CN112049219A - Construction method of repairing system for leakage water of sewage pipe network - Google Patents
Construction method of repairing system for leakage water of sewage pipe network Download PDFInfo
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- CN112049219A CN112049219A CN202010895108.7A CN202010895108A CN112049219A CN 112049219 A CN112049219 A CN 112049219A CN 202010895108 A CN202010895108 A CN 202010895108A CN 112049219 A CN112049219 A CN 112049219A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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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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- 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
- F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of 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
- F16L55/1656—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 materials for flexible liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a construction method of a sewage pipe network leakage water repairing system, which comprises the following steps: judging the current water leakage condition of the sewage pipe network; repairing the leakage water by adopting a corresponding repairing method according to the leakage water condition; wherein: when the leakage water is judged to be leakage water at the joint of the sewage well and the pipeline, repairing the leakage water by adopting a sewage well cleaning and leakage stopping construction repairing method; when the water leakage is judged to be water leakage of a pipeline collapse part, repairing the water leakage by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair; and when the water leakage is judged to be water leakage at the pipe joints and water leakage caused by dislocation of large-diameter pipelines, repairing the water leakage by adopting a repairing method of double-expansion-ring treatment. The invention adopts various materials and various processes to be combined, and the problem of water leakage of the sewage pipe network is solved systematically.
Description
Technical Field
The invention relates to the technical field of building engineering, in particular to a construction method of a repairing system for leakage water of a sewage pipe network.
Background
The sewage of a sewage outlet needing to be collected is collected by a city or an area through a sewage pipe network and is discharged to a sewage treatment plant through a pipeline. The sewer network comprises pipelines and sewer wells, wherein the sewer wells are also called inspection wells and are arranged for the convenience of maintenance and installation of drainage, pollution discharge and the like of urban underground infrastructure. Are typically placed at turns, at key points, at changes in grade, or at intervals on straight pipe sections at pipe junctions to facilitate periodic inspection of the auxiliary structures.
Through on-site investigation and analysis, leakage water of the sewage pipe network often occurs in the joint of the sewage well and the pipeline, the pipeline collapse part and the pipe joint. If the problem of water leakage is not well treated, the sewage is directly discharged to pollute the soil, and the conditions of road surface collapse and the like can be caused. Therefore, the leakage of water in the sewage pipe network needs to be comprehensively treated.
Disclosure of Invention
The invention aims to provide a construction method of a sewage pipe network leakage water repairing system, which is used for comprehensively treating the sewage pipe network leakage water situation and systematically solving the leakage water problem.
The technical problem to be solved by the invention is realized by adopting the following technical scheme.
A construction method of a repairing system for leakage water of a sewage pipe network comprises the following steps:
judging the current water leakage condition of the sewage pipe network;
repairing the leakage water by adopting a corresponding repairing method according to the leakage water condition; wherein:
when the leakage water is judged to be leakage water at the joint of the sewage well and the pipeline, repairing the leakage water by adopting a sewage well cleaning and leakage stopping construction repairing method;
when the water leakage is judged to be water leakage of a pipeline collapse part, repairing the water leakage by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair;
and when the water leakage is judged to be water leakage at the pipe joints and water leakage caused by dislocation of large-diameter pipelines, repairing the water leakage by adopting a repairing method of double-expansion-ring treatment.
In the preferred embodiment of the present invention:
as one-step improvement, when a method for repairing the sewage well cleaning and plugging construction is adopted to repair the leakage water, the method comprises the following steps:
s11, washing the well wall by a high-pressure water gun;
s12, chiseling the joint of the bilge well and the pipeline in a V shape by using an electric pick;
s13, drilling holes by adopting an electric hammer, embedding a water-stop needle head in advance, and grouting water-soluble or oil-soluble polyurethane to a gap by a high-pressure grouting machine;
and S14, cleaning the water-stopping needle head after checking that no leakage exists, and carrying out hole repairing by using a plugging material.
As a one-step improvement, after the electric hammer is adopted to drill the hole in step S13, the method further includes:
s131, grouting and reinforcing soil outside the bilge well to form a waterproof curtain waterproof layer.
As a further improvement, after step S14, the method further includes a step of reinforcing the inner wall of the sewage disposal well:
s15, fixing the steel wire mesh on the well wall by stainless steel rivets;
and S16, spraying an inorganic anti-corrosion mortar protective layer when the upper surface of the well wall is wet but has no open water.
