Drainage arch culvert structure, construction method of drainage arch culvert structure and slag yard drainage system

Abstract

The invention provides a drainage arch culvert structure, and belongs to the technical field of building construction. The arch ring is located above the foundation and serves as a drainage channel of the arch culvert body; the platform body is arranged on the foundation, clings to the side walls on the two sides of the arch ring and serves as a lateral protection structure; and the protection arch is arranged at the top of the platform body, covers the arch ring side arch and serves as a side arch protection structure. The drainage arch culvert structure composed of the foundation, the arch ring, the platform body and the protective arch is arranged at the bottom of the slag yard, a traditional scheme that a drainage blind ditch is arranged at the bottom of the slag yard can be replaced, the overflow area is larger than that of the drainage blind ditch, the drainage capacity is higher than that of the drainage blind ditch, slag materials can be prevented from invading the structural limit of the drainage blind ditch in the filling process, and a drainage channel cannot be blocked; the drainage effect cannot be influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a drainage arch culvert structure, a construction method of the drainage arch culvert structure, and a slag yard drainage system. Background Art

[0002] With the continuous development of the national economy, the number of large domestic engineering construction projects has been increasing. However, it is difficult to achieve earthwork balance during the construction period of many engineering projects. Therefore, it is necessary to arrange waste dumps to dispose of the excess earth and stone excavated during the construction period. When the scale of the waste dump reaches a certain level, the structural design of the drainage system will be crucial. The traditional solution is to first fill block stones from low to high at the bottom of the slag yard to form a blind ditch, and then fill slag materials in layers on the blind ditch to finally form a large slag yard.

[0003] There is a risk of uneven settlement of the foundation in the blind ditch. The block stone blind ditch is directly located on the original terrain, and after a certain period of time, uneven settlement of the foundation is likely to occur, directly affecting the effective drainage function of the blind ditch. The blind ditch relies on the relatively large pores between the block stones as the flow channel. The pore area in the cross-section is small, and the flow capacity is limited. It is difficult to achieve the purpose of rapid drainage when the upstream water inflow is large. The contact area between the block stones in the blind ditch and the slag materials is large. During the filling process of the slag materials, the earth and stone slag materials are easily encroached on the pores of the block stones in the blind ditch, resulting in a further reduction of the flow area and greatly affecting the flow capacity. During the operation period of the slag yard, the blind ditch is prone to scouring the soil and stone materials on the contact surface during the drainage process, taking away the fine particles, resulting in a certain degree of settlement of the slag yard and posing a safety hazard. Summary of the Invention

[0004] The present invention provides a drainage arch culvert structure to solve the defects of the blind ditch in the prior art.

[0005] The present invention provides a drainage arch culvert structure, including: a foundation, serving as the overall stress-bearing foundation of the arch culvert; an arch ring, located above the foundation, serving as the main drainage channel of the arch culvert; abutment bodies, provided on the foundation and closely attached to the side walls on both sides of the arch ring, serving as the lateral protection structure; and wing arches, provided on the top of the abutment bodies and covering the side arches of the arch ring, serving as the side arch protection structure.

[0006] According to the drainage arch culvert structure provided by the present invention, the foundation is a C25 reinforced concrete structure with a width of 6 m, a thickness of 1.5 m, cast in segments with each segment having a length of 10 m. A single layer of steel bars is laid inside the foundation, and steps are reserved for finishing at a height of 30 cm for each level during casting.

[0007] According to the drainage arch culvert structure provided by the present invention, the arched cross-section of the arch ring is C25 reinforced concrete with a single layer of steel bar configuration and a thickness of 60 cm.

[0008] A drainage arch culvert structure provided by the present invention, wherein the abutment is composed of a trapezoidal cross-section C25 concrete structure, the upper base width of the trapezoidal cross-section is 40 cm, the lower base width is 60 cm, and the height is 175 cm.

[0009] A drainage arch culvert structure provided by the present invention, wherein the protective arch is composed of a triangular cross-section C25 concrete structure, the hypotenuse length of the triangular cross-section is 50 cm, covering the connection between the arch ring and the abutment.

[0010] The present invention also provides a construction method for a drainage arch culvert structure, including the following steps: S1: After clearing the surface of the slag yard and excavating the foundation, pour a C25 reinforced concrete foundation with a width of 6 m and a thickness of 1.5 m, pour in sections with each section being 10 m long, lay single-layer steel bars and finish with a step of 30 cm high in stages; S2: After the foundation reaches the strength, install the formwork and pour a C25 reinforced concrete arch ring with a thickness of 60 cm; S3: After the arch ring reaches the strength, pour a trapezoidal cross-section abutment on the foundation, with an upper base of 40 cm, a lower base of 60 cm, and a height of 175 cm; S4: After the abutment reaches the strength, pour a triangular protective arch with a hypotenuse length of 50 cm.

[0011] According to a construction method for a drainage arch culvert structure provided by the present invention, the steel bars of the foundation in step S1 are arranged in a single-layer and two-way manner.

[0012] According to a construction method for a drainage arch culvert structure provided by the present invention, the joint between the abutment and the side wall of the arch ring in step S3 is treated by roughening.

