CN113374975B - Non-excavation repairing method for drainage pipeline - Google Patents
Non-excavation repairing method for drainage pipeline Download PDFInfo
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- CN113374975B CN113374975B CN202110588205.6A CN202110588205A CN113374975B CN 113374975 B CN113374975 B CN 113374975B CN 202110588205 A CN202110588205 A CN 202110588205A CN 113374975 B CN113374975 B CN 113374975B
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- air bag
- grouting
- annular air
- inflation inlet
- pressure
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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
- F16L55/1645—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe
- F16L55/16455—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a sealing material being introduced inside the pipe by means of a tool moving in the pipe a part of the tool defining, together with the inner wall of the pipe, an enclosed space into which sealing material is injected
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a trenchless repairing method of a drainage pipeline, which comprises the following steps: 1) pushing the first annular air bag, the second annular air bag and the strip-shaped air bag in place; 2) inflating the first annular air bag, the second annular air bag and the strip-shaped air bag, and determining to finish inflation through a first pressure gauge and a second pressure gauge; 3) inflating the grouting area of the drainage pipeline, and determining that the drainage pipeline is damaged in the grouting area through a third pressure gauge; 4) grouting the grouting area of the drainage pipeline until the pressure value of the third pressure gauge is suddenly increased; 5) inflating the grouting area of the drainage pipeline; and then continuously observing the pressure value of the third pressure gauge, determining that grouting repair is finished if the pressure value is stable and unchanged, and returning to the step 4) if the pressure value is reduced. The trenchless repairing method for the drainage pipeline can flexibly adjust the length of the grouting area of the drainage pipeline and can better adapt to actual needs.
Description
Technical Field
The invention relates to a trenchless repairing method of a drainage pipeline.
Background
Underground drainage pipe is the basic component of drain pipe network, and if drainage pipe has the damage, just need carry out the slip casting to drainage pipe's damaged position and restore. The Chinese patent with the application number of 201922020065.3 discloses a trenchless grouting repair device for a drainage pipeline, which comprises an air bag, an air compressor and a grouting machine; the airbag includes: the first inflatable part and the pair of second inflatable parts are respectively positioned at two sides of the first inflatable part; when the air bag is in a full-air state, the outer diameter of the second inflation part is larger than that of the first inflation part, at the moment, the air bag is in a dumbbell shape, the pair of second inflation parts of the air bag is tightly attached to the pipeline, the first inflation part of the air bag is concave relative to the second inflation part, the grouting machine is communicated with the grouting opening formed in the first inflation part, the pipe section of the drainage pipeline between the pair of second inflation parts can be grouted, the damaged part of the pipe section is repaired, and the region of the drainage pipeline between the pair of second inflation parts is the grouting region of the drainage pipeline. However, in this patent, only one air bag is used, and the first inflation part and the pair of second inflation parts are integrally connected, so that the distance between the pair of second inflation parts cannot be flexibly adjusted, that is, the length of the grouting area of the drainage pipeline cannot be adjusted as required, which causes inconvenience.
Disclosure of Invention
The invention aims to provide a non-excavation repairing method of a drainage pipeline, which adopts a non-excavation grouting repairing device to carry out non-excavation repairing on the drainage pipeline;
the trenchless grouting repairing device comprises a grouting machine, an air compressor, a first annular air bag, a second annular air bag, a strip-shaped air bag, a first pressure gauge, a second pressure gauge and a third pressure gauge;
the first annular air bag is provided with a first inflation port for inflating the first annular air bag, the inner ring of the first annular air bag is also provided with a first pressure sensing component, and the first pressure sensing component is externally connected with a first pressure gauge;
the second annular air bag is provided with a second inflation port for inflating the interior of the second annular air bag, the inner ring of the second annular air bag is also provided with a second pressure sensing part, and the second pressure sensing part is externally connected with a second pressure gauge;
the strip-shaped air bag is provided with a third inflation inlet for inflating the strip-shaped air bag, the strip-shaped air bag is also provided with a fourth inflation inlet for inflating the strip-shaped air bag, a third pressure sensing part is also arranged on the outer peripheral wall of the strip-shaped air bag, a grouting port for grouting the strip-shaped air bag is also arranged on the strip-shaped air bag, the fourth inflation inlet, the third pressure sensing part and the grouting port are all positioned in the middle of the strip-shaped air bag in the length direction, and a third pressure gauge is connected outside the third pressure sensing part;
