CN219930755U - Circular pipe auxiliary road culvert structure - Google Patents

Abstract

The utility model provides a circular tube auxiliary channel culvert structure, which relates to the technical field of culvert engineering and comprises the following components: culvert, the culvert includes: the culvert body is used for flowing water; the holes are positioned at two ends of the culvert body and used for discharging water flow in the culvert; setting a settlement joint every 3-5m of culvert; the culvert body comprises: the pipe base and the pipe joint are sequentially arranged from bottom to top, the top of the pipe base is an arc surface, and the pipe base is tightly attached to the pipe joint; the pipe joint is provided with a spiral main rib for supporting the pipe joint, and the central line of the spiral main rib coincides with the central axis of the pipe joint; the spiral main rib comprises: an inner ring and an outer ring; the inner ring and the outer ring are respectively arranged on the inner cylindrical surface and the outer cylindrical surface of the pipe joint; the outside of the pipe joint is coated with two layers of asphalt. The utility model has simple and reasonable structure and strong integrity, improves the strength and stability of the auxiliary road culvert structure, is simple and easy to construct, uses the original road milling material for cushion construction, saves the cost, improves the construction efficiency, reduces the emission of construction waste and protects the environment.

Description

Circular pipe auxiliary road culvert structure

Technical Field

The utility model relates to the technical field of culvert engineering, in particular to a circular tube auxiliary channel culvert structure.

Background

The existing circular pipe auxiliary channel is increased along with the time, various damages can occur due to the influence of various factors, and partial deformation or damage can occur.

For structural deformation diseases, the structural deformation diseases need to be reinforced or repaired in a later period to maintain normal use, and the existing auxiliary culvert and 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, the deformation gap is cast in situ, the integral bearing capacity of the reinforcing surface is improved, but the on-site reinforcing 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. and the bonding material such as bonding carbon and aramid fiber is bonded in the damaged area, so that the structural strength of the damaged position is improved.

However, the prior operation has limited reinforcement effect on the overall structure of the culvert of the auxiliary passage.

Disclosure of Invention

In view of the above, the utility model aims to design the structure of the circular pipe auxiliary culvert structure so as to improve the water tightness, strength and bearing capacity of the circular pipe culvert structure, and the stability of the structure, reduce the occurrence of damage, simplify the process, adopt the original road milling material for pipe foundation construction, reduce the emission of construction waste and reduce the cost.

The utility model provides a circular tube auxiliary channel culvert structure, which comprises: culvert, the culvert includes: the culvert body is used for flowing water; the holes are positioned at two ends of the culvert body and are used for discharging water flow in the culvert;

setting a settlement joint every 3-5m of the culvert;

the culvert body comprises: the pipe joint is tightly attached to the pipe joint, so that the pipe joint is uniformly stressed; the pipe joint is provided with a spiral main rib for supporting the pipe joint, and the central line of the spiral main rib coincides with the central axis of the pipe joint;

the spiral main rib includes: an inner ring and an outer ring; the inner ring and the outer ring are respectively arranged on the inner cylindrical surface and the outer cylindrical surface of the pipe joint;

the outside of the pipe joint is coated with two layers of asphalt to increase the water tightness of the pipe joint.

Further, the lower part of the pipe base is provided with a cushion layer, and the cushion layer adopts an original road milling material, so that the cost is saved, the pollution is reduced, and the emission of construction waste is reduced.

Further, the cast concrete of the pipe base is divided into two parts, wherein one part is the cast concrete positioned at the bottom of the pipe joint; the other part is casting concrete which is positioned above the bottom of the pipe joint after the pipe joint is installed on the pipe base.

Further, mortar is used for trowelling at the joint between the pipe joints, 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 joints and used for sealing between the pipe belt and the pipe joints.

Further, the tube band uses 1:3 cement mortar, the thickness is 3cm, and the width is 15cm.

Further, the sedimentation joint is stuffed with asphalt hemp batting, asphalt immersed hemp cloth is paved on the upper part of the sedimentation joint, the outer side of the asphalt immersed hemp cloth is positioned at the joint, a 2cm thick hemp rope is wound on the joint, and 15cm wide asphalt immersed hemp cloth is wound on the thick hemp rope and used for sealing between adjacent pipe joints.

Further, the end face of the hole is provided with an end wall, and the end wall comprises: splayed wall, straight wall.

