CN107816117A - A kind of large-scale pressure current box culvert is not cut off the water outer restorative procedure - Google Patents
A kind of large-scale pressure current box culvert is not cut off the water outer restorative procedure Download PDFInfo
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- CN107816117A CN107816117A CN201711129570.0A CN201711129570A CN107816117A CN 107816117 A CN107816117 A CN 107816117A CN 201711129570 A CN201711129570 A CN 201711129570A CN 107816117 A CN107816117 A CN 107816117A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
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Abstract
Do not cut off the water outer restorative procedure the invention discloses a kind of large-scale pressure current box culvert, it is comprised the steps of：Step 1：Groundwater Control and foundation pit enclosure are carried out to box culvert restoring area；Step 2：Temporary plugging is carried out to box culvert leakage point；Step 3：Consolidation process is carried out to structure at box culvert leakage point.Large-scale pressure current box culvert provided by the present invention outer restorative procedure construction process of not cutting off the water is simple, is easy to construct, and solves the problem that real box culvert carries out outer reparation in the case where not cutting off the water.Meanwhile the big rubber fastening band of customization stroke is easily installed, and be less likely to be damaged, it is readily replaceable after rubber fastening band damage.
Description
Technical field
The present invention relates to municipal works technical field, and in particular to a kind of large-scale pressure current box culvert is not cut off the water compound of dispatching workers to do on-site repairs
Method.
Background technology
One phase of the combined sewage pipeline for being called Shanghai " Life Engineering " predominantly eliminates Suzhou River, Huangpu River pollutes and built
Into a large size city pumping equipment, in water flowing on December 29 in 1993, the ton day of design dry flow sewage conveying capacity 1,700,000.It is dirty
Water pipeline west from Dan Balu, to the east of bamboo plantation entrance of Changjiang River, 33.39 kilometers of overall length, wherein, Peng Yue Pus pumping plant downstream line is two
4250 × 3500mm, it is diplopore reinforced concrete box culvert.
Run over more than 20 years, Peng Yue Pus pumping plant downstream line was once repeatedly damaged, and caused sewage large area to emit excessive.Due to
Depot siding conveying is pressure stream mode, and box culvert elevation of top is+2 meters (absolute altitudes), and pipeline performance water level is at+6 meters, especially
It is that must assure that daily 1,700,000 tons of sewage normally conveys.Cause maintenance personal cannot be introduced into and Pipeline damage point is carried out in box culvert
Repair, moreover, when repairing outside, it is necessary to carry out repair in the case where being higher by the head condition of 4 meters of box culvert, maintenance difficulty is very big, dimension
Quality is repaiied also to be difficult to control.
Box culvert in large size by running all the year round, and due to structure aging, the factor such as differential settlement, causes case under box culvert heavy load
Contain expansion joint deformation, be broken expansion joint water stop, so as to cause box culvert drainage.Box culvert leakage area is concentrated mainly on case
Contain at expansion joint, and box culvert and pumping station caisson joint.Be generally the top and both sides of box culvert at leak, and box culvert bottom by
General in box culvert settlement extruding is not in drainage.
Long distance delivery box culvert takes merogenesis to pour box culvert, respectively to prevent from expanding with heat and contract with cold and differential settlement phenomenon
Rubber water-proof band connection is taken between level box culvert.During box culvert use, extraneous factor such as heavy duty pressure box culvert, box culvert basis is close
Solidity is uneven, box culvert inside water pressure etc., causes box culvert differential settlement, expansion joint deformation occurs, so as to tear rubber water-proof
Band, ultimately cause box culvert drainage.Has there are many places in one phase box culvert of interflow in this box culvert drainage, as Zha Yin roads Yin is high
Box culvert, house steward's Hai Xu box culvert etc. at road.
