Design and construction method of data center for connecting subsea tunnel and subsea pipe gallery

Abstract

The invention discloses a data center design and construction method for connecting a subsea tunnel and a subsea pipe gallery, and belongs to the technical field of subsea data center construction. The subsea tunnel and the subsea pipe gallery are connected through a special connecting structure, and meanwhile, a design method and a construction method for connecting the subsea tunnel and the subsea pipe gallery for connecting the coast and the seabed are provided; according to the data center built by the method, coast and seabed personnel and materials can be transferred through connection of the subsea tunnel and the subsea pipe gallery, and the problem that connection and transfer of the subsea data center and shore-based resources are difficult is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine data center construction, and in particular to a design and construction method of a data center connecting a submarine tunnel and a submarine pipeline gallery. Background Art

[0002] Submarine data centers are an important part of the "new infrastructure". When using submarine pipeline corridor structures for construction, it is usually necessary to solve the problem of connecting the submarine data center with the shore base to enable the entry and exit of personnel, vehicles and equipment. At present, there is no construction plan that can completely solve this problem. At the same time, the project needs to cross seas of different depths. The settlement control of various structures under complex geological conditions is a major difficulty in engineering construction, and there is relatively little research on this issue.

[0003] Starting from the connection between submarine tunnel and submarine pipeline gallery, the design and construction methods of data centers are studied to solve the difficulties in connecting submarine data centers with shore-based resources. A design and construction method for data centers connecting submarine tunnel and submarine pipeline gallery is proposed. This method can effectively deal with the problem of connecting submarine data centers with shore-based resources, and has promotion and application value for the construction of submarine data centers. Summary of the invention

[0004] In order to overcome the problems existing in the above technologies, the present invention provides a design and construction method for a data center connected with a submarine tunnel and a submarine pipeline gallery, wherein the data center comprises:

[0005] Subsea tunnel; Subsea pipeline gallery; Subsea tunnel and submarine pipeline gallery connection structure; Data shelter;

[0006] The submarine tunnel includes: a structure for connecting islands, reefs and breakwaters, so that people, vehicles and equipment can reach the interior of the pipeline corridor from the shore through the submarine tunnel; the submarine tunnel road adopts one-way road + vehicle turning area and two-way road; the submarine tunnel structure adopts one of reinforced concrete structure and steel shell concrete structure;

[0007] The submarine corridor comprises: the submarine corridor is composed of a circular and square box structure, the side of the corridor is opened, and the corridor is connected to the data cabin through the opening by a flange connection; the flange connection is a mechanical method for connecting pipelines and equipment;

[0008] The subsea tunnel and subsea pipeline corridor connection structure comprises: a connection using a combination of flange connection, water stop structure, prestressed cable and anchor structure to achieve connection;

[0009] The data cube includes: the data cube shell is made of high-strength alloy material, the shell is usually spherical and cylindrical, and the server cluster, collection equipment and drainage pipelines are placed inside.

[0010] The design methods include:

[0011] The submarine tunnel will connect the islands, reefs and breakwaters with the submarine pipeline corridor, and adopt either a one-way road + vehicle U-turn area or a two-way road to ensure that the submarine tunnel meets the human and vehicle load requirements and realizes the transfer function of people, vehicles and equipment; after the lower foundation is constructed, either reinforced concrete structure or steel shell concrete structure will be used as the material structure of the submarine tunnel, and the tunnel layout will be divided into a buried section, a revetment section and an underwater section. In each section, a foundation structure that resists settlement and horizontal displacement will be used to achieve the stability of the stress and deformation of the submarine tunnel under the marine environment and earthquakes; a special connection structure will be arranged at the underwater end of the submarine tunnel to connect with the section of the submarine pipeline corridor. The design requires that the section of the special connection structure is consistent with the section of the submarine pipeline corridor, and under the condition of meeting the docking error requirements, the section of the special connection structure is larger than the diameter of the section of the submarine pipeline corridor.

[0012] Through the construction of the lower foundation of the submarine corridor and the reinforcement of the submarine corridor after being connected to the submarine tunnel, the stress and deformation stability of the overall structure of the submarine corridor under the marine environment and earthquakes can be achieved. On the basis of the stability of the overall structure, all structural design functions of the internal vehicle passage, pipeline passage, ventilation, lighting functions and the ladder design required for people to go up and down can be achieved.

[0013] After connecting the submarine tunnel and the submarine corridor, multiple data cubes are connected to the side of the submarine corridor through flange connections.

[0014] Construction methods include:

[0015] Realize the lower foundation construction of submarine tunnels and submarine pipeline corridors; realize the segmented construction of submarine tunnels; realize the underwater installation of submarine pipeline corridors; the connection construction of submarine tunnels and submarine pipeline corridors; the connection construction of submarine pipeline corridors and data cabins.

[0016] In addition, the data center also includes: the location selection of the data center; the location of the submarine tunnel selects the submarine soil layer in the area with small water depth changes as the structural connection section to the shore foundation, and the inclination angle of the tunnel along the ocean shall not be greater than 3%; the location of the corridor structure selects the geologically continuous and uniform sea area, and determines the location of the corridor structure by calculating the stratum discontinuity coefficient; the stratum discontinuity coefficient refers to the length parameter of the corridor structure as the required range, calculates the position of the bearing layer including sand, clay, and strongly weathered soil, calculates the long-term settlement assessment parameters by numerical simulation, and uses the seabed range where the long-term settlement assessment parameters meet the construction requirements as the corridor construction location.

