CN107416685B - Installation of gas pipeline construction method and its supporting structure on the downside of a kind of bridge - Google Patents
Installation of gas pipeline construction method and its supporting structure on the downside of a kind of bridge Download PDFInfo
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- CN107416685B CN107416685B CN201710758401.7A CN201710758401A CN107416685B CN 107416685 B CN107416685 B CN 107416685B CN 201710758401 A CN201710758401 A CN 201710758401A CN 107416685 B CN107416685 B CN 107416685B
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- bridge
- bracket
- auxiliary fixing
- duct section
- hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses installation of gas pipeline construction method and supporting structures on the downside of a kind of bridge, and multiple grooves are opened up on bridge, a hanger hole and two bearing holes are made a call in groove, will be cut into multistage to roughing-in；Duct section is sling to outside bridge and being down under the edge of a wing；Cucurbit door frame is installed, guide chain and suspension hook pass through hanger hole and stretch under the edge of a wing；Suspension hook is hooked drag-line by staff；Duct section decline, crane hook are detached from drag-line；Operation bottle gouard moved by hands slings duct section, send to the edge of a wing staff by hanging operating platform under movable type, is connect duct section with bracket by latch closure, and the upper end of sunpender passes through bearing hole and extends on bridge floor, is connect sunpender upper end with bridge floor by nut；Auxiliary fixing plate is set under the edge of a wing, oblique connecting plate is welded between auxiliary fixing plate and bracket, other duct sections are as above constructed, installation of gas pipeline construction is completed in the welding of adjacent channel section.This method difficulty of construction is small, engineering construction is at low cost, stabilized structure.
Description
Technical field
The present invention relates to gas pipeline laying technology fields, and in particular to a kind of bridge downside installation of gas pipeline construction party
Method and its supporting structure.
Background technique
Many bridges for being completed and coming into operation not pre-buried gas pipeline bracket in construction, fires to lay with bridge
Gas pipeline need to be fixed on the lower section of bridge by feed channel, usually be fixed in the downside of bridge wing plate.In view of fuel gas conduit
Situations such as road stretches caused by by such environmental effects, slides, the stability of pipeline laying is most important.
For built bridge, currently used cable laying operation scheme is that support of pipelines is fixed on bridge by planting bolt
On wing plate.But in addition to this every side need to be implanted into two rows, four chemical bolts of every row, and avoid existing thickly dotted steel
Muscle, difficulty of construction is quite big, and expense investment is expensive, and engineering construction is at high cost.
The technique of chemical bolt construction requires structure situation that is complicated, while being also contemplated that existing highway bridge, avoids because of chemistry
To bridge force-bearing structural damage during bolt construction.Chemical bolt is also quite stringent to quality requirement and control requirement, than
Cleaning, drying and size after such as drilling directly affect the anchoring stress of chemical bolt.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of to mention in background above technology and defect, a kind of difficulty of construction is provided
It is small, engineering construction is at low cost, installation of gas pipeline construction method and its supporting structure on the downside of structurally stable bridge.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of bridge downside installation of gas pipeline construction method, comprising the following steps:
S1, on the pavement of bridge along bridge to multiple grooves are opened up, beaten from top to bottom in each groove along bridge
Three through-holes, three through-holes are along bridge, to arrangement in the shape of " pin ", one of them is hanger hole, other two is load-bearing
Hole, two bearing holes are arranged along direction across bridge, and gas pipeline to be laid is cut into multiple duct sections；
S2, drag-line is bundled at the middle part of duct section, hooks drag-line with crane and sling duct section, duct section is extend out to
The outside of bridge, then the duct section is down to the lower section on the edge of a wing of bridge；
S3, in groove cucurbit door frame is installed on pavement, bottle gouard moved by hands is installed on the crossbeam of the cucurbit door frame,
The bottle gouard moved by hands is installed on the surface of the hanger hole, and the guide chain and suspension hook of bottle gouard moved by hands pass through hanger hole and stretch to the edge of a wing
Lower section；
S4, hanging basket is hung on the hook of another crane, staff enters in the hanging basket, passes through the crane
Hanging basket is sling, and hanging basket is extend out to the outside of bridge, then hanging basket is down to the lower section on the edge of a wing, makes hanging basket close in step S2
The duct section sling；
