CN111535425A - Underground drainage pipe leakage repairing construction method - Google Patents
Underground drainage pipe leakage repairing construction method Download PDFInfo
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- CN111535425A CN111535425A CN202010396005.6A CN202010396005A CN111535425A CN 111535425 A CN111535425 A CN 111535425A CN 202010396005 A CN202010396005 A CN 202010396005A CN 111535425 A CN111535425 A CN 111535425A
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
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Abstract
The invention relates to the technical field of drain pipe repair, in particular to a construction method for repairing the leakage of an underground drain pipe, which comprises the following steps of 1), carrying out flaw detection on the underground drain pipe; step 2), excavating on the ground corresponding to the leakage position of the underground drainage pipe until the leakage position of the pipe body is exposed; step 3), coating a liquid pipeline repairing composition on a leakage position of the pipe body; step 4), after the pipeline repairing composition is solidified, introducing water into the underground drainage pipe, and detecting whether leakage exists or not; step 5), if leakage exists in the step 4), coating the liquid pipeline repairing composition again for repairing; and 6), after the underground drainage pipe is repaired, backfilling mixed soil into the excavated pit to repair the pavement, wherein the mixed soil comprises rubber particles and soil. The invention has the effects that the vibration impact is absorbed by the rubber particles, the repaired underground drainage pipe is not easy to be damaged again due to physical impact, and the repairing frequency is effectively reduced.
Description
Technical Field
The invention relates to the technical field of drain pipe repair, in particular to a leakage repair construction method for an underground drain pipe.
Background
At present, along with the development of human civilization, people are more and more frequent to the utilization of water resource, lead to that the water supply is all great with the displacement, need carry out the water conservancy diversion through the underground drainage pipe, through the mode of concentrated drainage in order to guarantee drainage effect, reduce the condition that the in-process of drainage produced the influence to people's living environment.
The existing underground drainage pipe usually comprises a plastic pipe, a metal pipe and a concrete pipe, when the underground drainage pipe is buried underground for a long time, the plastic pipe can be degraded, the metal pipe can be corroded, the concrete pipe can be concentrated in stress and cracked, and various damages are caused, so that the underground drainage pipe is leaked, and the underground drainage pipe needs to be repaired.
When mending the underground drainage pipe, can adopt epoxy to mend underground drainage pipe leakage department usually, mend the back through epoxy, can effectively alleviate the condition of seepage.
The above prior art solutions have the following drawbacks:
however, the joint face of the leakage position of the epoxy resin and the underground drainage pipeline becomes a weak point, because the underground drainage pipeline is buried underground, vibration impact can be generated when ground vehicles run and personnel walk, the impact force impacts the weak point, the underground drainage pipeline is easily damaged again at the repaired joint face, the leakage occurs again, the repairing frequency is high, and therefore, the improvement space is provided.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a construction method for repairing the leakage of an underground drainage pipe, which has the effects of higher and stable repairing and lower repairing frequency.
The above object of the present invention is achieved by the following technical solutions:
a construction method for repairing leakage of underground drainage pipes comprises the following steps:
step 1), carrying out flaw detection on an underground drainage pipe;
step 2), excavating on the ground corresponding to the leakage position of the underground drainage pipe until the leakage position of the pipe body is exposed;
step 3), coating a liquid pipeline repairing composition on a leakage position of the pipe body;
step 4), after the pipeline repairing composition is solidified, introducing water into the underground drainage pipe, and detecting whether leakage exists or not;
step 5), if leakage exists in the step 4), coating the liquid pipeline repairing composition again for repairing;
and 6), after the underground drainage pipe is repaired, backfilling mixed soil into the excavated pit to repair the pavement, wherein the mixed soil comprises rubber particles and soil.
By adopting the technical scheme, the mixed soil is backfilled during backfilling, so that the rubber particles are doped in the soil wrapping the leakage position of the underground drainage pipe, the vibration impact generated in the processes of walking of people on the ground and walking of vehicles is absorbed by the rubber particles, the vibration impact is not easy to influence the underground drainage pipe, the repaired underground drainage pipe is not easy to be damaged again due to physical impact, and the repairing frequency is effectively reduced;
the drain pipe is subjected to flaw detection firstly and then is precisely excavated, so that the excavation area is well controlled in a proper range during excavation, large-area excavation is not needed, the construction cost is reduced, and the construction efficiency is improved;
through the water-through of orientation underground drainage pipe whether there is the seepage in order to detect underground drainage pipe, guarantee the effect preferred of repairing, avoid repairing incompletely and lead to the condition of continuation seepage.
