CN218540460U - Round pipe culvert structure - Google Patents

Abstract

The utility model provides a circular pipe culvert structure relates to culvert engineering technical field, include: a culvert, the culvert comprising: the culvert body is used for flowing water; the culvert openings are positioned at two ends of the culvert body and used for discharging water flow in the culvert body; the culvert body includes: at least one pipe section, culvert foundation, seam; the pipe sections are arranged at the upper part of the culvert foundation; the seam is located between two adjacent installed pipe joints, and a settlement seam is arranged at the seam. The utility model discloses the structure is brief and reasonable, and the wholeness is strong, has improved the intensity and the stability of culvert structure, and the construction is simple and easy, can be used for the foundation construction milling the material, has practiced thrift cost and constructor's masonry work volume, has improved the efficiency of construction to reduce the pollution, reduced the building waste and discharged, protected the environment.

Description

Round pipe culvert structure

Technical Field

The utility model relates to a culvert engineering technical field particularly, relates to a round pipe culvert structure.

Background

The existing round pipe culvert can cause various damages due to the influence of various factors along with the increase of time, and some circular pipe culverts can locally deform or damage.

For the damage of structural deformation, later reinforcement or repair is needed to maintain normal use, and the existing culvert reinforcement is generally carried out by the following method: 1. the thick steel plate or the support frame is arranged on the inner side of the culvert, and the deformed gap is cast in situ, so that the overall bearing capacity of the reinforced surface is improved, but the field reinforcement operation and processing technology is complex, the construction space is narrow, the construction difficulty is high, the cost is high, and finally the construction efficiency of repair work is low, and the construction period is long; 2. the structural strength of the damaged position is improved by adopting an adhesive material such as carbon and aramid fiber to be adhered to the damaged area, but the existing operation has a limited reinforcing effect on the whole structure of the culvert or the tunnel.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses an aim at designs the structure of pipe culvert to improve water proofness, intensity and the bearing capacity of pipe culvert structure, and the stability of structure, reduce the emergence of harm, simplify technology, adopt the original road surface to mill to dig the material and be used for the foundation construction, reduce construction waste and discharge reduce cost.

The utility model provides a circular culvert structure, include: a culvert, the culvert comprising: the culvert body is used for water flowing through; the culvert openings are positioned at two ends of the culvert body and used for discharging water flow in the culvert body;

the culvert body includes: at least one pipe section, culvert foundation, seam; the pipe sections are arranged at the upper part of the culvert foundation; the seam is located between two adjacent installed pipe joints, and a settlement seam is arranged at the seam.

Preferably, the construction material of the culvert foundation can adopt an original road milling material so as to save cost, reduce pollution and reduce the discharge of construction waste.

Further, the pipe section includes: from last pipe shaft, the tube socket that sets gradually extremely down, the top of tube socket is the cambered surface, with the pipe shaft closely laminates, makes the even atress of tube coupling.

Further, the joint is leveled by mortar, a pipe belt is sleeved on the outer side of the joint, and two layers of asphalt are coated between the inner side of the pipe belt and the pipe joint and used for sealing the pipe belt and the pipe joint.

Further, the tube strip uses 1:3, the thickness is 3cm and the width is 15cm.

Furthermore, the settlement joint is filled with asphalt flax batting, asphalt-impregnated flax cloth is laid on the upper portion of the settlement joint, 2cm thick flax ropes are wound on the joint at the outer side of the asphalt-impregnated flax cloth, 15cm wide asphalt-impregnated flax cloth is wound on the thick flax ropes and used for sealing between adjacent pipe joints.

Further, the terminal surface of culvert entrance is provided with the headwall, the type of headwall includes: a straight wall and a splayed wall;

if stone is saved, a straight wall can be adopted; if the stones are sufficient, the splayed wall can also be adopted;

the culvert mouth is the connecting part of the culvert body, the roadbed and the water flow.

Further, the outside close joint of culvert is provided with culvert platform, culvert platform is used for to the resistance to compression and the shear support of culvert, culvert platform includes: the platform cap is positioned at the upper part of the culvert, and the platform body is positioned between the lower part of the platform cap and the foundation;

the stress structures of the table body and the table cap are different, the table body resists pressure, and the table cap mainly resists shearing.

Further, the span of the culvert platform is less than 6 meters, so that the construction cost and the masonry amount of constructors are saved.