[0013] According to a construction method for a drainage arch culvert structure provided by the present invention, the pouring of the protective arch in step S4 is formed integrally with the top of the abutment.

[0014] The present invention also provides a slag yard drainage system, including the above-mentioned drainage arch culvert structure to replace the traditional drainage blind ditch, which is arranged at the bottom of the slag yard.

[0015] The drainage arch culvert structure provided by the present invention, by setting a drainage arch culvert structure composed of a C25 reinforced concrete foundation, an arch ring, an abutment and a protective arch at the bottom of the slag yard, can replace the traditional scheme of setting a drainage blind ditch at the bottom of the slag yard. It has a larger flow-through area than the drainage blind ditch, stronger drainage capacity, and can avoid the intrusion of slag materials into the structural limit of the drainage blind ditch during the slag filling process, will not cause blockage to the drainage channel, and will not affect the drainage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a process cross-sectional view of the drainage arch culvert structure provided by the present invention; Figure 2 It is a schematic structural diagram of the steps inside the drainage arch culvert structure provided by the present invention.

[0018] Reference numerals: 100, foundation; 200, arch ring; 300, abutment body; 400, protective arch; 500, steps. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions in the present invention in conjunction with the drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on Figure 1 the orientation and position when the shown drainage arch culvert structure is placed normally, and are only for the convenience of describing the present invention and simplifying the description. Without contrary explanations, these orientation words do not indicate and imply that the indicated devices or elements must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0022] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments may be combined with each other.

[0023] The present invention provides a drainage arch culvert structure, including: a foundation 100, serving as the overall force-bearing foundation 100 of the arch culvert; an arch ring 200, located above the foundation 100 and serving as the main drainage channel of the arch culvert; a abutment 300, provided on the foundation 100 and closely attached to the side walls on both sides of the arch ring 200, serving as a lateral protection structure; and a protective arch 400, provided on the top of the abutment 300 and covering the side arches of the arch ring 200, serving as a side arch protection structure.

[0024] In one embodiment, the foundation 100 is a C25 reinforced concrete structure, with a width of 6 m, a thickness of 1.5 m, cast in segments with each segment having a length of 10 m. A single layer of steel bars is laid inside the foundation 100, and when casting, a step 500 with a height of 30 cm per level is reserved for finishing.

[0025] By setting the reinforced concrete foundation 100 base in the present invention, it can ensure that the drainage structure is located on a stable foundation 100, effectively avoiding problems such as uneven settlement caused by the direct placement of the drainage system on the original terrain, resulting in the fracture and blockage of the drainage structure, and affecting the flood discharge function of the drainage system. Concrete steps are provided inside the arch culvert, with each step 500 having a height of 30 cm, which can play a role in dissipating the energy of the flowing water.

[0026] In one embodiment, the arched cross-section of the arch ring 200 is C25 reinforced concrete with a single layer of steel bar configuration and a thickness of 60 cm.

[0027] In the present invention, the earth-rock slag and the flow-through section are effectively isolated by the reinforced concrete arch ring 200 structure, which can not only prevent the slag from occupying the flow-through surface of the drainage system and affecting the drainage effect, but also prevent soil erosion caused by the scouring of the slag by water flow during the operation period of the slag yard and the settlement of the slag yard due to the contact surface between the slag and the drainage structure.

[0028] In the present invention, the arch ring 200 can solidify the bottom drainage structure of the slag yard, greatly ensuring the flow-through section, enabling the water flow to flow out smoothly through the arch ring 200, and greatly improving the flood discharge capacity of the slag yard.

[0029] In one embodiment, the abutment 300 is composed of a trapezoidal cross-section C25 concrete structure, with the upper base width of the trapezoidal cross-section being 40 cm, the lower base width being 60 cm, and the height being 175 cm.

[0030] In one embodiment, the protective arch 400 is composed of a triangular cross-section C25 concrete structure, with the hypotenuse length of the triangular cross-section being 50 cm, covering the connection between the arch ring 200 and the abutment 300.

[0031] The present invention effectively ensures the overall stability of the arch ring 200 by arranging abutment bodies 300 and protective arches 400 on both sides of the arch ring 200, avoiding the displacement of the drainage structure and the reduction of the flow capacity caused by the settlement of slag materials during the filling process of the slag yard.

[0032] A longitudinal drainage arch culvert is arranged at the bottom of the slag yard to ensure that the water coming from the upstream gully can be smoothly discharged to the downstream through the arch culvert, preventing the flowing water from scouring the surface of the slag yard. A stable drainage space is formed by four parts of the structure, namely the foundation 100, the arch ring 200, the abutment body 300 and the protective arch 400, and is completely isolated from the surrounding soil and stone slag materials.