In addition, disengaging box culvert, with being also the easy position that drainage occurs at pumping station caisson structure, box culvert is designing herein
In work progress, to prevent box culvert and pumping station caisson from settling and differing, set box culvert to rest the head on pumping station caisson wall, hold box culvert, protect
It is consistent with pumping station caisson sedimentation to hold box culvert.This design method, it have ignored this two sections of section box culvert and settle the problem that differs, this inequality
Even sedimentation is existing, is so easy to occur junction expansion joint between box culvert and pumping station caisson and deforms, causes rubber fastening band
Fracture, so as to which box culvert drainage occur.This box culvert drainage is total in one phase box culvert Peng Yue Pu pumping plant water outlet box culvert of interflow
Pipe, Waigaoqiao Bonded Zone box culvert high position well water outlet box culvert house steward, the SB pumping plant water outlet box culvert house stewards of sewage second phase occurred.
The content of the invention
Do not cut off the water outer restorative procedure it is an object of the invention to provide a kind of large-scale pressure current box culvert, to realize that box culvert is not stopping
Outer repair is carried out in the case of water.
To reach above-mentioned purpose, do not cut off the water outer restorative procedure the invention provides a kind of large-scale pressure current box culvert, it is included
Following steps：
Step 1：Groundwater Control and foundation pit enclosure are carried out to box culvert restoring area；
Step 2：Temporary plugging is carried out to box culvert leakage point；
Step 3：Consolidation process is carried out to structure at box culvert leakage point.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 1 comprises the steps of：
Step 1.1：The hole bottom of restoring area and the periphery soil body are reinforced using high-pressure rotary jet grouting pile, to prevent underground water
Into in the foundation ditch of restoring area；
Step 1.2：Foundation pit enclosure is carried out to the periphery soil body of restoring area using mixing pile or root pile.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 2 comprises the steps of：
Step 2.1：Drainage tube is installed along box culvert expansion joint；
Step 2.2：Scotch closure box culvert expansion joint is used in the top of drainage tube；
Step 2.3：In the top of scotch using sprue to being closed up at the temporary plugging of box culvert expansion joint；
Step 2.4：Drainage tube is closed, temporary plugging is completed.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 2.2 also comprises the steps of：
After scotch closure, Small leak point is blocked using immersion oil flax silk.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 2.3 also comprises the steps of：
After sprue closes up, using polyurethane to local rises slip casing by pressure, reinforced with closure at temporary plugging.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 3 comprises the steps of：
Step 3.1：Bar planting is connected on the original structure of box culvert expansion joint both sides, for connecting new ruggedized construction, and uses steel
Muscle colligation；
Step 3.2：In new ruggedized construction new expansion joint is reserved using cystosepiment；
Step 3.3：Mounting surface is provided for rubber fastening band installation in new expansion joint both sides, and pre-buried installation waterstop is pre-
Embedded part；
Step 3.4：New ruggedized construction is formed using template formwork, and with concreting；
Step 3.5：Rubber fastening band is arranged on the built-in fitting in new ruggedized construction using pressing plate, with to new expansion joint
Carry out encapsulation process.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 3.4 comprises the steps of：It is mixed
Solidifying soil installs water-swellable rubber bar before pouring between original structure and new ruggedized construction, for obstructing sewage along emerging seam
Gap seepage.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 3.5 comprises the steps of：
When rubber fastening band is installed, a block protection baffle plate is pressed simultaneously above rubber fastening band, it is sharp in soil when being filled out to prevent non-return
Hard thing damages to rubber fastening band.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 3 also comprises the steps of：
Step 3.6：The new expansion joint bottom of box culvert both sides is blocked using flax silk and micro-expansion cement, by sewage
It is sealed in closed new expansion joint.
Above-mentioned large-scale pressure current box culvert is not cut off the water outer restorative procedure, wherein, the step 3 also comprises the steps of：
Step 3.7：Ballast is carried out to box culvert both sides hole bottom to pour, to reinforce the closure of new expansion joint bottom.