[0017] The submarine tunnel is arranged in sections, including the buried section, the revetment section and the underwater section; the submarine tunnel arranged in sections connects the island reefs and breakwater shores with the submarine pipeline corridor, and adopts a one-way road + vehicle U-turn area and a two-way road to ensure that the submarine tunnel meets the load requirements of people, vehicles and equipment; the submarine tunnel is arranged with a slope tunnel structure; the submarine tunnel adopts an anti-settlement and horizontal displacement foundation structure to ensure that the slope tunnel does not slide down as a whole, causing a large underwater displacement of the pipeline corridor structure; the buried section and the revetment section of the submarine tunnel are arranged with anti-settlement and anti-slip foundations, and the foundation form adopts a combination of pile foundation and gravel foundation, and an anti-slip structure is arranged on the top of the pile foundation and an anti-slip structure and buried parts are arranged at the bottom of the tunnel structure to achieve anti-slip and settlement treatment; the underwater section of the submarine tunnel is arranged with an anti-settlement and anti-slip foundation, which adopts a combination of gravel foundation and pile foundation, and anchor rods and bottom protruding buckle structures are used to enhance stability and achieve anti-slip treatment in the underwater section.

[0018] Arrange a special connection structure and connection method for connection with the submarine pipeline corridor; first, arrange a special connection structure at the underwater end of the submarine tunnel, the cross-section of the special connection structure is consistent with the cross-section of the submarine pipeline corridor, and the cross-section of the special connection structure is larger than the cross-section of the submarine pipeline corridor while ensuring that the docking error requirements are met; secondly, the side wall of the special connection structure is consistent with the position of the tunnel partition wall, and a reinforcement structure is arranged between the special connection structure and the outer wall of the tunnel to ensure reasonable force transmission and stable force transmission transition; finally, the special connection structure adopts GINA waterstop and OMEGA waterstop, and has built-in OMEGA waterstop mounting parts to realize the installation and connection of the second waterstop; the special connection structure has a built-in prestressed cable anchor plate to realize the connection between the special connection structure and the submarine pipeline corridor and add prestress, so as to achieve the purpose of increasing the pressure of the waterstop and stopping water.

[0019] The design method also includes: calculating geological reinforcement assessment parameters, performing foundation reinforcement design, determining the reinforcement treatment amount of the poor foundation as a parameter for scheme optimization, and optimizing it; the geological reinforcement assessment parameters are determined by comprehensively analyzing the geological conditions to determine whether reinforcement measures are needed; the method for assessment and reinforcement is: first, calculating the standard deviation parameters of each soil layer, and when the standard deviation difference exceeds the standard deviation difference threshold of the engineering standard, the standard deviation is used as input to evaluate the cost of foundation reinforcement; secondly, determining the foundation treatment range and reinforcement amount according to the width and depth of the foundation to be reinforced, and treating the foundation by crushing stones; when performing mixing treatment, determining parameters including mixing pile spacing, depth and diameter, and determining the total mixing pile reinforcement amount; finally, determining the location of the submarine tunnel and the pipeline corridor according to the reinforcement amount of each type of foundation; generally, areas with low reinforcement amount and reinforcement cost are selected as the locations of submarine tunnels and pipeline corridors.

[0020] When considering the anti-settlement problem of submarine tunnels and submarine pipeline corridors, an anti-settlement optimization analysis method for submarine tunnels and submarine pipeline corridors is given, including: a) data collection and preliminary calculation, according to the preset submarine tunnel section, inclination and geological conditions, as well as the submarine pipeline corridor structure section and geological conditions, the self-weight and ballast parameters of the submarine tunnel foundation, the self-weight and ballast parameters of the submarine pipeline corridor structure are calculated; b) foundation load calculation, the average foundation load of the submarine tunnel and the submarine pipeline corridor is calculated, and the average foundation load and the basic parameters of the submarine tunnel and the submarine pipeline corridor are used as input parameters; the basic parameters include the self-weight, ballast and overall size parameters of the submarine tunnel and the submarine pipeline corridor; c) the use of PL AXIS software starts the iteration process, with the calculated settlement of the submarine corridor and submarine tunnel foundation parameters and the horizontal slip of the submarine tunnel as output, and the iteration begins. The initial iterative settlement and horizontal slip of the submarine corridor and submarine tunnel foundation are set to 0; e) a numerical model for settlement and horizontal displacement calculation is established according to the submarine corridor and submarine tunnel foundation parameters; f) a settlement and horizontal displacement calculation model for multi-layer soil is established according to the theoretical specifications of soil mechanics and geotechnical engineering, and the settlement and horizontal displacement of different positions of the submarine tunnel and corridor structure are calculated respectively, and the final settlement of the tunnel and corridor is calculated; g) the settlement and horizontal displacement of the submarine corridor structure and submarine tunnel foundation are calculated with the current calculation. When the difference in settlement and horizontal displacement between the two meets the preset threshold parameters, the iteration is terminated; if the requirements are not met, the submarine tunnel and submarine corridor foundation parameters are adjusted, and c) iteration is repeated; h) the overall size of the submarine corridor and submarine tunnel foundation is finally determined.

