CN107288666B - A kind of pipeline original position Serial regulation system and method for adjustment - Google Patents
A kind of pipeline original position Serial regulation system and method for adjustment Download PDFInfo
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- CN107288666B CN107288666B CN201710666724.3A CN201710666724A CN107288666B CN 107288666 B CN107288666 B CN 107288666B CN 201710666724 A CN201710666724 A CN 201710666724A CN 107288666 B CN107288666 B CN 107288666B
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- tube coupling
- jacking
- original position
- antipriming
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title description 30
- 230000008878 coupling Effects 0.000 claims abstract description 87
- 238000010168 coupling process Methods 0.000 claims abstract description 87
- 238000005859 coupling reaction Methods 0.000 claims abstract description 87
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 32
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 22
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 210000002966 serum Anatomy 0.000 claims description 10
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000007569 slipcasting Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 238000010276 construction Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 239000004576 sand Substances 0.000 description 7
- 238000005553 drilling Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000011805 ball Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
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- 238000012407 engineering method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000004899 motility Effects 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of pipeline original position Serial regulation systems, including the antipriming of the adjacent tube coupling junction of pipeline is arranged in and the grouting device of the lower section injection slurries in the tube coupling of sinking and for downward immersed tube section is arranged in, it further include jacking apparatus, the jacking apparatus includes extending along duct orientation and being supported on the lifting beam in inner wall of the pipe and lower end is supported on lifting beam, upper end can be resisted against multiple hydraulic cylinders in inner wall of the pipe, and a part of the lifting beam is located at the sinking section of pipeline.The adjustment system has jacking apparatus, and pipeline homing as much as possible can be made by the top lift of hydraulic cylinder, improves the effect of Serial regulation.
Description
Technical field
The present invention relates to the LFM signal field in situ of the underground pipings such as more river more particularly to a kind of Serial regulation in situ systems
System and method of adjustment.
Background technique
In underground piping or Tunnel Engineering, for building or building the pipeline of completion, due to extraneous factor
Effect so that the tube coupling of composition pipeline generates offset or sinks, cause originally linear pipeline be deformed.
Pipeline original position Serial regulation construction method (hereinafter referred to as " linear adjusting method ") refer to using certain equipment and
Adjustment of the technological means to generating on mobile tube coupling progress position, so that the pipeline being deformed is restored to linear state.
Domestic linear adjusting method is mainly used in " Shield-bored tunnels ", and main method to be applied is slip casting skill
Art, i.e., to tunnel structure outside the soil body carry out slip casting, the pressure and its dilatancy transmitted by slurries adjust tunnel structure
Position, and solidification to adjust the tunnel result behind position and stablizes after being condensed using slurries.For example, Shanghai rail transit
Shield-tunneling construction of No. 2 line running tunnels due to creating No. 11 lines thereunder, under causing No. 2 line partial regions of top to occur
It is heavy.Grouting method then is carried out in sinking tunnel bottom and carries out Serial regulation, the tunnel structure of sedimentation is jacked, so that tunnel is whole
Reply original linear state.
Pipe jacking construction technique and traditional Shield Construction Technique are close but not exactly the same, therefore can use for reference shield tunnel
The LFM signal construction method in road, but need to be modified and adjusted according to the uniqueness of jacking construction.Pipe jacking method and shield
The maximum difference of structure engineering method is: the pipeline or tunnel structure of shield method after front digging machine excavation can by pipeline or
Tunnel structure is fixedly mounted, and push pipe rule needs to push using the tube coupling before subsequent tube coupling jacking and always always,
Before pipeline perforation, all tube couplings all remain motion state.Therefore, different from shield method, pipe jacking method is focused on reducing
The friction of pipeline outer wall structure and soil layer forms the mud film of effective lubrication drag reduction between pipeline and soil layer, is very heavy
It wants.
1) current linear adjusting method is mainly comprised the steps that the tube coupling sealing to sink on pipeline；2) to sinking
Tube coupling at grouting in soil mass.But the prior art for executing above-mentioned two step has the disadvantages that
1. traditional shield grouting means are not suitable for pipe-jacking project
Different from shield method, before pipeline is not penetrated completion, all tube couplings require in the earth formation pipe jacking method
Movement, it is therefore necessary to keep the lubricity between pipeline outer wall and soil layer, keep the formation of pipeline periphery soil layer mud film.