Relative to prior art, the invention has the advantages that：Large-scale pressure current box culvert provided by the present invention is not
Outer restorative procedure construction process of cutting off the water is simple, is easy to construct, and solves real box culvert and outer reparation is carried out in the case where not cutting off the water
Problem.Meanwhile the big rubber fastening band of customization stroke is easily installed, and be less likely to be damaged, after rubber fastening band damage easily
Change.
Brief description of the drawings
Fig. 1 is the structural representation that box culvert restoring area carries out Groundwater Control and foundation pit enclosure；
Fig. 2 is the structural representation of drainage tube；
Fig. 3 is the structural representation of scotch；
Fig. 4 is the structural representation that box culvert leakage point carries out temporary plugging；
Fig. 5 is that structure carries out the structural representation of consolidation process at box culvert leakage point in the embodiment of the present invention 1；
Fig. 6 is that structure carries out the structural representation of consolidation process at box culvert leakage point in the embodiment of the present invention 2；
Fig. 7 is the enlarged diagram of part A in Fig. 5 and Fig. 6；
Fig. 8 is that the large-scale pressure current box culvert of the present invention is not cut off the water the overall structure diagram after outer reparation；
Fig. 9 is the mounting structure schematic diagram of rubber fastening band.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, the invention will be further described, and these embodiments are merely to illustrate
The present invention, it is not limiting the scope of the invention.
Do not cut off the water outer restorative procedure the invention provides a kind of large-scale pressure current box culvert, it is comprised the steps of：
Step 1：As shown in figure 1, carrying out Groundwater Control and foundation pit enclosure to the restoring area of box culvert 1, it includes following step
Suddenly：
Step 1.1：The hole bottom of restoring area and the periphery soil body are reinforced using high-pressure rotary jet grouting pile 2, to prevent underground
Water enters in the foundation ditch of restoring area；
Step 1.2：Foundation pit enclosure is carried out to the periphery soil body of restoring area using mixing pile 3 or root pile.
The buried depth of box culvert in large size 1 is typically deep, and the bottom underground water of box culvert 1 is relatively abundanter, and this brings larger to the reparation of box culvert 1
Trouble, maintenance box culvert 1 must first solve the restoring area Groundwater Control of box culvert 1 and foundation pit enclosure.
Groundwater Control should not use well-points dewatering method, and this method easily causes box culvert 1 or periphery structures are secondary
Sedimentation, bigger damage is caused to box culvert 1.High-pressure rotary jet grouting pile 2 should be used to carry out the hole bottom of restoring area and the periphery soil body
Reinforce, make water seal curtain, prevent underground water from entering in the foundation ditch of restoring area.
Reparation foundation ditch is deep, and the especially both sides foundation ditch of box culvert in large size 1 reaches more than 7m, it is necessary to carries out foundation ditch to repairing foundation ditch
Go along with sb. to guard him, foundation pit enclosure is preferably made permanent building enclosure, so can to box culvert 1 repair section do permanent protection, prevent it is outside because
Element damages to box culvert 1.Using mixing pile 3, shallower foundation ditch carries out foundation pit enclosure, the mixing pile 3 or tree root using root pile
Stake is bonded between the side wall of box culvert 1 and the high-pressure rotary jet grouting pile 2 of the both sides of box culvert 1, and with the high-pressure rotary jet grouting pile 2 of the both sides of box culvert 1.So
Afterwards, mixing pile 3 is gone along with sb. to guard him by steel purlin 4 and bracing members 5 to the both sides of box culvert 1.Preferably foundation ditch is done without using steel sheet pile to enclose
Shield, because steel plate, when pulling out, vibration is larger, and secondary injury is caused to the box culvert 1 repaired.
Another effect of the maintenance of box culvert in large size 1 foundation pit enclosure is Conservative restoration, and good box culvert 1 acts on, and plays reinforcement and repair
The effect of section box culvert 1 bottom, prevents impact of the external force to box culvert 1.
