Fabricated mud pit steel box process

Abstract

The invention discloses an assembly type mud pit steel box process which comprises two first bottom plates, two second bottom plates are installed between the two first bottom plates, first side plates are attached to the opposite sides of the two first bottom plates, second side plates are attached to the opposite sides of the two second bottom plates, a plurality of lifting lugs are installed on the two first side plates, and the two first side plates are provided with lifting lugs. A plurality of connecting angle steels are mounted between the side plate I and the side plate II; and a plurality of butt joint holes I are formed in the bottom plate I. In order to further simplify the field installation process and improve the working efficiency, the bottom plate flanges are directly pre-welded in a raw material processing environment, and the water stop slurry strips are pre-adhered; according to the invention, a plurality of units can be quickly assembled easily by a single worker on site with the help of common tools (hoisting equipment is temporarily matched, and bolts are manually screwed by using an electric wrench), so that the construction period is greatly shortened, the labor intensity is reduced, and the mounting precision and consistency are improved.

Description

Technical Field

[0001] This invention relates to the field of infrastructure construction technology, specifically to a prefabricated steel box process for mud pits. Background Technology

[0002] In the field of infrastructure construction, the steel box of the mud pit is a key component of the temporary support structure, and the choice of its process directly affects the efficiency and cost control of the project.

[0003] Traditional steel box manufacturing processes are divided into two types: "finished product processing and purchasing from template factories" and "on-site cutting and welding processing." While each has its advantages, it also has its disadvantages.

[0004] High costs: During the factory prefabrication stage, for smaller orders, fixed costs such as mold development fees, depreciation of high-precision production equipment, and frequent logistics and transportation significantly increase the cost per unit. Mold development, in particular, not only involves large initial investments but also may lead to some equipment becoming idle after updates and iterations, further driving up unit costs. In the on-site welding process, due to the high reliance on skilled welders, and with labor costs rising year by year, labor costs account for a consistently high proportion of direct costs, potentially exceeding 40%, becoming a heavy burden. Furthermore, whether in factory prefabrication or on-site welding, traditional steel box production processes generally suffer from low material utilization rates, with scrap and waste loss rates typically reaching 15%-20%. This not only increases raw material costs but also leads to resource waste and environmental burden.

[0005] Transportation and recycling are challenging: Due to their enormous size, monolithic steel box girders are subject to width and height restrictions on highway bridges during transportation. Oversized components are not only difficult to transport but also require complex and expensive special permits. During on-site dismantling, a large amount of steel is deformed and cannot be directly reused. It requires time-consuming and energy-intensive pre-treatment steps such as straightening and rust removal to restore its original properties. Statistics from a large bridge renovation project show that the material reuse rate of traditional steel box girders during dismantling and recycling is extremely low, only about 30%, meaning that over 70% of material resources are wasted. This not only increases the environmental impact throughout the entire life cycle but also raises the overall project cost.

[0006] Environmentally unfriendly: Welding is a critical step in steel box production, and the resulting metal dust and harmful gases have a significant impact on the environment. Especially in urban construction environments, due to increasingly stringent environmental regulations, this traditional process is highly likely to trigger air quality standards, forcing projects to halt for rectification.

[0007] Therefore, this application proposes a prefabricated steel box process for mud pits to solve the above problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention provides a prefabricated steel box process for mud pits, which solves the problems of high cost, difficult transportation and recycling, unstable welding quality, and environmental pollution associated with traditional steel box processes for mud pits.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solution: a prefabricated steel box for mud pit, comprising two base plates, two base plates two installed between the two base plates, and side plates one attached to opposite sides of the two base plates, and side plates two attached to opposite sides of the two base plates, with multiple lifting lugs installed on each of the two side plates, and multiple connecting angle steels installed between the side plates one and the side plates two;

[0010] The base plate 1 has multiple mating holes 1, the base plate 2 has multiple mating holes 2, the side plate 1 has multiple mating holes 4 near the bottom, the side plate 2 has multiple mating holes 6 near the bottom, multiple bolts 1 are installed through the mating holes 1, and the ends of the multiple bolts 1 are respectively installed through the corresponding mating holes 4, and multiple bolts 2 are installed through the mating holes 2, and the ends of the multiple bolts 2 are respectively installed through the corresponding mating holes 6.

