Improved sewage pool wall, manufacturing method and assembly structure

Abstract

The invention relates to an improved sewage pool wall, a manufacturing method and an assembly structure, and the sewage pool wall comprises a first wall and a second wall which are vertically arranged, a steel bar connecting framework formed by connecting a plurality of distribution bars in a criss-cross manner, and a wall bottom connecting plate extending along the length direction of the steel bar connecting framework, the first wall and the second wall are arranged side by side in a wall surface opposite posture; the steel bar connecting framework is located between the first wall and the second wall and connected with the first wall and the second wall, and the steel bar connecting framework is provided with a first side facing the first wall and a second side facing the second wall. The wall bottom connecting plate is arranged between the first side and the second side of the steel bar connecting framework and connected with the first side and the second side. Meanwhile, the lower portion of the wall bottom connecting plate extends out relative to the first wall and the second wall and is used for being connected with a sewage pool bottom foundation. The problem that in the existing sewage pool wall construction process, joint connection is complex, the requirement is high, and then the construction efficiency is low can be solved.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically relating to an improved wastewater tank wall, its manufacturing method, and its assembly structure. Background Technology

[0002] With the increasing scarcity of water resources and the intensification of environmental pollution control, people have begun to pay attention to the treatment of various types of wastewater and to reuse it as much as possible. Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of the daily lives of ordinary people.

[0003] Currently, wastewater treatment generally uses wastewater tanks. Some of these tanks are underground, embedded beneath the ground. Compared to above-ground shear walls, underground tank walls must withstand greater horizontal hydrostatic pressure and must also account for water level fluctuations caused by rapid filling and drainage or liquid sloshing during earthquakes. To prevent leakage, stricter requirements are placed on cracks, resulting in thicker underground tank walls, stricter requirements on protective layer thickness, and larger diameter and smaller spacing of reinforcing steel bars.

[0004] Currently, there are two main types of prefabricated sewage treatment plant walls: one is a double-sided composite wall. In this type, both vertical and horizontal reinforcing bars are cast inside the wall. Due to the thick protective layer and large diameter of the reinforcing bars, the thickness of the wall panels on both sides typically needs to reach 80mm or even more, which places high demands on the lifting weight. Furthermore, the foundation reinforcing bars need to extend into the cavity of the double-sided composite wall, forming an indirect lap with the vertical reinforcing bars inside the wall panel. This results in a reduction in the effective height when performing out-of-plane bending calculations at the bottom of the wall, thus requiring higher standards for the diameter and extension height of the foundation's protruding reinforcing bars. The other type is a semi-prefabricated prefabricated wall, where only half of the wall is prefabricated. The horizontal joint between the wall and the water tank is connected by lapped reinforcing bars and a post-cast joint, thereby reducing the weight of the component. However, this type still has high requirements for lifting and the diameter and extension height of the foundation's protruding reinforcing bars, and still involves a significant amount of formwork work. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide an improved sewage tank wall in view of the current situation of the prior art, so as to solve the problem that the construction of existing sewage tank walls is complicated and has high requirements for node connection, which leads to low construction efficiency.

[0006] The second technical problem to be solved by the present invention is to provide a method for manufacturing the above-mentioned sewage tank wall, so as to improve manufacturing efficiency.

[0007] The third technical problem to be solved by the present invention is to provide an assembly structure having the above-mentioned sewage tank wall.

[0008] The technical solution adopted by the present invention to solve the first technical problem mentioned above is: an improved sewage tank wall, characterized in that it includes: The first and second walls are vertically set up and arranged side by side with their surfaces facing each other. A steel reinforcement connection skeleton, which is formed by multiple distributed bars connected in a crisscross pattern, is located between the first wall and the second wall and is connected to both the first wall and the second wall. The steel reinforcement connection skeleton has a first side facing the first wall and a second side facing the second wall. The bottom wall connecting plate extends along the length of the steel reinforcement connecting frame and is located between the first and second sides of the steel reinforcement connecting frame, and is connected to the first and second sides; at the same time, the lower part of the bottom wall connecting plate extends relative to the first and second walls for connection with the bottom foundation of the sewage tank.

[0009] Preferably, the upper part of the wall bottom connecting plate has a plurality of connecting parts connected sequentially along the length direction, and each connecting part alternately connects the first side and the second side of the steel reinforcement connecting frame.

[0010] Preferably, at least the upper part of the wall bottom connecting plate is a wave-shaped structure formed by bending a steel plate multiple times and having alternating first and second recesses in the length direction. The opening directions of the first and second recesses are opposite and respectively face the first and second sides of the steel reinforcement connecting frame. The first and second recesses serve as connecting parts that respectively connect the second and first sides of the steel reinforcement connecting frame.