[0021] The construction method comprises: S100, realizing the lower foundation construction of the submarine tunnel and the submarine pipeline gallery, comprising: respectively carrying out corresponding excavation and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for each section of the submarine tunnel; carrying out excavation and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for the submarine pipeline gallery; the said S200, realizing the segmented construction of the submarine tunnel, comprising: S201, excavating the buried section of the submarine tunnel by open excavation on the road, and then carrying out foundation construction and buried section structure construction; S202, carrying out underwater cofferdam construction for the revetment section of the submarine tunnel, and then carrying out docking construction of the buried section and the revetment section; after the docking is completed, backfilling is carried out, and finally water is poured and the cofferdam is removed; S203, the buried section and the revetment section foundation are connected. Before the foundation construction, pile foundation or anchor rod construction is carried out for each section, and the anti-slip structure construction is carried out on the top of the pile foundation, followed by the anti-slip buried structure construction of the tunnel structure, and finally the overall construction of the tunnel structure is carried out; S204, before the underwater section construction, pile foundation construction and gravel foundation construction are carried out, followed by underwater pouring of the anti-slip structure on the top of the pile foundation; S205, the underwater section of the submarine tunnel adopts the method of floating the installation ship and the tunnel structure as a whole on the water, and is transported to the installation position by a tugboat, and the ballast well is filled with water to sink, and after sinking to the designated position, the anti-disturbance structure including block stones and torsion blocks is installed; the said S300, realizing the underwater installation of the submarine corridor includes: adopting the barge sinking method for installation, and arranging at both ends of the submarine corridor when the submarine corridor floats in the sea. Two barges are moored at four points in the sea, and two winches are arranged on each barge to realize the subsea corridor being injected with water and sunk to the base bed; the connection construction of the subsea tunnel and the subsea corridor in S400 includes: S401, using the barge to move the subsea corridor on the base bed surface, and pressing the waterstop belt on the end face of the special connection structure of the subsea tunnel to achieve preliminary water stopping; S402, pumping water from the subsea tunnel docking cavity, and using the barge to continuously move the waterstop belt on the end face of the subsea corridor to contact the docking end of the subsea tunnel, and using the barge to continuously move and apply a preset preload, the preset preload is jointly determined by the design pressure, water pressure, construction conditions and safety factor; S403, pumping water from the cavity at the docking end, using water The pressure further compresses the waterstop; S404, after the pumping and compaction is completed, the four anchor points including the shore control winch and the ship winch are used to connect the end face of the submarine corridor, and the preset pressure is continuously applied, and the equipment including the shore control winch and the ship winch are fixed to keep the pressure unchanged and fix the submarine corridor; S405, the end face of the special connection structure and the end face of the submarine corridor are removed in the submarine tunnel, and the OMEGA waterstop is installed through the embedded parts; S406, the prestressed steel cable connection and installation of the submarine corridor and the submarine tunnel special connection structure are carried out, and the prestress is tensioned to compress the GINA waterstop to the preset amount; S407, the shear keys of the submarine corridor and the special connection structure are installed to ensure the overall shear resistance of the connection between the submarine corridor and the submarine tunnel;The connection construction of the submarine corridor and the data cabin in S500 includes: S501, docking the submarine corridor and the data cabin using a floating docking method, and using welding and bolting methods to ensure the sealing and stability of the interface; S502, sealing the connection parts to prevent the infiltration of moisture, soil and other foreign substances; S503, transporting the cabin equipment including server clusters, ladders and monitoring equipment from the entrance of the coastal tunnel, and completing the installation of the cabin equipment. ;

[0022] The beneficial effects of the present invention are:

[0023] The present invention provides a method for designing and constructing a data center connected with a submarine tunnel and a submarine pipeline gallery, and the method has the following advantages: the present invention provides a method for connecting a submarine tunnel and a submarine pipeline gallery, and provides a method for designing and constructing a data center based on the connection between the submarine tunnel and the submarine pipeline gallery; the data center constructed by the method can easily transfer personnel and materials through the connection between the submarine tunnel and the submarine pipeline gallery, thus solving the problem of connecting the submarine data center with shore-based resources; after the pipeline gallery cabins are connected, equipment such as a server cluster is transported from the shore channel of the submarine tunnel to the submarine pipeline gallery, and the equipment is installed, which is safer than installing the equipment in the cabins in advance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the data center composition of the present invention.

[0025] Figure 2 It is a flow chart of the design method of the present invention.

[0026] Figure 3 It is a flow chart of the construction method of the present invention. DETAILED DESCRIPTION

[0027] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given here are only used to illustrate and explain the present invention, and cannot be used to limit the present invention.

[0028] like Figure 1 As shown, it is a schematic diagram of the composition of the data center of the present invention; the schematic diagram includes: a submarine tunnel S1; a submarine corridor S2; a connection structure S3 between the submarine tunnel and the submarine corridor; and a data cabin S4.

[0029] The submarine tunnel S1 is used to connect the islands and reefs and the breakwater foundation, so that people, vehicles and equipment can reach the interior of the pipeline corridor structure from the shore through the submarine tunnel; the submarine tunnel road adopts either a one-way road + vehicle U-turn area or a two-way road; the submarine tunnel structure adopts either a reinforced concrete structure or a steel shell concrete structure.

[0030] The submarine corridor S2 is composed of a circular and square box-type structure. Holes are opened on the side of the corridor, and the corridor is connected to the data cabin through the openings using flange connections. The flange connection is a mechanical method for connecting pipelines and equipment.