Injection water method for slurry is built in tunnel or pipeline in shield method and is often used, and corresponding theoretical and apply skill
Art is mature.Although injection cement grout exchanges homogeneous tube road or tunnel structure has a significant effect, cement grout meeting
Condensation hardening can seriously destroy the formation of mud film, cause resistance mistake in pipeline jack-in process if applied in push bench process
Greatly.Therefore traditional shield grouting means are not particularly suited in the LFM signal of push pipe, need to be added according to the characteristics of pipe jacking method
With improve and perfect.
2. traditional antipriming is not suitable for LFM signal construction
Pipeline is made of the linking of tube coupling one by one, and poor contact easily generates crack between tube coupling, and extraneous water and soil is caused to seep
Enter.Therefore often measures of preventing water is used to the contact zone between tube coupling.Traditional antipriming is only for static pipeline
For, if tube coupling moves or dislocate, often antipriming can fail.And in the Serial regulation of pipeline original position, tube coupling meeting
Biggish movement occurs, while to guarantee to keep good water-stagnating effect before and after tube coupling is mobile, it is therefore desirable to using special
Seal installation optimizes processing.
3. settling amount is big, single means are not able to satisfy the needs adjusted in situ
The deflection of pipeline or tunnel that traditional Serial regulation means are often directed to is smaller, when the adjustment amount of pipeline is more than
When certain value, the requirement of jacking duct height is often not achieved using single adjustment means.
Meanwhile limitation is suffered from using the means of adjustment pipeline in the stratum for passing through river, while being contemplated that and adjusting
During whole, function influence of the extraneous Water And Earth Pressures to pipeline.And these factors Engineering Projects passing before often all
It is not involved with.
4. more river pipeline complex geologic conditions, correlation engineering case is few, lacks corresponding theory research
Traditional pipeline and Tunnel Engineering is often in the good region of geological condition, however as the hair of urban construction
Exhibition, some engineerings in complex geological condition also gradually increase.The more river pipeline engineering engineering that then belongs to complex geologic conditions
Project.Since the theoretical research and referential Engineering Projects, the more difficulty of construction of Jiang Guandao that lack related maturation are non-
Chang great.
Stratum in river bottom, moisture content is high and hydraulic pressure is high, once pipeline leaks in construction process, underground water
Pipeline can be poured in mud, is done great damage.The axis bending or deformation that more Jiang Guandao occurs, often caused by building
Pipeline leaks in the process, and pipeline water and soil is caused to pour in.Since around water and soil pours in inside pipeline, pipeline is caused
Surrounding soil Stratum Loss is serious, thus section of tubing structure is caused to be sunk, and due to part tube coupling uneven subsidence, leads to pipeline
Axis bending, deformation.
Summary of the invention
The main purpose of the present invention is to provide a kind of pipeline original position Serial regulation system and method for adjustment, the system and sides
Method can adapt to pipeline commissioning caused by different factors, and keep the Serial regulation effect of pipeline more preferable using multiple means.
To achieve the above objectives, the technical solution adopted by the present invention are as follows: a kind of pipeline original position Serial regulation system, including set
Set the adjacent tube coupling junction of pipeline antipriming and sinking is set tube coupling in and be used for downward immersed tube section lower section
Inject the grouting device of slurries, which is characterized in that further include jacking apparatus, the jacking apparatus includes extending along duct orientation
And be supported on the lifting beam in inner wall of the pipe and lower end be supported on lifting beam, upper end can be resisted against it is multiple in inner wall of the pipe
Hydraulic cylinder, a part of the lifting beam are located at the sinking section of pipeline.
Preferably, the length of the lifting beam be greater than sinking pipeline length, the both ends of the lifting beam be supported on it is non-under
On the inner wall in immersed tube road.
Preferably, the lifting beam is supported on the inner wall of pipeline by jacking pedestal, and the upper end of the hydraulic cylinder passes through
Jacking boots plate be resisted against on the inner wall of pipeline, it is described jacking pedestal and jacking boots plate and pipeline contact surface it is arc-shaped.
Preferably, the antipriming includes internal expension ring antipriming, and the internal expension ring antipriming includes for by two
The waterstop and the two sides of waterstop are respectively fixed to the pressing plate on the adjacent tube coupling that the junction of adjacent tube coupling covers.