Step 2：As shown in Figure 2, Figure 3 and Figure 4, temporary plugging is carried out to the leakage point of box culvert 1, it comprises the following steps：
Step 2.1：Clear up in expansion joint 10 and drainage tube 6 is installed (according to gap overhaul choosing along the expansion joint 10 of box culvert 1 after debris
With drainage diameter)；
Step 2.2：The expansion joint 10 of box culvert 1 is blocked (according to the size system of expansion joint 10 using scotch 8 in the top of drainage tube 6
Make wedge China fir bar, every section of China fir bar suitable length 50cm)；
Preferably, the step 2.2 also comprises the steps of：After scotch 8 blocks, Small leak point is sealed using immersion oil flax silk
It is stifled；
Step 2.3：In the top of scotch 8 using sprue 9 (blocks of solid formed after being closed up using leak stopping king) to box culvert 1
Closed up at the temporary plugging of expansion joint 10；
Preferably, the step 2.3 also comprises the steps of：After sprue 9 closes up, local rises is pressed using polyurethane
Power slip casting, reinforced with closure at temporary plugging；
Step 2.4：After plugging structure maintenance, drainage tube 6 is closed, temporary plugging is completed.
Box culvert in large size 1 repair maximum difficult point be how the good leakage point of box culvert 1 of temporary plugging, this be box culvert 1 repair success or failure
Crux process.Leak source closure is to repair necessary condition the structure later stage of box culvert 1, and otherwise follow-up repair can not be carried out.
Pressure stream mode conveying box contains 1 conveying task weight, and can not thoroughly cut off the water reparations at all, it is necessary to be sealed with water is with pressure
Stifled, general plugging material is blocked under the conditions of no pressure, and plugging material can be washed away during current by having.The present invention according to leakage point by
Small closure principle is arrived greatly, and the leak source of box culvert 1 is blocked using above-mentioned steps.
Box culvert 1 is damaged after excavation big flow leakage point occurs, be case of dispatching workers to do on-site repairs to this big flow leakage point temporary plugging
Contain a 1 vital ring, it is main using " installation drainage tube 6 " and " closure two, the expansion joint 10 " step of scotch 8.
" drainage tube 6 " is arranged in the expansion joint 10 of damaged box culvert 1, plays a part of drainage, decompression." drainage tube 6 "
Diameter is mainly selected according to the size of expansion joint 10, and drainage tube 6 is made using welded still pipe, " drawing in installation box culvert 1 expansion joint 10
Flow tube 6 " need to cut away section lower tube wall, so that sewage enters " drainage tube 6 ", the reservation " upper tube of drainage tube 6 " in box culvert 1
Wall, the sewage that can so will leak out by " drainage tube 6 " draws box culvert 1 expansion joint 10, reduces the leak pressure of lower step closure,
And one valve 7 is installed in the one end of drainage tube 6, after ensureing the closure completely of box culvert 1, valve 7 is closed, so as to accomplish finally to block case
Contain 1 purpose.
After the installation of drainage tube 6, then using " scotch 8 blocks the method for expansion joint 10 " and the expansion joint 10 of box culvert 1 is sealed
Stifled, " scotch 8 blocks expansion joint 10 " and processes China fir bar according to the big little makings in the gap of box culvert 1, is sized generally to " V " shape, length
30~50cm is advisable, and this shape is easy to be mounted in expansion joint 10, and China fir material is softer, is hit down with iron hammer, fills in box culvert 1
In expansion joint 10, this method can keep out certain pressure, can block big flow leakage point.If gap is irregular,
Some immersion oil flax silks can be wound on " V " shape China fir bar, having between batten and expansion joint 10 is so blocked and preferably contacts, seal
Stifled effect can be more preferable.Immersion oil flax silk is used between batten and batten, immersion oil flax silk is inserted into batten gap at joint using flat mouth chisel,
So basic can falls the big leakage point closure of box culvert 1.