[0031] The connection structure S3 between the submarine tunnel and the submarine pipeline gallery is achieved by combining flange connection, water stop structure, prestressed cable and anchoring structure.

[0032] Data Cube S4: The outer shell of the data cube is made of high-strength alloy material. The outer shell is usually spherical and cylindrical, and contains server clusters, collection equipment and drainage pipes.

[0033] Specifically, the data center also includes the location selection of the data center; the location of the submarine tunnel selects the submarine soil layer in an area with small water depth changes as the structural connection section to the shore foundation, and the inclination angle of the tunnel along the ocean shall not be greater than 3%; the location of the corridor structure selects a geologically continuous and uniform sea area, and the location of the corridor structure is determined by calculating the stratum discontinuity coefficient; the stratum discontinuity coefficient refers to using the length parameter of the corridor structure as the required range, calculating the position of the bearing layer including sand, clay, and strongly weathered soil, calculating the long-term settlement assessment parameters through numerical simulation, and taking the seabed range where the long-term settlement assessment parameters meet the construction requirements as the corridor construction location.

[0034] It should be pointed out that the size of the inclination angle of the submarine tunnel along the ocean is directly related to the structural shape of the submarine tunnel; if the structural shape of the submarine tunnel is linear, the inclination angle of the ocean tunnel can be appropriately increased due to the use of a basic structure that resists settlement and horizontal displacement, but it shall not exceed 10%; if the ocean tunnel is not linear, the ocean tunnel shall be arranged in a semicircular shape, and the two ends of the semicircular submarine tunnel belong to the shore-based interface. A special connecting structure is set near the center of the semicircular tunnel to connect with the submarine pipeline corridor. Since the semicircular submarine tunnel is more likely to overturn downward along the ocean, the overall inclination angle of the semicircular submarine tunnel along the ocean shall not exceed 3% to ensure the stability of the submarine tunnel.

[0035] The submarine tunnel is arranged in sections, including the buried section, the revetment section and the underwater section; the submarine tunnel arranged in sections connects the island reefs and breakwater shores with the submarine pipeline corridor, and adopts a one-way road + vehicle U-turn area and a two-way road to ensure that the submarine tunnel meets the load requirements of people, vehicles and equipment; the submarine tunnel is arranged with a slope tunnel structure; the submarine tunnel adopts an anti-settlement and horizontal displacement foundation structure to ensure that the slope tunnel does not slide down as a whole, causing a large underwater displacement of the pipeline corridor structure; the buried section and the revetment section of the submarine tunnel are arranged with anti-settlement and anti-slip foundations, and the foundation form adopts a combination of pile foundation and gravel foundation, and an anti-slip structure is arranged on the top of the pile foundation and an anti-slip structure and buried parts are arranged at the bottom of the tunnel structure to achieve anti-slip and settlement treatment; the underwater section of the submarine tunnel is arranged with an anti-settlement and anti-slip foundation, which adopts a combination of gravel foundation and pile foundation, and anchor rods and bottom protruding buckle structures are used to enhance stability and achieve anti-slip treatment in the underwater section.

[0036] Arrange a special connection structure and connection method for connection with the submarine pipeline corridor; first, arrange a special connection structure at the underwater end of the submarine tunnel, the cross-section of the special connection structure is consistent with the cross-section of the submarine pipeline corridor, and the cross-section of the special connection structure is larger than the cross-section of the submarine pipeline corridor while ensuring that the docking error requirements are met; secondly, the side wall of the special connection structure is consistent with the position of the tunnel partition wall, and a reinforcement structure is arranged between the special connection structure and the outer wall of the tunnel to ensure reasonable force transmission and stable force transmission transition; finally, the special connection structure adopts GINA waterstop and OMEGA waterstop, and has built-in OMEGA waterstop mounting parts to realize the installation and connection of the second waterstop; the special connection structure has a built-in prestressed cable anchor plate to realize the connection between the special connection structure and the submarine pipeline corridor and add prestress, so as to achieve the purpose of increasing the pressure of the waterstop and stopping water.

[0037] like Figure 2 As shown, it is a flow chart of the design method of the present invention; the flow chart includes: S10, the submarine tunnel connects the island reef and the breakwater shore with the submarine pipeline gallery, and adopts any road mode of one-way road + vehicle U-turn area and two-way road to realize the submarine tunnel to meet the load requirements of people and vehicles, and realize the transfer function of people, vehicles and equipment; after the lower foundation is constructed, any one of reinforced concrete structure and steel shell concrete structure is adopted as the material structure of the submarine tunnel, and the tunnel layout is divided into a buried section, a revetment section and an underwater section, and a foundation structure that resists settlement and horizontal displacement is used in each section to realize the stability of the force and deformation of the submarine tunnel under the marine environment and earthquake; a special connection structure is arranged at the underwater end of the submarine tunnel to connect with the section of the submarine pipeline gallery, and the design requires that the section of the special connection structure is consistent with the section of the submarine pipeline gallery, and under the condition of meeting the docking error requirements, the section of the special connection structure is larger than the diameter of the section of the submarine pipeline gallery;

[0038] S20. Through the construction of the lower foundation of the submarine corridor and the reinforcement of the submarine corridor after being connected to the submarine tunnel, the overall structure of the submarine corridor is stable in stress and deformation under the marine environment and earthquake, and all structural design functions of the internal vehicle channel, pipeline channel, ventilation, lighting functions and ladder design required for people to go up and down are achieved on the basis of overall structural stability; S30. After connecting the submarine tunnel and the submarine corridor, multiple data cabins are connected to the side of the submarine corridor by flange connection.