Preferably, after waterstop is fixed on two adjacent tube couplings by pressing plate, the waterstop is in the radial direction side along tube coupling
There is inside protrusion upwards.
Preferably, agent is pasted in oiling between the waterstop and tube coupling.
Preferably, the antipriming includes inflatable antipriming, and the inflatable antipriming includes coaxially setting
The type inflatable waterstop and sealing packing setting the steel collar in pipeline and being arranged on steel collar periphery, it is described inflatable
The outer diameter of formula waterstop and sealing packing is greater than the internal diameter of pipeline.
Preferably, a certain proportion of polyacrylamide is is incorporated into shape in bentonite by the slurries that the grouting device uses
At mixed serum.
Preferably, the injection slurry of the grouting device is drawn out in the soil layer below pipeline by conduit, the conduit
Serum outlet end is sealed using flexible tape.
Preferably, the adjustment system further includes being arranged on adjacent tube coupling and adjacent tube coupling being applied to the power moved toward one another
Drawknot device.
Compared with prior art, the invention has the following advantages:
1) the adjustment system increases in the purpose that the prior art realizes jacking by grouting device is arranged in pipeline
Jacking apparatus, which passes through the hydraulic cylinder being arranged on jacking girder steel and realizes jacking, and rigidity is good, and then can reach
Preferably jacking effect；And by being used cooperatively with grouting device, when jacking while to the lower section of pipeline inject slurries
In time to fill the gap between pipeline and soil layer, pipeline is formed and is supported, and then can be realized better Serial regulation
Effect；
2) slurries of grouting device use mixing liquid, while guaranteeing to pipeline support, will not hinder pipeline
Axial movement；
3) antipriming of the adjustment system is used cooperatively using internal expension ring antipriming and inflatable antipriming, is used
Multiple means carry out sealing, can reach better water-stagnating effect.
Detailed description of the invention
Fig. 1 is the perspective view of internal expension ring antipriming of the invention
Fig. 2 is the sectional view of internal expension ring antipriming and tube wall cooperation of the invention
Fig. 3 is the sectional view of inflatable antipriming and tube wall cooperation of the invention
Fig. 4 is the structure chart of grouting device of the invention
Fig. 5 be jacking apparatus of the invention from end when view
Fig. 6 is the side view of jacking apparatus of the invention
Fig. 7 is the installation diagram of drawknot device of the invention on tube wall
Fig. 8 is the cross-sectional view of drawknot device of the invention
Fig. 9 is structure chart when drawknot device of the invention is observed along the axial direction of pipeline
Figure 10-12 is the course of work of the hydraulic cylinder of jacking apparatus of the invention
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
Embodiment one
A kind of pipeline original position Serial regulation system, including multiple antiprimings 1, jacking apparatus 2 and grouting device 4.Institute
It states antipriming 1 and the junction of adjacent tube coupling in sinking pipeline is set to fill up the gap generated because tube coupling 600 misplaces, together
When can also play the role of sealing.The jacking apparatus 2 is arranged in pipeline the tube coupling 600 of sinking is lifted to original
Position, the grouting device 4 is to the lower section soil layer slip casting after being lifted to the tube coupling 600 of sinking.
As shown in Figure 1, the antipriming 1 uses internal expension ring antipriming, each internal expension ring antipriming includes one
A rubber pad waterstop 11 and two arc keeper plate of steels 12, the rubber pad waterstop 11 have certain width, are fitted in
On the inner wall of two adjacent and dislocation tube couplings 600, the gap that such rubber pad waterstop 11 can misplace is filled up, and energy
Enough prevent the water in extraneous soil layer from entering in pipeline.The two sides of rubber pad waterstop 11 are provided with an arc keeper plate of steel 12
Rubber pad waterstop 11 to be fixed on the tube coupling 600 of two dislocation.Specifically, the arc keeper plate of steel 12 by it is multiple not
The tempering screw 13 that becomes rusty is fixed on corresponding tube coupling 600.Meanwhile can also be prevented by the extruding of arc keeper plate of steel 12 water from
Binding face between tube coupling 600 and arc keeper plate of steel 12 is flowed into tube coupling 600
As shown in Fig. 2, when in order to guarantee that the gap between two adjacent and dislocation tube couplings 600 changes in a certain range
Rubber pad waterstop 11 will not be had an impact, the rubber pad waterstop 11 is after being fixed on tube coupling 600, with two tube couplings
Between the corresponding position in gap at formed towards pipeline center protrusion 14, protrusion 14 between two tube couplings 600 gap change
Change plays buffer function, avoids and is stretched and damaged to rubber pad waterstop 11 during gap changes.
