CN109611150A - Tunnel water proofing discharge structure and tunnel water proofing water discharge method - Google Patents
Tunnel water proofing discharge structure and tunnel water proofing water discharge method Download PDFInfo
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- CN109611150A CN109611150A CN201910127194.4A CN201910127194A CN109611150A CN 109611150 A CN109611150 A CN 109611150A CN 201910127194 A CN201910127194 A CN 201910127194A CN 109611150 A CN109611150 A CN 109611150A
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- 238000004078 waterproofing Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 37
- 238000010079 rubber tapping Methods 0.000 claims abstract description 39
- 230000005641 tunneling Effects 0.000 claims abstract description 20
- 239000004567 concrete Substances 0.000 claims abstract description 18
- 239000000203 mixture Substances 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 49
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 239000011248 coating agent Substances 0.000 claims description 17
- 238000000576 coating method Methods 0.000 claims description 17
- 239000004746 geotextile Substances 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 235000014121 butter Nutrition 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 7
- 230000001771 impaired effect Effects 0.000 abstract description 3
- 239000011435 rock Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 10
- 238000009415 formwork Methods 0.000 description 6
- 244000025254 Cannabis sativa Species 0.000 description 4
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 4
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 4
- 235000009120 camo Nutrition 0.000 description 4
- 235000005607 chanvre indien Nutrition 0.000 description 4
- 239000011487 hemp Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005476 soldering Methods 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
- E21D11/14—Lining predominantly with metal
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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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
The invention discloses a kind of tunnel water proofing discharge structure and water-proof drainage methods, the tunnel water proofing discharge structure includes the preliminary bracing layer that sets gradually of wall surface in tunneling, waterproof roll layer, the tunnel arch wall of secondary moulded lining layer composition, in tunneling bottom surface, the two sides of liner structure are respectively equipped with the lateral sulcus longitudinally extended, longitudinal blind pipe is embedded in tunnel arch wall bottom, the inward at both ends of longitudinal blind pipe, which is bent and is communicated between lateral sulcus preliminary bracing layer and waterproof roll layer, is equipped at intervals with circle draining plate, lateral spare tapping pipe is additionally provided in the bottom of tunnel arch wall, the outer end of spare tapping pipe is communicated to corresponding lateral sulcus, inner end is located at preliminary bracing layer, the present invention is by being arranged spare tapping pipe, after the concrete blocking that the two-port of longitudinal blind pipe is solidified, spare tapping pipe can be enabled, reduce the hydraulic pressure at the tunnel arch wall back side Power prevents from causing tunnel structure impaired since hydraulic pressure is excessively high.
Description
Technical field
The present invention relates to technical field of tunnel construction, and in particular to a kind of tunnel water proofing discharge structure.
Background technique
In Tunnel Engineering, need to bury circle draining channel and longitudinal drainage channel, general ring in the tunnel wall constructed
It is communicated to longitudinal drainage channel to drainage channel, circle draining channel and longitudinal drainage channel are permeable structure, serve as a contrast tunnel
The ponding for building behind is discharged in the survey ditch of tunnel two sides by the outlet in longitudinal drainage channel, reduces liner structure behind hydraulic pressure
Power.
When tunnel-liner backfills mortar depositing construction, since the concrete in injection trolley formwork has a certain pressure, when slip casting, is starched
Liquid may enter longitudinal drainage channel and circle draining channel and flow out, need to be by longitudinal drainage channel to prevent slurries from flowing out
Outlet obstruction, therefore a certain amount of cement grout can be accumulated in drainage pipeline to cause the discharge outlet in longitudinal drainage channel to occur stifled
Plug, tunnel lining structure behind water cannot be smoothly discharged, and water pressure increase in liner structure behind can seriously affect tunnel structure
The probability of stability, lining cutting infiltration greatly improves.
The Chinese patent literature of Publication No. CN104879164A discloses a kind of tunnel circle draining structure, the tunnel ring
It is embedded between preliminary bracing layer and secondary lining layer to discharge structure using the perishable rope made of hemp, builds up initial stage in engineering, only
It can be drained in a small amount by the water imbibition of the rope made of hemp, after need to waiting until that the rope made of hemp etches, natural drainage channel could be formed, in engineering
Build up initial stage to the rope made of hemp corrosion interval time it is too long, tunnel wall back side water pressure is higher during this, and tunnel wall has biggish damage
The risk of leak.
