A method for designing and constructing a data center cluster of barrel foundations

Abstract

The application provides a barrel foundation data center cluster design and construction method, and is suitable for the technical field of submarine data center construction. The data center cluster comprises a barrel foundation structure cluster, a submarine pipe gallery cluster, a special connection structure and a trestle bridge. The barrel foundation structure cluster, the submarine pipe gallery cluster, the special connection structure and the trestle bridge are combined, the special connection structure of the submarine pipe gallery and the barrel foundation is connected, the sealing performance is guaranteed through prestressed technology and a water stop device, the efficient connection between the data center cluster and the shore-based resources can be realized, the passing and transfer of personnel, vehicles and equipment are considered through the compartment arrangement and structure design inside the barrel foundation, the trestle bridge provides a convenient traffic channel between the shore-based resources and the data center cluster, the overall settlement is effectively controlled through accurate settlement optimization analysis and foundation reinforcement measures, and the differential settlement between the sub-clusters is minimized.

Description

Technical Field

[0001] This invention relates to a method for designing and constructing a data center cluster based on a barrel foundation, applicable to the field of submarine data center construction technology. Background Technology

[0002] As a crucial branch of green digital infrastructure, seabed data centers are emerging as a cutting-edge field in the integration of the global marine economy and information technology. Compared to traditional land-based data centers, seabed data centers demonstrate unique value in coastal economic zones and areas with high computing power demands due to their energy-saving advantages from natural seawater cooling, low-latency data transmission characteristics, and potential for land conservation. In recent years, domestic and international companies have launched several pilot projects for seabed data centers, validating their technological feasibility. However, the demands for large-scale and clustered development place higher requirements on the engineering of seabed data centers—how to achieve efficient connectivity between data center clusters and shore-based resources in complex marine environments, ensuring convenient access for personnel, vehicles, and equipment, and guaranteeing long-term stable operation has become a core bottleneck restricting their large-scale promotion.

[0003] Starting from the connection between the barrel foundation and the submarine utility tunnel, this paper studies the design and construction methods of data center clusters, solves the problem of connecting submarine data centers with onshore resources, and proposes a design and construction method for data center clusters using a barrel foundation. Summary of the Invention

[0004] The purpose of this invention is to solve the problem of connecting submarine data centers with onshore resources. It provides a barrel-based data center cluster design and construction method that can facilitate the access of personnel, vehicles and equipment, and ensure long-term stable operation. It can be widely applied in the field of submarine data center construction technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A data center cluster with a barrel-shaped foundation includes a barrel-shaped foundation structure cluster, a submarine utility tunnel cluster, a dedicated connecting structure, and a trestle fixed to the shore at one end. The barrel-shaped foundation structure cluster includes multiple barrel-shaped foundation structures, each being a large-diameter concrete cylinder internally divided into compartments by partition walls. The submarine utility tunnel cluster includes multiple submarine utility tunnels, each equipped with multiple first-type connectors for connection to other submarine utility tunnels. Each submarine utility tunnel connects to the barrel-shaped foundation structure using second-type connectors. When connecting the submarine utility tunnel to the barrel-shaped foundation structure, a dedicated connecting structure is provided on the bottom side of the barrel-shaped foundation structure. This dedicated connecting structure uses GINA and OMEGA waterstops and incorporates OMEGA waterstop mounting components. The other end of the trestle connects to the top of the barrel-shaped foundation structure.

[0007] As a preferred embodiment of the present invention, the side wall of the special connection structure and the partition wall of the barrel foundation structure are located on the same plane.

[0008] A bucket-based data center cluster design methodology includes the following steps:

[0009] S101. Structural deformation stability calculation of the trestle under human and vehicle load conditions;

[0010] S102. Stress and deformation stability calculation of barrel foundation structure cluster under marine environment and seismic action, and the planning of internal space size should take into account the transfer of people, vehicles and maintenance equipment.

