CN108316949A - Umbrella arch is without empty lining process - Google Patents
Umbrella arch is without empty lining process Download PDFInfo
- Publication number
- CN108316949A CN108316949A CN201810126446.7A CN201810126446A CN108316949A CN 108316949 A CN108316949 A CN 108316949A CN 201810126446 A CN201810126446 A CN 201810126446A CN 108316949 A CN108316949 A CN 108316949A
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- Prior art keywords
- observation
- observation tube
- grouting pipe
- hole
- lining
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000004567 concrete Substances 0.000 claims abstract description 55
- 230000010412 perfusion Effects 0.000 claims abstract description 41
- 239000000523 sample Substances 0.000 claims abstract description 34
- 239000002002 slurry Substances 0.000 claims abstract description 27
- 238000007569 slipcasting Methods 0.000 claims description 49
- 238000009434 installation Methods 0.000 claims description 31
- 244000144985 peep Species 0.000 claims description 25
- 238000009415 formwork Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 238000013461 design Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 235000013336 milk Nutrition 0.000 claims description 2
- 239000008267 milk Substances 0.000 claims description 2
- 210000004080 milk Anatomy 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 22
- 230000003014 reinforcing effect Effects 0.000 description 14
- 239000011148 porous material Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000013022 venting Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000004570 mortar (masonry) Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of umbrella arches without empty lining methods, by the way that observation tube is fanned the air and installed in crown template, when carrying out filling concrete observation perfusion situation, according to the observation to the case where decide whether carry out band be molded into slurry.The present invention is monitored by the way that the lining perfusion of observation tube pair two situation is arranged in trolley crown, filling concrete situation in template from being put in from observation tube using observation probe, it is effectively prevent the generation in cavity, multiple observation tubes can be installed in template, realizes conduct monitoring at all levels.
Description
Technical field
The present invention relates to a kind of tunnel-liner methods, more particularly to a kind of crown lining methods.
Background technology
With lining trolley in Tunnel Second Lining, there is cavity in concrete, prodigious influence can be caused on its intensity,
Lining trolley is easy to generate cavity in crown part under normal circumstances, and is not easy to find empty, lining cutting during perfusion
Cavity is just found when trolley demoulds；After even demoulding, cavity is not seen, but has had cavity in inside concrete.It is main former
Because being：（1）When crown upper part is perfused in lining trolley, due to not having perfusion window, only perfusing hole, personnel are perfused, it is impossible to
As in perfusion window, observing the perfusion situation of crown upper part like that, i.e., the perfusion of crown upper part cannot be clearly viewed
Situation.（2）At the closeer position of reinforcing bar or reserving hole and built-in fitting, concrete discharging is put, and is not vibrated and is continued to pour
Layer concrete on note.（3）When pump concrete, it is too long that centre stops pump time.（4）Concrete flowability is poor.（5）Concrete
Isolation, mortar separation, stone is in heaps, serious running pulp, and does not vibrate or the blanking of vertical structure dry concrete
Excessively, blocked up, blanking is excessively high, and vibrator vibration is less than forming loose hole.（6）Concrete includes water, soil or other are miscellaneous
Object.
In Tunnel Second Lining, just need to remove in case of cavitation to be perfused again, it is time-consuming and laborious, it is of high cost.
In order to avoid the above situation occurs, it is common practice to the bulkhead crown highest point of one end finally be perfused in lining trolley, pacify
A camera is filled, by perfusion situation of concrete when camera head monitor secondary lining in crown template, or is not taken the photograph
As head manually naked eyes directly see, to prevent cavity, but since template is longer（10 meters or more）, lining trolley crown is most
Eminence is generally evenly distributed with 4 perfusing holes along tunnel longitudinal direction, and each perfusing hole of secondary lining is perfused in filling process
Concrete at mouthful is high, high at formation perfusing hole, and the low gradient around perfusing hole, camera can only just be observed close to camera
The perfusion situation of this one side has blocked the camera observation subsequent perfusion situation of perfusing hole since the concrete at perfusing hole is high.
Invention content
The technical problem to be solved in the present invention：It cannot be observed for present Observations Means when crown perfusing hole is perfused
The problem of situation is perfused behind to crown template perfusing hole, provides a kind of lining cutting for capableing of comprehensive observation crown secondary lining
Method.
