CN113062236A - Wall protection integrated pipe culvert and construction method thereof - Google Patents
Wall protection integrated pipe culvert and construction method thereof Download PDFInfo
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- CN113062236A CN113062236A CN202110307325.4A CN202110307325A CN113062236A CN 113062236 A CN113062236 A CN 113062236A CN 202110307325 A CN202110307325 A CN 202110307325A CN 113062236 A CN113062236 A CN 113062236A
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- retaining wall
- pipe
- pipe culvert
- steel reinforcement
- integrated pipe
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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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- Structural Engineering (AREA)
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Abstract
The invention discloses a retaining wall integrated pipe culvert and a construction method thereof. The construction method comprises the following steps: s1, binding the steel reinforcement framework of the pipe joint and the steel reinforcement framework of the protecting wall; s2, adding templates to the steel reinforcement frameworks of the pipe joints and the steel reinforcement frameworks of the retaining walls, and pouring concrete to obtain the pipe culvert units; and S3, transporting the pipe culvert unit to the site for installation. The invention reduces the steps of on-site die filling and concrete pouring for manufacturing the retaining wall, can improve the installation and construction efficiency of the road drainage pipeline, can simultaneously perform the excavation of the foundation pit and the prefabrication of the pipe culvert unit, can greatly shorten the construction period and improve the installation and construction efficiency of the road drainage pipeline.
Description
Technical Field
The invention relates to a pipe culvert, in particular to a wall protection integrated pipe culvert and a construction method thereof.
Background
The pipe culvert, namely the culvert of which the structure is a round pipe, is a structure in highway and railway engineering and can be used as a drainage pipeline below the ground elevation. The pipe culvert is composed of a plurality of sections of reinforced concrete finished pipe joints prefabricated in a factory, a foundation pit needs to be excavated in an installation place before the pipe joints are installed, a retaining wall is arranged in the foundation pit, the top of the retaining wall is designed to be an arc-shaped surface tightly attached to the pipe body, and the pipe culvert is guaranteed to be evenly stressed.
According to the traditional retaining wall construction method, a foundation pit is required to be subjected to die filling and concrete pouring, a pipe joint is hoisted after the foundation pit is solidified and shaped, and then maintenance is required. The method has long construction period and is troublesome in wall protection and mold filling in a construction site.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, on the first aspect, the invention provides a wall-protecting integrated pipe culvert, which can improve the installation and construction efficiency of road drainage pipelines and is beneficial to solving the problem of long construction period in the prior art.
In a second aspect, the invention provides a construction method of a retaining wall integrated pipe culvert, which is beneficial to rapidly finishing production and installation of a drainage pipeline and can solve the problem of long construction period in the prior art.
The wall-protecting integrated pipe culvert comprises a plurality of pipe culvert units, each pipe culvert unit comprises a pipe joint and a protecting wall arranged below the pipe joint, and the pipe joints and the protecting wall are integrally cast.
According to the embodiment of the invention, at least the following technical effects are achieved:
the pipe joint and the retaining wall are prefabricated and integrally poured at the same time, so that the pipe joint and the retaining wall can be installed at the same time when the road drainage pipeline is constructed, the steps of on-site die filling and concrete pouring for manufacturing the retaining wall are reduced, the installation and construction efficiency of the road drainage pipeline can be improved, the excavation of the foundation pit and the prefabrication of the pipe culvert unit can be carried out at the same time, the construction period can be greatly shortened, and the installation and construction efficiency of the road drainage pipeline can be improved.
According to some embodiments of the invention, the skeletons of the pipe sections are connected to the skeletons of the retaining wall.
According to some embodiments of the invention, the retaining wall is cast with lightweight concrete.
According to some embodiments of the invention, a partition plate adapted to an outer surface of the pipe joint is disposed between the steel reinforcement cage of the pipe joint and the steel reinforcement cage of the retaining wall.
According to some embodiments of the invention, the bottom surface of the retaining wall is a corrugated surface.
According to some embodiments of the invention, the retaining wall wraps around half of the outer sidewall of the pipe section.
