Detachable modular assembly type steel structure retaining dam

Abstract

The detachable modular assembly type steel structure water retaining dam comprises a support body, a water retaining structure and a water diversion structure, the water diversion structure comprises a first water diversion assembly and a second water diversion assembly, and the water retaining structure is obliquely arranged on the support body and comprises a panel unit made of steel plates, a first connecting unit and a second connecting unit; the panel unit comprises a middle panel and a side arc-shaped plate; the upstream face of the middle panel is an arc-shaped concave surface of which the middle part is concave towards the downstream face of the middle panel; the side arc-shaped plates of the transverse adjacent panel units are connected in a sealed mode to form an arc-shaped inwards-concave face consistent with the middle panel. The panel unit is of an inwards-concave arc-shaped structure and is obliquely installed, so that water pressure is more evenly distributed on the support body, local stress is reduced, collision can be reduced compared with a steel panel of a plane structure, and the stability and safety of the support are further improved; the panel assembly, the water diversion assembly and the support body can be modularly produced, the site construction period is shortened, and the panel assembly, the water diversion assembly and the support body can be reused after being dismantled.

Description

Technical Field

[0001] The invention relates to the field of reservoir siltation and desilting, and in particular to a detachable modular assembled steel structure water retaining dam. Background Art

[0002] As an important node of the national water network and an important part of the basin flood control engineering system, reservoirs undertake multiple functions such as flood control, water supply, irrigation, and power generation. They are key infrastructure to ensure national water security and sustainable social and economic development. However, most of the reservoirs in service (especially those built on sandy rivers) have varying degrees of siltation, which not only seriously affects the original water storage function of the reservoir, but also affects flood control safety. Therefore, desilting the in-service reservoirs is crucial to ensure reservoir siltation and flood control.

[0003] Existing reservoir dredging methods include hydraulic dredging and mechanical dredging. Hydraulic dredging includes sediment discharge by density flow, sediment retention and hydraulic scouring by emptying the reservoir (or lowering the water level) to welcome the flood and achieve sediment scouring. Mechanical dredging includes mechanical dry excavation and dredging by dredgers. When the reservoir is ready for emptying, excavators and large dump trucks are generally used to dig out the silt and load it onto trucks for transportation. Water-scarce areas and reservoirs without bottom holes do not have emptying conditions, and dredging is generally done by dredgers or dredge suction pumps.

[0004] Although hydraulic sand removal can achieve sand removal, it is less efficient for sediment deposited in reservoir areas, wide river beaches and other locations, especially when water resources are insufficient, and silt removal is difficult. Mechanical silt removal has limitations such as high cost and small silt removal volume, and the removed silt also faces problems of land occupation and energy consumption. In order to efficiently remove the silt deposited in reservoir areas, wide river beaches and other locations, temporary water retaining dams can be used to restrain water, combined with existing technologies such as lateral erosion and high channel sand pulling. If traditional concrete dams, earth-rock dams, etc. are used as temporary water retaining dams, not only the construction period is long, but also difficult to dismantle. Therefore, the use of steel structures for temporary water retaining not only has a short construction period, but also is easy to dismantle, which can greatly reduce the cost of silt removal. However, the existing steel structure water retaining dams have a large number of components and connection nodes, a large amount of on-site assembly work, a long silt removal period, and great difficulty in disassembly. During the disassembly process, the steel components are usually damaged, making it difficult to put them into use again, thereby increasing the cost of silt removal. Summary of the invention

[0005] In view of this, the present invention proposes a detachable modular assembled steel structure water retaining dam, which is simple and convenient to disassemble and assemble and is reusable, and can also meet different dredging needs of water confinement and water diversion by adjusting the modules.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The detachable modular assembled steel structure water retaining dam of the present invention comprises a support body and a water retaining structure arranged on the support body, and also comprises a water diversion structure, wherein the water diversion structure comprises a first water diversion assembly arranged on the water retaining structure and a second water diversion assembly arranged on the support body; The water retaining structure is obliquely arranged on the support body, and comprises a plurality of rows of panel assemblies fixedly connected to the support body, wherein the panel assembly comprises a panel unit made of a steel plate, a first connecting unit and a second connecting unit, wherein the panel unit comprises a middle panel and side arc-shaped plates symmetrically fixedly connected to both sides of the middle panel, wherein the water-facing surface of the middle panel is an arc-shaped inner concave surface whose middle part is concave inwardly toward its water-receiving surface; the side arc-shaped plates of the laterally adjacent panel units are sealed and connected to form an arc-shaped inner concave surface consistent with the middle panel; The first connection unit includes a first connection member arranged at the connection between the middle panel and the side arc-shaped panel and a second connection member arranged on the back surface of each first connection member; the bracket body has a first oblique support member, and the second connection member of the panel assembly is fixedly connected to the first oblique support member; The second connection unit includes first connection plates arranged at the upper end and the lower end of the panel unit and second connection plates fixedly connected to the left and right sides of the panel unit, and the first connection plates are contour-designed.

