CN112944034B - Method for repairing non-excavation pipeline with short pipe lining - Google Patents
Method for repairing non-excavation pipeline with short pipe lining Download PDFInfo
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- CN112944034B CN112944034B CN202110107098.0A CN202110107098A CN112944034B CN 112944034 B CN112944034 B CN 112944034B CN 202110107098 A CN202110107098 A CN 202110107098A CN 112944034 B CN112944034 B CN 112944034B
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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
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/18—Appliances for use in repairing pipes
Abstract
The invention discloses a method for repairing a short pipe lining non-excavation pipeline, which adopts two inspection wells of a pipeline to be repaired as repairing channels, high-density polyethylene HDPE pipes are put into one inspection well one by one, a connecting screw rod consisting of standard joint threaded pipe fittings is sleeved in the high-density polyethylene HDPE pipes, adjacent high-density polyethylene HDPE pipes are connected in a hydraulic collision mode to form a new HDPE pipe, and the other inspection well is utilized to sleeve the new HDPE pipe into the pipeline to be repaired in a hydraulic traction mode.
Description
Technical Field
The invention relates to the technical field of low pipeline repairing construction, in particular to a method for repairing a short pipe lining trenchless pipeline.
Background
As shown in the attached figure 8, the traveling direction of the short pipe is stressed in the traditional construction method, and the lining of the pipe joint is mainly completed by drawing the tail end traction cable; the construction method has the advantages that the guide pulley block is required to be installed in the well chamber, the number of installation devices is large, the stress requirements on the well chamber and the well mouth are high, the running time of pipelines to be repaired is long, the well chamber and the well mouth structure are aged and damaged, and on the basis, excessive force transmission devices are installed and certain damage is caused to the original well chamber; when the space of the well chamber is narrow, the operation is inconvenient. In the drawing process, the guide wheel bracket is easy to move, so that the advancing direction of the short pipe deviates, and the lining construction of the short pipe is slow.
Disclosure of Invention
The invention aims to provide a method for repairing a non-excavation pipeline with a short pipe lining, which has the advantages of great applicability, less equipment, simple operation and high work efficiency, and solves the problems in the background technology, thereby overcoming the defects in the prior art.
The invention adopts the following technical scheme to overcome the technical problems, and specifically comprises the following steps:
a method for repairing the non-excavated pipeline with short pipe lining includes such steps as putting high-density polyethylene (HDPE) pipes into one of two inspection wells, sleeving a connecting screw rod consisting of standard screwed pipe fittings in the HDPE pipe, hydraulically connecting the adjacent HDPE pipes to form a new HDPE pipe, and hydraulically drawing the new HDPE pipe into the pipeline to be repaired by another inspection well.
As a further scheme of the invention: the high density polyethylene HDPE pipe is a standard section short pipe, the connecting end of the high density polyethylene HDPE pipe of each standard section is set to be a primary-secondary inverted tenon structure, and a sealing ring is arranged at the primary-secondary inverted tenon structure, so that the connection of the adjacent high density polyethylene HDPE pipes is reliable and sealed.
As a further scheme of the invention: and a water plugging air bag is arranged at the front end of the pipeline to be repaired at the installation position of the high-density polyethylene HDPE pipe.
As a further scheme of the invention: the mode of realizing that high density polyethylene HDPE pipe hydraulic pressure hits to close and connects is after two adjacent high density polyethylene HDPE pipes align, it has the connecting screw rod that comprises standard festival screwed pipe spare to overlap in high density polyethylene HDPE pipe, all set up a plurality of draw-in grooves on standard festival screwed pipe spare, be provided with the top support at the preceding terminal surface of waiting to cooperate high density polyethylene HDPE pipe, set up the cardboard on the standard festival screwed pipe spare of top support front side, this cardboard embedding corresponds in the draw-in groove, and set up hydraulic cylinder one between top support and cardboard, through hydraulic power station one control hydraulic cylinder one above the inspection shaft, thereby promote the top support and wait to cooperate high density polyethylene HDPE pipe with the top support matched with, realize adjacent high density polyethylene HDPE pipe striking and connect, in hydraulic pressure hits to close the connection process, because there is the friction between high density polyethylene HDPE pipe and the pipeline of waiting to repair, therefore when waiting to cooperate high density polyethylene HDPE pipe and adjacent high density polyethylene HDPE pipe cooperation in hydraulic cylinder one promotion, because adjacent high density polyethylene HDPE pipe waits to restore the friction effect between the pipeline, can realize the butt joint HDPE pipe and can all not completely support the high density polyethylene HDPE pipe after the effect once more, can be good mutually.