Technical solution of the present invention：
A kind of umbrella arch includes the following steps without empty lining methods：
One, injected hole and peep hole are opened up in trolley vault template, are welded under injected hole and peep hole and are closed device；
Two, required after keeping trolley formwork in place according to two lining geometry, by Grouting Pipe and observation tube pass through injected hole and peep hole into
Row tries measurement on, determines whether the installation length of Grouting Pipe and observation tube meets slip casting, observation and test concrete with Grouting Pipe
Whether the full requirement of perfusion；
Three, Grouting Pipe and observation tube are installed, are inserted into after Grouting Pipe withstands splash guard and mark and cut Grouting Pipe, in Grouting Pipe
Upper surface opens up cross recess；Grouting Pipe and observation tube are fixed on and closed on device；
Four, crown two serves as a contrast concrete perfusion and observes perfusion situation, when crown concrete being sequentially perfused using perfusing hole, will observe
Probe from each observation tube extend into top carry out from, the perfusion situation of monitored concrete, when observe concrete close to see
Observation tube is taken out when examining pipe upper end, continues perfusion until next perfusing hole bleeding, replaces perfusing hole and continue to be in the milk.
After step 4, if it is observed that having cavity to generate then carries out the following steps：
Five, prepared by injection slurry and crown band is molded into slurry, and area of being come to nothing between splash guard behind to secondary lining using Grouting Pipe is carried out
Slip casting.
Six, pressure gauge and gas vent pulp are observed
Seven, slip casting terminates, and unloads slip casting machine hose, Grouting Pipe is blocked closely knit.
After step 4, the following steps are carried out if cavity is not observed and generates：Grouting Pipe is extracted, slip casting is blocked
Hole.
It in step 1, closes device upper surface and offers sliding slot, plate is installed in sliding slot, close device lower end and pass through spiral shell
Column connects locating flange.
In step 3, retraction 3-5cm is fixed after observation tube touches splash guard.
In step 4, observation probe is first removed, will be sealed at the top of observation tube, then taken out observation tube, close peep hole.
It is equipped with operating lever in observation tube, observation probe is installed at the top of operating lever.
Operating lever top connects closure plate, and there is sealing terrace in observation tube upper end, pulls down operating lever, seals in terrace and closure plate
Side matches.
The operating lever other end connects closure plate by bulb, and the internal face of observation tube upper end has sealing ring, and operating lever is in turn
It is inserted into observation tube and pushes up, closure plate upper surface and the cooperation of sealing ring lower surface.
Injected hole and peep hole are between two neighboring perfusing hole and template both ends.
Advantageous effect of the present invention：
This method in crown template by installing observation tube, and concrete fills in template from observation probe is put in from observation tube
Situation is noted, the generation in cavity is effectively prevent.Multiple observation tubes can be installed in template, realize conduct monitoring at all levels.
There is closure plate in the upper end of observation tube, seals upper end when for removing observation tube, blocks concrete and is not leaked from observation tube
Go out.When observation probe pipe exits crown template, crown mouth is closed using plate and blocks concrete, after observation tube is removed, concrete
It will not leak out.
It is popped one's head in by observing, can see the size in cavity, before carrying out empty slip casting, additionally it is possible to which probably estimation is filled out
The grouting amount in full cavity, whether observation grouting amount is as filling up empty reference.
Description of the drawings：
Fig. 1 is overall structure of the present invention.
Fig. 2 is the structural schematic diagram of observation tube in embodiment 1.
Fig. 3 is the fixed structure schematic diagram of observation tube in embodiment 2.
Fig. 4 is the sealed structural representation of observation tube in embodiment 2.
Fig. 5 is the sealing of observation tube and mounting structure schematic diagram in embodiment 3.
Fig. 6 is to close apparatus structure schematic diagram.
Fig. 7 is the arrangement schematic diagram of embodiment 4.
Specific implementation mode：
Embodiment 1：Observation tube in the present embodiment is the integrated observation tube of integrated camera.
Peep hole is opened up in the vault template of lining trolley, is welded below peep hole and closes device 4, closes device 4 by solid
Determine flange and plate 10 forms, is seen using the locating flange 5 on link bolt connection observation tube 2, easy disassembly on mounting flange
Pipe 2 is examined, the mounting flange upper surface for closing device 4 offers sliding slot, and plate 10 is arranged in sliding slot, and plate 10 is close to vault mould
Plate, plate 10 is for after taking out observation tube 2, movable flashboard 10 to block peep hole, and concrete will not leak out.5 center of locating flange
There is positioning tube 16, pin hole is offered on barrel, observation tube 2 is inserted into positioning tube 16 and is extend into close to tunnel across peep hole
The place of splash guard.Note that get out of the way reinforcing bar, otherwise, cause that observation tube 2 and 2 Grouting Pipes 1 cannot be installed.
2 upper end of observation tube seals, and it is the material of annular transparent that one section of observation window 18, observation window 18, which are arranged, at 2 top of observation tube, is seen
It examines and camera and headlamp, stepper motor and column 17 is installed in window 18, camera and headlamp are mounted on horizontal stepping electricity
On arbor, which is in turn mounted on another vertical step motor axis, realizes camera and the horizontal rotation of 360 ° of headlamp
Turn and 15 ° are rotated up and down observation, vertical step motor is connect with column 17, is fixed on observation tube 2 in 2 lower end of observation tube.It sees
Examining on 2 hypomere side wall of pipe has location hole, is used for the height of position observation pipe 2.