[0007] The beneficial effects are as follows: the panel unit of the present invention is an inwardly concave arc structure and is installed at an angle, so that the water pressure is more evenly distributed on the bracket body, reducing local stress, and can reduce collisions relative to the steel panel of the flat structure, further improving the stability and safety of the present invention. The panel assembly of the present invention can be produced in a modular manner, and is fixedly connected to the bracket body on site through its first connecting unit, and the fixed connection between the panel assemblies is realized through the second connecting unit, which is simple and convenient to assemble and shortens the on-site construction period.

[0008] Preferably, the first water diversion assembly is arranged on any one of the panel units, including at least one first water diversion pipe fixedly connected to the middle panel of the panel unit, the first water diversion pipe having a water front port and a water back port, the water front port is located obliquely above the water front surface of the middle panel, the water back port is located obliquely below the water back surface of the middle panel and has a connecting flange for convenient connection with the water diversion pipe.

[0009] Preferably, the second water diversion assembly includes a support unit fixedly connected to the bracket body and a second water diversion pipe obliquely arranged on the support unit, and one end of the second water diversion pipe is connected to the back water port of the first water diversion pipe through a connecting pipe. During actual installation, both ends of the second water diversion pipe have connecting flanges to facilitate the installation of the water diversion pipe. During actual processing, the second water diversion assembly can be modularly batch processed and can be processed on site. The on-site disassembly and assembly are simple and convenient, which improves the dredging efficiency.

[0010] More preferably, the support unit includes a support, a plurality of ribs and a support plate, the support is fixedly connected to the bracket body by a plurality of connecting bolts; a plurality of ribs are welded to the support, each rib has an installation slope, the support plate is an arc-shaped structure welded to the installation slopes of the plurality of ribs, and the lower part of the second water diversion pipe is fixedly connected to the support plate. The support unit can be manufactured in a modular manner to improve the efficiency of on-site installation.

[0011] Preferably, the bracket body includes a first support assembly and a second support assembly, and the bracket body is a multi-layer structure, each layer includes a group of first support assemblies, the first support assembly includes a first vertical support member and the first oblique support member fixedly connected to the bottom of the first support member, the top of the first vertical support member has a first connection node unit, the first connection node unit includes a second oblique support member parallel to the first oblique support member, the supporting end surfaces of the first oblique support members and the second oblique support members of the multi-layer first support assemblies are in the same plane, and the plane is an inclined plane, thereby realizing the inclined fixed installation of the panel unit.

[0012] More preferably, the second support assembly is in a triangular structure, including a second vertical support member, a second horizontal support member and an oblique connection member, the top of the second vertical support member has a connection seat, and the four side surfaces and the top surface of the connection seat all have connection heads. During actual installation, the connection head adopts an I-beam with mounting holes arranged therein, and the connection between the second support assemblies and between the second support assembly and the first support assembly can be achieved by bolts.

[0013] During actual installation, the second support components of each layer are connected together through the first horizontal support member, so that the connection forms an integral support body, thereby improving the structural stability of the support body.

[0014] Compared with the prior art, the advantages of the present invention are: the panel unit of the present invention is an inwardly concave arc structure and is installed at an angle, so that the water pressure is more evenly distributed on the bracket body, reducing local stress, and can reduce collisions relative to the steel panel with a planar structure, further improving the stability and safety of the present invention. The panel assembly of the present invention can be produced in a modular manner, and is fixedly connected to the bracket body on site through its first connecting unit, and the fixed connection between the panel assemblies is achieved through the second connecting unit. The on-site assembly is simple and convenient, shortening the on-site construction period; after dredging, it can be modularly disassembled to reduce the workload of disassembly, and can be reused to achieve recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the present invention (illustrated from the water-facing surface).

[0017] Figure 3 is a schematic diagram of the second support component in the bracket body.

[0018] Figure 4 is a schematic diagram of the first support component in the bracket body.

[0019] Figure 5 Schematic diagram of the panel assembly of the present invention.

[0020] Figure 6 It is a schematic diagram of installing the first water diversion component on the panel component of the present invention.

