CN113889921A - Anti-collision wall pipeline threading construction method - Google Patents
Anti-collision wall pipeline threading construction method Download PDFInfo
- Publication number
- CN113889921A CN113889921A CN202111169615.3A CN202111169615A CN113889921A CN 113889921 A CN113889921 A CN 113889921A CN 202111169615 A CN202111169615 A CN 202111169615A CN 113889921 A CN113889921 A CN 113889921A
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- China
- Prior art keywords
- threading
- pipeline
- rope
- buoy
- cable
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000011010 flushing procedure Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 239000008400 supply water Substances 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 2
- 229920000742 Cotton Polymers 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 229920006052 Chinlon® Polymers 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/086—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using fluid as pulling means, e.g. liquid, pressurised gas or suction means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0462—Tubings, i.e. having a closed section
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/36—Installations of cables or lines in walls, floors or ceilings
- H02G3/38—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts
- H02G3/386—Installations of cables or lines in walls, floors or ceilings the cables or lines being installed in preestablished conduits or ducts in walls
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to the technical field of bridge pipeline threading, in particular to a threading construction method for a pipeline of an anti-collision wall. Compared with the traditional threading process, the invention improves the one-time passing rate of the facility pipeline threading, saves the construction period, reduces the construction cost, solves the problem of difficult threading of small corners and multiple corners of the facility pipeline, improves the construction efficiency and reduces the construction period.
Description
Technical Field
The invention belongs to the technical field of bridge pipelines, and particularly relates to a threading construction method for an anti-collision wall pipeline.
Background
At present, the traditional glass fiber reinforced plastic threading device is used for construction in the prior bridge facility pipeline threading operation in China, and the glass fiber reinforced plastic threading device is suitable for pipelines which are straight and have few corners. But domestic viaducts are diversified in style, bent corners of facility pipelines in anti-collision walls of the viaducts generally exist, the bent corners are mostly arranged at junctions of widening or narrowing lanes and converging and diverging of main bridges and ramps, and especially the threading of the multi-corner pipelines, communicated by bottom plates, of the pipelines in the anti-collision walls on two sides is the most complicated. The anti-collision wall construction pipeline has the advantages that the anti-collision wall construction pipeline is difficult and heavy to thread at the joint of the main beam and the ramp, the threading one-time passing rate of facility cable threading is low due to the existence of various corners, the threading is achieved, the consumed working hours are large, the construction period is slowed down, and the construction cost is increased.
Disclosure of Invention
The invention provides a threading construction method for pipelines of an anti-collision wall, aiming at solving the defects of the prior art.
The invention is realized by the following technical scheme:
a threading construction method for pipelines of an anti-collision wall comprises the following steps:
connecting a threading device: the buoy is fixedly connected with one end of a threading rope through a steel wire, and the length of the threading rope is larger than that of the pipeline.
(II) pipeline pressurization flushing: after the threading device is connected, the buoy and the threading rope are placed into the pipeline opening at one end of the pipeline, the other end of the threading rope is fixed outside the pipeline, the pipeline opening where the buoy is placed is blocked by the water hose, and then the water hose is used for pressurizing and flushing water into the pipeline.
(III) floating and surging: when the buoy gushes out from the other end of the pipeline along with water, the buoy is taken up to stop pressurizing and flushing, the other end of the threading rope is connected with the cable, and the threading rope at the end of the buoy is pulled to pull the cable to pass through the pipeline.
As a preferable scheme:
in the step (III), a pulley is connected between the other end of the threading rope and the cable, the two ends of a bracket of the pulley are respectively and fixedly connected with the threading rope and the cable, and the pulley rolls on a horizontal plane.
In the step (I), the buoy is an oval buoy, and the length of the long axis of the oval buoy is 50-90 mm.
The minor axis length of the elliptical buoy is 8-12mm greater than the diameter of the cable.
And (II) adopting a pressurized water supply device to supply water to the water supply belt for pressurized flushing.
And in the step (II), a water spraying vehicle is adopted to supply water to the water supply belt for pressurization flushing.
The front end of the water band is fixedly connected with the conical spray head.
And (III) winding the cable on a pay-off rack or a pay-off vehicle.
And (3) in the step (III), when the threading rope is fixed with the cable, cutting off an insulating layer at the front end of the cable, and then fixing and binding the cable core and the threading rope together through a steel wire.
The threading rope is a chinlon rope with the diameter of 8 mm.
Compared with the traditional threading process, the anti-collision wall pipeline threading construction method improves the one-time passing rate of the facility pipeline threading, saves the construction period and reduces the construction cost; meanwhile, the pipeline threading device for the anti-collision wall is convenient to carry, eliminates the heaviness of the traditional threading device, and is simple to manufacture and operate; the invention solves the problem of difficult threading of small corners and multiple corners of the facility pipeline, improves the construction efficiency, reduces the construction period and returns to the home earlier.