[0011] Therefore, when the concrete expands or contracts, the corrugated wall base connecting plate can be slightly compressed or stretched. The elastic bending of each concave section absorbs the length changes, effectively releasing the enormous shrinkage stress and preventing compression cracks or tensile cracks in the sewage tank wall along its length. Simultaneously, the continuous first and second concave structures effectively resist the bending moments and shear forces generated by the hydrostatic or earth pressure acting on the sewage tank wall, reliably transferring these loads to the foundation at the bottom of the sewage tank. This provides solid support for the bottom of the sewage tank wall structure, preventing overturning or excessive deformation under lateral forces. Furthermore, the corrugated structure, formed by multiple bends of steel plates, has no transverse seams, providing a seamless, continuous, three-dimensional, tortuous physical water-stopping barrier with extremely high waterproof reliability.

[0012] Furthermore, both the first and second recesses are U-shaped.

[0013] In the above solution, preferably, the wall bottom connecting plate is disposed at the bottom of the first wall and the second wall, forming a structural isolation between the bottom of the first wall and the bottom of the second wall. That is, the wall bottom connecting plate can block the seepage path between the first wall and the second wall. In this case, the wall bottom connecting plate can be used as a water-stop steel plate, eliminating the need for an additional water-stop steel plate. At the same time, through the structural design of the wall bottom connecting plate itself, the function of the water-stop steel plate that originally needed to be installed separately is integrated into the connection node between the sewage tank wall and the sewage tank bottom foundation. This not only saves the material and installation costs of a separate water-stop steel plate, but also eliminates a key leakage risk point, greatly improving the reliability and durability of the waterproofing of the wall bottom node.

[0014] In the above embodiments, preferably, the steel reinforcement connection cage includes: Multiple horizontal and vertical ribs are interwoven to form a frame structure with the first side and the second side. Multiple tie rods are provided, each tie rod connecting horizontal distribution ribs and vertical distribution ribs, and each tie rod having a first end extending relative to a first side and a second end extending relative to a second side, the first end being embedded in the first wall and the second end being embedded in the second wall.

[0015] The first and second ends of the tie rod form a strong mechanical anchorage in their respective first and second walls, which makes the steel reinforcement skeleton firmly connected to the first and second walls.

[0016] Furthermore, the tie bars, the vertical distribution bars connected to them, and the horizontal distribution bars connected to them together form a tight, three-dimensional spatial frame. The three-dimensional spatial structure improves the bending, torsional, and shear stiffness of the steel reinforcement cage in the thickness direction, preventing the frame from twisting, buckling, or excessively deforming during construction, hoisting, or under stress.

[0017] Preferably, a group of vertically distributed bars arranged along the length of the steel reinforcement connection skeleton is a column of bars, and there are two columns of bars, which respectively form the first side and the second side of the steel reinforcement connection skeleton. Each column of reinforcement includes vertical connecting bars and vertical non-connecting bars. A predetermined number of vertical non-connecting bars and a predetermined number of vertical connecting bars are arranged alternately, and the vertical connecting bars are connected to the wall bottom connecting plate.

[0018] Only vertical connecting bars participate in the connection of the wall base slab, which reduces the number of steel bar connections, saves labor costs, and speeds up component prefabrication. Furthermore, welding vertical connecting bars to the wall base slab is easier to process than welding steel bars to each other, thus improving construction efficiency. Vertical non-connecting bars do not directly participate in the connection of the wall base slab, but when connected with horizontal distribution bars, they form a grid that can restrain concrete cracking and improve the overall stiffness of the frame.

[0019] The technical solution adopted by the present invention to solve the second technical problem mentioned above is: a method for manufacturing the wall of a sewage tank as described above, characterized by comprising the following steps: 1. Fabricate the steel reinforcement connection frame and the wall bottom connection plate, and connect the steel reinforcement connection frame and the wall bottom connection plate; 2. Cast the first wall on the formwork, and place the first side of the steel reinforcement connecting skeleton on the wall surface of the first wall so that the first end of the tie rod of the steel reinforcement connecting skeleton is embedded in the first wall. 3. After the first wall reaches the predetermined strength, the first wall is connected to the steel reinforcement frame. Then, the second wall is poured at another part of the formwork. After flipping the connected steel reinforcement frame and the first wall, the second side of the steel reinforcement frame is placed on the wall surface of the second wall so that the second end of the tie rod of the steel reinforcement frame is embedded in the second wall. Fourth, once the second wall reaches the predetermined strength, the sewage tank wall is obtained.