Staff in S5, hanging basket holds drag hook and guide chain and suspension hook furthers, and suspension hook is hooked drag-line；
S6, operation sling the crane of duct section and decline duct section, at the same operate bottle gouard moved by hands by guide chain and suspension hook with
Duct section decline, guide chain be in tensioned state during decline, and duct section is while declining to hanging under the pulling force of guide chain
The underface of frame aperture is mobile, and the hook of crane and drag-line are detached from moving process；
S7, operation bottle gouard moved by hands sling duct section to the position on the downside of the edge of a wing, flat by hanging operation under movable type
Staff is transported to the lower section on the edge of a wing by platform, and bracket is placed in the lower section of duct section by the staff below the edge of a wing, and
Duct section and bracket are fastenedly connected by latch closure, the both ends of the bracket are provided with a lifting through-hole, each described to hang
A sunpender is worn in dress through-hole, the lower end of sunpender is fastenedly connected by nut and bracket, and the upper end of two sunpenders is each passed through
Two bearing holes extend out to bridge floor or more, and are fastenedly connected the upper end of sunpender with bridge floor by nut；
S8, suspension hook and drag-line are unclamped, operation bottle gouard moved by hands pulls out guide chain and suspension hook from hanger hole, in the downside on the edge of a wing
Auxiliary fixing plate is set, is provided with positioning through hole in the middle part of the auxiliary fixing plate, the positioning through hole is being placed in hanger hole just
Lower section, auxiliary fixing plate are arranged along direction across bridge, an auxiliary fixing bolt are worn in hanger hole and positioning through hole, will be auxiliarily fixed
The upper end of bolt is fastenedly connected by nut and bridge floor, and the lower end of auxiliary fixing bolt is connected by nut and auxiliary fixing plate fastening
It connects, and the downside on auxiliary fixing plate and the edge of a wing is affixed；
S9, two oblique connecting plates are welded between auxiliary fixing plate and bracket, and make two oblique connecting plate difference positions
In the two sides of duct section；
S10, remaining duct section is constructed using the method for step S2 to step S9, then by adjacent duct section
It is welded, that is, completes the cable laying operation of entire gas pipeline.
Gas pipeline is laid on the downside of bridge using construction method of the invention, does not need to be implanted into numerous chemistry on bridge
Bolt, and only need to open up three through-holes on the pavement of bridge, in through hole mounting support structure, substantially reduce
Difficulty of construction reduces engineering construction cost.
Above-mentioned laying and construction method, it is preferred that the distance between the line of two bearing holes and the hanger hole
For 500mm~800mm.Setting herein apart from when oblique connecting plate can play the role of enough Auxiliary supports to bracket, avoid
High wind acts on lower gas pipeline and transverse shakiness occurs, and improves the stability of Pipe installing.
Above-mentioned laying and construction method, it is preferred that in step S7, the bracket is tight by two latch closures and the duct section
It is solidly connected, two latch closures arrange that there are gaps between two latch closures along the axial direction of duct section.It is fixed using two latch closures
Duct section, and certain interval is reserved between two latch closures, effectively increase the stability connected between duct section and bracket.
As a general technical idea, another aspect of the present invention additionally provides used in a kind of above-mentioned laying and construction method
Supporting structure, including bracket, latch closure, sunpender, auxiliary fixing plate, auxiliary fixing bolt and oblique connecting plate, the latch closure are set to
On the bracket, the both ends of bracket open up a lifting through-hole in the two sides of latch closure respectively, and the sunpender is two, two sunpenders point
It is not arranged in two lifting through-holes, the upper and lower ends of sunpender are equipped with nut, and the lower end of sunpender passes through nut and bracket
It is fastenedly connected, positioning through hole is provided in the middle part of the auxiliary fixing plate, the auxiliary fixing bolt is arranged in the positioning through hole
Interior, the upper and lower ends of auxiliary fixing bolt are equipped with nut, and the lower end of auxiliary fixing bolt is tight by nut and auxiliary fixing plate
It is solidly connected, the both ends of the oblique connecting plate are welded with bracket and auxiliary fixing plate respectively.It is applied using this supporting structure
Work without being implanted into numerous chemical bolts on bridge, and need to only make a call to three holes, wear two sunpenders and one is auxiliarily fixed spiral shell
Bolt, difficulty of construction is small, and project cost is low；In addition, gas pipeline is mounted on bracket using latch closure, pass through two sunpenders
Bracket is fixed on the downside of bridge, forms the fixed form of triangle by auxiliary fixing plate and oblique connecting plate, stable connection,
Reliably, structure is simple.