[0039] PLAXIS software is used to calculate the marine geological reinforcement assessment parameters, conduct foundation reinforcement design, determine the reinforcement treatment amount of the poor foundation, and optimize it as a parameter for scheme optimization; the geological reinforcement assessment parameters are determined by comprehensively analyzing the geological conditions to determine whether reinforcement measures are needed; the method for assessment and reinforcement is as follows: first, the standard deviation parameters of each soil layer are calculated. When the standard deviation difference exceeds the standard deviation difference threshold of the engineering standard, the standard deviation is used as input to evaluate the cost of foundation reinforcement; secondly, the foundation treatment range and reinforcement amount are determined according to the width and depth of the foundation to be reinforced, and the foundation is treated by crushing stones; when mixing treatment is performed, the parameters including the spacing, depth and diameter of the mixing piles are determined, and the total mixing pile reinforcement amount is determined; finally, the location of the submarine tunnel and the pipeline corridor is determined according to the reinforcement amount of each type of foundation; generally, areas with low reinforcement amount and reinforcement cost are selected as the location of the submarine tunnel and the pipeline corridor.

[0040] When considering the anti-settlement problem of submarine tunnels and submarine pipeline corridors, an anti-settlement optimization analysis method for submarine tunnels and submarine pipeline corridors is given, including: a) data collection and preliminary calculation, according to the preset submarine tunnel section, inclination and geological conditions, as well as the submarine pipeline corridor structure section and geological conditions, the self-weight and ballast parameters of the submarine tunnel foundation, the self-weight and ballast parameters of the submarine pipeline corridor structure are calculated; b) foundation load calculation, the average foundation load of the submarine tunnel and the submarine pipeline corridor is calculated, and the average foundation load and the basic parameters of the submarine tunnel and the submarine pipeline corridor are used as input parameters; the basic parameters include the self-weight, ballast and overall size parameters of the submarine tunnel and the submarine pipeline corridor; c) the use of PL AXIS software starts the iteration process, with the calculated settlement of the submarine corridor and submarine tunnel foundation parameters and the horizontal slip of the submarine tunnel as output, and the iteration begins. The initial iterative settlement and horizontal slip of the submarine corridor and submarine tunnel foundation are set to 0; e) a numerical model for settlement and horizontal displacement calculation is established according to the submarine corridor and submarine tunnel foundation parameters; f) a settlement and horizontal displacement calculation model for multi-layer soil is established according to the theoretical specifications of soil mechanics and geotechnical engineering, and the settlement and horizontal displacement of different positions of the submarine tunnel and corridor structure are calculated respectively, and the final settlement of the tunnel and corridor is calculated; g) the settlement and horizontal displacement of the submarine corridor structure and submarine tunnel foundation are calculated with the current calculation. When the difference in settlement and horizontal displacement between the two meets the preset threshold parameters, the iteration is terminated; if the requirements are not met, the submarine tunnel and submarine corridor foundation parameters are adjusted, and c) iteration is repeated; h) the overall size of the submarine corridor and submarine tunnel foundation is finally determined.

[0041] like Figure 3 As shown, it is a flow chart of the construction method of the present invention; the flow chart includes: S100, realizing the lower foundation construction of the submarine tunnel and the submarine corridor; S200, realizing the segmented construction of the submarine tunnel; S300, realizing the underwater installation of the submarine corridor; S400, the connection construction of the submarine tunnel and the submarine corridor; S500, the connection construction of the submarine corridor and the data cabin.

[0042] Among them, S100, the realization of the lower foundation construction of the submarine tunnel and the submarine pipeline gallery includes: carrying out corresponding excavation and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for each section of the submarine tunnel; and excavating and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for the submarine pipeline gallery.

[0043] S200. The segmented construction of the submarine tunnel includes: S201. The buried section of the submarine tunnel is excavated by open excavation on the road, and then the foundation construction and the buried section structure construction are carried out; S202. The underwater cofferdam is constructed for the revetment section of the submarine tunnel, and then the buried section and the revetment section are connected; after the connection is completed, backfill is carried out, and finally water is poured and the cofferdam is removed; S203. Before the foundation construction of the buried section and the revetment section, pile foundation or anchor rod construction of each section is carried out, and anti-slip structure construction is carried out on the top of the pile foundation, and then the anti-slip buried structure construction of the tunnel structure is carried out, and finally the tunnel structure is constructed as a whole; S204. Before the construction of the underwater section, pile foundation construction and crushed stone foundation construction are carried out, and then the anti-slip structure on the top of the pile foundation is cast underwater; S205. The underwater section of the submarine tunnel adopts the method of floating the installation ship and the tunnel structure as a whole on the water, and is transported to the installation position by a tugboat, and the ballast well is filled with water to sink. After sinking to the designated position, the anti-disturbance structure including block stones and torsion blocks is installed.

[0044] S300. The underwater installation of the submarine pipeline corridor includes: using the barge sinking method for installation. When the submarine pipeline corridor floats in the sea, two barges are arranged at both ends. The barges are moored at 4 points in the sea, and two winches are arranged on each barge to realize the underwater pipeline corridor being filled with water and sunk to the base bed in the sea.

