CN110657280B - Pipeline elevation control device and method - Google Patents
Pipeline elevation control device and method Download PDFInfo
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- CN110657280B CN110657280B CN201910759227.7A CN201910759227A CN110657280B CN 110657280 B CN110657280 B CN 110657280B CN 201910759227 A CN201910759227 A CN 201910759227A CN 110657280 B CN110657280 B CN 110657280B
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- pipeline
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- cover plate
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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Abstract
The application provides a pipeline elevation control device and method, and belongs to the technical field of pipeline construction. Pipeline elevation controlling means includes: the pipeline limiting plate is covered on the underground dragging pipeline and is used for limiting the dragging track of the pipeline; the lower end of the supporting frame is connected to the pipeline limiting plate, and the upper end of the supporting frame is fixed on the ground. The pipeline elevation control method comprises the following steps: the method comprises the following steps of firstly, acquiring construction data and at least two construction well positions; step two, excavating a foundation pit at the position of the construction well site, and arranging a protective structure in the foundation pit; step three, drilling and cleaning slurry; hoisting the two pipeline elevation control devices into two construction well positions respectively, adjusting the elevation of the pipeline elevation control devices, and positioning and fixing the pipeline elevation control devices; and fifthly, dragging construction is carried out on the pipeline. In this application, adopt pipeline elevation controlling means to control the elevation of pipeline spacing, guarantee the effective length of pipeline in the underground, avoided the problem of buckling of pipeline.
Description
Technical Field
The invention belongs to the technical field of pipeline construction, and particularly relates to a device and a method for controlling the elevation of a pipeline in the process of construction in a sandbank region, which realize the control of the elevation of a straight-line pipe end in the dragging process of the pipeline and ensure the effective length of the straight-line pipe end.
Background
Along with the rapid development of urbanization, buildings and roads in cities are increased, and urban underground pipelines are also increased, so that the construction site is very limited or even smaller and smaller in the engineering construction process. Therefore, in the construction process, the open excavation process can bring great influence on other original underground pipelines, traffic and environment of the city, the difficulty of the open excavation is increased continuously, and the laying construction operation of the underground pipelines is even severely limited. The trenching-free pipe drawing technology can solve the problems caused by the grooving pipe drawing technology, can ensure normal traffic operation, reduce labor force, save engineering cost, reduce the environment to the maximum extent and shorten the engineering time.
And the non-slotted pipeline construction technology is used in the environment of high underground water level of the sandbars, soft sandy soil and a quicksand layer in the ground, the pipeline floats upwards due to the high underground water level in the dragging process, the angle of the earlier section is reduced due to the soft sandy soil, and the elevation of the end of the straight-line section is upwards caused by straightening the pipeline. The stable slurry retaining wall cannot be formed due to the existence of the quicksand layer underground, so that the elevation of the pipe end of the straight-line section is moved upwards due to the increase of the dragging force of the pipeline, and the elevation of construction in a sandbank environment is difficult to control.
Disclosure of Invention
In view of the above, the present invention aims to provide a pipeline elevation control device and method, so as to solve the problems of difficulty in performing elevation control and length guarantee of straight-line segment in high-water-level sandy soil areas close to coastal areas, along rivers and tidal flat zones.
This application first aspect provides a pipeline elevation controlling means, includes:
the pipeline limiting plate is covered on an underground dragging pipeline and used for limiting the dragging track of the pipeline;
the lower end of the supporting frame is connected to the pipeline limiting plate, and the upper end of the supporting frame is fixed on the ground.
Preferably, the duct limiting plate includes:
the cover plate is semicircular in radial section, two ends of the cover plate are turned over outwards and are in smooth transition with the cover plate, and the cover plate is provided with a mounting hole;
the elastic protection strip is connected to the inner wall surface of the cover plate through the mounting hole and used for protecting the cover plate and the pipeline;
and the pulley is connected to the inner wall surface of the cover plate in a sliding way through the mounting hole and used for guiding the pipeline when the cover plate slides along the axial direction of the cover plate.
Preferably, be provided with on the outer wall of pipeline limiting plate with the rib, it is a plurality of add the crisscross setting each other of rib.
Preferably, the support frame comprises:
the lower end of the lower truss is connected to the outer wall of the pipeline limiting plate;
the lower end of the upper truss is connected with the upper end of the lower truss, the interval distance between the lower end face of the upper truss and the upper end face of the lower truss is adjustable, and a counterweight is arranged at the upper end of the upper truss.