Two arc keeper plate of steels 12 are fixed by the rubber fastening band 11 for being located at raised 14 two sides respectively.
It, can be by rubber pad waterstop 11 in order to further prevent water to enter in pipeline from the gap of two tube couplings 600
It is adhered on the inner wall of tube coupling 600 by pasting agent.
Jacking apparatus 2 is installed after the installation for completing antipriming 1, the tube coupling 600 of sinking is jacked.
As seen in figs. 5-6, the jacking apparatus 2 includes jacking hydraulic cylinder 21, jacking girder steel 22, jacking pedestal 23 and top
Boots plate 24 is risen, the jacking girder steel 22 extends along the axis of pipeline.And the length of girder steel 22 is jacked slightly larger than sinking pipeline
Length, the jacking girder steel 22 is supported on the inner wall below pipeline by multiple jacking pedestals 23, part of to jack base
Seat 23 is supported on the non-sinker area of pipeline, is arranged at jacking pedestal 23, Jin Eryou in the non-sinker area of pipeline commissioning area two sides
Have always from the support in normal position pipeline in jacking girder steel 22, and then can guarantee that jack girder steel 22 has always
Normal position.
The lower end of the hydraulic cylinder 21 is supported on jacking girder steel 22, and upper end is resisted against above pipeline by jacking boots plate 24
Inner wall on, and then the jacking to sinking tube coupling 600 is realized by the elongation of hydraulic cylinder 21, keeps the tube coupling 600 extensive as much as possible
Multiple normal position.The one side that the jacking boots plate 24 is contacted with inner wall of the pipe is the arc and pipeline of cambered surface and the cambered surface
Inner wall is consistent, and the top lift of hydraulic cylinder 21 can be enable to be applied to pipeline as homogeneously as possible by jacking boots plate 24
On, prevent stress concentrate and cause partial region top lift excessive, more than pipeline ultimate bearing capacity and destroy.It is described
Jacking pedestal 23 has same effect.
Specifically, the jacking girder steel 22 is spliced using H profile steel, has two rows, in the jacking girder steel 22 of each row
On be provided with multiple hydraulic cylinders 21, and the hydraulic cylinder 21 on two rows of jacking girder steels 22 is parallel to each other two-by-two and relative under not
The center line in immersed tube road is symmetrically to guarantee the symmetry of support force.And the adjacent hydraulic cylinder 21 being located on same jacking girder steel 22
The distance between the identical uniformity to guarantee pipeline stress in the axial direction.
As shown in figure 4, the grouting device 4 includes conduit 41 and high-pressure soil sand pump (not shown), the high-pressure soil sand pump
Outlet be connected with the arrival end of conduit 41 by high-pressure hose, tube wall of the outlet end of the conduit 41 below pipeline is stretched
The outside of pipeline is arrived out, and the entrance of the high-pressure soil sand pump is connected with the device for storing slurries, and then high-pressure soil sand pump will be starched
Liquid is sent to conduit 41 and is discharged to outside pipeline.The middle part of the conduit 41 is provided with latus rectum ball valve 42 so that conduit 41 can be with
When close and be connected.
Grouting device 4 first drills on duct wall in installation process, smears anchoring adhesive around drilling later, finally inserts
Enter conduit 41.Since anchoring adhesive and concrete and metal material can be good at combining, and after its condensation cure, intensity is almost
Equivalent reinforced steel bar strength, therefore can effectively fill up the gap between drilling and metal tube.However, if anchoring adhesive once flows into
Metal tube will be blocked to inside metal tube, after solidification and is difficult to dredge, and therefore, in order to prevent such a situation from occurring, led
Before the insertion drilling of pipe 41, is sealed in insertion one end using flexible tape, prevent anchoring adhesive to be flowed into pipe, and flexible tape
Anti-pressure ability is small, and during high-pressure injection later, injection material can break through flexible tape under high pressure, is smoothly injected into
Pipeline external.
The junction of the conduit 41 and high-pressure hose is provided with packing antipriming 43, passes through packing antipriming 43
It can be improved the bearing capacity of junction, and then prevent junction from leaking.
