CN107288666A - A kind of pipeline Serial regulation system in situ and method of adjustment - Google Patents
A kind of pipeline Serial regulation system in situ and method of adjustment Download PDFInfo
- Publication number
- CN107288666A CN107288666A CN201710666724.3A CN201710666724A CN107288666A CN 107288666 A CN107288666 A CN 107288666A CN 201710666724 A CN201710666724 A CN 201710666724A CN 107288666 A CN107288666 A CN 107288666A
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- Prior art keywords
- pipeline
- tube coupling
- jacking
- regulation system
- antipriming
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- 230000033228 biological regulation Effects 0.000 title claims abstract description 26
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title description 27
- 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
- 239000002689 soil Substances 0.000 claims description 33
- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 21
- 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 11
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 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
- 230000000630 rising effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 17
- 238000010276 construction Methods 0.000 description 9
- 239000004576 sand Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 230000008569 process 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
- 239000004519 grease Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 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 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
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000011440 grout Substances 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 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
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013005 condensation curing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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 Serial regulation system in situ, antipriming including the adjacent tube coupling junction that is arranged on pipeline and it is arranged in the tube coupling of sinking and injects the grouting devices of slurries for the lower section of downward immersed tube section, also include jacking apparatus, the jacking apparatus includes extending along duct orientation and is supported on the lifting beam on inner-walls of duct and lower end is supported on lifting beam, upper end can be resisted against the multiple hydraulic cylinders on inner-walls of duct, and a part for 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, the effect of Serial regulation is improved.
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 system in situ
System and method of adjustment.
Background technology
In underground piping or Tunnel Engineering, the pipeline for building or having built completion, due to extraneous factor
Effect so that the tube coupling of composition pipeline produces skew or sunk, 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 on the technological means tube coupling progress position mobile to producing so that the pipeline being deformed returns to linear state.
Domestic linear adjusting method is mainly used in " Shield-bored tunnels ", and the method mainly applied is slip casting skill
Art, i.e., to tunnel structure outside the soil body carry out slip casting, the pressure transmitted by slurries and its dilatancy adjust tunnel structure
Position, and solidification make it that the tunnel result after adjustment position is stable after being condensed using slurries.For example, Shanghai rail transit
No. 2 line running tunnels are caused under No. 2 line subregions of top occur due to the shield-tunneling construction of newly-built No. 11 lines thereunder
It is heavy.Then grouting method is carried out in sinking tunnel bottom carry out Serial regulation, the tunnel structure of jacking sedimentation so that tunnel is overall
Reply original linear state.
Pipe jacking construction technique and traditional Shield Construction Technique are close but incomplete same, therefore can use for reference shield tunnel
The LFM signal construction method in road, but need to be changed 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 promote using the tube coupling before tube coupling jacking below and always always,
Before pipeline insertion, 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
Want.
Current linear adjusting method is mainly included the following steps that：1) the tube coupling sealing to sinking on pipeline；2) to sinking
Tube coupling at grouting in soil mass.But the prior art for performing above-mentioned two step has the disadvantages that：
1. traditional shield grouting means are not suitable for pipe-jacking project
Different from shield method, pipe jacking method is before the non-through completion of pipeline, and all tube couplings are required in the earth formation
Motion, it is therefore necessary to keep the lubricity between pipeline outer wall and soil layer, keeps the formation of the peripheral soil layer mud film of pipeline.
Injection water method for slurry is built in tunnel or pipeline in shield method and often used, and corresponding theoretical and apply skill
Art is ripe.Although injection cement grout exchanges homogeneous tube road or tunnel structure has a significant effect, cement grout meeting
Hardening is condensed, if applied in push bench process, the formation of meeting heavy damage mud film causes resistance mistake in pipeline jack-in process
Greatly.Therefore traditional shield grouting means are not particularly suited in the LFM signal of push pipe, it is necessary to be added according to the characteristics of pipe jacking method
With improve and it is perfect.
2. traditional antipriming is not suitable for LFM signal construction
Pipeline is made up of the linking of tube coupling one by one, and loose contact easily produces crack between tube coupling, causes extraneous water and soil to ooze
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 is moved or dislocate, often antipriming can fail.And in pipeline Serial regulation in situ, tube coupling meeting
Occurs larger movement, while to ensure to keep good water-stagnating effect before and after tube coupling is moved, it is therefore desirable to using special
Seal installation optimizes processing.
