CN113819303A - Pipeline tensile strength enhancing device and using method thereof - Google Patents
Pipeline tensile strength enhancing device and using method thereof Download PDFInfo
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- CN113819303A CN113819303A CN202111165195.1A CN202111165195A CN113819303A CN 113819303 A CN113819303 A CN 113819303A CN 202111165195 A CN202111165195 A CN 202111165195A CN 113819303 A CN113819303 A CN 113819303A
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- wire rope
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a pipeline tensile strength enhancement device and a use method thereof, wherein the pipeline tensile strength enhancement device comprises a plurality of resistance increasing units, fasteners and steel wire ropes; the resistance increasing units are sleeved on the outer circumference of the pipeline to be dragged back at intervals; the steel wire ropes are symmetrically arranged on two sides of the pipeline to be towed back and are arranged along the axis of the pipeline to be towed back; the fastener is sleeved on the outer side of the pipeline to be towed at intervals and used for fastening the steel wire rope on the outer side of the pipeline to be towed so as to enable the steel wire rope to be in close contact with the surface of the resistance increasing unit; the front end of the pipeline to be dragged back is provided with a pipeline dragging head, the front end of the steel wire rope is fixed with the pipeline dragging head, and the tail end of the steel wire rope is fixed with the tail end of the pipeline to be dragged back; the pipeline is directly pulled to be converted into the steel wire rope, the friction force between the steel wire rope and the resistance increasing unit is applied to the pipeline again, the pipeline is pulled back under the combined action of the pulling force and the friction force, the pulling force applied to the pipeline is reduced under the condition that the pulling force applied by a drilling machine is not changed, and the pipeline to be pulled back is prevented from being pulled apart.
Description
Technical Field
The invention belongs to the technical field of trenchless engineering construction, and particularly relates to a pipeline tensile strength enhancing device and a using method thereof.
Background
With the improvement of the urban management level, higher requirements are put forward on the influence on urban traffic and urban appearance in municipal engineering; at present, the horizontal directional drilling technology is widely applied to the field of municipal engineering as a non-excavation technology; the existing PE pipeline is preferentially adopted in aspects of municipal sewage pipelines and the like due to excellent corrosion resistance, but the tensile strength of the existing PE pipeline is far inferior to that of a steel pipe, and the joint of a back-dragging head and the pipeline has the risk of breaking in the back-dragging process of the directional drilling pipeline, so that the application of the horizontal directional drilling technology in the large-dragging-force municipal PE pipeline engineering is limited.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a pipeline tensile strength enhancing device and a using method thereof, and aims to solve the technical problem that the pulling risk exists at the joint of a back-dragging head and a pipeline in the back-dragging process of the existing directional pipeline.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a tensile reinforcement device for a pipeline, which comprises a plurality of resistance increasing units, fasteners and steel wire ropes; the resistance increasing units are sleeved on the outer circumference of the pipeline to be dragged back at intervals; the steel wire ropes are symmetrically arranged on two sides of the pipeline to be towed back and are arranged along the axis of the pipeline to be towed back;
the fastener is sleeved on the outer side of the pipeline to be towed at intervals and used for fastening the steel wire rope on the outer side of the pipeline to be towed so as to enable the steel wire rope to be in close contact with the surface of the resistance increasing unit; the front end of the pipeline to be dragged back is provided with a pipeline dragging head, the front end of the steel wire rope is fixed with the pipeline dragging head, and the tail end of the steel wire rope is fixed with the tail end of the pipeline to be dragged back.
Further, the device also comprises a plugging plate which is fixedly arranged at the tail end of the pipeline to be dragged back; the plugging plate is provided with a fixing groove, and the tail end of the steel wire rope is fixed in the fixing groove of the plugging plate.
Furthermore, the reinforcing unit comprises an annular U-shaped groove and a friction ring; the annular U-shaped groove is fixedly sleeved on the outer circumference of the pipeline to be dragged back; the inner side of the annular U-shaped groove is tightly contacted with the outer side of the pipeline to be dragged back, and a U-shaped groove structure is arranged on the outer side of the annular U-shaped groove; the friction ring is embedded in the U-shaped groove structure, and the surface of the friction ring is in close contact with the steel wire rope.
