Non-linear S-shaped wide and thick plate factory modularization rapid building construction method

Abstract

The invention relates to a modular rapid building construction method for a nonlinear S-shaped wide and thick plate factory, which comprises the following steps of: dividing a process production line into a plurality of construction areas by taking a movable ground assembled jig frame as a precision control platform; the parallel flow construction that main line deep foundations are conducted first and auxiliary line shallow foundations are conducted later is synchronously executed in all the areas, and an operation cycle of opening and closing combination and vertical crossing is formed through installation with a workshop steel structure; and through overall three-dimensional measurement and adjustable interface positioning, precise closing is carried out on an S-shaped turning and linear section equipment foundation interface, and finally synchronous, precise and rapid construction of the equipment foundation and the steel structure under nonlinear arrangement is achieved.

Description

Technical Field

[0001] This invention relates to the field of civil engineering, specifically to a method for the rapid modular construction of non-linear S-shaped wide and thick plate plants. Background Technology

[0002] With the booming development of the steel industry, large steel enterprises have an increasingly urgent need to upgrade their production equipment and expand their production capacity. Against this backdrop, a large steel enterprise plans to build a new heavy plate mill to enhance its market competitiveness. However, the heavy plate mill's production line design is unique; it is not a traditional linear production line, but rather a non-linear "S"-shaped production line.

[0003] This non-linear "S"-shaped production line has many advantages. It can better adapt to the terrain and spatial layout of the factory area, improving land use efficiency. In terms of the production process, it can reduce the transportation distance and time of materials, improving production efficiency. However, at the same time, it also brings huge challenges to construction.

[0004] Traditional linear production line construction methods typically involve sequential, overlapping processes. This means that one area is completed before moving on to the next, with each stage operating relatively independently and lacking overall cohesion and coordination. However, this approach has revealed problems for non-linear "S"-shaped production lines in thick plate mills.

[0005] In terms of construction period, the construction process was carried out in sequence in each area, which resulted in an excessively long construction time.

[0006] In terms of construction efficiency, traditional construction methods have poor connections between various processes, which can easily lead to idle time.

[0007] In terms of construction costs, traditional construction methods result in a long construction period and significantly increased labor costs.

[0008] Therefore, the existing traditional construction procedures can no longer meet the construction requirements of the thick plate plant of the non-linear "S" shaped process production line. There is an urgent need for a brand-new construction method to improve construction efficiency, shorten the construction cycle, and reduce construction costs. Summary of the Invention

[0009] This invention aims to overcome the shortcomings of existing technologies and provide a modular rapid construction method for non-linear S-shaped thick plate plants, solving problems such as long construction cycles, low construction efficiency, and high construction costs in non-linear "S"-shaped process production lines for thick plate plants.

[0010] To solve the above-mentioned technical problems, the present invention is implemented as follows: A modular rapid construction method for a non-linear S-shaped wide and thick plate plant is characterized by: using a movable ground assembly jig as a precision control platform to divide the production line into multiple construction areas; simultaneously executing parallel flow construction in each area, with the main line's deep foundation first and the auxiliary line's shallow foundation later, forming an "open and closed, three-dimensional intersection" work cycle with the installation of the plant's steel structure; and using overall three-dimensional measurement and adjustable interface positioning to precisely close the interfaces of the "S"-shaped turns and straight sections of the equipment foundation, ultimately achieving synchronous, precise, and rapid construction of the equipment foundation and steel structure under non-linear layout.

[0011] The aforementioned modular rapid construction method for a non-linear S-shaped wide and thick plate plant is characterized by the following operation cycle: during the main line deep foundation opening construction stage, the steel structure of the plant corresponding to the shallow foundation of the auxiliary line is installed first; after the main line deep foundation is completed and backfilled, the opening is then made to install the steel structure of the plant corresponding to the main line, forming a situation where the foundation and steel structure construction serve as working surfaces for each other and are carried out in an interleaved manner without waiting.

[0012] The modular rapid construction method for a non-linear S-shaped wide and thick plate plant is characterized by the following steps: Step 1: Measurement and positioning; Step Two: Organize the construction of equipment foundations by zone; Step 3: The main foundation and deep foundation of the equipment shall be constructed first, followed by the auxiliary foundation and shallow foundation, and the construction shall be combined with the installation of the steel structure of the factory building. Step 4: Construction of key parts of equipment foundation interfaces on each straight section and at each "S" shaped bend; Step 5: The steel structure of the factory building and the auxiliary parts of the equipment foundation are constructed in a staggered and three-dimensional manner until the entire line is connected.

[0013] The method for modular rapid construction of a non-straight S-shaped wide and thick plate plant is characterized in that step one specifically includes: firstly, establishing a plant measurement control network throughout the site, and then establishing a foundation measurement control network. The two-level control networks are closed-loop re-measured using a total station, with an overall plane error of ≤±2 mm. All subsequent construction areas are laid out based on this control network.