Preferably, the upper truss and the lower truss are connected through bolts, so that the spacing distance between the lower end face of the upper truss and the upper end face of the lower truss is adjustable;
the lower end of the upper truss is provided with a first threaded hole group, and the first threaded hole group comprises a plurality of first threaded holes distributed towards the upper end of the upper truss;
the upper end of the lower truss is provided with a second threaded hole group, and the second threaded hole group comprises a plurality of second threaded holes distributed towards the lower end of the lower truss;
the upper truss and the lower truss are connected with different first threaded holes and second threaded holes through the bolts and are used for movably adjusting the upper truss and the lower truss support.
Preferably, the upper end of the upper truss is provided with a bearing plate, and the upper truss is fixed on the ground through the bearing plate.
In a second aspect of the present application, there is provided a method for controlling a pipeline elevation, in which the above-mentioned pipeline elevation control device is applied, and the method includes the following steps:
the method comprises the following steps of firstly, acquiring construction data and at least two construction well positions;
secondly, excavating a foundation pit at the position of the construction well site, and arranging a protective structure in the foundation pit;
step three, drilling and cleaning slurry;
hoisting the two pipeline elevation control devices into the two construction well positions respectively, adjusting the elevation of the pipeline elevation control devices, and positioning and fixing the pipeline elevation control devices;
and fifthly, carrying out dragging construction on the pipeline.
Preferably, in the first step, the construction data includes a construction length, a topline height and a ground surface height of the pipeline;
and determining the position of the construction well position according to the pipeline installation route, wherein the construction well position is arranged at the joint of the deflecting section and the straight section of the pipeline.
Preferably, protective structure in step two is including setting up protection steel sheet around the foundation ditch, protection steel sheet with reserve clearance more than or equal to one meter between the pipeline elevation controlling means.
Preferably, in the fourth step, the length of the supporting frame is adjusted according to the height of the top mark of the pipeline;
will pipeline elevation controlling means hoists arrive in the foundation ditch lay the sleeper between bearing plate and the ground, make pipeline limiting plate adaptation arrives the elevation position of pipeline, and the bearing plate sets up the counterweight fixes a position fixedly.
The application has the following beneficial effects:
the utility model provides a pipeline elevation controlling means and method can effectively avoid the scraping of pipeline and apron through the elasticity protection strip and the pulley that increase, ensures the quality of pipeline, and the turn-ups and the pulley at apron both ends have the effect of reinforcing direction, are favorable to the dilatory of pipeline, effectively avoid the damage such as buckling of pipeline. The height of the adopted support is adjustable, and the upper truss and the lower truss are detachable and convenient to transport and store. Pipeline elevation controlling means simple structure can effectively ensure the effective length of pipeline at straight line section department to reuse.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a pipeline elevation control device provided according to an embodiment of the present invention;
FIG. 2 is an axial side view of a pipe position restricting plate in the pipe level control apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a pipe level control apparatus provided in accordance with an embodiment of the present invention;
FIG. 4 is a diagram of the positional relationship between a sheave and a pipe provided in accordance with an embodiment of the present invention;
FIG. 5 is a diagram illustrating a position relationship between an elastic protection strip and a pipe according to an embodiment of the present invention;
FIG. 6 is a schematic view of an installation between an upper truss and a lower truss provided in accordance with an embodiment of the present invention;
fig. 7 is a construction process diagram of a pipeline elevation control method according to an embodiment of the invention.
The method comprises the following steps of 1-a pipeline, 2-a pipeline limiting plate, 3-a supporting frame, 4-a protective structure, 5-a bearing plate, 6-a counterweight, 7-a sleeper, 8-a straight section and 9-an oblique section;
21-elastic protection strip, 22-pulley, 31-lower truss, 32-bolt and 33-upper truss.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to fig. 1 to 7. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale.
In a first aspect, as shown in fig. 1, there is provided a pipe level control apparatus comprising: the pipeline limiting plate 2 is covered on the pipeline 1 and used for limiting the dragging and squeezing of the pipeline 1; the pipeline 1 can move along the axial direction of the pipeline 1 in the pipeline limiting plate 2; the lower end of the supporting frame 3 is connected to the pipeline limiting plate 2, and the upper end of the supporting frame 3 is fixed on the ground;
preferably, the pipeline elevation control device of this application still includes counterweight 6, counterweight 6 is used for setting up the upper end of support frame 3 is used for passing through support frame 3 and pipeline limiting plate 2 is right the radial spacing of pipeline 1.