[0020] This invention transforms high-risk on-site construction nodes into factory-controllable processes through a process of prefabrication and inversion pressing. It can achieve efficient construction and prevent leakage while ensuring the integrity of the first wall, the second wall and the steel frame.

[0021] Preferably, both the first wall and the second wall are made of UHPC material, and the thickness of both the first wall and the second wall is 40mm-50mm. The depth to which the first end of the tie rod is embedded in the first wall and the depth to which the second end of the tie rod is embedded in the second wall are both 20mm-30mm.

[0022] UHPC (Ultra-High Performance Concrete) is a high-strength, high-toughness, low-porosity cementitious material. UHPC material possesses both ultra-high strength and high durability. Using UHPC material allows for a reduction in the thickness of the first and second walls, resulting in less concrete usage, reduced wall cracking, and lower lifting weight. Before the UHPC initially sets, the first end of the tie rod is vertically pressed in 20-30mm, and the concrete self-levels and wraps around the rebar. After flipping, the second end of the tie rod is pressed into the second wall to the same depth. The high bond strength of UHPC ensures reliable anchorage.

[0023] The technical solution adopted by the present invention to solve the third technical problem mentioned above is: an assembly structure having a sewage tank wall as described above, characterized in that it further includes a sewage tank bottom foundation, wherein the sewage tank bottom foundation has a foundation connector connected to the lower part of the wall bottom connecting plate.

[0024] Compared with existing technologies, the advantages of this invention are as follows: by prefabricating and integrating the first wall, the second wall, the steel reinforcement connection frame, and the wall bottom connection plate, and by using a continuous and uninterrupted wall bottom connection plate extending along the length of the steel reinforcement connection frame to connect with the bottom foundation of the sewage tank to replace the steel reinforcement lap, during on-site installation, the construction personnel only need to hoist the tank wall into place as a whole, and then directly connect the lower part of the wall bottom connection plate to the embedded parts or reserved interfaces on the bottom foundation of the sewage tank. This can replace the time-consuming and error-prone steel reinforcement lap process in the traditional wall bottom node, achieving assembly with a fast and reliable connection, significantly shortening the construction period, reducing labor costs, and improving construction controllability, thus solving the problem of low efficiency in the existing sewage tank wall construction process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the sewage tank wall in an embodiment of the present invention; Figure 2 This is a schematic diagram of the connection between the steel reinforcement frame and the bottom wall connecting plate in an embodiment of the present invention; Figure 3 This is a side view of the pool wall in an embodiment of the present invention; Figure 4 This is a top view of the pool wall in an embodiment of the present invention; Figure 5 This is a bottom view of the pool wall in an embodiment of the present invention; Figure 6 This is a schematic diagram of the assembly structure in an embodiment of the present invention; Figure 7 This is a side view of the assembly structure in an embodiment of the present invention; Figure 8 This is a schematic diagram showing the connection between the wall bottom connecting plate and the foundation connecting component in an embodiment of the present invention; Figure 9 A schematic diagram of another assembly structure in an embodiment of the present invention. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figures 1-9 As shown, this is a preferred embodiment of the improved sewage tank wall, manufacturing method, and assembly structure of the present invention. The sewage tank wall is as follows... Figures 1 to 5As shown, the structure includes: a first wall 1, a second wall 2, a reinforcing steel frame 3, and a bottom connecting plate 4. The reinforcing steel frame 3, composed of multiple intersecting reinforcing bars, is located between the first wall 1 and the second wall 2, having a first side and a second side facing each other, with the first side facing the first wall 1 and the second side facing the second wall 2. The bottom connecting plate 4 is continuously arranged along the length of the reinforcing steel frame 3 between the first side and the second side, and is connected to the first side and the second side respectively. The lower part of the bottom connecting plate 4 is exposed below the first wall 1 and the second wall 2, and is used to connect to the foundation at the bottom of the sewage tank.

[0028] The wastewater tank wall provided in this embodiment can be applied to the equalization tank of an underground wastewater treatment plant.

[0029] The first wall 1 and the second wall 2 can be prefabricated components on both sides of the sewage tank wall, which can be precast reinforced concrete slabs, cast concrete walls or other rigid wall panel materials, forming the load-bearing and water-retaining structure of the sewage tank wall.