Furthermore, the groove depth of the U-shaped groove structure is 1-2mm, and the thickness of the friction ring is 1-2 cm.
Further, the pipeline dragging head comprises a rotary joint and a dragging head body; one end of the dragging head body is fixed with the front end of the pipeline to be dragged back, the other end of the dragging head body is connected with a rotary joint, and the rotary joint is used for being connected with traction equipment; the front end of the steel wire rope is fixedly connected with the rotary joint.
Furthermore, the tensile strength of the steel wire rope is greater than the maximum tensile force which can be borne between the pipeline to be dragged back and the pipeline dragging head.
Further, the fixed groove is a linear groove, the center of the linear groove is superposed with the circle center of the plugging plate and is arranged along the diameter of the plugging plate; the width of the linear groove is larger than twice the diameter of the steel wire rope.
Further, the fastener adopts a hose clamp.
Furthermore, an electric heating element is embedded in the U-shaped groove structure of the annular U-shaped groove, and the electric heating element is connected with a power supply and used for electrically fusing, welding and fixing the annular U-shaped groove and the outer surface of the pipeline to be dragged back.
The invention also provides a use method of the pipeline tensile reinforcement device, which is used for the back dragging process of the pipeline for the horizontal directional drilling and comprises the following steps:
the assembling process comprises the following steps:
the steel wire ropes are symmetrically arranged at two sides of the pipeline to be dragged back, one end of each steel wire rope is fixed with the pipeline dragging head, and the other end of each steel wire rope is pulled to the tail end of the pipeline to be dragged back and fixed through the surface of the resistance increasing unit from the front end of the pipeline to be dragged back along the axis of the pipeline to be dragged back;
fastening the steel wire rope on the outer side of the pipeline to be towed back by using a fastening piece, and applying pressure towards the center of the pipeline to be towed back to the steel wire rope;
and (3) back dragging process:
and applying a pulling force to the pipeline dragging head to enable the pipeline to be dragged back along the preset path until the construction is finished.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a pipeline tensile strength enhancing device and a using method thereof.A resistance increasing unit is arranged at the outer side of a pipeline to be towed back at intervals, steel wire ropes are symmetrically arranged at two sides of the pipeline to be towed back, and the steel wire ropes are fastened by fasteners and apply pressure to ensure that the steel wire ropes are tightly contacted with the resistance increasing unit; the pipeline is directly pulled to be converted into the steel wire rope to be pulled, the friction force between the steel wire rope and the resistance increasing unit is applied to the pipeline again, the pipeline is pulled back under the combined action of the pulling force and the friction force, the pulling force applied to the pipeline is reduced under the condition that the pulling force applied by a drilling machine is not changed, the pipeline to be pulled back is prevented from being pulled apart, and the construction efficiency of directional pipeline pulling back and the application range of the horizontal directional drilling technology are improved.
Furthermore, the end of the pipeline to be dragged back is provided with the plugging plate, the steel wire rope is fixed by the fixing groove in the plugging plate, a fixing space is provided for the steel wire rope, and reliable connection between the steel wire rope and the pipeline to be dragged back is ensured.
Furthermore, through on waiting to draw the outside circumference of pipeline back, cyclic annular U type groove is established to fixed cover to inlay the friction circle in the U type groove structure in cyclic annular U type groove, utilize cyclic annular U type groove to fix the friction circle, the friction that the friction circle can effectively strengthen wire rope and remove the required frictional force of overcoming, and then increase the pipeline pulling force that wire rope can share.
Furthermore, the steel wire rope is connected with the rotary joint, so that the pipeline and the steel wire rope can share the tensile force of the drilling machine, and the tensile force borne by the pipeline is reduced by sharing the tensile force of the drilling machine by the steel wire rope.
Furthermore, the tensile strength of the steel wire rope is greater than the maximum tensile force which can be borne between the pipeline to be dragged back and the pipeline dragging head, so that the pipeline dragging process is ensured, the steel wire rope is not damaged, and the function of reducing the pipeline tensile force is conveniently and fully exerted.
