CN112921842A - Water-stopping and leaking-stopping construction method for concrete culvert pipe - Google Patents
Water-stopping and leaking-stopping construction method for concrete culvert pipe Download PDFInfo
- Publication number
- CN112921842A CN112921842A CN202110108638.7A CN202110108638A CN112921842A CN 112921842 A CN112921842 A CN 112921842A CN 202110108638 A CN202110108638 A CN 202110108638A CN 112921842 A CN112921842 A CN 112921842A
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- Prior art keywords
- stopping
- water
- leaking
- construction method
- culvert pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
- E01F5/005—Culverts ; Head-structures for culverts, or for drainage-conduit outlets in slopes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
- E02D31/04—Watertight packings for use under hydraulic pressure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D37/00—Repair of damaged foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0001—Rubbers
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0006—Plastics
- E02D2300/0014—PU
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
Abstract
The invention provides a concrete culvert pipe water-stopping and leaking-stopping construction method, which comprises the steps of firstly determining the position of a leaking point, checking the environment of a construction site, ensuring the construction safety, then cleaning and polishing a joint where the leaking point is located, and filling a water-stopping strip in the joint; during construction, inclined holes are arranged at intervals along the seams and penetrate through the seams; installing a grouting nozzle in the inclined hole, and injecting a plugging material into the grouting nozzle by a grouting pump until the grouting is not carried out; and finally, paving a water stop belt on the surface of the joint. The construction method provided by the invention is easy to implement, has a good plugging effect, good stability of the plugging material after molding, and a good water-blocking effect, can effectively prolong the service life of the water delivery culvert pipe, and saves investment.
Description
Technical Field
The invention belongs to the technical field of pipeline engineering construction, and particularly relates to a water-stopping and leaking-stopping construction method for a concrete culvert pipe.
Background
The concrete circular culvert pipe, the square culvert pipe and the special-shaped culvert pipe are often used in the construction fields of water delivery, underground cable crossing, urban pipe corridors and the like, the culvert pipe is easy to generate the phenomena of leakage, overflow, dripping and leakage at an expansion joint and a joint after being used for a long time, so that the use of the culvert pipe is influenced.
Disclosure of Invention
In view of the above, the present invention provides a construction method for water-stopping and leaking-stopping of a concrete culvert, which aims to overcome the defects in the prior art, and repair the leakage, the overflow, the dripping and the leaking of the culvert pipe, so that the joint of the culvert pipe is effectively closed, the contact between the culvert pipe and the outside is isolated, the service life of the culvert pipe is prolonged, and the construction method is suitable for the leaking-stopping construction of circular, square and special-shaped culvert pipes with the caliber of more than 1 meter.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a construction method for stopping water and plugging concrete culvert pipes comprises the following steps:
s1, determining the position of the leaking point, and checking the construction site environment;
s2, cleaning and polishing joints where leak points are located, filling water stop strips in the joints, arranging exhaust nozzles at intervals along the joints, wherein one ends of the exhaust nozzles extend into the joints, and the other ends of the exhaust nozzles are exposed out of the joints;
s3, plugging the periphery of the exhaust nozzle by using a plugging agent;
s4, arranging inclined holes at intervals along the seam, wherein the inclined holes penetrate through the seam;
s5, installing a grouting nozzle in the inclined hole, and injecting plugging materials into the grouting nozzle by a grouting pump until grouting is not performed;
s6, cleaning the plugging agent, and replacing polysulfide glue for sealing;
and S7, laying a water stop belt on the surface of the joint.
Further, the water stop strip is a rubber water stop strip which is 30mm thick and expands when meeting water.
Further, the exhaust nozzles are buried along the seams at intervals of 500 mm.
Furthermore, the upper end opening of the inclined hole is positioned at one side of the seam, and the lower end of the inclined hole extends into the side wall at the other side of the seam.
Further, the inclined holes are arranged every 1m along the seam.
Furthermore, two sides of the water stop belt are fixed by fixing plates respectively, holes are drilled in two sides of the joint respectively, and the fixing plates are fixed on two sides of the joint through connecting pieces respectively; meanwhile, silicone building sealant is smeared on two sides of the fixing plate to stop water.
Further, the connecting piece adopts stainless steel expansion bolts.
Further, the fixed plate is made of a stainless steel plate.