[0011] S103. Stress and deformation stability calculation of submarine utility tunnel clusters under marine environment and seismic action;

[0012] S104, Design of internal vehicle passages, pipeline passages, ventilation, lighting functions, and ladder structures for personnel to move up and down in the barrel foundation structure cluster and the submarine utility tunnel cluster.

[0013] S105. Calculate the reinforcement amount of poor foundation for different submarine utility tunnel cluster layout schemes, use it as a parameter for scheme optimization, and determine the optimal submarine utility tunnel cluster layout scheme.

[0014] S106 Settlement optimization analysis and further optimization layout of barrel foundation structure cluster and submarine pipe gallery cluster.

[0015] As a preferred embodiment of the present invention, in step S105, the reinforcement amount is obtained through the following steps:

[0016] 1) Calculate the standard deviation parameter for each soil layer. When the standard deviation is greater than the threshold σ, T At that time, the standard deviation was used as input to evaluate the cost of foundation reinforcement;

[0017] 2) When using crushed stone foundation treatment, determine the total scope of crushed stone foundation treatment and reinforcement volume based on the width and depth of foundation reinforcement;

[0018] 3) When using mixing piles for reinforcement, determine the spacing, depth, and diameter parameters of the mixing piles, and determine the total amount of mixing pile reinforcement.

[0019] As a preferred technical solution of the present invention, in step S106, the subsea utility tunnel cluster settlement optimization analysis includes the following steps:

[0020] 1) Based on the layout of the submarine utility tunnel cluster and the distribution of the connection between the barrel foundation structure and multiple submarine utility tunnels, determine the sub-clusters of the data center cluster.

[0021] 2) Based on the preset cross-sectional parameters of the barrel foundation structure and the submarine pipe gallery structure, calculate the self-weight and ballast parameters of the barrel foundation structure and the submarine pipe gallery structure.

[0022] 3) Calculate the average foundation load of the submarine utility tunnel foundation and the average foundation load of the barrel foundation structure, using the load as the input parameter.

[0023] 4) The calculated settlement of the subsea utility tunnel and the barrel foundation structure is used as input, and the initial iterative settlement of the subsea utility tunnel and the barrel foundation structure is set to 0.

[0024] 5) Based on the structure of each sub-cluster, establish a numerical model for settlement calculation according to the submarine pipe gallery and barrel foundation structure;

[0025] 6) Establish a settlement calculation model for multi-layered soil, calculate the settlement at different locations of the submarine pipe gallery and the barrel foundation structure, and calculate the final settlement of the sub-cluster structure.

[0026] 7) Calculate the settlement of the sub-cluster structure submarine pipe gallery and the barrel foundation structure. When the difference between the two settlements meets the preset parameters, terminate the iteration; if the requirements are not met, adjust the overall size parameters of the barrel foundation and the bottom foundation, and repeat steps 3) to 7).

[0027] 8) Determine the overall dimensions of the sub-cluster structure submarine utility tunnel and barrel foundation structure;

[0028] 9) Based on the optimized parameters and deformation of each sub-cluster structure, the differences in settlement and displacement deformation between sub-clusters are analyzed; the optimization objective is to reduce the differential settlement between adjacent sub-clusters.

[0029] 10) Calculate the overall differential settlement standard deviation. If the standard deviation does not meet the preset requirements, adjust the sub-cluster division based on the subsea tunnel settlement data at different locations of each sub-cluster and redetermine the sub-cluster system scope; restart the iterative analysis from step 1); terminate when the requirements are met.

[0030] A method for constructing a bucket-based data center cluster includes the following steps:

[0031] S201. Offshore construction of trestle pile foundations, pile caps, crossbeams, longitudinal beams, and prestressed beams;

[0032] S202, Construction of the lower foundation of the barrel foundation structure and the submarine pipe gallery;

[0033] S203. Construction of the barrel foundation structure: The barrel foundation structure is transported by floating on water using tugboats to the installation position, and the ballast well is filled with water to sink it. After sinking to the designated position, the boulders and torsion blocks are installed to prevent disturbance.