The present invention in a preferred example may be further configured to: in the step 6), the mass ratio of the rubber particles in the mixed soil to the soil is 1: 15.
through adopting above-mentioned technical scheme, through the mass ratio of control rubber granule and soil for the effect that absorbs the vibrations and assaults is preferred, effective control cost simultaneously.
The present invention in a preferred example may be further configured to: in the step 6), glass fiber is also added into the mixed soil.
Through adopting above-mentioned technical scheme, through adding glass fiber in the soil mixture, utilize glass fiber restriction soil and rubber granules motion, effectively reduce soil to the extrusion of underground drainage pipe for during the extrusion is preferred to be transmitted to rubber granules, thereby effectively utilize rubber granules buffering road surface pressure, reduce the physical influence to underground drainage pipe, make underground drainage pipe repair department difficult damaged once more, effectively reduce the repair frequency.
The present invention in a preferred example may be further configured to: in the step 6), the mass ratio of the glass fiber in the mixed soil to the soil is 1: 30.
through adopting above-mentioned technical scheme, through the quality proportion of control glass fiber and soil for the effect of restriction soil and rubber granule motion is preferred, effective control cost simultaneously.
The present invention in a preferred example may be further configured to: the pipeline repairing composition comprises the following components in parts by weight:
100 parts of polypropylene;
1-3 parts of cobalt salt;
3-5 parts of a silane coupling agent.
By adopting the technical scheme, the polypropylene is used as the main material, the pipeline repairing composition can be coated on the leakage position of the pipe body by a hot melting method when the pipeline is repaired, and can be solidified by natural cooling, so that the curing time is short, the repairing efficiency is high, the chemical corrosion resistance of the polypropylene is better, the polypropylene is not easy to be corroded by chemical substances and damaged, and the repairing effect is durable and stable;
by adding cobalt salt into polypropylene, the bonding force between the polypropylene and a metal substance is effectively increased, so that the pipeline repairing composition is better suitable for repairing a metal pipeline;
by adding the silane coupling agent into the polypropylene, the bonding force between the polypropylene and the inorganic substance is effectively increased, so that the pipeline repairing composition is better suitable for repairing concrete pipelines, and the applicability of the pipeline repairing composition is wider.
The present invention in a preferred example may be further configured to: the pipeline repairing composition also comprises the following components in parts by mass:
10-15 parts of polyisobutylene;
5-8 parts of polyvinyl acetate.
By adopting the technical scheme, the polyisobutene, the polyvinyl acetate and the polypropylene are added into the pipeline repairing composition to be matched, so that the embrittlement temperature of the polypropylene is effectively reduced, the repairing composition is more stable in a low-temperature environment, the physical property is not easy to greatly reduce, an underground drainage pipe is stably repaired in a cold environment, and the condition of leakage is reduced.
The present invention in a preferred example may be further configured to: the pipeline repairing composition also comprises the following components in parts by mass:
1-2 parts of carbon fiber;
1-2 parts of silicon dioxide.
By adopting the technical scheme, the tensile strength of the pipeline repairing composition is effectively improved by adding the carbon fibers into the pipeline repairing composition, and the compressive strength of the pipeline repairing composition is effectively improved by adding the silicon dioxide into the pipeline repairing composition, so that the pipeline repairing composition has better physical properties, can repair the leakage part of an underground drainage pipe more stably, and has more stable and lasting repairing effect.
The present invention in a preferred example may be further configured to: the preparation method of the pipeline repairing composition comprises the following steps:
step 01), crushing polypropylene into particles with the particle size of 1mm or less;
step 02), uniformly mixing the polypropylene particles, the cobalt salt and the silane coupling agent to form a premix;
step 03), heating the premix to 170-;
and 04) cooling and granulating the mixture to form the pipeline repairing composition.
