Corrugated steel flume

Abstract

The present application relates to a kind of corrugated steel flume, including flume body, flume pillar and flume connecting claw seat, the flume body includes multiple groups of sequentially connected corrugated steel flume unit, flume body is formed in water passage, flume body lower end is connected with flume pillar by flume connecting claw seat, the flume pillar includes pile foundation and the corrugated steel pier column being arranged on pile foundation, several corrugated steel pier column is erected in the air and across barrier with the flume body.The corrugated steel flume of the present application, the wave shape structure of wave flume body can also improve its bending stiffness and shear capacity, so that it can adapt to different terrain and span, with simple structure, convenient construction, low cost, good anti-seismic performance and other characteristics, can be applied to the crossing of various terrain and barrier, improve the safety and stability of flume, while also saving material and human resources.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, and more specifically, to a corrugated steel aqueduct. Background Technology

[0002] An aqueduct is a hydraulic engineering facility primarily used to transport water from one place to another to meet needs such as irrigation, water supply, flood control, and water diversion. Aqueducts typically need to cross obstacles such as ditches, roads, and valleys, thus requiring them to be erected in the air or buried underground. Based on their location and method of erection, aqueducts can be broadly classified into two categories: elevated aqueducts and tunnel aqueducts. Based on the structural materials, elevated aqueducts are often further divided into reinforced concrete aqueducts, prestressed concrete aqueducts, and masonry aqueducts, among others.

[0003] Reinforced concrete aqueducts refer to aqueducts that use reinforced concrete as the main structural material. They have advantages such as high strength, good durability, and convenient construction, but also disadvantages such as large weight, high cost, and easy cracking. To improve the durability and seismic resistance of reinforced concrete aqueducts, prestressed tendons are usually installed in the concrete of the aqueduct to provide prestress and resist tensile stress, thus forming a prestressed concrete aqueduct. Prestressed tendons are usually composed of steel strands or wires, which are threaded into the concrete through corrugated pipes or other protective pipes and fixed at both ends by anchors. They have advantages such as high strength, small deformation, and good crack resistance, but also have disadvantages such as high cost, complex construction, and the need for tensioning equipment.

[0004] Masonry aqueducts, as the name suggests, are aqueducts that use masonry as the main structural material. They have advantages such as wide availability of materials, diverse shapes, and strong adaptability, but also disadvantages such as poor earthquake resistance, difficult maintenance, and poor seepage prevention.

[0005] In summary, most existing aqueducts use concrete or reinforced concrete as their main materials. These materials are heavy, which increases the aqueduct's self-weight, raises the load-bearing requirements of the foundation, and increases the difficulty of construction. At the same time, these materials have poor corrosion resistance and are easily eroded by factors such as water flow, climate, and chemicals, affecting the service life and safety of the aqueduct. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to propose a corrugated steel aqueduct to overcome the problems of complex structure, high construction cost and easy cracking of the existing overhead aqueduct.

[0007] To achieve the above objectives, the technical solution proposed by this invention is as follows: A corrugated steel aqueduct includes an aqueduct body, aqueduct supports, and aqueduct connecting claw seats. The aqueduct body includes multiple sets of corrugated steel aqueduct units connected in sequence, forming a water passage within the aqueduct body. The lower end of the aqueduct body is connected to the aqueduct supports through the aqueduct connecting claw seats. The aqueduct supports include pile foundations and corrugated steel piers set on the pile foundations. Several corrugated steel piers support the aqueduct body in the air and span over obstacles.

[0008] Furthermore, the cross-section of the aqueduct body is U-shaped, V-shaped, trapezoidal, or circular.

[0009] Furthermore, the corrugated steel aqueduct unit is formed by bending corrugated steel plates. The corrugation line of the corrugated steel aqueduct unit is perpendicular or parallel to the water flow direction. Aqueduct unit connecting flanges are set at both ends of the corrugated steel aqueduct unit, and adjacent corrugated steel aqueduct units are connected after facing each other through the aqueduct unit connecting flanges.