3. settling amount is big, the need for single means can not meet adjustment in situ
The pipeline or the deflection in tunnel that traditional Serial regulation means are often directed to are smaller, when the adjustment amount of pipeline exceedes
During certain value, the requirement of jacking duct height is not often reached using single adjustment means.
Meanwhile, limitation is suffered from using the means of adjustment pipeline in the stratum for pass through river, while it is contemplated that adjusting
During whole, the function influence of extraneous Water And Earth Pressures to pipeline.And these factors in Engineering Projects passing before often all
It is not involved with.
4. getting over river pipeline complex geologic conditions, correlation engineering case is few, lacks corresponding theory research
Traditional pipeline and Tunnel Engineering are often in the good region of geological condition, however as the hair of urban construction
Exhibition, some engineerings for being in complex geological condition also gradually increase.More river pipeline engineering then belongs to the engineering of complex geologic conditions
Project.Due to the theoretical research for lacking related maturation and referential Engineering Projects, therefore more Jiang Guandao difficulty of construction is non-
Chang great.
Stratum in river bottom, moisture content is high and hydraulic pressure is high, once pipeline is leaked during building, underground water
Pipeline can be poured in mud, is done great damage.Axis bending or deformation that more Jiang Guandao occurs, often caused by building
During pipeline leak, cause pipeline water and soil to pour in.Because around water and soil is poured in inside pipeline, pipeline is caused
Surrounding soil Stratum Loss is serious, thus causes section of tubing structure to be sunk, and due to part tube coupling uneven subsidence, causes pipeline
Axis bending, deformation.
The content of the invention
It is a primary object of the present invention to provide a kind of pipeline Serial regulation system in situ and method of adjustment, the system and side
Method can adapt to pipeline commissioning caused by different factors, and make the Serial regulation effect of pipeline more preferable using multiple means.
To achieve the above objectives, the technical solution adopted by the present invention is：A kind of pipeline Serial regulation system in situ, including set
Put the adjacent tube coupling junction of pipeline antipriming and be arranged in the tube coupling of sinking and for the lower section of downward immersed tube section
Inject the grouting device of slurries, it is characterised in that also including jacking apparatus, the jacking apparatus includes extending along duct orientation
And be supported on the lifting beam on inner-walls of duct and lower end be supported on lifting beam, upper end can be resisted against it is multiple on inner-walls of duct
Hydraulic cylinder a, part for the lifting beam is located at the sinking section of pipeline.
Preferably, the length of the lifting beam is more than the length of sinking pipeline, the two ends of the lifting beam be supported on it is non-under
On the inwall in immersed tube road.
Preferably, the lifting beam is supported on the inwall of pipeline by jacking base, and the upper end of the hydraulic cylinder passes through
Jacking boots plate is resisted against on the inwall of pipeline, and the contact surface of the jacking base and jacking boots plate and pipeline is curved.
Preferably, the antipriming includes internal expension ring antipriming, and the internal expension ring antipriming includes being used for two
Waterstop and the both sides of waterstop are respectively fixed to the pressing plate on the adjacent tube coupling that the junction of adjacent tube coupling is covered.
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 projection 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 steel collar in pipeline and the type inflatable waterstop and sealing packing that are arranged on steel collar periphery are put, it is described inflatable
The external diameter of formula waterstop and sealing packing is more 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 is used
Into 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 also includes the power for being arranged on adjacent tube coupling and apply adjacent tube coupling move toward one another
Drawknot device.
Compared with prior art, the invention has the advantages that：
1) the adjustment system is realized to add in the purpose of jacking in prior art by grouting device is arranged in pipeline
Jacking apparatus, the jacking apparatus realizes jacking by the hydraulic cylinder being arranged on jacking girder steel, and rigidity is good, and then can reach
More preferable jacking effect；And by being used cooperatively with grouting device, slurries are injected to the lower section of pipeline while in jacking
In time to fill the space between pipeline and soil layer, pipeline formation is supported, and then more preferable Serial regulation can be realized
Effect；
2) slurries of grouting device use mixing liquid, while ensureing to pipeline support, will not also 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 more preferable water-stagnating effect.