As a further scheme of the invention: the top support is of a disc structure, a connecting hole is formed in the middle of the top support, and through holes are uniformly formed in the top support around the connecting hole, so that pressure relief or drainage is facilitated.
As a further scheme of the invention: the working surface of the top support is provided with an annular clamping strip which is convenient to be matched and connected with a corresponding high-density polyethylene HDPE pipe.
As a further scheme of the invention: the whole jacking is of a spherical structure, and a handle is arranged above the jacking.
As a further scheme of the invention: realize the mode that hydraulic pressure pulls high density polyethylene HDPE pipe removal simultaneously is provided with the support that the channel-section steel welding formed in another inspection shaft bottom, be provided with hydraulic cylinder two in the support outside, this connection lead screw passes support and hydraulic cylinder two in proper order, and the card has the cardboard on the connection lead screw of two rear sides of hydraulic cylinder, utilize two control hydraulic cylinder two of hydraulic power station that set up in the inspection shaft top, pulling connection lead screw moving as a whole, thereby utilize the top to hold in the palm and drive high density polyethylene HDPE pipe moving as a whole, realize HDPE pipe moving as a whole again when adjacent high density polyethylene HDPE pipe hits to close the connection with hydraulic pressure promptly.
As a further scheme of the invention: and when the distance of the whole connecting screw rod moving from the second hydraulic oil cylinder exceeds the length of the standard threaded pipe, the corresponding standard threaded pipe is unscrewed and the standard threaded pipe is moved into the inspection well at the front end again for butt joint of the connecting screw rod, so that the reciprocating utilization is realized.
A pipe stub lining trenchless pipeline repairing structure comprises a pipeline to be repaired, a second inspection well positioned at the front end of the pipeline to be repaired and a first inspection well positioned at the rear end of the pipeline to be repaired, wherein a water plugging air bag is arranged on the pipeline in front of the second inspection well, a jacking is arranged at the pipeline to be repaired of the second inspection well, a support formed by welding channel steel is arranged at the pipeline to be repaired of the first inspection well, a connecting screw rod is arranged between the jacking and the support and penetrates through the jacking and the support respectively, a first hydraulic oil cylinder is sleeved on the connecting screw rod at the second inspection well, and a clamping plate is clamped on the connecting screw rod at the front end of the first hydraulic oil cylinder, so that the first hydraulic oil cylinder is positioned between the clamping plate and the jacking and tightly propped against each other; a second hydraulic oil cylinder is sleeved on the connecting screw rod of the first inspection well, and a clamping plate is clamped on the connecting screw rod at the rear end of the second hydraulic oil cylinder, so that the second hydraulic oil cylinder is positioned between the clamping plate and the support and is tightly propped against each other; the hydraulic oil pipe I is connected with the external hydraulic power station I through a hydraulic oil pipe I, and the hydraulic oil pipe II is connected with the external hydraulic power station II through a hydraulic oil pipe II; a plurality of high-density polyethylene HDPE pipes are arranged on the connecting screw rod between the jacking and the support, and the adjacent high-density polyethylene HDPE pipes are connected, matched and sealed;
as a further scheme of the invention: the connecting screw rod is composed of a plurality of standard-section threaded pipes, the standard-section threaded pipes can be connected through threads, a plurality of clamping grooves are formed in the standard-section threaded pipes, and the clamping grooves are matched with the corresponding clamping plates;
as a further scheme of the invention: the whole clamping plate is of an L-shaped structure;
as a further scheme of the invention: in the jacking disc structure, the middle part of the jacking is provided with a connecting hole, and through holes are uniformly distributed on the jacking around the connecting hole so as to facilitate pressure relief or drainage; the working surface of the jacking support is provided with an annular clamping strip which is convenient for being matched and connected with a corresponding high-density polyethylene HDPE pipe; the whole jacking support is of a spherical structure, and a handle is arranged above the jacking support.
As a further scheme of the invention: the high-density polyethylene HDPE pipe is of a standard joint structure, the connecting end of the high-density polyethylene HDPE pipe of each standard joint is of a primary-secondary inverted tenon structure, and a sealing ring is arranged at the primary-secondary inverted tenon structure; and a guide inclined plane is arranged at the joint of the primary-secondary inverted tenon structure.