The Chinese patent literature of Publication No. CN207297089U describes a kind of suitable for ballastless track bed tunnel inverted arch
Novel waterproof and water drainage system comprising the tunnel drainage system with tunnel lateral sulcus, tunnel Central drain, tunnel bottom structure includes inverted arch
It is easy to happen blocking with longitudinal blind pipe of inverted arch preliminary bracing, tunnel waterproof system setting, the later period needs repairing, due to draining
Mouth quantity is more, and maintenance cost is higher.
For these reasons, it is necessary to which later period maintenance cost can be reduced, can effectively arrange tunnel back side water by providing one kind
Out to reduce the water-proof drainage structure of tunnel back side hydraulic pressure.
Summary of the invention
The present invention is intended to provide a kind of tunnel water proofing discharge structure and tunnel water proofing water discharge method, solve tunnel in the prior art
The drainage hole in road is easy to happen blocking, so that tunnel lining structure back side water pressure increases, and then tunnel lining structure is caused to have
The technical issues of damage risk.
In order to solve the above technical problems, the first aspect of the present invention is:
A kind of tunnel water proofing discharge structure is provided, the preliminary bracing layer that sets gradually including the wall surface in tunneling, waterproof roll
The tunnel arch wall of material layer, secondary moulded lining layer composition, in tunneling bottom surface, the two sides of liner structure are respectively equipped with longitudinal prolong
The lateral sulcus stretched is embedded with longitudinal blind pipe in tunnel arch wall bottom, and the inward at both ends of the longitudinal direction blind pipe is bent and is communicated to described
Lateral sulcus is equipped at intervals with circle draining blind pipe or/and is equipped in construction joint two sides between the preliminary bracing layer and waterproof roll layer
The both ends of circle draining plate, the circle draining plate or/and circle draining blind pipe are communicated to corresponding longitudinal blind pipe；In tunnel
The bottom of road arch wall is additionally provided with lateral spare tapping pipe, and the outer end of the spare tapping pipe is communicated to the corresponding lateral sulcus,
Inner end is located at the preliminary bracing layer.
Preferably, the inner end mouthful of the spare tapping pipe is sealed with adhesive tape, and external port binds geotextiles, described standby
Spacer bar is set with sluicing bottom of the tube, tunnel wall surface is inserted into the inner end of the spacer bar.
Preferably, piece spare tapping pipe, tunnel circular construction joint are respectively set in the two sides of tunnel circular construction joint
Adjacent two spare sluicing tube spacing 50-80cm of two sides.
Preferably, longitudinal blind pipe is punching bellows, and the longitudinal direction blind pipe is located at the preliminary bracing layer and waterproof
Between coiled material layer, C15 non-sand concrete displacement hull is poured around the longitudinal direction blind pipe；It is wrapped outside the spare tapping pipe and longitudinal blind pipe
One layer of geotextiles are wrapped up in, one layer of geotextiles are equipped between the preliminary bracing layer and waterproof roll layer.
Preferably, two sides are respectively equipped with the bottom discharge blind pipe longitudinally extended below the liner structure of tunneling bottom surface,
Transverse drainage blind pipe is equipped between the bottom discharge blind pipe.
Preferably, the buried rubber fastening band in the middle part of the circular construction joint of tunnel arch wall and deformation construction joint is equipped with,
Top, which is located at below the waterproof roll layer, is equipped with back sticking type rubber fastening band.
Preferably, it is equipped with back sticking type rubber fastening band in the bottom of the circular construction joint of tunnel inverted arch and deformation construction joint,
Middle part be equipped in buried rubber fastening band；Also interval is embedded with longitudinal seamless steel pipe at the deformation construction joint of tunnel inverted arch,
Butter is filled in the seamless steel pipe.
Preferably, it is equipped with pre- patch flexible porous tube along longitudinal direction below the top waterproof roll layer of tunnel arch wall, it is described pre-
The one end for pasting flexible porous tube is equipped with vertical coating steel pipe, and it is flexible porous that one end of the coating steel pipe is communicated to the pre- patch
Pipe, the other end are communicated to the lower surface of tunnel arch wall.
The second aspect of the present invention is:
A kind of tunnel water proofing water discharge method is designed, including,
Preliminary bracing layer, waterproof roll layer, secondary moulded lining layer are set gradually in the wall surface of tunneling, at tunneling bottom
The lateral sulcus longitudinally extended is arranged in face, and in the embedded longitudinal blind pipe in tunnel arch wall bottom, the inward at both ends bending of the longitudinal direction blind pipe is simultaneously
It is communicated to the lateral sulcus；
The interval setting circle draining plate between the preliminary bracing layer and waterproof roll layer, the both ends of the circle draining plate connect
Lead to corresponding longitudinal blind pipe；
Lateral spare tapping pipe is buried in the bottom of tunnel arch wall, the outer end of the spare tapping pipe is communicated to corresponding described
Lateral sulcus, inner end are located at the preliminary bracing layer.