[0033] The present invention provides a construction method for a drainage arch culvert structure, which is characterized by including the following steps: Step 1: After the surface cleaning of the slag yard and the excavation of the foundation 100, a C25 reinforced concrete foundation 100 with a width of 6 m and a thickness of 1.5 m is poured in sections of 10 m each. Single-layer steel bars are laid and the surface is finished step by step at a height of 30 cm. Clean the bottom area of the slag yard according to the surface cleaning process, lay out and mark the range of the arch culvert structure, check the condition of the foundation 100 within the marked range, clean the loose parts of the foundation 100, and backfill with stone slag to achieve the overall stability of the foundation 100 surface. Steel bars with a diameter of 16 mm and a spacing of 20 cm * 20 cm are arranged on the foundation 100 surface to ensure that the steel bars are not less than 5 cm away from the ground. Install and fix the formwork along the marked line, pour C25 concrete, vibrate and finish the formwork. After the initial setting, roughening is completed to form the foundation 100, and steps 500 with a height of 30 cm each are formed after finishing the surface.

[0034] Exemplarily, the steel bar configuration of the foundation 100 is single-layer and two-way arrangement.

[0035] Step 2: After the foundation 100 reaches the strength, install the formwork and pour a C25 reinforced concrete arch ring 200 with a thickness of 60 cm. After the formwork installation and steel bar installation of the arch ring 200 are completed, pour C25 concrete, vibrate and finish the formwork. After the concrete reaches the design strength, remove the formwork.

[0036] Exemplarily, the formwork of the arch ring 200 is an arched shaped steel formwork.

[0037] Step 3: After the arch ring 200 reaches the strength, pour a trapezoidal cross-section abutment body 300 on the foundation 100, with an upper base of 40 cm, a lower base of 60 cm and a height of 175 cm. Install the formwork on the side wall of the arch ring 200 and pour the concrete of the abutment body 300. The joint between the abutment body 300 and the side wall of the arch ring 200 is treated by roughening.

[0038] S4: After the abutment body 300 reaches the strength, pour a triangular protective arch 400 with an inclined hypotenuse of 50 cm.

[0039] Install a formwork on the abutment body 300 to pour the concrete of the arch protection 400, and the pouring of the arch protection 400 is formed integrally with the top of the abutment body 300 at one time.

[0040] The present invention provides a slag yard drainage system, which uses the above-mentioned drainage culvert structure to replace the traditional drainage blind ditch and is arranged at the bottom of the slag yard. The drainage culvert structures are arranged longitudinally at intervals along the bottom of the slag yard, and the interval is 20-30 m. The top of the drainage culvert structure is covered with an anti-filter geotextile and a slag filling layer.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A drainage arch culvert structure, characterized in that: include: The foundation serves as the overall load-bearing foundation of the arch culvert; An arch ring, located above the foundation, serves as a drainage channel for the main body of the arch culvert; The platform body is arranged on the foundation and is close to the side walls on both sides of the arch ring, serving as a lateral protection structure; The protective arch is arranged on the top of the platform body and covers the side arch of the arch ring, serving as a side arch protection structure.

2. The drainage arch culvert structure according to claim 1, characterized in that: The foundation is a C25 reinforced concrete structure with a width of 6m and a thickness of 1.5m. It is cast in sections and each section is 10m long. A single layer of steel bars is laid inside the foundation. When casting, steps are reserved with a height of 30cm per level.

3. The drainage arch culvert structure according to claim 2, characterized in that: The arched section of the arch ring is C25 reinforced concrete with a single layer of steel bars and a thickness of 60 cm.

4. The drainage arch culvert structure according to claim 3, characterized in that: The platform body is composed of a C25 concrete structure with a trapezoidal cross-section, the upper bottom width of the trapezoidal cross-section is 40 cm, the lower bottom width is 60 cm, and the height is 175 cm.

5. The drainage arch culvert structure according to claim 4, characterized in that: The protective arch is composed of a triangular section C25 concrete structure, the length of the hypotenuse of the triangular section is 50 cm, and covers the connection between the arch ring and the platform body.

6. A construction method for a drainage arch culvert structure, characterized in that: The following steps are involved: S1: After clearing the slag field and excavating the foundation, pour the 6m wide and 1.5m thick C25 reinforced concrete foundation in sections of 10m each, lay a single layer of steel bars and finish the surface in 30cm high steps; S2: After the foundation reaches the required strength, the formwork is installed and a 60 cm thick C25 reinforced concrete arch ring is poured; S3: After the arch ring reaches the required strength, a trapezoidal cross-section platform is cast on the foundation, with an upper bottom of 40 cm, a lower bottom of 60 cm, and a height of 175 cm; S4: After the platform body reaches a certain strength, a triangular protective arch with a hypotenuse length of 50 cm is cast.

7. The construction method of the drainage arch culvert structure according to claim 6, characterized in that: The reinforcement configuration of the foundation described in step S1 is a single-layer bidirectional arrangement.

8. According to the construction method of the drainage arch culvert structure of claim 6, in step S3, the joint between the platform body and the side wall of the arch ring is roughened.

9. According to the construction method of the drainage arch culvert structure as claimed in claim 6, the casting of the arch protection in step S4 is formed at the same time as the top of the platform body.

10. A slag dump drainage system, characterized in that: The drainage arch culvert structure described in any one of claims 1 to 5 is used to replace the traditional drainage blind ditch and is arranged at the bottom of the slag yard.

Images