[0030] The steel reinforcement frame 3 includes a first side and a second side, which can be formed by welding or binding steel bars to form a frame structure. The first side can be firmly fixed to the first wall 1 by steel bar connections, such as welding, binding, or pre-embedded connections. The second side is also firmly fixed to the second wall 2 by steel bar connections. The steel reinforcement frame 3 forms a rigid connection link between the first wall and the second wall.

[0031] The bottom connecting plate 4 is continuously installed along the length of the reinforcing steel connecting frame 3, that is, along the uninterrupted extension direction of the sewage tank wall. The bottom connecting plate 4 is located between the first side and the second side, and can be a steel plate, structural steel or precast concrete connector, and is connected to the first side and the second side of the reinforcing steel connecting frame 3 by welding or bolting.

[0032] In the height direction of the steel reinforcement connecting frame 3, that is, in the vertical direction of the pool wall, the lower part of the wall bottom connecting plate 4 is exposed outside the first wall 1 and the second wall 2 to form an interface for connection with the bottom foundation of the sewage pool. That is, the lower part of the wall bottom connecting plate 4 may protrude downward or may not be completely covered by the first wall and the second wall.

[0033] By using a continuous, uninterrupted wall-bottom connecting plate 4 to connect with the bottom foundation of the sewage tank instead of lapped reinforcement, the node connection method can be simplified. During on-site installation, construction workers only need to hoist the entire sewage tank wall (including the first wall 1, the second wall 2, the reinforcement connection frame 3, and the integrated wall-bottom connecting plate 4) into place, and then connect the lower part of the wall-bottom connecting plate 4 directly to the foundation connectors (such as embedded parts, reserved interfaces, etc.) on the bottom foundation of the sewage tank using pre-embedded bolts, welding, grouting anchors, or other quick connection methods. This eliminates the cumbersome steps of aligning, binding, welding, and lapping the wall-bottom reinforcement, speeding up construction and improving construction efficiency.

[0034] This embodiment, through prefabrication and integration and simplified connection, can replace the time-consuming and error-prone steel bar splicing process in traditional wall bottom nodes, achieving assembly with fast and reliable connection, significantly shortening the construction period, reducing labor costs, and improving construction controllability and node quality.

[0035] In this embodiment, as Figure 5 As shown, the wall base connecting plate 4 has multiple connecting portions 401 connected sequentially along its length. Each connecting portion 401 has a connecting steel plate and an opening. The connecting steel plate is used to connect to a first side or a second side, and the opening faces the first side or the second side. The opening directions of adjacent connecting portions 401 are opposite. For example, the connecting steel plates of some connecting portions 401 are connected to the first side of the reinforcing steel connection frame, and the connecting steel plates of other connecting portions 401 are connected to the second side of the reinforcing steel connection frame. If a connecting portion 401 is connected to the first side through its connecting steel plate, then its opening faces the second side. Similarly, if another connecting portion 401 is connected to the connecting portion 401 on the second side through its connecting steel plate, then its opening faces the first side. By designing the wall base connecting plate 4, which consists of multiple connecting portions 401 with adjacent connecting portions 401 having opposite opening directions, the surface area of ​​the wall base connecting plate 4 can be increased, thereby increasing the contact area with the bottom foundation of the sewage tank and improving the reliability of the connection. Meanwhile, since the connecting part 401 has an opening, that is, between the wall bottom connecting plate 4 on the first side and the second side, part of the steel reinforcement connecting skeleton 3 can be left unconnected to the wall bottom connecting plate 4, which reduces the number of steel reinforcement connections, saves labor costs and speeds up the prefabrication of components.

[0036] In this embodiment, the length of the wall bottom connecting plate 4 is adapted to the length of the reinforcing steel connecting frame 3. The wall bottom connecting plate 4 is a wave-shaped structure formed by multiple bending of a rectangular steel plate (through cold bending or hot bending processes), and has alternating first and second recesses along its length. The openings of the first and second recesses are in opposite directions, facing the first and second sides of the reinforcing steel connecting frame 3 respectively. The first and second recesses serve as the connecting parts 401, connecting the second and first sides of the reinforcing steel connecting frame 3 respectively. Furthermore, in this embodiment, both the first and second recesses are U-shaped, with the opening of the U-shape being the opening of the connecting part 401, and the portion of the U-shape away from the opening being the connecting steel plate of the connecting part 401.