Compared with the prior art, the utility model discloses the culvert structure at the bottom of the reinforced road bed's beneficial effect lies in:

the utility model discloses the pipe culvert structure is brief and reasonable, and the wholeness is strong, has improved strength, water proofness and the stability of culvert structure, and the construction is simple and easy, can be used for the foundation construction milling material, has practiced thrift cost and constructor's masonry work volume, has improved the construction efficiency to reduce the pollution, reduced the building waste and discharged, protected the environment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic elevation view of a circular pipe culvert structure according to an embodiment of the present invention;

fig. 2 is a schematic plan view of a circular pipe culvert structure according to an embodiment of the present invention;

fig. 3 is a schematic view of a hole elevation in an embodiment of the present invention;

fig. 4 is a big picture of the headwall of the embodiment of the present invention.

In the drawings, the reference numbers denote:

1. the culvert comprises a culvert body 2, culvert openings 11, pipe sections 12, culvert foundations 13, joints 111, a culvert body 112, pipe seats 21 and end walls.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inside", "outside", and the like are directions or positional relationships based on the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, for example, as a fixed connection, a detachable 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 connected internally or indirectly to each other. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiments of the present invention will be specifically explained with reference to the accompanying drawings:

an embodiment of the utility model provides a round pipe culvert structure, it is shown with reference to fig. 1, include: a culvert, the culvert comprising: the culvert body 1 is used for flowing water through, and the culvert mouth 2 is used for flowing water through the culvert body 1; the culvert openings 2 are positioned at two ends of the culvert body 1 and are used for discharging water flow in the culvert body 1;

the culvert body includes: at least one pipe section 11, a culvert foundation 12 and a joint 13; the pipe joint 11 is arranged at the upper part of the culvert foundation 12; the joint 13 is located between two adjacent pipe joints 11, and the joint 13 is provided with a settlement joint.

Preferably, the construction material of the culvert foundation 12 can be the original pavement milling material, so as to save cost, reduce pollution and reduce the discharge of construction waste.

Referring to fig. 2, the pipe section 11 includes: from last shaft 111, tube socket 112 that sets gradually down, the top of tube socket 112 is the cambered surface, with shaft 111 closely laminates, makes the even atress of tube coupling 11.

The joint 13 is trowelled by mortar, a pipe belt is sleeved on the outer side of the joint, and two layers of asphalt are coated between the inner side of the pipe belt and the pipe joint and used for sealing the pipe belt and the pipe joint.

Preferably, the pipe strap is used in a ratio of 1:3, the thickness is 3cm and the width is 15cm.

The settlement joint is filled with asphalt flax wadding, asphalt-impregnated flax fabrics are laid on the upper portion of the settlement joint, 2cm thick flax ropes are wound on the joint at the outer sides of the asphalt-impregnated flax fabrics, 15cm wide asphalt-impregnated flax fabrics are wound on the thick flax ropes and used for sealing between adjacent pipe joints.

The end face of the culvert mouth 2 is provided with an end wall 21, and the type of the end wall 21 comprises: a first-character wall and a splayed wall;

if stone is saved, a straight wall can be adopted; if the stones are sufficient, the splayed wall can be adopted;

the culvert mouth 2 is the connecting part of the culvert body 1, the roadbed and the water flow.

The outside close joint of culvert is provided with culvert platform, culvert platform is used for to the resistance to compression and the shear bearing of culvert, culvert platform includes: the table cap is positioned at the upper part of the culvert, and the table body is positioned between the lower part of the table cap and the foundation;

the stress structures of the table body and the table cap are different, the table body resists pressure, and the table cap mainly resists shearing.

The span of the culvert platform is less than 6 meters, so that the construction cost and the masonry amount of constructors are saved.

Application example

Construction method

Construction lofting

The culvert construction design drawing is the basis of construction lofting, and a technician at the project department marks the position on the ground and sets the longitudinal axis and the transverse axis of the culvert according to the mileage of a design center. The culvert ends are marked by using the wooden piles when improvement is not needed, and all sizes of the foundation pit and the foundation on the plane are measured by taking the axis as a reference and marked by using the wooden piles. And then checking the relative position relationship by using a steel ruler. And the fender pile of the axis pile is arranged at the position which is stable and not easy to damage on the periphery, the fender pile is reported to a supervision engineer after the self-inspection is qualified, and construction can be carried out after the self-inspection is qualified. The positions of the culverts need to be checked at any time during the construction of the culverts, and the culverts need to be adjusted in time when errors occur. And measuring the ground elevation by technicians at the project department to determine the excavation depth of the foundation pit according to the design elevation.