[0021] Figure 7 It is a schematic diagram of the second water diversion assembly of the present invention. DETAILED DESCRIPTION

[0022] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0023] It should be noted that, in the description of the present invention, relational terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-7As shown, the present invention proposes a detachable modular assembled steel structure water retaining dam, including a support body 1, a water retaining structure 2 and a water diversion structure arranged on the support body 1, the water diversion structure includes a first water diversion component 3 arranged on the water retaining structure 2 and a second water diversion component 4 arranged on the support body 1, the second water diversion component 4 is a standard module, which is generally arranged at intervals along the reservoir water retaining dam during actual installation, and can be prefabricated in batches in the factory, which is convenient for on-site disassembly and installation. Among them, the second water diversion component 4 includes a support unit 4.2 fixedly connected to the bracket body 1 and a second water diversion pipe 4.1 obliquely arranged on the support unit 4.2, and each port of the second water diversion pipe 4.1 has a connecting flange for easy disassembly and assembly; the support unit 4.2 includes a support, a plurality of ribs 4.2a and a support plate 4.2d, the support has a pair of vertical plates 4.2c and a top plate 4.2b fixedly connected to the top of the vertical plates 4.2c, a plurality of ribs 4.2a are fixedly connected in parallel to the top surface of the top plate 4.2b, each rib 4.2a has an installation inclined surface, and the support plate 4.2d is an arc structure welded on the installation inclined surfaces of the plurality of ribs 4.2a, the radius of the support plate 4.2d is greater than or equal to the radius of the second water diversion pipe 4.1, and the lower end of the second water diversion pipe 4.1 is welded in the support plate 4.2d.

[0026] During actual installation, the support is clamped on the bracket body 1 through two vertical plates 4.2c, and the lower parts of the two vertical plates 4.2c are fixed together by multiple long bolts 4.2e, so that the second water diversion component 4 can be quickly installed on the bracket body 1; when disassembly is required, the long bolts 4.2e can be removed to achieve the overall disassembly of the second water diversion component 4, which is simple and convenient to disassemble and assemble, thereby improving on-site operation efficiency.

[0027] Combination Figure 1-2 and Figure 5It can be seen that the water retaining structure 2 is tiltedly arranged on the support body 1, and includes a plurality of rows of panel assemblies fixedly connected to the support body 1, and the panel assemblies in each row of panel assemblies are sealed and fixedly connected to each other, and the upper and lower adjacent panel assemblies are sealed and connected, so that the water retaining structure 2 forms a complete water retaining surface to avoid water leakage and ensure water retaining performance; taking one of the panel assemblies as an example, it includes a panel unit 2.1 made of steel plate, a first connecting unit 2.2 and a second connecting unit 2.3, and the panel unit 2.1 includes a middle panel 2.1a and a symmetrically fixed middle panel 2.1a. The side arc plates 2.1b on both sides of the plate 2.1a, the water-facing surface of the middle panel 2.1a is an arc-shaped concave surface with the middle part concave toward its back water surface; the side arc plates 2.1b of the laterally adjacent panel units 2.1 are sealed and connected to form an arc-shaped concave surface consistent with the middle panel 2.1a; during actual installation, since the water retaining structure 2 has multiple columns of panel units 2.1, multiple arc-shaped concave surfaces can be formed, so that the water pressure is more evenly distributed on the bracket body 1, reducing local stress. Compared with the steel panel with a flat structure, it can reduce collision and improve stability and safety. Among them, during actual processing, the panel unit 2.1 can be integrally formed to reduce seams; the first connecting unit 2.2 includes a first connecting member 2.2a (i.e., a connecting steel pipe) arranged at the connection between the middle panel 2.1a and the side arc-shaped plate 2.1b and a second connecting member 2.2b (using an I-beam) arranged on the back water surface of each first connecting member 2.2a, and the second connecting member 2.2b is vertically installed in the middle of the connecting steel pipe and is provided with a mounting hole for easy installation on the bracket body 1; the second connecting unit 2.3 includes a first connecting plate 2.3a arranged at the upper and lower ends of the panel unit 2.1 and a second connecting plate 2.3b fixedly connected to the left and right sides of the panel unit 2.1, the first connecting plate 2.3a is designed along the upper or lower side structure of the panel unit 2.1, that is, the first connecting plate 2.3a is contoured to ensure the connection between the upper and lower adjacent panel units 2.1. In actual installation, in order to ensure the sealed connection between the two adjacent panels, the second connection unit 2.3 includes an annular steel plate 2.3c fixedly connected to the upper and lower ends of each connecting steel pipe, and the annular steel plate 2.3c is fixedly connected to the corresponding first connection plate 2.3a. In actual installation, a sealing strip is set between the first connection plates 2.3a of the two adjacent panel units 2.1 and fixedly connected by multiple bolts. This is repeated to achieve the sequential connection of each column of panel units 2.1; for the left and right adjacent panel units 2.1, a sealing strip is set between the second connection plates 2.3b between the two panel units 2.1 and fixedly connected by bolts to achieve the fixed connection. This is repeated to achieve the sequential connection of each row of panel units 2.1.

