Overflow hub system

Abstract

An overflow hub system comprises an overflow dam transversely arranged in a riverbed, piers are fixedly arranged on the top of the overflow dam at intervals in the length direction of the overflow dam, a bridge body is installed on the piers, the two ends of the bridge body are connected with management areas, the management areas are located on the two sides of the riverbed, the overflow dam comprises a dam core of a cemented sand gravel structure, and the dam core is fixedly wrapped with a dam face. The dam core can be used as an inner formwork of the dam face, on-site integrated pouring forming of the dam face of the overflow dam is facilitated, dam face construction joints are avoided, meanwhile, arrangement of reinforcing steel bars of the bridge pier can be facilitated through arrangement of the dam core, the bridge pier can be poured on site, the bridge pier and the dam body of the overflow dam can be effectively and integrally formed, bridge body installation is facilitated, and construction efficiency is improved. The bottom of the bridge body can be supported by the bridge piers, and the bridge can be suitable for riverbeds with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy structures, in particular to an overflow hub system. Background Art

[0002] An overflow dam is generally a solid dam made of concrete or mortar-made stone for storing water or raising the water level. According to the dam type, there are overflow gravity dam, overflow arch dam, overflow pier dam and overflow earth-rock dam. Its main function is to intercept upstream water and store or raise the water level to meet the requirements of irrigation, water supply, landscape environment, etc. When a flood comes, a large amount of flood overflows from the dam and is discharged downstream.

[0003] At present, the requirements for water conservancy projects are gradually increasing. Not only are water conservancy projects required to have the purpose of promoting benefits, but they must also be more beautiful and practical. There are now overflow landscape dams with composite arch dams and arch bridges (such as publication number CN208167663U). An arch bridge is set on the dam top, and the water flow on the upstream side of the arch dam passes through the top of the overflow dam to produce a waterfall landscape. The arch bridge can solve the traffic problem on the top of the arch dam and facilitate tourists to appreciate the corresponding landscape. It not only solves the traffic problem on the top of the arch dam, but also provides a beautiful dam type.

[0004] The existing overflow landscape dam is an overall reinforced concrete structure with high manufacturing cost. In addition, it is limited by the construction method of supporting and dismantling the formwork. The existing reinforced concrete overflow dam needs to be cast in parts (first the wall, then the dam top), and there are construction joints on the dam surface. In addition, the bridge deck on the top of the existing overflow landscape dam is supported by the side piers at both ends. The side piers are located on both sides of the dam body, and the supporting capacity of the bridge deck is limited, which cannot be applied to a wide riverbed. Utility Model Content

[0005] In order to solve the technical problems in the above-mentioned background technology that the existing overflow landscape dam has poor applicability, high manufacturing cost and poor quality, the utility model provides an overflow hub system.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an overflow hub system, comprising: an overflow dam arranged transversely in a riverbed, bridge piers are fixedly arranged at intervals on the top of the overflow dam along the length direction thereof, a bridge body is installed on the bridge piers, management areas are connected to both ends of the bridge body, the management areas are located on both sides of the riverbed, the overflow dam comprises a dam core of a cemented gravel structure, a reinforced concrete dam surface is fixedly covered on the outside of the dam core, the dam core can be used as an inner template of the dam surface, and the overflow dam surface is convenient for integrally casting and forming on site, and the generation of construction joints on the dam surface is avoided. At the same time, the arrangement of the dam core and the reinforced concrete dam surface can facilitate the arrangement and fixation of the steel bars of the piers, so as to cast the piers on site, so that the piers can be effectively integrally formed with the dam body of the overflow dam, the installation of the bridge body is convenient, and the bottom of the bridge body can have pier supports, and the bridge body can be suitable for riverbeds of different widths.

[0008] Preferably, the overflow dam includes a bottom plate, the dam core is placed on the bottom plate, and the dam surface is fixedly connected to the dam core and the bottom plate as a whole, thereby ensuring the overall strength of the overflow dam.

[0009] Preferably, the dam surface and bottom plate are both reinforced concrete structures, which reduces engineering costs and ensures the overall strength of the spillway.