[0045] S400, the connection construction between the submarine tunnel and the submarine pipeline gallery includes: S401, using a barge to move the submarine pipeline gallery on the surface of the base bed, and pressing the waterstop belt on the end face of the special connection structure of the submarine tunnel to achieve preliminary water stopping; S402, pumping water from the submarine tunnel docking cavity, and using the barge to continuously move to achieve the contact between the submarine pipeline gallery end face waterstop belt and the submarine tunnel docking end, using the barge to continuously move and apply a preset preload, the preset preload is determined by the design pressure, water pressure, construction conditions and safety factor; S403, pumping water from the cavity of the docking end, and using the water pressure to further compact the waterstop belt; S404, pumping and compacting is completed Finally, use the four anchor points including the shore control winch and the shipboard winch to connect the end face of the submarine corridor, continuously apply the preset pressure, fix the equipment including the shore control winch and the shipboard winch, keep the pressure constant, and fix the submarine corridor; S405, remove the end face of the special connection structure and the end face of the submarine corridor in the submarine tunnel, and install the OMEGA waterstop through the embedded parts; S406, connect and install the prestressed steel cable of the submarine corridor and the submarine tunnel special connection structure, and tension the prestress to compress the GINA waterstop to the preset amount; S407, install the shear keys of the submarine corridor and the special connection structure to ensure the overall shear resistance of the connection between the submarine corridor and the submarine tunnel.

[0046] S500. The connection construction between the submarine corridor and the data cabin includes: S501. The submarine corridor and the data cabin are docked by the floating docking method, and the sealing and stability of the interface are ensured by welding and bolting methods; S502. The connection parts are sealed to prevent the infiltration of moisture, soil and other foreign substances; S503. The cabin equipment including server clusters, ladders and monitoring equipment are transported from the coastal tunnel entrance, and the installation of the cabin equipment is completed.

[0047] In the above embodiments, preferably, through the data center composed of the submarine tunnel, submarine pipeline gallery and data cube of the present invention, vehicles, people and related equipment can be transported to the seabed by elevator through the shore-based entrance of the submarine tunnel, and then the server cluster and the like can be transported to the data cube through the submarine pipeline gallery through the docking channel; during the operation of the data cube, the staff can enter the submarine data cube from the submarine tunnel entrance on the shore at any time to confirm that the data cube is working normally; therefore, the present invention establishes a connection from the coast to the submarine data cube through the connection of the submarine tunnel and the submarine pipeline gallery, realizes the connection between the submarine data center and the shore-based resources, and makes the equipment transportation, personnel transfer and equipment maintenance of the submarine data cube convenient.

Claims

1. A data center connected by a submarine tunnel and a submarine pipeline gallery, characterized in that: include: Subsea Tunnel S1; Submarine pipeline gallery S2; Subsea tunnel and subsea pipeline gallery connection structure S3; Data Shelf S4; The submarine tunnel S1 includes: a structure for connecting islands, reefs and breakwaters, so that people, vehicles and equipment can reach the interior of the pipeline corridor from the shore through the submarine tunnel; the submarine tunnel S1 road adopts one-way road + vehicle U-turn area and two-way road; the submarine tunnel structure adopts one of reinforced concrete structure and steel shell concrete structure; The submarine corridor S2 comprises: the submarine corridor S2 is composed of a circular and square box-type structure, the side of the corridor is opened, and the corridor is connected to the data cabin through the opening by a flange connection; the flange connection is a mechanical method for connecting pipelines and equipment; The subsea tunnel and subsea pipe gallery connection structure S3 includes: a connection using a combination of flange connection, water stop structure, prestressed cable and anchor structure; The data cube S4 includes: the data cube shell is made of high-strength alloy material, the shell is usually spherical and cylindrical, and the server cluster, collection equipment and drainage pipelines are placed inside.

2. A data center connected by a submarine tunnel and a submarine pipeline gallery according to claim 1, characterized in that: The data center also includes: location selection of the data center; wherein, the location of the submarine tunnel selects the submarine soil layer in an area with small water depth changes as the structural connection section to the shore foundation; the location of the pipeline corridor structure selects a geologically continuous and uniform sea area, and determines the location of the pipeline corridor structure by calculating the stratum discontinuity coefficient; the stratum discontinuity coefficient refers to using the length parameter of the pipeline corridor structure as the required range, calculating the position of the bearing layer including sand, clay, and strongly weathered soil, calculating the long-term settlement assessment parameters by numerical simulation, and taking the submarine range where the long-term settlement assessment parameters meet the construction requirements as the pipeline corridor construction location.

3. A data center connected by a submarine tunnel and a submarine pipeline gallery according to claim 1, characterized in that: The submarine tunnel is arranged in sections, which are divided into a buried section, a revetment section and an underwater section; the submarine tunnel arranged in sections connects the island reefs and the breakwater shore with the submarine pipeline gallery, and adopts a one-way road + vehicle U-turn area and a two-way road to achieve that the submarine tunnel meets the load requirements of people, vehicles and equipment; the submarine tunnel is arranged with a slope tunnel structure; the submarine tunnel adopts an anti-settlement and horizontal displacement foundation structure to ensure that the slope tunnel does not slide down as a whole, causing a large underwater displacement of the pipeline gallery structure; the buried section and the revetment section of the submarine tunnel are arranged with anti-settlement and anti-slip foundations, and the foundation form adopts a combination of pile foundation and gravel foundation, and an anti-slip structure is arranged on the top of the pile foundation and an anti-slip structure and buried parts are arranged at the bottom of the tunnel structure to achieve anti-slip and settlement treatment; Anti-subsidence and anti-slip foundations are arranged in the underwater section of the undersea tunnel, using a combination of gravel foundation and pile foundation. At the same time, anchor rods and bottom protruding clip structures are used to enhance stability and achieve anti-slip treatment in the underwater section.