[0011] The above technical solution, by modularly designing components such as the base plate, side plates, and connecting angle steel, and using bolts to connect these components, enables rapid assembly and disassembly of the steel box. This structure not only improves construction efficiency and reduces labor intensity but also enhances the stability and sealing of the steel box. Furthermore, it facilitates transportation and reuse, effectively solving the problems of high cost, complex construction, material waste, and environmental impact associated with traditional processes, thus demonstrating significant economic and environmental benefits.

[0012] Preferably, the connecting angle steel has two mating holes 7, the side plate 1 has multiple mating holes 3 near the left and right sides, the side plate 2 has multiple mating holes 5 near the front and rear sides, and bolts 3 are installed through the cavities of the multiple mating holes 3 and the multiple mating holes 5, with the ends of the bolts 3 passing through the corresponding mating holes 7.

[0013] The above technical solution involves setting a seventh butt joint hole on the connecting angle steel, and setting a third and a fifth butt joint hole on side plate one and side plate two respectively. Bolts three are then inserted through these holes and connected to the seventh butt joint hole on the angle steel, achieving a stable connection between the side plates and the connecting angle steel. This design not only enhances the stability and integrity of the entire steel box structure but also facilitates rapid on-site assembly and disassembly through bolted connections, improving construction efficiency. Furthermore, it facilitates subsequent maintenance and reuse.

[0014] Preferably, multiple rib plates are fixedly installed on the first base plate, and multiple rib plates are fixedly installed on the second base plate.

[0015] The above technical solutions enhance the structural strength of base plate one and base plate two, preventing deformation due to stress during use, thereby ensuring the stability and load-bearing capacity of the entire prefabricated mud pit steel box.

[0016] Preferably, a water-stop strip is installed between the opposite side of each of the two base plates and the corresponding side plate, and a water-stop strip is installed between the opposite side of each of the two base plates and the corresponding side plate.

[0017] The above technical solutions improve the sealing performance between the bottom plate and the side plate, effectively preventing liquid from leaking from the joints in the mud pit, ensuring the waterproof performance of the mud pit, and maintaining the cleanliness and safety of the working environment.

[0018] Preferably, two water-stop strips are embedded in the outer wall of the connecting angle steel, and the two water-stop strips are respectively attached to the outer wall of side plate one and the outer wall of side plate two.

[0019] The above technical solution, through embedded installation, ensures the waterproof performance of the connection points, effectively prevents liquid leakage, and improves the waterproof effect and overall sealing of the entire prefabricated mud tank steel box. This better meets the waterproof requirements of the mud tank during use and ensures the safety and cleanliness of the working environment.

[0020] A prefabricated steel tank assembly process for mud pits, the process comprising the following steps:

[0021] Prefabrication stage: Various components are prefabricated in the factory, including base plate one, base plate two, side plate one, side plate two and connecting angle steel. During the prefabrication process, rib plate one and rib plate two are installed on base plate one and base plate two respectively to enhance the structural strength of the base plate.

[0022] Hole 1 and Hole 2 are respectively made on base plate 1 and base plate 2, Hole 4 and Hole 6 are respectively made on side plate 1 and side plate 2, and Hole 7 is made on connecting angle steel;

[0023] Install water-stop strip 1 and water-stop strip 2 between base plate 1 and side plate 1, and between base plate 2 and side plate 2, and embed water-stop strip 3 on the outer wall of the connecting angle steel;

[0024] Transportation Phase: The prefabricated components are transported to the construction site. Due to their modular design and small size, the components are easy to transport.

[0025] On-site installation phase: Place two base plates 1 parallel to each other, and install two base plates 2 between them. Attach side plate 1 to the opposite side of the two base plates 1, and connect side plate 1 to base plate 1 with bolt 1, which passes through docking hole 1 and docking hole 4. Attach side plate 2 to the opposite side of the two base plates 2, and connect side plate 2 to base plate 2 with bolt 2, which passes through docking hole 2 and docking hole 6. Install connecting angle steel between side plate 1 and side plate 2, and connect the connecting angle steel to side plate 1 and side plate 2 with bolt 3, which passes through docking hole 3, docking hole 5, and docking hole 7. After installation, check the tightness of each connection point to ensure the stability and sealing of the structure.

[0026] Usage phase: During the use of the mud pit, the lifting lugs on the side plate are used for hoisting or as tie rod supports to ensure the stability and safety of the mud pit;

[0027] Regularly check the sealing performance of the water-stop strip to ensure that the liquid in the mud pool does not leak;

[0028] Dismantling and recycling phase: After use, remove the bolts, separate the components, clean and maintain the separated components for future reuse.