Compared with the prior art, the invention has the following advantages:
1) The hydraulic equipment consists of an independent hydraulic power station and a hydraulic cylinder, the hydraulic power station and the hydraulic cylinder are connected by a hydraulic pipe, the length of the hydraulic pipe is 8m, and the well depth requirements of the rain and sewage inspection well in various existing conditions can be met;
2) When the hydraulic equipment works, the hydraulic cylinder is only required to be placed in the inspection well for jacking construction, the hydraulic power station is only required to be placed beside the well head, the construction is not hindered, and a safe place is ensured;
3) The hydraulic cylinder directly exerts force on the lining short pipe and guides the lining short pipe by taking the pipeline to be repaired as a carrier, so that the complex procedures of installing a guide pulley, a traction steel wire and the like in the conventional traction type construction are reduced, and the power loss is reduced;
4) All short pipe pushing and pulling work can be completed only by operating in the original inspection well in the well section to be repaired.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the connection of a high density polyethylene HDPE pipe, a connecting screw rod, a jacking support, a hydraulic oil cylinder I and a hydraulic oil cylinder II;
FIG. 3 is a schematic view of the joining of adjacent HDPE pipes according to the present invention;
FIG. 4 is a schematic diagram of a standard pitch threaded pipe of the present invention;
FIG. 5 is a schematic view of the jacking structure of the present invention;
FIG. 6 is a rear view of FIG. 5;
FIG. 7 is a side view of FIG. 5;
fig. 8 is a schematic diagram of a prior art structure.
In the figure: 1-a pipeline to be repaired, 2-a second inspection well, 3-a first inspection well, 4-a water plugging air bag, 5-a jacking, 6-a support, 7-a connecting screw rod, 8-a standard section threaded pipe, 9-a clamping groove, 10-a clamping plate, 11-a first hydraulic oil cylinder, 12-a second hydraulic oil cylinder, 13-a first hydraulic oil pipe, 14-a first hydraulic power station, 15-a second hydraulic oil pipe, 16-a second hydraulic power station, 17-a connecting hole, 18-a through hole, 19-a high density polyethylene HDPE pipe, 20-a primary and secondary inverted tenon structure, 21-a sealing ring, 22-a guide inclined plane, 23-an expansion pipe head, 24-a handle, 25-an annular clamping strip, 26-a short pipe, 27-a traction rope and 28-a lining short pipe.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
In addition, an element described herein as being "secured to" or "disposed on" another element may be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "front," "back," and the like are for purposes of illustration only and do not denote a single embodiment.
Referring to fig. 1 to 7, in the embodiment of the invention, a method for repairing a pipe with a short pipe lining without excavating is provided, which uses two inspection wells of a pipe to be repaired as repairing channels, high density polyethylene HDPE pipes are put into one inspection well one by one, a connecting screw rod formed by standard threaded pipe fittings is sleeved in each high density polyethylene HDPE pipe, adjacent high density polyethylene HDPE pipes are connected in a hydraulic collision manner to form a new HDPE pipe, and the other inspection well is used for sleeving the new HDPE pipe into the pipe to be repaired simultaneously in a hydraulic traction manner.
The high-density polyethylene HDPE pipe is a standard joint short pipe, the connecting end of the high-density polyethylene HDPE pipe of each standard joint is arranged into a primary-secondary inverted tenon structure, and a sealing ring is arranged at the primary-secondary inverted tenon structure, so that the adjacent high-density polyethylene HDPE pipes are reliably connected and sealed; and a water plugging air bag is arranged at the front end of the pipeline to be repaired at the installation position of the high-density polyethylene HDPE pipe.
The mode of realizing that high density polyethylene HDPE pipe hydraulic pressure hits to close and connects is after two adjacent high density polyethylene HDPE pipes align, it has the connecting screw rod that comprises standard festival screwed pipe spare to overlap in high density polyethylene HDPE pipe, all set up a plurality of draw-in grooves on standard festival screwed pipe spare, be provided with the top support at the preceding terminal surface of waiting to cooperate high density polyethylene HDPE pipe, set up the cardboard on the standard festival screwed pipe spare of top support front side, this cardboard embedding corresponds in the draw-in groove, and set up hydraulic cylinder one between top support and cardboard, through hydraulic power station one control hydraulic cylinder one above the inspection shaft, thereby promote the top support and wait to cooperate high density polyethylene HDPE pipe with the top support matched with, realize adjacent high density polyethylene HDPE pipe striking and connect, in hydraulic pressure hits to close the connection process, because there is the friction between high density polyethylene HDPE pipe and the pipeline of waiting to repair, therefore when waiting to cooperate high density polyethylene HDPE pipe and adjacent high density polyethylene HDPE pipe cooperation in hydraulic cylinder one promotion, because adjacent high density polyethylene HDPE pipe waits to restore the friction effect between the pipeline, can realize the butt joint HDPE pipe and can all not completely support the high density polyethylene HDPE pipe after the effect once more, can be good mutually.