[0028] During actual processing, the panel assembly of the present invention can be processed in batches as a standard module. It only needs to be fixedly connected to the bracket body 1 to achieve rapid installation of the panel assembly, and disassembly and assembly are simple and convenient.

[0029] Combination Figure 1 and Figure 6 It can be seen that the first water diversion assembly 3 is installed on the panel assembly, which includes a pair of first water diversion pipes 3.1 fixedly connected to the middle panel 2.1a of the panel assembly, and the first water diversion pipe 3.1 has a water inlet and a water outlet, the water inlet is located obliquely above the water inlet surface of the middle panel 2.1a, and the water outlet is located obliquely below the water outlet surface of the middle panel 2.1a and has a connecting flange, and the first water diversion pipe 3.1 and the second water diversion pipe 4.1 are connected one by one to meet the actual water diversion needs. In actual processing, the panel assembly and the first water diversion assembly 3 fixed thereon can be processed as standard modules to achieve factory prefabrication, and installed at the water diversion position according to the water diversion needs to meet the water diversion needs. In actual installation, multiple panel assemblies with the first water diversion assembly 3 can be installed.

[0030] Combination Figure 1-2 It can be seen that the support body 1 is formed by upper and lower multi-layer support frames fixedly connected, and each layer of the support frame includes a row of first support components 1.1, and the multi-layer first support components 1.1 are staggered up and down, so that the water retaining structure 2 is installed obliquely on the support body 1. The support frame includes second support components 1.2, and the number of second support components 1.2 of the multi-layer support frame decreases from bottom to top. For example, the second support components 1.2 from bottom to top are three rows, two rows, and one row, and the second support component 1.2 is not installed on the top layer, so as to meet the oblique support requirements of the support body 1.

[0031] Combination Figure 4 It can be known that the first support assembly 1.1 includes a first vertical support member 1.1a and a first oblique support member 1.1b fixedly connected to the bottom of the first support member, a second connection node unit 1.1c is fixedly connected to the bottom of the first oblique support member 1.1b, a fixing plate of the second connection node unit 1.1c extends upward, the first vertical support member 1.1a is fixedly connected to the fixing plate and is higher than the bottom of the first connection node unit to form a right-angle installation groove, which is convenient for fixed installation with the second support assembly 1.2; the top of the first vertical support member 1.1a has a first connection node unit, the first connection node unit includes a second oblique support member 1.1d parallel to the first oblique support member 1.1b, the supporting end faces of the first oblique support member 1.1b and the second oblique support member 1.1d of the multi-layer first support assembly 1.1 are in the same plane, and the plane is an inclined plane, thereby realizing the inclined fixed installation of the panel unit 2.1. During actual installation, the second connecting member 2.2b is an I-beam, and the first oblique support member 1.1b and the second oblique support member 1.1d are both I-beams of the same type. The flange plate and web plate of the second connecting member 2.2b are fixedly connected to the flange plate and web plate of the first oblique support member 1.1b (or the second oblique support member 1.1d) through connecting steel plates and bolts to ensure structural stability.

[0032] Combination Figure 4It can be seen that the first connection node unit also includes three mounting heads 1.1e installed on the top side of the first vertical support member 1.1a. The mounting heads 1.1e are made of I-beams with evenly distributed mounting holes. Two adjacent mounting heads 1.1e in each row are fixed together by connecting cross braces, thereby connecting each row of first support components 1.1 to form a whole.

[0033] Combination Figure 3 It can be seen that the second support assembly 1.2 is a triangular structure, which includes a second vertical support member 1.2a, a second horizontal support member 1.2b and an oblique connection member 1.2c. The bottom of the oblique connection member 1.2c has a third node unit 1.2d with the same structure as the second node unit. A mounting groove with a right-angle structure is provided between the bottom of the second vertical support member 1.2a and the oblique connection member 1.2c. The top of the oblique connection member 1.2c has a fourth node unit 1.2e. The second horizontal support member 1.2b is fixedly connected to one end of the fourth node unit 1.2e and encloses a right-angled mounting groove to ensure the fixed connection and installation between the second horizontal support members 1.2b. Combination Figure 3 It can be seen that the top of the second vertical support member 1.2a has a connection seat 1.2f, and the four sides and top surface of the connection seat 1.2f all have connection heads. In actual installation, the connection head adopts an I-beam with mounting holes arranged therein, and the connection between the second support assemblies 1.2 and between the second support assemblies 1.2 and the first support assembly 1.1 can be achieved by bolts.