[0034] S204. The installation of the submarine utility tunnel in the sea is carried out by barge sinking method. While the submarine utility tunnel is floating in the sea, two barges are arranged at both ends. The barges are moored at four points in the sea, and two winches are arranged at each point to realize the sinking of the submarine utility tunnel into the foundation bed by water injection in the sea.

[0035] S205. For the connection construction between the subsea utility tunnel and the barrel foundation structure, winches are installed on top of the dedicated connection structure of the barrel foundation structure, and four cable-spinning bollards are placed at the four corners of the joint section. The two subsea utility tunnels are installed symmetrically and simultaneously, and are sunk to the predetermined positions using a barge. The four winch cables of each dedicated connection structure are connected to the mooring points at the four corners of the second type of connector end of the subsea utility tunnel, pulling the subsea utility tunnel towards the docking end on the foundation surface, pressing the waterstop onto the end face of the dedicated connection structure of the barrel foundation structure, and achieving initial waterstopping. The process involves: pumping water out of the barrel foundation structure and using a barge for continuous shearing to preload the structure; sequentially removing one end face of the barrel foundation structure and one end face of the subsea utility tunnel from the dedicated connection structure within the barrel foundation structure; installing OMEGA waterstops using embedded parts; connecting the two anchor plates of the two subsea utility tunnels with prestressed steel cables and tensioning the prestress to compress the GINA waterstops to a predetermined amount; and installing shear keys for the dedicated connection structure between the subsea utility tunnel and the barrel foundation structure to ensure the overall shear resistance of the subsea utility tunnel and the barrel foundation structure.

[0036] S206. For the connection construction between submarine utility tunnels, a specialized floating barge is used, equipped with winches. Four cable-spinning bollards are placed at the four corners of the first-type connector section of each submarine utility tunnel, for a total of eight sets. The two submarine utility tunnels are installed symmetrically and simultaneously, using a barge to sink them to the predetermined positions. The four winch cables of each submarine utility tunnel's first-type connector are connected to the mooring points at the four corners of the side of the first-type connector end of the main submarine utility tunnel on the axis of symmetry. This pulls the two symmetrical submarine utility tunnels towards the docking end on the bed surface, pressing the waterstop onto the... Initial watertightness is achieved on the end face of the dedicated connection structure of the main subsea utility tunnel; water is pumped out from the docking end of the main subsea utility tunnel and continuously moved by a dedicated floating barge to achieve preload; the two end faces of the dedicated connection structure are sequentially removed inside the connected main subsea utility tunnel; OMEGA waterstops are installed through embedded parts; the two anchor plates of the two subsea utility tunnels are connected by prestressed steel cables and prestressed to compress the GINA waterstops to the preset amount; shear keys of the dedicated connection structure of the subsea utility tunnel are installed to ensure the overall shear resistance of the subsea utility tunnel cluster.

[0037] S207. Install the external protective structure for the connection, using a combination of steel shell and geotextile materials to provide external protection for the connection.

[0038] The beneficial effects of this invention are as follows: By employing a combination of barrel-type foundation structure clusters, submarine utility tunnel clusters, dedicated connecting structures, and trestle bridges, and utilizing the dedicated connecting structures of the submarine utility tunnels and barrel-type foundations for connection, while ensuring sealing performance through prestressed technology and waterstop devices, efficient connection between the data center cluster and shore-based resources can be achieved. The internal layout and structural design of the barrel-type foundations take into account the passage and transfer of personnel, vehicles, and equipment, while the trestle bridges provide convenient transportation channels between the shore-based infrastructure and the data center cluster. Through precise settlement optimization analysis and foundation reinforcement measures, overall settlement is effectively controlled, ensuring that differential settlement between each sub-cluster is minimized. Attached Figure Description

[0039] Figure 1 This is a flowchart of the design method for a bucket-based data center cluster according to the present invention;

[0040] Figure 2 This is a flowchart of the construction method of the bucket-based data center cluster of the present invention;

[0041] Figure 3 This is a schematic diagram of the planar structure of the data center cluster based on the bucket-type foundation of the present invention;

[0042] Figure 4 This is a side view of the data center cluster based on the barrel-shaped foundation of the present invention.