[0010] Furthermore, the corrugated steel pier column includes several corrugated steel pipes, with steel pipe flanges installed at both ends of the corrugated steel pipes. Adjacent corrugated steel pipes are connected by aligning the steel pipe flanges. The bottommost corrugated steel pipe is bolted to the pile foundation through a steel pipe flange.

[0011] Furthermore, a wire mesh is installed inside the corrugated steel pier and filled with reinforcing filler.

[0012] Furthermore, the connecting claw seat includes a base, a pair of supporting claws disposed on the upper surface of the base, and an insertable bottom cylinder disposed on the lower surface of the base; the base is a flat plate structure, the pair of supporting claws are disposed parallel to each other on the base, the upper notch of the supporting claws matches the outer contour of the aqueduct body, several bolt connection holes are opened on the supporting claws, the supporting claws support the aqueduct body, and the supporting claws and the connecting flange of the aqueduct unit are stacked and bolted together; the insertable bottom cylinder is a cylindrical structure, the outer diameter of which is smaller than the inner diameter of the corrugated steel pipe, and the cylindrical structure is inserted into the topmost section of the corrugated steel pipe and fixed thereto; intersecting reinforcing ribs are provided on the base.

[0013] Furthermore, a retaining ring is fixedly installed on the outer wall of the insertion bottom cylinder. The insertion bottom cylinder is inserted into the corrugated steel pipe, and its retaining ring abuts against the steel pipe flange ring at the top of the corrugated steel pipe. A pressure ring is also installed above the retaining ring. The pressure ring, retaining ring and steel pipe flange ring are connected as a whole by several circumferentially arranged bolts.

[0014] Furthermore, the pressure ring is provided with several bolt connection holes in its circumference, the retaining ring has a toothed structure, the notch of the toothed structure is used for bolts to pass through, and the steel pipe flange is provided with corresponding bolt connection holes.

[0015] Furthermore, along the direction of water flow, several longitudinal beams are installed outside the aqueduct body; or, Several longitudinal ribs are installed in the body of the aqueduct along the direction of water flow.

[0016] Furthermore, a smooth inner lining layer is laid inside the water passage, and the smooth inner lining layer can be prefabricated segments.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The corrugated steel aqueduct of the present invention has a corrugated structure that can improve its bending stiffness and shear strength, making it adaptable to different terrains and spans. It has the characteristics of simple structure, convenient construction, low cost, and good seismic performance. It can be used to cross various terrains and obstacles, improve the safety and stability of the aqueduct, and save materials and human resources. It is an environmentally friendly and economical aqueduct structure.

[0018] Of course, implementing the various technical solutions of this invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a connection diagram of the corrugated steel aqueduct unit in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the aqueduct support column in Embodiment 1 of the present invention; Figure 4 This is a three-dimensional structural diagram of the connecting claw seat according to Embodiment 1 of the present invention; Figure 5 This is a front view of the connecting claw seat in Embodiment 1 of the present invention; Figure 6 yes Figure 5 AA side sectional view; Figure 7 This is a schematic diagram of the retaining ring in Embodiment 1 of the present invention.

[0021] In the figure, 1-aqueduct body, 101-corrugated steel aqueduct unit, 102-aqueduct unit connecting flange, 103-sealing element; 2-Water passage; 3-Aqueduct connecting claw seat, 301-Bearing platform, 302-Supporting claw body, 303-Retaining ring, 304-Pressure ring, 305-Reinforcing rib, 306-Insertion bottom cylinder; 4-Pile foundation; 5-Corrugated steel pier, 501-Corrugated steel pipe, 502-Steel pipe flange ring; 6-Mountain; 7-High-strength bolts; 8-Highway. Detailed Implementation

[0022] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0023] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0024] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Example 1: This embodiment provides a corrugated steel chute, the structural schematic diagram of which is shown below. Figure 1 As shown.