Gross leak point can be blocked substantially by two above step, some other Small leak point can use flat mouth chisel will
Immersion oil flax silk is inserted in trickle gap, is blocked.Again closure gap close up being formed with leak stopping king after the completion of closure and blocked up
Block 9, leak stopping king's closing in thickness is not less than 2cm, after reaching normal intensity when leak stopping king closing in face, can use water-soluble poly ammonia
Ester carries out grouting and reinforcing to closure face, can play closure reinforcement effect to blocking trickle gap.
Step 3：As shown in Figure 5 and Figure 6, respectively between pumping station caisson 11 and box culvert 1 (embodiment 1) and box culvert 1 with
Structure carries out the structural representation of consolidation process at the leakage point of box culvert 1 of (embodiment 2) between box culvert 1.At the leakage point of box culvert 1
Structure carries out consolidation process, and it comprises the following steps：
Step 3.1：As shown in Figure 7 and Figure 8, bar planting 17 is connected on the original structure of the both sides of 1 expansion joint of box culvert 10, and uses steel
Muscle colligation, for connecting new ruggedized construction 19；
Step 3.2：In new ruggedized construction 19 new expansion joint is reserved using cystosepiment 20；
Step 3.3：As shown in figure 9, provide installation in new expansion joint (cystosepiment 20) both sides for the installation of rubber fastening band 14
Face, and the built-in fitting 12 of pre-buried installation waterstop 14；
Step 3.4：New ruggedized construction 19 is formed using template formwork, and with concreting；
Preferably, the step 3.4 comprises the steps of：Before concreting between original structure and new ruggedized construction 19
Water-swellable rubber bar 18 is installed, for obstructing sewage along emerging gap leakage；
Step 3.5：Rubber fastening band 14 is arranged on the built-in fitting 12 in new ruggedized construction 19 using pressing plate 15, with right
New expansion joint (cystosepiment 20) carries out encapsulation process；
Preferably, the step 3.5 comprises the steps of：When installing rubber fastening band 14, on rubber fastening band 14
Side presses a block protection baffle plate 16 simultaneously, and hard thing sharp in soil damages to rubber fastening band 14 when being filled out to prevent non-return；
Step 3.6：New expansion joint (cystosepiment 20) bottom of the both sides of box culvert 1 is sealed using flax silk and micro-expansion cement
It is stifled, sewage is sealed in closed new expansion joint (cystosepiment 20)；
Step 3.7：To the both sides of box culvert 1 hole bottom carry out ballast pour, with new expansion joint (cystosepiment 20) bottom is blocked into
Row is reinforced.
After the leakage point temporary plugging of box culvert 1, consolidation process, the leak source temporary plugging of box culvert 1 need to be carried out to leak source structure
Structure is not firm enough, if without structural strengthening, secondary leakage easily occurs, it is therefore necessary to contains leak source structure progress structure and adds
Gu.Reinforce principle：Original structure is rigid structure, and new ruggedized construction 19 must be rigid, and original structure is flexible structure, new to reinforce
Structure 19 is also flexible.1 common leakage point of box culvert largely leaks for the expansion joint 10 of box culvert 1, the structure expansion joint of box culvert 1
10 joints are connected using rubber fastening band 14, are flexible joint, therefore 1 common leakage point of box culvert is flexible joint, new to reinforce
Structure 19 is also necessary for flexible structure.
The present invention carries out structural strengthening on the original structure of the both sides of 1 expansion joint of box culvert 10 using steel concrete, in new ruggedized construction
The 19 top installation steel plates of built-in fitting 12, rubber fastening band 14 is pressed on built-in fitting 12 using stainless steel platen 15, plays sealing
Effect, while also there is telescopic resilience.Implement according to following steps：
Contain damaged location detection：It is main to check leak source periphery Reinforced Concrete Structure intensity (reisilometer), surface breakdown degree (mesh
Survey), reinforced for the former leak source peripheral structure of box culvert 1 and relevant parameter foundation is provided.