Concrete construction method is as follows：
（1）Trolley top plate opening installs observation tube 2 and Grouting Pipe 1
Lining trolley crown template highest point builds this side, the distance of 1 lining thickness in perfusing hole 3 close to a upper lining papers
（In order to ensure observation tube 2 and Grouting Pipe 1, all in the space of reinforcing bar, which is big probable value）, increase peep hole and two
Injected hole（Wherein 1 Grouting Pipe 1 is as intermediate exhaust pipe or end parting line venting pipe or spare Grouting Pipe）, pay attention to reinforcing bar to be got out of the way,
It is no that it will cause cannot install observation tube 2 and 2 Grouting Pipes 1.General lining trolley crown template has 4 perfusing holes, by perfusion
Mouth quantity reserves the hole of 5 groups of installation observation tubes 2 and 2 Grouting Pipes 1, the hole position of intermediate 3 groups of installation observation tubes 2 and 2 Grouting Pipes 1
It sets and builds this side, the distance of 1 lining thickness close to a upper lining papers in perfusing hole 3；Each 1 group of installation observation tube 2 and 2 in both ends
20cm or so of the hole site of root Grouting Pipe 1 in lining cutting.4 groups of holes of number since being built a upper lining papers for lining cutting are
For one lining papers of the overlap joint block of lining cutting at one end, the other end is used there are no the case where lining cutting, and last 1 group is to be used for lining cutting
Trolley both ends all overlap the case where lining cutting and use.Device 4 is closed in welding installation under peep hole and injected hole, in observation tube
On bore closure device 4, observation tube 2 is installed.2 slip casting pores are made a call near each observation tube 2（Totally 10 slip casting pores）, installation
Grouting Pipe bore closure device 4 installs Grouting Pipe 1 and locating flange 5 on the closing device 4 of slip casting pore.When needing slip casting,
Filling system is connected in locating flange 5.
（2）It to be sought template in place according to two lining geometry.
After trolley and template, is measured " trying on " is carried out at ready 1 preformed hole of RPC Grouting Pipes, determine Grouting Pipe 1
It detects two thickness of the liner degree and whether meets design requirement, specific standards are subject to Grouting Pipe 1 and withstand splash guard length+2cm.
（3）The length of embedment of Grouting Pipe 1 is recorded on data board
According to（2）Middle operation marks record RPC pipe lengths of embedment after Grouting Pipe 1 withstands splash guard：Label should be item
Line, one is the line with two lining template exterior sheathings（For detecting whether two thickness of the liner degree meet the requirements）；Another is two lining templates
External mold printed line+2cm, i.e. RPC Grouting Pipes（Exhaust pipe）Cutting length.Cross recess is opened up in 1 upper surface of Grouting Pipe.By slip casting
Pipe 1 and observation tube 2 are respectively installed in flange, and fixed.Grouting Pipe 1 is fixed using joint steel pipe, after observation tube 2 rises tactile top
Determine that suitable location hole, bolt 19 pass through the location hole in perforation and observation tube 2 on locating flange 5, observation tube 2 consolidated
It is fixed.
（4）Two lining 3 concrete perfusions of perfusing hole simultaneously observe perfusion situation.
It when vault concrete is perfused, is observed using the observation probe 12 at the top of observation tube 2, observation probe 12 can be with
360 ° rotate horizontally and about 15 ° pitching, the perfusion situation of monitored concrete, until observing concrete close on observation tube 2
Observation tube 2 is taken out at end, closes the plate 10 on device 4, continues perfusion to 3 bleeding of next perfusing hole, replace perfusing hole 3 after
Continuous grouting.Successively to 3 concrete perfusion of next perfusing hole, aforesaid operations are repeated, until crown is all filled.If observation tube
2 see the concrete porosity of Tunnel Second Lining, and it is necessary to carry out, prepared by the injection slurry of next step and band is molded into slurry.
（5）Prepared by injection slurry and band is molded into slurry.
Vault slip casting in principle according to since low side toward slip casting high-end.After the completion of two lining filling concretes after 2~3h
It carries out, injecting paste material is using filling mortar, the ratio of mud 0.18；Slip casting is operated using dedicated slurrying slip casting all-in-one machine.
Slurries require continuous mixing, strictly monitor material utilization amount during mixing, it is ensured that the quality of slurries.Using Grouting Pipe 1 to secondary
Lining cutting area of coming to nothing between splash guard behind carries out slip casting, prevents two lining vaults from falling off and concrete leakiness.