[0043] The attached diagram is labeled as follows: 1-Barrel foundation structure, 11-Partition wall, 2-Special connection structure, 21-Side wall, 3-Subsea utility tunnel, 31-Type I connector, 32-Type II connector. Detailed Implementation

[0044] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for illustration and explanation only and are not intended to limit the invention. It should be noted that many specific details are set forth in the following description to provide a thorough understanding of the invention; however, the invention may have other embodiments and modifications thereof. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0045] Example 1: A data center cluster with a barrel foundation, including a barrel foundation structure cluster, a submarine utility tunnel cluster, a dedicated connection structure 2, and a trestle.

[0046] The cluster of barrel foundation structures includes multiple barrel foundation structures 1. Each barrel foundation structure 1 is a large-diameter concrete cylinder, and its interior is divided into compartments by partition walls 11. Each barrel foundation structure connects to multiple submarine utility tunnels 3.

[0047] The submarine utility tunnel cluster includes multiple submarine utility tunnels 3. Each submarine utility tunnel 3 is equipped with multiple first-type connectors 31 to connect with other submarine utility tunnels 3. The submarine utility tunnel 3 connected to the barrel foundation structure 1 is equipped with second-type connectors 32 at the connection point.

[0048] A dedicated connecting structure 2 serves as an intermediate structure to connect the subsea utility tunnel 3 to the barrel foundation structure 1. The cross-sectional dimensions of the dedicated connecting structure 2 are consistent with those of the subsea utility tunnel 3 to ensure the required docking error. The side wall 21 of the dedicated connecting structure 2 and the partition wall 11 of the barrel foundation structure 1 are located on the same plane to ensure reasonable force transmission. A reinforcing structure is arranged between the dedicated connecting structure 2 and the outer wall of the barrel foundation structure 1. The dedicated connecting structure 2 uses GINA and OMEGA waterstops and has built-in OMEGA waterstop installation components to achieve the installation and connection of the second waterstop. The dedicated connecting structure 2 has built-in prestressed cable anchor plates to apply prestress to the connection between the dedicated connecting structure 2 and the subsea utility tunnel 3, thereby increasing the pressure of the waterstop and stopping water.

[0049] The trestle bridge, with one end set on top of the barrel foundation structure and the other end set on the shore, is used to connect the barrel foundation structure 1 and the shore. It adopts either a one-way road + vehicle U-turn area or a two-way road for traffic. It enables people, vehicles and equipment to reach the top surface of the barrel foundation structure 1 from the shore via the trestle bridge. The overall structural type of the trestle bridge adopts a combination of pile foundation + superstructure. The superstructure adopts either a combination of pile cap + crossbeam and longitudinal beam or cap beam + prestressed longitudinal beam.

[0050] In this embodiment, the compartmentalized layout of the barrel-type foundation structure 1 includes a working shaft, an elevator shaft, a safety ladder shaft, and a ballast shaft. Multiple dedicated connecting structures are symmetrically arranged at the bottom of the barrel-type foundation structure 1. This symmetrical arrangement allows for synchronous docking construction of the subsea utility tunnel 3, which is beneficial to the overall stability of the barrel-type foundation structure 1. The symmetrical dedicated connecting structures 2 have symmetrically arranged end steel shells and anchor plates, with symmetrical holes between the anchor plates. After the symmetrical dedicated connecting structures 2 dock with the subsea utility tunnel 3, prestress is applied through the symmetrical anchor plates to maintain the pressure of the waterstop and achieve water stoppage. Simultaneously, the prestress helps provide overall cluster connection integrity, promotes overall settlement, and avoids localized settlement.