Brief description of the drawings
Fig. 1 is the stereogram of the internal expension ring antipriming of the present invention
Fig. 2 is the internal expension ring antipriming and the sectional view of tube wall cooperation of the present invention
Fig. 3 is the inflatable antipriming and the sectional view of tube wall cooperation of the present invention
Fig. 4 is the structure chart of the grouting device of the present invention
Fig. 5 be the present invention jacking apparatus from end when view
Fig. 6 is the side view of the jacking apparatus of the present invention
Fig. 7 is mounting structure figure of the drawknot device of the present invention on tube wall
Fig. 8 is the sectional view of the drawknot device of the present invention
Structure chart when Fig. 9 is axial direction observation of the drawknot device of the present invention along pipeline
Figure 10-12 is the course of work of the hydraulic cylinder of the jacking apparatus of the present invention
Embodiment
Describe to be used to disclose the present invention below so that those skilled in the art can realize the present invention.It is excellent in describing below
Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.
Embodiment one
A kind of pipeline Serial regulation system in situ, including multiple antiprimings 1, jacking apparatus 2 and grouting device 4.Institute
State antipriming 1 and be arranged on the junction of adjacent tube coupling in sinking pipeline to fill up the gap for misplacing and producing by tube coupling 600, together
When can also play a part of sealing.The jacking apparatus 2 is arranged in pipeline the tube coupling 600 of sinking is lifted into original
Position, the grouting device 4 is used to the lower section soil layer slip casting after the lifting of 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
Individual rubber blanket waterstop 11 and two arc keeper plate of steels 12, the rubber blanket waterstop 11 have certain width, and it is fitted in
On the inwall of two adjacent and dislocation tube couplings 600, the gap that such rubber blanket waterstop 11 can misplace is filled up, and energy
Enough prevent the water in extraneous soil layer from entering in pipeline.The both sides of rubber blanket waterstop 11 are provided with an arc keeper plate of steel 12
So that rubber blanket waterstop 11 is fixed on the tube coupling 600 of two dislocation.Specifically, the arc keeper plate of steel 12 by it is multiple not
Tempering of becoming rusty screw 13 is fixed on corresponding tube coupling 600.Meanwhile, by the extruding of arc keeper plate of steel 12 can also prevent 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 in order to ensure two it is adjacent and dislocation tube coupling 600 between gap change within the specific limits when
Influence, after the rubber blanket waterstop 11 is on fixed to tube coupling 600, itself and two tube couplings will not be produced on rubber blanket waterstop 11
Between the corresponding position in gap at formed towards pipeline center projection 14, projection 14 be two tube couplings 600 between gap change
Change serves cushioning effect, it is to avoid rubber blanket waterstop 11 stretched during changing in gap and is caused damage.
Two arc keeper plate of steels 12 respectively fix the rubber fastening band 11 positioned at raised 14 both sides.
, can be by rubber blanket waterstop 11 in order to further prevent water from being entered from the gap of two tube couplings 600 in pipeline
It is adhered to by pasting agent on the inwall of tube coupling 600.
Jacking apparatus 2 is installed after the installation of antipriming 1 is completed, jacking is carried out to the tube coupling 600 of sinking.
As seen in figs. 5-6, the jacking apparatus 2 includes jacking hydraulic cylinder 21, jacking girder steel 22, jacking pedestal 23 and top
Rise boots plate 24, axis extension of the jacking girder steel 22 along pipeline.And the length of jacking girder steel 22 is slightly larger than sinking pipeline
Length, the jacking girder steel 22 is supported on the inwall below pipeline by multiple jacking pedestals 23, which part jacking base
Seat 23 is supported on the non-sinker area of pipeline, and jacking pedestal 23, Jin Eryou is arranged in the non-sinker area of pipeline commissioning area both sides
Have all the time from the support in normal position pipeline in jacking girder steel 22, and then ensure that jacking girder steel 22 has all the time
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
Inwall on, and then the jacking to sinking tube coupling 600 is realized by the elongation of hydraulic cylinder 21, makes tube coupling 600 extensive as much as possible
Multiple normal position.The one side that the jacking boots plate 24 is contacted with inner-walls of duct is the arc and pipeline of cambered surface and the cambered surface
Inwall is consistent, and by jacking boots plate 24 top lift of hydraulic cylinder 21 can be enable to be applied to pipeline as homogeneously as possible
On, prevent stress concentration and cause subregion top lift excessive, destroyed more than the ultimate bearing capacity of pipeline.It is described
Jacking pedestal 23 has same effect.