The slurries are that have the bentonite of certain lubrication drag reduction property and mix a certain proportion of polyacrylamide wherein
The mixed serum of amine (PAM), which has the following characteristics that 1) be injected into stratum after, can to pipeline generate one orientation
On jacking stress；2) in transport with certain mobility, while there is certain stabilization again after being injected into the soil body
Property, and then the mixed serum can squeeze into the soil body by conduit, but enter after stratum, it will not expand around on a large scale
It dissipates, therefore after injecting the mixed serum, pipeline will not sink again in a short time；3) drag reduction with height lubricates
Performance, pipeline be still able to after carrying out Serial regulation continue jacking, will not between pipeline and stratum lubricity and
The formation of mud sleeve has an impact.
Meanwhile as Figure 7-9, in order to preferably achieve the purpose that Serial regulation, the adjustment system further includes setting
Pipeline drawknot device 3 in the junction in adjacent tube coupling 600.The pipeline drawknot device includes being separately positioned on two adjacent tubes
The drawknot screw 32 that drawknot pedestal 31 on section 600 is connected with by two drawknot pedestals 31, is provided on the drawknot pedestal 31
Mounting hole 34, the drawknot pedestal 31 are fixed on the inner wall of tube coupling 600 by penetrating bolt in mounting hole 34, the drawknot
Pedestal 31 is the consistent arc-shaped base of inner wall arc with tube coupling 600.It is additionally provided with connecting plate 33 on the drawknot pedestal 31,
The through-hole passed through for drawknot screw 32 is provided on connecting plate 33, during installation, the drawknot bottom on two adjacent tube couplings 600
Threaded hole on seat 31 is oppositely arranged, and the drawknot screw 32 is placed through on the drawknot pedestal 31 on two adjacent tube couplings 600
Through-hole has screwed nut at the both ends of drawknot screw 32, and nut is resisted against the outside of drawknot pedestal 31 and then passes through rotation
Stubborn nut can make the drawknot pedestal 31 being located on two adjacent tube couplings 600 constantly close to the gap made between two tube couplings 600 in turn
Position when constantly reducing, and then two-phase union 600 being made to be restored to non-sinking as much as possible.
Specifically, it is provided with pipeline drawknot device 3 in the junction of all adjacent tube couplings 600 of sinking pipeline, and
Multiple pipeline drawknot devices 3, multiple pipeline drawknots of same junction are provided in the junction of each adjacent tube coupling 600
Device 3 is uniformly arranged the uniformity to guarantee 600 stress of tube coupling in circumferencial direction.
Embodiment two
The difference of embodiment two and embodiment one is that antipriming uses inflatable antipriming 5 to replace internal expension ring
Antipriming.
The inflatable antipriming includes that diameter is slightly less than the steel collar 51 of internal diameter of the pipeline and steel collar 51 is arranged in
Inflatable watertight rubber band 52 and compressible sealing packing 53 on circumferential surface, and be all provided in steel collar 51 along axial two sides
Inflatable watertight rubber band 51 and sealing packing 53 is equipped with to cooperate with tube coupling 600 adjacent with two respectively and then connect tube coupling 600
The clearance seal at place is connect, and the inflatable watertight rubber band 52 and compressible sealing packing 53 are in steel collar 51 and pipeline
Inner wall between be extruded with tube wall be in close contact so that realize sealing effect.
The case where being more than 20cm for the gap between adjacent dislocation tube coupling 600, it can suitably increase inflatable sealing
The quantity of rubber strip 52 or compressible sealing packing 53, for example, adding two on the basis of internal one of sealing packing 53
Road inflatable watertight rubber band 52.When increasing inflatable watertight rubber band, each watertight rubber band 52 of reasonable Arrangement and sealing
The position of packing 53, blending bolt are fixed, prevent watertight rubber band 52 and sealing packing 53 because be not fixed firmly by due to fall off.
Larger due to misplacing between tube coupling 600, the bell and spigot 56 for connecting tube coupling is often fallen off, for this purpose, in steel bushing
It is provided with the valve 54 with the gap area of adjacent 600 junction of tube coupling on ring 51, is filled by valve into gap a large amount of
Tail seal grease of shield 55, to reinforce water-stagnating effect.Wherein, the company that the bell and spigot 56 connects 600 to seal two adjacent tubes
Place is met, when tube coupling 600 misplaces larger, bell and spigot 56 cannot play the effect of sealing, just need to inject tail seal grease of shield at this time
55 to play certain water-stagnating effect.