In the present embodiment, as shown in fig. 2, the pipe restriction plate 2 includes: the radial section is semicircular, the two ends of the cover plate are turned over outwards and are in smooth transition with the cover plate, and the cover plate is provided with a mounting hole. The semicircular cover plate is used for covering the pipeline 1, and as will be understood by those skilled in the art, the radial section of the pipeline 1 is circular, the semicircular cover plate can be fittingly covered on the pipeline 1, and the radius of the cover plate is larger than 4-10 cm of the radius of the pipeline 1. The outward flanges arranged at the two ends of the cover plate facilitate the axial movement of the pipeline 1 at the lower side of the cover plate, and prevent the pipeline 1 from colliding with the cover plate to damage the pipeline 1.
As shown in fig. 1 and 5, the elastic protection strips 21 are connected to the inner wall surface of the cover plate through the mounting holes, and are used for protecting the cover plate and the pipeline 1, the elastic protection strips 21 may be made of plastic with good elastic deformation, the adjacent elastic protection strips 21 are spaced at the same distance, and each elastic protection strip 21 is fixed to the inner wall surface of the cover plate at regular intervals by screws. A groove can be formed in the cover plate in the axial direction, and the elastic protection strip 21 is fixed in the groove, so that the elastic protection strip can be installed. The pipeline elevation controlling means of this application is used for the cover to establish on the pipeline 1, and warp weight is applyed to pipeline limiting plate 2 to 6 counterweight to the realization is spacing to the radial direction of pipeline 1, sets up the quality of assurance pipeline that elasticity protecting strip 21 can be fine reduces unnecessary scraping damage. And a pulley 22 slidably attached to an inner wall surface of the cover plate through the mounting hole, for guiding the pipe 1 when the cover plate slides in an axial direction of the pipe 1. As shown in fig. 4, the pulley 22 is fixedly mounted on the cover plate via a shaft, and the pulley 22 can reduce friction with the inner wall surface of the cover plate when the pipe 1 moves axially.
In this embodiment, be provided with on the outer wall of pipeline limiting plate 2 and add the rib, it is a plurality of add the crisscross setting each other of rib. Because the mounting hole has been seted up on the apron, the rib that adds that sets up can guarantee the intensity of apron.
In this embodiment, the support frame 3 includes: the lower end of the lower truss 31 can be connected to the outer wall of the pipeline limiting plate 2 in a welding mode; and the lower end of the upper truss 33 is connected with the upper end of the lower truss 31, the interval distance between the lower end surface of the upper truss 33 and the upper end surface of the lower truss 31 is adjustable, and the upper truss 33 is provided with a counterweight 6. The weight member 6 can be directly seated on the upper end of the upper truss 33, so that the weight of the weight member 6 on the pipeline limiting plate 2 is formed. In the present invention, as shown in fig. 1, the weight member 6 may be an excavator or various vehicles, which facilitates the movement of the weight member 6.
In this embodiment, the upper truss 33 and the lower truss 31 are connected by bolts 32, so that the distance between the lower end surface of the upper truss and the upper end surface of the lower truss can be adjusted. The lower end of the upper truss 33 is provided with a first threaded hole group, and the first threaded hole group comprises a plurality of first threaded holes distributed towards the upper end of the upper truss 33.
A second threaded hole group is formed in the lower truss 31, and the second threaded hole group comprises a plurality of second threaded holes distributed towards the lower end of the lower truss 31.
As shown in fig. 6, the upper truss 33 and the lower truss 31 are connected by the bolt 32 to different first and second threaded holes for movable adjustment of the support of the upper truss 33 and the lower truss 31. It can be understood that the height of the support frame 3 formed by the upper truss 33 and the lower truss 31 can be properly adjusted through different threaded holes at the connection part of the upper truss 33 and the lower truss 31, so as to realize the control of the height of the pipeline 1 formed by the support frame 3 and the pipeline limiting plate 2.
In an optional embodiment, the support frame 3 further includes a standard-section truss, and the standard-section truss is used for being installed between the upper truss 33 and the lower truss 31, and is used for increasing the height (depth) of the support frame 3 so as to meet the requirement that the foundation pit is deeper, and the support frame 3 cannot reach the top standard height of the pipeline 1 in the foundation pit.