the air compressor is communicated with the first inflation inlet, the second inflation inlet, the third inflation inlet and the fourth inflation inlet through air transmission pipelines;
the grouting machine is communicated with the grouting opening through a grouting pipeline;
adopt non-excavation slip casting prosthetic devices to carry out non-excavation restoration to drainage pipe, including the following step:
1) pushing the first annular air bag, the second annular air bag and the strip-shaped air bag to the damaged position of the pipeline, so that the first annular air bag and the second annular air bag are respectively arranged at two sides of the damaged area; the strip-shaped air bag passes through the inner rings of the first annular air bag and the second annular air bag, and a fourth inflation port, a third pressure sensing part and a grouting port on the strip-shaped air bag are positioned between the first annular air bag and the second annular air bag;
2) then the air compressor conveys air to the first inflation inlet, the second inflation inlet and the third inflation inlet through the air conveying pipe, the first annular air bag is inflated through the first inflation inlet, the second annular air bag is inflated through the second inflation inlet, the strip-shaped air bag is inflated through the third inflation inlet, the pressure value detected by the first pressure sensing component is read through the first pressure gauge, the pressure value detected by the second pressure sensing component is read through the second pressure gauge, and when the pressure values on the first pressure gauge and the second pressure gauge exceed the first preset pressure value, the air compressor stops conveying air to the first inflation inlet, the second inflation inlet and the third inflation inlet; at the moment, the outer rings of the first annular air bag and the second annular air bag are respectively and tightly attached to the pipeline, and the outer peripheral walls of the strip-shaped air bags are respectively and tightly attached to the inner rings of the first annular air bag and the second annular air bag; taking the area of the drainage pipeline between the first annular air bag and the second annular air bag as a grouting area of the drainage pipeline, wherein the fourth inflation inlet, the third pressure sensing part and the grouting opening are all positioned in the grouting area of the drainage pipeline;
3) then the air compressor conveys air to a fourth inflation inlet through an air conveying pipeline, the fourth inflation inlet conveys air to a grouting area of a drainage pipeline, a third pressure gauge reads a pressure value detected by a third pressure sensing component, and when the pressure value on the third pressure gauge exceeds a second preset pressure value, the air compressor stops conveying air to the fourth inflation inlet; continuously observing the pressure value of the third pressure gauge, and determining that the drainage pipeline is damaged in the grouting area if the pressure value of the third pressure gauge is reduced;
4) then the grouting machine conveys the slurry to the grouting opening through the slurry conveying pipeline, and chemical slurry is injected into the grouting area of the drainage pipeline through the grouting opening; when the pressure value on the third pressure gauge is suddenly increased and exceeds a third preset pressure value, the grouting machine stops delivering the grout to the grouting port;
5) then the air compressor conveys air to a fourth inflation inlet through an air conveying pipeline, the fourth inflation inlet conveys air to a grouting area of a drainage pipeline, a third pressure gauge reads a pressure value detected by a third pressure sensing component, and when the pressure value on the third pressure gauge exceeds a fourth preset pressure value, the air compressor stops conveying air to the fourth inflation inlet; and continuously observing the pressure value of the third pressure gauge, determining that grouting repair is finished if the pressure value of the third pressure gauge is stable and unchanged, and repeating the step 4) and the step 5) if the pressure value of the third pressure gauge is reduced.
Preferably, the inner ring of the first annular bladder is coated with a non-slip coating.
Preferably, the inner ring of the second annular bladder is coated with a non-slip coating.
Preferably, the outer peripheral wall of the strip-shaped air bag is coated with an anti-slip coating.
The invention has the advantages and beneficial effects that: the trenchless repairing method for the drainage pipeline is provided, the length of a grouting area of the drainage pipeline can be flexibly adjusted, and the actual requirements can be better met.
Because the invention adopts three air bags, the first annular air bag, the second annular air bag and the strip-shaped air bag are respectively independent, the distance between the first annular air bag and the second annular air bag can be adjusted before the first annular air bag and the second annular air bag are inflated, so that the first annular air bag and the second annular air bag are close to or far away from each other, as long as the length of the strip-shaped air bag is greater than the distance between the first annular air bag and the second annular air bag, and a fourth inflation port, a third pressure sensing part and a grouting port on the strip-shaped air bag are positioned between the first annular air bag and the second annular air bag; the length of the drainage pipeline grouting area can be synchronously adjusted along with the distance between the first annular air bag and the second annular air bag, and the practical requirement can be better met.