The jacking is of a disc structure, a connecting hole is formed in the middle of the jacking, and through holes are uniformly formed in the jacking around the connecting hole, so that pressure relief or drainage is facilitated; the working surface of the jacking support is provided with an annular clamping strip which is convenient for being matched and connected with a corresponding high-density polyethylene HDPE pipe; the whole jacking support is of a spherical structure, and a handle is arranged above the jacking support.
Meanwhile, the mode of hydraulically drawing the high-density polyethylene HDPE pipe to move is that a support formed by welding channel steel is arranged at the bottom of the other inspection well, a hydraulic oil cylinder II is arranged outside the support, the connecting screw rod sequentially penetrates through the support and the hydraulic oil cylinder II, a clamping plate is clamped on the connecting screw rod at the rear side of the hydraulic oil cylinder II, the hydraulic oil cylinder II is controlled by using a hydraulic power station II arranged above the inspection well, the connecting screw rod is pulled to move integrally, so that the high-density polyethylene HDPE pipe is driven to move integrally by using a jacking, namely, the HDPE pipe is integrally moved while the adjacent high-density polyethylene HDPE pipes are connected in a hydraulic collision manner; and when the distance of the whole connecting screw rod moving from the two hydraulic oil cylinders exceeds the length of the standard-section threaded pipe, the corresponding standard-section threaded pipe is unscrewed and the standard-section threaded pipe is moved into the inspection well at the front end again for butt joint of the connecting screw rod, so that the reciprocating utilization is realized.
The pipe lining trenchless pipe repairing structure formed according to the repairing method comprises a pipe 1 to be repaired, a second inspection well 2 and a first inspection well 3, wherein the second inspection well 2 is located at the front end of the pipe 1 to be repaired, the first inspection well 3 is located at the rear end of the pipe 1 to be repaired, a water plugging air bag 4 is arranged on the pipe in front of the second inspection well 2, a jacking 5 is arranged at the pipe 1 to be repaired of the second inspection well 2, a support 6 formed by welding channel steel is arranged at the pipe 1 to be repaired of the first inspection well 3, a connecting screw rod 7 is arranged between the jacking 5 and the support 6, the connecting screw rod 7 penetrates through the jacking 5 and the support 6 respectively, a first hydraulic oil cylinder 11 is sleeved on the connecting screw rod 7 at the position of the second inspection well 2, and a clamping plate 10 is clamped on the connecting screw rod 7 at the front end of the first hydraulic oil cylinder 11, so that the first hydraulic oil cylinder 11 is located between the clamping plate 10 and the jacking 5 and is tightly propped against each other; a hydraulic oil cylinder II 12 is sleeved on a connecting screw rod 7 of the inspection well I3, and a clamping plate 10 is clamped on the connecting screw rod 7 at the rear end of the hydraulic oil cylinder II 12, so that the hydraulic oil cylinder II 12 is positioned between the clamping plate 10 and the support 6 and is tightly propped against each other; the hydraulic oil cylinder I11 is connected with an external hydraulic power station I14 through a hydraulic oil pipe I13, and the hydraulic oil cylinder II 12 is connected with an external hydraulic power station II 16 through a hydraulic oil pipe II 15; a plurality of high density polyethylene HDPE pipes 19 are arranged on the connecting screw rod 7 between the jacking 5 and the support 6, and the adjacent high density polyethylene HDPE pipes 19 are connected, matched and sealed;
the connecting screw rod 7 is composed of a plurality of standard pitch threaded pipes 8, the standard pitch threaded pipes 8 can be connected through threads, a plurality of clamping grooves 9 are formed in the standard pitch threaded pipes 8, and the clamping grooves 9 are matched with corresponding clamping plates 10; the whole clamping plate 10 is of an L-shaped structure;
in the disc structure of the top support 5, the middle part of the top support 5 is provided with a connecting hole 17, and through holes 18 are uniformly distributed on the top support around the connecting hole 17 so as to facilitate pressure relief or drainage; the working surface of the top support 5 is provided with an annular clamping strip 25 which is convenient for matching and connecting with a corresponding high-density polyethylene HDPE pipe 19; the whole jacking device 5 is of a spherical structure, and a handle 24 is arranged above the jacking device; the high-density polyethylene HDPE pipe 19 is of a standard joint structure, the connecting end of the high-density polyethylene HDPE pipe 19 of each standard joint is arranged into a primary-secondary inverted tenon structure 20, and a sealing ring 21 is arranged at the primary-secondary inverted tenon structure 20; a guiding inclined plane 22 is arranged at the joint of the primary-secondary inverted tenon structure 20.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (8)