Further, the fixed groove of the plugging plate is arranged to be a straight line groove, the tail ends of the steel wire ropes on two sides of the pipeline are connected through a steel wire rope clamp, the width of the straight line groove is arranged to be larger than the diameter of the two times of the steel wire rope, and the tail end connection position of the steel wire rope is embedded in the fixed groove.
Furthermore, the annular U-shaped groove and the outer surface of the pipeline to be dragged back can be welded and fixed in an electric melting mode through the electric heating element arranged in the annular U-shaped groove, operation is convenient, and stability is good.
Drawings
FIG. 1 is a schematic view of the overall structure of a tensile reinforcement device for a pipe according to an embodiment;
FIG. 2 is a schematic plan view of the tensile reinforcement device for a pipe according to an embodiment;
FIG. 3 is a cross-sectional view of a tensile reinforcement device for a pipe along a cross-section of the pipe according to an embodiment;
fig. 4 is a schematic diagram of a structure of a plugging plate in the tensile reinforcement device for a pipeline according to the embodiment.
The device comprises a resistance increasing unit 1, a fastener 2, a steel wire rope 3, a blocking plate 4, a pipeline 5 to be dragged back and a pipeline dragging head 6, wherein the blocking plate is arranged on the pipeline; 11 annular U-shaped grooves and 12 friction rings; the rotary joint 61, 62 pulls the head body.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a tensile reinforcement device for a pipeline, which comprises a plurality of resistance increasing units 1, fasteners 2, steel wire ropes 3 and plugging plates 4; the resistance increasing units 1 are sleeved on the outer circumference of the pipeline 5 to be dragged back at intervals, and the steel wire ropes 3 are symmetrically arranged on two sides of the pipeline 5 to be dragged back and are arranged along the axis of the pipeline 5 to be dragged back; the fastening piece 2 is sleeved on the outer side of the pipe 5 to be dragged back at intervals, is used for fastening the steel wire rope 3 on the outer side of the pipe 5 to be dragged back, and can apply pressure towards the center of the pipe 5 to be dragged back on the steel wire rope 3 so as to enable the steel wire rope 3 to be in close contact with the surface of the resistance increasing unit 1; preferably, the fastening piece 2 adopts a hose clamp, and the mounting position of the fastening piece 2 corresponds to the mounting position of the resistance increasing unit 1 one by one and is positioned outside the resistance increasing unit 1.
The front end of the pipeline 5 to be dragged back is provided with a pipeline dragging head 6, the pipeline dragging head 6 is used for being connected with a dragging device, and pulling force is applied to the pipeline 5 to be dragged back, so that the pipeline 5 to be dragged back is dragged back to a preset position according to a preset path; the plugging plate 4 is fixedly arranged at the tail end of the planker 5 to be returned, and a fixing groove is formed in the plugging plate 4; the front end of the steel wire rope 3 is fixed with the pipeline dragging head 6, and the tail end of the steel wire rope 3 is fixed in a fixing groove of the plugging plate 4; in the invention, the fixed groove on the plugging plate 4 is a linear groove, the center of the linear groove is superposed with the circle center of the plugging plate 4 and is arranged along the diameter of the plugging plate 4; the width of the linear groove is larger than twice of the diameter of the steel wire rope; according to the invention, the end of the pipeline to be towed is provided with the plugging plate, and the steel wire rope is fixed by using the fixing groove on the plugging plate, so that a fixing space is provided for the steel wire rope, and the reliable connection between the steel wire rope and the pipeline to be towed is ensured; wherein, set up the fixed recess of shutoff board into sharp recess, the wire rope end of pipeline both sides is connected through the wire rope clamp, sets up the width of sharp recess into being greater than twice wire rope diameter, and the wire rope end-to-end connection department of being convenient for inlays fixedly in fixed recess department.