Detailed Description
The following examples are provided to further illustrate embodiments of the present invention. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The technical scheme of the specific implementation of the invention is as follows:
a non-excavation repairing method for a drainage pipeline is characterized in that a non-excavation grouting repairing device is adopted to carry out non-excavation repairing on the drainage pipeline;
the trenchless grouting repairing device comprises a grouting machine, an air compressor, a first annular air bag, a second annular air bag, a strip-shaped air bag, a first pressure gauge, a second pressure gauge and a third pressure gauge;
the first annular air bag is provided with a first inflation port for inflating the first annular air bag, the inner ring of the first annular air bag is also provided with a first pressure sensing component, and the first pressure sensing component is externally connected with a first pressure gauge; the inner ring of the first annular air bag is coated with an anti-skid coating;
the second annular air bag is provided with a second inflation port for inflating the interior of the second annular air bag, the inner ring of the second annular air bag is also provided with a second pressure sensing part, and the second pressure sensing part is externally connected with a second pressure gauge; the inner ring of the second annular air bag is coated with an anti-skid coating;
the strip-shaped air bag is provided with a third inflation inlet for inflating the strip-shaped air bag, the strip-shaped air bag is also provided with a fourth inflation inlet for inflating the strip-shaped air bag, a third pressure sensing part is also arranged on the outer peripheral wall of the strip-shaped air bag, a grouting port for grouting the strip-shaped air bag is also arranged on the strip-shaped air bag, the fourth inflation inlet, the third pressure sensing part and the grouting port are all positioned in the middle of the strip-shaped air bag in the length direction, and a third pressure gauge is connected outside the third pressure sensing part; the outer peripheral wall of the strip-shaped air bag is coated with an anti-skid coating;
the air compressor is communicated with the first inflation inlet, the second inflation inlet, the third inflation inlet and the fourth inflation inlet through air transmission pipelines;
the grouting machine is communicated with the grouting opening through a grouting pipeline;
adopt non-excavation slip casting prosthetic devices to carry out non-excavation restoration to drainage pipe, including the following step:
1) pushing the first annular air bag, the second annular air bag and the strip-shaped air bag to the damaged position of the pipeline, so that the first annular air bag and the second annular air bag are respectively arranged at two sides of the damaged area; the strip-shaped air bag passes through the inner rings of the first annular air bag and the second annular air bag, and a fourth inflation port, a third pressure sensing part and a grouting port on the strip-shaped air bag are positioned between the first annular air bag and the second annular air bag;
2) then the air compressor conveys air to the first inflation inlet, the second inflation inlet and the third inflation inlet through the air conveying pipe, the first annular air bag is inflated through the first inflation inlet, the second annular air bag is inflated through the second inflation inlet, the strip-shaped air bag is inflated through the third inflation inlet, the pressure value detected by the first pressure sensing component is read through the first pressure gauge, the pressure value detected by the second pressure sensing component is read through the second pressure gauge, and when the pressure values on the first pressure gauge and the second pressure gauge exceed the first preset pressure value, the air compressor stops conveying air to the first inflation inlet, the second inflation inlet and the third inflation inlet; at the moment, the outer rings of the first annular air bag and the second annular air bag are respectively and tightly attached to the pipeline, and the outer peripheral wall of the strip-shaped air bag is respectively and tightly attached to the inner rings of the first annular air bag and the second annular air bag; taking the area of the drainage pipeline between the first annular air bag and the second annular air bag as a grouting area of the drainage pipeline, wherein the fourth inflation inlet, the third pressure sensing part and the grouting opening are all positioned in the grouting area of the drainage pipeline;
3) then the air compressor conveys air to a fourth inflation inlet through an air conveying pipeline, the fourth inflation inlet conveys air to a grouting area of a drainage pipeline, a third pressure gauge reads a pressure value detected by a third pressure sensing component, and when the pressure value on the third pressure gauge exceeds a second preset pressure value, the air compressor stops conveying air to the fourth inflation inlet; continuously observing the pressure value of the third pressure gauge, and determining that the drainage pipeline is damaged in the grouting area if the pressure value of the third pressure gauge is reduced;
4) then the grouting machine conveys the slurry to the grouting opening through the slurry conveying pipeline, and chemical slurry is injected into the grouting area of the drainage pipeline through the grouting opening; when the pressure value on the third pressure gauge is suddenly increased and exceeds a third preset pressure value, the grouting machine stops delivering the grout to the grouting port;
5) then the air compressor conveys air to a fourth inflation inlet through an air conveying pipeline, the fourth inflation inlet conveys air to a grouting area of a drainage pipeline, a third pressure gauge reads a pressure value detected by a third pressure sensing component, and when the pressure value on the third pressure gauge exceeds a fourth preset pressure value, the air compressor stops conveying air to the fourth inflation inlet; and continuously observing the pressure value of the third pressure gauge, determining that grouting repair is finished if the pressure value of the third pressure gauge is stable and unchanged, and returning to the step 4) if the pressure value of the third pressure gauge is reduced, namely repeating the step 4) and the step 5).