Specifically, the jacking girder steel 22 is spliced using H profile steel, with two rows, in the jacking girder steel 22 of each row
On the hydraulic cylinder 21 that is provided with multiple hydraulic cylinders 21, and two row's jacking girder steels 22 be parallel to each other two-by-two and relative under not
The symmetrical symmetry to ensure support force of the center line in immersed tube road.And the adjacent hydraulic cylinder 21 on same jacking girder steel 22
The distance between the identical uniformity to ensure 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 by high-pressure hose with the arrival end of conduit 41, the port of export of the conduit 41 is stretched through the tube wall below pipeline
Go out the outside to pipeline, the entrance of the high-pressure soil sand pump is connected with storing the device of 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 turn on.
Grouting device 4 first drills in installation process on duct wall, smears anchoring adhesive around drilling afterwards, finally inserts
Enter conduit 41.Because 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, it is possible to effectively fill up the space between drilling and metal tube.If however, anchoring adhesive is once flowed into
Metal tube will be blocked to inside metal tube, after solidification and is difficult to dredge, therefore, in order to prevent such a situation from occurring, is being led
Before the insertion drilling of pipe 41, sealed in insertion one end using flexible tape, prevent anchoring adhesive to be flowed into pipe, and flexible tape
Anti-pressure ability is small, during the high-pressure injection after, and injection material can break through flexible tape under high pressure, smoothly be expelled to
Pipeline external.
The junction of the conduit 41 and high-pressure hose is provided with packing antipriming 43, passes through packing antipriming 43
The bearing capacity of junction can be improved, and then prevents junction from leaking.
The slurries are the bentonite with certain lubrication drag reduction property and mix a certain proportion of polyacrylamide wherein
The mixed serum of amine (PAM), the mixed serum has the characteristics that：1) it is injected into behind stratum, one can be produced to pipeline and oriented
On jacking stress；2) in transport with certain mobility, while again with certain stabilization after the soil body is injected into
Property, and then the mixed serum can squeeze into the soil body by conduit, but enter after stratum, it will not expand on a large scale to surrounding
Dissipate, therefore after injecting the mixed serum, pipeline will not sink again in a short time；3) drag reduction with height lubricates
Performance, pipeline is still able to continue jacking after Serial regulation is carried out, will not to the lubricity between pipeline and stratum and
The formation of mud sleeve produces influence.
Meanwhile, as Figure 7-9, in order to preferably reach the purpose of Serial regulation, the adjustment system also 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 base 31 on section 600 is connected with by two drawknot bases 31, is provided with the drawknot base 31
Mounting hole 34, the drawknot base 31 is bolted on the inwall of tube coupling 600 by being penetrated in mounting hole 34, the drawknot
Base 31 is the arc-shaped base consistent with the inwall arc of tube coupling 600.Connecting plate 33 is additionally provided with the drawknot base 31,
The through hole passed through for drawknot screw 32, when mounted, the drawknot bottom on two adjacent tube couplings 600 are provided with connecting plate 33
Screwed hole on seat 31 is oppositely arranged, and the drawknot screw 32 is placed through on the drawknot base 31 on two adjacent tube couplings 600
Through hole, nut has been screwed at the both ends of drawknot screw 32, and nut is resisted against the outside of drawknot base 31 and then by rotation
Stubborn nut can make the drawknot base 31 being located on two adjacent tube couplings 600 constantly close and then make the gap between two tube couplings 600
Position when constantly reducing, and then making the two-phase union 600 return to non-sinking as much as possible.
Specifically, pipeline drawknot device 3 is provided with 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 with the junction of each adjacent tube coupling 600
Device 3 is uniformly arranged to ensure the uniformity of the stress of tube coupling 600 in circumferencial direction.
Embodiment two
The difference of embodiment two and embodiment one is that antipriming employs inflatable antipriming 5 to replace internal expension ring
Antipriming.
The inflatable antipriming is slightly less than the steel collar 51 of internal diameter of the pipeline including diameter and is arranged on steel collar 51
Inflatable watertight rubber band 52 and compressible sealing packing 53 on side face, and both sides in steel collar 51 vertically are all provided with
Inflatable watertight rubber band 51 and sealing packing 53 is equipped with tube coupling 600 adjacent with two respectively to coordinate 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
Inwall between be extruded to be in close contact with tube wall and then realize the effect of sealing.
When the gap between adjacent dislocation tube coupling 600 exceedes 20cm, it can suitably increase inflatable sealing
The quantity of rubber strip 52 or compressible sealing packing 53, for example, internally adding two on the basis of 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 is fixed, and prevents watertight rubber band 52 and sealing packing 53 from being come off because fixation is not firm.
