CN112762269A - Construction method for repairing underground pipeline - Google Patents
Construction method for repairing underground pipeline Download PDFInfo
- Publication number
- CN112762269A CN112762269A CN202110008968.9A CN202110008968A CN112762269A CN 112762269 A CN112762269 A CN 112762269A CN 202110008968 A CN202110008968 A CN 202110008968A CN 112762269 A CN112762269 A CN 112762269A
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- China
- Prior art keywords
- pipeline
- lining hose
- water leakage
- leakage point
- plugging
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- F16L55/1652—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 the flexible liner being pulled into the damaged section
- F16L55/1654—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 the flexible liner being pulled into the damaged section and being inflated
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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
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/175—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a construction method for repairing an underground pipeline, which belongs to the field of municipal engineering construction, and comprises a CCTV monitor, a pipeline dredging device and ultraviolet curing equipment; the method also comprises the steps of setting traffic diversion, ventilating the pipeline, plugging two ends of an upstream inspection well and a downstream inspection well, dredging the pipeline, detecting CCTV, plugging a water leakage point, pulling in a lining hose, curing the hose by ultraviolet rays, recovering the road and the like. The invention discloses a construction method for repairing an underground pipeline, which repairs the underground pipeline through an ultraviolet light curing whole pipe, and solves the problem that the underground pipeline cannot be directly excavated and repaired when water leaks from the pipeline in a special section.
Description
Technical Field
The invention relates to the field of municipal engineering construction, in particular to a construction method for repairing an underground pipeline.
Background
In municipal pipelines in some main fields, if a water leakage point exists at the top of the pipeline close to a river channel, the water leakage point is difficult to repair, and the water leakage point does not have construction conditions for excavation repair, so that the water leakage point cannot be directly repaired.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a construction method for repairing an underground pipeline, which repairs the underground pipeline through an ultraviolet light curing whole pipe and solves the problem that the underground pipeline cannot be directly excavated and repaired when water leaks from the underground pipeline.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a construction method for repairing an underground pipeline, which comprises a CCTV monitor, a pipeline dredging device and ultraviolet curing equipment;
also comprises the following steps:
s1, arranging a closed construction area around the inspection well, conducting traffic diversion, and ventilating the underground pipeline to be repaired;
s2, plugging a water inlet of the upstream inspection well and a water outlet of the downstream inspection well by using an air bag after the pipeline is ventilated, and cleaning sludge in the pipeline by using dredging equipment after plugging;
s3, scanning the basic situation in the pipeline through CCTV detection equipment, and determining the position of a water leakage point;
s4, plugging the position of a water leakage point in the pipeline;
s5, after the water leakage point is blocked, whether the water leakage condition exists is determined visually, if the water leakage condition does not exist, the lining hose is immediately placed into the water leakage point, and the lining hose is cured through ultraviolet curing equipment;
and S6, taking out the blocking air bags at the upstream and downstream, recovering the drainage function of the pipeline, and recovering the normal operation of the road.
Preferably, in step S4, the step of plugging the water leakage point in the pipeline is as follows:
a. a timber pile is driven into the center of the water leakage point to extrude soil outside the pipeline of the water leakage point, and the top of the timber pile is sunk into the inner wall of the pipeline;
b. symmetrically driving wood piles along the periphery of the center of the wood pile to further extrude soil outside the water leakage point, wherein the wood piles are symmetrically crossed from bottom to top left and right, the surrounding wood pile tops sink into the inner wall of the pipeline, and the wood pile tops form an arc shape which is the same as that of the inner wall of the pipeline;
c. after the water flow at the water leakage point is obviously reduced and becomes leakage, the rapid-setting cement is adopted to be mixed into the mucilage, and the mucilage is rapidly divided into three layers to be smeared at the water leakage point.
Preferably, in step S5, the specific steps of placing the lining hose are as follows:
and placing a winch at a wellhead of a downstream outlet, manually dragging a steel wire rope of the winch from the downstream to an upstream wellhead through an existing pipeline, slowly dragging the steel wire rope into an underground pipeline after the steel wire rope is connected with a lining hose, plugging a port of the downstream lining hose by using an anchor ear after the lining hose is placed in place, blowing air from the upstream to the lining hose by using an air blower, and unfolding the lining hose.
Preferably, in step S5, the step of curing the lining hose by the ultraviolet curing apparatus is as follows:
and (3) feeding the ultraviolet lamp row from the upstream to the downstream, sealing the upper opening of the lining hose by using a lantern ring plate, opening a switch of the ultraviolet lamp row, and slowly pulling back the lamp row.
Preferably, after the lining hose is cured, the lining hose with two ends exceeding the pipeline is cut along the wall of the inspection well, and epoxy resin is adopted between the lining hose and the original concrete pipe for floating and plugging.