By adopting the technical scheme, the polypropylene is crushed and then uniformly mixed with the cobalt salt and the silane coupling agent, and then heated and stirred, so that the components are more easily and uniformly dispersed in the molten state of the polypropylene, the thermal history of the polypropylene is reduced, and the quality of the pipeline repairing composition is better.
The present invention in a preferred example may be further configured to: in the step 01), polyisobutylene, polyvinyl acetate and polypropylene are crushed into particles with the particle size of 1mm or less;
polyisobutylene particles, polyvinyl acetate particles, carbon fibers and silicon dioxide are also added in the step 02).
By adopting the technical scheme, the pipeline repairing composition has the advantages of good tensile strength, good compressive strength, good chemical corrosion resistance, brittle temperature at the bottom of intersection and good quality.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the mixed soil is backfilled during backfilling, so that the rubber particles are doped in the soil wrapping the leakage position of the underground drainage pipe, vibration impact generated in the processes of walking of people on the ground and walking of vehicles is absorbed by the rubber particles, the vibration impact is not easy to influence the underground drainage pipe, the repaired underground drainage pipe is not easy to damage again due to physical impact, and the repairing frequency is effectively reduced;
2. by adding the glass fiber into the mixed soil and limiting the movement of the soil and the rubber particles by using the glass fiber, the extrusion of the soil to the underground drainage pipe is effectively reduced, so that the extrusion is preferentially transmitted to the rubber particles, the road surface pressure is effectively buffered by using the rubber particles, the physical influence on the underground drainage pipe is reduced, the repaired part of the underground drainage pipe is not easily damaged again, and the repairing frequency is effectively reduced;
3. by adopting the polypropylene as the main material of the pipeline repairing composition, the pipeline repairing composition can be coated on the leakage part of the pipe body by a hot melting method during pipeline repairing, and can be solidified by natural cooling, so that the curing time is short, the repairing efficiency is high, the chemical corrosion resistance of the polypropylene is better, the polypropylene is not easy to be corroded by chemical substances and damaged, and the repairing effect is lasting and stable.
Drawings
FIG. 1 is a schematic flow diagram of a method of preparing a pipe repair composition according to the present invention;
FIG. 2 is a schematic flow chart of the construction method for repairing the leakage of the underground drainage pipe.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The information on the sources of the components used in the following examples and comparative examples is shown in Table 1
TABLE 1
Examples 1 to 4
A pipe repair composition comprising the following components:
polypropylene, cobalt salt and silane coupling agent.
In examples 1-4, the amounts (in Kg) of the ingredients added are specified in Table 2
TABLE 2
| Example 1 | Example 2 | Example 3 | Example 4 | |
| Polypropylene | 100 | 100 | 100 | 100 |
| Cobalt salt | 1 | 2 | 3 | 2.5 |
| Silane coupling agent | 3 | 4 | 5 | 4.5 |
Referring to fig. 1, the method of preparing the pipe repair compositions of examples 1-4 includes the steps of:
step 01), putting the polypropylene into crushing equipment, and crushing the polypropylene into particles with the particle size of 1 mm;
step 02), adding the polypropylene particles, the cobalt salt and the silane coupling agent into a stirring kettle, stirring for 3min at the rotating speed of 120r/min, and uniformly mixing to form a premix;
step 03), heating the premix to 175 ℃, rotating at the speed of 80r/min, and continuously stirring for 3min to uniformly disperse the components to form a mixture;
and 04) discharging the mixture out of the screw extruder, extruding the mixture into an underwater pelletizer through the screw extruder, and cooling and pelletizing through the underwater pelletizer to form the granular pipeline repairing composition.
Example 5
A pipe repair composition which differs from example 4 only in that:
in the step 01), crushing polypropylene into granules with the grain size of 0.5 mm;
in step 03), the premix is heated to 170 ℃.
Example 6
A pipe repair composition which differs from example 4 only in that:
in the step 01), crushing polypropylene into granules with the grain size of 0.5 mm;
in step 03), the premix is heated to 180 ℃.
Examples 7 to 10
A pipe repair composition which differs from example 4 only in that:
also comprises the following components:
polyisobutylene and polyvinyl acetate.