Further, the plugging material is a polyurethane grouting water-stop material.
Furthermore, an angle of 45 degrees is formed between the inclined hole and the seam.
Compared with the prior art, the invention has the following advantages:
the construction method provided by the invention is easy to implement and has a good plugging effect, plugging materials injected into the inclined holes are injected into the joints, and side wings are formed in the inclined holes on two sides of the joints, so that the construction method has good stability and a good water blocking effect, the service life of the water delivery culvert pipe can be effectively prolonged, and the investment is saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
FIG. 1 is a schematic view of the outside of a seam in an embodiment of the invention;
FIG. 2 is a schematic view of a sealing structure at a seam in an embodiment of the present invention;
fig. 3 is a schematic view of a seam plugging structure when a guide hole is formed in the embodiment of the present invention.
Description of reference numerals:
1-water stop strip; 2-an exhaust nozzle; 3-polysulfide glue; 4-inclined hole; 5-water stop belt; 6, fixing a plate; 7-a rubber press plate; 8-a connector; 9-guide hole.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
A construction method for stopping water and plugging a concrete culvert pipe utilizes plugging materials to form a plugging structure at a joint, as shown in figures 1 to 3, and comprises the following steps:
s1, determining the position of the leaking point, checking the construction site environment and ensuring safe construction; namely, the following safety work is done before the person enters the pipe, and the construction can be performed.
Specifically, after the construction of advancing the field, need at first fully understand the inside and outside condition of culvert pipe, like the water level condition of culvert pipe trip, velocity of water flow and the interior circulation of air condition of culvert pipe etc. organize earlier that the personnel carries out the installation of scaffold frame manger plate facility with culvert pipe both sides 50 meters outward respectively and consolidate, and the water cloth that keeps off is spread on, carries out the intraductal surplus water of culvert again after blocking the both sides water source and takes out except that, advances to select natural draft or fan air supply mode to ensure airtight space construction safety according to the empty gas detection condition before the construction of culvert pipe. And (4) checking the leakage condition of the expansion joint, making a record, and performing construction treatment of water stopping and leakage stopping after all preparation works are finished.
S2, cleaning and polishing the joints where the leak points are located, wherein the joints are collectively called as joints in the application and actually comprise various joints and expansion joints.
The joint preformed groove is filled with a water stop strip 1, and the water stop strip is a rubber water stop strip which is 30mm thick and expands when meeting water. The exhaust nozzles 2 are arranged at intervals along the seam, one end of each exhaust nozzle extends into the seam, and the other end of each exhaust nozzle is exposed out of the seam; typically, the exhaust nozzles are embedded every 500mm along the seam.
S3, rapidly plugging the periphery of the exhaust nozzle by using a plugging agent;
s4, arranging oblique holes 4 at intervals along the seam, wherein the oblique holes penetrate through the seam, and for example, every 1m are arranged along the seam. Typically, the angled holes are disposed at a 45 angle to the seam. The upper end opening of the inclined hole is positioned at one side of the seam, and the lower end of the inclined hole extends into the side wall at the other side of the seam. The plugging material can be polyurethane water-stopping material.
In an alternative embodiment, a guide hole 9 is obliquely and downwardly arranged on one side of the joint different from the opening of the inclined hole, is arranged corresponding to the lower end of the inclined hole (i.e. the guide hole is arranged corresponding to the bottom of the inclined hole in the side wall of the inclined hole on the other side of the joint), and is communicated with the inclined hole, and preferably, the joint of the guide hole and the inclined hole forms a T-shaped structure. When the grouting nozzle is used for injecting plugging materials, the guide hole serves as an exhaust hole, the bottom of the inclined hole is guaranteed to be tightly injected, meanwhile, as the guide hole is communicated with the inclined hole, the plugging materials entering the guide hole can be formed with the plugging materials in the joint and the inclined hole at the same time, the formed plugging structure forms 'side wings' in the inclined hole and the guide hole respectively, and the plugging materials in the inclined hole and the guide hole and the plugging materials in the joint are of an integrally formed structure, so that the joint plugging is more stable and tight, the firmness is high, the stability is good, the sealing performance is good, the durability is good, and the problem that leakage is easy to occur again after plugging in the prior art is solved.