[0010] Preferably, the cross-section of the dam core is a right-angled trapezoid, which makes it easy to use the dam core as an inner template for the dam surface and facilitate the integral casting and molding of the overflow dam surface on site.

[0011] Preferably, the top of the overflow dam is a plane, the two sides of the overflow dam are the upstream dam surface and the overflow surface respectively, there is an arc transition between the dam top and the upstream dam surface and the overflow surface, and the bottom end of the overflow surface is an arc transition, which exerts an impact force for overflow discharge.

[0012] Preferably, a cushion layer is provided at the bottom of the overflow dam to ensure the construction flatness of the overflow dam and the supporting stability of the riverbed to the overflow dam.

[0013] Preferably, an anti-seepage wall is fixedly connected to the bottom of the overflow dam, and the bottom of the anti-seepage wall extends into the soil layer, effectively ensuring the anti-seepage effect.

[0014] Preferably, railings are fixedly provided on both sides of the bridge body and around the management area close to the riverbed to improve safety performance.

[0015] It can be seen from the above technical solutions that the advantages of the utility model are:

[0016] 1. The overflow dam includes a dam core of a cemented gravel structure, and the outside of the dam core is covered and fixed with a dam surface. The dam core uses engineering excavation materials, which reduces engineering costs and can also be used as an internal template for the dam surface, facilitating the integral casting of the overflow dam surface on site and avoiding the formation of construction joints on the dam surface. At the same time, the setting of the dam core can facilitate the arrangement of steel bars for the piers, thereby casting the piers on site, so that the piers can be effectively integrated with the overflow dam, facilitating the installation of the bridge body, and enabling the bottom of the bridge body to have pier support, which can be suitable for riverbeds of different widths.

[0017] 2. The cross section of the dam core is a right-angle trapezoid, which makes it easy to use the dam core as the inner template of the dam surface and to facilitate the integral casting of the overflow dam surface on site.

[0018] 3. A cushion layer is provided at the bottom of the overflow dam and an anti-seepage wall is fixedly connected to the bottom of the overflow dam. The bottom of the anti-seepage wall extends into the soil layer, which effectively ensures the anti-seepage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of the overflow hub system according to one or more embodiments of the present invention;

[0021] Figure 2 It is a schematic cross-sectional structure diagram of an overflow hub system according to one or more embodiments of the present invention;

[0022] The components represented by the reference numerals in the figure are:

[0023] 1. Bridge body; 2. Overflow dam; 21. Dam core; 22. Upstream dam surface; 23. Overflow surface; 24. Bottom plate; 3. Pad layer; 4. Anti-seepage wall; 5. Bridge pier; 6. Cap beam; 7. Bridge deck; 8. Railing; 9. Management area; 10. Steel bars. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] In a typical implementation of the present invention, Figure 1-Figure 2 As shown, an overflow hub system is proposed, including: a bridge body 1, an overflow dam 2 and a management area 9. The overflow dam 2 is arranged horizontally in the riverbed, and management areas 9 are arranged on both sides of the riverbed. The top of the overflow dam 2 is fixedly provided with a plurality of piers 5 at intervals along its length direction. The bridge body 1 is arranged on the piers 5. Both ends of the bridge body 1 are connected to the management area 9. The bridge body 1 can allow management personnel to pass through to meet the needs of engineering management, traffic management and landscape.

[0026] Overflow dam 2 is a "gold-covered silver" structure. Figure 2 As shown, the overflow dam 2 includes a dam core 21, a dam surface and a bottom plate 24. The dam core 21 is located above the bottom plate 24, and the dam surface covers the outside of the dam core 21. The dam surface is fixedly connected with the dam core 21 and the bottom plate 24 as a whole. The dam core 21 is a cementitious gravel structure, and the dam surface and the bottom plate 24 are both reinforced concrete structures. The cement content of the dam core 21 of the cementitious gravel structure is 15%, and the compacted relative density is not less than 0.75. The filling material is gravel coarse sand excavated from the foundation pit, which effectively reduces the use and manufacturing costs. At the same time, the cross-section of the dam core 21 is a right-angled trapezoid, and the dam core 21 can be used as an inner template of the dam surface, which is convenient for the integral casting and molding of the overflow dam surface on site, avoiding the generation of construction joints on the dam surface.