In examples 7-10, the amounts (in Kg) of the ingredients added are specified in Table 3
TABLE 3
| Example 7 | Example 8 | Example 9 | Example 10 | |
| Polypropylene | 100 | 100 | 100 | 100 |
| Cobalt salt | 2.5 | 2.5 | 2.5 | 2.5 |
| Silane coupling agent | 4.5 | 4.5 | 4.5 | 4.5 |
| Polyisobutenes | 10 | 12.5 | 15 | 13 |
| Polyvinyl acetate | 5 | 6.5 | 8 | 7 |
In the step 01), the polyisobutylene, the polyvinyl acetate and the polypropylene are crushed into particles with the particle size of 1 mm;
in the step 02), polyisobutylene particles, polyvinyl acetate particles, polypropylene particles, cobalt salt and a silane coupling agent are added into a stirring kettle and uniformly stirred.
Examples 11 to 14
A pipe repair composition which differs from example 4 only in that:
also comprises the following components:
carbon fibers, silica.
For examples 11-14, the amounts of each component (in Kg) added are specified in Table 4.
TABLE 4
| Example 11 | Example 12 | Example 13 | Example 14 | |
| Polypropylene | 100 | 100 | 100 | 100 |
| Cobalt salt | 2.5 | 2.5 | 2.5 | 2.5 |
| Silane coupling agent | 4.5 | 4.5 | 4.5 | 4.5 |
| Carbon fiber | 1 | 1.5 | 2 | 1.8 |
| Silicon dioxide | 1 | 1.5 | 2 | 1.6 |
In the step 02), the carbon fiber, the silicon dioxide, the polypropylene particles, the cobalt salt and the silane coupling agent are added into a stirring kettle and stirred uniformly.
Examples 15 to 18
A pipe repair composition which differs from example 4 only in that:
also comprises the following components:
polyisobutylene, polyvinyl acetate, carbon fiber and silicon dioxide.
For examples 15-18, the amounts of each component (in Kg) added are specified in Table 5.
TABLE 5
| Example 11 | Example 12 | Example 13 | Example 14 | |
| Polypropylene | 100 | 100 | 100 | 100 |
| Cobalt salt | 2.5 | 2.5 | 2.5 | 2.5 |
| Silane coupling agent | 4.5 | 4.5 | 4.5 | 4.5 |
| Polyisobutenes | 10 | 12.5 | 15 | 13 |
| Polyvinyl acetate | 5 | 6.5 | 8 | 7 |
| Carbon fiber | 1 | 1.5 | 2 | 1.8 |
| Silicon dioxide | 1 | 1.5 | 2 | 1.6 |
In the step 01), the polyisobutylene, the polyvinyl acetate and the polypropylene are crushed into particles with the particle size of 1 mm;
in the step 02), polyisobutylene particles, polyvinyl acetate particles, carbon fibers, silicon dioxide, polypropylene particles, cobalt salt and a silane coupling agent are added into a stirring kettle and stirred uniformly.
Example 19
Referring to fig. 2, the underground drainage pipe leakage repairing construction method disclosed by the invention comprises the following steps:
step 1), scanning and detecting the flaw of the underground drainage pipe by an ultrasonic flaw detector to determine the damaged and leaked part of the underground drainage pipe;
step 2), excavating on the ground corresponding to the leakage position of the underground drainage pipe through an excavator until the leakage position of the pipe body is completely exposed;
step 3), heating and melting the pipeline repairing composition, and then coating the pipeline repairing composition on a leakage position of a pipe body;
step 4), cooling and solidifying the pipeline repairing composition to form a pipeline repairing layer, then introducing water into the underground drainage pipe, and detecting whether leakage exists at the joint of the pipeline repairing layer and the underground drainage pipe;
step 5), if leakage exists in the step 4), coating the melted pipeline repairing composition again for repairing;
and 6), after the underground drainage pipe is repaired, backfilling mixed soil into the excavated pit, and compacting to finish pavement repair.
In the embodiment, the mixed soil is prepared by mixing rubber particles and soil according to the mass ratio of 1: 15 are compounded.
The pipe repair composition of example 18 was used in this example, and the pipe repair compositions of examples 1-17 were also used in other examples.