4. A data center connected by a submarine tunnel and a submarine pipeline gallery according to claim 1, characterized in that: The submarine tunnel also includes: arranging a special connection structure and a connection method for connecting with the submarine pipeline gallery; first, arranging a special connection structure at the underwater end of the submarine tunnel, the cross-section of the special connection structure is consistent with the cross-section of the submarine pipeline gallery, and under the condition of ensuring that the docking error requirements are met, the cross-section of the special connection structure is larger than the cross-section of the submarine pipeline gallery; secondly, the side wall of the special connection structure is consistent with the position of the tunnel partition wall, and a reinforcement structure is arranged between the special connection structure and the outer wall of the tunnel to ensure reasonable force transmission and stable force transmission transition; finally, the special connection structure adopts GINA waterstop and OMEGA waterstop, and has a built-in OMEGA waterstop installation part to realize the installation and connection of the second waterstop; the special connection structure has a built-in prestressed cable anchor plate to realize the connection between the special connection structure and the submarine pipeline gallery and test prestressing, so as to achieve the purpose of increasing the pressure of the waterstop and stopping water.

5. The design method of a data center connected with a submarine tunnel and a submarine pipeline gallery according to claim 1 is characterized in that: The design method comprises: S10. The submarine tunnel will connect the islands and reefs and the breakwater shore with the submarine pipeline corridor, and adopt either a one-way road + vehicle U-turn area or a two-way road to ensure that the submarine tunnel meets the load requirements of people and vehicles and realizes the transfer function of people, vehicles and equipment; after the lower foundation is constructed, either reinforced concrete structure or steel shell concrete structure will be used as the material structure of the submarine tunnel, and the tunnel layout will be divided into a buried section, a revetment section and an underwater section. In each section, a foundation structure that resists settlement and horizontal displacement will be used to achieve the stability of the force and deformation of the submarine tunnel under the marine environment and earthquakes; a special connection structure will be arranged at the underwater end of the submarine tunnel to connect with the section of the submarine pipeline corridor. The design requires that the section of the special connection structure is consistent with the section of the submarine pipeline corridor, and the section of the special connection structure is larger than the diameter of the section of the submarine pipeline corridor when the docking error requirements are met; S20. Through the construction of the lower foundation of the submarine corridor and the reinforcement of the submarine corridor after it is connected to the submarine tunnel, the overall structure of the submarine corridor is stabilized under the force and deformation of the marine environment and earthquakes, and all structural design functions of the internal vehicle passage, pipeline passage, ventilation, lighting and ladder design required for people to go up and down are achieved on the basis of overall structural stability; S30, after the submarine tunnel and the submarine pipeline gallery are connected, multiple data cubes are connected to the side of the submarine pipeline gallery by flange connection.

6. The design method of a data center connected with a submarine tunnel and a submarine pipeline gallery according to claim 5 is characterized in that: The design method also includes: calculating geological reinforcement assessment parameters, performing foundation reinforcement design, determining the reinforcement treatment amount of the poor foundation as a parameter for scheme optimization, and optimizing it; the geological reinforcement assessment parameters are determined by comprehensively analyzing the geological conditions to determine whether reinforcement measures are needed; the method for assessment and reinforcement is: first, calculating the standard deviation parameters of each soil layer, and when the standard deviation difference exceeds the standard deviation difference threshold of the engineering standard, the standard deviation is used as input to evaluate the cost of foundation reinforcement; secondly, determining the foundation treatment range and reinforcement amount according to the width and depth of the foundation to be reinforced, and treating the foundation by crushing stones; when performing mixing treatment, determining parameters including mixing pile spacing, depth and diameter, and determining the total mixing pile reinforcement amount; finally, determining the location of the submarine tunnel and the pipeline corridor according to the reinforcement amount of each type of foundation; generally, areas with low reinforcement amount and reinforcement cost are selected as the locations of submarine tunnels and pipeline corridors.