[0029] The above technical solution enables efficient construction and convenient recycling of slurry pit steel boxes through factory prefabrication and rapid on-site assembly. The installation of ribs and water-stop strips during the prefabrication stage enhances structural strength and waterproofing performance; the modular design facilitates transportation and on-site installation, while bolted connections simplify the assembly process and improve construction efficiency; the hoisting design and sealing inspection during the usage phase ensure safe operation; and the ease of dismantling and recycling reduces the total life-cycle cost, thus improving the overall economic and environmental benefits of slurry pit steel boxes.

[0030] This invention provides a prefabricated steel box process for mud pits. It has the following beneficial effects:

[0031] 1. This invention, through standardized production and refined management, significantly improves steel utilization and effectively reduces material waste. Optimized design and large-scale production further reduce material procurement costs. Regarding labor costs, the use of prefabricated production and rapid on-site assembly drastically reduces the number of workers required and the intensity of labor, thus significantly lowering labor costs. From a life-cycle cost perspective, the modular process offers even greater sustainability advantages; it can be reused multiple times, significantly reducing the cost per use and bringing substantial economic benefits to the owner.

[0032] 2. This process employs a modular design, cleverly breaking down large structures into easily positioned small unit components. Manufacturing tolerances for connectors are controlled through a high-precision laser cutting system, significantly improving construction efficiency and accuracy. This design allows for easy manual installation, and the process is simple and quick. In practical applications, even non-professionals with minimal training can quickly master assembly skills, further enhancing construction efficiency.

[0033] 3. After decommissioning, the components in this modular construction process can be easily dismantled and reassembled into small-volume units, facilitating storage and transportation. These components can be readily used in new projects, achieving component recycling and maximizing resource utilization, further reducing overall project costs while minimizing resource waste and environmental impact. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0035] Figure 2 This is a schematic diagram of the planar structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the structure of the present invention;

[0038] Figure 5 This is a schematic diagram of the structure of the present invention;

[0039] Figure 6 This is a schematic diagram of the connecting angle steel structure of the present invention.

[0040] In the diagram: 1. Base plate one; 11. Rib plate one; 12. Butt hole one; 13. Water-stop strip one; 2. Base plate two; 21. Rib plate two; 22. Butt hole two; 23. Water-stop strip two; 3. Side plate one; 31. Butt hole three; 32. Butt hole four; 4. Side plate two; 41. Butt hole five; 42. Butt hole six; 5. Lifting lug; 6. Connecting angle steel; 61. Water-stop strip three; 62. Butt hole seven; 7. Bolt one; 8. Bolt two; 9. Bolt three. Detailed Implementation

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see the appendix Figure 1 -Appendix Figure 6 This invention provides a prefabricated steel box process for a mud pit, including two base plates 1, two base plates 2 installed between the two base plates 1, and side plates 3 attached to opposite sides of the two base plates 1, and side plates 4 attached to opposite sides of the two base plates 2, with multiple lifting lugs 5 installed on each of the two side plates 3, and multiple connecting angle steels 6 installed between the side plates 3 and the side plates 4.

[0043] The base plate 1 has multiple mating holes 12, the base plate 2 has multiple mating holes 22, the side plate 3 has multiple mating holes 32 near the bottom, the side plate 4 has multiple mating holes 42 near the bottom, the mating holes 7 are installed through the mating holes 12, and the ends of the multiple bolts 7 are respectively installed through the corresponding mating holes 432, the mating holes 22 have multiple bolts 8, and the ends of the multiple bolts 8 are respectively installed through the corresponding mating holes 642.

[0044] Specifically, base plate 1 and base plate 2 are combined to form an integral base plate with dimensions of 6000mm x 3000mm. Base plate 1 and side plate 3 are threadedly fixed together by multiple bolts 7, and base plate 2 and side plate 4 are threadedly fixed together by multiple bolts 8. Then, connecting angle steel 6 is installed between side plate 3 and side plate 4 to improve the overall connection strength. On-site, only a single worker needs to use common tools to easily complete the rapid assembly of multiple units, thereby significantly shortening the construction cycle, reducing labor intensity, and improving installation accuracy and consistency.