[0027] Since the dam surface can be integrally cast on site, combined with the setting of the dam core 21, it is convenient to arrange the steel bars 10 of the pier 5, so that the pier 5 can be cast on site, so that the pier 5 can be effectively integrally formed with the dam body of the overflow dam 2, which facilitates the installation of the bridge body 1 and enables the bottom of the bridge body 1 to be supported by the pier 5, which is suitable for riverbeds of different widths.

[0028] like Figure 2 As shown, the top of the overflow dam 2 is a plane, and the two sides of the overflow dam 2 are the upstream dam surface 22 and the overflow surface 23 respectively. There is an arc transition between the top of the dam and the upstream dam surface 22 and the overflow surface 23, and the bottom end of the overflow surface 23 is also an arc transition.

[0029] The bridge body 1 includes a cap beam 6 and a bridge deck 7. The cap beam 6 is fixedly arranged on the top of the pier 5 and connects adjacent piers 5. The cap beam 6 can be a cast-in-place structure or a prefabricated structure. The bridge deck 7 is placed on the cap beam 6.

[0030] A cushion layer 3 is provided at the bottom of the overflow dam 2. In this embodiment, the bottom plate 24 and the dam surface are both C30 reinforced concrete structures, the cushion layer 3 is a C15 plain concrete structure, and the thickness of the cushion layer 3 is 100 mm. An anti-seepage wall 4 is fixedly connected to the bottom of the overflow dam 2. The anti-seepage wall 4 is located between the upstream dam surface 22 and the overflow surface 23, and is adjacent to the upstream dam surface 22, playing an anti-seepage role. The anti-seepage wall 4 is a plastic concrete structure, and the bottom of the anti-seepage wall 4 extends into the soil layer by 1 m.

[0031] Railings 8 are fixedly provided on both sides of the bridge body 1 and the surrounding sides of the management area 9 close to the riverbed to improve safety. In this embodiment, the railings 8 are antique wooden railings to improve their aesthetics. In other embodiments, they can also be metal railings, etc. The specific structure can be determined according to actual needs.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An overflow hub system, comprising: An overflow dam (2) is transversely arranged in a riverbed, characterized in that bridge piers (5) are fixedly arranged at intervals along the length direction of the overflow dam (2), a bridge body (1) is installed on the bridge piers (5), and management areas (9) are connected to both ends of the bridge body (1), and the management areas (9) are located on both sides of the riverbed. The overflow dam (2) includes a dam core (21) of a cemented gravel structure, and the outside of the dam core (21) is covered and fixed with a dam surface.

2. An overflow hub system according to claim 1, characterized in that: The overflow dam (2) comprises a bottom plate (24), a dam core (21) is placed on the bottom plate (24), and the dam surface, the dam core (21) and the bottom plate (24) are fixedly connected as a whole.

3. An overflow hub system according to claim 2, characterized in that: The dam surface and the bottom plate (24) are both reinforced concrete structures (10).

4. The overflow hub system according to claim 1, characterized in that: The cross section of the dam core (21) is a right-angle trapezoid.

5. The overflow hub system according to claim 1, characterized in that: The top of the overflow dam (2) is a plane, the two sides of the overflow dam (2) are respectively an upstream dam surface (22) and an overflow surface (23), the top of the dam and the upstream dam surface (22) and the overflow surface (23) are in a circular arc transition, and the bottom end of the overflow surface (23) is in a circular arc transition.

6. The overflow hub system according to claim 1, characterized in that: A cushion layer (3) is provided at the bottom of the overflow dam (2).

7. The overflow hub system according to claim 1, characterized in that: The bottom of the overflow dam (2) is fixedly connected to an anti-seepage wall (4), and the bottom of the anti-seepage wall (4) extends into the soil layer.

8. The overflow hub system according to claim 1, characterized in that: Railings (8) are fixedly provided on both sides of the bridge body (1) and the peripheral side of the management area (9) close to the riverbed.

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