It should be noted that, when plugging materials are injected, if materials overflow from the guide holes, the upper ends of the guide holes can be sealed, and it is ensured that the plugging materials in the joints and the inclined holes are tightly pressed and injected. Of course, the guide holes do not have to be filled with plugging material, as long as the inclined holes on the side of the joint can be extended to ensure that the plugging material on the two sides of the joint forms a "flank" structure for assisting the sealing function and the reinforcing function.
S5, installing a grouting nozzle in the inclined hole, and injecting plugging materials into the grouting nozzle by a grouting pump until grouting is not performed; the grouting nozzle adopts a grouting nozzle (namely a water stop needle) with a one-way structure design, injection is carried out by a grouting pump until slurry is not injected, and in the grouting process, whether the pumping pressure gauge reaches the maximum pressure (generally 0.8Mpa) or not and the condition of visual water leakage of the expansion joint are observed to judge the grouting effect.
It should be noted that after the polyurethane material is in the field, the polyurethane material must be inspected for batches of certification and reporting materials, and sampled for inspection. Whether the appearance of the coating is uniform and free of impurities and delamination is not detected. Taking proper polyurethane material and on-site water source to carry out mixing test, recording the solidification time and expansion calculation data, comparing the data of the inspection report to ensure the consistency, or else, replacing. And whether all grouting nozzle sealing rings are intact, whether the fastening bolts are flexible, whether the self-sealing balls of the grouting nozzles rebound flexibly, and timely replacement which does not meet requirements is carried out.
And S6, cleaning the plugging agent, and replacing the polysulfide glue 3 for sealing. In the construction process, the polysulfide glue is replaced and smeared after all the plugging agents need to be cleaned, the seams are smeared uniformly and compactly, the smeared surfaces are parallel and level to the seams, and the defects of no sand holes, air holes and the like are ensured.
And S7, laying water stop belts 5 on the surfaces of the joints.
The sealing rubber strip is firmly filled along the expansion joint, the plugging agent is required to be uniformly and compactly coated on the surface of the joint and is compactly combined with the periphery of the exhaust nozzle, the sealing needle is embedded in the drilling process and drilled at an angle of 45 degrees with the joint, and the hole is drilled through the joint.
Stop to strike the slip casting mouth when placing the stagnant water needle in the drilling, use small-size borer to tap the needle body both sides non-sealing area, use the sleeve pipe spanner fastening needle mouth after target in place, make the sealed department inflation of bottom reach the leak protection effect, the fastening process forbids excessively to twist and causes the stagnant water needle to damage. The grouting process is carried out at a constant speed, the grouting pressure is closely concerned, the grouting is stopped when the grouting pressure reaches 0.8Mpa, the water leakage condition is checked, and if no water leakage exists, the next grouting is continued.
In an alternative embodiment, two sides of the water stop band are respectively fixed by fixing plates 6, two sides of the joint are respectively drilled with holes, and the fixing plates are respectively fixed on two sides of the joint through connecting pieces; meanwhile, silicone building sealant is smeared on two sides of the fixing plate to stop water. The connecting piece adopts stainless steel expansion bolts. The fixed plate is made of stainless steel plate.
In a further improved scheme, a layer of rubber pressing plate 7 can be arranged on the lower side of the fixing plate, the fixing plate and the rubber pressing plate are fixed on the outer side of the expansion joint through a connecting piece 8, preferably, the outer edge of the rubber pressing plate protrudes out of the fixing plate by 0.5-2mm, so that the rubber pressing plate is stably compacted by the fixing plate, and the two sides of the rubber pressing plate are also coated with silicone building sealant for water stopping to form an effective water stopping effect.
Of course, according to actual conditions of working conditions, it is also feasible to directly replace the water stop with the rubber pressing plate, and a person skilled in the art can select the rubber pressing plate according to actual needs.
When the concrete implementation is carried out, the anchoring hole positions are positioned before the rubber pressing plates and the stainless steel plates are installed, the installation holes are drilled in the concrete walls on the two sides of the joint, the stainless steel expansion bolts are installed, the rubber pressing plates and the stainless steel plates are sequentially installed, then the bolts are fastened, the firmness is ensured, the looseness is avoided, the included angles on the two sides of the rubber water stopping plates are smeared by using neutral structural glue, and the smearing surface is even and flat.
After all the procedures are completed, the installation stability of the bolts, the stainless steel plates and the rubber water stops is checked in sequence, after no water seepage is confirmed, construction equipment is dismantled, sundries and leftover materials generated by all the procedures are cleaned, and the procedures are handed over and accepted.