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

Preferably, the back slope of the vertical section of the splayed wall is 4:1, the width of the wall top is 40cm, and the width of the vertical front edge of the end wall foundation is 10cm.

Further, a drainage and irrigation ditch is arranged on the outer side of the end wall of the hole, and the drainage and irrigation ditch is used for draining rainwater out of the hole.

Further, the aperture of the pipe joint is phi 1.5m.

Compared with the prior art, the culvert structure for reinforcing the road bed bottom has the beneficial effects that:

the round pipe auxiliary road culvert structure is simple and reasonable, the integrity is strong, the strength, the water tightness and the stability of the auxiliary road culvert structure are improved, the construction is simple, the original road milling material is used for cushion layer construction, the cost and the masonry quantity of constructors are saved, the construction efficiency is improved, the emission of construction waste is reduced, the pollution is reduced, and the environment is protected.

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 utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic elevation view of a circular pipe auxiliary structure according to an embodiment of the present utility model;

FIG. 2 is a schematic plan view of a circular pipe culvert auxiliary structure according to an embodiment of the utility model;

FIG. 3 is a schematic view of an elevation of an opening according to an embodiment of the present utility model;

FIG. 4 is a schematic plan view of a section B-B of an embodiment of the present utility model;

FIG. 5 is a schematic plan view of a cross-section C-C of an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a culvert body in accordance with an embodiment of the utility model;

FIG. 7 is a longitudinal section view of a pipe joint according to an embodiment of the present utility model;

FIG. 8 is a schematic view of an inner ring of a spiral main rib according to an embodiment of the present utility model;

fig. 9 is a schematic view of an outer ring of a spiral main rib according to an embodiment of the present utility model.

The labels in the figures are:

1. the concrete body comprises a body, 2 holes, 11, pipe joints, 12, pipe bases, 13, a cushion layer, 3, end walls, 4 drainage and irrigation ditches, 5, settlement joints, 6, spiral main ribs, 61, an inner ring, 62 and an outer ring.

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 to 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, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the term "connected" should be interpreted broadly, and for example, it may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected inside two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Embodiments of the present utility model will be described in detail below with reference to the attached drawings:

the embodiment of the utility model provides a circular pipe auxiliary channel structure, which is shown in fig. 1 and 2, and comprises the following components: culvert, the culvert includes: the culvert body 1 and the opening 2, wherein the culvert body 1 is used for flowing water; the holes 2 are positioned at two ends of the culvert body 1 and are used for discharging water flow in the culvert;

a settlement joint 5 is arranged every 3-5m of the culvert;

referring to fig. 3 to 5, the culvert body 1 comprises: the pipe base 12 and the pipe joint 11 are sequentially arranged from bottom to top, the top of the pipe base 12 is an arc surface, and the pipe base 12 is tightly attached to the pipe joint 11, so that the pipe joint 11 is uniformly stressed; the pipe joint 11 is provided with a spiral main rib 6 for supporting the pipe joint 11, and the central line of the spiral main rib 6 coincides with the central axis of the pipe joint 11;

referring to fig. 7 to 9, the spiral main rib 6 includes: an inner ring 61 and an outer ring 62; the inner ring 61 and the outer ring 62 are respectively arranged on the inner cylindrical surface and the outer cylindrical surface of the pipe joint 11;

referring to fig. 6, the outside of the pipe joint 11 is coated with two layers of asphalt to increase the water tightness of the pipe joint 11.

The lower part of the pipe base 12 is provided with a cushion layer 13, and the cushion layer 13 adopts an original road milling material so as to save cost, reduce pollution and reduce the emission of construction waste.

The casting concrete of the pipe base 12 is divided into two parts, wherein one part is the casting concrete positioned at the bottom of the pipe joint 11; the other part is the casting concrete located above the bottom of the pipe section 11 after the pipe section 11 is mounted on the pipe base 12.

The joint between the pipe joints 11 is smoothed by mortar, the outside of the joint is sleeved with a pipe belt, and two layers of asphalt are coated between the inner side of the pipe belt and the pipe joints 11 and used for sealing between the pipe belt and the pipe joints 11.

Preferably, the tube band uses 1:3 cement mortar, the thickness is 3cm, and the width is 15cm.