[0045] Two mating holes 62 are provided on the connecting angle steel 6. Multiple mating holes 31 are provided on the left and right sides of the side plate 1 3. Multiple mating holes 41 are provided on the front and rear sides of the side plate 2 4. Bolts 9 are installed through the cavities of the multiple mating holes 31 and the multiple mating holes 41. The ends of the bolts 39 pass through the corresponding mating holes 62.

[0046] Specifically, in use, bolts 3 and 9 are used to pass through mating holes 31, 62 and 41 and 62 to fix the angle steel 6 to the side plate 1 and side plate 2, thereby improving the connection strength between side plate 1 and side plate 2 and making the operation convenient.

[0047] Specifically, in use, multiple ribs 11 and multiple ribs 21 are used to strengthen the structure of the base plate 1 and the base plate 2, so as to prevent them from deforming.

[0048] Multiple ribs 11 are fixedly installed on base plate 1, and multiple ribs 21 are fixedly installed on base plate 2. Water-stop strips 13 are installed between the opposite sides of the two base plates 1 and their corresponding side plates 3, and water-stop strips 23 are installed between the opposite sides of the two base plates 2 and their corresponding side plates 4. Two water-stop strips 31 are embedded in the outer wall of the connecting angle steel 6, and the two water-stop strips 31 are respectively attached to the outer walls of side plates 3 and 4.

[0049] Specifically, in use, the cooperation of water-stop strip 13 and water-stop strip 23 improves the sealing effect between base plate 1, base plate 2, side plate 3, and side plate 4. This innovative measure not only completely eliminates the need for on-site welding, reducing fire risk and harmful gas emissions, but also ensures that the structure's waterproof performance meets design requirements, effectively preventing the possibility of liquid leakage and maintaining a clean and safe working environment. In use, the installation of water-stop strip 361, in conjunction with water-stop strip 13 and water-stop strip 23, further reduces fire risk and harmful gas emissions, prevents the possibility of liquid leakage, and maintains a clean and safe working environment.

[0050] Among them, the lifting lug 5 serves as a lifting hole when the mud is transferred in the mud pit, and as a tie rod seat when in use; when assembling, the water-stop grout strips 13, 23, and 61 should be attached first, and then the bolts 7, 8, and 9 should be installed.

[0051] A prefabricated steel box process for mud pits includes the following steps:

[0052] Prefabrication stage: Prefabricate various components in the factory, including base plate 1, base plate 2, side plate 3, side plate 4 and connecting angle steel 6. During the prefabrication process, rib plate 11 and rib plate 21 are installed on base plate 1 and base plate 2 respectively to enhance the structural strength of the base plate.

[0053] A first 12 and a second 22 are respectively made on the base plate 1 and the base plate 2, a fourth 32 and a sixth 42 are respectively made on the side plate 3 and the side plate 2, and a seventh 62 is made on the connecting angle steel 6.

[0054] Install water-stop strip 13 and water-stop strip 23 between base plate 1 and side plate 3, and between base plate 2 and side plate 4, and embed water-stop strip 3 61 on the outer wall of connecting angle steel 6;

[0055] Transportation Phase: The prefabricated components are transported to the construction site. Due to their modular design and small size, the components are easy to transport.

[0056] On-site installation phase: Place two base plates 1 parallel to each other, and install two base plates 2 between them. Attach side plate 3 to the opposite side of the two base plates 1, and connect side plate 3 to base plate 1 with bolt 7, which passes through docking hole 12 and docking hole 42. Attach side plate 4 to the opposite side of the two base plates 2, and connect side plate 4 to base plate 2 with bolt 8, which passes through docking hole 222 and docking hole 62. Install connecting angle steel 6 between side plate 3 and side plate 4, and connect connecting angle steel 6 to side plate 3 and side plate 4 with bolt 39, which passes through docking hole 31, docking hole 51, and docking hole 72. After installation, check the tightness of each connection point to ensure the stability and sealing of the structure.

[0057] Usage phase: During the use of the mud pit, the lifting lugs 5 on the side plate 3 are used for hoisting or as tie rod seats to ensure the stability and safety of the mud pit.