[0026] To better illustrate the structure and principle of the aqueduct of this invention, in this embodiment, the corrugated steel aqueduct is applied at the location of the road 8 adjacent to a mountain, used to divert channel water from the mountain 6 across the road 8 into a river or ditch. One end of the corrugated steel aqueduct is connected to the channel in the mountain 6, the main body of the corrugated steel aqueduct is elevated and spans the road 8, and the other end of the corrugated steel aqueduct is connected to the ditch or river, serving the functions of water conveyance, flood discharge, or flow diversion. It should be noted that in other embodiments, this corrugated steel aqueduct can be applied to cross ditches, valleys, railways, buildings, and other obstacles.

[0027] A corrugated steel aqueduct includes an aqueduct body 1, aqueduct supports, and aqueduct connecting claw seats 3. The aqueduct body 1 includes multiple sets of corrugated steel aqueduct units 101 connected in sequence. A water passage 2 is formed inside the aqueduct body 1. The lower end of the aqueduct body 1 is connected to the aqueduct supports through the aqueduct connecting claw seats 3. The aqueduct supports include pile foundations 4 and corrugated steel piers 5 set on the pile foundations 4. Several corrugated steel piers 5 support the aqueduct body 1 in the air and cross the highway 8.

[0028] The pile foundation 4 connects the tops of several piles into a whole through a concrete cap, which together bears the dynamic and static loads. The piles are vertical or inclined foundation components set in the soil. The function of the pile foundation 4 is to transfer the load from the aqueduct body 1 and the corrugated steel piers 5 to the soil layer with good bearing capacity at a deeper underground, so as to meet the requirements of bearing capacity and settlement.

[0029] In this embodiment, the cross-section of the aqueduct body 1 is U-shaped, such as... Figure 2 As shown. The corrugated steel aqueduct unit 101 is formed by the arc of corrugated steel plate. The direction of the corrugation line of the corrugated steel aqueduct unit 101 is perpendicular to the direction of water flow. Aqueduct unit connecting flanges 102 are welded to both ends of each corrugated steel aqueduct unit 101. In this embodiment, the aqueduct unit connecting flanges 102 are semi-circular. Bolt connection holes are opened on the aqueduct unit connecting flanges 102. After the aqueduct unit connecting flanges 102 of adjacent corrugated steel aqueduct units 101 are aligned, they are bolted together by high-strength bolts 7. In order to enhance the sealing effect of the aqueduct body 1 during water transport, sealant is applied to the contact surface of the aqueduct unit connecting flanges 102 or a sealing element 103 is set, and sealing gaskets are set at the bolt connection holes.

[0030] See Figure 3 The corrugated steel pier 5 is a support system composed of corrugated steel pipes 501, which has advantages such as lightweight, high strength, corrosion resistance, and ease of construction. The corrugated steel pipe 501 is a circular hollow tube rolled from corrugated steel plate, with a regular corrugated shape on its surface, effectively improving the rigidity and load-bearing capacity of the pipe wall. Each section of corrugated steel pipe is 2-3 meters high. Steel pipe flanges 502 are welded to both ends of the corrugated steel pipe 501. The steel pipe flanges 502 are annular steel plate structures with an inner diameter the same as the outer diameter of the corrugated steel pipe, and several bolt holes are circumferentially formed on their outer edge.

[0031] Adjacent corrugated steel pipe sections are butted together by steel pipe flanges 502 and fixed with high-strength bolts 7. The steel pipe flange of the bottom corrugated steel pipe section 501 is connected to the pile foundation 4 by anchor bolts, so that the corrugated steel pier is firmly fixed on the pile foundation 4.

[0032] To improve the stability and seismic resistance of corrugated steel piers, in other embodiments, a wire mesh is laid inside the corrugated steel pipe. This wire mesh, woven from metal wires, increases the shear and tensile strength within the corrugated steel pipe. Reinforcing fillers, such as cement mortar or concrete, are filled into the gaps in the wire mesh to increase the compressive and impact strength within the corrugated steel pipe. This aqueduct support design effectively withstands the loads of the aqueduct itself and external forces such as earthquakes, ensuring the safety and stability of the aqueduct.