Position the old and new processing is reinforced with being connected：In order to new ruggedized construction 19 be connected with the former structure of box culvert 1 it is firm, need to be to both
The body structure surface of old box culvert 1 of contact position carries out intensive dabbing, while edge leaks expansion joint 10 in box culvert 1 in the old structure of box culvert 1
Top and both sides carry out chemically-planted steel bar 17, for connecting new ruggedized construction 19, make structures connection into an entirety.
New ruggedized construction 19 is constructed：Structural strengthening does not change original structure form, keeps the new expansion joint (cystosepiment 20) of box culvert 1
For flexible joint, new ruggedized construction 19 is located at new expansion joint (cystosepiment 20) both sides, is reinforced that (box culvert 1 pushes up to the face of box culvert 1 three
Portion, the both sides of box culvert 1), new expansion joint (cystosepiment 20) is reserved in new ruggedized construction 19, while carry for the installation of rubber fastening band 14
For mounting surface, and the built-in fitting 12 of pre-buried installation waterstop 14, built-in fitting 12 typically use stainless-steel sheet or carbon steel steel plate, steel
The not low 16mm of plate thickness, the fixing bolt 13 of pressing plate 15 must be welded on built-in fitting 12 in a pre-installation, newly do box culvert 1 reserved 3
Cystosepiment 20 (is filled in new ruggedized construction 19 and forms new expansion joint, cystosepiment 20 has stronger bullet by the new expansion joints of~5cm
Property, favourable rigid structure expands with heat and contract with cold), reinforcing bar colligation using arrangement of reinforcement identical with the former structure of box culvert 1 (or ask designing unit's root
Arrangement of reinforcement is designed according to actual conditions), the new concrete of ruggedized construction 19 uses impervious C30~C35 concretes, the new thickness of ruggedized construction 19
Typically it is not less than the former wall thickness of box culvert 1.Template is installed according to the profile of new ruggedized construction 19 using plank sheathing.In order to prevent the old and new
Structure both shrinks are uneven, gap occur between the old and new's structure, cause secondary drainage, before casting concrete, in the old and new's structure
Between twice water-swellable rubber bar 18 is installed, for obstructing sewage along emerging gap leakage.
The waterstop 14 at new expansion joint (cystosepiment 20) is constructed：On the new expansion joint (cystosepiment 20) of new ruggedized construction 19
" V-type " or " half-wave type " rubber fastening band 14 is installed, encapsulation process (top of box culvert 1, case are carried out to new expansion joint (cystosepiment 20)
Contain 1 both sides), the sealing that sewage is leaked out to the new expansion joint of the interior edge of box culvert 1 (cystosepiment 20) had so both been can guarantee that, can also have been kept
Original flexible structure.Rubber fastening band 14 is installed on the new pre-embedded steel slab of ruggedized construction 19, using steel pressing plate 15 by rubber water-proof
Band 14 is pressed on built-in fitting 12, plays sealing effectiveness." V-type " or " half-wave type " rubber fastening band 14 is flexible and flexion performance is strong,
Using neoprene material, there is corrosion-resistant, oil resistant and the strong feature of ductility.Hard thing sharp in soil during in order to prevent backfill
Rubber fastening band 14 is injured, presses one piece of stainless steel protection baffle plate 16 to be protected above rubber fastening band 14.