[0051] Example 2: A design method for a bucket-based data center cluster, comprising the following steps:

[0052] S101. Structural deformation stability calculation of the trestle under human and vehicle load conditions;

[0053] S102. Stress and deformation stability calculation of barrel foundation structure cluster under marine environment and seismic action, and the planning of internal space size should take into account the transfer of people, vehicles and maintenance equipment.

[0054] S103. Stress and deformation stability calculation of submarine utility tunnel clusters under marine environment and seismic action;

[0055] S104, Design of internal vehicle passages, pipeline passages, ventilation, lighting functions, and ladder structures for personnel to move up and down in the barrel foundation structure cluster and the submarine utility tunnel cluster.

[0056] S105. Calculate the reinforcement amount of poor foundation for different submarine utility tunnel cluster layout schemes, use it as a parameter for scheme optimization, and determine the optimal submarine utility tunnel cluster layout scheme.

[0057] S106 Settlement optimization analysis and further optimization layout of barrel foundation structure cluster and submarine pipe gallery cluster.

[0058] In this embodiment, the reinforcement amount in step S105 is obtained through the following steps:

[0059] 1) Calculate the standard deviation parameter for each soil layer. When the standard deviation is greater than the threshold σ, T At that time, the standard deviation was used as input to evaluate the cost of foundation reinforcement;

[0060] 2) When using crushed stone foundation treatment, determine the total scope of crushed stone foundation treatment and reinforcement volume based on the width and depth of foundation reinforcement;

[0061] 3) When using mixing piles for reinforcement, determine the spacing, depth, and diameter parameters of the mixing piles, and determine the total amount of mixing pile reinforcement.

[0062] In this embodiment, the subsea utility tunnel cluster settlement optimization analysis in step S106 includes the following steps:

[0063] 1) Based on the layout of the submarine utility tunnel cluster and the distribution of the connection between the barrel foundation structure and multiple submarine utility tunnels, determine the sub-clusters of the data center cluster.

[0064] 2) Based on the preset cross-sectional parameters of the barrel foundation structure and the submarine pipe gallery structure, calculate the self-weight and ballast parameters of the barrel foundation structure and the submarine pipe gallery structure.

[0065] 3) Calculate the average foundation load of the submarine utility tunnel foundation and the average foundation load of the barrel foundation structure, using the load as the input parameter.

[0066] 4) The calculated settlement of the subsea utility tunnel and the barrel foundation structure is used as input, and the initial iterative settlement of the subsea utility tunnel and the barrel foundation structure is set to 0.

[0067] 5) Based on the structure of each sub-cluster, establish a numerical model for settlement calculation according to the submarine pipe gallery and barrel foundation structure;

[0068] 6) Establish a settlement calculation model for multi-layered soil, calculate the settlement at different locations of the submarine pipe gallery and the barrel foundation structure, and calculate the final settlement of the sub-cluster structure.

[0069] 7) Calculate the settlement of the sub-cluster structure submarine pipe gallery and the barrel foundation structure. When the difference between the two settlements meets the preset parameters, terminate the iteration; if the requirements are not met, adjust the overall size parameters of the barrel foundation and the bottom foundation, and repeat steps 3) to 7).

[0070] 8) Determine the overall dimensions of the sub-cluster structure submarine utility tunnel and barrel foundation structure;

[0071] 9) Based on the optimized parameters and deformation of each sub-cluster structure, the differences in settlement and displacement deformation between sub-clusters are analyzed; the optimization objective is to reduce the differential settlement between adjacent sub-clusters.

[0072] 10) Calculate the overall differential settlement standard deviation. If the standard deviation does not meet the preset requirements, adjust the sub-cluster division based on the subsea tunnel settlement data at different locations of each sub-cluster and redetermine the sub-cluster system scope; restart the iterative analysis from step 1); terminate when the requirements are met.