[0037] When concrete expands or contracts, the corrugated wall base connecting plate 4 can be slightly compressed or stretched. The elastic bending of the U-shaped structure absorbs the length changes, effectively releasing significant shrinkage stress and preventing compression cracks or tensile cracks in the pool wall along its length. Simultaneously, the continuous U-shaped structure effectively resists bending moments and shear forces generated by hydrostatic or earth pressure acting on the sewage pool wall, reliably transferring these loads to the foundation at the bottom of the sewage pool. This provides solid support for the bottom of the pool wall structure, preventing overturning or excessive deformation of the sewage pool wall under lateral forces. Constructed from a single continuous steel plate with no transverse seams, it provides a seamless, continuous, three-dimensionally tortuous physical water-stop barrier with extremely high waterproof reliability.

[0038] In this embodiment, as Figures 2 to 4 As shown, the reinforcing steel connection skeleton 3 includes: multiple horizontal distribution bars 301, multiple vertical distribution bars, and multiple tie bars 304. The multiple horizontal distribution bars 301 and multiple vertical distribution bars are interconnected in a crisscross pattern to form a frame structure with the aforementioned first side and second side. Specifically, the horizontal distribution bars 301 and vertical distribution bars are interconnected in a crisscross pattern and are firmly connected at the intersection points by welding, binding, or mechanical connection. This connection forms a stable planar grid-like or spatial cage-like frame structure, constituting the skeleton of the reinforcing steel connection skeleton 3, and giving the reinforcing steel connection skeleton 3 a first side and a second side. Multiple tie bars are welded to the horizontal distribution bars 301 and are respectively connected to the vertical distribution bars on the first side and the second side. The tie bar 304 includes a first end extending out of the first side and a second end extending out of the second side. The first end is embedded in the first wall 1, and the second end is embedded in the second wall 2. In this embodiment, the tie bar 304 can be U-shaped, W-shaped, or continuous wavy, etc. Since the tie bar 304 is used to connect the vertical distribution bars on the first side and the second side respectively, the tie bar 304 becomes a key component that spans the thickness direction of the steel bar connection skeleton 3 and directly connects the vertical distribution bars on both sides.

[0039] The first end of the tie bar 304 can be cast and embedded in the concrete of the first wall 1, and similarly, the second end of the tie bar 304 can be cast and embedded in the concrete of the second wall 2. This embedding method creates a strong mechanical anchorage between the two ends of the tie bar 304 within the concrete of their respective first and second walls. After the concrete hardens, the tie bar 304 becomes an integral part of the corresponding first and second walls, making it difficult to pull out.

[0040] The tie bar 304, the vertical distribution bars on both sides connected to it, and the horizontal distribution bars 301 welded to it together form a tight, three-dimensional spatial frame. The three-dimensional spatial structure improves the bending, torsional, and shear stiffness of the steel reinforcement connection skeleton 3 in the thickness direction, preventing the steel reinforcement connection skeleton 3 from twisting, buckling, or excessively deforming during construction, hoisting, or under stress.

[0041] In this embodiment, the vertical distribution reinforcement is arranged in two columns, forming the first and second sides of the steel reinforcement connection skeleton 3 respectively. The vertical distribution reinforcement includes vertical connecting reinforcement 302 and vertical non-connecting reinforcement 303, with a predetermined number of vertical non-connecting reinforcement 303 and a predetermined number of vertical connecting reinforcement 302 arranged alternately. The wall bottom connecting plate 4 is located between the two columns of vertical distribution reinforcement, and the wall bottom connecting plate 4 is connected to the vertical connecting reinforcement 302 on the first and second sides respectively. The vertical connecting reinforcement 302 is directly welded or tied to the connecting steel plate of the wall bottom connecting plate 4, bearing the main load transfer function. The vertical non-connecting reinforcement 303 is not directly connected to the wall bottom connecting plate 4, and is used to prevent cracking of the pool wall and enhance the integrity and crack resistance of the frame. The vertical connecting ribs 302 and the vertical non-connecting ribs 303 can be arranged in an alternating manner. For example, they can be arranged alternately in preset patterns such as "2 vertical connecting ribs 302 and 2 vertical non-connecting ribs 303" or "3 vertical connecting ribs 302 and 3 vertical non-connecting ribs 303".

[0042] By welding only the vertical connecting bars 302, the number of rebar connections can be reduced, saving labor costs and accelerating component prefabrication. Furthermore, welding the vertical connecting bars 302 to the connecting steel plate is easier to process than welding rebars to each other, thus improving construction efficiency. The vertical non-connecting bars 303 do not directly participate in the wall bottom connection, but when tied with the horizontal distribution bars 301, they form a grid that can restrain concrete cracking and improve the overall stiffness of the frame structure.

[0043] In this embodiment, the diameter of the vertical connecting rib 302 is larger than the diameter of the vertical non-connecting rib 303.