7. The design method of a data center connected with a submarine tunnel and a submarine pipeline gallery according to claim 5 is characterized in that: The design method also includes: considering the anti-settlement problem of the submarine tunnel and the submarine pipeline gallery, and providing an anti-settlement optimization analysis method for the integration of the submarine tunnel and the submarine pipeline gallery based on the anti-settlement problem, including: a) data collection and preliminary calculation, calculating the self-weight and ballast parameters of the submarine tunnel foundation, and the self-weight and ballast parameters of the submarine pipeline gallery structure based on the preset submarine tunnel section, inclination and geological conditions, as well as the submarine pipeline gallery structure section and geological conditions; b) basic load calculation, calculating the average basic load of the submarine tunnel and the submarine pipeline gallery, with the average basic load and basic parameters of the submarine tunnel and the submarine pipeline gallery as input parameters; the basic parameters include the self-weight, ballast and overall size parameters of the submarine tunnel and the submarine pipeline gallery; c) starting the iterative process, with the calculation of settlement of the basic parameters of the submarine pipeline gallery and the submarine tunnel, the calculation of the basic parameters of the submarine tunnel and the submarine pipeline gallery, and the calculation of the basic parameters of the submarine tunnel and the submarine pipeline gallery. The horizontal slip of the tunnel is used as the output, and the iteration starts. The initial iterative settlement and horizontal slip of the submarine corridor and submarine tunnel foundation are set to 0; e) a numerical model for settlement and horizontal displacement calculation is established according to the parameters of the submarine corridor and submarine tunnel foundation; f) a settlement and horizontal displacement calculation model for multi-layer soil is established according to the theoretical specifications of soil mechanics and geotechnical engineering, and the settlement and horizontal displacement of different positions of the submarine tunnel and corridor structure are calculated respectively, and the final settlement of the tunnel and corridor is calculated; g) the settlement and horizontal displacement of the submarine corridor structure and submarine tunnel foundation are calculated based on the current calculation. When the difference in settlement and horizontal displacement between the two meets the preset threshold parameters, the iteration is terminated; if the requirements are not met, the parameters of the submarine tunnel and submarine corridor foundation are adjusted, and c) iteration is repeated; h) the overall size of the submarine corridor and submarine tunnel foundation is finally determined.

8. The method for constructing a data center connected by a submarine tunnel and a submarine pipeline gallery according to claim 1, characterized in that: The construction method comprises: S100, realize the lower foundation construction of the submarine tunnel and submarine pipeline gallery; S200, realize the segmented construction of the submarine tunnel; S300, realize the underwater installation of the submarine pipeline gallery; S400, the connection construction of the submarine tunnel and the submarine pipeline gallery; S500, the connection construction of the submarine pipeline gallery and the data cabin.

9. The method for constructing a data center connected by a submarine tunnel and a submarine pipeline gallery according to claim 8, characterized in that: The construction method comprises: S100, realizing the lower foundation construction of the submarine tunnel and the submarine pipeline gallery, including: respectively carrying out corresponding excavation and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for each section of the submarine tunnel; carrying out excavation and piling, constructing pile foundations and caissons, pouring concrete and strengthening the foundation for the submarine pipeline gallery; the said S200, realizing the segmented construction of the submarine tunnel, including: S201, excavating the buried section of the submarine tunnel by open excavation on the road, and then carrying out foundation construction and buried section structure construction; S202, carrying out underwater cofferdam construction for the revetment section of the submarine tunnel, and then carrying out docking construction of the buried section and the revetment section; after the docking is completed, backfilling is carried out, and finally water is poured and removed In addition to the cofferdam; S203, before the foundation construction of the buried section and the revetment section, pile foundation or anchor rod construction is carried out for each section, and the anti-slip structure construction is carried out on the top of the pile foundation, followed by the anti-slip buried structure construction of the tunnel structure, and finally the overall construction of the tunnel structure; S204, before the construction of the underwater section, pile foundation construction and gravel foundation construction are carried out, followed by underwater pouring of the anti-slip structure on the top of the pile foundation; S205, the underwater section of the submarine tunnel adopts the method of floating the installation ship and the tunnel structure as a whole on the water, and is transported to the installation position by a tugboat, and the ballast well is filled with water to sink. After sinking to the designated position, the anti-disturbance structure including block stones and torsion blocks is installed; the above S300, realizing the underwater installation of the submarine corridor The method comprises: installing by the barge sinking method, when the submarine corridor floats in the sea, two barges are arranged at both ends, the barges are moored at 4 points in the sea, and two winches are arranged on each barge to realize the sinking of the submarine corridor to the base bed by water injection in the sea; the connection construction of the submarine tunnel and the submarine corridor comprises: S401, moving the submarine corridor on the base bed surface by the barge twisting, and pressing the waterstop belt on the end face of the special connection structure of the submarine tunnel to realize preliminary water stopping; S402, pumping water from the docking cavity of the submarine tunnel, and using the barge to continuously twist and move to realize that the end face waterstop belt of the submarine corridor contacts the docking end of the submarine tunnel, and using the barge to continuously twist and move and apply a preset preload, the preset preload The compressive load is jointly determined by the design pressure, water pressure, construction conditions and safety factor; S403, pump water from the cavity at the butt end, and use the water pressure to further compress the waterstop; S404, after the pumping and compaction is completed, use the four anchor points including the shore control winch and the ship winch to connect the end face of the submarine corridor, continuously apply the preset pressure, and fix the equipment including the shore control winch and the ship winch to keep the pressure constant and fix the submarine corridor; S405, remove the end face of the special connection structure and the end face of the submarine corridor in the submarine tunnel, and install the OMEGA waterstop through the embedded parts; S406, connect and install the prestressed steel cable of the submarine corridor and the submarine tunnel special connection structure, and tension the prestress to compress the GI NA waterstop to the preset amount; S407, install the shear keys of the submarine corridor and the special connection structure to ensure the overall shear resistance of the connection between the submarine corridor and the submarine tunnel;The connection construction of the submarine corridor and the data cabin in S500 includes: S501, docking the submarine corridor and the data cabin using a floating docking method, and using welding and bolting methods to ensure the sealing and stability of the interface; S502, sealing the connection parts to prevent the infiltration of moisture, soil and other foreign substances; S503, transporting the cabin equipment including server clusters, ladders and monitoring equipment from the entrance of the coastal tunnel, and completing the installation of the cabin equipment. ;

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