As further improvement to above-mentioned technical proposal:
Preferably, the latch closure is two, and two latch closures are arranged along the line direction for lifting through-hole perpendicular to two, two
There are gaps between latch closure.In this way, can make to connect between gas pipeline and bracket stronger.
Preferably, the latch closure includes stationary half and movable semi-ring, and the stationary half is installed on bracket, the work
Dynamic semi-ring is removably connect by bolt with stationary half.When installation, duct section need to be only placed in stationary half, then
Movable semi-ring is connected and fixed by bolt and stationary half, easy to operate, connection is reliably.
Preferably, the oblique connecting plate is two pieces, and two pieces of oblique connecting plates are respectively welded in bracket and auxiliary fixing plate
Both ends.In this way, the two sides stress equalization of gas pipeline can be made, the stability of pipeline is further improved.
Preferably, the bracket and auxiliary fixing plate are channel steel, and the oblique connecting plate is angle steel；The supporting structure
After installation, the distance between the line of two sunpenders and auxiliary fixing bolt be 500mm~800mm, it is secondary apart from when, oblique company
Fishplate bar can play the role of good Auxiliary support to bracket.
Compared with the prior art, the advantages of the present invention are as follows:
(1) construction method of the invention only raggle and need to open three through-holes on the pavement of bridge in slot, by combustion gas
Duct segments are mounted on special supporting structure, then supporting structure is fastenedly connected i.e. by these three through-holes and bridge
Can, relative to the existing construction method for being implanted into numerous chemical bolts on bridge floor, method of the invention is punched on bridge floor
Few, difficulty of construction is small, and engineering construction is at low cost.
(2) installation fixation is carried out to gas pipeline using special supporting structure, sunpender, bracket, oblique connecting plate and auxiliary
It helps fixed plate to be formed together the structure for being similar to triangle, gas pipeline is avoided to be subjected to displacement from all directions, even
It connects solid and reliable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the schematic diagram slotted, punched on bridge in construction method of the present invention.
Fig. 2 is the schematic diagram being hung to duct section in construction method of the present invention below the edge of a wing.
Fig. 3 is the schematic diagram for placing cucurbit door frame in construction method of the present invention on bridge floor.
Fig. 4 is that guide chain and suspension hook are down to the schematic diagram under bridge floor in construction method of the present invention.
Fig. 5 is the schematic diagram for connecting suspension hook with drag-line in construction method of the present invention.
Fig. 6 is the schematic diagram that guide chain declines together with duct section in construction method of the present invention.
Fig. 7 is the schematic diagram that hook and the drag-line of crane in construction method of the present invention separate.
Fig. 8 is the schematic diagram that guide chain pulls duct section to rise in construction method of the present invention.
Fig. 9 be construction method of the present invention in construction personnel bridge floor lower mounting bracket structure schematic diagram.
Figure 10 is installation of gas pipeline after the completion along the structural schematic diagram of bridge side.
Figure 11 is the partial enlarged view in Figure 10 at A.
Figure 12 is the cross-section of bridge schematic diagram after the completion of installation of gas pipeline.
Figure 13 is the partial enlarged view in Figure 12 at B.
