A marine station structure suitable for a muddy coastal zone

Abstract

The utility model discloses a kind of marine station structures suitable for silt coast zone, including multiple steel pipe bodies and fixed components, the upper end of multiple steel pipe bodies is fixed with main fixed support beam, the upper end of steel pipe body is installed with prefabricated layer that is attached on the main fixed support beam, multiple support reserved holes are equipped on the prefabricated layer, the upper end of steel pipe body is all located in the support reserved hole, steel pipe body is filled with internal filling body, connecting reinforcing steel bar is installed in the internal filling body;In the marine station structure suitable for silt coast zone, the concrete pouring of steel pipe body and cast-in-place layer is combined, instead of conventional "reinforced concrete pile" structure, ensure that lower support structure normally play a role, while the load-bearing platform structure of prefabricated layer and cast-in-place layer is combined, reduce construction difficulty, shorten construction period, improve construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of marine engineering technology, specifically to a marine station structure suitable for silty coastal zones. Background Technology

[0002] Ocean stations are typically built in nearshore waters to collect basic marine data for the area. With increasing human activity in recent years, the demand for ocean stations has grown significantly. During construction, ocean stations face threats from harsh natural environments such as waves, sea ice, red tides, tsunamis, and storm surges, making cost control and construction schedule management particularly crucial.

[0003] Existing fixed marine stations commonly use cast-in-place concrete structures to ensure their durability and stability. However, for silty coasts, the sediments are soft, have high water content, low bearing capacity, and are prone to uneven settlement. Constructing a marine station on top of these sediments requires pile foundations and deep reinforcement technology to improve the stability of the foundation, which can significantly increase construction costs and construction time. In addition, the traditional construction method of using bored piles at the bottom and fully cast-in-place superstructure generally results in a construction period of no less than 3 months, which is quite long. Therefore, it is necessary to design a marine station structure suitable for silty coastal zones to solve the above problems.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0005] The purpose of this invention is to provide a marine station structure suitable for silty coastal zones, in order to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is: a marine station structure suitable for silty coastal zones, comprising multiple steel pipe bodies and fixing components, with a main fixing support beam fixed to the upper end of the multiple steel pipe bodies, a prefabricated layer attached to the main fixing support beam installed at the upper end of the steel pipe body, multiple support reserved holes provided on the prefabricated layer, the upper ends of the steel pipe bodies all located in the support reserved holes, an internal filler body filled inside the steel pipe body, connecting steel bars installed in the internal filler body, the upper end of the connecting steel bars penetrating the steel pipe body and extending to the outside of the support reserved holes, and a ring steel mesh wrapped around the connecting steel bars at the position outside the support reserved holes;

[0007] The precast layer is fitted with a thermocline-salinity well and a tide gauge well. The thermocline-salinity well and the tide gauge well are fixed to the steel pipe body at the lower end of the precast layer by the fixing component. A cast-in-place layer is provided at the upper end of the precast layer. The connecting steel bars and the annular steel mesh are fixed in the cast-in-place layer. The upper ends of the thermocline-salinity well and the tide gauge well both extend through to the upper part of the cast-in-place layer.

[0008] Furthermore, a plurality of first fixed reinforcing bars are fixed at intervals on the precast layer, and a rectangular steel mesh is wound around the first fixed reinforcing bars. The first fixed reinforcing bars and the rectangular steel mesh are fixed within the cast-in-place layer.

[0009] Furthermore, a plurality of second fixing steel bars are fixed at intervals on the precast layer, and the second fixing steel bars are fixed within the cast-in-place layer.

[0010] Furthermore, the fixing assembly includes auxiliary fixing support beams, long box-shaped steel beams, and short box-shaped steel beams. Two auxiliary fixing support beams are respectively fixed to the steel pipe body, two long box-shaped steel beams are respectively fixed to the auxiliary fixing support beams, one end of each of the multiple short box-shaped steel beams is respectively fixed to the thermo-salinity well shaft and the tide gauge station shaft, and the other end of each short box-shaped steel beam is respectively fixedly connected to the auxiliary fixing support beams and the long box-shaped steel beams.

[0011] Furthermore, the prefabricated layer is provided with a pre-drilled hole for a thermo-salinous well, and the thermo-salinous well cylinder is sleeved inside the pre-drilled hole for the thermo-salinous well.

[0012] Furthermore, the prefabricated layer is provided with a reserved hole for a tide gauge station, and the well casing of the tide gauge station is sleeved inside the reserved hole for the tide gauge station.