[0073] Example 3: A method for constructing a bucket-based data center cluster, applied to the structural design process of the bucket-based data center cluster in Example 1, specifically includes the following steps:

[0074] S201. Offshore construction of trestle pile foundations, pile caps, crossbeams, longitudinal beams, and prestressed beams;

[0075] S202, Construction of the lower foundation of the barrel foundation structure and the submarine pipe gallery;

[0076] S203. Construction of the barrel foundation structure: The barrel foundation structure is transported by floating on water using tugboats to the installation position, and the ballast well is filled with water to sink it. After sinking to the designated position, the boulders and torsion blocks are installed to prevent disturbance.

[0077] S204. The installation of the submarine utility tunnel in the sea is carried out by barge sinking method. While the submarine utility tunnel is floating in the sea, two barges are arranged at both ends. The barges are moored at four points in the sea, and two winches are arranged at each point to realize the sinking of the submarine utility tunnel into the foundation bed by water injection in the sea.

[0078] S205. For the connection construction between the subsea utility tunnel and the barrel foundation structure, winches are installed on top of the dedicated connection structure of the barrel foundation structure, and four cable-spinning bollards are placed at the four corners of the joint section. The two subsea utility tunnels are installed symmetrically and simultaneously, and are sunk to the predetermined positions using a barge. The four winch cables of each dedicated connection structure are connected to the mooring points at the four corners of the second type of connector end of the subsea utility tunnel, pulling the subsea utility tunnel towards the docking end on the foundation surface, pressing the waterstop onto the end face of the dedicated connection structure of the barrel foundation structure, and achieving initial waterstopping. The process involves: pumping water out of the barrel foundation structure and using a barge for continuous shearing to preload the structure; sequentially removing one end face of the barrel foundation structure and one end face of the subsea utility tunnel from the dedicated connection structure within the barrel foundation structure; installing OMEGA waterstops using embedded parts; connecting the two anchor plates of the two subsea utility tunnels with prestressed steel cables and tensioning the prestress to compress the GINA waterstops to a predetermined amount; and installing shear keys for the dedicated connection structure between the subsea utility tunnel and the barrel foundation structure to ensure the overall shear resistance of the subsea utility tunnel and the barrel foundation structure.

[0079] S206. For the connection construction between submarine utility tunnels, a specialized floating barge is used, equipped with winches. Four cable-spinning bollards are placed at the four corners of the first-type connector section of each submarine utility tunnel, for a total of eight sets. The two submarine utility tunnels are installed symmetrically and simultaneously, using a barge to sink them to the predetermined positions. The four winch cables of each submarine utility tunnel's first-type connector are connected to the mooring points at the four corners of the side of the first-type connector end of the main submarine utility tunnel on the axis of symmetry. This pulls the two symmetrical submarine utility tunnels towards the docking end on the bed surface, pressing the waterstop onto the... Initial watertightness is achieved on the end face of the dedicated connection structure of the main subsea utility tunnel; water is pumped out from the docking end of the main subsea utility tunnel and continuously moved by a dedicated floating barge to achieve preload; the two end faces of the dedicated connection structure are sequentially removed inside the connected main subsea utility tunnel; OMEGA waterstops are installed through embedded parts; the two anchor plates of the two subsea utility tunnels are connected by prestressed steel cables and prestressed to compress the GINA waterstops to the preset amount; shear keys of the dedicated connection structure of the subsea utility tunnel are installed to ensure the overall shear resistance of the subsea utility tunnel cluster.

[0080] S207. Install the external protective structure for the connection, using a combination of steel shell and geotextile materials to provide external protection for the connection.

[0081] In summary, this invention achieves efficient connection between data center clusters and shore-based resources, effectively controls overall settlement, and ensures that differential settlement between sub-clusters is minimized.

[0082] It should be understood that the above embodiments are one or more embodiments of the present invention, and there are many other embodiments and variations based on the present invention; any variations and modifications made by those skilled in the art through the present invention without making pioneering innovations are all within the protection scope of the present invention.