[0033] See Figure 4 and Figure 5 The aqueduct connecting claw seat 3 is a connector between the corrugated steel pier 5 and the aqueduct body 1. Its lower end connects to the corrugated steel pier 5, and its upper end supports and connects to the aqueduct body 1. The aqueduct connecting claw seat 3 includes a base 301, a pair of supporting claws 302 disposed on the upper surface of the base 301, and an insertable bottom cylinder 306 disposed on the lower surface of the base 301. The base 301 is a rectangular flat plate structure, with its outer diameter larger than that of the corrugated steel pipe 501 to ensure the overall stability of the aqueduct connecting claw seat 3. The base 301 is made of steel plate. The pair of supporting claws 302 are arranged parallel to each other on the upper surface of the base 301. The upper notches of the supporting claws 302 match the outer contour of the aqueduct body 1 to tightly connect and clamp the aqueduct body 1. The supporting claws 302 are also made of steel plate. Several bolt holes are provided on the supporting claws 302. The number, position, and size of the bolt holes are consistent with the bolt holes on the aqueduct unit connecting flange 102. The supporting claw body 302 supports the aqueduct body 1. The supporting claw body 302 and the connecting flange 102 of the aqueduct unit are stacked and then bolted together by high-strength bolts 7 to form a solid upper connection structure.

[0034] The insertion base tube 306 is a cylindrical structure, welded to the lower end face of the bearing platform 301 to ensure that the insertion base tube 306 can be smoothly inserted into the corrugated steel pipe 501. The material of the insertion base tube 306 is steel pipe. After the insertion base tube 306 is inserted into the top corrugated steel pipe section, it is fixed to it. The fixing method can be welding, bolts, or other reliable methods.

[0035] See Figure 6In this embodiment, the fixing method for the insertion base cylinder 306 and the corrugated steel pipe 501 is a bolt connection using a pressure ring 304. A retaining ring 303 is fixedly installed on the outer wall of the insertion base cylinder 306. When the insertion base cylinder 306 is inserted into the corrugated steel pipe 501, its retaining ring 303 abuts against the steel pipe flange ring 502 at the top of the corrugated steel pipe 501. A pressure ring 304 is also provided above the retaining ring 303. From top to bottom, the pressure ring 304, the retaining ring 303, and the steel pipe flange ring 502 are connected as a whole by several high-strength bolts 7 that pass through them and are arranged circumferentially. This bolt connection method can effectively reinforce the insertion base cylinder 306 and the corrugated steel pipe 501, preventing the insertion base cylinder 306 from sliding or falling off under stress.

[0036] In the aforementioned bolted fixing structure, bolt holes corresponding to the positions of the pressure ring 304, retaining ring 303, and steel pipe flange ring 502 need to be made. The stacking and bolting of these three components may lead to difficulties in aligning the holes. To solve this problem, see... Figure 7 In this embodiment, the retaining ring 303 is designed with a toothed structure, and the notch in the toothed structure is for high-strength bolts to pass through. In this way, the pressure ring 304 only needs to be aligned with the steel pipe flange ring 502, and does not need to be aligned with the retaining ring 303, thereby simplifying the difficulty and error of alignment. At the same time, the notch in the toothed structure can also play a role in positioning and preventing loosening, preventing the pressure ring 304 from rotating or moving under force.

[0037] Intersecting reinforcing ribs 305 are provided on the pier cap 301 to enhance its strength and rigidity. The reinforcing ribs 305 are made of steel plate. Through this design, the connecting claw seat 3 can more firmly connect the aqueduct body 1 and the corrugated steel pier 5, ensuring the integrity and safety of the aqueduct.

[0038] In practical applications, the aqueduct body may need to withstand large spans and loads, so its bending resistance needs to be considered.