Inflatable antipriming 5 in the embodiment is suitable for tube coupling and misplaces larger situation, and interior in embodiment one
Tensioner ring antipriming is adapted to the lesser situation of tube coupling dislocation, and in the pipeline of the same sinking, some tube coupling misalignments
Seriously, some tube coupling misalignments are slight, therefore, may use simultaneously in the pipeline of the same sinking and arrive internal expension ring sealing
Device and inflatable antipriming.
The method of adjustment of the adjustment system is as follows:
Step 1: installation antipriming
Misplacing, lighter tube coupling installs internal expension ring antipriming, is first laid with rubber pad waterstop 11, utilizes arc later
Keeper plate of steel 12 pushes down waterstop two sides, is finally fixed with bolt.For the tube coupling installation inflatable sealing dress for misplacing more serious
It sets, first with the gap between 52 sealed tube wall of inflatable watertight rubber band and steel collar 51, later in inflatable watertight rubber
Inside with 52 increases compressible sealing packing 53 together, finally fills tail seal grease of shield between the gap of adjacent tube coupling
55 are sealed.
Before antipriming is installed, need first to clear up installation site to reach better water-stagnating effect.
Step 2: installation drawknot device
In the tube coupling of production pipeline, the preformed hole of installation drawknot pedestal 31 is reserved on tube coupling, is provided in preformed hole
Internal screw thread.When installing drawknot device, first the mounting hole on drawknot pedestal 31 is aligned with preformed hole and is installed by screw solid
It is fixed, drawknot screw 32 is then each passed through the through-hole hole on the drawknot pedestal 31 being mounted on adjacent tube coupling and by screwing position
Drawknot is realized in the nut on drawknot screw 32.
Step 3: installation grouting device
Firstly, drilling outward from inner wall of the pipe, the hole bored is to infuse native hole, but not drill through, and reserves 5cm pipe thickness
(if drilling through, extraneous water and soil can pour in pipe)；Then native hole is infused in cleaning, and the inside is prevented to be mixed into impurity effect subsequent operation；It connects
Pour into effective reinforcement glue, and the conduit of grouting device 41 is inserted into the native hole of note, effective reinforcement glue intensity is waited to reach design requirement；So
Afterwards, latus rectum ball valve 42 is installed, and native hole will be infused and drilled through, is poured in prevent hole from drilling through rear extraneous water and soil, ball valve should be closed in time；
Finally, corresponding packing sealing and high-pressure hose are installed in 41 top of conduit.High-pressure hose is connected with high-pressure soil sand pump, note
Soil material (mixed serum) is injected into the soil layer below pipeline by high-pressure soil sand pump, conduit 41.
The mixed serum of injection is deployed using bentonite original soil, water and polyacrylamide (PAM), slump control
In 100mm between 130mm.Slurries are mixed and stirred using mortar mixer, are fitted into reservoir bag later, be transported to inside pipeline to
With.
Step 4: the structure for installing jacking apparatus above-mentioned attaches it in pipeline 600.
When carrying out pipeline original position LFM signal, successively start drawknot device, grouting device and jacking apparatus, and
During adjustment, it is adjusted in the order described above repeatedly and is to the last restored to position that is in situ or needing.
The raising order of jacking process can be carried out specifically according to field condition, preferably using behind first centre two sides it is suitable
Sequence is jacked, and concrete operations are as follows:
Firstly, as shown in Figure 10, the hydraulic cylinder (3,4,5, No. 6 hydraulic cylinders) of starting jacking apparatus intermediate region is pushed up
It rises, while injecting mixed serum, observation jacking situation to sinking section tube coupling (18 to No. 22 tube couplings in figure) using high-pressure soil sand pump；
Later, as shown in figure 11, intermediate hydraulic cylinder, starting left side hydraulic cylinder (5-8 hydraulic cylinder), while immersed tube section note soil downwards are withdrawn
(19 to No. 23 tube couplings in figure)；Finally, as shown in figure 12, withdrawing left side hydraulic cylinder, (No. 1-4 hydraulic for starting right side hydraulic cylinder
Cylinder), and immersed tube section infuses native (17 to No. 21 tube couplings in figure) downwards.The moment is wanted to pay attention to observing pipe seam variation and seep during jacking
Leak situation.