1. A method for repairing a short pipe lining trenchless pipeline is characterized by comprising the following steps: the method adopts two inspection wells of the pipeline to be repaired as repair channels, high-density polyethylene HDPE pipes are put into one inspection well one by one, a connecting screw rod formed by standard-joint threaded pipe fittings is sleeved in each high-density polyethylene HDPE pipe, the adjacent high-density polyethylene HDPE pipes are connected in a hydraulic collision manner to form a new HDPE pipe, and the new HDPE pipe is sleeved into the pipeline to be repaired in a hydraulic traction manner by using the other inspection well;
the hydraulic collision connection mode of the high-density polyethylene HDPE pipes is that after two adjacent high-density polyethylene HDPE pipes are aligned, a connecting screw rod formed by standard joint threaded pipe fittings is sleeved in each high-density polyethylene HDPE pipe, a plurality of clamping grooves are formed in each standard joint threaded pipe fitting, a jacking is arranged on the front end face of each high-density polyethylene HDPE pipe to be matched, a clamping plate is arranged on each standard joint threaded pipe fitting on the front side of the jacking, the clamping plate is embedded into the corresponding clamping groove, a hydraulic cylinder I is arranged between the jacking and the clamping plate, and the hydraulic cylinder I is controlled by a hydraulic power station I above an inspection well, so that the jacking and the high-density polyethylene HDPE pipes to be matched with the jacking are pushed, and the adjacent high-density polyethylene HDPE pipes are in collision connection; realize the mode that hydraulic pressure pulls high density polyethylene HDPE pipe removal simultaneously is provided with the support that the channel-section steel welding formed in another inspection shaft bottom, be provided with hydraulic cylinder two in the support outside, this connection lead screw passes support and hydraulic cylinder two in proper order, and the card has the cardboard on the connection lead screw of two rear sides of hydraulic cylinder, utilize two control hydraulic cylinder two of hydraulic power station that set up in the inspection shaft top, pulling connection lead screw moving as a whole, thereby utilize the top to hold in the palm and drive high density polyethylene HDPE pipe moving as a whole, realize HDPE pipe moving as a whole again when adjacent high density polyethylene HDPE pipe hits to close the connection with hydraulic pressure promptly.
2. The method of repairing a spool lining trenchless duct of claim 1 wherein: the high density polyethylene HDPE pipe is a standard section short pipe, the connecting end of the high density polyethylene HDPE pipe of each standard section is set to be a primary-secondary inverted tenon structure, and a sealing ring is arranged at the primary-secondary inverted tenon structure, so that the connection of the adjacent high density polyethylene HDPE pipes is reliable and sealed.
3. The method of trenchless pipeline rehabilitation of spool lining as claimed in claim 1, wherein: and a water plugging air bag is arranged at the front end of the pipeline to be repaired at the installation position of the high-density polyethylene HDPE pipe.
4. The method of repairing a spool lining trenchless duct of claim 1 wherein: the top support is of a disc structure, the middle of the top support is provided with a connecting hole, and through holes are uniformly distributed on the top support around the connecting hole, so that pressure relief or drainage is facilitated.
5. The method of repairing a spool lining trenchless duct of claim 4 wherein: the working surface of the top support is provided with an annular clamping strip which is convenient to be matched and connected with a corresponding high-density polyethylene HDPE pipe.
6. The method of repairing a spool lining trenchless duct of claim 4 wherein: the whole jacking support is of a spherical structure, and a handle is arranged above the jacking support.
7. The method of repairing a spool lining trenchless duct of claim 1 wherein: and when the distance of the whole connecting screw rod moving from the second hydraulic oil cylinder exceeds the length of the standard threaded pipe, the corresponding standard threaded pipe is unscrewed and the standard threaded pipe is moved into the inspection well at the front end again for butt joint of the connecting screw rod, so that the reciprocating utilization is realized.
