CN114658948A - Water-stopping repair structure for high-buried-depth high-underground-water-level difficult-to-descend pipeline and repair method thereof - Google Patents
Water-stopping repair structure for high-buried-depth high-underground-water-level difficult-to-descend pipeline and repair method thereof Download PDFInfo
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- CN114658948A CN114658948A CN202210345404.9A CN202210345404A CN114658948A CN 114658948 A CN114658948 A CN 114658948A CN 202210345404 A CN202210345404 A CN 202210345404A CN 114658948 A CN114658948 A CN 114658948A
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- pipeline
- inspection well
- water
- pump
- plugging device
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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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/103—Means for stopping flow from or in pipes or hoses by temporarily freezing liquid sections in the pipe
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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
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1655—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section a pipe being formed inside the old pipe by winding strip-material
Abstract
The invention discloses a water stopping and repairing structure of a pipeline difficult to descend in a large buried depth and a high underground water level. The device comprises a diversion pump, a pipeline plugging device, a liquid nitrogen cooling device, a cooling hose, a diversion pipeline, a pipe making machine and a water pump; the diversion pump, the pipeline plugging device, the pipe making machine and the water pump are all arranged in the existing pipeline; the current pipeline is provided with an inspection well and communicated with the inspection well; the inspection well comprises a first inspection well, a second inspection well, a third inspection well and a fourth inspection well; the guide pump is positioned below the first inspection well; the water suction pump is positioned below the third inspection well; one end of the cooling hose is connected with the liquid nitrogen cooling device, and the other end of the cooling hose passes through the second inspection well and is positioned in a to-be-repaired area in the current pipeline; the pipe making machine is located in the area to be repaired. The invention can repair the drainage pipeline in a full water state, and has high efficiency and good repair effect. The invention also discloses a repairing method of the water stopping and repairing structure of the difficult-to-descend water pipeline with large burial depth and high underground water level.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a water stopping and repairing structure of a pipeline with large buried depth and high underground water level and difficult descent. The invention also relates to a repairing method of the water stopping and repairing structure of the large-burial-depth high-underground-water-level difficult-to-descend pipeline.
Background
Drainage pipelines are detected by adopting CCTV, QV and other technologies, trenchless restoration is carried out by adopting CIPP (clean in place) and the technologies need no water or low water level in the pipelines, the pipelines often encounter the conditions of large buried depth, high underground water level, or river-crossing pipelines and the like in projects, the flow is high, the infiltration amount of underground water is large, and accumulated water in the pipelines cannot be emptied after plugging, so that difficult pipeline sections are formed. The water outside the pipe section is seriously infiltrated and is difficult to be reduced (namely, the water cannot be drained after being pumped and drained by a water pump for a long time (12 hours), and even the liquid level in the pipeline is kept unchanged). The existing repair process needs no water operation or operation under the condition of a small amount of water, and the repair work can not be carried out under the full water state.
Therefore, it is necessary to develop a water stopping and repairing structure and method for a difficult-to-descend water pipeline with large burial depth and high underground water level.
Disclosure of Invention
The invention aims to provide a water-stopping repair structure for a pipeline with large burial depth and high underground water level and difficult descent, which can repair the drainage pipeline in a full water state, and has high efficiency and good repair effect; the problem of large buried depth, high water level pipeline restoration is solved.
The second purpose of the invention is to provide a repairing method of the water stopping and repairing structure of the difficult-to-descend water pipeline with large burial depth and high underground water level.
In order to achieve the first object of the present invention, the technical solution of the present invention is: the utility model provides a high groundwater level of big buried depth difficult precipitation pipeline stagnant water restoration structure which characterized in that: the device comprises a diversion pump, a pipeline plugging device, a liquid nitrogen cooling device, a cooling hose, a diversion pipeline, a pipe making machine and a water pump;
the diversion pump, the pipeline plugging device, the pipe making machine and the water pump are all arranged in the current pipeline;
the current pipeline is provided with an inspection well and communicated with the inspection well;
the inspection well comprises a first inspection well, a second inspection well, a third inspection well and a fourth inspection well; the first inspection well, the second inspection well, the third inspection well and the fourth inspection well are sequentially arranged on the existing pipeline at intervals from downstream to upstream;
the guide pump is positioned below the first inspection well and is communicated with the fourth inspection well through a guide pipeline;
the water suction pump is positioned below the third inspection well and is communicated with the fourth inspection well through a diversion pipeline;
one end of the cooling hose is connected with the liquid nitrogen cooling device, and the other end of the cooling hose passes through the second inspection well and is positioned in the area to be repaired in the current pipeline;
the pipe making machine is located in the area to be repaired.