As a one-step improvement, when a repairing method of land curing pretreatment is adopted, the method comprises the following steps:
s21, adopting a grouting mode to consolidate the soft soil layer and the quicksand stratum around the deformed and collapsed part;
s22, cutting the segment at the deformed and collapsed part;
s23, removing impurities at the collapse part and recovering the space in the pipeline;
and S24, supporting and keeping the pipe position space by using a lining steel pipe piece.
As a one-step improvement, when the repairing method of ultraviolet curing repair is adopted, the method comprises the following steps:
s25, pulling the glass fiber reinforced hose into a pipe section to be repaired;
s26, inflating and expanding the hose to fit the inner wall of the pipeline;
s27 and curing the hose under the action of ultraviolet light.
As a one-step improvement, when a double-expansion-ring processing method is adopted for repairing the leakage water, the method comprises the following steps:
s31, cleaning the pipeline and the pipeline interface gap, and carrying out water stop treatment at the pipeline interface;
s32, filling the pipeline interface gap to be flush with the pipe wall;
s33, sealing the pipeline connecting interface gap by a rubber sealing strip, wherein the rubber sealing strip is positioned at the pipe orifice end of two adjacent pipelines;
s34, placing the stainless steel holding belt in the ring groove of the rubber sealing belt;
s35, applying pressure towards the bottom of the rubber seal belt ring groove to the stainless steel holding belt by using a special hydraulic expander so as to expand the bending curvature radius of the stainless steel holding belt to be the same as the curvature radius of the pipeline;
s35, a steel wedge is inserted between the adjacent stainless steel retaining band ports to form a complete retaining ring with the stainless steel retaining band.
As a one-step improvement, the method for judging the current water leakage condition of the sewage pipe network comprises the following steps:
s41, plugging the upstream of the pipe section to be detected by a water plugging air bag matched with the pipe diameter to be detected;
s42, cleaning the pipeline in large flow and subsection mode by using a waterwheel;
s43, sucking mud from the sludge and the quicksand in the pipeline by using a sewage pump;
and S44, detecting by adopting a detection camera lens entering the detection pipeline.
As a further improvement, in step S44, the movement locus of the imaging lens is located on the axis of the duct.
And as a one-step improvement, when the leakage water is judged to be the leakage water at the pipe joints and no joint error or separation condition exists between the pipe joints, repairing the leakage water by adopting a repairing method of filling and plugging the leakage gaps of the pipe joints in a grouting mode.
The construction method of the sewage pipe network leakage water repairing system of the embodiment of the invention has the beneficial effects that:
the invention determines the corresponding waterproof and leaking stoppage scheme according to different leaking water parts of the sewage pipe network, not only repairs and reinforces the leaking water parts, but also achieves the function of protecting and preventing leakage of a new structure, can prolong the service life of the sewage pipe network and reduce the potential safety hazard.
When water leaks from the seam, repairing the leaked water by adopting a repairing method of sewage well cleaning and plugging construction; after polyurethane is poured into the sewage pipeline interface gap, the seepage-proofing and leakage-proofing capabilities are greatly improved, and the original rigid interface is a flexible interface with a certain degree. When water leaks from the pipeline collapse part, repairing the leaked water by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair; the repairing steps are smooth and easy to connect, the construction is safer, and the ultraviolet curing repairing can achieve a good pipeline inner wall repairing effect. When water leaks from pipe joints and the large-diameter pipeline is dislocated to cause water leakage, the water leakage is repaired by adopting a repair method of double-expansion ring treatment, so that the excavation is avoided, the engineering quantity is saved, and the special high-strength water-stopping sealing tape is installed and fixed on two sides of a pipeline connector by applying pressure to the stainless steel double-expansion ring, so that the flexible connection with long-term and high-tightness performance is established at the joint. The invention adopts various materials and various processes to be combined, and the problem of water leakage of the sewage pipe network is solved systematically.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
The following is a specific description of the construction method of the system for repairing leakage water in a sewerage pipe network according to the embodiment of the present invention.
Example 1
The construction method of the leakage water repairing system for the sewage pipe network provided by the embodiment of the invention comprises the following steps:
judging the current water leakage condition of the sewage pipe network;
repairing the leakage water by adopting a corresponding repairing method according to the leakage water condition; wherein:
when the leakage water is judged to be leakage water at the joint of the sewage well and the pipeline, repairing the leakage water by adopting a sewage well cleaning and leakage stopping construction repairing method;
when the water leakage is judged to be water leakage of a pipeline collapse part, repairing the water leakage by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair;
and when the water leakage is judged to be water leakage at the pipe joints and water leakage caused by dislocation of large-diameter pipelines, repairing the water leakage by adopting a repairing method of double-expansion-ring treatment.