According to some embodiments of the invention, both sides of the retaining wall are provided with grooves.
According to some embodiments of the invention, a steel plate is disposed within the groove.
The construction method of the retaining wall integrated pipe culvert according to the embodiment of the second aspect of the invention is used for manufacturing the retaining wall integrated pipe culvert, and comprises the following steps:
s1, binding the steel reinforcement framework of the pipe joint and the steel reinforcement framework of the protecting wall;
s2, adding templates to the steel reinforcement frameworks of the pipe joints and the steel reinforcement frameworks of the retaining walls, and pouring concrete to obtain the pipe culvert units;
and S3, transporting the pipe culvert unit to the site for installation.
According to the embodiment of the invention, at least the following technical effects are achieved:
the integrated pipe culvert unit can be manufactured by adopting the steps, the steps of on-site die filling and concrete pouring for manufacturing the retaining wall are reduced, the mounting and construction efficiency of the road drainage pipeline can be improved, the construction period can be greatly shortened, and the mounting and construction efficiency of the road drainage pipeline is improved.
According to some embodiments of the invention, in step S1, the reinforcing cages of the pipe sections included in each pipe culvert unit and the reinforcing cages of the retaining walls are fixedly connected.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a retaining wall integrated pipe culvert;
in the figure: 100-pipe joint and 200-protecting wall.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the invention provides a retaining wall integrated pipe culvert, which comprises a plurality of pipe culvert units, wherein each pipe culvert unit comprises a pipe joint 100 and a retaining wall 200 arranged below the pipe joint 100, and the pipe joints 100 and the retaining walls 200 are integrally cast.
Adopt the dado integration pipe culvert that above-mentioned structure set up, pipe coupling 100 and dado 200 are prefabricated simultaneously, integrative pouring, can realize installing when pipe coupling 100 and dado 200 when carrying out road drainage pipe construction, have eliminated on-the-spot die filling, have pour the step of concrete in order to be used for making dado 200 to the prefabrication of excavation foundation ditch and pipe culvert unit can be gone on simultaneously, has reduced construction period greatly, has improved the efficiency of construction.
In some embodiments of the invention, the rebar grid of the pipe section 100 is connected to the rebar grid of the retaining wall 200. The steel bar frameworks of the pipe joints 100 and the steel bar frameworks of the retaining walls 200 are bound together at the joints, and the connection of the pipe joints 100 and the retaining walls 200 is enhanced through the connection of the steel bar frameworks, so that the integral pipe culvert of the retaining walls 200 after pouring forming is better in integrity.
In some embodiments of the present invention, the retaining wall 200 is formed by pouring lightweight concrete, such as foam concrete, which is formed by mechanically foaming a foaming agent through a foaming system of a foaming machine and uniformly mixing the foam with cement slurry, and has light weight. The retaining wall 200 can reduce the weight of the pipe culvert unit by pouring lightweight concrete on the premise of having sufficient supporting strength, thereby facilitating the hoisting of the pipe culvert unit.
In some embodiments of the invention, a spacer is provided between the steel reinforcement cage of the pipe joint 100 and the steel reinforcement cage of the retaining wall 200 to conform to the outer surface of the pipe joint 100. In order to meet the construction requirements, the pipe joints 100 are cast by common concrete, and because the pipe joints 100 and the retaining walls 200 are cast by different types of concrete, the partition plates are arranged between the steel bar frameworks of the pipe joints and the retaining walls, so that the concrete of different types can be prevented from being mixed to influence the overall performance of the pipe culvert units, and meanwhile, when the concrete is cast, the formwork is additionally arranged, and the partition plates are also equivalent to one part of the formwork. It should be noted that, because the steel reinforcement framework of the pipe joint 100 and the steel reinforcement framework of the retaining wall 200 are connected, holes for steel reinforcements to pass through are formed in the partition plate, the holes do not affect the overall separation of the partition plate on two different types of concrete, and the two different types of concrete partially contact with each other after solidification can further stabilize the connection between the pipe joint 100 and the retaining wall 200, thereby enhancing the integrity of the pipe culvert unit.