Drawings
Fig. 1 is a schematic structural view of the pulley of the present embodiment.
Description of the drawings: 1, a pulley; 2, a bracket; threading a rope; 4 cables.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
The threading device comprises a buoy, wherein the buoy is connected with a threading rope 3, is placed at one end of a pipeline, is flushed into the pipeline, floats from one end of the pipeline of the anti-collision wall to the other end of the pipeline by utilizing water pressure, then connects the end of the threading rope 3 far away from one end of the buoy with a cable 4, and pulls the threading rope 3 at the end of the buoy to enable the cable 4 to pass through the pipeline, so that the threading of the pipeline is realized.
Selecting a float: according to the invention, the preferable buoy is a spherical buoy, and the more preferable buoy is an elliptical buoy. Experiments prove that when the length of the long axis of the elliptical buoy is three-quarters of the inner diameter of the pipeline, the water inlet contact surface and the buoyancy of the elliptical buoy are large, the blockage by the pipe wall is small, and the passing rate is high. Therefore, the length of the long axis of the optimized elliptical buoy is 50-90 mm, the elliptical buoy is suitable for various pipelines with the diameters of 70-150 mm, and elliptical buoys with different sizes are selected according to different sizes of pipelines in actual construction. In addition, it is preferred that the minor axis length of the elliptical float is 8-12mm greater than the diameter of the cable 4.
Selection of a threading rope 3: the threading rope 3 firstly meets the tensile requirement and can drag a cable with larger weight; secondly, the threading rope 3 is required to have good toughness, small density, softness and large buoyancy and can smoothly float under the action of the float along with water flow. Through optimization, the nylon rope meets various requirements, so that the nylon rope is preferably used as the threading rope 3, and the nylon rope with the diameter of 8mm is preferably used as the threading rope 3.
The construction method for threading the pipeline of the anti-collision wall by adopting the threading device comprises the following steps:
first, connect threading apparatus
One end of the buoy and one end of the threading rope 3 are fixedly connected together through a steel wire, the length of the threading rope 3 is larger than that of the pipeline, the other end of the threading rope 3 can be fixed at any place outside the pipeline, or the other end of the threading rope 3 can be directly held by hands.
Second, pipeline pressurization flushing
The back is connected to the threading apparatus, put into the pipeline mouth of pipeline one end with the threading rope 3 of cursory and connection, the other end that will wear the cotton rope 3 fix outside the pipeline can, then block up the pipeline mouth of this one end of placing cursory and threading rope 3 with the water tape, water tape connection pressurization water supply equipment, for example the watering lorry, then wash by water to pressurizeing in the pipeline through the hosepipe, the impact force of utilization water drives cursory through each turning along rivers, thereby it passes the pipeline to drive threading rope 3.
In order to achieve better pipeline plugging effect, a conical spray head is preferably fixedly connected to the front end of the water hose, namely the spray head is conical, the diameter of the front end of the spray head is small, and the diameter of the spray head is gradually increased from the front end to the rear end of the spray head, so that pipelines with different diameters can be plugged through the conical spray head, and the pipelines can be plugged better. Conical spray heads have many applications in life and are well known components and will not be described in detail here.
Thirdly, the buoy gushes out
Observe whether the other end of pipeline has the cursory to gush out, after the cursory gushes out from the pipeline other end along with rivers, then take up the cursory and stop the pressurization and wash by water, pass through the steel wire with the other end of threading rope 3 and cable 4 and be fixed together, then pull the threading rope 3 of cursory one end outward to the pipeline to traction cable 4 passes the pipeline, so far the pipeline threading is successful.
During construction, the cable 4 which does not enter the pipeline needs to be wound on a pay-off rack or a pay-off vehicle, the cable 4 is not suitable to be dragged on the ground so as to prevent the cable insulation layer from being damaged, and the cable 4 is gradually released into the pipeline through the pay-off rack or the pay-off vehicle.
When threading cotton rope 3 and cable 4 and fixing, can cut the insulating layer of the foremost small segment of cable 4, then fix cable 4 sinle silk and threading cotton rope 3 through the steel wire and tie up together. The cable 4 can be pulled manually when being pulled, and the cable 4 can also be pulled through equipment.
In order to make the cable 4 easier to pass around the corner, in the third step, the pulley 1 is connected between the other end of the threading rope 3 and the cable 4, the pulley 1 generally comprises a shaft, a wheel and a bracket 2, the two ends of the bracket 2 of the pulley 1 are respectively fixedly connected with the threading rope 3 and the cable 4, the threading rope and the cable 4 are bound together through steel wires, and the pulley 1 rolls on the horizontal plane, namely the side surface of the pulley 1 is parallel to the bottom surface of the pipeline, and the wheel rotates on the horizontal plane when rotating, therefore, when encountering the corner of the pipeline, the wheel of the pulley 1 firstly contacts with the corner and rolls along the corner, thereby easily passing around the corner of the pipeline and driving the following cable 4 to easily pass through the corner.