Example 20
Compared with the embodiment 19, the underground drainage pipe leakage repairing construction method has the following differences:
the mixed soil is prepared from rubber particles, glass fibers and soil according to the mass ratio of 1: 0.5: 15 are compounded.
Comparative example 1
Compared with example 4, the difference is only that:
in the step 2), polypropylene is used for replacing cobalt salt in an equal amount.
Comparative example 2
Compared with example 4, the difference is only that:
in the step 2), polypropylene is used for replacing the silane coupling agent in an equal amount.
Comparative example 3
Compared with example 10, the difference is only that:
in the step 1) and the step 2), polypropylene is adopted to replace polyisobutylene in equal amount.
Comparative example 4
Compared with example 10, the difference is only that:
in the step 1) and the step 2), polypropylene is adopted to replace polyvinyl acetate in equal amount.
Experiment 1
The embrittlement temperature of the test specimens prepared from the pipe repair compositions of examples 1 to 18 and comparative examples was determined in accordance with GB/T5470-2008 "determination of embrittlement temperature by Plastic impact method".
Experiment 2
Part 3 of the determination of mechanical Properties of roving-reinforced resin rods for textile glass fiber-reinforced plastics according to GB/T14208.3-2009: measurement of compressive Strength the compressive strength of the test specimens prepared from the pipe repair compositions of examples 1 to 18 and comparative examples was measured.
Experiment 3
The tensile strength of the test specimens prepared from the pipe repair compositions of examples 1 to 18 and comparative examples was tested according to GB/T528-2009 determination of tensile stress strain Properties of vulcanizates or thermoplastic rubbers.
Experiment 4
The peel strength of the samples prepared from the pipe repair compositions of examples 1 to 18 and comparative examples was measured according to GB/T2790-1995 "adhesive 180 ℃ peel strength test method to rigid material", wherein the flexible adhered test piece was a vulcanized rubber sheet, and the rigid adhered test piece was a stainless steel sheet and a concrete sheet.
The specific assay data are detailed in table 6.
TABLE 6
According to the comparison of the data of comparative example 1 and example 4 in table 6, the cobalt salt is added to the pipe repairing composition, which effectively improves the peel strength between polypropylene and stainless steel metal, so that the adhesive stability is better, and the metal pipe is repaired stably.
According to the comparison of the data of comparative example 1 and example 4 in table 6, the silane coupling agent is added to the pipeline repairing composition, so that the peel strength between polypropylene and concrete is effectively improved, the bonding stability is better, and the concrete pipeline is repaired stably.
According to the comparison of the data of comparative examples 3 and 4 and examples 7 to 10 in table 6, polyisobutylene or polyvinyl acetate added into the pipeline repairing composition alone has no obvious negative effect on the brittle temperature of polypropylene, and when polyisobutylene and polyvinyl acetate are mixed with polypropylene in a specific ratio, the brittle temperature of the pipeline repairing composition is effectively reduced, so that the pipeline repairing composition can be kept stable in a low-temperature environment after being repaired, brittle cracking is not easy to occur, and the applicability is wide.
According to the comparison of the data of examples 11 to 14 and example 4 in table 6, the carbon fiber and the silica are added to the pipe repairing composition, so that the tensile strength and the compressive strength of the pipe repairing composition are effectively improved, and the pipe repairing composition has better structural stability, better repairing effect and longer duration.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A construction method for repairing the leakage of an underground drainage pipe is characterized by comprising the following steps: the method comprises the following steps:
step 1), carrying out flaw detection on an underground drainage pipe;
step 2), excavating on the ground corresponding to the leakage position of the underground drainage pipe until the leakage position of the pipe body is exposed;
step 3), coating a liquid pipeline repairing composition on a leakage position of the pipe body;
step 4), after the pipeline repairing composition is solidified, introducing water into the underground drainage pipe, and detecting whether leakage exists or not;
step 5), if leakage exists in the step 4), coating the liquid pipeline repairing composition again for repairing;
and 6), after the underground drainage pipe is repaired, backfilling mixed soil into the excavated pit to repair the pavement, wherein the mixed soil comprises rubber particles and soil.