In the technical scheme, the front end of the tube making machine is provided with the infrared quartz heating lamp.
In the technical scheme, the pipeline plugging device is at least selected from an air bag, a plug and a brick.
In the technical scheme, the pipeline plugging device comprises a first pipeline plugging device and a second pipeline plugging device,
the first pipeline plugging device is positioned between the first inspection well and the second inspection well and is arranged adjacent to the first inspection well;
the second pipeline plugging device is located between the third inspection well and the fourth inspection well and is arranged close to the third inspection well.
In the above technical scheme, the pipe making machine is an expansion spiral pipe winding machine.
In order to achieve the second object of the present invention, the technical solution of the present invention is: the repairing method of the water stopping repairing structure of the difficult-to-descend water pipeline with large burial depth and high underground water level is characterized by comprising the following steps of: comprises the following steps of (a) preparing a solution,
the method comprises the following steps: the pipeline is plugged by a pipeline plugging device;
step two: arranging a guide pump for guide and drainage;
step three: drawing the cooling hose to the area to be repaired by the duckbill;
step four: starting a liquid nitrogen device, and freezing a water body at the area to be repaired in the pipeline under the current situation;
step five: forming a freezing area after the area to be repaired in the pipeline is completely frozen under the current situation, and draining accumulated water in the inspection well;
step six: a water pump is arranged in the inspection well, a pipe making machine is installed, and an infrared quartz heating lamp is additionally arranged at the machine head;
step seven: turning on an infrared quartz heating lamp, melting icicles in a freezing area layer by layer through heating, and meanwhile, slowly pushing a tube making machine forward to prepare a spiral tube; after entering the inspection well, the melted water is pumped and drained through a water pump;
step eight: when the icicle in the freezing area is melted too fast in the process of preparing the spiral tube, supplementing liquid nitrogen to the liquid nitrogen cooling device for cooling and freezing again;
step nine: and after the repair is finished, grouting is carried out at the gap between the spiral pipe and the current pipeline formed by repair, so that the spiral pipe and the current pipeline form a unified whole.
The large buried depth and high underground water level in the invention mean that the buried depth of the pipeline exceeds 3m, and the underground water level is above the top of the pipeline.
Compared with the prior art, the invention has the following advantages:
(1) the drainage pipeline can be repaired in a full water state (the prior art only allows 20 percent of water to be accumulated in the pipeline), the efficiency is high, and the repairing effect is good; the method solves the problem of repairing the underground water level pipe section with large buried depth, and is particularly suitable for non-excavation repairing of pipelines with large buried depth, high infiltration capacity and the like, such as river-crossing pipelines, inverted siphon pipelines and the like, and a water pump cannot pump and drain precipitation;
(2) freezing water stop (preventing underground water from infiltrating by freezing in the pipeline, realizing full water restoration of the drainage pipeline without ground drilling operation) is adopted, and the method is environment-friendly and pollution-free;
(3) civil construction is not needed, and the operation is simple and convenient;
(4) the construction process is improved by adopting an expansion spiral winding method, so that the infiltration prevention effect is good;
(5) not only strengthen the pipeline, played the effect that prevents the pipeline seepage simultaneously, prevent foreign matters such as root from penetrating, increase pipeline service life.
Drawings
FIG. 1 is a flow chart of the present invention.
FIG. 2 is a schematic view of the present invention.
In the figure, 1-inspection well, 1-1-first inspection well, 1-2-second inspection well, 1-3-third inspection well, 1-4-fourth inspection well, 2-current pipeline, 3-guide pump, 4-pipeline plugging device, 4-1-first pipeline plugging device, 4-2-second pipeline plugging device, 5-liquid nitrogen cooling device, 6-cooling hose, 7-guide pipeline, 8-pipe making machine, 9-spiral winding pipe base material, 10-water pump, 11-freezing area and 12-infrared quartz heating lamp.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily understood by the description.