Marginal data:
1, pavement；2, groove；3, hanger hole；4, bearing hole；5, duct section；6, drag-line；7, the edge of a wing；8, cucurbit door frame；
9, bottle gouard moved by hands；10, hanging basket；11, drag hook；12, mobile lower extension operating platform；13, bracket；14, latch closure；15, sunpender；16,
Auxiliary fixing plate；17, auxiliary fixing bolt；18, oblique connecting plate；91, guide chain；92, suspension hook；141, stationary half；142, living
Dynamic semi-ring.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
It should be strongly noted that when to be described as " be fixed on, be fixed in, be connected to or be connected to " another for a certain element
When on element, it can be directly fixed, affixed, connection or is connected on another element, be also possible to by connecting among other
Fitting is indirectly fixed, affixed, connects or is connected on another element.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Embodiment 1:
A kind of bridge downside installation of gas pipeline construction method of the invention, flow diagram is as shown in Figures 1 to 10,
It mainly comprises the steps that
The first step, on the pavement of bridge 1 along bridge to opening up multiple " T " shaped grooves 2, the edge in each groove 2
Bridge makes a call to three through-holes from top to bottom, and for three through-holes along suitable bridge to arrangement in the shape of " pin ", one of them is hanger hole 3, and
Other two is bearing hole 4, and the distance between line and hanger hole 3 of two bearing holes 4 are 650mm, and two bearing holes 4 are along cross
Then gas pipeline (epoxy anticorrosion steel pipe) to be laid is placed on pavement 1 by bridge to arrangement, and gas pipeline is cut into
Multiple duct sections 5.
Second step bundlees drag-line 6 at the middle part of duct section 5, hooks drag-line 6 for duct section 5 with the hook of a crane
It slings, then duct section 5 is extend out to the outside of bridge, then the duct section 5 is down to the lower section on the edge of a wing 7 of bridge.
Third step installs cucurbit door frame 8 on pavement 1 at groove 2, installs one in the middle part of the crossbeam of cucurbit door frame 8
A bottle gouard moved by hands 9, the bottle gouard moved by hands 9 are installed on the surface of hanger hole 3, and the guide chain 91 of bottle gouard moved by hands 9 and suspension hook 92 are passed through
Hanger hole 3 and the lower section for stretching to the edge of a wing 7.
4th step hangs hanging basket 10 on the hook of another crane, and staff enters in hanging basket 10, risen by this
Heavy-duty machine slings hanging basket 10, and hanging basket 10 is extend out to the outside of bridge, then hanging basket 10 is down to the lower section on the edge of a wing 7, makes hanging basket
10 duct sections 5 sling close in second step.
5th step, the staff to stand in hanging basket 10 hold drag hook 11 and guide chain 91 and suspension hook 92 further, and by suspension hook
92 hook drag-line 6.
The crane that 6th step, operation sling duct section 5 declines duct section 5, while operating bottle gouard moved by hands 9 for guide chain 91
With suspension hook 92 as duct section 5 declines, guide chain 91 is in tensioned state during decline, the duct section 5 under the pulling force of guide chain 91
Mobile to the underface of hanger hole 3 while decline, the hook of crane and drag-line 6 are detached from moving process.
7th step, operation bottle gouard moved by hands 9 sling duct section 5 to predetermined installation site, flat by hanging operation under movable type
Staff is transported to the lower section on the edge of a wing 7 by platform 12, is located at the work people of 7 lower section of the edge of a wing (on the lower extension operating platform 12 of movable type)
Bracket 13 is placed in the lower section of duct section 5 by member, and is carried out duct section 5 and bracket 13 tightly by two latch closures 14 on bracket 13
It is solidly connected, there are gap between two latch closures 14, the both ends of bracket 13 offer a lifting through-hole, each lifting through-hole
It is inside equipped with a sunpender 15, the lower end of sunpender 15 is fastenedly connected by nut with bracket 13, the upper end point of two sunpenders 15
Not Chuan Guo two bearing holes 4 extend out to bridge floor or more, and the upper end of sunpender 15 is fastenedly connected with bridge floor by nut.
8th step, the staff hung on operating platform 12 under movable type unclamp suspension hook 92 and drag-line 6, on bridge floor
Construction personnel operate bottle gouard moved by hands 9 and pull out guide chain 91 and suspension hook 92 from hanger hole 3, be located at mobile lower extension operating platform 12
On staff in the downside on the edge of a wing 7, auxiliary fixing plate 16 is set, the middle part of the auxiliary fixing plate 16 offers positioning through hole,
The positioning through hole is placed in the underface of hanger hole 3, and auxiliary fixing plate 16 is arranged along direction across bridge, in hanger hole 3 and positioning
An auxiliary fixing bolt 17 is worn in through-hole, and the upper end of the auxiliary fixing bolt 17 is fastenedly connected by nut and bridge floor,
The lower end of auxiliary fixing bolt 17 is fastenedly connected by nut with auxiliary fixing plate 16, and by auxiliary fixing plate 16 and the edge of a wing 7
Downside it is affixed；
9th step welds two oblique connecting plates 18 between auxiliary fixing plate 16 and bracket 13, and makes two oblique companies
Fishplate bar 18 is located at the two sides of duct section 5；
Tenth step constructs remaining duct section 5 using the method for step 2 to step 9, then by adjacent pipe
Road section 5 is welded, that is, completes the cable laying operation of entire gas pipeline.