In some embodiments of the invention, the retaining wall 200 wraps around half of the outer sidewall of the pipe section 100. Correspondingly, half of the circumferential direction of the steel reinforcement framework of the pipe joint 100 is sunk in the steel reinforcement framework of the protecting wall 200, and after the pouring is completed, half of the pipe joint 100 is embedded in the protecting wall 200, so that the connection between the pipe joint 100 and the protecting wall 200 is more stable, and the integrity of the pipe culvert unit is enhanced. It can be understood that the more the pipe joints 100 are wrapped by the retaining wall 200, the better the integrity of the pipe culvert unit, but the thickness of the retaining wall 200, i.e. the distance between the bottom of the pipe joint 100 and the ground, is set, so the more the pipe joint 100 is wrapped by the retaining wall 200, the more the material required for pouring the retaining wall 200 is correspondingly, the more the retaining wall 200 wraps the half of the outer side wall of the pipe joint 100, which is a proper design, and of course, the degree of wrapping the pipe joint 100 by the retaining wall 200 can be adjusted according to the site construction requirements.
In some embodiments of the invention, the bottom surface of the retaining wall 200 is corrugated. The pipe culvert unit needs to be fixed with ground, because the dado 200 is not cast in situ die-filling and forms, so need lay a layer of concrete in the foundation ditch of installation pipe culvert unit and carry out the preliminary fixed of pipe culvert unit, the area of contact of dado 200 bottom surface and concrete can be increased to the ripple face for the fixed effect on pipe culvert unit and ground is better.
In some embodiments of the invention, both sides of the retaining wall 200 are provided with grooves. The recess can assist the installation alignment of pipe culvert unit, when hoist and mount pipe culvert unit, use the cable wire to pass tube coupling 100 earlier, articulate the cable wire on the lifting hook of crane again, hang the pipe culvert unit through the crane and go into the mounted position that corresponds in the foundation ditch, then dock the adjustment to two adjacent pipe culvert units, and the cable wire can influence the 100 docks of tube coupling between two adjacent pipe culvert units, so need take off the cable wire, the recess that can rely on seting up on the dado 200 at this moment comes the pipe culvert unit to remove the adjustment as the stress point, accomplish the butt joint of two adjacent pipe culvert units.
In some embodiments of the invention, a steel plate is disposed within the groove. The whole inner wall of recess is covered with to the steel sheet, and the whole weight of pipe culvert unit is big, and dado 200 adopts lightweight concrete to pour, and the hardness is lower relatively, can harm the recess when removing the adjustment through the recess, and then causes destruction to dado 200, sets up the steel sheet and can carry out the protection of certain degree to dado 200.
It should be noted that the grooves are formed by casting, corresponding groove positions are designed when the steel reinforcement framework of the retaining wall 200 is bundled and a template is added, meanwhile, the steel plates are also arranged at the template positions corresponding to the grooves, and the steel plates are embedded into the inner walls of the grooves after the pipe culvert units are formed by casting.
In addition, the invention also provides a construction method for the retaining wall integrated pipe culvert, which specifically comprises the following steps:
s1, binding the steel reinforcement framework of the pipe joint 100 and the steel reinforcement framework of the protective wall 200;
s2, adding templates to the steel reinforcement frameworks of the pipe sections 100 and the steel reinforcement frameworks of the retaining walls 200, and pouring concrete to form a pipe culvert unit;
and S3, transporting the pipe culvert unit to the site for installation.
The integrated pipe culvert unit can be manufactured by adopting the steps, the steps of on-site die filling and concrete pouring for manufacturing the retaining wall are reduced, the mounting and construction efficiency of the road drainage pipeline can be improved, the construction period can be greatly shortened, and the mounting and construction efficiency of the road drainage pipeline is improved.