[0034] During actual installation, each row of second support assemblies is connected to each other through the first horizontal support member 1.3, so that the first support assemblies and the second support assemblies are connected to form a whole.

[0035] During actual prefabrication, the support members, connectors, connectors and mounting heads 1.1e in the bracket body 1 of the present invention are all made of I-beams, which are convenient for batch processing in the factory; in addition, the first support assembly 1.1, the second support assembly 1.2, the panel assembly, the panel assembly with the first water diversion assembly 3 and the second water diversion assembly 4 are all modularly designed and batch-produced in the factory to reduce the workload of on-site assembly.

[0036] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A detachable modular assembled steel structure water retaining dam, comprising a support body and a water retaining structure arranged on the support body, characterized in that: It also includes a water diversion structure, which includes a first water diversion component arranged on the water retaining structure and a second water diversion component arranged on the support body; The water retaining structure is obliquely arranged on the support body, and comprises a plurality of rows of panel assemblies fixedly connected to the support body, wherein the panel assembly comprises a panel unit made of a steel plate, a first connecting unit and a second connecting unit, wherein the panel unit comprises a middle panel and side arc-shaped plates symmetrically fixedly connected to both sides of the middle panel, wherein the water-facing surface of the middle panel is an arc-shaped inner concave surface whose middle part is concave inwardly toward its water-receiving surface; the side arc-shaped plates of the laterally adjacent panel units are sealed and connected to form an arc-shaped inner concave surface consistent with the middle panel; The first connection unit includes a first connection member arranged at the connection between the middle panel and the side arc-shaped panel and a second connection member arranged on the back surface of each first connection member; the bracket body has a first oblique support member, and the second connection member of the panel assembly is fixedly connected to the first oblique support member; The second connection unit includes first connection plates arranged at the upper end and the lower end of the panel unit and second connection plates fixedly connected to the left and right sides of the panel unit, and the first connection plates are contour-designed.

2. The detachable modular assembled steel structure water retaining dam according to claim 1 is characterized by: The first water diversion assembly is arranged on any one of the panel units, and includes at least one first water diversion pipe fixedly connected to the middle panel of the panel unit, the first water diversion pipe having a water front port and a water back port, the water front port is located obliquely above the water front surface of the middle panel, and the water back port is located obliquely below the water back surface of the middle panel and has a connecting flange.

3. The detachable modular assembled steel structure water retaining dam according to claim 2 is characterized by: The second water diversion assembly includes a support unit fixedly connected to the bracket body and a second water diversion pipe obliquely arranged on the support unit, and one end of the second water diversion pipe is connected to the back water port of the first water diversion pipe through a connecting pipe.

4. The detachable modular assembled steel structure water retaining dam according to claim 3 is characterized by: The support unit includes a support, a plurality of ribs and a support plate. The support is fixedly connected to the bracket body by a plurality of connecting bolts. The plurality of ribs are welded to the support, and each rib has an installation slope. The support plate is an arc-shaped structure welded to the installation slopes of the plurality of ribs. The lower part of the second water diversion pipe is fixedly connected to the support plate.

5. The detachable modular assembled steel structure water retaining dam according to claim 1 is characterized by: The bracket body includes a first support assembly and a second support assembly. The bracket body is a multi-layer structure, and each layer includes a group of first support assemblies. The first support assembly includes a first vertical support member and the first oblique support member fixedly connected to the bottom of the first support member. The top of the first vertical support member has a first connection node unit, and the first connection node unit includes a second oblique support member parallel to the first oblique support member. The support end surfaces of the first oblique support members and the second oblique support members of the multi-layer first support assemblies are in the same plane.

6. The detachable modular assembled steel structure water retaining dam according to claim 5 is characterized by: The second support assembly is in a triangular structure, and includes a second vertical support member, a second horizontal support member and an oblique connection member. The top of the second vertical support member is provided with a connection seat, and the four side surfaces and the top surface of the connection seat are provided with connection heads.

7. The detachable modular assembled steel structure water retaining dam according to claim 6 is characterized by: The second supporting components of each layer are connected together through a first horizontal supporting member.

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