The invention determines the corresponding waterproof and leaking stoppage scheme according to different leaking water parts of the sewage pipe network, not only repairs and reinforces the leaking water parts, but also achieves the function of protecting and preventing leakage of a new structure, can prolong the service life of the sewage pipe network and reduce the potential safety hazard.
When water leaks from the joint, repairing the leaked water by adopting a repairing method of sewage well cleaning and plugging construction; after polyurethane is poured into the sewage pipeline interface gap, the seepage-proofing and leakage-proofing capabilities are greatly improved, and the original rigid interface is a flexible interface with a certain degree. When water leaks from the pipeline collapse part, repairing the leaked water by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair; the repairing steps are smooth and easy to connect, the construction is safer, and the ultraviolet curing repairing can achieve a good pipeline inner wall repairing effect. When water leaks from pipe joints and the large-diameter pipeline is dislocated to cause water leakage, the water leakage is repaired by adopting a repair method of double-expansion ring treatment, so that the excavation is avoided, the engineering quantity is saved, and the special high-strength water-stopping sealing tape is installed and fixed on two sides of a pipeline connector by applying pressure to the stainless steel double-expansion ring, so that the flexible connection with long-term and high-tightness performance is established at the joint. The invention adopts various materials and various processes to be combined, and the problem of water leakage of the sewage pipe network is solved systematically.
When the method for repairing the leaking water by adopting the sewage well cleaning and plugging construction is used for repairing the leaking water, the method comprises the following steps:
s11, washing the well wall by a high-pressure water gun; removing floating skin, loose objects and corroded materials. Dirty oil and various residues ensure the cleanness and firmness of the base layer.
Further, the roughness of the well wall is checked, and if the well wall is smooth, the surface roughening treatment is needed.
S12, chiseling the joint of the bilge well and the pipeline in a V shape by using an electric pick; wherein preferred, depth and width are 3cm, make things convenient for further leaking stoppage to handle, do not enlarge work load simultaneously.
And S13, drilling holes by adopting an electric hammer, embedding a water-stopping needle head in advance, and injecting water-soluble or oil-soluble polyurethane grouting into the gap from the water-stopping needle head through a high-pressure grouting machine. After polyurethane is poured into the sewage pipeline interface gap, the seepage-proofing and leakage-proofing capabilities are greatly improved, and the original rigid interface is a flexible interface with a certain degree.
And S14, cleaning the water-stopping needle head after checking that no leakage exists, and carrying out hole repairing by using a plugging material.
When the sewage pipe network is in a quicksand or soft soil layer, if the sealing of the joint gap fails, the quicksand soft soil around the pipeline permeates into the drainage pipeline from the gap. The soil around the pipeline and the sewage well is lost, the soil roadbed is unstable, the pipeline and the sewage well sink, and the road surface sinks.
Therefore, in the present invention, after drilling with the electric hammer in step S13, the method further includes:
s131, grouting and reinforcing soil outside the bilge well through a water stopping needle to form a water-proof curtain water stopping layer. Thereby solidifying the soil body around the sewage well and avoiding the road surface collapse caused by the loss of water and soil from the pipeline joint.
In order to prevent the wall of the sewage well from being not firm enough and being easy to leak water after aging for a long time, the invention also adds a process for reinforcing the inner wall of the sewage well after the water leakage at the joint is treated. The method comprises the following specific steps:
and S15, fixing the steel wire mesh on the well wall by stainless steel rivets.
Wherein the distance surface of the inner side of the reinforcing mesh is 1.5cm, and the diameter of the steel mesh is 4 mm. The fixing mode is stainless steel rivets, the steel bars are planted and anchored by epoxy resin, then the steel bar mesh is 5cm by 5cm square grids by using iron wires, and the steel bars are cold-drawn steel wires with the diameter of 4mm and are fastened to be firm.
And S16, spraying an inorganic anti-corrosion mortar protective layer when the upper surface of the well wall is wet but has no open water.