8. The repair structure of the pipe stub lining trenchless pipeline formed by the repair method according to claim 1, which comprises the pipeline (1) to be repaired, a second inspection well (2) arranged at the front end of the pipeline (1) to be repaired and a first inspection well (3) arranged at the rear end of the pipeline (1) to be repaired, wherein a water plugging air bag (4) is arranged on the pipeline in front of the second inspection well (2), and is characterized in that: a jacking support (5) is arranged at the position of a pipeline (1) to be repaired of the inspection well II (2), a support (6) formed by welding channel steel is arranged at the position of the pipeline (1) to be repaired of the inspection well I (3), a connecting screw rod (7) is arranged between the jacking support (5) and the support (6), the connecting screw rod (7) respectively penetrates through the jacking support (5) and the support (6), a hydraulic oil cylinder I (11) is sleeved on the connecting screw rod (7) at the position of the inspection well II (2), and a clamping plate (10) is clamped on the connecting screw rod (7) at the front end of the hydraulic oil cylinder I (11), so that the hydraulic oil cylinder I (11) is positioned between the clamping plate (10) and the jacking support (5) and is tightly propped against each other; a second hydraulic oil cylinder (12) is sleeved on a connecting screw rod (7) of the first inspection well (3), and a clamping plate (10) is clamped on the connecting screw rod (7) at the rear end of the second hydraulic oil cylinder (12), so that the second hydraulic oil cylinder (12) is positioned between the clamping plate (10) and the support (6) and is tightly propped against each other; the hydraulic power station I (14) is connected with the hydraulic oil cylinder I (11) through a hydraulic oil pipe I (13), and the hydraulic oil cylinder II (12) is connected with the hydraulic power station II (16) through a hydraulic oil pipe II (15); a plurality of high density polyethylene HDPE pipes (19) are arranged on the connecting screw rod (7) between the jacking (5) and the support (6), and the adjacent high density polyethylene HDPE pipes (19) are connected, matched and sealed;
the connecting screw rod (7) is composed of a plurality of standard-section threaded pipes (8), the standard-section threaded pipes (8) can be connected through threads, a plurality of clamping grooves (9) are formed in the standard-section threaded pipes (8), and the clamping grooves (9) are matched with corresponding clamping plates (10);
the whole clamping plate (10) is of an L-shaped structure;
in the disc structure of the top support (5), the middle part of the top support (5) is provided with a connecting hole (17), and through holes (18) are uniformly distributed on the top support around the connecting hole (17) to facilitate pressure relief or drainage; the working surface of the top support (5) is provided with an annular clamping strip (25) which is convenient for being matched and connected with a corresponding high-density polyethylene HDPE pipe (19); the whole jacking support (5) is of a spherical structure, and a handle (24) is arranged above the jacking support;
the high-density polyethylene HDPE pipe (19) is of a standard joint structure, the connecting end of the high-density polyethylene HDPE pipe (19) of each standard joint is arranged into a primary-secondary inverted tenon structure (20), and a sealing ring (21) is arranged at the primary-secondary inverted tenon structure (20); a guide inclined plane (22) is arranged at the joint of the primary-secondary inverted tenon structure (20).
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| EP2050919A2 (en) * | 2007-10-16 | 2009-04-22 | TERRA AG fuer Tiefbautechnik | Method and device to pull a pipeline comprised of short pipes into a boring channel with measurement of pulling power |
| CN102518907A (en) * | 2011-12-30 | 2012-06-27 | 北京创安亚非开挖工程技术有限公司 | Trenchless built-in sleeve pipeline repairing equipment and method |
| CN206754589U (en) * | 2017-03-28 | 2017-12-15 | 杨君锋 | Underground deformation pipe renovating system |
| CN109210315A (en) * | 2017-07-01 | 2019-01-15 | 健管（厦门）环境科技有限公司 | A kind of Non-excavation pipeline restoration device and renovation technique of short tube connection |
| CN108953759A (en) * | 2018-06-27 | 2018-12-07 | 广东管博管道技术科技有限公司 | Self-balancing is two-way to eat pipe replacement restorative procedure and device |
| CN108843888A (en) * | 2018-07-25 | 2018-11-20 | 广东科朗管道修复技术有限公司 | Pipeline is to drawing prosthetic device and its restorative procedure |
| CN208804392U (en) * | 2018-09-04 | 2019-04-30 | 李世秋 | A kind of novel system split tube method and repair underground piping |
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| CN112944034A (en) | 2021-06-11 |
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