CN115679852A - Drainage box culvert repairing method - Google Patents
Drainage box culvert repairing method Download PDFInfo
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- CN115679852A CN115679852A CN202211447155.0A CN202211447155A CN115679852A CN 115679852 A CN115679852 A CN 115679852A CN 202211447155 A CN202211447155 A CN 202211447155A CN 115679852 A CN115679852 A CN 115679852A
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Abstract
The invention discloses a method for repairing a drainage box culvert, which comprises the following steps: inside clearance, installation preparation steel framework, installation U-shaped draw-in groove, preparation section bar inside lining, the filling grout of box culvert after the restoration, the box culvert structure after the restoration contains: smooth inner liner, steel framework, the grout consolidation body and former box culvert that banded section spliced have the swift convenience of installation, and structural strength is high, and the advantage that inside lining surface corrosion resistance is good has ensured the safe in utilization of box culvert, has prolonged the life of box culvert simultaneously.
Description
Technical Field
The invention discloses a drainage box culvert repairing method, belonging to the technical field of box culvert repairing according to the division of an International Patent Classification (IPC).
Background
The drainage box culvert is one of the key facilities for urban drainage, and the structure and the operation quality of the drainage box culvert are directly related to the economic development of cities and the travel safety of citizens. On one hand, the drainage box culvert needs to overcome surrounding soil, external traffic load and underground hydrostatic pressure, on the other hand, urban environment pollution is serious, and the box culvert is corroded by various sewage and waste gas, so that various defects such as ageing, water leakage, water seepage and the like of the box culvert are easily caused, and the box culvert needs to be repaired in a non-excavation manner in time. In recent years, pipe network repairing technology is rapidly developed, but the technology is still less for the structural repairing technology of large box culverts.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a drainage box culvert repairing method, which adopts a box culvert repairing process that a steel framework, a strip-shaped section and grouting material are adopted to manufacture a composite lining with high structural strength on the inner surface of a box culvert.
In order to achieve the purpose, the invention is realized by the following technical scheme:
1. a method for repairing a drainage box culvert comprises the following steps:
s1, cleaning the interior of a box culvert;
s2, mounting and manufacturing the steel framework
Installing a steel framework along the inner side wall of the box culvert;
s3, installing a U-shaped clamping groove
A plurality of U-shaped clamping grooves which are arranged in parallel are arranged on the steel framework, and the U-shaped clamping grooves are arranged transversely or longitudinally;
s4, manufacturing the section bar lining
The strip-shaped section is a plate with a certain width, the strip-shaped section is cut into sections in the length direction according to the size of a box culvert and is sequentially arranged on a U-shaped clamping groove, the male and female lock catches of adjacent strip-shaped sections are fastened, the positions of the male and female lock catches are clamped in the U-shaped clamping groove, so that the outer surface layer formed by the whole strip-shaped section is fixed on a steel framework through the U-shaped clamping groove to form a section lining, and the four corners of the section lining are sealed to form a sealed whole;
s5, filling and grouting;
sealing the space between the lining of the section bar at two ends of the box culvert and the structural layer of the box culvert, embedding grouting holes and beneficial grouting holes at two ends respectively, and filling grouting into the space between the lining and the box culvert through the grouting holes to form grouting solidified bodies.
In the step S1, the sludge and the barriers inside the box culvert are cleaned, and manual cleaning, high-pressure water cleaning or mechanical equipment cleaning can be adopted.
In the step S2, the steel framework comprises a longitudinal main steel framework and a transverse main steel framework, the longitudinal main steel framework is installed at four corners of the box culvert, the transverse main steel framework is installed with a ring at a certain interval along the longitudinal direction of the box culvert, and the main steel frameworks are locked through welding or screws.
Further, when the height of the box culvert exceeds 2m, a secondary main steel framework is added in the middle and connected to form a steel framework, and a ring is installed on the transverse main steel framework along the box culvert at intervals of 1.5 m-2.5 m in the longitudinal direction.
In the step S3, the spacing distance between adjacent U-shaped clamping grooves is the same as the width of the strip-shaped section, the U-shaped clamping grooves are of clamping head structures extending along the direction of the clamping grooves, each clamping head structure comprises a U middle portion and clamping portions bent at two sides, the U middle portions are fixedly connected with the steel framework, and the clamping portions at two sides are connected with the strip-shaped section in a buckling mode.