[0014] The modular rapid construction method for a non-linear S-shaped thick plate plant is characterized in that step two specifically includes: dividing the civil engineering equipment foundation into eight major areas according to the process layout: heating furnace area, rolling mill area, straightening area, cooling bed area, shearing area, thick plate processing area, heat treatment area, slag flushing ditch and cyclone pool area. Each area is equipped with an independent transportation channel and material storage yard, so as to realize parallel flow operation of the eight major areas simultaneously without interference.

[0015] The modular rapid construction method for a non-linear S-shaped wide and thick plate plant is characterized in that step three specifically includes: a) first opening up the construction of the main equipment foundations of the heating furnace area, rolling mill area, and straightening area, as well as the slag flushing trench and cyclone pool deep foundations; b) Auxiliary foundations and other shallow foundations in the post-closed construction cooling bed zone, shearing zone, thick plate treatment zone, heat treatment zone; c) At the same time, the steel structure of the factory building corresponding to the auxiliary line is installed first, and then the steel structure of the factory building corresponding to the main line is installed, forming a three-dimensional operation cycle of "opening and closing" with deep foundation excavation, steel structure installation and backfilling.

[0016] The modular rapid construction method for a non-straight S-shaped wide and thick plate plant is characterized in that step four specifically includes: performing overall three-dimensional coordinate re-measurement of the equipment foundation interfaces at the straight section and the "S"-shaped bend, and performing three-dimensional fine-tuning through adjustable templates or shims to ensure that the cumulative error of the interfaces of adjacent module units is ≤±3 mm, thereby ensuring the full-length precision closure of the rolling line.

[0017] The modular rapid construction method for a non-linear S-shaped thick plate plant is characterized in that step five specifically includes: after the main equipment foundation and main structure are completed, the remaining steel structure corners, enclosures and auxiliary parts are installed by a combination of boom lift truck and truck crane, and the interleaved flow and three-dimensional cross operation continues until the "S" shaped production line is fully connected and the overall construction of the thick plate plant is completed.

[0018] The beneficial effects of this invention are as follows: As can be seen from the above technical solution, this application provides a modular rapid construction method for a non-linear S-shaped thick plate mill. Traditional sequential overlapping construction can only proceed in a "single thread," with deep foundation pits, shallow foundations, and steel structures waiting in layers, often resulting in an overall construction period that is extended by more than 30%. This solution, through a construction organization of "regional parallelism + open-closed combination," divides the entire line into eight major areas for simultaneous construction: the main line deep foundation pit and the auxiliary line shallow foundation do not interfere with each other, and the steel structure of the plant and backfilling work are carried out in an overlapping manner, forming multiple parallel operation lines on site. Engineering measurements show that the construction cycle of a thick plate mill of the same scale is shortened from 18 months to 12 months, and the key construction period is advanced by 25% to 35%, creating the possibility for owners to achieve "construction and production simultaneously." The non-linear "S"-shaped layout causes the equipment foundation to extend in a zigzag pattern. Traditional layout errors can accumulate to ±15 mm over long distances, and precision equipment such as rolling mills and cooling beds often require secondary hole enlargement or shim leveling. This solution utilizes a movable assembly jig on the ground, coupled with a two-level measurement and control network (factory network + foundation network). First, the modular units undergo three-dimensional calibration within the jig. Then, adjustable templates / shims are used for closed-loop fine-tuning of the "S"-shaped turns and straight-line interfaces, with the cumulative error consistently controlled within ±3 mm. This improved accuracy directly increases the first-time installation success rate from 75% to 98%, and reduces subsequent grouting and shim adjustment work by 70%. Deep foundation pits are constructed in sections using a "skip-section method + open-close combination," reducing the exposed area by 40% and significantly lowering the risk of slope collapse. Steel structure installation and foundation backfilling are carried out simultaneously, eliminating the need for workers to work suspended in the air for extended periods. Corner and high-altitude challenging areas are installed using a combination of articulated boom cranes and truck cranes, reducing high-altitude exposure time by 70%, achieving the goal of "zero deaths and zero serious injuries" on-site, and simultaneously reducing safety investment by 30%. The movable frame and temporary access are all bolted together, allowing for quick disassembly, relocation, and reuse more than 20 times; on-site cutting and welding fumes are reduced by 60%, and construction waste is reduced by 0.8 t / 10,000 m². 2 Modular construction reduces material storage area by 30% and site road occupation by less, truly achieving integrated construction of "factory precision + on-site speed + green and low carbon". Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the process of the present invention. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application. like Figure 1 As shown, a modular rapid construction method for a non-linear S-shaped wide and thick plate plant is used. A movable ground-mounted assembly frame serves as a precision control platform, dividing the production line into multiple construction areas. Parallel flow construction, with "deep foundations for the main line first, shallow foundations for the auxiliary line later," is executed simultaneously in each area, forming an "open-closed, three-dimensional cross-operation" work cycle with the steel structure installation of the plant. Through overall three-dimensional measurement and adjustable interface positioning, the interfaces of the equipment foundations for the "S"-shaped turns and straight sections are precisely closed, ultimately achieving synchronous, precise, and rapid construction of the equipment foundations and steel structure under non-linear layouts.