The first predetermined pressure value, the first predetermined pressure value and the fourth predetermined pressure value can be determined according to the actual situation.
Because the invention adopts three air bags, the first annular air bag, the second annular air bag and the strip-shaped air bag are respectively independent, the distance between the first annular air bag and the second annular air bag can be adjusted before the first annular air bag and the second annular air bag are inflated, so that the first annular air bag and the second annular air bag are close to or far away from each other, as long as the length of the strip-shaped air bag is greater than the distance between the first annular air bag and the second annular air bag, and a fourth inflation port, a third pressure sensing part and a grouting port on the strip-shaped air bag are positioned between the first annular air bag and the second annular air bag; the length of the drainage pipeline grouting area can be synchronously adjusted along with the distance between the first annular air bag and the second annular air bag, and the practical requirement can be better met.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The trenchless repairing method of the drainage pipeline is characterized in that the trenchless repairing is carried out on the drainage pipeline by adopting a trenchless grouting repairing device;
the trenchless grouting repairing device comprises a grouting machine, an air compressor, a first annular air bag, a second annular air bag, a strip-shaped air bag, a first pressure gauge, a second pressure gauge and a third pressure gauge;
the first annular air bag, the second annular air bag and the strip-shaped air bag are independent respectively;
the first annular air bag is provided with a first inflation port for inflating the first annular air bag, the inner ring of the first annular air bag is also provided with a first pressure sensing component, and the first pressure sensing component is externally connected with a first pressure gauge;
the second annular air bag is provided with a second inflation port for inflating the interior of the second annular air bag, the inner ring of the second annular air bag is also provided with a second pressure sensing part, and the second pressure sensing part is externally connected with a second pressure gauge;
the strip-shaped air bag is provided with a third inflation inlet for inflating the strip-shaped air bag, the strip-shaped air bag is also provided with a fourth inflation inlet for inflating the strip-shaped air bag, a third pressure sensing part is also arranged on the outer peripheral wall of the strip-shaped air bag, a grouting port for grouting the strip-shaped air bag is also arranged on the strip-shaped air bag, the fourth inflation inlet, the third pressure sensing part and the grouting port are all positioned in the middle of the strip-shaped air bag in the length direction, and a third pressure gauge is connected outside the third pressure sensing part;
the air compressor is communicated with the first inflation inlet, the second inflation inlet, the third inflation inlet and the fourth inflation inlet through air transmission pipelines;
the grouting machine is communicated with the grouting opening through a grouting pipeline;
adopt non-excavation slip casting prosthetic devices to carry out non-excavation restoration to drainage pipe, including the following step:
1) the first annular air bag, the second annular air bag and the strip-shaped air bag are pushed to the damaged position of the pipeline, and the distance between the first annular air bag and the second annular air bag is adjusted before the first annular air bag and the second annular air bag are inflated, so that the first annular air bag and the second annular air bag are respectively arranged on two sides of the damaged area; the strip-shaped air bag passes through the inner rings of the first annular air bag and the second annular air bag, and a fourth inflation port, a third pressure sensing part and a grouting port on the strip-shaped air bag are positioned between the first annular air bag and the second annular air bag;