[0044] The vertical connecting bars 302 are the main load-bearing bars, and their diameters can be larger, such as Φ14, Φ16, Φ18, Φ20 or larger. For example, high-strength steel bars can be used, which are directly welded to the bottom connecting plate 4 of the wall or mechanically anchored. They bear the main tensile, shear, and bending moment transmission and can withstand greater loads. In addition, the large-diameter connecting bars have a larger welding contact area with the steel plate, resulting in higher weld strength and avoiding the problems of incomplete welding and burn-through that are prone to occur when welding small steel bars.

[0045] Vertical non-connecting reinforcement bars 303 can use smaller diameter sizes, such as Φ8 or Φ10. Ordinary steel bars can be used, primarily to enhance the overall integrity of the frame and restrain concrete cracks, without directly participating in the force transmission at the wall base. Using small-diameter ordinary steel bars for vertical non-connecting reinforcement bars 303 can reduce material waste.

[0046] In this embodiment, the wall bottom connecting plate 4 is installed at the bottom of the first wall and the second wall, forming a structural isolation between the first wall 1 and the second wall 2. Specifically, the wall bottom connecting plate 4 forms a structural isolation in the vertical direction of the first wall 1 and the second wall 2, that is, in the thickness direction of the sewage tank wall, thereby blocking the seepage path between the first wall 1 and the second wall 2. That is, the wall bottom connecting plate 4 is located at the construction joint between the first wall 1, the second wall 2 and the foundation concrete, crossing a risky area prone to leakage. Its physical structure directly blocks the channel for water to seep along this construction joint, thereby blocking the seepage path between the first wall and the second wall. At this time, the wall bottom connecting plate 4 can be used as a water-stop steel plate, eliminating the need for an additional water-stop steel plate. At the same time, through the structural design of the wall bottom connecting plate 4, the function of the water-stop steel plate, which originally needed to be installed separately, is integrated into the connection node between the sewage tank wall and the sewage tank bottom foundation. This not only saves the material and installation costs of a separate water-stop steel plate, but also eliminates a key leakage risk point, significantly improving the reliability and durability of the waterproofing of the wall bottom node.

[0047] At the same time, such as Figure 3 As shown, the lower end of the first wall 1 is at the same height as the lower end of the vertical distribution reinforcement to protect the vertical distribution reinforcement from being exposed to the outside. The lower end of the second wall 2 is raised by a preset distance relative to the lower end of the vertical distribution reinforcement (the lower end of the second wall 2 is located above the lower end of the vertical distribution reinforcement, with a distance of 30-50mm between them), which can leave an operating opening to facilitate the welding of the wall bottom connecting plate 4 to the bottom foundation of the sewage tank.

[0048] The method for manufacturing the sewage tank wall in this embodiment includes the following steps: Fabricate the steel reinforcement connection frame 3 and the wall bottom connection plate 4, and connect the steel reinforcement connection frame 3 and the wall bottom connection plate 4. The first wall 1 is cast on the formwork, and the steel reinforcement connecting skeleton 3 is placed on the surface of the first wall 1 so that the first side of the steel reinforcement connecting skeleton 3 is placed on the wall surface of the first wall 1, and the first end of the tie rod 304 is pressed into the first wall 1. After the first wall 1 reaches the predetermined strength, the second wall 2 is cast at another location on the mold platform; Flip the first wall 1 and the steel reinforcement connecting frame 3, and place the second side of the steel reinforcement connecting frame 3 on the wall surface of the second wall 2, and press the second end of the tie bar 304 into the second wall 2; Once the second wall 2 reaches the predetermined strength, the construction of the sewage tank wall is complete.

[0049] In this embodiment, specifically, horizontal distribution bars 301, vertical distribution bars, and tie bars 304 can be welded in the factory to form a steel reinforcement connection skeleton 3. A rectangular steel plate is bent to form a wave-shaped wall bottom connection plate 4, and the upper part of the wall bottom connection plate 4 is welded to the steel reinforcement connection skeleton 3. Concrete is poured on a horizontal formwork to form the first wall 1, and the steel reinforcement connection skeleton 3 is placed on the uncured concrete surface, with the first end of the tie bar 304 pressed into the concrete.

[0050] At another work station, the concrete for the second wall 2 is poured. After the first wall 1 reaches the preset strength, it is demolded. Using a lifting device, the first wall 1 and the reinforcing steel frame 3 are rotated 180° as a whole. The rotated assembly is then hoisted onto the second wall 2, and the second end of the tie rod 304 is pressed into the concrete of the second wall 2. Once the second wall 2 has solidified and reached the predetermined strength, the construction of the sewage tank wall is complete.