Claims

1. A design method for a bucket-based data center cluster, characterized in that: The data center cluster structure based on a barrel foundation includes a barrel foundation structure cluster, a subsea utility tunnel cluster, a dedicated connection structure, and a trestle fixed to the shore at one end. The barrel foundation structure cluster comprises multiple barrel foundation structures, each a concrete cylinder, with internal partition walls dividing the space into compartments. The subsea utility tunnel cluster comprises multiple subsea utility tunnels, each equipped with multiple first-type connectors for connection to other subsea utility tunnels. Each subsea utility tunnel connects to the barrel foundation structure using second-type connectors. A dedicated connection structure is installed on the bottom side of the barrel foundation structure when connecting the subsea utility tunnels to the barrel foundation structure. The sidewall of the dedicated connection structure is on the same plane as the partition walls of the barrel foundation structure. The dedicated connection structure uses GINA and OMEGA waterstops, with built-in OMEGA waterstop mounting components. The other end of the trestle connects to the top of the barrel foundation structure. The design methodology specifically includes the following steps: S101. Structural deformation stability calculation of the trestle under human and vehicle load conditions; S102. Stress and deformation stability calculation of barrel foundation structure cluster under marine environment and seismic action, and the planning of internal space size should take into account the transfer of people, vehicles and maintenance equipment. S103. Stress and deformation stability calculation of submarine utility tunnel clusters under marine environment and seismic action; S104, Design of internal vehicle passages, pipeline passages, ventilation, lighting functions, and ladder structures for personnel to move up and down in the barrel foundation structure cluster and the submarine utility tunnel cluster. S105. Calculate the reinforcement amount of poor foundation for different submarine utility tunnel cluster layout schemes, use it as a parameter for scheme optimization, and determine the optimal submarine utility tunnel cluster layout scheme. In step S105, the reinforcement amount is obtained through the following steps: 1) Calculate the standard deviation parameter for each soil layer. When the standard deviation is greater than the threshold... σ T At that time, the standard deviation was used as input to evaluate the cost of foundation reinforcement; 2) When using crushed stone foundation treatment, determine the total scope of crushed stone foundation treatment and reinforcement volume based on the width and depth of foundation reinforcement; 3) When using mixing piles for reinforcement, determine the spacing, depth, and diameter parameters of the mixing piles, and determine the total amount of mixing pile reinforcement; S106 Settlement optimization analysis and further optimization layout of barrel foundation structure cluster and submarine pipe gallery cluster.

2. The design method for a bucket-based data center cluster according to claim 1, characterized in that: In step S106, the subsea utility tunnel cluster settlement optimization analysis includes the following steps: 1) Determine the sub-clusters of the data center cluster based on the layout of the submarine utility tunnel cluster and the distribution of the barrel foundation structure connected to multiple submarine utility tunnels. 2) Based on the preset parameters of the barrel foundation structure and the cross-sectional parameters of the submarine utility tunnel, calculate the self-weight and ballast parameters of the barrel foundation structure and the submarine utility tunnel. 3) Calculate the average foundation load of the submarine utility tunnel foundation and the average foundation load of the barrel foundation structure, using the load as the input parameter; 4) The calculated settlement of the subsea utility tunnel and the barrel foundation structure is used as input, and the initial iterative settlement of the subsea utility tunnel and the barrel foundation structure is set to 0. 5) Establish a numerical model for settlement calculation based on the structure of each sub-cluster and the subsea pipe gallery and barrel foundation structure; 6) Establish a settlement calculation model for multi-layered soil, calculate the settlement at different locations of the submarine pipe gallery and the barrel foundation structure, and calculate the final settlement of the sub-cluster structure. 7) Calculate the settlement of the subsea pipe gallery and the barrel foundation structure of the current sub-cluster structure. When the difference between the settlement of the two meets the preset parameters, terminate the iteration; if the requirements are not met, adjust the overall size parameters of the barrel foundation structure and the bottom foundation, and repeat steps 3) to 7). 8) Determine the overall dimensions of the sub-cluster structure submarine utility tunnel and barrel foundation structure; 9) Based on the optimized parameters and deformation of each sub-cluster structure, the differences in settlement and displacement deformation between sub-clusters are analyzed; the optimization objective is to reduce the differential settlement between adjacent sub-clusters. 10) Calculate the overall differential settlement standard deviation. If the standard deviation does not meet the preset requirements, adjust the sub-cluster division based on the subsea tunnel settlement data at different locations of each sub-cluster and redetermine the sub-cluster system scope; restart the iterative analysis from step 1); terminate when the requirements are met.