[0058] Regularly check the sealing performance of the water-stop strip to ensure that the liquid in the mud pool does not leak;

[0059] Dismantling and recycling phase: After use, remove the bolts, separate the components, clean and maintain the separated components for future reuse.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated steel box process for a mud pit, comprising two base plates (1), characterized in that: Two base plates (2) are installed between the two base plates (1), and side plates (3) are attached to the opposite side of the two base plates (1), and side plates (4) are attached to the opposite side of the two base plates (2). Multiple lifting lugs (5) are installed on the two side plates (3), and multiple connecting angle steels (6) are installed between the side plates (3) and the side plates (4). The base plate 1 (1) has multiple docking holes 1 (12), the base plate 2 (2) has multiple docking holes 2 (22), the side plate 1 (3) has multiple docking holes 4 (32) near the bottom, the side plate 2 (4) has multiple docking holes 6 (42) near the bottom, multiple bolts 1 (7) are installed through the docking hole 1 (12), and the ends of the multiple bolts 1 (7) are respectively installed through the corresponding docking hole 4 (32), multiple bolts 2 (8) are installed through the docking hole 2 (22), and the ends of the multiple bolts 2 (8) are respectively installed through the corresponding docking hole 6 (42).

2. The prefabricated steel box process for mud pits according to claim 1, characterized in that: The connecting angle steel (6) has two mating holes 7 (62). The side plate 1 (3) has multiple mating holes 3 (31) near the left and right sides. The side plate 2 (4) has multiple mating holes 5 (41) near the front and rear sides. Bolts 3 (9) are installed through the cavities of the multiple mating holes 3 (31) and the multiple mating holes 5 (41). The ends of the bolts 3 (9) pass through the corresponding mating holes 7 (62).

3. The prefabricated steel box process for mud pits according to claim 1, characterized in that: Multiple rib plates 1 (11) are fixedly installed on the base plate 1 (1), and multiple rib plates 2 (21) are fixedly installed on the base plate 2 (2).

4. The prefabricated steel box process for mud pits according to claim 1, characterized in that: Water-stop strip 1 (13) is installed between the opposite side of the two base plates 1 (1) and the corresponding side plate 1 (3), and water-stop strip 2 (23) is installed between the opposite side of the two base plates 2 (2) and the corresponding side plate 2 (4).

5. The prefabricated steel box process for mud pits according to claim 1, characterized in that: Two water-stop strips (61) are embedded in the outer wall of the connecting angle steel (6), and the two water-stop strips (61) are respectively attached to the outer wall of side plate one (3) and the outer wall of side plate two (4).

6. The prefabricated steel box process for mud pits according to claim 1, characterized in that: The process includes the following steps: Prefabrication stage: Prefabricate various components in the factory, including base plate one (1), base plate two (2), side plate one (3), side plate two (4) and connecting angle steel (6). During the prefabrication process, rib plate one (11) and rib plate two (21) are installed on base plate one (1) and base plate two (2) respectively to enhance the structural strength of the base plate. Hole 1 (12) and hole 2 (22) are respectively opened on base plate 1 (1) and base plate 2 (2), hole 4 (32) and hole 6 (42) are respectively opened on side plate 1 (3) and side plate 2 (4), and hole 7 (62) is opened on connecting angle steel (6); Install water-stop strip 1 (13) and water-stop strip 2 (23) between base plate 1 (1) and side plate 1 (3) and between base plate 2 (2) and side plate 2 (4), and embed water-stop strip 3 (61) on the outer wall of connecting angle steel (6); Transportation Phase: The prefabricated components are transported to the construction site. Due to their modular design and small size, the components are easy to transport. On-site installation stage: Place two base plates (1) in parallel and install two base plates (2) between them. Attach side plate (3) to the opposite side of the two base plates (1) and connect side plate (3) to base plate (1) with bolt (7). Bolt (7) passes through mating hole (12) and mating hole (42). Attach side plate (4) to the opposite side of the two base plates (2) and connect side plate (4) to base plate (2) with bolt (8). 2) Connection: Bolt 2 (8) passes through the mating hole 2 (22) and the mating hole 6 (42). Install the connecting angle steel (6) between side plate 1 (3) and side plate 2 (4), and connect the connecting angle steel (6) to side plate 1 (3) and side plate 2 (4) with bolt 3 (9). Bolt 3 (9) passes through the mating hole 3 (31), the mating hole 5 (41) and the mating hole 7 (62). After installation, check the tightness of each connection point to ensure the stability and sealing of the structure. Use stage: During the use of the mud tank, the lifting lugs (5) on the side plate (3) are used for hoisting or as tie rod seats to ensure the stability and safety of the mud tank; Regularly check the sealing performance of the water-stop strip to ensure that the liquid in the mud pool does not leak; Dismantling and recycling phase: After use, remove the bolts, separate the components, clean and maintain the separated components for future reuse.

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