（6）Observe pressure gauge and gas vent pulp
Slip casting end mark terminates slip casting with gas vent and end mould outflow underflow.If pulp pressure reaches at trolley formwork
1.0MPa does not go out underflow yet, should replace gas vent slip casting, until stopping note when intermediate row stomata and end parting line venting hole outflow underflow
Slurry.
（7）Slip casting terminates, and unloads slip casting machine hose, Grouting Pipe 1 is blocked closely knit.
（8）Removal locating flange 5 after slurries initial set.
Embodiment 2：The case where trolley end mould is removed, lining cutting is all overlapped for lining trolley both ends in the present embodiment
It uses, and 2 upper end trepanning of observation tube, by the way of being sealed upwards out of pipe.
（1）Tunnel double-lining lining trolley crown template trepanning
Lining trolley crown template highest point builds this side in perfusing hole 3 close to a upper lining papers, 1 lining thickness away from
From increase installation observation tube 2 and 2 Grouting Pipes 1（Wherein 1 Grouting Pipe 1 is as intermediate exhaust pipe or end parting line venting pipe or spare
Grouting Pipe）.General lining trolley crown template, there is 4 perfusing holes, by perfusing hole quantity, reserves 5 groups of installation observation tubes 2 and 2
The hole site of the hole of Grouting Pipe 1, intermediate 3 groups of installation observation tubes 2 and 2 Grouting Pipes 1 is among two neighboring perfusing hole 3；Both ends
The hole site of each 1 group of installation observation tube 2 and 2 Grouting Pipes 1, in the 20cm or so of lining cutting.Lining trolley crown template is opened
The hole of 5 installation observation tubes 2 is made a call in hole along the highest point of crown template longitudinal direction, and the closing device 4 of pore is observed in installation, it closes
It closes 4 to be welded below crown template, locating flange 5 is by bolt and closes the connection of device 4, opens in the upper surface for closing device 4
Equipped with sliding slot, plate 10 is installed in sliding slot, by sliding plate 10, peep hole can be closed or opened.It is closed in observation pore
It closes on device, observation tube 2 is installed.If there is reinforcing bar, observation tube 2 and Grouting Pipe 1 are all in the space of reinforcing bar, by 2 He of observation tube
Grouting Pipe 1 is arranged on same cross section, and circumferentially intermediate highest point is observation tube 2, each 1 Grouting Pipe in both sides of observation tube 2
1, intermediate highest point is leaned on as possible.Other 4 groups of observation tubes 2 and Grouting Pipe 1, and same setting.
（2）Require lining trolley in place according to two lining geometry.
Grouting Pipe 1 in the present embodiment is managed using RPC, when lining trolley formwork erection, ensures whole observation tubes 2 and Grouting Pipe 1
Position, all in the space of reinforcing bar, after the completion of formwork erection, installation observation tube 2, Grouting Pipe 1 and locating flange 5.It will be ready
RPC Grouting Pipes 1 by Grouting Pipe bore closure device 4 carry out " trying on " measure, determine RPC Grouting Pipes 1 installation length and
It detects two thickness of the liner degree and whether meets design requirement, specific standards are subject to RPC Grouting Pipes and withstand splash guard length+2cm.
（3）RPC pipe lengths of embedment are recorded on data board, cut Grouting Pipe 1.
According to（2）Middle operation marks record RPC pipe lengths of embedment after RPC Grouting Pipes 1 withstand splash guard：
Label should be a line, and one is the line with two lining template exterior sheathings（For detecting whether two thickness of the liner degree meet the requirements）；Another
For two lining template external mold printed line+2cm, i.e. RPC Grouting Pipes（Exhaust pipe）Cutting length.Ten are opened up in 1 upper surface of Grouting Pipe
Word slot.The locating flange 5 of Grouting Pipe 1 and Grouting Pipe 1 is installed, is inserted into after observation tube 2 and gear is installed on the locating flange 5 of peep hole
Plate 6 is fixed baffle 6 by bolt 9, and there is hole in 6 center of baffle.
（4）Two lining 3 concrete perfusions of perfusing hole simultaneously observe perfusion situation.
Two lining concrete are sequentially poured by the sequence of perfusing hole.Observation probe 12 is stretched out of observation tube 2 by operating lever 7
Enter, observation probe is mainly by miniature webcam and lighting lamp group at observation probe 12 is close to splash guard.Observation probe 12 makees 360 °
It rotates horizontally and 15 ° is rotated up and down observation, observation probe level is driven using stepping stepper motor 22 and be rotated up and down, or adopt
With manual actuation observation probe level and it is rotated up and down.Concrete completely comes up, and first takes out observation probe 12,7 other end of operating lever
By bulb hinged closure plate 8, the inner face of 2 upper end of observation tube has sealing ring, and operating lever 7 is inserted into observation tube 2 in turn, observation
Tube top end has the anchor ring of step as sealing ring, 8 upper surface of closure plate and the cooperation of sealing ring lower surface.Closure plate 8 is pressed in close
It is sealed in seal ring, further takes out observation tube 2, close the plate 10 on observation tube bore closure device, blocked peep hole and continue perfusion directly
To 1 bleeding of Grouting Pipe.Successively to 3 concrete perfusion of next perfusing hole, aforesaid operations are repeated, until crown is all filled.
