash guard, and arch wall range underground water passes through ring
To draining blind pipe arch wall section collect after through circle draining blind pipe tunnel bottom section be discharged into centralized drainage channel.
The tunnel inner water drainage system includes being embedded in the big skewback in both sides and hole medial sulcus along circuit extending direction interval
Tapping pipe and connection Tunnel medial sulcus and centralized drainage channel lateral ties water pipe, along lateral ties water pipe
Road extending direction is arranged at intervals, and main body is embedded in bottom plate.
It beneficial effects of the present invention and is mainly reflected in following aspects：
1st, tunnel bottom uses floor structure, excavates operation and is more convenient, overcomes traditional lining types inverted arch foundation excavation curvature
The problems such as leading not easy to control.The liner structure that traditional tunnel bottom is inverted arch form is compared to, construction material is saved, effectively reduces work
Journey construction investment；
2nd, tunnel bottom both sides set bearing structure of the big skewback as arch wall secondary lining, can be effectively increased bearing capacity.Tunnel
Bottom uses floor structure, is not required to apply Concrete Filled body thereon, effectively prevents traditional bent wall band inverted arch lining cutting due to underground
Water, which enters to squeeze between inverted arch and inverted arch blind by inverted arch construction joint, destroys obturator, and track structure is caused to destroy；
3、；Arch wall range drainage system, tunnel bottom drainage system and tunnel inner water drainage system totally three sets of drainage systems are set, it can
By property higher, drainability is stronger, can effectively drainage arch wall range and tunnel bottom underground water, avoid traditional liner structure because of underground water
Lining cutting structure crack destroys after drainage difficulty or heavy rain season groundwater run off abruptly increase lead to inverted arch.
The present invention changes tunnel bottom structure stress form and row by being transformed to conventional tunnel lining cutting tunnel bottom structure form
Water system reduces and even eliminates effect of the underground water to tunnel-liner bottom structure, effectively solves karst or underground water developmentally
The problem of inverted arch floating deformation of area tunnel or tunnel bottom structure cracking destruction, to ensure the stabilization of constructing tunnel and operation and safety
Property.
Description of the drawings
This specification includes following nine width attached drawing：
Fig. 1 is the cross-section diagram of the big skewback floor type lining cutting of the present invention and its drainage system construction；
Fig. 2 is the enlarged drawing of A parts in Fig. 1；
Fig. 3 is that I-I lines cut open figure along Fig. 1；
Fig. 4 is the sectional view of II-II line along Fig. 3；
Fig. 5 is the sectional view of III-III line along Fig. 3；
Fig. 6 is the sectional view of IV-IV line along Fig. 3；
Fig. 7 is the sectional view of V-V line along Fig. 3；
Fig. 8 is the sectional view of VI-VI line along Fig. 7；
Fig. 9 is the sectional view of VII-VII line along Fig. 7.
Component, toponym and corresponding label are shown in figure：Arch wall preliminary bracing structure 10, arch wall shotcrete layer
10a, arch wall steelframe 10b, arch wall system anchor bolt 10c, arch wall range waterproof layer 20, geotextiles 20a, splash guard 20b, cover board 30,
Circle draining blind pipe arch wall section 31a, circle draining blind pipe tunnel bottom section 31b, tunnel bottom tapping pipe 32a, side tapping pipe 32b, tapping pipe
33a, lateral ties water pipe 33b, arch wall secondary liner structure 40, bottom plate 41, big skewback 42, central box construct 50, center
Integrate draining channel B, box construct 51, substrate collecting channel C, hole medial sulcus D, tunnel bottom horizontal check channel E, check well head F.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Referring to figs. 1 to Fig. 7, big skewback floor type lining cutting of the invention and its drainage system construction, including arch wall initial stage branch
Protection structure 10, arch wall secondary liner structure 40 and arch wall range waterproof layer 20 and including drainage system.The secondary lining of arch wall
It builds 40 liang of side bottom settings of structure and consolidates the big skewback 42 being integrated therewith as carrying basis, bearing capacity can be effectively increased.
Bottom plate 41 is set between the big skewback 42 in both sides, and skewback 42 big with side consolidates respectively at 41 both ends of bottom plate.It is not required to apply on bottom plate 41
Concrete Filled body effectively prevents traditional bent wall band inverted arch lining cutting since underground water by inverted arch construction joint enters inverted arch with facing upward
Extruding destroys obturator between encircleing blind, and track structure is caused to destroy.It excavates operation to be more convenient, overcomes traditional lining types
Inverted arch foundation excavation curvature is difficult to control the problems such as leading, and can reduce tunnel excavation amount, saves construction material, effectively reduces engineering
Construction investment.