Preferably, pre- patch flexible porous tube, the pre- patch are equipped with along longitudinal direction below the top waterproof roll of tunnel arch wall
One end of flexible porous tube is equipped with vertical coating steel pipe, and it is flexible porous that one end of the coating steel pipe is communicated to the pre- patch
Pipe, the other end are communicated to the lower surface of tunnel arch wall, inwardly inject cement mortar by the coating steel pipe, carry out lining cutting behind
Slip casting is backfilled, when grouting pressure reaches 0.2Mpa, terminates slip casting.
The beneficial technical effect of the present invention lies in:
1. tunnel water proofing discharge structure provided by the invention is equipped with the spare tapping pipe of spare tapping pipe, in the two-port of longitudinal blind pipe
After the concrete blocking being solidified, spare tapping pipe can be enabled, spare tapping pipe is straight tube, and outer end is close using adhesive tape
Envelope, after tunnel arch wall pours, using cutter ring cutting adhesive tape can water flowing, reduce the tunnel arch wall back side water pressure, prevent
Cause tunnel structure impaired since hydraulic pressure is excessively high.
2. not needing to repair it and get through, reduce dimension after the concrete blocking that the two-port of longitudinal blind pipe is solidified
Expense is repaired, and reduces the risk of maintenance bring tunnel structure damage.
3. the deformation construction joint location of inverted arch is equipped with seamless steel pipe in tunnel, the deformation for being both suitable for structure longitudinal extension is wanted
It asks, and the sedimentation of tunable deformation construction joint two sides, advantageously reduces differential settlement, reduce waterstop amount of tension, extension stops
Water band service life, enhances waterproof effect.
4. the tunnel water proofing discharge structure is buried in each circular construction joint and deformation joint location equipped with back-adhering waterstop
Formula waterstop, so that weaker tunnel circular construction joint and deformation joint location have preferable waterproof performance.
5. the bottom in tunnel is equipped with bottom longitudinal direction blind pipe, can will be outside tunnel lining structure bottom by bottom longitudinal direction blind pipe
Water discharge, prevent tunnel lining structure bottom water pressure excessive.
Detailed description of the invention
Fig. 1 is the cross-sectional structure schematic diagram of 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 2 is the portion the A enlarged drawing in Fig. 1；
Fig. 3 is the tiling schematic diagram of waterproof roll layer in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 4 is the fixed schematic diagram of installation of waterproof roll layer in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 5 is the scheme of installation of circumferential drain bar in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 6 is the mounting plane figure of spare drain hole in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 7 is the installation cross-sectional view of spare drain hole in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Fig. 8 is circular construction joint location in 1 tunnel water proofing discharge structure of the embodiment of the present invention and deforms the transversal of construction joint location
Face structural schematic diagram；
Fig. 9 is the longitudinal cross-section structural schematic diagram in circular construction joint location in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Figure 10 is the longitudinal cross-section structural schematic diagram that construction joint location is deformed in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Figure 11 is that vault backfills slip casting schematic diagram behind in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Figure 12 is the longitudinal sectional drawing that vault backfills slip casting behind in 1 tunnel water proofing discharge structure of the embodiment of the present invention；
Figure 13 is the cross-sectional structure schematic diagram of 2 tunnel water proofing discharge structure of the embodiment of the present invention；
Figure 14 is the longitudinal cross-section knot in the circular construction joint location of tunnel inverted arch in 2 tunnel water proofing discharge structure of the embodiment of the present invention
Structure schematic diagram；
Figure 15 is the longitudinal cross-section knot in the deformation construction joint location of tunnel inverted arch in 2 tunnel water proofing discharge structure of the embodiment of the present invention
Structure schematic diagram；
Figure 16 is the flow chart of 3 tunnel water proofing water discharge method of the embodiment of the present invention.