[0051] By using a process of prefabrication and inversion pressing, structural nodes with high on-site construction risks are transformed into factory-controllable processes, which can achieve efficient construction and prevent leakage while ensuring the integrity of the double-sided shell and the steel frame.

[0052] In this embodiment, the first wall 1 and the second wall 2 are made of UHPC material, and the thickness of the first wall 1 and the second wall 2 is 40mm-50mm; the tie rod 304 is pressed into the first wall 1 and the second wall 2 to a depth of 20mm-30mm.

[0053] UHPC (Ultra-High Performance Concrete) is a high-strength, high-toughness, low-porosity cementitious material. UHPC materials possess both ultra-high strength and high durability. By using UHPC materials, the thickness of the first wall 1 and the second wall 2 can be reduced, thereby reducing the amount of concrete used, making the wall less prone to cracking, and lowering the lifting weight.

[0054] Before the initial setting of the UHPC, the first end of the 304 tie bar is vertically pressed in 20-30mm, and the concrete self-levels and wraps around the tie bar. After flipping, the second end of the 304 tie bar is pressed into the second wall 2 to the same depth. The high bond strength of the UHPC ensures the reliability of the anchorage.

[0055] like Figure 6 As shown, the assembly structure of this embodiment includes a sewage tank wall 10 and a sewage tank bottom foundation 20.

[0056] The sewage tank wall 10 can be rapidly constructed through standardized design and modular connection, realizing an industrialized construction mode of factory prefabrication and on-site assembly. This solves the pain points of traditional sewage tank construction, such as low efficiency, easy leakage, and difficult maintenance.

[0057] like Figure 7 and Figure 8As shown, the foundation 20 at the bottom of the sewage tank includes a foundation connector 2001. The foundation connector 2001 is adapted to the size of the wall bottom connecting plate 4 and is fixedly connected to the lower part of the wall bottom connecting plate 4.

[0058] The bottom foundation 20 of the sewage tank can be a cast-in-place concrete foundation, with a pre-embedded foundation connector 2001 at the top. The foundation connector 2001 has the same structure and size as the wall bottom connecting plate 4, both being wavy shapes formed by multiple bends of rectangular steel plates. The lower part of the wall bottom connecting plate 4 overlaps and fits tightly with the foundation connector 2001 before welding. Finally, concrete is poured into the cavity of the steel reinforcement frame 3 in the sewage tank wall 10 to fill the cavity and pour the connection node between the wall bottom connecting plate 4 and the foundation connector 2001. The wall bottom connecting plate 4 and the foundation connector 2001 can form a continuous and uninterrupted partition structure, which can be used as a water-stop steel plate, eliminating the need for an additional water-stop steel plate. Furthermore, the steel plate welding is regular and flat, allowing for automated welding using welding robots, reducing labor costs while improving welding quality.

[0059] In this embodiment, the sewage tank wall 10 can be a complete rectangular structure, such as... Figure 1 , 6 As shown, at this point, the walls 10 of each sewage tank can be assembled to form the side walls of the sewage tank. The sewage tank walls 10 can also be U-shaped, such as... Figure 9 As shown, the upper part of the sewage tank wall 10 has a notch, and a filter element 51 is installed in the notch. In this case, the sewage tank wall 10 equipped with the filter element 51 can be used as a filter wall 5. The lower part of the filter wall 5 can block the passage of solid pollutants deposited downwards in the sewage, and the filter element in the upper part of the filter wall 5 can filter the upper layer of sewage. The filter element 51 is existing technology and is detachably secured within the notch in the upper part of the filter wall 5. In this embodiment, as... Figure 9 As shown, the notch is rectangular, and the filter element 51 is a rectangular plate that matches the shape of the notch. The filter element 51 is inserted into the notch from top to bottom, and both end faces of the filter element 51 along its length are provided with first limiting grooves 511 extending vertically. The lower end face of the filter element 51 is provided with a second limiting groove extending along the length of the filter element. Correspondingly, the two sides of the notch along its length are provided with first limiting protrusions 100 extending vertically and matching the corresponding first limiting grooves 511, and the bottom surface of the notch is provided with a second limiting protrusion extending along the length of the notch and matching the corresponding second limiting groove. The insertion and engagement of each limiting protrusion with the limiting groove can constrain the filter element 51 within the notch and facilitate the installation and removal of the filter element 51.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An improved sewage tank wall, characterised in that, The utility model relates to a sewage pool wall connecting structure, comprising: vertically arranged first wall (1) and second wall (2) are arranged side by side with wall surface opposite attitude; Steel connecting framework (3) is connected by a plurality of distribution bars longitudinally and transversely, located between first wall (1) and second wall (2), and connected with first wall (1) and second wall (2), and steel connecting framework (3) has first side towards first wall (1) and second side towards second wall (2); Wall bottom connecting plate (4) extends along the length direction of steel connecting framework (3) and is arranged between the first side and the second side of steel connecting framework (3) and is connected with the first side and the second side, and the lower part of wall bottom connecting plate (4) extends relative to first wall (1) and second wall (2) and is used for connecting with sewage pool bottom foundation (20).