The invention has the beneficial effects that:
the ultraviolet photocuring whole pipe is repaired aiming at the special water leakage point existing at the top of the pipeline close to the river channel, and the problem that the pipeline in the section cannot be directly excavated and repaired when leaking water is solved.
Drawings
Fig. 1 is a construction diagram of a construction method for repairing an underground pipe according to an embodiment of the present invention.
Detailed Description
In practical engineering, for example, municipal pipelines in Kun mountain Yu river have the length of 192m, no well room in the middle, the pipe diameter of 800mm, the burial depth of about 9m, the water level in the river channel is about 1.2m below the road surface and is close to the river channel. A water leakage point is arranged at a position close to the top of one side of the river channel in the pipeline and is 108.5m away from the upstream well chamber. The surface of the pipeline at the water leakage point is seriously damaged to form an irregular circle with the diameter of about 20cm, the water flow is sprayed and has the diameter of about 9cm, and because the road section is a main traffic road, the traffic flow is larger, the road section is close to a river channel, the excavation repairing construction condition is not provided, and the ultraviolet light curing whole-pipe repairing is determined. Before the lining hose is placed into the pipeline, the leakage point needs to be subjected to leakage stoppage treatment.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the construction method for repairing an underground pipeline provided in this embodiment includes a CCTV monitor, a pipeline dredging device, and an ultraviolet curing device;
also comprises the following steps:
s1, arranging a closed construction area around the inspection well, conducting traffic diversion, and ventilating the underground pipeline to be repaired;
s2, plugging a water flow inlet of the upstream inspection well and a water flow outlet of the downstream inspection well by using an air bag after the pipeline is ventilated, and cleaning sludge in the pipeline by using dredging equipment after plugging is finished so as to ensure the cleanness of the pipeline;
s3, scanning the basic situation in the pipeline through CCTV detection equipment, and determining the position of a water leakage point;
s4, plugging the position of a water leakage point in the pipeline;
s5, after the water leakage point is blocked, whether the water leakage condition exists is determined visually, if the water leakage condition does not exist, the lining hose is immediately placed into the water leakage point, and the lining hose is cured through ultraviolet curing equipment;
and S6, taking out the blocking air bags at the upstream and downstream, recovering the drainage function of the pipeline, and recovering the normal operation of the road.
In order to realize the plugging of the water leakage point, further, in step S4, the steps for plugging the water leakage point in the pipeline are as follows:
a. a timber pile with the length of 40cm and the diameter of 5cm is driven into the center of the water leakage point, soil outside the pipeline of the water leakage point is extruded, and the top of the timber pile is sunk into the inner wall of the pipeline by 5 cm;
b. symmetrically driving wood piles with the length of 35cm and the diameter of 5cm along the periphery of the center of the wood pile to further extrude soil outside a water leakage point, wherein the wood piles are symmetrical in a left-right mode from bottom to top, the tops of the surrounding wood piles are sunk into the inner wall of the pipeline by 5cm, and the tops of the wood piles form an arc shape which is the same as that of the inner wall of the pipeline;
c. after the water flow at the water leakage point is obviously reduced and becomes leakage, adopting quick-setting cement according to the water-cement ratio of 1: 4, mixing the mixture into mucilage, quickly dividing the mucilage into three layers, smearing the mucilage on a water leakage point, wherein the thickness of the first layer is 2.5cm, the thickness of the second layer is 1.5cm, and the third layer is leveled to form an arc shape which is the same as that of the inner wall of the pipeline;
and (b) ventilating the pipeline before the timber pile is driven in the step a, detecting gas in a limited space, and enabling an operator to enter a water leakage point after the standard is met.
In order to place the lining hose, further, in step S5, the concrete steps of placing the lining hose are as follows:
and placing a winch at a wellhead of a downstream outlet, manually dragging a steel wire rope of the winch from the downstream to an upstream wellhead through an existing pipeline, slowly dragging the steel wire rope into an underground pipeline after the steel wire rope is connected with a lining hose, plugging a port of the downstream lining hose by using a hoop after the lining hose is placed in place, blowing air from the upstream to the lining hose by using an air blower, unfolding the lining hose, and enabling the thickness of the lining hose to be 8 mm.
In order to realize the ultraviolet curing, further, in step S5, the step of curing the lining hose by the ultraviolet curing apparatus is as follows:
and (3) feeding the ultraviolet lamp row from the upstream to the downstream, sealing the upper opening of the lining hose by using a lantern ring plate, opening a switch of the ultraviolet lamp row, and slowly pulling back the lamp row at the pulling speed of 5 mm/s.
In order to plug the lining hose, further, after the lining hose is cured, the lining hose with two ends exceeding the pipeline is cut along the wall of the inspection well, and epoxy resin is adopted between the lining hose and the original concrete pipe for floating plugging.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. The present invention is not to be limited by the specific embodiments disclosed herein, and other embodiments that fall within the scope of the claims of the present application are intended to be within the scope of the present invention.