In the invention, the enhancement unit 1 comprises an annular U-shaped groove 11 and a friction ring 12; the annular U-shaped groove 11 is fixedly sleeved on the outer circumference of the pipeline 5 to be dragged back; the inner side of the annular U-shaped groove 11 is tightly contacted with the outer side of the pipeline 5 to be dragged back, and a U-shaped groove structure is arranged on the outer side of the annular U-shaped groove 11; the friction ring 12 is embedded in the U-shaped groove structure, and the surface of the friction ring 12 is tightly contacted with the steel wire rope 3; an electric heating element is embedded in a U-shaped groove structure of the annular U-shaped groove 11 and is connected with a power supply and used for fixing the annular U-shaped groove 11 and the outer surface of the pipeline 5 to be dragged back in an electric melting and welding manner; the friction ring is fixed by the annular U-shaped groove, so that the friction force required to be overcome by the movement of the steel wire rope can be effectively enhanced by the friction ring, and the pipeline tension force shared by the steel wire rope can be further increased; through set up electric heating element in cyclic annular U type groove, can wait to draw the surface electric fusion welded fastening of pipeline with cyclic annular U type groove, convenient operation, the steadiness is good.
The pipeline dragging head 6 comprises a rotary joint 61 and a dragging head body 62; one end of the dragging head body 62 is fixed with the front end of the pipeline 5 to be dragged back, the other end is connected with the rotary joint 61, and the rotary joint 61 is used for being connected with a traction device; the front end of the steel wire rope 3 is fixedly connected with the rotary joint 61; the steel wire rope is connected with the rotary joint, so that the pipeline and the steel wire rope share the tensile force of the drilling machine, and the tensile force borne by the pipeline is reduced by sharing the tensile force of the drilling machine by the steel wire rope; wherein, the tensile strength of the steel wire rope 3 is greater than the maximum tensile force which can be borne between the pipeline 5 to be dragged back and the dragging head body 62; the tensile strength of the steel wire rope is greater than the maximum tensile force which can be borne between the pipeline to be dragged back and the pipeline dragging head, so that the pipeline dragging process is ensured, the steel wire rope is not damaged, and the function of reducing the pipeline tensile force is conveniently and fully exerted.
The use method of the pipeline tensile strength enhancement device is used for the back dragging process of the pipeline for the horizontal directional drilling, and specifically comprises the following steps:
the assembling process comprises the following steps:
the steel wire ropes are symmetrically arranged at two sides of the pipeline to be dragged back, one end of each steel wire rope is fixed with the pipeline dragging head, and the other end of each steel wire rope is pulled to the tail end of the pipeline to be dragged back and fixed through the surface of the resistance increasing unit from the front end of the pipeline to be dragged back along the axis of the pipeline to be dragged back;
fastening the steel wire rope on the outer side of the pipeline to be towed back by using a fastening piece, and applying pressure towards the center of the pipeline to be towed back to the steel wire rope;
and (3) back dragging process:
and applying a pulling force to the pipeline dragging head to enable the pipeline to be dragged back along the preset path until the construction is finished.
The working principle is as follows:
according to the pipeline tensile strength enhancing device, the front end of a steel wire rope is fixed on a rotary joint at the front end of a drag head body, and the tail end of the steel wire rope is pulled to the tail end of a pipeline through the surface of a resistance increasing unit and is fixed on a plugging plate; utilizing a steel wire rope to share partial pulling force required by back-dragging the pipeline to be back-dragged; meanwhile, in the back dragging process, friction force is generated between the steel wire rope and the friction ring of the resistance increasing unit, the generated friction force is applied to the pipeline to be dragged back by the annular U-shaped groove of the resistance increasing unit, so that the pipeline to be dragged back is dragged back under the combined action of the tension and the friction force, and under the condition that the tension applied by the traction equipment is not changed, the tension applied to the pipeline to be dragged back can be effectively reduced, and the pipeline is prevented from being pulled apart.
Examples
As shown in fig. 1-4, the present embodiment provides a tensile strength enhancement device for a pipeline, which includes a plurality of resistance increasing units 1, fasteners 2, steel cables 3, and plugging plates 4; the resistance increasing units 1 are sleeved on the outer circumference of the pipeline 5 to be dragged back at intervals, namely, the ring resistance increasing units 1 are arranged one by one at preset intervals along the axial direction of the pipeline 5 to be dragged back; the resistance increasing unit 1 comprises an annular U-shaped groove 11 and a friction ring 12; the annular U-shaped groove 11 is fixedly sleeved on the circumference of the outer side of the pipeline 5 to be dragged back, the inner side of the annular U-shaped groove 11 is tightly contacted with the outer side of the pipeline 5 to be dragged back, a U-shaped groove structure is arranged on the outer side of the annular U-shaped groove 11, and the friction ring 12 is embedded in the U-shaped groove structure; the groove depth of the U-shaped groove structure is 1-2mm, the thickness of the friction ring 12 is 1-2cm, an electric heating element is embedded in the U-shaped groove structure of the annular U-shaped groove 11 and is connected with a power supply and used for fixing the annular U-shaped groove 11 and the outer surface of the pipeline 5 to be dragged back in an electric melting and welding mode.