In figure, each label signal are as follows: preliminary bracing layer 11, country rock 111, waterproof roll layer 12, geotextiles 121, riveting group
Part 122, hot melt liner 1221, nailing 1222, metal washer 1223, abutment wall portion 123, crown portion 124, secondary moulded lining layer
13, secondary moulded lining layer root 131, longitudinal construction joint 132, in buried rubber fastening band 133, circular construction joint 134, trolley
Template 135, template aperture 1351, in buried rubber fastening band 136, back sticking type rubber fastening band 137, deformation construction joint 138, de-
Empty portion 139, bottom plate 141, back sticking type rubber fastening band 1411, discharge conduit 142, lateral sulcus 1421, side gutter 1422, filling
Layer 143, railway roadbed 1431, in buried rubber fastening band 1432, longitudinal blind pipe 151, bending section 1511, C15 non-sand concrete displacement hull
1512, circle draining plate 16, spare tapping pipe 17, adhesive tape 171, spacer bar 172, pre- patch flexible porous tube 181, zinc-plated
Steel pipe 182, internal rail top surface 192, preliminary bracing layer 21, waterproof roll layer 22, secondary moulded lining layer 23, becomes tunnel middle line 191
Shape construction joint 232, seamless steel pipe 233, bottom preliminary bracing layer 241, back sticking type rubber fastening band 2411, the secondary mould in bottom build lining
Course 242, in buried rubber fastening band 2421, filled layer 243.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.
During whole constructing tunnel, the form of construction work of tunnel lining structure, I, II grade of country rock are determined according to country rock grade
Coating combination it is good, be generally not in unstable bolck, and the bite force of the structural plane of III, IV, V grade of country rock hole section is weak,
With more unstable bolck, therefore, in I, II grade of country rock hole section, the bottom of tunnel lining structure is construction of bottom plates mode,
In III, IV, V grade of country rock hole section, the bottom of tunnel lining structure needs to carry out inverted arch construction.
Embodiment 1:
A kind of tunnel water proofing discharge structure, also referring to Fig. 1 to Figure 12.
As depicted in figs. 1 and 2, tunnel water proofing discharge structure provided in this embodiment is for I, II grade of country rock hole section, the tunnel
Road water-proof drainage structure includes wall surface the preliminary bracing layer 11, waterproof roll layer 12, the secondary mould that set gradually in tunneling
Building lining layer 13, preliminary bracing layer 11 are to be injected in the concrete mud on tunneling wall surface or elder generation on tunneling wall surface
Anchor pole fill-before-fire concrete mud is squeezed into, one layer of geotextiles 121 are equipped between preliminary bracing layer 11 and waterproof roll layer 12,
Geotextiles 121 have good water permeability, and can be protected from waterproof roll layer 12, prevent it to be punctured, secondary mould builds lining
Course 13 be by below geotextiles 121 supporting trolley formwork after-pouring concrete formed.By preliminary bracing layer 11, waterproof roll
Material layer 12, secondary moulded lining layer 13 form tunnel arch wall.
As shown in Figure 3 and Figure 4, waterproof roll layer 12 is fixed on the initial stage branch poured on country rock 111 by riveting component 122
On sheath 11, the two sides up and down of waterproof roll layer 12 are abutment wall portion 123, and middle section is crown portion 124, and abutment wall portion 123 is corresponding
In on the abutment wall for being laid on tunnel arch wall, crown portion 124, which corresponds to, to be laid on the vault of tunnel arch wall, in abutment wall portion 123
Riveting component 122 is more sparse, and the riveting component 122 in crown portion 124 is more dense.
Riveting component 122 includes 1221, nailing 1222, metal washer 1223 of hot melt liner, and fixed geotextiles 121, which use, penetrates
Metal washer 1223 is pressed under nailing 1222 by nail gun, and hot melt liner 1221 is pressed under metal washer 1223, washer is heated
Welding uses pressure welding device between 1221 and waterproof roll layer 12, and the welding of adjacent waterproof roll is using double slit heat on waterproof roll layer 12
Fusing soldering welder.
Tunneling bottom surface liner structure includes bottom plate 141 and discharge conduit 142, is equipped on the inside of discharge conduit 142 longitudinal
The lateral sulcus 1421 of extension, outside are equipped with side gutter 1422, and bottom plate 141 is concrete lift, and top is filled layer
143, filled layer 143 uses C20 concrete placings, and it is railway roadbed at the top of filled layer 143 that the intensity of bottom plate 141, which is higher than filled layer 143,
1431, it is internal rail top surface 192 at the top of railway roadbed 1431, is laid with rubble on railway roadbed 1431, track is laid on rubble, entire tunnel is in tunnel
Middle line 191 two sides in road are symmetrical.
Side gutter 1422 and the top surface of railway roadbed 1431 pass through transverse water drain pipe 1423 and are communicated to lateral sulcus 1421, laterally let out
Water pipe 1423 is internal diameter 50mm pipeline, and the interval 3-5m is laid along longitudinal direction by lateral sulcus 1421.When draining, the water of internal rail top surface is arranged
Enter side gutter 1422, the water in side gutter 1422 and railway roadbed 1431 is discharged into lateral sulcus 1421, eventually by lateral sulcus
1421 are discharged to outside tunnel.