(II) excavation of foundation pit

1. Foundation pit excavation method

Adopting manual cooperation machinery to excavate, widening 50cm along each side of the width of the culvert foundation and digging a foundation pit 1, excavating to a position 10-20cm away from the culvert foundation elevation needing to be filled, and then manually cleaning the bottom. Attention must not be paid to overbreak of disturbed undisturbed soil.

2. Excavation notes of foundation pit

and a, after the foundation pit is excavated, covering the side slope by adopting color strip cloth.

b, draining water at the bottom of the foundation pit, digging a water drainage groove along the edge of the foundation pit, and pumping water by using a water pump.

c, arranging protective railings around the foundation pit 1.5m away from the side of the foundation pit by using phi 48 steel pipes, wherein the distance between vertical rods is 3m, the vertical rods are 1.20m higher than the natural terrace, the buried depth is 0.80m, the upper end, the lower end and the middle position of each vertical rod are respectively provided with a horizontal rod, the outer side of each vertical rod is sealed by a dense mesh net, and the side close to the access road is provided with a protection for limiting the vehicles to run close to the access road.

d, digging foundation construction is preferably arranged to be carried out in dry water or rainy seasons, planning and construction preparation work is done before work is done, and continuous and rapid construction is adopted after excavation.

e, accurately measuring the axis, the sideline position and the elevation of the base, and constructing after checking without errors.

f, digging the soil foundation pit to the designed elevation without exposing, disturbing or soaking for a long time, checking the size, elevation and bearing capacity of the foundation pit in time, and immediately performing foundation construction after meeting the requirements.

And g, digging and stacking the waste base in a centralized manner, and using the waste base as the soil for road greening protection.

(III) construction of foundations

1. Changing and filling stone slag or milling material for original road surface

And after the foundation pit is excavated to the designed elevation, a layer of stone slag with the thickness of 50cm or the milling material of the original pavement is filled on the substrate.

And (4) rolling by using a heavy road roller, and pressing the rubble or the milled material of the original pavement into the substrate until no sinking. The rolling sequence is that the two sides are firstly rolled and then the center is rolled; until the top surface of the laminated layer is stable, no sinking exists, no obvious wheel trace exists, and the phenomena of compactness, flatness and no spring are achieved.

2. Pipe-based concrete construction

The pipe foundation concrete can be poured twice, the bottom part is poured firstly, the thickness of the reserved reinforced concrete pipe and the thickness of the concrete pipe seat are noticed and are generally 2-3cm, and the top cambered surface of the concrete pipe seat is tightly attached to the pipe body, so that the pipe joint is uniformly stressed. And pouring the part above the pipe bottom after the pipe joints are placed.

3. Form panel

The surface of the concrete template is required to be flat and smooth. The isolating agent must not adopt waste engine oil, waste diesel oil and other materials which affect the beauty of the concrete. The template is straightened by adopting a wire stretching method, and the verticality of the template is controlled by a hanging ball method.

And b, reinforcing the template by using a frame pipe or a square timber as much as possible, so that the number of the tie bars is reduced, but the stability, firmness and accurate size of the template are ensured.

c, a cement rice-stone mortar belt with the width of 5-10 cm and the thickness of 2cm can be manufactured under the template so as to ensure the level and the elevation of the template to be accurate.

d, the strength of the concrete during form removal must meet the design requirements, the strength must not be lower than 2.5Mpa when the design is not required, and the temperature during form removal must be considered not to be too high so as to avoid cracking of the concrete due to temperature reduction when contacting air and further avoid casting cold water for curing at the moment. Before the temperature of the interior of the concrete begins to be reduced and when the temperature of the concrete is highest, the mold is not required to be removed.

And e, removing the template and the support according to the sequence of first support and then removal.