Embodiment 2:
As shown in Figure 10 to Figure 13, the working supporting structure of installation of gas pipeline on the downside of a kind of bridge of the invention, packet
Include bracket 13, latch closure 14, sunpender 15, auxiliary fixing plate 16, auxiliary fixing bolt 17 and oblique connecting plate 18.Wherein, latch closure 14
It is mounted on bracket 13, the both ends of bracket 13 offer a lifting through-hole (not shown) in the two sides of latch closure 14 respectively.
Sunpender 15 is two, and two sunpenders 15 are arranged in respectively in two lifting through-holes, and the upper and lower ends of sunpender 15 are equipped with nut, hang
The lower end of bar 15 is fastenedly connected by nut with bracket 13.The middle part of auxiliary fixing plate 16 is provided with positioning through hole, and spiral shell is auxiliarily fixed
Bolt 17 is arranged in the positioning through hole, and the upper and lower ends of auxiliary fixing bolt 17 are equipped with nut, under auxiliary fixing bolt 17
End is fastenedly connected by nut with auxiliary fixing plate 16.The both ends of oblique connecting plate 18 respectively with bracket 13 and auxiliary fixing plate 16
Welding.
In the present embodiment, the quantity of latch closure 14 is two, and two latch closures 14 are along the line side for lifting through-hole perpendicular to two
To setting, and between two latch closures 14, there are gaps.Latch closure 14 consists of two parts, including stationary half 141 and activity
Semi-ring 142.Wherein, stationary half 141 is installed on bracket 13, and movable semi-ring 142 is removable by bolt and stationary half 141
The connection unloaded.
In the present embodiment, oblique connecting plate 18 is two pieces, and two pieces of oblique connecting plates 18 are respectively welded at bracket 13 and auxiliary
The both ends of fixed plate 16.Bracket 13 and auxiliary fixing plate 16 are all made of channel steel, and oblique connecting plate 18 uses angle steel.
When the supporting structure is installed, bracket 13 is first placed in the lower section of gas pipeline, gas pipeline is made to be placed on fixed half
On ring 141, movable semi-ring 142 is placed in stationary half 141, by bolt by stationary half 141 and movable semi-ring 142 into
Row is fastenedly connected, and is fixed on gas pipeline on bracket 13, then two sunpenders 15 are threaded through respectively in two lifting through-holes,
The lower end of sunpender 15 is fastenedly connected by bolt with bracket 13, and the upper end of sunpender 15 passes through the bearing hole 4 on bridge, and passes through spiral shell
Mother is fastenedly connected the upper end of sunpender 15 with bridge floor, then on the downside of bridge floor at hanger hole 3 affixed setting auxiliary fixing plate 16,
Keep the positioning through hole on auxiliary fixing plate 16 corresponding with hanger hole 3, auxiliary fixing bolt 17 is threaded through positioning through hole and hangs
In frame aperture 3, the lower end of auxiliary fixing bolt 17 is fastenedly connected by bolt with auxiliary fixing plate 16, auxiliary fixing bolt 17 it is upper
End is fastenedly connected by bolt and bridge floor, and making the distance between line and auxiliary fixing bolt 17 of two sunpenders 15 is 500mm
~800mm welds oblique connecting plate 18 at the both ends of bracket 13 and the both ends of auxiliary fixing plate 16, is formed from class in terms of bridge side
It is similar to the supporting structure of triangle.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. installation of gas pipeline construction method on the downside of a kind of bridge, comprising the following steps:
S1, on the pavement (1) of bridge along bridge to opening up multiple grooves (2), in each groove (2) along bridge from up to
Under make a call to three through-holes, three through-holes along bridge, to arrangement in the shape of " pin ", one of them is hanger hole (3), other two
For bearing hole (4), two bearing holes (4) are arranged along direction across bridge, and gas pipeline to be laid is cut into multiple duct sections
(5)；
S2, drag-line (6) are bundled at the middle part of duct section (5), hooks drag-line (6) with crane and sling duct section (5), by pipeline