Asphalt hemp batting is stuffed in the settlement joint 5, asphalt immersed hemp cloth is paved on the upper part of the settlement joint 5, the outer side of the asphalt immersed hemp cloth is positioned at the joint, a 2cm thick hemp rope is wound on the joint, and 15cm wide asphalt immersed hemp cloth is wound on the thick hemp rope and used for sealing between adjacent pipe sections 11.

The end face of the hole 2 is provided with an end wall 3, and the end wall 3 is a splayed wall. The back slope of the vertical section of the splayed wall 3 is 4:1, the width of the wall top is 40cm, and the width of the vertical front edge of the end wall foundation is 10cm.

In this embodiment, a drainage and irrigation ditch 4 is arranged on the outer side of the end wall of the hole 2, and the drainage and irrigation ditch 4 is used for draining rainwater out of the hole 2.

In this embodiment, the pore diameter of the pipe joint 11 is Φ1.5m.

The round pipe auxiliary road culvert structure is simple and reasonable, the integrity is strong, the strength, the water tightness and the stability of the auxiliary road culvert structure are improved, the construction is simple, the original road milling material is used for cushion layer construction, the cost and the masonry quantity of constructors are saved, the construction efficiency is improved, the emission of construction waste is reduced, the pollution is reduced, and the environment is protected.

Application example

The engineering auxiliary road culvert of the application example adopts a cover plate except for an auxiliary road crossing the stone side ditch, and the balance is round pipe auxiliary road culvert, in particular 1-phi 1.5m round pipe auxiliary road culvert. The foundation of the circular pipe auxiliary channel culvert end wall is No. 7.5 mortar rubble; the end wall body is made of 7.5 # mortar masonry and 10 # mortar pointing; the round pipe is reinforced concrete No. 25, and the cap stone is cast-in-situ concrete No. 20. Setting a sedimentation seam every 3-5m within the length range of the culvert body.

1. The construction scheme is as follows:

and (one) measuring and paying-off:

and measuring the center line of the circular pipe culvert by using a total station, and determining the foundation pit excavation side line pile. In order to avoid the rainwater from punching the pit wall, drainage is well made around the top of the foundation pit, surface water is caught, the size of foundation pit excavation meets the requirement of foundation construction, the foundation excavation width is 2 times of the diameter of a pipe culvert, and the template is convenient to install and the drainage ditch is arranged.

And (II) foundation excavation:

the digging base is mainly mechanical and is assisted by manual groove cleaning. The foundation soil is dug away from the edge of the foundation pit so as to avoid collapse and influence on construction.

And (III) laying a pipe culvert substrate:

and (5) manually tamping the substrate after manually cleaning the substrate. The foundation mat adopts a gravel mat.

And (IV) pipe culvert installation: after the prefabricated pipe enters the field, firstly, the finished product is checked, and the finished product can be used after being qualified. The end face of the prefabricated pipe should be flat and perpendicular to the axis of the prefabricated pipe, and the prefabricated pipe must not have damage and cracks, and the surface must not have serious defects of honeycomb, pitted surface and loose concrete, exposed steel bars are dislocated, and the like.

The prefabricated pipe is installed by adopting a construction method of field splicing. The culvert installation starts from downstream and faces upstream. Each section of culvert pipe is tightly attached to the cushion layer, so that the stress of the culvert pipe is uniform, and all the pipe sections are laid according to the correct axis and the gradient shown in the drawing.

The width of the joints of the culvert pipe is not more than 10mm, the joints are stuffed with asphalt wadding waterproof materials, four layers of asphalt-soaked felt with the width of 150mm are wrapped according to the requirements of a design drawing, and the joint parts are bound by using lead bullion.

The pipe culvert joint is a flat joint, and the joint is required to be fully cured after the joint is filled with the cement mortar according to the ratio of 1:3, and the mortar tape is smeared, so that the design strength is met without generating cracks and falling phenomena, and the pipe culvert joint is stable, durable and water-free.

And (II) building an end wall foundation and a wall body:

(1) The stones should be built in layers, preferably 2-3 layers of masonry are used to form a working layer, the horizontal seam of each working layer is approximately leveled, and the vertical seams of each working layer should be staggered and not communicated.

(2) The outer ring positions the row and the corner stone, selects the sheet stone with square shape or larger size, and can be snapped with the inner layer masonry in a short opposite way. The joint width should generally not be greater than 40mm.