The perfusion situation that probe 12 is observed according to the observation, decides whether to carry out following several steps, if it is observed that empty
The formation in hole must then follow the steps below.
（5）Prepared by injection slurry and band is molded into slurry.
Crown slip casting in principle according to since low side toward slip casting high-end.After the completion of two lining filling concretes after 2~3h
It carries out, injecting paste material is using filling mortar, the ratio of mud 0.18；Slip casting is operated using dedicated slurrying slip casting all-in-one machine.
Slurries require continuous mixing, strictly monitor material utilization amount during mixing, it is ensured that the quality of slurries.Using Grouting Pipe 1 to secondary
Lining cutting area of coming to nothing between splash guard behind carries out slip casting, prevents two lining crowns from falling off and concrete leakiness.
（6）Observe pressure gauge and gas vent pulp.
Slip casting end mark terminates slip casting with gas vent and end mould outflow underflow.If pulp pressure reaches at trolley formwork
To 1.0MPa, do not go out underflow yet, gas vent slip casting should be replaced, until stopping when intermediate row stomata and end parting line venting hole outflow underflow
Only slip casting.
（7）Slip casting terminates, and unloads slip casting machine hose, Grouting Pipe 1 is blocked closely knit.
（8）Removal locating flange 5 after slurries initial set.
Embodiment 3：The present embodiment is the lining methods for not removing former end die tip observation probe 12, is used for one end lining cutting
Overlap a lining papers to build the other end there are no the case where lining cutting to use, and the 2 upper end trepanning of observation tube in the present embodiment, using from
Pipe is outer to be pressed downward the mode being sealed.It is as follows：
（1）Lining trolley crown template trepanning
Lining trolley crown template highest point builds this side in each perfusing hole 3 close to a upper lining papers, 1 lining thickness
Distance（In order to ensure observation tube 2 and Grouting Pipe 1, all in the space of reinforcing bar, which is big probable value）, beat peep hole and note
Hole is starched, installation observation tube 2 and 2 Grouting Pipes 1 are increased（Wherein 1 Grouting Pipe 1 is as intermediate exhaust pipe or end parting line venting pipe or standby
Use Grouting Pipe）, it is noted that reinforcing bar is got out of the way, otherwise, causes that observation tube 2 and 2 Grouting Pipes 1 cannot be installed.General lining trolley top
Encircle template, there are 4 perfusing holes, by perfusing hole quantity, reserves the hole of 4 groups of installation observation tubes 2 and 2 Grouting Pipes 1, intermediate 3 groups of peaces
This side is built in the hole site for filling observation tube 2 and 2 Grouting Pipes 1 in perfusing hole 3 close to a upper lining papers, 1 lining thickness
Distance；20cm or so of the one group of hole at lining cutting end in lining cutting.After determining punch position, longitudinal along crown template
Highest point builds this side in perfusing hole close to a upper lining papers, the distance of about 1 lining thickness, makes 4 installation observation tubes 2
Hole（It is identical as perfusing hole quantity to observe hole number）, the closing device 4 of observation pore is installed, device 4 is closed and is welded on crown mould
Below plate, locating flange 5 is by bolt and closes the connection of device 4, sliding slot is offered in the upper surface for closing device 4, in sliding slot
Middle installation plate 10 can close or open peep hole by sliding plate 10.2 Grouting Pipes are made a call near each observation tube 2
Hole（Totally 8 slip casting pores）, the closing device 4 of Grouting Pipe is installed, Grouting Pipe 1 and note are installed on Grouting Pipe bore closure device 4
Starch the locating flange of pipe 1.
Observation tube 2 and Grouting Pipe 1, all in the space of reinforcing bar, the one end built in lining trolley without overlapping a upper lining papers,
Observation probe is installed outside crown Side Template highest.
（2）Require lining trolley in place according to two lining geometry.
Grouting Pipe 1 in the present embodiment is managed using RPC, and observation tube 2 is steel pipe, when lining trolley formwork erection, ensures all to see
The position of pipe 2 and Grouting Pipe 1 is examined all in the space of reinforcing bar, after the completion of formwork erection, installation observation tube 2, Grouting Pipe 1 and closes device
4.Ready Grouting Pipe 1 is carried out " trying on " by Grouting Pipe bore closure device 4 to measure, determines the installation length of Grouting Pipe 1
Whether meet design requirement with two thickness of the liner degree of detection, specific standards are subject to Grouting Pipe 1 and withstand splash guard length+2cm.