Referring to FIG. 2: a water stopping and repairing structure of a difficult-to-descend water pipeline with large buried depth and high underground water level comprises a diversion pump 3, a pipeline plugging device 4, a liquid nitrogen cooling device 5, a cooling hose 6, a diversion pipeline 7, a pipe making machine 8 and a water suction pump 10;
the diversion pump 3, the pipeline plugging device 4, the pipe making machine 8 and the water pump 10 are all arranged in the existing pipeline 2;
the inspection well 1 is arranged on the current pipeline 2, the current pipeline 2 is communicated with the inspection well 1, a diversion pipeline 7 is convenient to communicate a diversion pump 3 with a fourth inspection well 1-4, and water in the current pipeline 2 is discharged to the downstream of the area to be repaired through the fourth inspection well 1-4; and the liquid nitrogen cooling device 5 is convenient to freeze the area to be repaired through the cooling hose 6; the water pump 10 and the fourth inspection well 1-4 are conveniently communicated through the diversion pipeline 7, and the water body melted in the freezing area 11 is discharged to the downstream of the area to be repaired through the fourth inspection well 1-4;
the inspection well 1 comprises a first inspection well 1-1, a second inspection well 1-2, a third inspection well 1-3 and a fourth inspection well 1-4; the first inspection well 1-1, the second inspection well 1-2, the third inspection well 1-3 and the fourth inspection well 1-4 are sequentially arranged on the existing pipeline 2 at intervals from the downstream to the upstream;
the guide pump 3 is positioned below the first inspection well 1-1 and is communicated with the fourth inspection well 1-4 through a guide pipeline 7;
the water suction pump 10 is positioned below the third inspection well 1-3 and is communicated with the fourth inspection well 1-4 through a diversion pipeline 7; the guide pipeline 7 is communicated with the water pump 10 and the fourth inspection well 1-4, and water melted in the freezing area 11 is discharged to the downstream of the area to be repaired through the fourth inspection well 1-4 and can also be used for discharging accumulated water in the area to be repaired;
one end of a cooling hose 6 is connected with the liquid nitrogen cooling device 5, and the other end of the cooling hose passes through the second inspection well 1-2 and is positioned at a to-be-repaired area in the existing pipeline 2 (namely, in the existing pipeline 2 between the second inspection well 1-2 and the third inspection well 1-3); used for freezing the water body in the area to be repaired in the pipeline 2;
the pipe making machine 8 is located in an area to be repaired and used for preparing a spiral pipe and repairing the existing pipeline 2.
Further, an infrared quartz heating lamp 12 is arranged at the front end of the tube making machine 8 and used for heating the freezing area and melting the ice columns layer by layer.
Further, the pipeline plugging device 4 is at least selected from air bags, plugs and bricks, and the plugging effect is guaranteed.
Further, the pipeline plugging device 4 comprises a first pipeline plugging device 4-1 and a second pipeline plugging device 4-2,
the first pipeline plugging device 4-1 is positioned between the first inspection well 1-1 and the second inspection well 1-2 and is arranged adjacent to the first inspection well 1-1;
the second pipeline plugging device 4-2 is positioned between the third inspection well 1-3 and the fourth inspection well 1-4 and is arranged close to the third inspection well 1-3; isolating the area to be repaired, and preventing the incoming water on the upper upstream of the pipeline 2 from entering the area to be repaired under the current situation and influencing the repairing effect;
the guide pump 3 is positioned at the upstream of the first pipeline plugging device 4-1, and is used for pumping the upstream water to the downstream through the guide pipeline 7 so as to ensure the normal operation of the repair work;
the water suction pump 10 is positioned at the upstream of the second pipeline plugging device 4-2, and pumps the water body melted in the freezing area to the downstream through the diversion pipeline 7, so that the normal operation of the repair work is ensured.
Furthermore, the pipe making machine 8 adopts an expansion spiral pipe winding machine, so that the pipe making efficiency is high; the tube making machine 8 is connected to a spirally wound tube base material 9.