[0021] The "opening and closing combination, three-dimensional intersection" work cycle is as follows: during the deep foundation opening construction stage of the main line, the steel structure of the factory corresponding to the shallow foundation of the auxiliary line is installed first; after the deep foundation of the main line is completed and backfilled, the opening is then made to install the steel structure of the factory corresponding to the main line, forming a situation where the foundation and steel structure construction are mutually working surfaces and can be carried out in an interleaved manner without waiting.

[0022] The construction process of this invention is as follows: 1. Measurement and positioning → 2. Organize equipment foundation construction by zone → 3. Construct the main line and deep foundation of equipment foundation first, and then construct the auxiliary line and shallow foundation, and combine it with the installation of the steel structure of the factory building → 4. Construct the key parts of the equipment foundation interface on each straight section, and construct the key parts of the equipment foundation interface at each "S" shaped bend → 5. Carry out the auxiliary parts of the steel structure of the factory building and the equipment foundation in a continuous and three-dimensional manner until the entire line is connected.

[0023] The specific steps are as follows: Step 1: Measurement and Positioning The locations of the steel structure workshop and equipment foundations are accurately measured and positioned according to the construction drawings. First, a control network for the workshop's measurements is established, followed by a control network for the foundation measurements.

[0024] Step 2: Organize the construction of equipment foundations by zone After step 2 is completed, the civil engineering equipment foundations will be divided into eight major construction areas according to the process layout: heating furnace area, rolling mill area, straightening area, cooling bed area, shearing area, thick plate processing area, heat treatment area, slag flushing ditch and cyclone pool area. Construction will be organized in these zones. Dividing the construction areas facilitates subsequent parallel and sequential construction, accelerates the construction speed, and shortens the construction period.

[0025] Step 3: The main foundation and deep foundation of the equipment shall be constructed first, followed by the auxiliary foundation and shallow foundation, and the construction shall be combined with the installation of the steel structure of the factory building. After step 2 is completed, the equipment foundations will be constructed first, including the main equipment foundations such as the heating furnace area, rolling mill area, and straightening area, as well as deep foundations such as the slag flushing trench and cyclone pool. Then, the auxiliary equipment foundations such as the cooling bed area, shearing area, thick plate processing area, and heat treatment area, and other shallow foundations will be constructed in a closed manner. For the plant steel structure, the cooling bed area, shearing area, thick plate processing area, and heat treatment area will be constructed first, followed by the heating furnace area, rolling mill area, and straightening area. This means that the steel structure of the plant in the main equipment foundation, deep foundation, auxiliary equipment, and shallow foundation areas can all be constructed simultaneously without interference, accelerating the construction speed and shortening the construction period.

[0026] Step 4: Construction of key components of equipment foundation interfaces on each straight section and at each "S"-shaped bend. After step 3 is completed, the equipment foundations on each straight section are measured, verified, and precisely adjusted for positioning. Key locations for the straight-line interfaces between the equipment foundations in the heating furnace area and the rolling mill area, the rolling mill area and the straightening area, and the rolling mill area and the cooling bed area are then constructed. Similarly, the equipment foundations at each "S"-shaped bend are measured, verified, and precisely adjusted for positioning. Key locations for the "S"-shaped interfaces between the equipment foundations in the cooling bed area and the thick plate processing area, the cooling bed area and the shearing area, and the shearing area and the heat treatment area are then constructed. This process is equivalent to first controlling the construction accuracy of individual equipment foundations, then controlling the construction accuracy of the interfaces between the equipment foundations, thereby controlling the construction accuracy of the equipment foundations throughout the entire "S"-shaped rolling production line.

[0027] Step 5: The steel structure of the factory building and the auxiliary parts of the equipment foundation are constructed in a continuous and three-dimensional manner until the entire line is connected.

[0028] After step 4 is completed, the steel structure of the factory building and the auxiliary parts of the equipment foundation are constructed using a staggered, sequential, and three-dimensional approach until the entire line is connected and the factory building is completed. After the main parts of the steel structure and equipment foundation are completed, the remaining auxiliary parts are constructed. For the corner parts of the steel structure that are difficult to construct, a combination of articulated boom cranes and truck cranes is used for installation.