(3) The larger stone should be used in the lower floor, the building blocks with proper shape and size should be selected during the construction, and the sharp part should be knocked out. When the vertical joint is wider, small stones should be plugged in the mortar, and small stone pieces above the mortar joint should not be used for supporting the lower surfaces of the stones.

2. Construction method

Construction lofting

The design drawing of culvert construction is the basis of construction lofting, and positions are marked on the ground and longitudinal and transverse axes of the culvert are arranged. And after the axis of the culvert is determined, measuring the length of the culvert at the upstream and downstream, considering whether the water inlet and the water outlet are smooth, when the improvement is not needed, calibrating the culvert ends by using the wooden piles, measuring all the dimensions of the foundation pit and the foundation on a plane by taking the axis as a reference, and marking by using the wooden piles. And then checking the relative position relationship by using a steel ruler. And a pile protection of the axial pile is arranged at a position which is stable and not easy to damage around, and the pile protection is reported to a supervision engineer after the self-inspection is qualified, and the construction can be performed after the self-inspection is qualified. The position of the culvert is checked at any time during construction, and the culvert is adjusted in time when errors occur. And measuring the ground elevation by project department technicians, and determining the excavation depth of the foundation pit according to the design elevation.

And (II) excavating a foundation pit:

1. pit excavation method

And (3) adopting manual matching with mechanical excavation, widening a slope by 50cm along each side of the width of the culvert foundation, excavating a foundation pit by 1:1, mechanically excavating to a position 10-20cm away from the culvert, which is required to be replaced with a base, and then manually clearing the bottom. Note that the undisturbed soil must not be disturbed by overexcavation.

2. Attention points of foundation pit excavation

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

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

c, a phi 48 steel pipe is arranged around the foundation pit 1.5m away from the side, the distance between the vertical rods is 3m, the height of the natural terrace is 1.20m, the burial depth is 0.80m, a horizontal rod is respectively added at the upper end, the lower end and the middle position of each vertical rod, the outer surface is sealed by a dense mesh net, and a protection for limiting the vehicles to run close is arranged near the side of the channel.

d, foundation excavation construction is preferably carried out in dry water or in a rainless season, planning and construction preparation work are carried out before construction is started, and continuous and rapid construction is adopted after excavation.

And e, accurately measuring the axis, the side line position and the substrate elevation of the foundation, and constructing after checking without errors.

f, digging the soil foundation pit to the designed elevation, and immediately performing foundation construction after the soil foundation pit is not exposed, disturbed or soaked for a long time and the size, elevation and substrate bearing capacity of the foundation pit are checked in time and meet the requirements.

g, the excavated base waste is piled up intensively and can be used as road greening protection soil.

And (III) foundation construction:

1. and replacing stone slag or milling and planing materials of the original road surface:

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

Rolling by a heavy road roller, and pressing the sheet stone or the original road milling material into the substrate until no sinking exists. The rolling sequence is that two sides are firstly and then the center is arranged; until the top surface of the laminated layer is stable, no sinking and no obvious wheel trace are caused, the laminated layer is compact, smooth and free of spring phenomenon.

2. And (3) pipe-based concrete construction:

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

3. And (3) a template:

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

And b, reinforcing the template by using a shelf pipe or square timber as much as possible, and reducing the number of lacing wires, wherein the template is stable and firm and the size is accurate.

c, the cement millstone mortar belt with the width of 5-10 cm and the thickness of 2cm can be manufactured under the template, so that the level and elevation accuracy of the template are ensured.

d, the strength of the concrete when the form is removed must meet the design requirement, the design must not be lower than 2.5Mpa when no requirement exists, and the temperature must not be too high when the form is removed, so that the concrete is prevented from cracking due to cooling when contacting air, and the concrete cannot be poured for cold water maintenance at the moment. The mould is not removed before the temperature of the concrete begins to be reduced and the temperature of the concrete is highest.

e, the removal of the template and the bracket is performed according to the sequence of first supporting and then removing, and then supporting and first removing.

4. Concrete pouring

and a, concrete adopts commercial concrete, tank truck transportation, chute casting construction and plug-in vibrator vibration. The chute is required to be installed firmly, stably and conveniently.

b, keeping the road for transporting the concrete smooth and flat, and ensuring the concrete in the transportation process

The uniformity is maintained, no layering and segregation are caused when the material is transported to a pouring site, and the material has the required slump and air content and other working performances.