Section (5) extend out to the outside of bridge, then the duct section (5) is down to the lower section on the edge of a wing (7) of bridge；
S3, cucurbit door frame (8) are installed at groove (2) on pavement (1), are equipped on the crossbeam of the cucurbit door frame (8)
Bottle gouard moved by hands (9), the bottle gouard moved by hands (9) are installed on the surface of the hanger hole (3), the guide chain (91) of bottle gouard moved by hands (9)
Hanger hole (3) are passed through with suspension hook (92) and stretch to the lower section of the edge of a wing (7)；
S4, it is hung on the hook of another crane hanging basket (10), staff enters in the hanging basket (10), is risen by this
Heavy-duty machine slings hanging basket (10), and hanging basket (10) is extend out to the outside of bridge, then hanging basket (10) is down under the edge of a wing (7)
Side, the duct section (5) for slinging hanging basket (10) close in step S2；
Staff in S5, hanging basket (10) holds drag hook (11) and guide chain (91) and suspension hook (92) furthers, by suspension hook (92) hook
Firmly drag-line (6)；
The crane that S6, operation sling duct section (5) declines duct section (5), while operating bottle gouard moved by hands (9) for guide chain (91)
With suspension hook (92) as duct section (5) decline, guide chain (91) is in tensioned state during decline, under the pulling force of guide chain (91)
Duct section (5) is mobile to the underface of hanger hole (3) while decline, and the lifting of duct section (5) is sling in moving process
The hook of machine and drag-line (6) are detached from；
S7, operation bottle gouard moved by hands (9) sling duct section (5) to predetermined position, will by hanging operating platform (12) under movable type
Staff is transported to the lower section of the edge of a wing (7), is located at the staff below the edge of a wing (7) and bracket (13) is placed in duct section (5)
Lower section, and duct section (5) and bracket (13) are fastenedly connected by latch closure (14), the both ends of the bracket (13) are opened
There is a lifting through-hole, worn a sunpender (15) in each lifting through-hole, the lower end of sunpender (15) passes through nut and bracket
(13) it is fastenedly connected, the upper end of two sunpenders (15) is each passed through two bearing holes (4) and extend out to bridge floor or more, and passes through nut
The upper end of sunpender (15) is fastenedly connected with bridge floor；
S8, suspension hook (92) and drag-line (6) are unclamped, operation bottle gouard moved by hands (9) is by guide chain (91) and suspension hook (92) from hanger hole (3)
It pulls out, auxiliary fixing plate (16) is set in the downside of the edge of a wing (7), are provided with positioning through hole in the middle part of the auxiliary fixing plate (16),
The positioning through hole is placed in the underface of hanger hole (3), auxiliary fixing plate (16) is arranged along direction across bridge, in hanger hole (3) and
An auxiliary fixing bolt (17) are worn in positioning through hole, and the upper end of auxiliary fixing bolt (17) is connected by nut and bridge floor fastening
It connects, the lower end of auxiliary fixing bolt (17) is fastenedly connected by nut with auxiliary fixing plate (16), and by auxiliary fixing plate (16)
It is affixed with the downside of the edge of a wing (7)；
S9, two oblique connecting plates (18) are welded between auxiliary fixing plate (16) and bracket (13), and make two oblique connections
Plate (18) is located at the two sides of duct section (5)；
S10, remaining duct section (5) are constructed using the method for step S2 to step S9, then by adjacent duct section
(5) it is welded, that is, completes the cable laying operation of entire gas pipeline.
2. installation of gas pipeline construction method on the downside of bridge according to claim 1, it is characterised in that: two load-bearing
The distance between the line in hole (4) and the hanger hole (3) are 500mm~800mm.
3. installation of gas pipeline construction method on the downside of bridge according to claim 1 or 2, it is characterised in that: in step S7,
The bracket (13) is fastenedly connected by two latch closures (14) with the duct section (5), and two latch closures (14) are along duct section
(5) axial direction arranges that there are gaps between two latch closures (14).