It is embedded with longitudinal blind pipe 151 in tunnel arch wall bottom, wraps up one layer of geotextiles, longitudinal blind pipe 151 outside longitudinal blind pipe
Both ends be bending section 1511, bending section 1511 curves inwardly and is communicated to lateral sulcus 1421, the bottom of secondary moulded lining layer 13
For secondary moulded lining layer root 131, between secondary moulded lining layer root 131 and the main body on secondary 13 top of moulded lining layer
Equipped with longitudinal construction joint 132, be equipped among longitudinal construction joint 132 in buried rubber fastening band 133, longitudinal blind pipe 151 is embedded in
Between preliminary bracing layer 11 and waterproof roll layer 12, one layer of geotextiles are wrapped up outside longitudinal blind pipe 151, longitudinal blind pipe 151 is interior
The punching bellows of diameter 107mm pours C15 non-sand concrete displacement hull 1512, C15 non-sand concrete displacement hull around longitudinal blind pipe 151
1512 inside are coarse texture, have water permeability, and the water in country rock enters C15 without sand by the crack on preliminary bracing layer 11
Concrete displacement hull 1512, and eventually enter into longitudinal blind pipe 151 and be drained into lateral sulcus 1421.
As shown in figure 5, being respectively provided with a circumferential row in construction joint two sides between preliminary bracing layer 11 and waterproof roll layer 12
Water plate 16, the width L1 of each circle draining plate 16 are 50cm,
A longitudinal blind pipe 151, the end of the two 16 the same sides of circle draining plate are buried respectively in the two sides of each ring tunnel arch wall
Head is communicated to corresponding longitudinal blind pipe 151, and the water in country rock enters circle draining plate 16 by the crack on preliminary bracing layer 11,
Longitudinal blind pipe 151 is discharged by circle draining plate 16 again, is ultimately discharged into lateral sulcus 1421, to reduce the hydraulic pressure at the tunnel arch wall back side
Power.
Further, in water abundant ground, the circle draining blind pipe of φ 50mm, the circumferential direction be there also is provided according to longitudinal pitch 2m
The both ends of draining blind pipe are also communicated to corresponding longitudinal blind pipe.
Further, as shown in Fig. 6-1 and Fig. 6-2, lateral spare tapping pipe 17 is additionally provided in the bottom of tunnel arch wall,
Specifically, about 10 meters of a ring tunnel arch wall length, about 9 meters of spacing between the two-port of longitudinal blind pipe 151, a ring tunnel arch wall exists
The two sides of longitudinal blind pipe 151 are respectively provided with a spare tapping pipe 17, and spare tapping pipe 17 is located at same height with longitudinal blind pipe 151
Journey.The outer end of spare tapping pipe 17 be communicated to corresponding lateral sulcus 1421 and binding geotextiles, inner end be located at preliminary bracing layer 11 and
It is sealed with adhesive tape 171.
Trolley formwork 135 corresponds to 1511 end of bending section of longitudinal blind pipe 151 and the outer end of spare tapping pipe 17 and is all provided with
There is template aperture 1351, in pre-buried spare tapping pipe 17, wraps up one layer of geotextiles, spare tapping pipe 17 outside spare tapping pipe 17
Outer end pass through trolley formwork 135 template aperture 1351, spare 17 bottom of tapping pipe be arranged spacer bar 172, supporting steel
In the preliminary bracing layer 11 and country rock of the inner end insertion tunnel wall surface of muscle 172,172 diameter 16mm of spacer bar, to guarantee to support
It is firm.
It is circular construction joint 134 between adjacent two rings tunnel arch wall, in tunnel, the two sides of circular construction joint 134 are respectively arranged one
The spare tapping pipe 17 of root, spacing 60cm between adjacent two spare tapping pipes 17 of 134 two sides of tunnel circular construction joint.
After the blocking of 1511 end of bending section of longitudinal blind pipe 151, water is accumulated in longitudinal blind pipe 151 leads to longitudinal blind pipe
151 hydraulic pressure increases nearby, and contact point hydraulic pressure is small between spare tapping pipe 17 and preliminary bracing layer 11, water can flow to from high pressure
It is excluded at low pressure and along spare tapping pipe 17, prevents tunnel arch wall back side hydraulic pressure is excessive from causing liner structure unstable or damaging
It is bad.