（3）1 length of embedment of Grouting Pipe is recorded on data board, cuts Grouting Pipe 1.
According to（2）Middle operation marks record RPC pipe lengths of embedment after RPC Grouting Pipes 1 withstand splash guard：
Label should be a line, and one is the line with two lining template exterior sheathings（For detecting whether two thickness of the liner degree meet the requirements）；Another
For two lining template external mold printed line+2cm, i.e. RPC Grouting Pipes 1（Exhaust pipe）Cutting length.Observation tube 2 is than 1 short 3- of Grouting Pipe
5cm or so.Cross recess is opened up in 1 upper surface of Grouting Pipe, Grouting Pipe 1 and locating flange 5 are installed.
（4）Two lining 3 concrete perfusions of perfusing hole simultaneously observe perfusion situation.
When crown concrete is perfused, the first concrete perfusion since the perfusing hole 3 built close to a upper lining papers, in observation tube 2
Equipped with operating lever 7,7 top of operating lever is equipped with closure plate 8, and 8 lower section of closure plate is equipped with observation probe 12, and observation probe 12 is by miniature
Camera and lighting lamp group are at observation probe is close to splash guard.12 rotation of observation probe is driven using stepping stepper motor 22, or
Person is using manual actuation observation probe level and is rotated up and down, and 360 ° of observation probe rotates horizontally and 15 ° are rotated up and down observation, mixes
When solidifying soil completely comes up, operating lever 7 is pulled down, seals the 8 inside matching of terrace and closure plate.
It exits observation tube 2 and removes observation tube 2, and be installed to next after closing peep hole to observation tube bore closure device 4
On a observation tube bore closure device.Continue perfusion until 3 bleeding of next perfusing hole, is successively perfused next perfusing hole 3 mixed
Solidifying soil, repeats aforesaid operations, until crown is all filled.If observation tube 2, see that the concrete of Tunnel Second Lining is empty
It is necessary to carry out, prepared by the injection slurry of next step and band is molded into slurry in hole.
（5）Prepared by injection slurry and band is molded into slurry.
Crown slip casting in principle according to since low side toward slip casting high-end.After the completion of two lining filling concretes after 2~3h
It carries out, injecting paste material is using filling mortar, the ratio of mud 0.18；Slip casting is operated using dedicated slurrying slip casting all-in-one machine.
Slurries require continuous mixing, strictly monitor material utilization amount during mixing, it is ensured that the quality of slurries.Using Grouting Pipe 1 to secondary
Lining cutting area of coming to nothing between splash guard behind carries out slip casting, prevents two lining crowns from falling off and concrete leakiness.
（6）Observe pressure gauge and gas vent pulp
Slip casting end mark terminates slip casting with gas vent and end mould outflow underflow.If pulp pressure reaches at trolley formwork
1.0MPa does not go out underflow yet, should replace gas vent slip casting, until stopping note when intermediate row stomata and end parting line venting hole outflow underflow
Slurry.
（7）Slip casting terminates, and unloads slip casting machine hose, Grouting Pipe 1 is blocked closely knit.
（8）Removal locating flange 5 after slurries initial set.
Embodiment 4, the peep hole and injected hole in the present embodiment are on the same circumference.
（1）Tunnel double-lining lining trolley crown template trepanning
Lining trolley crown template highest point builds this side in perfusing hole 3 close to a upper lining papers, 1 lining thickness away from
From increase installation observation tube 2 and 2 Grouting Pipes 1（Wherein 1 Grouting Pipe 1 is as intermediate exhaust pipe or end parting line venting pipe or spare
Grouting Pipe）.General lining trolley crown template, there is 4 perfusing holes, by perfusing hole quantity, reserves 5 groups of installation observation tubes 2 and 2
The hole site of the hole of Grouting Pipe 1, intermediate 3 groups of installation observation tubes 2 and 2 Grouting Pipes 1 is among two neighboring perfusing hole 3；Both ends
The hole site of each 1 group of installation observation tube 2 and 2 Grouting Pipes 1, in the 20cm or so of lining cutting.Lining trolley crown template is opened
The hole of 5 installation observation tubes 2 is made a call in hole along the highest point of crown template longitudinal direction, and installation observation tube bore closure device 4 closes dress
The upper surface for setting 4 offers sliding slot, and plate 10 is installed in sliding slot, by sliding plate 10, can close or open peep hole.