In the step S4, the strip-shaped section comprises a section main body, one side of the section main body is a smooth plane, more than two T-shaped convex ribs extending in parallel are arranged on the other side of the section main body, fastening grooves are formed between every two adjacent T-shaped convex ribs, male lock catches and female lock catches are arranged on two sides of the section main body in the width direction, the adjacent male lock catches and the adjacent female lock catches of the strip-shaped section extend outwards in a fastened mode, sealant is coated along the male lock catches and the female lock catches, the male lock catches and the female lock catches form T-shaped convex ribs after being fastened, and clamping fastening grooves are formed between the T-shaped convex ribs and the adjacent T-shaped convex ribs.
Furthermore, the two clamping parts of the U-shaped clamping groove are respectively in locking connection with the clamping buckle grooves on the two sides after the male and female lock catches are fastened, and the fastened male and female lock catches are accommodated in the cavity in the middle of the U.
And S4, sealing the four corners of the section material lining by adopting hot-melt extrusion glue, so that the section material lining at the periphery forms a sealed whole.
And S5, filling grouting through the grouting holes, wherein the outlet position of the grout overflow hole at one end of the box culvert is higher than the top of the box culvert by more than 30cm, and the grouting process adopts a step grouting method, the box culvert height of 1/3 height is poured in each grouting, namely, the grout is poured to about 1/3 of the box culvert height during the first grouting, the second grouting is carried out after the grout is solidified, the grouting is stopped when the grout flows out from the grout overflow hole after the grouting is finished, and the ports of the grouting hole and the grout overflow hole are plugged after the grouting is finished.
And further, detecting the grouting effect by adopting a detection radar from the inner surface of the box culvert after repair, and grouting after tapping for the position with a cavity.
The invention relates to a method for repairing a drainage box culvert structure, which comprises the following steps of: the inner liner, the steel framework, the grouting consolidation body and the original box culvert which are spliced by the strip-shaped section bars have the advantages of quick and convenient installation, high structural strength and good corrosion resistance of the surface of the inner liner, ensure the use safety of the box culvert and prolong the service life of the box culvert.
Drawings
FIG. 1 is a cross-sectional view of an embodiment of the present invention.
Fig. 2 is a schematic view of a strip-shaped profile according to the invention.
Fig. 3 is a schematic view of a U-shaped card slot of the present invention.
FIG. 4 is a drawing showing the U-shaped slot and the matching of the spliced strip-shaped section bar of the invention.
Reference numerals are as follows: 1. the box culvert, 2, the filling and grouting, 3, the steel structure, 31, the longitudinal main steel structure, 32, the transverse main steel structure, 4, the U-shaped clamping groove, 41, the U middle part, 42, the clamping part, 5, the section liner, 51, the strip-shaped section, 501, the male lock catch, 502, the female lock catch, 503, the section main body, 504 and the T-shaped convex rib.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
the embodiment is as follows: referring to fig. 1 to 4, a method for repairing a drainage box culvert includes the following steps:
s1, cleaning the interior of a box culvert 1;
s2, mounting and manufacturing the steel framework
Installing a steel framework 3 along the inner side wall of the box culvert;
s3, installing a U-shaped clamping groove
A plurality of U-shaped clamping grooves 4,U-shaped clamping grooves 4 are arranged on the steel framework in a transverse or longitudinal mode;
s4, manufacturing the section bar lining
The strip-shaped section 51 is a plate with a certain width, the strip-shaped section is cut into sections in the length direction according to the size of a box culvert 1, the sections are sequentially arranged on a U-shaped clamping groove 4, adjacent strip-shaped section male and female lock catches 501 and 502 are fastened, the male and female lock catches are clamped in the U-shaped clamping groove 4, so that the outer surface layer formed by the whole strip-shaped section is fixed on a steel framework 3 through the U-shaped clamping groove 4 to form a section lining 5, and four corners of the section lining 5 are sealed to form a sealed whole;
s5, filling and grouting;
sealing the space between the profile liners 5 at the two ends of the box culvert and the box culvert structure layer, embedding grouting holes and beneficial grouting holes at the two ends respectively, and filling grouting into the space between the liners and the box culvert through the grouting holes to form grouting solidification bodies.