It should be noted that before the inorganic anti-corrosion mortar protective layer is sprayed, the base is required to be saturated with water. The surface is moist but not in a clear water state. Most of the closed sewer structures such as pipelines and inspection wells are in a water absorption saturation state, and if the structures are not used and water is dried for a period of time, the water is sprayed to fully pre-wet the base layer before mortar is sprayed. The job must touch the substrate with a finger before stopping the spray before the mortar spray. The substrate was confirmed to be moist but free of surface water. Mortar is strictly sprayed in the region with open water.
When the inorganic anti-corrosion mortar protective layer is sprayed, the anti-corrosion mortar layer is required to be firmly bonded with the structural layer substrate. The surface is flat, compact and hard, and has no obvious phenomena of protrusion, depression, hollowness, crack and the like.
In this embodiment, when the method for repairing the land curing pretreatment is adopted, the method comprises the following steps:
s21, adopting a grouting mode to consolidate the soft soil layer and the quicksand stratum around the deformed and collapsed part;
specifically, a small conduit grouting mode can be adopted to consolidate the soft soil layer and the quicksand layer around the deformed and collapsed part. The grouting material is modified epoxy resin or grouting liquid.
Crosslinking and consolidating soil around the pipeline, and after safety is confirmed, performing step S22 to cut the segment at the deformed and collapsed part;
s23, removing impurities such as soil bodies in pipelines at the collapse positions and recovering the space in the pipelines;
and S24, supporting and keeping the pipe position space by using a lining steel pipe piece.
After the land solidification pretreatment is finished, the pipe position of the pipeline collapse position is recovered, the original pipe position is a pipeline formed by combining steel pipe sheets, and the outer layer is a stable layer after soil body crosslinking solidification. Then the pipeline is desilted and washed.
In the pipeline dredging process, the water plugging air bag is adopted to plug the upstream and the downstream of the pipe section to be repaired, and the upstream pipe orifice and the downstream pipe orifice are firstly sealed when the pipeline is plugged. And (4) adopting a slurry pump to transfer the sewage of the upstream pipeline into the downstream pipeline.
And after the pipeline is cleaned, ultraviolet light is adopted for curing and repairing. The ultraviolet curing repair method comprises the following steps:
s25, pulling the glass fiber reinforced hose into a pipe section to be repaired; the hoses are mechanically produced, so that the defects of the hoses caused by human factors are reduced, and the quality is more reliable.
S26, inflating and expanding the hose to fit the inner wall of the pipeline; the thermosetting resin in the lining hose is unsaturated polyester, and has good corrosion resistance. The photo-initiator is added to the synthetic resin and reacts only to the irradiation of ultraviolet light. These photonic triggers generate groups upon exposure to conditions other than violet light, thereby triggering the polymerization process. I.e., polyester or polyvinyl ester chain clusters, cross-link with polyethylene in the chain clusters present in the resin, resulting in a cured resin matrix.
S27 and curing the hose under the action of ultraviolet light. Wherein, the lamp holder is provided with a camera. Therefore, the construction process is more convenient and faster, the curing speed is high, and the whole process is visible.
The ultraviolet curing repair can avoid the excavation workload caused by replacing the whole tube body, no wastewater is generated in the construction process, and the treatment of the repaired wastewater is avoided. Therefore, the construction environment and the social effect are good.
In this embodiment, when repairing leakage water by using the double-expansion-ring processing method, the method includes the following steps:
s31, cleaning the pipeline and cleaning the pipeline interface gap; and the water stopping treatment is carried out at the pipeline joint. Furthermore, a grouting mode can be adopted for water stopping treatment, the soil body at the pipeline interface is solidified through the grouting mode, and meanwhile a certain water stopping effect is achieved, so that the next repair and construction are facilitated.
Special attention is needed to be paid to completely cleaning up slag and sundries in the pipeline interface gap and reserving a clean surface for plugging the joint.
S32, filling the pipeline interface gap to be flush with the pipe wall; the parts of the two large-caliber pipelines to be in sealing contact are processed, so that the sealing lips can be completely and tightly attached.
Furthermore, the sealing part is cleaned by a dry brush, and the base layer is processed to be flat.
S33, sealing the pipeline connecting interface gap by a rubber sealing strip, wherein the rubber sealing strip is positioned at the pipe orifice end of two adjacent pipelines; wherein the rubber sealing strips must be placed exactly at the ends of the spout.
S34, placing the stainless steel retaining band in the annular groove of the rubber sealing band. In this embodiment, the stainless steel holding band is a curved steel band with an initial diameter smaller than the diameter of the pipe, so that the stainless steel holding band can be conveniently brought into the pipe for construction.