In this embodiment, the upper end of the upper truss 33 is provided with a bearing plate 5, and the upper truss is fixed on the ground through the bearing plate, or the bearing plate 5 is used for supporting the counterweight 6. The load bearing plate 5 is provided for easy travel of the vehicle onto the load bearing plate 5 when the vehicle is acting as a weight 6.
In an alternative embodiment, the upper end of the upper truss 33 near the ground is detachably connected with a support through a bolt assembly, a sleeper is placed between the support and the ground, the bearing plate 6 is placed on the support, and the support is fixed on the ground to prevent the support from sliding and displacing, so that the pipeline limiting plate 2 is prevented from shifting, and the pipeline 1 is prevented from being changed in position and damaged in quality.
In a second aspect of the present invention, there is provided a method for controlling a pipeline elevation, in which the above-mentioned pipeline elevation control device is applied, the method comprising the following steps:
step one, acquiring construction data and at least two construction well positions (as shown in figure 7);
secondly, excavating a foundation pit at the position of the construction well site, and arranging a protective structure 4 in the foundation pit;
and step three, drilling and cleaning slurry. The Xiangjiang dragging pipe construction machine is arranged at the upstream, and is used for conducting guide drilling, reverse-pulling hole expansion and hole forming, and cleaning slurry in a foundation pit in the back dragging process.
Hoisting the two pipeline elevation control devices into the two construction well positions respectively, adjusting the elevation of the pipeline elevation control devices, and positioning and fixing the pipeline elevation control devices;
and fifthly, carrying out dragging construction on the pipeline 1.
In this embodiment, in the first step, the construction data includes a construction length, a topline height, and a ground surface height of the pipeline 1; when the topmark height is that pipeline 1 lays in the foundation ditch, pipeline 1's the highest position department in the radial direction is its topmark height, and the earth's surface height is the height of the horizon of position department, and the earth's surface height uses sea level height as the benchmark.
And determining the position of the construction well position according to the pipeline installation route, wherein the construction well position is arranged at the joint of the deflecting section and the straight section of the pipeline 1. In this embodiment, the pipeline 1 has a straight section and a deflecting section for a construction line, and the pipeline 1 is installed in the straight section by pulling the pipeline. The effective length of the pipeline 1 in the straight line section is kept, and the waste of the pipeline 1 caused by the bending of the pipeline 1 in the straight line section is avoided.
In this embodiment, protective structure 4 in step two is including setting up foundation ditch protection steel sheet all around, protection steel sheet with reserve clearance more than or equal to a meter between the pipeline elevation controlling means. The protection steel sheet that sets up is used for avoiding foundation ditch collapse all around, and the reservation clearance of every side is the construction of being convenient for drilling operation and carrying out elevation control to pipeline 1.
In this embodiment, in step four, according to the top mark height adjustment of pipeline 1 the length of support frame 3 has confirmed earlier the top mark height of pipeline 1 reserves pipeline 1 with 4 ~ 10 centimetres distance between 2 internal face of pipeline limiting plate avoids making pipeline limiting plate 2 descend more under the sudden action of counterweight 6, can't carry out the dilatory operation to pipeline 1.
Then will pipeline elevation control device hoists arrive in the foundation ditch sleeper 7 is laid between bearing plate 5 and the ground, makes 2 adaptations of pipeline limiting plate arrive the elevation position of pipeline 1, and set up on the bearing plate 5 counterweight 6 fixes a position fixedly. The height of the support frame 3 can be adjusted by the sleeper, and the sleeper can also play a role in bearing the weight 6.
And finally, dragging the pipeline 1, and after the pipeline 1 is dragged, hoisting the pipeline elevation control device to be conveyed to the next construction section for construction.
Pipeline elevation controlling means can effectively avoid scraping of pipeline 1 and apron through the elasticity protection strip 21 and the pulley 22 that increase, ensures the quality of pipeline 1, and the turn-ups at apron both ends and pulley 22 have the effect of reinforcing direction, are favorable to the dilatory of pipeline 1, effectively avoid damage such as the buckling of pipeline 1. The height of the adopted support frame 3 is adjustable, and the upper truss 33 and the lower truss 31 are detachable, so that the transportation and the storage are convenient. Pipeline elevation controlling means simple structure can effectively ensure the effective length of pipeline 1 in straightway 8 department to reuse.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the scope of the invention.