[0039] One solution is to add longitudinal beams to the aqueduct body. These beams are long, strip-shaped structures made of steel plates or pipes, connected to the aqueduct body along the water flow direction, serving to strengthen and support it. The beams can be connected to the aqueduct body by welding, bolting, or other reliable methods. The number, location, and dimensions of the beams can be rationally designed and optimized according to the aqueduct's span and load. The advantage of this solution is that it effectively improves the aqueduct body's bending resistance, increases its stiffness and stability, and is suitable for large spans and heavy loads.

[0040] Another solution is to add longitudinal reinforcement within the aqueduct itself. These longitudinal reinforcements are long, strip-shaped structures made of steel bars or wires, connected to the interior of the aqueduct along the direction of water flow, serving to strengthen and support it. They can be connected to the aqueduct body by welding, bolting, or other reliable methods. The number, location, and size of the longitudinal reinforcements can be rationally designed and optimized according to the aqueduct's span and load. However, this solution may affect the aqueduct's internal sealing, as well as its appearance and the smoothness of water flow.

[0041] The corrugated steel aqueduct of this embodiment has the following technical advantages: This embodiment provides a corrugated steel aqueduct, which uses corrugated steel plates as the material for the aqueduct body and piers. It offers advantages such as lightweight, high strength, corrosion resistance, and ease of construction, reducing engineering costs and maintenance expenses while extending service life. This embodiment employs semi-circular aqueduct unit connecting flanges and supporting claws, effectively connecting adjacent corrugated steel aqueduct units and the aqueduct body, improving the overall integrity and stability of the aqueduct. It uses a pressure ring bolting method to fix the insert-type bottom cylinder and corrugated steel pipe, effectively reinforcing the connection and preventing the insert-type bottom cylinder from sliding or falling off under load. This embodiment uses a toothed retaining ring, simplifying the hole alignment and reducing errors in pressure ring bolting, while also providing positioning and anti-loosening functions, preventing the pressure ring from rotating or moving under load. This embodiment lays wire mesh inside the corrugated steel pipe and fills it with reinforcing filler, increasing the internal shear strength, tensile strength, compressive strength, and impact strength of the corrugated steel pipe, improving the stability and seismic resistance of the corrugated steel piers. In this embodiment, sealant or sealing elements are applied to the connecting flanges and bolt holes of the aqueduct unit, which enhances the sealing effect of the aqueduct body during water transport and prevents water leakage or external contamination. The corrugated steel aqueduct of this embodiment has technical advantages such as simple structure, convenient installation, strong connection, and reliable sealing.

[0042] Example 2: Example 2 provides a corrugated steel aqueduct, which differs from Example 1 in that precast segments are laid within the water passage to protect the inner wall of the aqueduct body and improve water passage efficiency. The precast segments are semi-circular reinforced concrete segments with an outer diameter that is the same as or slightly smaller than the inner diameter of the aqueduct body. Adjacent precast segments are connected by interlocking to form a continuous water passage.

[0043] In this embodiment, the inner wall of the prefabricated segments is smooth and flat, which can reduce water flow resistance and loss and improve water flow efficiency. The outer wall of the prefabricated segments is tightly fitted to the inner wall of the aqueduct body, which can protect the inner wall of the aqueduct body from water flow erosion and wear, and extend the service life of the aqueduct body.

[0044] Example 3: Example 3 provides a corrugated steel aqueduct, which differs from Example 1 or Example 2 in that the cross-section of the aqueduct body 1 is V-shaped.

[0045] Example 4: Example 4 provides a corrugated steel aqueduct, which differs from Example 1 or Example 2 in that the cross-section of the aqueduct body is trapezoidal.

[0046] Example 5: Example 4 provides a corrugated steel aqueduct, which differs from Example 1 or Example 2 in that the cross-section of the aqueduct body is circular, that is, the aqueduct body is a corrugated steel pipe.