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

d, the vibration depth of the vibrator is generally not more than 2/3-3/4 times of the length of the rod, and the vibrator is required to be quickly inserted and pulled out during vibration, so that the vibrator is continuously moved up and down, the vibrator is uniformly tamped, and air bubbles on the surface of concrete are reduced. The moving distance of the vibrating bars is not more than 40cm, the distance between the vibrating bars and the side dies is kept between 5 and 10cm, and the vibrating duration is 20 to 30 seconds for each vibrating part, so that the concrete at the part is not sunk, no air bubbles appear, and the surface presents slurry, thereby preventing over vibration and leakage vibration.

And e, in the process of vibrating the concrete, the stability of the support of the inspection template and the sealing condition of the joint are enhanced so as to prevent slurry leakage. And (5) trowelling the concrete surface by using an iron trowelling.

And (IV) the strength of the pipe joint concrete meets the design requirement:

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

And (V) joint treatment:

the joint of the pipe joint is 1: and 3, making a pipe belt with the thickness of 3cm and the width of 15cm from cement mortar, trowelling the inside of the pipe by using the mortar, and coating two layers of asphalt on the pipe belt and the pipe body part. The settlement joint is filled with asphalt hemp batting, asphalt immersed hemp cloth is paved on the joint, and then 2cm thick hemp ropes are wound on the joint, and 15cm wide asphalt immersed hemp cloth is wound on the coarse hemp ropes.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will be within the scope of the present utility model.

The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model; various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a pipe is assisted and is contained structure which characterized in that includes: culvert, the culvert includes: the culvert body is used for flowing water; the holes are positioned at two ends of the culvert body and are used for discharging water flow in the culvert;

setting a settlement joint every 3-5m of the culvert;

the culvert body comprises: the pipe base and the pipe joint are sequentially arranged from bottom to top, the top of the pipe base is an arc surface, and the pipe base is tightly attached to the pipe joint; the pipe joint is provided with a spiral main rib for supporting the pipe joint, and the central line of the spiral main rib coincides with the central axis of the pipe joint;

the spiral main rib includes: an inner ring and an outer ring; the inner ring and the outer ring are respectively arranged on the inner cylindrical surface and the outer cylindrical surface of the pipe joint;

the outside of the pipe joint is coated with two layers of asphalt.

2. The circular pipe auxiliary channel culvert structure according to claim 1, wherein a cushion layer is arranged at the lower part of the pipe base, and the cushion layer adopts an original road milling material.

3. The tubular auxiliary culvert structure of claim 1 wherein the cast concrete of the tubular base is divided into two parts, one of which is cast concrete at the bottom of the tubular section; the other part is casting concrete which is positioned above the bottom of the pipe joint after the pipe joint is installed on the pipe base.

4. The circular pipe auxiliary channel culvert structure according to claim 1, wherein mortar is used for trowelling at joints among pipe joints, pipe belts are sleeved on the outer sides of the joints, and asphalt is coated between the inner sides of the pipe belts and the pipe joints for sealing between the pipe belts and the pipe joints.

5. The tubular auxiliary culvert structure of claim 1, wherein the tubular strip uses 1:3 cement mortar, the thickness is 3cm, and the width is 15cm.

6. The circular pipe auxiliary channel culvert structure according to claim 4, wherein the sedimentation joint is filled with asphalt hemp batting, asphalt immersed hemp cloth is paved on the upper part of the sedimentation joint, the outer side of the asphalt immersed hemp cloth is positioned at the joint and is wound with a 2cm thick hemp rope, and the thick hemp rope is wound with 15cm wide asphalt immersed hemp cloth for sealing between adjacent pipe joints.

7. The circular pipe auxiliary culvert structure of claim 1, wherein an end face of the opening is provided with an end wall, and the end wall comprises: splayed wall, straight wall.

8. The circular pipe auxiliary culvert structure of claim 7, wherein the back slope of the vertical section of the splayed wall is 4:1, the wall top width is 40cm, and the vertical front edge width of the end wall foundation is 10cm.

9. The circular pipe auxiliary channel culvert structure of claim 7, wherein a drainage and irrigation ditch is arranged on the outer side of the end wall of the hole, and the drainage and irrigation ditch is used for draining rainwater out of the hole.

10. The tubular auxiliary culvert structure of any one of claims 1-9, wherein the pore size of the pipe section is phi 1.5m.