2) the air compressor transmits air to the first inflation inlet, the second inflation inlet and the third inflation inlet through the air transmission pipeline, the first annular air bag is inflated through the first inflation inlet, the second annular air bag is inflated through the second inflation inlet, the strip-shaped air bag is inflated through the third inflation inlet, the pressure value detected by the first pressure sensing component is read through the first pressure gauge, the pressure value detected by the second pressure sensing component is read through the second pressure gauge, and when the pressure values on the first pressure gauge and the second pressure gauge exceed a first preset pressure value, the air compressor stops transmitting air to the first inflation inlet, the second inflation inlet and the third inflation inlet; at the moment, the outer rings of the first annular air bag and the second annular air bag are respectively and tightly attached to the pipeline, and the outer peripheral walls of the strip-shaped air bags are respectively and tightly attached to the inner rings of the first annular air bag and the second annular air bag; taking the area of the drainage pipeline between the first annular air bag and the second annular air bag as a grouting area of the drainage pipeline, wherein the fourth inflation inlet, the third pressure sensing part and the grouting opening are all positioned in the grouting area of the drainage pipeline;
3) the air compressor conveys air to a fourth inflation inlet through the air conveying pipeline, the fourth inflation inlet conveys air to a grouting area of the drainage pipeline, a third pressure gauge reads a pressure value detected by the third pressure sensing component, and when the pressure value on the third pressure gauge exceeds a second preset pressure value, the air compressor stops conveying air to the fourth inflation inlet; continuously observing the pressure value of the third pressure gauge, and determining that the drainage pipeline is damaged in the grouting area if the pressure value of the third pressure gauge is reduced;
4) the grouting machine conveys the slurry to the grouting opening through the slurry conveying pipeline, and injects chemical slurry to the grouting area of the drainage pipeline through the grouting opening; when the pressure value on the third pressure gauge is suddenly increased and exceeds a third preset pressure value, the grouting machine stops delivering the grout to the grouting port;
5) the air compressor transmits air to the fourth inflation inlet through the air transmission pipeline, the fourth inflation inlet inflates air to the grouting area of the drainage pipeline, the pressure value detected by the third pressure sensing component is read through a third pressure gauge, and when the pressure value on the third pressure gauge exceeds a fourth preset pressure value, the air compressor stops transmitting air to the fourth inflation inlet; and continuously observing the pressure value of the third pressure gauge, determining that grouting repair is finished if the pressure value of the third pressure gauge is stable and unchanged, and returning to the step 4) if the pressure value of the third pressure gauge is reduced.
2. The trenchless rehabilitation method for a drainpipe according to claim 1, wherein the inner ring of the first annular bladder is coated with an anti-slip coating.
3. The trenchless rehabilitation method for drainpipe according to claim 1, wherein the inner ring of the second annular bladder is coated with an anti-slip coating.
4. The trenchless rehabilitation method for drainage pipelines of claim 1, wherein the outer peripheral wall of the strip-shaped air bag is coated with an anti-slip coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588205.6A CN113374975B (en) | 2021-05-28 | 2021-05-28 | Non-excavation repairing method for drainage pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588205.6A CN113374975B (en) | 2021-05-28 | 2021-05-28 | Non-excavation repairing method for drainage pipeline |
Publications (2)
| Publication Number | Publication Date |
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| CN113374975A CN113374975A (en) | 2021-09-10 |
| CN113374975B true CN113374975B (en) | 2022-08-09 |
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| CN202110588205.6A Active CN113374975B (en) | 2021-05-28 | 2021-05-28 | Non-excavation repairing method for drainage pipeline |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006062337B3 (en) * | 2006-12-22 | 2008-03-27 | Beyert, Joachim, Dr. | Damaged spot e.g. sewer pipe, restructuring method for building, involves introducing grout into spot, and mixing catalyst components before introducing grout into spot, where cement and catalyst components with water/solid value are pasty |
| CN205447103U (en) * | 2015-12-30 | 2016-08-10 | 北京派普维尔管线技术有限公司 | Pipeline rehabilitation device |
| CN108194757A (en) * | 2017-12-28 | 2018-06-22 | 徐州徐工环境技术有限公司 | Pipeline repairing apparatus and repair method, sewer pipe tool car |
| CN211423695U (en) * | 2019-11-21 | 2020-09-04 | 苏州市平海排水服务有限公司 | Non-excavation drainage pipe slip casting prosthetic devices |
| CN112196057B (en) * | 2020-09-18 | 2021-10-12 | 长江生态环保集团有限公司 | In-pipe grouting device and grouting method |
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- 2021-05-28 CN CN202110588205.6A patent/CN113374975B/en active Active
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