Referring to fig. 1 and 2, it can be seen that: the repairing method of the water stopping repairing structure of the difficult-to-descend water pipeline with large burial depth and high underground water level is characterized by comprising the following steps of: comprises the following steps of (a) carrying out,
the method comprises the following steps: the pipeline is plugged by a pipeline plugging device 4 (such as an air bag, a plug, a brick building and the like);
step two: arranging a guide pump 3 for guide and drainage;
step three: drawing the cooling hose 6 to the area to be repaired by the duckbill;
step four: starting a liquid nitrogen device, and freezing a water body at the area to be repaired in the pipeline 2 under the current situation;
step five: under the current situation, after the area to be repaired in the pipeline 2 is completely frozen, a freezing area 11 is formed, and accumulated water in the inspection well 1 is drained;
step six: a water pump 10 is arranged in the inspection well 1, a pipe making machine 8 is installed, and an infrared quartz heating lamp 12 is additionally arranged at the machine head;
step seven: turning on an infrared quartz heating lamp 12, melting icicles in the freezing area 11 layer by layer through heating, and meanwhile, slowly pushing forward a tube making machine 8 to prepare a spiral tube; after entering the inspection well 1, the melted water is pumped and drained through a water pump 10;
step eight: when the icicle in the freezing area 11 is melted too fast in the process of preparing the spiral tube, supplementing liquid nitrogen to the liquid nitrogen cooling device 5 for cooling and freezing again;
step nine: and after the repair is finished, grouting is carried out at the gap between the repaired spiral pipe and the current pipeline 2, so that the spiral pipe and the current pipeline 2 form a unified whole.
Examples
The invention is explained in detail by taking the embodiment of the invention as an example for trying to be used for the water-stopping repair of a river-crossing pipeline of a certain project, and the invention also has the guidance function for applying the invention to the water-stopping repair of other pipelines with large burial depth and high underground water level.
The burial depth of the river-crossing pipeline in the embodiment is more than about 5m, and the underground water level is above the top of the river-crossing pipeline.
The method for repairing the water stop of the river-crossing pipeline of a certain project in the embodiment comprises the following steps:
firstly, a pipeline plugging device 4 is adopted to plug the pipeline 2 at the upstream and downstream current situations, and the pipeline plugging device 4 adopts a bricking mode;
then a diversion pump 3 and a diversion pipeline 7 are arranged to divert the upstream incoming water into a downstream fourth inspection well 1-4;
then the duck beast pulls the cooling hose 6 to enter the current pipeline 2; starting the liquid nitrogen cooling device 5, freezing the water body in the pipeline 2 under the current situation to form a freezing area 11, wherein the liquid nitrogen cooling device 5 adopts a finished product device; arranging a water pump 10 in a third downstream inspection well 1-3 after freezing, draining sewage in the inspection well, installing a pipe making machine 8 (namely a spiral winding pipe making machine), wherein the pipe making machine 8 adopts a finished product device, and an infrared quartz heating lamp 12 is additionally arranged in front of a machine head; starting an infrared quartz heating lamp 12 and a tube making machine 8, melting frozen icicles in a freezing area 11 under the heating of the infrared quartz heating lamp 12, discharging water into an inspection well through a water pump 10, moving the tube making machine 8 forwards after the freezing area 11 is melted for a certain distance, repairing a pipeline and preparing a spiral tube;
and repeating the steps until the repair is completed.
After the repair is finished, grouting reinforcement is performed at the gap between the spiral pipe and the current pipeline 2 according to the requirements of a spiral winding method, and specific materials and requirements are adopted according to the relevant requirements of the spiral winding method.
And (4) conclusion: the embodiment can prevent groundwater infiltration through freezing in the pipeline, realizes that the pipeline is full of water and restores, and is efficient, the repair effect is good, need not to carry out ground drilling operation, need not civil engineering construction, and is easy and simple to handle, and the environmental protection is pollution-free.
Other parts not described belong to the prior art.