In some embodiments, the following steps are employed:
s1, bundling the pipe joints 100 and the steel reinforcement frameworks of the protective wall 200, and placing a partition plate between the steel reinforcement frameworks of the pipe joints and the protective wall;
s2, adding a template, pouring concrete, and excavating a foundation pit on the ground where the retaining wall integrated pipe culvert is installed;
s3, after the concrete is solidified, the template is removed, the pipe culvert unit is transported to a construction site, and then the pipe culvert unit is hoisted into the foundation pit.
By adopting the construction steps, the foundation pit is excavated while the pipe culvert unit is prefabricated, and the pipe culvert unit is immediately hoisted and constructed after being formed, so that the pipe culvert unit is ensured to be stably and quickly installed.
When the reinforcing bars are tied, the reinforcing bars of the pipe joints 100 and the reinforcing bars of the retaining wall 200 are fixedly connected. The connection of the pipe joints 100 and the retaining walls 200 is enhanced through the connection of the steel reinforcement framework, so that the integrity of the integral pipe culvert of the retaining walls after pouring is better.
In some embodiments, the spacer interposed between the steel reinforcement cage of the pipe joint 100 and the steel reinforcement cage of the retaining wall 200 is a curved plate that fits over the outer surface of the pipe joint 100. Obviously, the curved plate may have a part of the area protruding toward the steel reinforcement framework of the retaining wall 200 due to the steel reinforcement framework wrapping the pipe joint 100, and needs to be installed in a mold during pouring, the steel reinforcement framework of the pipe joint 100 and the steel reinforcement framework of the retaining wall 200 are connected, and the mold is not easily placed in the mold, so that the partition plate may be used as the mold.
In some embodiments, before the integrated pipe culvert of the retaining wall is hoisted, a layer of concrete is laid in the foundation pit. Because the pipe culvert needs to be fixed with the ground, for example, in the traditional construction method, the dado 200 is subjected to formwork installation and concrete pouring in a foundation pit, and the formwork is removed after the dado 200 is solidified and formed, the traditional construction method fixes the dado 200 with the ground in the manufacturing process of the dado 200. In the present invention, the retaining wall 200 is prefabricated integrally with the pipe joints 100, so that a layer of concrete needs to be laid in the foundation pit before the pipe culvert unit is hoisted, thereby achieving the primary fixation of the pipe culvert unit.
In some embodiments, after step S3, a fastening process is further included for fixing the retaining wall integrated pipe culvert. Laying a layer of concrete in the foundation pit to finish primary fixing of the pipe culvert units, wherein the fastening process comprises fixing the pipe culvert units by connection and fixing the pipe culvert units and the roadbed.
The fixed connection between the pipe culvert unit includes: after aligning between two adjacent pipe culvert units, fill the joint line between two pipe culvert units with the concrete to along the joint line between two pipe culvert units with concrete pile round boss.
The fixed of pipe culvert unit and road bed includes: concrete is filled at the connection part of the pipe culvert unit and the foundation pit, the gap between the foundation pit and the pipe culvert unit is eliminated, and the retaining wall 200 is buried in the foundation pit. It should be noted that the excavation depth of the excavation pit is greater than the height of the retaining wall 200.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a dado integration pipe culvert which characterized in that, includes a plurality of pipe culvert units, the pipe culvert unit includes the tube coupling and sets up the dado of tube coupling below, the tube coupling with dado integrative pouring.
2. A retaining wall integrated pipe culvert according to claim 1, wherein the steel reinforcement cage of the pipe section connects the steel reinforcement cage of the retaining wall.
3. A retaining wall integrated pipe culvert according to claim 2, wherein the retaining wall is cast with lightweight concrete.
4. A retaining wall integrated pipe culvert according to claim 3, characterized in that a partition plate adapted to the outer surface of the pipe section is arranged between the steel reinforcement framework of the pipe section and the steel reinforcement framework of the retaining wall.
5. A retaining wall integrated pipe culvert according to claim 1, wherein the bottom surface of the retaining wall is a corrugated surface.
6. A retaining wall integrated pipe culvert according to claim 1 wherein the retaining wall wraps half of the outside wall of the pipe section.