[0029] Compared with the sequential overlapping construction method used in traditional linear production lines, this technical solution has made systematic improvements in the following three aspects, thereby directly solving the problems of "long construction cycle, low efficiency, and high cost": 1. Partitioned parallel pipeline The foundations of all equipment along the line are divided into eight major areas according to their process functions. The deep foundation pits of the main line and the shallow foundations of the auxiliary line are started and advanced in parallel, eliminating the traditional long-term waiting and shortening the construction period by about 25%-35%.

[0030] 2. Opening and closing combined three-dimensional intersection The foundation construction and the steel structure installation of the factory building are carried out in a staggered manner and serve as working surfaces for each other, forming a three-dimensional cycle of "deep foundation opening - steel structure insertion - backfilling closure". The utilization rate of machinery is increased to more than 80%, and the overall cost is reduced by 12% to 18%.

[0031] 3. Precision control throughout the entire process By using a two-level measurement control network, a movable assembly jig, and adjustable interface positioning, the basic interface error at straight sections and "S"-shaped turns is locked within ±3 mm, ensuring successful installation of the rolling line on the first attempt and avoiding rework.

[0032] The above are merely embodiments provided in this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A modular rapid construction method for a non-linear S-shaped wide and thick plate plant, characterized in that: Using a movable ground-mounted assembly jig as a precision control platform, the production line is divided into multiple construction areas. Parallel flow construction, with "deep foundations first for the main line and shallow foundations later for the auxiliary line," is carried out simultaneously in each area, forming an "open-closed, three-dimensional cross" work cycle with the installation of the steel structure of the factory building. Through overall three-dimensional measurement and adjustable interface positioning, the interfaces of the equipment foundations for "S"-shaped turns and straight sections are precisely closed, ultimately achieving synchronous, precise, and rapid construction of equipment foundations and steel structures under non-linear layouts.

2. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that: The "opening and closing combination, three-dimensional intersection" work cycle is as follows: during the deep foundation opening construction stage of the main line, the steel structure of the factory corresponding to the shallow foundation of the auxiliary line is installed first; after the deep foundation of the main line is completed and backfilled, the opening is then made to install the steel structure of the factory corresponding to the main line, forming a situation where the foundation and steel structure construction are mutually working surfaces and can be carried out in an overlapping manner without waiting.

3. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Specifically, the steps include the following: Step 1: Measurement and positioning; Step Two: Organize the construction of equipment foundations by zone; Step 3: The main line and deep foundation of the equipment foundation are constructed first, followed by the auxiliary line and shallow foundation, and the construction is combined with the installation of the steel structure of the factory building. Step 4: Construction of key parts of equipment foundation interfaces on each straight section and at each "S" shaped bend; Step 5: The steel structure of the factory building and the auxiliary parts of the equipment foundation are constructed in a staggered and three-dimensional manner until the entire line is connected.

4. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Step one specifically includes: first, establishing a factory building measurement control network throughout the site, and then establishing a basic measurement control network. The two-level control networks are closed-loop remeasured using a total station, with an overall plane error of ≤±2 mm. All subsequent construction areas are laid out based on this control network.

5. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Step two specifically includes: dividing the civil engineering equipment foundation into eight major areas according to the process layout: heating furnace area, rolling mill area, straightening area, cooling bed area, shearing area, thick plate processing area, heat treatment area, slag flushing ditch and cyclone pool area. Each area is equipped with an independent transportation channel and material storage yard to achieve parallel flow operation of the eight major areas at the same time without interference.

6. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Step three specifically includes: a) first constructing the foundations of the main equipment in the heating furnace area, rolling mill area, and straightening area, as well as the deep foundations of the slag flushing ditch and cyclone pool; b) Auxiliary foundations and other shallow foundations in the post-closed construction cooling bed zone, shearing zone, thick plate treatment zone, heat treatment zone; c) At the same time, the steel structure of the factory building corresponding to the auxiliary line is installed first, and then the steel structure of the factory building corresponding to the main line is installed, forming a three-dimensional operation cycle of "opening and closing" with deep foundation excavation, steel structure installation and backfilling.

7. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Step four specifically includes: performing a comprehensive three-dimensional coordinate remeasurement of the equipment foundation interface at the straight section and the "S"-shaped bend, and making three-dimensional fine adjustments using adjustable templates or shims to ensure that the cumulative error of the interface between adjacent module units is ≤ ±3 mm, thereby ensuring the full-length precision closure of the rolling line.

8. The modular rapid construction method for a non-linear S-shaped wide and thick plate plant according to claim 1, characterized in that... Step five specifically includes: after the main equipment foundation and main structure are completed, the remaining steel structure corners, enclosures and auxiliary parts are installed using a combination of boom lift truck and truck crane, and the interleaved and three-dimensional cross-operations are continued until the "S" shaped production line is fully connected and the overall construction of the thick plate plant is completed.

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