Claims (6)
1. The utility model provides a high groundwater level of big buried depth difficult precipitation pipeline stagnant water restoration structure which characterized in that: comprises a diversion pump (3), a pipeline plugging device (4), a liquid nitrogen cooling device (5), a cooling hose (6), a diversion pipeline (7), a pipe making machine (8) and a water pump (10);
the diversion pump (3), the pipeline plugging device (4), the pipe making machine (8) and the water pump (10) are all arranged in the existing pipeline (2);
the current pipeline (2) is provided with an inspection well (1), and the current pipeline (2) is communicated with the inspection well (1);
the inspection well (1) comprises a first inspection well (1-1), a second inspection well (1-2), a third inspection well (1-3) and a fourth inspection well (1-4); the first inspection well (1-1), the second inspection well (1-2), the third inspection well (1-3) and the fourth inspection well (1-4) are sequentially arranged at intervals from the downstream to the upstream;
the diversion pump (3) is positioned below the first inspection well (1-1) and is communicated with the fourth inspection well (1-4) through a diversion pipeline (7);
the water suction pump (10) is positioned below the third inspection well (1-3) and is communicated with the fourth inspection well (1-4) through a diversion pipeline (7);
one end of a cooling hose (6) is connected with the liquid nitrogen cooling device (5), and the other end of the cooling hose passes through the second inspection well (1-2) and is positioned in a to-be-repaired area in the current pipeline (2);
the pipe maker (8) is located in the area to be repaired.
2. The difficult downcomer pipeline stagnant water of big buried depth height ground water of claim 1 restores structure, its characterized in that: the front end of the tube making machine (8) is provided with an infrared quartz heating lamp (12).
3. The difficult downcomer pipeline stagnant water of big buried depth height ground water of claim 2 restores structure, its characterized in that: the pipeline plugging device (4) is at least selected from air bags, plugs and bricks.
4. The difficult downcomer pipeline stagnant water restoration structure of big buried depth height ground water level according to claim 3, characterized by: the pipeline plugging device (4) comprises a first pipeline plugging device (4-1) and a second pipeline plugging device (4-2),
the first pipeline plugging device (4-1) is positioned between the first inspection well (1-1) and the second inspection well (1-2) and is arranged adjacent to the first inspection well (1-1);
the second pipeline plugging device (4-2) is located between the third inspection well (1-3) and the fourth inspection well (1-4) and is arranged close to the third inspection well (1-3).
5. The difficult downcomer pipeline stagnant water restoration structure of big buried depth height ground water level according to claim 4, characterized by: the pipe making machine (8) adopts an expansion spiral pipe winding machine.
6. The method for repairing the water-stopping repairing structure of the large buried depth high underground water level difficult-to-descend water pipeline according to any one of claims 1 to 5, wherein the method comprises the following steps: comprises the following steps of (a) preparing a solution,
the method comprises the following steps: the pipeline is plugged by a pipeline plugging device (4);
step two: arranging a guide pump (3) for guide and discharge;
step three: drawing the cooling hose (6) to the area to be repaired by the duckbill;
step four: starting a liquid nitrogen device, and freezing a water body at the area to be repaired in the pipeline (2) under the current situation;
step five: under the present situation, after the area to be repaired in the pipeline (2) is completely frozen, a freezing area (11) is formed, and accumulated water in the inspection well (1) is drained;
step six: a water pump (10) is arranged in the inspection well (1), a pipe making machine (8) is installed, and an infrared quartz heating lamp (12) is additionally arranged at the machine head;
step seven: turning on an infrared quartz heating lamp (12), melting icicles in a freezing area (11) layer by layer through heating, and meanwhile, slowly pushing a tube making machine (8) forward to prepare a spiral tube; after entering the inspection well (1), the melted water is pumped and drained through a water pump (10);
step eight: when the icicle in the freezing area (11) is melted too fast in the process of preparing the spiral tube, the liquid nitrogen cooling device (5) is supplemented with liquid nitrogen for cooling and freezing again;
step nine: and after the repair is finished, grouting is carried out at the gap between the repaired spiral pipe and the current pipeline (2), so that the spiral pipe and the current pipeline (2) form a unified whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345404.9A CN114658948A (en) | 2022-03-31 | 2022-03-31 | Water-stopping repair structure for high-buried-depth high-underground-water-level difficult-to-descend pipeline and repair method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345404.9A CN114658948A (en) | 2022-03-31 | 2022-03-31 | Water-stopping repair structure for high-buried-depth high-underground-water-level difficult-to-descend pipeline and repair method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114658948A true CN114658948A (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210345404.9A Pending CN114658948A (en) | 2022-03-31 | 2022-03-31 | Water-stopping repair structure for high-buried-depth high-underground-water-level difficult-to-descend pipeline and repair method thereof |
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| Country | Link |
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| CN (1) | CN114658948A (en) |
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2022
- 2022-03-31 CN CN202210345404.9A patent/CN114658948A/en active Pending
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