S35, applying pressure towards the bottom of the circular groove of the rubber seal ring to the stainless steel holding belt by using a special hydraulic expander; so as to expand the shape of the stainless steel holding belt to be more suitable for the pipeline interface, namely, the bending curvature of the stainless steel holding belt is pressed to be the same as or similar to the curvature of the pipeline, thereby fixing the stainless steel holding belt at the pipeline interface.
S35, plugging a steel wedge into the rubber sealing belt ring groove, specifically plugging the steel wedge or steel sheet into the gap between the adjacent end ports of the stainless steel holding belt; thereby enabling the stainless steel retaining band and steel wedge to form a complete retaining ring. Thereby further securing the stainless steel retaining band within the groove of the rubber sealing band.
Further, the steel wedge is also in a curved shape, and the curvature radius of the steel wedge is the same as the radius of the pipeline.
The process is a special hydraulic expansion device, the stainless steel double expansion rings are pressed, and a special high-strength water stop sealing tape is installed and fixed on two sides of a pipeline connector, so that the flexible connection with long-term and high-tightness performance is established at the seam.
Further, the step of judging the current water leakage condition of the sewage pipe network comprises the following steps:
and S41, plugging the upstream of the pipe section to be detected by adopting a water plugging air bag matched with the pipe diameter to be detected. If necessary, the downstream of the section to be tested is plugged.
S42, cleaning the pipeline in large flow and subsection mode by using a waterwheel; the flow of the waterwheel can reach more than 800 liters per hour under the condition of pressurizing and discharging water, and is more than four times of the flow of the general dredging water.
In specific practice, two persons can go down into the sewage well to feed the fire hose into the pipe together with the fire-fighting gun head, and the pipe is flushed after water is discharged and pressurized. The large-water-volume washing can make the reflux flow rate formed by the sediment be more than one meter per hour, thereby achieving the purpose of self-cleaning. While flushing, the fire hose is fed into the fire hose, and the fire hose is slowly pulled back after being flushed for several meters. The sand accumulated in the pipeline is cleaned up after the operation is repeated for a plurality of times, and the sewage flushed into the sewage well is pumped out of the well by a cutting pump for sedimentation.
The sludge suction of sludge and quicksand in the pipeline can be carried out by using a sewage pump without S43;
and S44, detecting by adopting a detection camera lens entering the detection pipeline. The advancing direction of the crawler where the detection camera lens is located is preferably consistent with the water flow direction.
When the tube diameter is not more than 200 mm, the moving speed of the straight direction photography is not more than 0.1 meter per hour. When the tube diameter is larger than 200 mm, the moving speed of the straight direction photography is not more than 0.15 meter per hour. Thereby ensuring the safety of the crawler and providing effective monitoring feedback.
Further, in step S44, the moving locus of the imaging lens is located on the axis of the duct. If offset, the preferred range of offset should not be greater than ten percent of the pipe diameter.
When the pipeline with a special shape is detected, the position of the camera is properly adjusted so as to obtain the best image.
The embodiments described above are some, but not all embodiments of the invention. The detailed description of the embodiments of the present invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Claims (10)
1. A construction method of a repairing system for leakage water of a sewage pipe network is characterized by comprising the following steps:
judging the current water leakage condition of the sewage pipe network;
repairing the leakage water by adopting a corresponding repairing method according to the leakage water condition; wherein:
when the leakage water is judged to be leakage water at the joint of the sewage well and the pipeline, repairing the leakage water by adopting a sewage well cleaning and leakage stopping construction repairing method;
when the water leakage is judged to be water leakage of a pipeline collapse part, repairing the water leakage by adopting a repairing method of land curing pretreatment, pipeline cleaning and ultraviolet curing repair;
and when the water leakage is judged to be water leakage at the pipe joints and water leakage caused by dislocation of large-diameter pipelines, repairing the water leakage by adopting a repairing method of double-expansion-ring treatment.
2. The method for repairing a water leakage in a sewage pipe network according to claim 1,
when the method for repairing the sewage well cleaning and plugging construction is used for repairing the leakage water, the method comprises the following steps:
s11, washing the well wall by a high-pressure water gun;
s12, chiseling the joint of the bilge well and the pipeline in a V shape by using an electric pick;
s13, drilling holes by adopting an electric hammer, embedding a water-stop needle head in advance, and grouting water-soluble or oil-soluble polyurethane to a gap by a high-pressure grouting machine;
and S14, cleaning the water-stopping needle head after checking that no leakage exists, and carrying out hole repairing by using a plugging material.