[0047] Examples 3-5 show that by adjusting the cross-sectional shape of the aqueduct body, different water flow conditions and terrain conditions can be adapted to improve the performance and durability of the aqueduct body during water transport.

[0048] In the above embodiments, the waveform of the corrugated steel plate is a sinusoidal zigzag. In other embodiments, the waveform of the corrugated steel plate can also be selected as a triangular zigzag, trapezoidal zigzag, or right-angled zigzag, depending on the situation.

[0049] For those skilled in the art, various improvements and modifications can be made without departing from the principles of this invention, and these improvements and modifications should also be considered within the scope of protection of this invention.

Claims

1. A corrugated steel aqueduct, characterized in that, The aqueduct includes a main body, aqueduct supports, and aqueduct connecting claw seats. The main body includes multiple sets of corrugated steel aqueduct units connected in sequence. A water passage is formed within the main body. The lower end of the main body is connected to the aqueduct supports through the aqueduct connecting claw seats. The aqueduct supports include pile foundations and corrugated steel piers set on the pile foundations. Several corrugated steel piers support the main body in the air and cross obstacles. The cross-section of the aqueduct body is U-shaped. The corrugated steel aqueduct unit is formed by the arc of corrugated steel plate. The corrugated line of the corrugated steel aqueduct unit is perpendicular to the water flow direction. Aqueduct unit connecting flanges are welded to both ends of each corrugated steel aqueduct unit. The aqueduct unit connecting flange is semi-circular. Bolt connection holes are opened on the aqueduct unit connecting flange. The aqueduct unit connecting flanges of adjacent corrugated steel aqueduct units are aligned and then bolted together by high-strength bolts. The corrugated steel pier includes several corrugated steel pipes, which are circular hollow tubes made of corrugated steel plates. Both ends of the corrugated steel pipes are provided with steel pipe flanges. The steel pipe flanges are annular steel plate structures with an inner diameter that is the same as the outer diameter of the corrugated steel pipe. Several bolt connection holes are opened in annular shape on their outer edge. Adjacent corrugated steel pipes are connected by aligning the steel pipe flanges. The bottom section of the corrugated steel pipe is bolted to the pile foundation through the steel pipe flange. The aqueduct connecting claw seat includes a base, a pair of supporting claws disposed on the upper surface of the base, and an insert bottom cylinder disposed on the lower surface of the base. The base is a rectangular flat plate structure, and the outer contour of the base is larger than the outer diameter of the corrugated steel pipe. The pair of supporting claws are disposed parallel to each other on the base. The upper notch of the supporting claw matches the outer contour of the aqueduct body. Several bolt connection holes are opened on the supporting claws. The number, position, and size of the bolt connection holes on the supporting claws are consistent with the bolt connection holes on the aqueduct unit connecting flange. The supporting claws support the aqueduct body. The supporting claws and the aqueduct unit connecting flange are stacked and bolted together by high-strength bolts. The insertion bottom cylinder is a cylindrical structure and welded to the lower end face of the bearing platform. The outer diameter of the insertion bottom cylinder is smaller than the inner diameter of the corrugated steel pipe. After the insertion bottom cylinder is inserted into the topmost corrugated steel pipe, it is fixed to it. A retaining ring is fixedly installed on the outer wall of the insertion bottom cylinder. When the insertion bottom cylinder is inserted into the corrugated steel pipe, the retaining ring abuts against the steel pipe flange ring at the top of the corrugated steel pipe. A pressure ring is also installed above the retaining ring. From top to bottom, the pressure ring, retaining ring and steel pipe flange ring are connected as a whole by several high-strength bolts that pass through them and are arranged circumferentially. The pressure ring is provided with a number of bolt connection holes around its circumference, and the steel pipe flange is provided with a number of bolt connection holes accordingly. The retaining ring has a toothed structure, and the notch of the toothed structure is used to allow high-strength bolts to pass through. Intersecting reinforcing ribs are provided on the bearing platform.

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