4. bracket used in installation of gas pipeline construction method on the downside of a kind of bridge according to any one of claims 1 to 3
Structure, it is characterised in that: including bracket (13), latch closure (14), sunpender (15), auxiliary fixing plate (16), auxiliary fixing bolt
(17) it is set on the bracket (13) with oblique connecting plate (18), the latch closure (14), the both ends of bracket (13) are in latch closure (14)
Two sides open up a lifting through-hole respectively, the sunpender (15) is two, two sunpenders (15) be arranged in two respectively described in hang
It fills in through-hole, the lower end of sunpender (15) is fastenedly connected by nut with bracket (13), is opened in the middle part of the auxiliary fixing plate (16)
There is positioning through hole, the auxiliary fixing bolt (17) is arranged in the positioning through hole, and the lower end of auxiliary fixing bolt (17) is logical
It crosses nut to be fastenedly connected with auxiliary fixing plate (16), the both ends of the oblique connecting plate (18) are solid with bracket (13) and auxiliary respectively
Fixed board (16) welding.
5. supporting structure according to claim 4, it is characterised in that: the latch closure (14) is two, two latch closures (14)
It is arranged along the line direction for lifting through-hole perpendicular to two, there are gaps between two latch closures (14).
6. supporting structure according to claim 4, it is characterised in that: the latch closure (14) include stationary half (141) and
Movable semi-ring (142), the stationary half (141) are installed on bracket (13), and the activity semi-ring (142) is by bolt and admittedly
Determine semi-ring (141) removably to connect.
7. supporting structure according to claim 4, it is characterised in that: the oblique connecting plate (18) is two pieces, and two pieces tiltedly
It is respectively welded to connecting plate (18) in the both ends of bracket (13) and auxiliary fixing plate (16).
8. the supporting structure according to any one of claim 4~7, it is characterised in that: the bracket (13) and auxiliary are solid
Fixed board (16) is channel steel, and the oblique connecting plate (18) is angle steel；After the supporting structure installation, the company of two sunpenders (15)
The distance between line and auxiliary fixing bolt (17) are 500mm~800mm.
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| CN108105476B (en) * | 2017-12-13 | 2020-11-10 | 中国二十冶集团有限公司 | Anti-shaking fixing method for siphon drain pipe crossing grid structure |
| CN114790691B (en) * | 2022-04-14 | 2023-10-20 | 通号建设集团有限公司 | Construction method for under-bridge steel structure pipe gallery channel |
| CN116608324B (en) * | 2023-05-29 | 2024-03-15 | 中铁二十四局集团有限公司 | Underground pipeline reinforcing structure below river-crossing bridge under tunnel construction |
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| CN103123016A (en) * | 2013-02-28 | 2013-05-29 | 浙江国联设备工程有限公司 | Construction method for laying gas pipelines along bridge |
| CN203147030U (en) * | 2013-02-28 | 2013-08-21 | 浙江国联设备工程有限公司 | Mobile under-hanging operating platform for construction of laying gas pipeline along bridge |
| CN103486330A (en) * | 2013-10-02 | 2014-01-01 | 中国二十二冶集团有限公司 | Method for installing and constructing high-altitude pipeline inside workshop |
| CN105090613A (en) * | 2015-08-03 | 2015-11-25 | 上海申能能源服务有限公司 | Hoisting method of gas pipeline in external wall of super high-rise building |
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| KR20130095837A (en) * | 2008-05-29 | 2013-08-28 | 볼보 컨스트럭션 이큅먼트 에이비 | Pipelayer with cab riser |
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| CN103123016A (en) * | 2013-02-28 | 2013-05-29 | 浙江国联设备工程有限公司 | Construction method for laying gas pipelines along bridge |
| CN203147030U (en) * | 2013-02-28 | 2013-08-21 | 浙江国联设备工程有限公司 | Mobile under-hanging operating platform for construction of laying gas pipeline along bridge |
| CN103486330A (en) * | 2013-10-02 | 2014-01-01 | 中国二十二冶集团有限公司 | Method for installing and constructing high-altitude pipeline inside workshop |
| CN105090613A (en) * | 2015-08-03 | 2015-11-25 | 上海申能能源服务有限公司 | Hoisting method of gas pipeline in external wall of super high-rise building |
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