The steel wire ropes 3 are symmetrically arranged on two sides of the pipeline 5 to be towed back and are arranged along the axis of the pipeline 5 to be towed back; one end of the steel wire rope 3 is fixed on the pipeline dragging head 6, and the other end of the steel wire rope 3 is symmetrically arranged on two sides of the outer surface of the pipeline 5 to be dragged back and is pulled to the tail end of the pipeline 5 to be dragged back through the surface of the friction ring 12 of the resistance increasing unit 1; the tail end of the pipeline 5 to be dragged back is provided with a plugging plate 4, and the plugging plate 4 is provided with a fixed groove; connecting the tail end of the steel wire rope 3 and embedding the end into a fixed groove on the plugging plate 4; in this embodiment, the tensile strength of the steel wire rope 3 is greater than the maximum tensile force that can be borne by the pipe 5 to be towed back and the towing head.
In the embodiment, the fastening piece 2 adopts a throat hoop which is correspondingly arranged at the outer surface position of the ring resistance increasing unit 1; the throat hoop is adopted to fasten the steel wire rope 3 and the resistance increasing unit 1 on the pipeline 5, and pressure is applied to the steel wire rope 3; the plugging plate 4 is welded and fixed at the pipe orifice at the tail end of the pipeline, a linear groove is formed in the plugging plate 4, and the width of the linear groove is larger than the diameter of a steel wire rope twice.
The pipeline dragging head 6 comprises a rotary joint 61 and a dragging head body 62; one end of the dragging head body 62 is fixed with the front end of the pipeline 5 to be dragged back, the other end is connected with the rotary joint 61, and the rotary joint 61 is used for being connected with a traction device; the front end of the steel wire rope 3 is fixedly connected with the rotary joint 61.
The use method of the pipeline tensile reinforcement device in the embodiment comprises the following steps:
the steel wire ropes are symmetrically arranged at two sides of the pipeline to be dragged back, one end of each steel wire rope is fixed with the pipeline dragging head, and the other end of each steel wire rope is pulled to the tail end of the pipeline to be dragged back and fixed through the surface of the resistance increasing unit from the front end of the pipeline to be dragged back along the axis of the pipeline to be dragged back;
fastening the steel wire rope on the outer side of the pipeline to be towed back by using a fastening piece, and applying pressure towards the center of the pipeline to be towed back to the steel wire rope; and applying a pulling force to the pipeline dragging head to enable the pipeline to be dragged back along the preset path until the construction is finished.
According to the pipeline tensile force enhancing device, partial tensile force required by a pipeline to be pulled back is converted from that of the pipeline directly pulled into that of a steel wire rope, and the friction force between the steel wire rope and a friction ring of a resistance increasing unit is applied to the pipeline to be pulled back again, so that the pipeline to be pulled back is pulled back under the combined action of the tensile force and the friction force, and the tensile force borne by the pipeline is reduced under the condition that the tensile force exerted by a drilling machine is not changed; the pipeline tension-resistant device can reduce the tension borne by the pipeline under the condition that the tension applied by the drilling machine is not changed, so that the pipeline tension-resistant capability in the back dragging process is enhanced, and the pipeline is prevented from being broken by pulling.
The above-described embodiment is only one of the embodiments that can implement the technical solution of the present invention, and the scope of the present invention is not limited by the embodiment, but includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed.