2. A lagoon wall according to claim 1, characterised in that: The upper part of the wall bottom connecting plate (4) has a plurality of connecting parts (401) connected in sequence along the length direction, and each connecting part (401) alternately connects the first side and the second side of the steel connecting framework (3) in sequence.

3. A lagoon wall according to claim 2, characterised in that: At least the upper part of the wall bottom connecting plate (4) is a wave-shaped structure formed by bending a steel plate multiple times and having alternately arranged first recesses and second recesses in the length direction, the opening directions of the first recesses and the second recesses are opposite, and correspond to the first side and the second side of the steel connecting framework (3) respectively, and the first recesses and the second recesses correspond to connect the second side and the first side of the steel connecting framework (3) as the connecting parts (401) respectively.

4. A lagoon wall according to claim 3, wherein: The first recess and the second recess are both U-shaped.

5. The lagoon wall of claim 1, wherein: The wall bottom connecting plate (4) is arranged corresponding to the bottom of the first wall (1) and the second wall (2), and forms structural isolation between the bottom of the first wall (1) and the bottom of the second wall (2).

6. A lagoon wall according to any one of claims 1 to 5 wherein: The steel connecting framework (3) comprises: A plurality of horizontal distribution bars (301) and a plurality of vertical distribution bars are longitudinally and transversely connected to form a frame structure with the first side and the second side; A plurality of tie bars (304), each tie bar (304) connects the horizontal distribution bar (301) and the vertical distribution bar, and each tie bar (304) has a first end extending relative to the first side and a second end extending relative to the second side, the first end is embedded in the first wall (1), and the second end is embedded in the second wall (2).

7. A lagoon wall according to claim 6, characterised in that: A plurality of vertical distribution bars arranged along the length direction of the steel connecting framework (3) form a column of bars, and the column of bars has two columns, and the two columns of bars form the first side and the second side of the steel connecting framework (3) respectively; Each column of bars comprises vertical connecting bars (302) and vertical non-connecting bars (303), and a predetermined number of vertical non-connecting bars (303) and a predetermined number of vertical connecting bars (302) are arranged alternately, and the vertical connecting bars (302) are connected with the wall bottom connecting plate (4).

8. A method of constructing a sewage tank wall as claimed in claim 6 or 7, characterised in that: The utility model relates to a sewage pool wall connecting structure, comprising: I. make steel connecting framework (3) and wall bottom connecting plate (4), connect the steel connecting framework (3) and the wall bottom connecting plate (4); II. Pouring the first wall (1) on the formwork, placing the first side of the steel bar connecting framework (3) on the wall surface of the first wall (1) so that the first end of the pull bar (304) of the steel bar connecting framework (3) is embedded in the first wall (1); III. After the first wall (1) reaches the predetermined strength, the first wall (1) is connected with the steel bar connecting framework (3), then pouring the second wall (2) at another place of the formwork, and after turning over the connected steel bar connecting framework (3) and the first wall (1), placing the second side of the steel bar connecting framework (3) on the wall surface of the second wall (2) so that the second end of the pull bar (304) of the steel bar connecting framework (3) is embedded in the second wall (2); IV. After the second wall (2) reaches the predetermined strength, the sewage pool wall (10) is obtained.

9. The method of manufacturing according to claim 8, wherein: The first wall (1) and the second wall (2) are both made of UHPC material, and the thickness of the first wall (1) and the second wall (2) is 40mm-50mm; The depth of the first end of the pull bar (304) embedded in the first wall (1) and the depth of the second end of the pull bar (304) embedded in the second wall (2) are both 20mm-30mm.

10. An assembly having a sewage tank wall as claimed in any one of claims 1 to 7, characterised in that, It also includes a sewage pool bottom foundation (20), and the sewage pool bottom foundation (20) has a foundation connecting piece (2001) connected with the lower part of the wall bottom connecting plate (4).

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