Larger due to being misplaced between tube coupling 600, the bell and spigot 56 of connection tube coupling is often fallen off, therefore, in steel bushing
The valve 54 with the gap area of the adjacent junction of tube coupling 600 is provided with ring 51, is filled by valve into gap substantial amounts of
Tail seal grease of shield 55, so as to strengthen water-stagnating effect.Wherein, the bell and spigot 56 is to seal the company that two adjacent tubes connect 600
Place is met, when tube coupling 600 misplaces larger, bell and spigot 56 can not play sealed effect, be now accomplished by injecting tail seal grease of shield
55 to play certain water-stagnating effect.
Inflatable antipriming 5 in the embodiment is applied to the larger situation of tube coupling dislocation, and interior in embodiment one
Tensioner ring antipriming is adapted to the less situation of tube coupling dislocation, and in the pipeline of same sinking, some tube coupling misalignments
Seriously, some tube coupling misalignments are slight, therefore, may simultaneously be used in the pipeline of same sinking and arrive internal expension ring sealing
Device and inflatable antipriming.
The method of adjustment of the adjustment system is as follows：
Step one：Antipriming is installed
Misplacing, lighter tube coupling installs internal expension ring antipriming, first lays rubber blanket waterstop 11, arc is utilized afterwards
Keeper plate of steel 12 pushes down waterstop both sides, is finally fixed with bolt.Inflatable sealing dress is installed for the more serious tube coupling that misplaces
Put, first with the gap between the sealed tube wall of inflatable watertight rubber band 52 and steel collar 51, afterwards in inflatable watertight rubber
With 52 inner side increase together compressible sealing packing 53, finally tail seal grease of shield is filled between the gap of adjacent tube coupling
55 are sealed.
, it is necessary to first be cleared up installation site to reach more preferable water-stagnating effect before antipriming is installed.
Step 2：Drawknot device is installed
In the tube coupling of production pipeline, reserve and be provided with the preformed hole for installing drawknot base 31, preformed hole on tube coupling
Internal thread.When installing drawknot device, first the mounting hole on drawknot base 31 is alignd with preformed hole and installs solid by screw
It is fixed, drawknot screw 32 is then each passed through through hole hole on the drawknot base 31 on adjacent tube coupling and by screwing position
Drawknot is realized in the nut on drawknot screw 32.
Step 3：Grouting device is installed
First, outwards drilled from inner-walls of duct, the hole bored is the native hole of note, but should not be drilled through, and reserves 5cm pipe thicknesses
If (drilling through, extraneous water and soil can be poured in pipe)；Then the native hole of cleaning note, prevents the inside to be mixed into impurity effect subsequent operation；Connect
And pour into effective reinforcement glue, and the conduit 41 of grouting device is inserted into the native hole of note, wait effective reinforcement glue intensity to reach design requirement；So
Afterwards, latus rectum ball valve 42 is installed, and native hole drill will be noted thoroughly, is poured in for extraneous water and soil after preventing hole from drilling through, ball valve should be closed in time；
Finally, corresponding packing sealing and high-pressure hose are installed into the top of conduit 41.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 formed using bentonite original soil, water and polyacrylamide (PAM) allotment, slump control
In 100mm between 130mm.Slurries are mixed and stirred using mortar mixer, are fitted into afterwards in reservoir bag, are transported to inside pipeline and are treated
With.
Step 4：The structure for installing foregoing jacking apparatus is attached it in pipeline 600.
When carrying out the in situ LFM signal of pipeline, start drawknot device, grouting device and jacking apparatus successively, and
During adjustment, it is adjusted in the order described above repeatedly and to the last returns to position that is in situ or needing.
The raising order of jacking process can specifically be carried out according to field condition, preferably by behind first centre both sides it is suitable
Sequence carries out jacking, and concrete operations are as follows：
First, as shown in Figure 10, the hydraulic cylinder (3,4,5, No. 6 hydraulic cylinders) for starting jacking apparatus intermediate region is pushed up
Rise, while injecting mixed serum to sinking section tube coupling (18 to No. 22 tube couplings in figure) using high-pressure soil sand pump, observe jacking situation；
Afterwards, as shown in figure 11, hydraulic cylinder in the middle of withdrawing, starts left side hydraulic cylinder (5-8 hydraulic cylinders), while immersed tube section note soil downwards
(19 to No. 23 tube couplings in figure)；Finally, as shown in figure 12, left side hydraulic cylinder is withdrawn, starts right side hydraulic cylinder (1-4 hydraulic pressure
Cylinder), and immersed tube section note is native (17 to No. 21 tube couplings in figure) downwards.To note the change of observation pipe seam during jacking the moment and ooze
Leakage situation.