The above-described embodiment is only one of the preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. A threading construction method for pipelines of an anti-collision wall comprises the following steps:
connecting a threading device: fixedly connecting one ends of the buoy and the threading rope (3) together through a steel wire, wherein the length of the threading rope (3) is greater than that of the pipeline;
(II) pipeline pressurization flushing: after the threader is connected, the buoy and the threading rope (3) are placed in a pipeline opening at one end of a pipeline, the other end of the threading rope (3) is fixed outside the pipeline, a water belt blocks the pipeline opening where the buoy is placed, and then the pipeline is pressurized and flushed by the water belt;
(III) floating and surging: when the buoy gushes out from the other end of the pipeline along with water, the buoy is taken up to stop pressurizing and flushing, the other end of the thread penetrating rope (3) is connected with the cable (4), and the thread penetrating rope (3) at the end of the buoy is pulled to pull the cable (4) to penetrate through the pipeline.
2. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: in the step (III), a pulley (1) is connected between the other end of the threading rope (3) and the cable (4), the two ends of a support (2) of the pulley (1) are respectively and fixedly connected with the threading rope (3) and the cable (4), and the pulley (1) rolls on the horizontal plane.
3. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: in the step (I), the buoy is an oval buoy, and the length of the long axis of the oval buoy is 50-90 mm.
4. The anti-collision wall pipeline threading construction method according to claim 3, characterized in that: the length of the minor axis of the elliptical buoy is 8-12mm larger than the diameter of the cable (4).
5. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: and (II) adopting a pressurized water supply device to supply water to the water supply belt for pressurized flushing.
6. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: and in the step (II), a water spraying vehicle is adopted to supply water to the water supply belt for pressurization flushing.
7. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: the front end of the water band is fixedly connected with the conical spray head.
8. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: and in the step (III), the cable (4) is wound on a pay-off rack or a pay-off vehicle.
9. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: and in the step (III), when the thread penetrating rope (3) is fixed with the cable (4), the insulating layer at the front end of the cable (4) is cut off, and then the wire core of the cable (4) and the thread penetrating rope (3) are fixedly bound together through the steel wire.
10. The anti-collision wall pipeline threading construction method according to claim 1, characterized in that: the threading rope (3) is a nylon rope with the diameter of 8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169615.3A CN113889921A (en) | 2021-10-08 | 2021-10-08 | Anti-collision wall pipeline threading construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111169615.3A CN113889921A (en) | 2021-10-08 | 2021-10-08 | Anti-collision wall pipeline threading construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113889921A true CN113889921A (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111169615.3A Pending CN113889921A (en) | 2021-10-08 | 2021-10-08 | Anti-collision wall pipeline threading construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113889921A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6464518A (en) * | 1987-09-02 | 1989-03-10 | Sumitomo Coal Mining | Wire passing method |
| JPH06245343A (en) * | 1993-02-19 | 1994-09-02 | Toa Kikai Kogyo Kk | Wire passing device |
| CN202197074U (en) * | 2011-02-28 | 2012-04-18 | 亓恒洪 | Floater type cable laying apparatus |
| CN206820369U (en) * | 2017-06-21 | 2017-12-29 | 国网浙江新昌县供电公司 | Power cable float-ball type pipe perforator |
| CN211046264U (en) * | 2020-01-14 | 2020-07-17 | 陈国梁 | Threading construction device for building electrical engineering |
| CN111463719A (en) * | 2020-04-17 | 2020-07-28 | 五冶集团上海有限公司 | A electric wire threading device for building electrical pre-buried pipe |
-
2021
- 2021-10-08 CN CN202111169615.3A patent/CN113889921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6464518A (en) * | 1987-09-02 | 1989-03-10 | Sumitomo Coal Mining | Wire passing method |
| JPH06245343A (en) * | 1993-02-19 | 1994-09-02 | Toa Kikai Kogyo Kk | Wire passing device |
| CN202197074U (en) * | 2011-02-28 | 2012-04-18 | 亓恒洪 | Floater type cable laying apparatus |
| CN206820369U (en) * | 2017-06-21 | 2017-12-29 | 国网浙江新昌县供电公司 | Power cable float-ball type pipe perforator |
| CN211046264U (en) * | 2020-01-14 | 2020-07-17 | 陈国梁 | Threading construction device for building electrical engineering |
| CN111463719A (en) * | 2020-04-17 | 2020-07-28 | 五冶集团上海有限公司 | A electric wire threading device for building electrical pre-buried pipe |
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Application publication date: 20220104 |