3. The design method for a bucket-based data center cluster according to claim 1, characterized in that: The construction method for a bucket-based data center cluster includes the following steps: S201. Offshore construction of trestle pile foundations, pile caps, crossbeams, longitudinal beams, and prestressed beams; S202, Construction of the lower foundation of the barrel foundation structure and the submarine pipe gallery; S203. Construction of the barrel foundation structure: The barrel foundation structure is transported by floating on water using tugboats to the installation position, and the ballast well is filled with water to sink it. After sinking to the designated position, the boulders and torsion blocks are installed to prevent disturbance. S204. The installation of the submarine utility tunnel in the sea is carried out by barge sinking method. While the submarine utility tunnel is floating in the sea, two barges are arranged at both ends. The barges are moored at four points in the sea, and two winches are arranged at each point to realize the sinking of the submarine utility tunnel into the foundation bed by water injection in the sea. S205. For the connection construction between the subsea utility tunnel and the barrel foundation structure, winches are installed on top of the dedicated connection structure of the barrel foundation structure, and four cable-spinning bollards are placed at the four corners of the joint section. The two subsea utility tunnels are installed symmetrically and simultaneously, and are sunk to the predetermined positions using a barge. The four winch cables of each dedicated connection structure are connected to the mooring points at the four corners of the second type of connector end of the subsea utility tunnel, pulling the subsea utility tunnel towards the docking end on the foundation surface, pressing the waterstop onto the end face of the dedicated connection structure of the barrel foundation structure, and achieving initial waterstopping. The process involves: pumping water out of the barrel foundation structure and using a barge for continuous shearing to preload the structure; sequentially removing one end face of the barrel foundation structure and one end face of the subsea utility tunnel from the dedicated connection structure within the barrel foundation structure; installing OMEGA waterstops using embedded parts; connecting the two anchor plates of the two subsea utility tunnels with prestressed steel cables and tensioning the prestress to compress the GINA waterstops to a predetermined amount; and installing shear keys for the dedicated connection structure between the subsea utility tunnel and the barrel foundation structure to ensure the overall shear resistance of the subsea utility tunnel and the barrel foundation structure. S206. For the connection construction between submarine utility tunnels, a specialized floating barge is used, equipped with winches. Four cable-spinning bollards are placed at the four corners of the first-type connector section of each submarine utility tunnel, for a total of eight sets. The two submarine utility tunnels are installed symmetrically and simultaneously, using a barge to sink them to the predetermined positions. The four winch cables of each submarine utility tunnel's first-type connector are connected to the mooring points at the four corners of the side of the first-type connector end of the main submarine utility tunnel on the axis of symmetry. This pulls the two symmetrical submarine utility tunnels towards the docking end on the bed surface, pressing the waterstop onto the... Initial watertightness is achieved on the end face of the dedicated connection structure of the main subsea utility tunnel; water is pumped out from the docking end of the main subsea utility tunnel and continuously moved by a dedicated floating barge to achieve preload; the two end faces of the dedicated connection structure are sequentially removed inside the connected main subsea utility tunnel; OMEGA waterstops are installed through embedded parts; the two anchor plates of the two subsea utility tunnels are connected by prestressed steel cables and prestressed to compress the GINA waterstops to the preset amount; shear keys of the dedicated connection structure of the subsea utility tunnel are installed to ensure the overall shear resistance of the subsea utility tunnel cluster. S207. Install the external protective structure for the connection, using a combination of steel shell and geotextile materials to provide external protection for the connection.

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