It is higher to waterproof ability requirement at the construction joint and deformation construction joint of two ring tunnel arch walls, therefore, such as Fig. 8 institute
Show, at circular construction joint 134 or deformation construction joint 138, back sticking type rubber fastening band 1411 is equipped at the top of bottom plate 141,
Buried rubber fastening band 1432 in being embedded in the middle part of filled layer 143.As shown in Figure 9 and Figure 10, in secondary moulded lining layer 13
Buried rubber fastening band 136 in being equipped with is located at below waterproof roll layer 12 at the top of secondary moulded lining layer 13 and is equipped with back patch
Formula rubber fastening band 137, in buried rubber fastening band 136, in buried 1432 width L2 of rubber fastening band be 40cm.
Further, two sides are respectively equipped with the bottom discharge blind pipe longitudinally extended, bottom discharge blind pipe below bottom plate 141
Between be equipped with transverse drainage blind pipe, the water of the lower section of bottom plate 141 is discharged by bottom discharge blind pipe by transverse drainage blind pipe, is being passed through
Water is discharged to outside tunnel by bottom discharge blind pipe, prevents 141 lower section hydraulic pressure of bottom plate excessive.
As is illustrated by figs. 11 and 12, when pouring secondary moulded lining layer 13, the top of secondary moulded lining layer 13 can be deposited
In the portion of coming to nothing 139, leads to leakiness at the top of tunnel arch wall, be unfavorable for water-proof drainage, therefore, in the top waterproof roll of tunnel arch wall
12 lower section of material layer is equipped with pre- patch flexible porous tube 181 along longitudinal direction, and the pre- flexible porous tube 181 that pastes is close to trolley formwork end face 1352
One end is equipped with vertical coating steel pipe 182,182 internal diameter 30cm of coating steel pipe, and one end is communicated to pre- patch flexible porous tube 181,
The other end is communicated to the lower surface of tunnel arch wall, can be soft to pasting in advance by coating steel pipe 182 after trolley formwork 135 is removed
Water-permeable pipe 181 injects concrete grout, and concrete grout, full of portion 139 of entirely coming to nothing, makes tunnel arch wall along pre- patch flexible porous tube 181
Top filling is closely knit.
Embodiment 2
A kind of tunnel water proofing discharge structure, also referring to Figure 13 to Figure 15.
As shown in figure 13, tunnel water proofing discharge structure provided in this embodiment is for III, IV, V grade of country rock hole section, with reality
The difference for applying example 1 is, is not only provided on the top of tunneling by preliminary bracing layer 21, waterproof roll layer 22, secondary mould
The tunnel arch wall that building lining layer 23 forms also is equipped with tunnel inverted arch in the bottom of tunneling, and tunnel inverted arch includes bottom initial stage
Branch sheath 241, the secondary moulded lining layer 242 in bottom and filled layer 243, to enhance the support capacity in entire tunnel.
As shown in figure 14, in 231 location of circular construction joint of tunnel inverted arch, among the secondary moulded lining layer 242 in bottom
Buried rubber fastening band 2421 in being equipped with, in bottom, the lower surface of secondary moulded lining layer 242 is embedded with back sticking type rubber water-proof
Band 2411, in buried rubber fastening band 2421 and 2411 width of back sticking type rubber fastening band in 40cm, prevent water from being applied by circumferential direction
Work seam 231 penetrates into.
Further, as shown in figure 15, the bottom in 232 location of deformation construction joint of tunnel inverted arch be also spaced be embedded with it is vertical
To seamless steel pipe 233, butter is filled in seamless steel pipe 233, prevents seamless steel pipe 233 from getting rusty, seamless steel pipe 233 plays connection
The effect of two ring tunnel inverted arch, prevent tunnel inverted arch part deformation occurs destroy waterproof ability.
Embodiment 3
A kind of tunnel water proofing water discharge method, comprising:
(1) main water-proof drainage structure construction: preliminary bracing layer, waterproof roll layer, secondary is set gradually in the wall surface of tunneling
The lateral sulcus longitudinally extended is arranged in tunneling bottom surface for moulded lining layer, longitudinal blind in the embedded longitudinal blind pipe in tunnel arch wall bottom
The inward at both ends of pipe is bent and is communicated to lateral sulcus；Setting circle draining plate in interval between branch sheath and waterproof roll layer in the early stage,
The both ends of circle draining plate are communicated to corresponding longitudinal blind pipe.
One layer of geotextiles are laid on waterproof roll layer to prevent from being punctured, waterproof roll layer constitutes the main waterproof of tunnel arch wall
Structure, and the main discharge structure of tunnel arch wall is made up of above-mentioned circle draining plate and longitudinal blind pipe.