Entire jacking process slowly carries out, and pipeline should observe variable quantity, the tube coupling in tube coupling gap in time during jacking
Jacking amount, accurate recording note soil amount, jacking amount data according to the native sequence of the data of continuous renewal guidance beating then and beat soil
Amount, makes this section of sedimentation pipe nodel line close to straight line.
The packing impaction state that observation inflatable antipriming is needed during jacking, in the motion process of pipeline jacking,
Pipeline is linear to change, and packing pine excessively will affect its water-stagnating effect, and tension will limit the motility of tube coupling；
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (9)
1. a kind of pipeline original position Serial regulation system, antipriming and setting including the adjacent tube coupling junction of pipeline is arranged in
The grouting device of lower section injection slurries in the tube coupling of sinking and for downward immersed tube section, which is characterized in that further include jacking
Device, the jacking apparatus include extending along duct orientation and being supported on the lifting beam in inner wall of the pipe and lower end is supported on top
Rise beam on, upper end can be resisted against the multiple hydraulic cylinders in inner wall of the pipe, a part of the lifting beam is located at the sinking of pipeline
Section,
Wherein, the lifting beam is supported on the inner wall of pipeline by jacking pedestal, and the upper end of the hydraulic cylinder passes through jacking boots
Plate is resisted against on the inner wall of pipeline, it is described jacking pedestal and jacking boots plate and pipeline contact surface it is arc-shaped.
2. a kind of pipeline original position Serial regulation system according to claim 1, which is characterized in that the length of the lifting beam
Greater than the length of sinking pipeline, the both ends of the lifting beam are supported on the inner wall of non-sinking pipeline.
3. according to a kind of pipeline original position Serial regulation system described in claim 1, which is characterized in that the antipriming includes interior
Tensioner ring antipriming, the internal expension ring antipriming include for by the waterstop of the junctions of two adjacent tube couplings covering and will be only
The two sides of water band are respectively fixed to the pressing plate on the adjacent tube coupling.
4. according to a kind of pipeline original position Serial regulation system as claimed in claim 3, which is characterized in that fix waterstop in pressing plate
After on to two adjacent tube couplings, the waterstop has inside protrusion along tube coupling in the radial direction.
5. according to a kind of pipeline original position Serial regulation system as claimed in claim 4, which is characterized in that the waterstop and tube coupling it
Between oiling paste agent.
6. according to a kind of described in any item pipeline original position Serial regulation systems of claim 1-5, which is characterized in that the sealing dress
It sets including inflatable antipriming, the inflatable antipriming includes that the steel collar being placed coaxially in pipeline and setting exist
The outer diameter of type inflatable waterstop and sealing packing on steel collar periphery, the type inflatable waterstop and sealing packing is big
In the internal diameter of pipeline.
7. according to a kind of described in any item pipeline original position Serial regulation systems of claim 1-5, which is characterized in that the slip casting dress
The slurries that use are set as a certain proportion of polyacrylamide is incorporated into the mixed serum formed in bentonite.
8. according to a kind of pipeline original position Serial regulation system as claimed in claim 7, which is characterized in that the slurries of the grouting device
It is drawn out in the soil layer below pipeline by conduit, the serum outlet end of the conduit is sealed using flexible tape.
9. according to a kind of described in any item pipeline original position Serial regulation systems of claim 1-5, which is characterized in that further include setting
Apply the drawknot device of the power moved toward one another on adjacent tube coupling and by adjacent tube coupling.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488535A (en) * | 2018-06-20 | 2018-09-04 | 上海公路桥梁（集团）有限公司 | A kind of inflatable sealing internal expension ring device for repairing underground piping infiltration |
| CN109340454B (en) * | 2018-09-27 | 2020-09-04 | 上海公路桥梁（集团）有限公司 | Reinforced concrete jacking pipe deviation rectifying method |
| CN109538824B (en) * | 2018-12-28 | 2024-06-18 | 中国电建集团福建省电力勘测设计院有限公司 | Heavy-calibre reinforced concrete electric power push pipe structure that little camber curve jacking was used |
| CN109949690B (en) * | 2019-03-28 | 2024-05-07 | 广州市市政工程设计研究总院有限公司 | Vertical jacking model test device and method for shield vertical shaft |
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