7. A retaining wall integrated pipe culvert according to claim 1, wherein grooves are provided on both sides of the retaining wall.
8. A retaining wall integrated pipe culvert according to claim 7, wherein steel plates are arranged in the grooves.
9. A construction method of a retaining wall integrated pipe culvert, which is used for manufacturing the retaining wall integrated pipe culvert of claim 1, and comprises the following steps:
s1, binding the steel reinforcement framework of the pipe joint and the steel reinforcement framework of the protecting wall;
s2, adding templates to the steel reinforcement frameworks of the pipe joints and the steel reinforcement frameworks of the retaining walls, and pouring concrete to obtain the pipe culvert units;
and S3, transporting the pipe culvert unit to the site for installation.
10. The method of constructing a retaining wall integrated pipe culvert according to claim 9, wherein in step S1, the steel reinforcement frames of the pipe sections included in each pipe culvert unit and the steel reinforcement frames of the retaining wall are fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307325.4A CN113062236A (en) | 2021-03-23 | 2021-03-23 | Wall protection integrated pipe culvert and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110307325.4A CN113062236A (en) | 2021-03-23 | 2021-03-23 | Wall protection integrated pipe culvert and construction method thereof |
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| CN113062236A true CN113062236A (en) | 2021-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110307325.4A Pending CN113062236A (en) | 2021-03-23 | 2021-03-23 | Wall protection integrated pipe culvert and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481876A (en) * | 2022-03-09 | 2022-05-13 | 宁夏青龙管业集团股份有限公司 | Method and manufacturing based on reinforced concrete special-shaped pipe culvert design |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2004123601A (en) * | 2004-07-30 | 2006-01-20 | Иван Васильевич Еременко (RU) | WATER DRAINAGE STRUCTURE |
| CN201843090U (en) * | 2010-11-08 | 2011-05-25 | 济南大学 | Novel culvert pipe structure |
| CN105648933A (en) * | 2015-12-31 | 2016-06-08 | 长安大学 | Multi-hole culvert structure adopting foam concrete and corrugated steel sheets and construction method of multi-hole culvert structure |
| CN106948282A (en) * | 2017-05-23 | 2017-07-14 | 中冶建工集团有限公司 | The construction method of Integral Steel corrugated pipe forming culvert |
| CN207017170U (en) * | 2017-06-29 | 2018-02-16 | 衡水益通管业股份有限公司 | A kind of corrugated steel pipe steel-concrete combined structure suitable for high roadbed engineering |
| CN110904869A (en) * | 2019-12-06 | 2020-03-24 | 广州市第二市政工程有限公司 | Construction method of integral double-layer waterproof circular pipe culvert |
-
2021
- 2021-03-23 CN CN202110307325.4A patent/CN113062236A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2004123601A (en) * | 2004-07-30 | 2006-01-20 | Иван Васильевич Еременко (RU) | WATER DRAINAGE STRUCTURE |
| CN201843090U (en) * | 2010-11-08 | 2011-05-25 | 济南大学 | Novel culvert pipe structure |
| CN105648933A (en) * | 2015-12-31 | 2016-06-08 | 长安大学 | Multi-hole culvert structure adopting foam concrete and corrugated steel sheets and construction method of multi-hole culvert structure |
| CN106948282A (en) * | 2017-05-23 | 2017-07-14 | 中冶建工集团有限公司 | The construction method of Integral Steel corrugated pipe forming culvert |
| CN207017170U (en) * | 2017-06-29 | 2018-02-16 | 衡水益通管业股份有限公司 | A kind of corrugated steel pipe steel-concrete combined structure suitable for high roadbed engineering |
| CN110904869A (en) * | 2019-12-06 | 2020-03-24 | 广州市第二市政工程有限公司 | Construction method of integral double-layer waterproof circular pipe culvert |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114481876A (en) * | 2022-03-09 | 2022-05-13 | 宁夏青龙管业集团股份有限公司 | Method and manufacturing based on reinforced concrete special-shaped pipe culvert design |
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Application publication date: 20210702 |