Claims (8)
1. A pipe level control apparatus, comprising:
the pipeline limiting plate is covered on an underground dragging pipeline and used for limiting the dragging track of the pipeline;
the lower end of the supporting frame is connected to the pipeline limiting plate, and the upper end of the supporting frame is fixed on the ground;
wherein, pipeline limiting plate includes:
the cover plate is semicircular in radial section, two ends of the cover plate are turned over outwards and are in smooth transition with the cover plate, and the cover plate is provided with a mounting hole;
the elastic protection strip is connected to the inner wall surface of the cover plate through the mounting hole and used for protecting the cover plate and the pipeline;
and the pulley is connected to the inner wall surface of the cover plate in a sliding way through the mounting hole and used for guiding the pipeline when the cover plate slides along the axial direction of the cover plate.
2. The pipeline elevation control device of claim 1, wherein the outer wall of the pipeline limiting plate is provided with a plurality of ribs, and the plurality of ribs are arranged in a staggered manner.
3. The pipe level control apparatus of claim 1, wherein the support bracket comprises:
the lower end of the lower truss is connected to the outer wall of the pipeline limiting plate;
the lower end of the upper truss is connected with the upper end of the lower truss, the interval distance between the lower end face of the upper truss and the upper end face of the lower truss is adjustable, and a counterweight is arranged at the upper end of the upper truss.
4. The pipe level control device of claim 3, wherein the upper truss and the lower truss are connected by bolts, so that the spacing distance between the lower end surface of the upper truss and the upper end surface of the lower truss can be adjusted;
the lower end of the upper truss is provided with a first threaded hole group, and the first threaded hole group comprises a plurality of first threaded holes distributed towards the upper end of the upper truss;
the upper end of the lower truss is provided with a second threaded hole group, and the second threaded hole group comprises a plurality of second threaded holes distributed towards the lower end of the lower truss;
the upper truss and the lower truss are connected with different first threaded holes and second threaded holes through the bolts and are used for movably adjusting the upper truss and the lower truss support.
5. The pipe level control device of claim 4, wherein a bearing plate is disposed at an upper end of the upper truss, and the upper truss is fixed on the ground through the bearing plate.
6. The pipeline elevation control method is applied to the pipeline elevation control device according to any one of claims 1 to 5, and is characterized by comprising the following steps of:
the method comprises the following steps of firstly, acquiring construction data and at least two construction well positions, wherein the construction data comprises the construction length, the top mark height and the ground surface height of a pipeline;
determining the position of the construction well position according to the pipeline installation route, wherein the construction well position is arranged at the joint of the deflecting section and the straight section of the pipeline;
secondly, excavating a foundation pit at the position of the construction well site, and arranging a protective structure in the foundation pit;
step three, drilling and cleaning slurry;
hoisting the two pipeline elevation control devices into the two construction well positions respectively, adjusting the elevation of the pipeline elevation control devices, and positioning and fixing the pipeline elevation control devices;
and fifthly, carrying out dragging construction on the pipeline.
7. The pipeline elevation control method according to claim 6, wherein the protective structure in the second step comprises protective steel plates arranged around the foundation pit, and a reserved gap between each protective steel plate and the pipeline elevation control device is larger than or equal to one meter.
8. The pipe level control method of claim 7, wherein in the fourth step, the length of the support frame is adjusted according to the height of the top mark of the pipe;
will pipeline elevation controlling means hoists arrive in the foundation ditch, lay the sleeper between bearing plate and ground, make pipeline limiting plate adaptation arrives the elevation position of pipeline, and the bearing plate sets up the counterweight, fixes a position fixedly.
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| CN201910759227.7A CN110657280B (en) | 2019-08-16 | 2019-08-16 | Pipeline elevation control device and method |
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| CN201910759227.7A CN110657280B (en) | 2019-08-16 | 2019-08-16 | Pipeline elevation control device and method |
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| CN111994800B (en) * | 2020-08-06 | 2022-08-09 | 河南省同信电力工程有限公司 | Gantry crane with replaceable rails |
| CN115218033A (en) * | 2022-05-26 | 2022-10-21 | 中国五冶集团有限公司 | Large-diameter pipeline installation device and installation method |
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| SU1624228A1 (en) * | 1987-04-01 | 1991-01-30 | Ю.В.Харитонов и В.М.Волков | Device for seating pipeline into watered ground |
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| CN103851257A (en) * | 2014-03-18 | 2014-06-11 | 国家电网公司 | Paired cable duct bank laying-based support pipe construction process |
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