Referring to figs. 1 to Fig. 7,41 plate body of the bottom plate central box construct arranged below extended along its longitudinal centre line
50, using its inner cavity as centralized drainage channel B.Described big 42 times setting box constructs 51 of skewback in both sides, it is longitudinally through
Inner cavity as substrate collecting channel C.Hole medial sulcus D is fixedly installed on the big skewback 42 in both sides.The drainage system includes
Arch wall range drainage system, tunnel bottom drainage system and tunnel inner water drainage system, arch wall range drainage system lead to central integrate draining
Road B is connected, and tunnel bottom drainage system is connected with centralized drainage channel B and substrate collecting channel C, tunnel inner water drainage system with
Hole medial sulcus D, centralized drainage channel B are connected.Three sets of drainage systems are set, and reliability higher, drainability is stronger, can have
Drainage arch wall range and tunnel bottom underground water are imitated, avoids traditional liner structure because ground water discharge is not smooth or heavy rain season groundwater run off
Lining cutting structure crack destroys after abruptly increase leads to inverted arch.
It is located at 10 structure of arch wall preliminary bracing and arch wall secondary lining with reference to figure and Fig. 2, the arch wall range waterproof layer 20
Between structure 40, the splash guard 20b of geotextiles 20a and outer layer including internal layer.The arch wall preliminary bracing structure 10 includes covering
The arch wall shotcrete layer 10a of the lid arch wall country rock and arch wall system anchor bolt 10c along arch wall quincuncial arrangement.The arch wall spray
It penetrates in concrete layer 10a and lays arch wall steelframe 10b along tunnel excavation direction interval, steel is added in arch wall shotcrete layer 10a
Muscle net.
With reference to Fig. 1, Fig. 3 to Fig. 9, tunnel bottom drainage system includes center tapping pipe 32a and side tapping pipe 32b, center
Tapping pipe 32a is embedded in the both sides side wall upper part of central box construct 50, side tapping pipe 32b edges along circuit extending direction interval
Circuit extending direction interval is embedded in the both sides side wall upper part of box construct 51.Pass through central tapping pipe 32a, side tapping pipe
32b respectively will be in tunnel bottom underground water ejectment to centralized drainage channel B, substrate collecting channel C.
With reference to Fig. 2, Fig. 3 and Fig. 5, the arch wall range drainage system includes circle draining blind pipe arch wall section 31a and circumferential direction
Section 31b, circle draining blind pipe arch wall section 31a are laid in non-woven geotextile 20a along tunnel excavation direction interval at draining blind pipe tunnel bottom
Between splash guard 20c, arch wall range underground water collected by circle draining blind pipe arch wall section 31a after through circle draining blind pipe tunnel bottom
Section 31b is discharged into centralized drainage channel B.
With reference to Fig. 1 and Fig. 4, the tunnel inner water drainage system includes being embedded in the big skewback in both sides along circuit extending direction interval
The lateral ties water of the 42 and tapping pipe 33a in the medial sulcus D of hole and connection Tunnel medial sulcus D and centralized drainage channel B
Pipe 33b, lateral ties water pipe 33b are arranged at intervals along circuit extending direction, and main body is embedded in bottom plate 41.
With reference to Fig. 3, Fig. 7 to Fig. 9, the 41 upper edge tunnel extending direction of bottom plate is arranged at intervals and centralized drainage channel B
The inspection well head F being connected, the cover board 30 of port setting thereon are closed.The inspection socket F is in 41 times setting connections of bottom plate
The tunnel bottom horizontal of centralized drainage channel B and both sides substrate collecting channel C checks channel E.It, can be from inspection well head F during operation
Into centralized drainage channel B carry out dredging or from check well head F through tunnel bottom horizontal check channel E to substrate collecting channel C into
Row dredging.
Some originals of only explain through diagrams big skewback floor type lining cutting of the invention and its drainage system construction described above
Reason, be not intended to by the present invention be confined to shown in and the concrete structure and the scope of application in, therefore every be possible to sharp
Corresponding modification and equivalent belong to the apllied the scope of the claims of the present invention.
Claims (8)
1. big skewback floor type lining cutting and its drainage system construction, including arch wall preliminary bracing structure (10), arch wall secondary lining
Structure (40) and arch wall range waterproof layer (20) and including drainage system, it is characterized in that：The arch wall secondary liner structure
The setting of (40) two side bottoms consolidates the big skewback (42) that is integrated as bearing structure therewith, and bottom is set between the big skewback in both sides (42)
Plate (41), bottom plate (41) both ends consolidate respectively with the big skewback in side (42)；Bottom plate (41) plate body is arranged below vertical along it
The central box construct (50) extended to center line, using its inner cavity as centralized drainage channel (B)；The big skewback in both sides
(42) box construct (51) is set under, and longitudinally through inner cavity is as substrate collecting channel (C)；The big skewback in both sides
(42) hole medial sulcus (D) is fixedly installed on；The drainage system includes arch wall range drainage system, tunnel bottom drainage system and tunnel
Inner water drainage system, arch wall range drainage system are connected with centralized drainage channel (B), tunnel bottom drainage system and central integrate draining
Channel (B) is connected with substrate collecting channel (C), tunnel inner water drainage system and hole medial sulcus (D), centralized drainage channel (B)
It is connected.
2. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：Tunnel bottom draining
System includes central tapping pipe (32a) and side tapping pipe (32b), central tapping pipe (32a) are buried along circuit extending direction interval
In the both sides side wall upper part of central box construct (50), side tapping pipe (32b) is embedded in box along circuit extending direction interval
The both sides side wall upper part of construct (51), by central tapping pipe (32a), side tapping pipe (32b) by the underground water ejectment of tunnel bottom extremely
In centralized drainage channel (B), substrate collecting channel (C).
3. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：The arch wall range
Drainage system includes circle draining blind pipe arch wall section (31a) and circle draining blind pipe tunnel bottom section (31b), circle draining blind pipe arch wall
Section (31a) is laid in along tunnel excavation direction interval between non-woven geotextile (20a) and splash guard (20c), arch wall range underground water
After collecting by circle draining blind pipe arch wall section (31a) centralized drainage channel is discharged into through circle draining blind pipe tunnel bottom section (31b)
(B) in.
4. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：It is arranged in the tunnel
Water system includes the tapping pipe (33a) being embedded in along circuit extending direction interval in the big skewback in both sides (42) and hole medial sulcus (D),
And the lateral ties water pipe (33b) of connection Tunnel medial sulcus (D) and centralized drainage channel (B), lateral ties water pipe
(33b) is arranged at intervals along circuit extending direction, and main body is embedded in bottom plate (41).
5. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：The bottom plate (41)
The inspection well head (F) that upper edge tunnel extending direction interval setting is connected with centralized drainage channel (B), the lid of port setting thereon
Plate (30) is closed.
6. big skewback floor type lining cutting as claimed in claim 5 and its drainage system construction, it is characterized in that：The inspection
Mouth (F) is in setting connection centralized drainage channel (B) and the tunnel bottom horizontal of both sides substrate collecting channel (C) under bottom plate (41) and examines
Look into channel (E).
7. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：The arch wall range
Waterproof layer (20) is between arch wall preliminary bracing (10) structure and arch wall secondary liner structure (40), the geotextiles including internal layer
The splash guard of (20a) and outer layer (20b).
8. big skewback floor type lining cutting as described in claim 1 and its drainage system construction, it is characterized in that：The arch wall initial stage
Arch wall shotcrete layer (10a) of the supporting construction (10) including covering arch wall country rock and the arch wall system along arch wall quincuncial arrangement
System anchor pole (10c).In the arch wall shotcrete layer (10a) arch wall steelframe (10b), arch are laid along tunnel excavation direction interval
Bar-mat reinforcement is added in wall shotcrete layer (10a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450500.5A CN108222975B (en) | 2017-12-27 | 2017-12-27 | Large arch base bottom plate type lining and drainage system structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711450500.5A CN108222975B (en) | 2017-12-27 | 2017-12-27 | Large arch base bottom plate type lining and drainage system structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108222975A true CN108222975A (en) | 2018-06-29 |
| CN108222975B CN108222975B (en) | 2024-07-19 |
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| CN201711450500.5A Active CN108222975B (en) | 2017-12-27 | 2017-12-27 | Large arch base bottom plate type lining and drainage system structure thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519192A (en) * | 2019-01-23 | 2019-03-26 | 四川省交通运输厅公路规划勘察设计研究院 | Store up drainage pressure-reducing construction and the tunnel structure across soft rock section in tunnel |
| CN109973147A (en) * | 2019-03-08 | 2019-07-05 | 中铁十九局集团第三工程有限公司 | A kind of vcehicular tunnel drainage groove applies method |
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| CN105840210A (en) * | 2016-06-12 | 2016-08-10 | 中铁二院工程集团有限责任公司 | Box type tunnel-bottom composite arched tunnel lining structure with water drain function |
| CN105863671A (en) * | 2016-06-12 | 2016-08-17 | 中铁二院工程集团有限责任公司 | Frame type low-position draining system tunnel lining structure |
| CN105927272A (en) * | 2016-06-12 | 2016-09-07 | 中铁二院工程集团有限责任公司 | Floor anchoring constraint tunnel lining structure |
| CN105986836A (en) * | 2016-06-14 | 2016-10-05 | 中铁隧道勘测设计院有限公司 | Single-line railway tunnel substrate waterproof and drainage reinforcing system |
| 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 |
| CN208473887U (en) * | 2017-12-27 | 2019-02-05 | 中铁二院工程集团有限责任公司 | Big skewback floor type lining structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519192A (en) * | 2019-01-23 | 2019-03-26 | 四川省交通运输厅公路规划勘察设计研究院 | Store up drainage pressure-reducing construction and the tunnel structure across soft rock section in tunnel |
| CN109519192B (en) * | 2019-01-23 | 2023-10-10 | 四川省公路规划勘察设计研究院有限公司 | Tunnel stores up drainage decompression structure and stride across tunnel structure in soft rock district |
| CN109973147A (en) * | 2019-03-08 | 2019-07-05 | 中铁十九局集团第三工程有限公司 | A kind of vcehicular tunnel drainage groove applies method |
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