It closes device 4 to be welded below crown template, locating flange 5 closes device 4 by nut and Stud connection, in locating flange 5
Upper installation observation tube 2.Observation tube 2 and Grouting Pipe 1 are arranged in same cross all in the space of reinforcing bar for observation tube 2 and Grouting Pipe 1
On section, circumferentially intermediate highest point is observation tube 2, and each 1 Grouting Pipe 1 in both sides of observation tube 2 leans on intermediate highest point as possible.
It is equally equipped with below injected hole and closes device 4, in addition 4 groups of observation tubes 2 and Grouting Pipe 1, and same setting.Note that wanting
Reinforcing bar is got out of the way, otherwise, causes that observation tube 2 and 2 Grouting Pipes 1 cannot be installed.
（2）Grouting Pipe 1 in the present embodiment is managed using RPC, when lining trolley formwork erection, ensures whole observation tubes 2 and slip casting
The position of pipe 1, all in the space of reinforcing bar, after the completion of formwork erection, installation observation tube 2, Grouting Pipe 1 and slip casting flange 3.It will be ready to
RPC Grouting Pipes 1 by Grouting Pipe bore closure device 4 carry out " trying on " measure, determine that the installation of RPC Grouting Pipes 1 is grown
Whether degree and two thickness of the liner degree of detection meet design requirement, and specific standards withstand splash guard length+2cm with RPC Grouting Pipes and are
It is accurate.
（3）RPC pipe lengths of embedment are recorded on data board, cut Grouting Pipe 1.
According to（2）Middle operation marks record RPC pipe lengths of embedment after RPC Grouting Pipes 1 withstand splash guard：
Label should be a line, and one is the line with two lining template exterior sheathings（For detecting whether two thickness of the liner degree meet the requirements）；Another
For two lining template external mold printed line+2cm, i.e. RPC Grouting Pipes（Exhaust pipe）Cutting length.Observation tube 2 is than 1 short 5cm of Grouting Pipe
Left and right.Cross recess is opened up in 1 upper surface of Grouting Pipe.The locating flange 5 of Grouting Pipe 1 and Grouting Pipe 1 is installed, after being inserted into observation tube 2
Baffle 6 is installed on the locating flange 5 of peep hole, is fixed baffle 6 by bolt 9, there is hole in 6 center of baffle..
（4）Two lining 3 concrete perfusions of perfusing hole simultaneously observe perfusion situation.When crown concrete is perfused, first from close to upper one
The perfusing hole 3 that lining papers is built starts concrete perfusion, pops one's head in from being stretched into out of observation tube 2, and observation probe is mainly by miniature video camera
Head and lighting lamp group are at observation probe is close to splash guard.It drives observation probe 12 horizontal using stepper motor 22 and is rotated up and down,
Or it using manual actuation observation probe level and is rotated up and down.Observation probe 12 can make 360 ° and rotate horizontally and 15 ° of upper backspins
Turn observation, concrete completely comes up, and first takes out observation probe, after being loaded on observation tube closure plate, exits observation tube 2 to observation pore and closes
Device is closed, after closing observation pore, removes observation tube 2, and be installed on next observation tube bore closure device.Monitored concrete
Perfusion situation remove observation probe until observing concrete close to 2 upper end of observation tube, observation tube loaded onto by operating lever 7
The closure plate 8 at top further takes out observation tube 2, closes the plate 10 on observation pore, blocks peep hole and continues perfusion until Grouting Pipe
1 bleeding repeats aforesaid operations, until crown is all filled successively to 3 concrete perfusion of next perfusing hole
（5）If it is observed that the possibility for not having cavity to generate in filling process, then block Grouting Pipe 1 and extract, slip casting is closed
Plate 10 below hole above mounting flange 4 closes injected hole.
（6）If it is observed that cavity generates, then carries out band and be molded into slurry, to meet lining quality requirement.
Claims (11)
1. a kind of umbrella arch is without empty lining methods, it is characterised in that include the following steps：
One, injected hole and peep hole are opened up in trolley vault template, are welded under injected hole and peep hole and are closed device（4）；
Two, it is required after keeping trolley formwork in place according to two lining geometry, by Grouting Pipe（1）And observation tube（2）Across injected hole and sight
It examines hole and tries on measurement, determine Grouting Pipe（1）And observation tube（2）Installation length and detection two thickness of the liner degree whether meet design
It is required that；
Three, Grouting Pipe is installed（1）And observation tube（2）, it is inserted into Grouting Pipe（1）It is marked after withstanding splash guard and cuts Grouting Pipe
（1）, in Grouting Pipe（1）Upper surface opens up cross recess；Grouting Pipe 1 and observation tube 2 are fixed on closing device（4）On；
Four, crown two serves as a contrast concrete perfusion and observes perfusion situation, utilizes perfusing hole（3）It, will when crown concrete is sequentially perfused
Observation probe（12）From each observation tube（2）It extend into top to be observed, the perfusion situation of monitored concrete is mixed when observing
It is solidifying native close to observation tube（2）Observation tube is taken out when upper end（2）, continue perfusion until next perfusing hole（3）Bleeding replaces perfusion
Mouthful（3）Continue to be in the milk.