Further, it is equipped with pre- patch flexible porous tube along longitudinal direction below the top waterproof roll of tunnel arch wall, pastes in advance soft
One end of formula water-permeable pipe is equipped with vertical coating steel pipe, and one end of coating steel pipe is communicated to pre- patch flexible porous tube, and the other end connects
Cement mortar is inwardly injected by coating steel pipe in the lower surface for leading to tunnel arch wall, when grouting pressure reaches 0.2Mpa, terminates
Slip casting.Due to tunnel arch wall secondary moulded lining layer at the top of can exist come to nothing, cause its top it is not closely knit enough, waterproof ability compared with
Difference can increase the compactness at the top of arch wall by secondary grouting, enhance waterproof ability.
(2) spare discharge structure construction: burying lateral spare tapping pipe in the bottom of tunnel arch wall, spare tapping pipe
Outer end is communicated to corresponding lateral sulcus, and inner end is located at preliminary bracing layer.
Since the two-port of longitudinal blind pipe is easy the concrete being solidified blocking, after later period tunnel comes into operation, part hole
Section draining is difficult, and can exclude water by spare tapping pipe, has both reduced the water pressure at the tunnel arch wall back side, has prevented due to hydraulic pressure mistake
It is impaired that height leads to tunnel structure, while avoiding and drilling through drain hole again, has saved cost.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (10)
1. a kind of tunnel water proofing discharge structure, preliminary bracing layer, the waterproof roll set gradually including the wall surface in tunneling
The tunnel arch wall of layer, secondary moulded lining layer composition, in tunneling bottom surface, the two sides of liner structure are respectively equipped with longitudinal extension
Lateral sulcus, be embedded with longitudinal blind pipe in tunnel arch wall bottom, the inward at both ends of the longitudinal direction blind pipe is bent and is communicated to the side
Ditch, which is characterized in that circle draining blind pipe is equipped at intervals between the preliminary bracing layer and waterproof roll layer or/and in construction joint
Two sides are equipped with circle draining plate, and the both ends of the circle draining plate or/and circle draining blind pipe are communicated to the corresponding longitudinal direction
Blind pipe；Lateral spare tapping pipe is additionally provided in the bottom of tunnel arch wall, the outer end of the spare tapping pipe is communicated to corresponding
The lateral sulcus, inner end are located at the preliminary bracing layer.
2. tunnel water proofing discharge structure according to claim 1, which is characterized in that use the inner end mouthful of the spare tapping pipe
Adhesive tape sealing, external port bind geotextiles, and spacer bar is arranged in the spare sluicing bottom of the tube, the spacer bar
Tunnel wall surface is inserted into inner end.
3. tunnel water proofing discharge structure according to claim 1, which is characterized in that in tunnel, the two sides of circular construction joint are each
A piece spare tapping pipe, adjacent two spare sluicing tube spacing 50-80cm of tunnel circular construction joint two sides are set.
4. tunnel water proofing discharge structure according to claim 1, which is characterized in that the longitudinal direction blind pipe is punching ripple
Pipe, the longitudinal direction blind pipe pour C15 without sand around the longitudinal direction blind pipe between the preliminary bracing layer and waterproof roll layer
Concrete displacement hull；One layer of geotextiles are wrapped up outside the spare tapping pipe and longitudinal blind pipe；The preliminary bracing layer and waterproof roll
One layer of geotextiles are equipped between layer.
5. tunnel water proofing discharge structure according to claim 1, which is characterized in that tunneling bottom surface liner structure with
Lower two sides are respectively equipped with the bottom discharge blind pipe longitudinally extended, are equipped with transverse drainage blind pipe between the bottom discharge blind pipe.
6. tunnel water proofing discharge structure according to claim 1, which is characterized in that tunnel arch wall circular construction joint and
The middle part of deformation construction joint be equipped in buried rubber fastening band, top, which is located at below the waterproof roll layer, is equipped with back sticking type rubber
Waterstop.
7. tunnel water proofing discharge structure according to claim 1, which is characterized in that in tunnel the circular construction joint of inverted arch and
Deform construction joint bottom be equipped with back sticking type rubber fastening band, middle part be equipped in buried rubber fastening band；The change of inverted arch in tunnel
Also interval is embedded with longitudinal seamless steel pipe at shape construction joint, fills butter in the seamless steel pipe.
8. tunnel water proofing discharge structure according to claim 1, which is characterized in that in the top waterproof roll of tunnel arch wall
Layer lower section is equipped with pre- patch flexible porous tube along longitudinal direction, and one end of the pre- patch flexible porous tube is equipped with vertical coating steel pipe, institute
The one end for stating coating steel pipe is communicated to the pre- patch flexible porous tube, and the other end is communicated to the lower surface of tunnel arch wall.