For convenience of understanding of the scheme of the application, the longitudinal direction is defined along the extension direction of the box culvert, the longitudinal vertical direction is defined as the transverse direction, and the strip-shaped section bar and the U-shaped clamping groove are transversely installed and can also be longitudinally installed in other embodiments.
In an embodiment of the present invention, in step S1, the silt and the obstacles inside the box culvert 1 are cleaned by manual cleaning, high-pressure water cleaning, or mechanical equipment cleaning. In the step S2, the steel framework 3 comprises a longitudinal main steel framework 31 and a transverse main steel framework 32, the longitudinal main steel framework 31 is installed at four corners of the box culvert 1, the transverse main steel framework 32 is installed in a ring at intervals along the longitudinal direction of the box culvert, and the main steel frameworks are locked through welding or screws. When the height of the box culvert 1 exceeds 2m, a secondary main steel framework is added in the middle and connected to form a steel framework, and a ring is installed on the transverse main steel framework along the box culvert 1 at intervals of 1.5 m-2.5 m in the longitudinal direction.
In an embodiment of the invention, a plurality of U-shaped slots 4 are arranged on the steel framework 3 in parallel along the extending direction of the box culvert, as shown in fig. 4, the spacing distance between adjacent U-shaped slots 4 is the same as the width of the strip-shaped section, as shown in fig. 3 and 4,U, the slots 4 are clamping head structures extending along the slot direction, each clamping head structure comprises a U middle part 41 and clamping parts 42 bent at two sides, the U middle part 41 is fixedly connected with the steel framework 3, and the clamping parts 42 at two sides are connected with the strip-shaped section 51 in a buckling manner. In step S4, as shown in fig. 2 and 4, the strip-shaped profile 51 includes a profile main body 503, one side of the profile main body 503 is a smooth plane, the other side of the profile main body 503 is provided with two or more T-shaped ribs 504 extending in parallel, a fastening groove is formed between adjacent T-shaped ribs 504, two sides of the profile main body in the width direction are provided with a male locking device 501 and a female locking device 502, the adjacent strip-shaped profile male and female locking devices are fastened to extend outward, a sealant is coated along the male and female locking devices, the male and female locking devices are fastened to form a T-shaped rib, and a fastening groove is formed between the T-shaped rib and the adjacent T-shaped rib. The U-shaped slot 4 is made of metal, the engaging portions 42 on both sides have elasticity and can be opened at a certain angle to be engaged with the strip-shaped section, the middle portion of the U is also called as the U-shaped middle portion, the two engaging portions 42 of the U-shaped slot 4 are respectively locked and connected with the engaging slots on both sides after the male and female lock catches are fastened, and the fastened male and female lock catches are accommodated in the cavity of the middle portion of the U, as shown in fig. 4. In the embodiment of the present invention, the U-shaped slot 4 may also be a V-shaped slot, and the strip-shaped material 51 is a corrosion-resistant material, such as a thermoplastic material and a modified material, such as polyethylene, polyvinyl chloride, or a thermosetting material, such as unsaturated polyester resin, vinyl resin, epoxy resin, or a modified material and a composite material thereof.
And S4, sealing the four corners of the section material lining by adopting hot-melt extrusion glue, so that the section material lining at the periphery forms a sealed whole. And S5, the outlet position of the grout overflow hole at one end of the box culvert is higher than the top of the box culvert by more than 30cm, and grouting is filled through the grouting hole. And a step-by-step grouting method is adopted in the grouting process, the box culvert height of 1/3 of the height is poured in each grouting, namely, the grout is poured to the position about 1/3 of the box culvert height in the first grouting, and after the grout is solidified, the second grouting is carried out, and the grouting is completed in sequence. Stopping grouting when the grout flows out of the grout overflow hole, and plugging ports of the grouting hole and the grout overflow hole after grouting is finished. And detecting the grouting effect by adopting a detection radar from the inner surface of the box culvert after the repair, and opening holes for grouting in positions with cavities.
The invention adopts a steel framework 3, a strip-shaped section bar 51 and grouting materials to manufacture a box culvert repairing process of a composite lining with high structural strength on the inner surface of a box culvert 1.