2. The underground drain pipe leakage repair construction method according to claim 1, characterized in that: in the step 6), the mass ratio of the rubber particles in the mixed soil to the soil is 1: 15.
3. the underground drain pipe leakage repair construction method according to claim 2, characterized in that: in the step 6), glass fiber is also added into the mixed soil.
4. The underground drain pipe leakage repair construction method according to claim 3, characterized in that: in the step 6), the mass ratio of the glass fiber in the mixed soil to the soil is 1: 30.
5. the underground drain pipe leakage repair construction method according to claim 1, characterized in that: the pipeline repairing composition comprises the following components in parts by weight:
100 parts of polypropylene;
1-3 parts of cobalt salt;
3-5 parts of a silane coupling agent.
6. The underground drain pipe leakage repair construction method according to claim 5, characterized in that: the pipeline repairing composition also comprises the following components in parts by mass:
10-15 parts of polyisobutylene;
5-8 parts of polyvinyl acetate.
7. The underground drain pipe leakage repair construction method according to claim 5, characterized in that: the pipeline repairing composition also comprises the following components in parts by mass:
1-2 parts of carbon fiber;
1-2 parts of silicon dioxide.
8. The underground drain pipe leakage repair construction method according to claim 5, characterized in that: the preparation method of the pipeline repairing composition comprises the following steps:
step 01), crushing polypropylene into particles with the particle size of 1mm or less;
step 02), uniformly mixing the polypropylene particles, the cobalt salt and the silane coupling agent to form a premix;
step 03), heating the premix to 170-;
and 04) cooling and granulating the mixture to form the pipeline repairing composition.
9. The underground drain pipe leakage repair construction method according to claim 8, wherein: in the step 01), polyisobutylene, polyvinyl acetate and polypropylene are crushed into particles with the particle size of 1mm or less;
polyisobutylene particles, polyvinyl acetate particles, carbon fibers and silicon dioxide are also added in the step 02).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112709884A (en) * | 2020-12-23 | 2021-04-27 | 韶关市华源水电建设有限公司 | Rural water-saving water supply engineering reconstruction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207486327U (en) * | 2017-11-29 | 2018-06-12 | 北京市市政工程研究院 | A kind of device of quick reparation underground piping leakage |
| CN109837948A (en) * | 2019-02-18 | 2019-06-04 | 中国化学工程第三建设有限公司 | The method of buried underground piping repairing with pressure |
| CN110106960A (en) * | 2019-06-06 | 2019-08-09 | 广东隆建工程有限公司 | Sewage conduct construction method |
| CN110185003A (en) * | 2019-06-06 | 2019-08-30 | 广东隆建工程有限公司 | Municipal water supply pipeline construction method |
| CN110512709A (en) * | 2019-08-20 | 2019-11-29 | 广州鸿粤园林环保有限公司 | Trenchless repairing method of underground pipeline |
| CN110748741A (en) * | 2019-10-23 | 2020-02-04 | 广东穗都建筑工程有限公司 | Leakage repairing method for house drain pipe |
-
2020
- 2020-05-12 CN CN202010396005.6A patent/CN111535425A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207486327U (en) * | 2017-11-29 | 2018-06-12 | 北京市市政工程研究院 | A kind of device of quick reparation underground piping leakage |
| CN109837948A (en) * | 2019-02-18 | 2019-06-04 | 中国化学工程第三建设有限公司 | The method of buried underground piping repairing with pressure |
| CN110106960A (en) * | 2019-06-06 | 2019-08-09 | 广东隆建工程有限公司 | Sewage conduct construction method |
| CN110185003A (en) * | 2019-06-06 | 2019-08-30 | 广东隆建工程有限公司 | Municipal water supply pipeline construction method |
| CN110512709A (en) * | 2019-08-20 | 2019-11-29 | 广州鸿粤园林环保有限公司 | Trenchless repairing method of underground pipeline |
| CN110748741A (en) * | 2019-10-23 | 2020-02-04 | 广东穗都建筑工程有限公司 | Leakage repairing method for house drain pipe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112709884A (en) * | 2020-12-23 | 2021-04-27 | 韶关市华源水电建设有限公司 | Rural water-saving water supply engineering reconstruction method |
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