9. a kind of tunnel water proofing water discharge method, which is characterized in that including,
Preliminary bracing layer, waterproof roll layer, secondary moulded lining layer are set gradually in the wall surface of tunneling, at tunneling bottom
The lateral sulcus longitudinally extended is arranged in face, and in the embedded longitudinal blind pipe in tunnel arch wall bottom, the inward at both ends bending of the longitudinal direction blind pipe is simultaneously
It is communicated to the lateral sulcus；
The interval setting circle draining plate between the preliminary bracing layer and waterproof roll layer, the both ends of the circle draining plate connect
Lead to corresponding longitudinal blind pipe；
Lateral spare tapping pipe is buried in the bottom of tunnel arch wall, the outer end of the spare tapping pipe is communicated to corresponding described
Lateral sulcus, inner end are located at the preliminary bracing layer.
10. tunnel water proofing water discharge method according to claim 9, which is characterized in that in the top waterproof roll of tunnel arch wall
Pre- patch flexible porous tube is equipped with below material along longitudinal direction, one end of the pre- patch flexible porous tube is equipped with vertical coating steel pipe, institute
The one end for stating coating steel pipe is communicated to the pre- patch flexible porous tube, and the other end is communicated to the lower surface of tunnel arch wall, passes through institute
It states coating steel pipe and inwardly injects cement mortar, carrying out lining cutting backfill slip casting behind terminates note when grouting pressure reaches 0.2Mpa
Slurry.
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| CN110145364A (en) * | 2019-06-24 | 2019-08-20 | 中铁隧道局集团有限公司 | A kind of construction method of tunnel water handling structure |
| KR102026874B1 (en) * | 2019-04-16 | 2019-09-30 | 나두영 | drain system for water flowing out of tunnel road |
| 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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| CN111810233A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Construction method for drainage hole of tunnel lining side wall |
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| CN113374524A (en) * | 2021-06-25 | 2021-09-10 | 中铁大桥勘测设计院集团有限公司武汉分公司 | Longitudinal water-permeable supporting block for tunnel |
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| CN114352308A (en) * | 2022-01-13 | 2022-04-15 | 中化学交通建设集团有限公司 | Tunnel entrance to a cave section is prevented drainage and reinforced structure |
| CN114592911A (en) * | 2022-03-08 | 2022-06-07 | 中铁十六局集团第三工程有限公司 | Waterproof and drainage structure of oversized span open-cut tunnel |
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| CN110486037A (en) * | 2019-08-26 | 2019-11-22 | 中铁二局第一工程有限公司 | A kind of constructing structure that railway tunnel vault prevents two lining vaults from coming to nothing and method |
| CN110486037B (en) * | 2019-08-26 | 2024-04-05 | 中铁二局第一工程有限公司 | Construction structure and method for preventing double-lining vault from being hollow for railway tunnel vault |
| CN111810233A (en) * | 2020-06-30 | 2020-10-23 | 中铁二院工程集团有限责任公司 | Construction method for drainage hole of tunnel lining side wall |
| CN112360519B (en) * | 2020-10-28 | 2023-02-17 | 中铁隧道局集团有限公司 | Geotextile positioning method for positioning geotextile and improving tunnel waterproof plate laying quality |
| CN112360519A (en) * | 2020-10-28 | 2021-02-12 | 中铁隧道局集团有限公司 | Geotextile positioning method for positioning geotextile and improving tunnel waterproof plate laying quality |
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| CN113404533A (en) * | 2021-06-28 | 2021-09-17 | 中铁大桥勘测设计院集团有限公司武汉分公司 | Integrated longitudinal drainage blind pipe with water permeable supporting function for tunnel |
| CN114278375A (en) * | 2021-12-18 | 2022-04-05 | 中建一局集团京通路桥建设有限公司 | Tunnel hoop drainage system |
| CN114352308A (en) * | 2022-01-13 | 2022-04-15 | 中化学交通建设集团有限公司 | Tunnel entrance to a cave section is prevented drainage and reinforced structure |
| CN114592911A (en) * | 2022-03-08 | 2022-06-07 | 中铁十六局集团第三工程有限公司 | Waterproof and drainage structure of oversized span open-cut tunnel |
| CN115199306A (en) * | 2022-07-06 | 2022-10-18 | 中铁二十一局集团第二工程有限公司 | Waterproof equipment for water leakage in tunnel construction stage and application method |
| CN118390578A (en) * | 2024-06-28 | 2024-07-26 | 中铁第六勘察设计院集团有限公司 | Waterproof and drainage system for underwater tunnel connection position |
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