New expansion joint (cystosepiment 20) bottom seam and hole bottom encapsulation process：When the both sides of expansion joint 10 of original structure newly reinforce knot
After the completion of structure 19 and the waterstop 14 at new expansion joint (cystosepiment 20) are constructed, by new ruggedized construction 19, rubber fastening band 14 with
New expansion joint (cystosepiment 20) is formed newly stretches together, in order to which sewage is sealed in new expansion joint (cystosepiment 20), reaches case
Contain 1 purpose repaired, it is necessary to the both sides of box culvert 1 new expansion joint (cystosepiment 20) bottom (Fig. 8 B location) is blocked, so
Sewage is sealed in closed new expansion joint (cystosepiment 20) by can.Used during new expansion joint (cystosepiment 20) bottom closure
Flax silk and micro-expansion cement are blocked.
Bottom hole pressure blocks again carries out consolidation process to hole bottom using underwater concrete, and main function prevents underground water enters from adding
Gu the consolidation process of foundation ditch and flexible closure tail end plugs.Bottom hole pressure blocks using C40 underwater concretes, general thickness 60 again
~80cm.
Bottom hole pressure double teeming, which is built, to be carried out in two steps, and first is carried out after excavation of foundation pit to the bottom of box culvert 1 and pours (the churning at hole bottom
2) stake, pours thickness 40cm or so, mainly prevent underground water from entering in construction foundation pit, influences structural strengthening construction；In the knot of box culvert 1
After the completion of structure is repaired, after the installation of rubber fastening band 14 terminates, the second ballast is carried out to hole bottom and poured, main function is to new expansion joint
(cystosepiment 20) tail end plugs are reinforced, and prevent the end plug of expansion joint 10 from, compared with high water head, leakage phenomenon again occur for a long time.
In summary, large-scale pressure current box culvert provided by the present invention outer restorative procedure construction process of not cutting off the water is simple, just
In construction, solves the problem that real box culvert carries out outer reparation in the case where not cutting off the water.Meanwhile it is big to be easily installed customization stroke
Rubber fastening band, and be less likely to be damaged, it is readily replaceable after rubber fastening band damage.
Although present disclosure is discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
- The outer restorative procedure 1. a kind of large-scale pressure current box culvert is not cut off the water, it is characterised in that comprise the steps of：Step 1：Groundwater Control and foundation pit enclosure are carried out to box culvert restoring area；Step 2：Temporary plugging is carried out to box culvert leakage point；Step 3：Consolidation process is carried out to structure at box culvert leakage point.
- The outer restorative procedure 2. large-scale pressure current box culvert as claimed in claim 1 is not cut off the water, it is characterised in that the step 1 is wrapped Containing following steps：Step 1.1：The hole bottom of restoring area and the periphery soil body are reinforced using high-pressure rotary jet grouting pile, to prevent underground water from entering In the foundation ditch of restoring area；Step 1.2：Foundation pit enclosure is carried out to the periphery soil body of restoring area using mixing pile or root pile.
- The outer restorative procedure 3. large-scale pressure current box culvert as claimed in claim 1 is not cut off the water, it is characterised in that the step 2 is wrapped Containing following steps：Step 2.1：Drainage tube is installed along box culvert expansion joint；Step 2.2：Scotch closure box culvert expansion joint is used in the top of drainage tube；Step 2.3：In the top of scotch using sprue to being closed up at the temporary plugging of box culvert expansion joint,；Step 2.4：Drainage tube is closed, temporary plugging is completed.
- The outer restorative procedure 4. large-scale pressure current box culvert as claimed in claim 3 is not cut off the water, it is characterised in that the step 2.2 Also comprise the steps of：After scotch closure, Small leak point is blocked using immersion oil flax silk.
- The outer restorative procedure 5. large-scale pressure current box culvert as claimed in claim 3 is not cut off the water, it is characterised in that the step 2.3 Also comprise the steps of：After sprue closes up, using polyurethane to local rises slip casing by pressure, to block reinforcing temporary plugging Place.