The method mainly comprises the following installation steps:
1. cleaning the sludge and the barriers in the box culvert 1 by adopting manual cleaning, high-pressure water cleaning or special mechanical equipment;
2. along 1 internally mounted main steel framework of box culvert, vertical main steel framework 31 is installed in the box culvert four corners, and when the box culvert highly exceeded 2m, it was a time main steel framework to need increase in the centre. The transverse main steel framework 32 is installed with a ring at intervals of about 2m along the longitudinal direction of the box culvert. The main steel framework can be locked by welding or screws;
3. the U-shaped clamping grooves 4,U are transversely arranged on the steel framework and are fixed on the steel framework through welding or screws, and the spacing distance of the U-shaped clamping grooves 4 is equal to the width of the strip-shaped section. In other cases, the U-shaped locking grooves 4 can also be arranged longitudinally, in which case the matching strip-shaped profiles are also arranged longitudinally.
4. Cutting banded section 51 into the section according to the box culvert size to install on U-shaped draw-in groove 4 in proper order, the straining of the public female hasp of adjacent banded section, public female hasp position card is in U type draw-in groove 4, makes the inner layer that whole banded section formed pass through U-shaped draw-in groove 4 and fix on steel framework 3. The four corners of the inner surface layer formed by the strip-shaped section bars can also be connected through arc-shaped section bars with male and female lock catches.
5. Sealing the four corners of the strip-shaped section lining by hot-melt extrusion glue, so that the strip-shaped section lining at the periphery forms a sealed whole;
6. sealing gaps between the inner liners at two ends of the box culvert and the box culvert structure layer, and respectively embedding grouting holes and grout-benefiting holes at two ends, wherein the outlet positions of the grout-overflowing holes are higher than the top of the box culvert by more than 30 cm;
7. special grout is stirred, and grouting is filled between the lining and the box culvert through the grouting holes. And a step-by-step grouting method is adopted in the grouting process, the box culvert height of 1/3 of the height is poured in each grouting, namely, the grout is poured to the position about 1/3 of the box culvert height in the first grouting, and after the grout is solidified, the second grouting is carried out, and the grouting is completed in sequence. Stopping grouting when the grout flows out of the grout overflow hole at the other end, and forming a grouting solidification body between the surface of the strip-shaped section and the box culvert structure layer;
8. and plugging the ports of the grouting hole and the grout overflow hole.
9. And detecting the grouting effect by adopting a detection radar from the inner surface of the box culvert after the repair, and opening holes for grouting in the place with the cavity.
The invention relates to a method for repairing a drainage box culvert, which is characterized in that a strip-shaped section is flat in lining, T-shaped convex ribs are arranged on the outer side of the strip-shaped section, male and female lock catches are arranged on two sides of the strip-shaped section, sealant is coated along the male and female lock catches, and the strip-shaped section is connected through the male and female lock catches on the two sides. The steel framework contains main steel framework and U-shaped draw-in groove, and the U-shaped draw-in groove is installed on the steel framework, and the inner liner that banded section spliced passes through the U-shaped draw-in groove to be fixed on the steel framework. The grouting material has the characteristics of good fluidity and high strength, and is suitable for gap filling grouting.
It should be understood that the above description is only an example of the technical disclosure, and any modifications and variations made by those skilled in the art can be covered by the present disclosure, and not limited by the embodiments disclosed in the present disclosure.
Claims (10)
1. A method for repairing a drainage box culvert is characterized by comprising the following steps:
s1, cleaning the interior of a box culvert;
s2, mounting and manufacturing the steel framework
Installing a steel framework along the inner side wall of the box culvert;
s3, installing a U-shaped clamping groove
A plurality of U-shaped clamping grooves are arranged on the steel framework, and the U-shaped clamping grooves are transversely or longitudinally arranged;
s4, manufacturing the section bar lining
The strip-shaped section bars are plates with certain width, are cut into sections in the length direction according to the size of a box culvert and are sequentially arranged on the U-shaped clamping grooves, the male and female lock catches of the adjacent strip-shaped section bars are fastened, the male and female lock catches are clamped in the U-shaped clamping grooves, so that the outer surface layer formed by the whole strip-shaped section bars is fixed on a steel framework through the U-shaped clamping grooves to form a section bar lining, and the four corners of the section bar lining are sealed to form a sealed whole;
s5, filling and grouting;
sealing the space between the lining of the section bar at two ends of the box culvert and the structural layer of the box culvert, embedding grouting holes and beneficial grouting holes at two ends respectively, and filling grouting into the space between the lining and the box culvert through the grouting holes to form grouting solidified bodies.