Whole jacking process is slowly carried 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 data-guiding of continuous renewal beating soil sequentially and beat soil then
Amount, makes this section of sedimentation pipe nodel line close to straight line.
The packing impaction state of observation inflatable antipriming is needed during jacking, in the motion process of pipeline jacking,
Pipeline is linear to change, and packing pine excessively can influence its water-stagnating effect, and tension can limit the motility of tube coupling；
General principle, principal character and the advantages of the present invention of the present invention has 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 that described in above-described embodiment and specification is the present invention
Principle, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these change and
Improvement is both fallen within the range of claimed invention.The protection domain of application claims by appended claims and its
Equivalent is defined.
Claims (10)
1. a kind of pipeline Serial regulation system in situ, including it is arranged on antipriming and the setting of the adjacent tube coupling junction of pipeline
The grouting device of lower section injection slurries in the tube coupling of sinking and for downward immersed tube section, it is characterised in that also including jacking
Device, the jacking apparatus includes extending along duct orientation and is supported on the lifting beam on inner-walls of duct and lower end is supported on top
Rise on beam, upper end can be resisted against the multiple hydraulic cylinders on inner-walls of duct, a part for the lifting beam is located at the sinking of pipeline
Section.
2. a kind of pipeline Serial regulation system in situ according to claim 1, it is characterised in that the length of the lifting beam
More than the length of sinking pipeline, the two ends of the lifting beam are supported on the inwall of non-sinking pipeline.
3. according to a kind of pipeline Serial regulation system in situ described in claim 1, it is characterised in that the lifting beam passes through jacking
Base is supported on the inwall of pipeline, and the upper end of the hydraulic cylinder is resisted against on the inwall of pipeline by jacking boots plate, the top
The contact surface for rising base and jacking boots plate and pipeline is curved.
4. according to a kind of pipeline Serial regulation system in situ described in claim 1, it is characterised in that the antipriming includes interior
Tensioner ring antipriming, the internal expension ring antipriming includes being used for the waterstop of the junction covering of two adjacent tube couplings and stopping
The both sides of water band are respectively fixed to the pressing plate on the adjacent tube coupling.
5. according to a kind of pipeline Serial regulation system in situ described in claim 4, it is characterised in that fix waterstop in pressing plate
After on to two adjacent tube couplings, the waterstop has inside projection in the radial direction along tube coupling.
6. according to a kind of pipeline Serial regulation system in situ described in claim 5, it is characterised in that the waterstop and tube coupling it
Between oiling paste agent.
7. according to a kind of pipeline Serial regulation system in situ described in claim any one of 1-6, it is characterised in that the sealing dress
Put including inflatable antipriming, the inflatable antipriming includes the steel collar being placed coaxially in pipeline and is arranged on
Type inflatable waterstop and sealing packing on steel collar periphery, the external diameter of the type inflatable waterstop and sealing packing are big
In the internal diameter of pipeline.
8. according to a kind of pipeline Serial regulation system in situ described in claim any one of 1-6, it is characterised in that the slip casting dress
Put the slurries that use a certain proportion of polyacrylamide is incorporated into the mixed serum formed in bentonite.
9. according to a kind of pipeline Serial regulation system in situ described in claim 8, it is characterised in that the slurries of the grouting device
It is drawn out to by conduit in the soil layer below pipeline, the serum outlet end of the conduit is sealed using flexible tape.
10. according to a kind of pipeline Serial regulation system in situ described in claim any one of 1-6, it is characterised in that also including setting
Put the drawknot device for the power for applying move toward one another on adjacent tube coupling and by adjacent tube coupling.
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| CN109538824A (en) * | 2018-12-28 | 2019-03-29 | 中国电建集团福建省电力勘测设计院有限公司 | A kind of large-diameter steel reinforced concrete electric power jacking pipe structure of small curvature curved jacking |
| CN109949690A (en) * | 2019-03-28 | 2019-06-28 | 广州市市政工程设计研究总院有限公司 | A kind of shield vertical shaft vertically jacks model test apparatus and method |
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| CN109949690A (en) * | 2019-03-28 | 2019-06-28 | 广州市市政工程设计研究总院有限公司 | A kind of shield vertical shaft vertically jacks model test apparatus and method |
| 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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|---|---|
| CN107288666B (en) | 2019-04-16 |
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