- The outer restorative procedure 6. large-scale pressure current box culvert as claimed in claim 1 is not cut off the water, it is characterised in that the step 3 is wrapped Containing following steps：Step 3.1：Bar planting is connected on the original structure of box culvert expansion joint both sides, is tied up for connecting new ruggedized construction, and with reinforcing bar Prick；Step 3.2：In new ruggedized construction new expansion joint is reserved using cystosepiment；Step 3.3：Mounting surface is provided for rubber fastening band installation in new expansion joint both sides, and pre-buried installation waterstop is pre-buried Part；Step 3.4：New ruggedized construction is formed using template formwork, and with concreting；Step 3.5：Rubber fastening band is arranged on the built-in fitting in new ruggedized construction using pressing plate, to be carried out to new expansion joint Encapsulation process.
- The outer restorative procedure 7. large-scale pressure current box culvert as claimed in claim 6 is not cut off the water, it is characterised in that the step 3.4 Comprise the steps of：Water-swellable rubber bar is installed between original structure and new ruggedized construction, for obstructing before concreting Sewage is along emerging gap leakage.
- The outer restorative procedure 8. large-scale pressure current box culvert as claimed in claim 6 is not cut off the water, it is characterised in that the step 3.5 Comprise the steps of：When installing rubber fastening band, press a block protection baffle plate simultaneously above rubber fastening band, filled out to prevent non-return When soil in sharp hard thing rubber fastening band is damaged.
- The outer restorative procedure 9. large-scale pressure current box culvert as claimed in claim 6 is not cut off the water, it is characterised in that the step 3 is also Comprise the steps of：Step 3.6：The new expansion joint bottom of box culvert both sides is blocked using flax silk and micro-expansion cement, sewage is sealed In closed new expansion joint.
- The outer restorative procedure 10. large-scale pressure current box culvert as claimed in claim 9 is not cut off the water, it is characterised in that the step 3 is also Comprise the steps of：Step 3.7：Ballast is carried out to box culvert both sides hole bottom to pour, to reinforce the closure of new expansion joint bottom.
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| CN201711129570.0A CN107816117A (en) | 2017-11-15 | 2017-11-15 | A kind of large-scale pressure current box culvert is not cut off the water outer restorative procedure |
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| CN109252458A (en) * | 2018-10-31 | 2019-01-22 | 重庆市排水有限公司 | Box culvert emergency drainage construction method |
| CN109667288A (en) * | 2019-02-14 | 2019-04-23 | 国电蓬莱发电有限公司 | To the restorative procedure and structure of the water intaking box culvert seam in deep water under river channels |
| CN110409476A (en) * | 2019-07-05 | 2019-11-05 | 中国建筑第八工程局有限公司 | Retaining Structure of Extra-deep Excavation side wall water leakage treatment method |
| CN111733717A (en) * | 2020-05-21 | 2020-10-02 | 中国市政工程中南设计研究总院有限公司 | Method for perforating concrete box culvert and inspection well on wall plate without stopping production and steel formwork |
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109252458A (en) * | 2018-10-31 | 2019-01-22 | 重庆市排水有限公司 | Box culvert emergency drainage construction method |
| CN109252458B (en) * | 2018-10-31 | 2020-09-29 | 重庆市排水有限公司 | Box culvert emergency drainage construction method |
| CN109667288A (en) * | 2019-02-14 | 2019-04-23 | 国电蓬莱发电有限公司 | To the restorative procedure and structure of the water intaking box culvert seam in deep water under river channels |
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| CN111733717A (en) * | 2020-05-21 | 2020-10-02 | 中国市政工程中南设计研究总院有限公司 | Method for perforating concrete box culvert and inspection well on wall plate without stopping production and steel formwork |
| CN111733717B (en) * | 2020-05-21 | 2021-09-10 | 中国市政工程中南设计研究总院有限公司 | Method for perforating concrete box culvert and inspection well on wall plate without stopping production and steel formwork |
| CN112458932A (en) * | 2020-10-29 | 2021-03-09 | 上海市政工程设计研究总院（集团）有限公司 | Non-cutoff connection method for single-hole water diversion box culvert |
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