4. Pouring of concrete

and a, carrying out commercial concrete on the concrete, transporting by using a tank truck, pouring and constructing a chute, and vibrating by using an inserted vibrator. The chute is required to be firmly and stably installed and convenient to move.

b, keeping the road for transporting the concrete smooth and unblocked, and ensuring that the concrete is transported in the process of transportation

The uniformity is kept, and the concrete is not layered or isolated when being transported to a pouring site, and has the working performance of required slump, air content and the like.

c, after the concrete is transported to a pouring site by the stirring tank truck, firstly rotating the stirring tank truck in the positive direction for 20-30 s at a high speed, and then reversely rotating and unloading.

d, the vibration depth of the vibrator is generally not more than 2/3-3/4 times of the length of the rod, the vibrator is quickly inserted and slowly pulled out during vibration, and the vibrator is continuously moved up and down so as to be uniform in tamping and reduce bubbles on the surface of concrete. The moving distance of the vibrating rods does not exceed 40cm, the distance between the vibrating rods and the side die is kept between 5cm and 10cm, the vibrating duration time is 20 to 30s for each vibrating part, and the excessive vibration and the leakage vibration are prevented by taking the degree that concrete at the part does not sink any more, bubbles do not appear, and floating slurry appears on the surface.

e, in the concrete vibrating process, the stability of the template support and the sealing condition of the joint are checked in a reinforcing mode so as to prevent slurry leakage. The surface of the concrete is smeared and smoothed by an iron trowel.

And (IV) the concrete strength of the pipe joints meets the design requirements.

And in the process of transporting, loading and unloading the pipe joints, anti-collision measures are taken to avoid the damage of the pipe joints.

(V) Joint treatment

And (3) using the joint of the pipe joint according to the design requirement, wherein the joint comprises the following components in parts by weight: 3, preparing cement mortar into a pipe belt with the thickness of 3cm and the width of 15cm, leveling the inside of the pipe by using the mortar, and coating asphalt on the pipe belt and the pipe body by two layers. The settlement joints are filled with asphalt flax wadding, then asphalt-impregnated flax fabrics are laid on the joints, and then 2cm thick flax ropes are wound on the joints and 15cm wide asphalt-impregnated flax fabrics are wound on the flax ropes.

(VI) Back filling of the platform

When the strength of the round pipe culvert concrete reaches 100% of the design strength, the backfilling can be carried out on two sides. The backfilling is to completely remove the construction waste and sundries, the backfilling is carried out by using 8% lime soil in a layered compaction mode, the layered thickness is less than or equal to 200mm, the compaction coefficient is more than or equal to 96%, and the backfilling is carried out on two sides of the culvert platform symmetrically and uniformly at the same time.

The embodiment of the utility model provides a pipe culvert structure is brief and reasonable, and the wholeness is strong, has improved the stability of the intensity, the water proofness and the structure of culvert structure, and the construction is simple and easy, can be used for the foundation construction milling the material, has practiced thrift cost and constructor's masonry work volume, has improved the construction efficiency to reduce the pollution, reduced the building waste and discharged, protected the environment.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A round pipe culvert structure, comprising: a culvert, the culvert comprising: the culvert body is used for water flowing through; the culvert openings are positioned at two ends of the culvert body and used for discharging water flow in the culvert body;

the culvert body comprises: at least one pipe section, culvert foundation, seam; the pipe sections are arranged at the upper part of the culvert foundation; the seam is located between two adjacent installation pipe joints, and the seam is provided with a settlement joint.

2. The round pipe culvert structure of claim 1, wherein the pipe sections comprise: from last pipe shaft, the tube socket that sets gradually extremely down, the top of tube socket is the cambered surface, with the pipe shaft closely laminates, makes the even atress of tube coupling.

3. The round pipe culvert structure of claim 1, wherein the joints are leveled by mortar, pipe belts are sleeved on the outer sides of the joints, and two layers of asphalt are coated between the inner sides of the pipe belts and the pipe joints for sealing between the pipe belts and the pipe joints.

4. The round pipe culvert structure of claim 3, wherein the pipe culvert structure uses a 1:3, the thickness is 3cm and the width is 15cm.

5. The round culvert structure of claim 1, wherein the settlement joint is filled with asphalt bast, an asphalt-impregnated linen is laid on the upper part of the settlement joint, and a 2cm thick hemp rope is wound on the asphalt-impregnated linen at the joint on the outer side of the asphalt-impregnated linen and a 15cm wide asphalt-impregnated linen is wound on the hemp rope for sealing between the adjacent pipe sections.

6. The round culvert structure of claim 1, wherein the culvert mouth has end walls at its end faces, the end walls being of a type comprising: a straight wall and a splayed wall.

7. The circular pipe culvert structure of claim 1, wherein the culvert is externally and tightly engaged with culvert platforms for pressure and shear support of the culvert, the culvert platforms comprising: the table cap is positioned at the upper part of the culvert, and the table body is positioned between the lower part of the table cap and the foundation.

8. The round culvert structure of claim 7, wherein the culvert platform has a span of < 6 meters.

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