2. The method for repairing the drainage box culvert according to claim 1, wherein the method comprises the following steps: in the step S1, the sludge and the barriers inside the box culvert are cleaned, and manual cleaning, high-pressure water cleaning or mechanical equipment cleaning can be adopted.
3. The method for repairing the drainage box culvert according to claim 1, wherein the method comprises the following steps: in the step S2, the steel framework comprises a longitudinal main steel framework and a transverse main steel framework, the longitudinal main steel framework is installed at four corners of the box culvert, the transverse main steel framework is installed with a ring at a certain interval along the longitudinal direction of the box culvert, and the main steel frameworks are locked through welding or screws.
4. The method for repairing the drainage box culvert according to claim 3, wherein the method comprises the following steps: when the height of the box culvert exceeds 2m, a secondary main steel framework is added in the middle and connected to form a steel framework, and a ring is installed on the transverse main steel framework along the box culvert at intervals of 1.5-2.5 m in the longitudinal direction.
5. The method for repairing the drainage box culvert according to claim 1, wherein the method comprises the following steps: in the step S3, the spacing distance between adjacent U-shaped clamping grooves is the same as the width of the strip-shaped section, the U-shaped clamping grooves are of clamping head structures extending along the direction of the clamping grooves, each clamping head structure comprises a U middle portion and clamping portions bent at two sides, the U middle portions are fixedly connected with the steel framework, and the clamping portions at two sides are connected with the strip-shaped section in a buckling mode.
6. The method for repairing the drainage box culvert according to claim 5, wherein the method comprises the following steps: in the step S4, the strip-shaped section comprises a section main body, one side of the section main body is a smooth plane, more than two T-shaped convex ribs extending in parallel are arranged on the other side of the section main body, fastening grooves are formed between every two adjacent T-shaped convex ribs, male lock catches and female lock catches are arranged on two sides of the section main body in the width direction, the adjacent male lock catches and the adjacent female lock catches of the strip-shaped section extend outwards in a fastened mode, sealant is coated along the male lock catches and the female lock catches, the male lock catches and the female lock catches form T-shaped convex ribs after being fastened, and clamping fastening grooves are formed between the T-shaped convex ribs and the adjacent T-shaped convex ribs.
7. The method for repairing the drainage box culvert according to claim 6, wherein the method comprises the following steps: two clamping parts of the U-shaped clamping groove are respectively in locking connection with the clamping buckle grooves on the two sides after the male and female lock catches are fastened, and the fastened male and female lock catches are accommodated in the cavity in the middle of the U.
8. The method for repairing the drainage box culvert according to claim 1, wherein the method comprises the following steps: and S4, sealing the four corners of the section material lining by adopting hot-melt extrusion glue, so that the section material lining at the periphery forms a sealed whole.
9. The method for repairing the drainage box culvert according to claim 1, wherein the method comprises the following steps: and S5, filling grouting through the grouting holes, wherein the outlet position of a grout overflow hole at one end of the box culvert is higher than the top of the box culvert by more than 30cm, the grouting process adopts a step grouting method, the box culvert height of 1/3 height is poured in each grouting, the grout is poured to the position about 1/3 of the box culvert height in the first grouting, after the grout is solidified, the second grouting is carried out, the grouting is sequentially completed, when the grout flows out from the grout overflow hole, the grouting is stopped, and the ports of the grouting hole and the grout overflow hole are plugged after the grouting is completed.
10. The method for repairing the drainage box culvert according to claim 9, wherein the method comprises the following steps: and detecting the grouting effect by adopting a detection radar from the inner surface of the box culvert after the repair, and opening holes for grouting in positions with cavities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211447155.0A CN115679852A (en) | 2022-11-18 | 2022-11-18 | Drainage box culvert repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211447155.0A CN115679852A (en) | 2022-11-18 | 2022-11-18 | Drainage box culvert repairing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115679852A true CN115679852A (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211447155.0A Pending CN115679852A (en) | 2022-11-18 | 2022-11-18 | Drainage box culvert repairing method |
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| Country | Link |
|---|---|
| CN (1) | CN115679852A (en) |
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2022
- 2022-11-18 CN CN202211447155.0A patent/CN115679852A/en active Pending
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