2. umbrella arch according to claim 1 is without empty lining methods, it is characterised in that after step 4, carry out following
Step：
Five, prepared by injection slurry and crown band is molded into slurry, utilizes Grouting Pipe（1）To secondary lining behind and splash guard between come to nothing area into
Row slip casting.
3. observing pressure gauge and gas vent pulp
Seven, slip casting terminates, and unloads slip casting machine hose, by Grouting Pipe（1）It blocks closely knit.
4. the umbrella arch according to right 1 is without empty lining methods, it is characterised in that after step 4, carry out following step
Suddenly：Five, Grouting Pipe is extracted（1）, block injected hole.
5. according to right 1-3 any one of them umbrella arch without empty lining methods, it is characterised in that in step 1, close
Device（4）Upper surface offers sliding slot, and plate is installed in sliding slot（10）, close device（4）Lower end passes through Stud connection positioning mode
It is blue（5）.
6. the umbrella arch according to claim 1-3 is without empty lining methods, it is characterised in that：In step 3, observation
Pipe（2）Touch splash guard（11）Retraction 3-5cm is fixed afterwards.
7. the umbrella arch according to claim 1-3 is without empty lining methods, it is characterised in that：In step 4, first take
Lower observation probe, by observation tube（2）Top seals, and then takes out observation tube（2）, close peep hole.
8. umbrella arch according to claim 6 is without empty lining methods, it is characterised in that：Observation tube（2）It is interior to be equipped with behaviour
Make bar（7）, operating lever（7）Top installation observation probe（12）.
9. umbrella arch according to claim 7 is without empty lining methods, it is characterised in that：Operating lever（7）Top connects
Closure plate（8）, observation tube（2）There is sealing terrace in upper end, pulls down operating lever（7）, seal terrace and closure plate（8）Inside matches.
10. umbrella arch according to claim 7 is without empty lining methods, it is characterised in that：Operating lever（7）The other end is logical
Cross bulb connection closure plate（8）, observation tube（2）The internal face of upper end has sealing ring, by operating lever（7）It is inserted into observation tube in turn
（2）And it pushes up, closure plate（8）Upper surface and the cooperation of sealing ring lower surface.
11. umbrella arch according to claim 7 is without empty lining methods, it is characterised in that：Injected hole and peep hole position
In two neighboring perfusing hole（3）Between and template both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126446.7A CN108316949B (en) | 2018-02-08 | 2018-02-08 | Tunnel roof arch hollow-free lining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810126446.7A CN108316949B (en) | 2018-02-08 | 2018-02-08 | Tunnel roof arch hollow-free lining method |
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| CN108316949A true CN108316949A (en) | 2018-07-24 |
| CN108316949B CN108316949B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810126446.7A Active CN108316949B (en) | 2018-02-08 | 2018-02-08 | Tunnel roof arch hollow-free lining method |
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| CN109488337A (en) * | 2018-11-20 | 2019-03-19 | 中铁上海工程局集团有限公司 | A kind of anti-come to nothing of tunnel double-lining concrete visualizes casting method |
| CN109488336A (en) * | 2018-11-13 | 2019-03-19 | 中铁二局集团有限公司 | A kind of tunnel double-lining vault pours observation method |
| CN110242324A (en) * | 2019-05-30 | 2019-09-17 | 平顶山平煤机煤矿机械装备有限公司 | Tunnel lining trolley secondary grouting device |
| CN110985041A (en) * | 2019-12-31 | 2020-04-10 | 中铁隧道局集团有限公司 | Construction method for processing sudden surge of separated double-hole tunnel |
| CN111058864A (en) * | 2019-11-29 | 2020-04-24 | 中铁九局集团第四工程有限公司 | Tunnel vault lining rear cavity high-pressure grouting auxiliary device |
| CN112502048A (en) * | 2020-12-08 | 2021-03-16 | 云南省建设投资控股集团有限公司 | Highway T roof beam hogging moment slip casting exhaust observation pipe |
| CN112709322A (en) * | 2020-12-26 | 2021-04-27 | 杭州均正建筑设计有限公司 | Bay window structure and construction method thereof |
| CN112879037A (en) * | 2021-04-22 | 2021-06-01 | 黄河交通学院 | Safe construction method for mine tunnel |
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| CN112879037A (en) * | 2021-04-22 | 2021-06-01 | 黄河交通学院 | Safe construction method for mine tunnel |
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