Claims (10)
1. A pipeline tensile strength enhancement device is characterized by comprising a plurality of resistance-increasing units (1), fasteners (2) and steel wire ropes (3); the resistance increasing units (1) are sleeved on the outer circumference of the pipeline (5) to be dragged back at intervals; the steel wire ropes (3) are symmetrically arranged on two sides of the pipeline (5) to be towed back and are arranged along the axis of the pipeline (5) to be towed back;
the fastening pieces (2) are sleeved on the outer side of the pipeline (5) to be dragged back at intervals and used for fastening the steel wire rope (3) on the outer side of the pipeline (5) to be dragged back so that the steel wire rope (3) is in close contact with the surface of the resistance increasing unit (1); the front end of the pipeline (5) to be dragged back is provided with a pipeline dragging head (6), the front end of the steel wire rope (3) is fixed with the pipeline dragging head (6), and the tail end of the steel wire rope (3) is fixed with the tail end of the pipeline (5) to be dragged back.
2. The pipeline tensile reinforcement device according to claim 1, further comprising a plugging plate (4), wherein the plugging plate (4) is fixedly arranged at the tail end of the pipeline (5) to be towed; a fixing groove is formed in the plugging plate (4), and the tail end of the steel wire rope (3) is fixed in the fixing groove of the plugging plate (4).
3. A tensile reinforcement device for pipelines according to claim 1, wherein the reinforcement unit (1) comprises an annular U-shaped groove (11) and a friction ring (12); the annular U-shaped groove (11) is fixedly sleeved on the outer circumference of the pipeline (5) to be dragged back; the inner side of the annular U-shaped groove (11) is tightly contacted with the outer side of the pipeline (5) to be dragged back, and a U-shaped groove structure is arranged on the outer side of the annular U-shaped groove (11); the friction ring (12) is embedded in the U-shaped groove structure, and the surface of the friction ring (12) is tightly contacted with the steel wire rope (3).
4. A tensile reinforcement means for pipes according to claim 3, wherein the U-shaped groove structure has a groove depth of 1-2mm and the friction ring (12) has a thickness of 1-2 cm.
5. A pipeline tensile reinforcement device according to claim 1, wherein the pipeline drag head (6) comprises a rotary joint (61) and a drag head body (62); one end of the dragging head body (62) is fixed with the front end of the pipeline (5) to be dragged back, the other end of the dragging head body is connected with the rotary joint (61), and the rotary joint (61) is used for being connected with a traction device; the front end of the steel wire rope (3) is fixedly connected with the rotary joint (61).
6. A pipeline tensile reinforcement device according to claim 1, characterized in that the tensile strength of the steel wire rope (3) is greater than the maximum tensile force that can be borne between the pipeline (5) to be pulled back and the pipeline pulling head (6).
7. A tensile reinforcement device for pipelines according to claim 2, wherein the fixing groove is a straight groove, the center of the straight groove coincides with the center of the circle of the plugging plate (4) and is arranged along the diameter of the plugging plate (4); the width of the linear groove is larger than twice the diameter of the steel wire rope.
8. A tensile reinforcement means for pipes according to claim 1, characterised in that the fastening means (2) is a hose clamp.
9. The pipeline tensile enhancement device according to claim 3, wherein an electric heating element is embedded in the U-shaped groove structure of the annular U-shaped groove (11), and the electric heating element is connected with a power supply and used for fixing the annular U-shaped groove (11) and the outer surface of the pipeline (5) to be dragged back in an electric melting and welding manner.
10. The use method of the pipeline tensile reinforcement device according to any one of claims 1 to 9, wherein the back dragging process of the pipeline for horizontal directional drilling comprises the following steps:
the assembling process comprises the following steps:
the steel wire ropes are symmetrically arranged at two sides of the pipeline to be dragged back, one end of each steel wire rope is fixed with the pipeline dragging head, and the other end of each steel wire rope is pulled to the tail end of the pipeline to be dragged back and fixed through the surface of the resistance increasing unit from the front end of the pipeline to be dragged back along the axis of the pipeline to be dragged back;
fastening the steel wire rope on the outer side of the pipeline to be towed back by using a fastening piece, and applying pressure towards the center of the pipeline to be towed back to the steel wire rope;
and (3) back dragging process:
and applying a pulling force to the pipeline dragging head to enable the pipeline to be dragged back along the preset path until the construction is finished.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115288609A (en) * | 2022-07-28 | 2022-11-04 | 河南盛邦环境工程有限公司 | Construction method of landfill body horizontal well and perforated pipe connecting device |
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