The construction method provided by the invention is easy to implement and has a good plugging effect, plugging materials injected into the inclined holes are injected into the joints, and side wings are formed in the inclined holes on two sides of the joints, so that the construction method has good stability and a good water blocking effect, the service life of the water delivery culvert pipe can be effectively prolonged, and the investment is saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. A water-stopping and leaking-stopping construction method for a concrete culvert pipe is characterized by comprising the following steps:
s1, determining the position of the leaking point, and checking the construction site environment;
s2, cleaning and polishing joints where leak points are located, filling water stop strips in the joints, arranging exhaust nozzles at intervals along the joints, wherein one ends of the exhaust nozzles extend into the joints, and the other ends of the exhaust nozzles are exposed out of the joints;
s3, plugging the periphery of the exhaust nozzle by using a plugging agent;
s4, arranging inclined holes at intervals along the seam, wherein the inclined holes penetrate through the seam;
s5, installing a grouting nozzle in the inclined hole, and injecting plugging materials into the grouting nozzle by a grouting pump until grouting is not performed;
s6, cleaning the plugging agent, and replacing polysulfide glue for sealing;
and S7, laying a water stop belt on the surface of the joint.
2. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the water stop strip is a rubber water stop strip which is 30mm thick and expands when meeting water.
3. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the exhaust nozzles are buried along the seams at intervals of 500 mm.
4. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the upper end opening of the inclined hole is positioned at one side of the seam, and the lower end of the inclined hole extends into the side wall at the other side of the seam.
5. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: and arranging the inclined holes every 1m along the seam.
6. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: two sides of the water stop belt are fixed by fixing plates respectively, holes are drilled on two sides of the joint respectively, and the fixing plates are fixed on two sides of the joint through connecting pieces respectively; meanwhile, silicone building sealant is smeared on two sides of the fixing plate to stop water.
7. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the connecting piece adopts a stainless steel expansion bolt.
8. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the fixed plate is made of a stainless steel plate.
9. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: the plugging material is a polyurethane water stop material.
10. The water-stopping and leaking-stopping construction method for the concrete culvert pipe according to claim 1, characterized in that: an angle of 45 degrees is formed between the inclined hole and the seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108638.7A CN112921842A (en) | 2021-01-27 | 2021-01-27 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110108638.7A CN112921842A (en) | 2021-01-27 | 2021-01-27 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
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| CN112921842A true CN112921842A (en) | 2021-06-08 |
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| CN202110108638.7A Pending CN112921842A (en) | 2021-01-27 | 2021-01-27 | Water-stopping and leaking-stopping construction method for concrete culvert pipe |
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| CN110805455A (en) * | 2019-10-30 | 2020-02-18 | 中国三冶集团有限公司 | Tunnel disease comprehensive treatment method |
| CN111156033A (en) * | 2020-01-20 | 2020-05-15 | 北京市市政工程研究院 | Tunnel inverted arch structure repairing method and repairing structure |
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| CN111828057A (en) * | 2020-07-30 | 2020-10-27 | 厦门顶巢建筑修缮研究院有限公司 | System and process for repairing leakage water of high-speed rail and subway tunnel |
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| DE19803932A1 (en) * | 1998-01-31 | 1999-08-19 | Bilfinger Berger Bau | Seal for joint located below water table between pipe and connecting drain |
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| CN110747764A (en) * | 2019-10-28 | 2020-02-04 | 湖北建科国际工程有限公司 | Assembly type box culvert settlement joint waterproof structure and construction method thereof |
| CN110805455A (en) * | 2019-10-30 | 2020-02-18 | 中国三冶集团有限公司 | Tunnel disease comprehensive treatment method |
| CN211690834U (en) * | 2019-12-20 | 2020-10-16 | 北京市水利规划设计研究院 | Water stop |
| CN111156033A (en) * | 2020-01-20 | 2020-05-15 | 北京市市政工程研究院 | Tunnel inverted arch structure repairing method and repairing structure |
| CN111828057A (en) * | 2020-07-30 | 2020-10-27 | 厦门顶巢建筑修缮研究院有限公司 | System and process for repairing leakage water of high-speed rail and subway tunnel |
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Application publication date: 20210608 |