3. The method for repairing a water leakage in a sewage pipe network according to claim 2,
after drilling with the electric hammer in step S13, the method further includes:
s131, grouting and reinforcing soil outside the bilge well to form a waterproof curtain waterproof layer.
4. The method for repairing a water leakage in a sewage pipe network according to claim 1,
after the step S14, the method further comprises the step of reinforcing the inner wall of the sewage draining well:
s15, fixing the steel wire mesh on the well wall by stainless steel rivets;
and S16, spraying an inorganic anti-corrosion mortar protective layer when the upper surface of the well wall is wet but has no open water.
5. The method for repairing a water leakage in a sewage pipe network according to claim 1,
when the repairing method of land curing pretreatment is adopted, the method comprises the following steps:
s21, adopting a grouting mode to consolidate the soft soil layer and the quicksand stratum around the deformed and collapsed part;
s22, cutting the segment at the deformed and collapsed part;
s23, removing impurities at the collapse part and recovering the space in the pipeline;
and S24, supporting and keeping the pipe position space by using a lining steel pipe piece.
6. The method for repairing a water leakage in a sewage pipe network according to claim 5,
when the repairing method of ultraviolet curing repair is adopted, the method comprises the following steps:
s25, pulling the glass fiber reinforced hose into a pipe section to be repaired;
s26, inflating and expanding the hose to fit the inner wall of the pipeline;
s27 and curing the hose under the action of ultraviolet light.
7. The method for repairing a water leakage in a sewage pipe network according to claim 1,
when the double-expansion-ring processing method is adopted for repairing the leakage water, the method comprises the following steps:
s31, cleaning the pipeline and the pipeline interface gap, and carrying out water stop treatment at the pipeline interface;
s32, filling the pipeline interface gap to be flush with the pipe wall;
s33, sealing the pipeline connecting interface gap by a rubber sealing strip, wherein the rubber sealing strip is positioned at the pipe orifice end of two adjacent pipelines;
s35, applying pressure towards the bottom of the rubber seal belt ring groove to the stainless steel holding belt by using a special hydraulic expander so as to expand the bending curvature radius of the stainless steel holding belt to be the same as the curvature radius of the pipeline;
s35, a steel wedge is inserted between the adjacent stainless steel retaining band ports to form a complete retaining ring with the stainless steel retaining band.
8. The method for repairing a water leakage in a sewage pipe network according to claim 1,
the method for judging the current water leakage condition of the sewage pipe network comprises the following steps:
s41, plugging the upstream of the pipe section to be detected by a water plugging air bag matched with the pipe diameter to be detected;
s42, cleaning the pipeline in large flow and subsection mode by using a waterwheel;
s43, sucking mud from the sludge and the quicksand in the pipeline by using a sewage pump;
and S44, detecting by adopting a detection camera lens entering the detection pipeline.
9. The method for repairing a water leakage in a sewage pipe network according to claim 8,
in step S44, the movement locus of the imaging lens is located on the axis of the duct.
10. The method for repairing a water leakage in a sewage pipe network according to claim 1,
and when the water leakage is judged to be water leakage at the pipe joints and no joint error or separation condition exists between the pipe joints, repairing the water leakage by adopting a repairing method of filling and plugging water leakage gaps of the pipe joints in a grouting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895108.7A CN112049219A (en) | 2020-08-31 | 2020-08-31 | Construction method of repairing system for leakage water of sewage pipe network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010895108.7A CN112049219A (en) | 2020-08-31 | 2020-08-31 | Construction method of repairing system for leakage water of sewage pipe network |
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| CN112049219A true CN112049219A (en) | 2020-12-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112762269A (en) * | 2021-01-05 | 2021-05-07 | 江西省地质工程(集团)公司 | Construction method for repairing underground pipeline |
| CN113073722A (en) * | 2021-02-20 | 2021-07-06 | 中国港湾工程有限责任公司 | Demolishing and backfilling integrated device suitable for underground flexible pipeline and working method thereof |
| CN113653157A (en) * | 2021-08-16 | 2021-11-16 | 广东楠通建设工程有限公司 | Grouting repair method for inner wall of municipal rainwater and sewage pipeline |
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| CN113653157A (en) * | 2021-08-16 | 2021-11-16 | 广东楠通建设工程有限公司 | Grouting repair method for inner wall of municipal rainwater and sewage pipeline |
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