Claims (6)
1. A construction method for repairing underground pipelines is characterized in that:
comprises a CCTV monitor, a pipeline dredging device and ultraviolet curing equipment;
also comprises the following steps:
s1, arranging a closed construction area around the inspection well, conducting traffic diversion, and ventilating the underground pipeline to be repaired;
s2, plugging a water inlet of the upstream inspection well and a water outlet of the downstream inspection well by using an air bag after the pipeline is ventilated, and cleaning sludge in the pipeline by using dredging equipment after plugging;
s3, scanning the basic situation in the pipeline through CCTV detection equipment, and determining the position of a water leakage point;
s4, plugging the position of a water leakage point in the pipeline;
s5, after the water leakage point is blocked, whether the water leakage condition exists is determined visually, if the water leakage condition does not exist, the lining hose is immediately placed into the water leakage point, and the lining hose is cured through ultraviolet curing equipment;
and S6, taking out the blocking air bags at the upstream and downstream, recovering the drainage function of the pipeline, and recovering the normal operation of the road.
2. A construction method for repairing an underground pipe according to claim 1, wherein:
in step S4, the steps for plugging the water leakage point in the pipeline are as follows:
a. a timber pile is driven into the center of the water leakage point to extrude soil outside the pipeline of the water leakage point, and the top of the timber pile is sunk into the inner wall of the pipeline;
b. symmetrically driving wood piles along the periphery of the center of the wood pile to further extrude soil outside the water leakage point, wherein the wood piles are symmetrically crossed from bottom to top left and right, the surrounding wood pile tops sink into the inner wall of the pipeline, and the wood pile tops form an arc shape which is the same as that of the inner wall of the pipeline;
c. after the water flow at the water leakage point is obviously reduced and becomes leakage, the rapid-setting cement is adopted to be mixed into the mucilage, and the mucilage is rapidly divided into three layers to be smeared at the water leakage point.
3. A construction method for repairing an underground pipe according to claim 1, wherein:
in step S5, the specific steps of placing the lining hose are as follows:
and placing a winch at a wellhead of a downstream outlet, manually dragging a steel wire rope of the winch from the downstream to an upstream wellhead through an existing pipeline, slowly dragging the steel wire rope into an underground pipeline after the steel wire rope is connected with a lining hose, plugging a port of the downstream lining hose by using an anchor ear after the lining hose is placed in place, blowing air from the upstream to the lining hose by using an air blower, and unfolding the lining hose.
4. A construction method for repairing an underground pipe according to claim 3, wherein:
before the lining hose is dragged into the underground pipeline, detergent is coated on the outer surface of the lining hose to reduce friction between the lining hose and the inner wall of the pipeline.
5. A construction method for repairing an underground pipe according to claim 1, wherein:
in step S5, the step of curing the lining hose by the ultraviolet curing apparatus is as follows:
and (3) feeding the ultraviolet lamp row from the upstream to the downstream, sealing the upper opening of the lining hose by using a lantern ring plate, opening a switch of the ultraviolet lamp row, and slowly pulling back the lamp row.
6. A construction method for repairing an underground pipe according to claim 5, wherein:
and after the lining hose is cured, cutting the lining hose with two ends exceeding the pipeline along the wall of the inspection well, and trowelling and plugging the lining hose and the original concrete pipe by adopting epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008968.9A CN112762269A (en) | 2021-01-05 | 2021-01-05 | Construction method for repairing underground pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008968.9A CN112762269A (en) | 2021-01-05 | 2021-01-05 | Construction method for repairing underground pipeline |
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| CN112762269A true CN112762269A (en) | 2021-05-07 |
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| CN202110008968.9A Pending CN112762269A (en) | 2021-01-05 | 2021-01-05 | Construction method for repairing underground pipeline |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236900A (en) * | 2021-06-11 | 2021-08-10 | 广州市卓建工程有限公司 | Drainage pipeline lining repairing construction method |
| CN114658953A (en) * | 2022-03-31 | 2022-06-24 | 广州易探科技有限公司 | Ultraviolet curing pipeline trenchless repairing system and processing method |
| CN115163964A (en) * | 2022-07-14 | 2022-10-11 | 哈工大机器人（合肥）国际创新研究院 | Reducing gasbag shutoff robot system |
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| CN113236900A (en) * | 2021-06-11 | 2021-08-10 | 广州市卓建工程有限公司 | Drainage pipeline lining repairing construction method |
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| CN114658953A (en) * | 2022-03-31 | 2022-06-24 | 广州易探科技有限公司 | Ultraviolet curing pipeline trenchless repairing system and processing method |
| CN115163964A (en) * | 2022-07-14 | 2022-10-11 | 哈工大机器人（合肥）国际创新研究院 | Reducing gasbag shutoff robot system |
| CN115163964B (en) * | 2022-07-14 | 2023-07-04 | 哈工大机器人（合肥）国际创新研究院 | Reducing gasbag shutoff robot system |
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