[0013] Furthermore, a workhouse and a guardrail are fixed on the cast-in-place layer respectively. A lightning rod is installed on the upper end of the workhouse. The workhouse is located in the center of the guardrail. The upper ends of the thermo-salinity well and the tide gauge well are both located inside the workhouse.

[0014] Furthermore, the upper and lower ends of the steel pipe body are fixed with reinforcing hoops.

[0015] Furthermore, the internal filling body is fixed with reinforcing ribs.

[0016] Furthermore, a sealing ring is fixed at the connection between the temperature and salinity well shaft and the tide gauge well shaft and the upper part of the cast-in-place layer.

[0017] By adopting the above technical solutions, the problems of low foundation bearing capacity, easy settlement, high construction cost, and long construction period when constructing marine stations in silty coastal areas have been solved.

[0018] Compared with the prior art, the beneficial effects of this utility model are: In the marine station structure applicable to silty coastal zones, the combination of steel pipe body and cast-in-place concrete pouring replaces the conventional "reinforced concrete pile" structure, ensuring that the lower support structure can function normally. At the same time, the load-bearing platform structure combining precast and cast-in-place layers reduces construction difficulty, shortens construction period, and improves construction efficiency. Attached Figure Description

[0019] Figure 1 This is a first three-dimensional structural schematic diagram of a marine station structure suitable for silty coastal zones according to an embodiment of this application;

[0020] Figure 2 This is a second three-dimensional structural schematic diagram of a marine station structure suitable for silty coastal zones according to an embodiment of this application;

[0021] Figure 3 This is a three-dimensional structural diagram of the steel pipe body, the thermocline-salinity well shaft, and the tide gauge well shaft according to embodiments of this application;

[0022] Figure 4 This is a three-dimensional structural diagram of the prefabricated layer according to an embodiment of this application;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of the upper prefabricated element according to an embodiment of this application;

[0024] Figure 6 This is a three-dimensional structural diagram of the steel pipe body, precast layer and cast-in-place layer according to an embodiment of this application;

[0025] Figure 7 This is a cross-sectional view of the steel pipe body according to an embodiment of this application.

[0026] In the diagram: 1. Steel pipe body; 2. Reinforcing rib; 3. Internal filling; 4. Reinforcing hoop; 5. Main fixed support beam; 6. Precast layer; 7. Support reserved hole; 8. First fixed reinforcing bar; 9. Rectangular steel mesh; 10. Second fixed reinforcing bar; 11. Reserved hole for thermocline-salinity well; 12. Thermocline-salinity well shaft; 13. Reserved hole for tide gauge station; 14. Tide gauge station shaft; 15. Auxiliary fixed support beam; 16. Long box-shaped steel beam; 17. Short box-shaped steel beam; 18. Cast-in-place layer; 19. Sealing ring; 20. Workhouse; 21. Lightning rod; 22. Guardrail; 23. Connecting reinforcing bar; 24. Circular steel mesh. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] Please see Figure 1-7 This utility model provides a technical solution: a marine station structure suitable for silty coastal zones, comprising: a support structure, a shaft, a shaft fixing beam, a load-bearing platform, a workhouse 20, and an enclosure structure;

[0029] In this embodiment, the marine station is located in a silty coastal area with a multi-year average low tide level of -0.1m and a multi-year average high tide level of 0.99m. During the construction period, the high tide level is 1.76m. During construction, all construction personnel must wear safety helmets, life jackets, and other safety protective equipment. Safety warning signs are set up at the construction site to prevent unauthorized personnel from entering the construction area. Waste generated during construction should be collected separately and transported to a designated location for disposal to avoid pollution of the marine environment.

[0030] Support Structure: The support structure addresses the issue of insufficient seabed bearing capacity and ensures the stability of the superstructure. It consists of four separate steel pipe bodies 1, arranged at the four corners of a 4m × 4m square. The steel pipe bodies 1 are prefabricated structures with hot-dip galvanized surfaces, a diameter of 700mm, and are made of Q355B steel. They are straight piles, each 45m long, with a top elevation of 4.0m and a bottom elevation of -41.0m. The interior of the steel pipe bodies 1 is filled with cast-in-place C40 concrete as the internal infill material 3. To improve the performance of the internal infill material 3, reinforcing ribs 2 are fixed within it. A reinforcing hoop 4 is placed at both the top and bottom of the steel pipe bodies 1. The reinforcing hoop 4 is made of Q355B steel plate, circular in shape, 8mm thick, and 600mm high, to enhance the rigidity and torsional resistance of the pile body.

[0031] Well shafts: Based on the monitoring objectives of the marine station, two well shafts are installed: a 1000mm diameter tide gauge well shaft 14 and a 1200mm diameter thermo-salinity well shaft 12. The top elevation of the well shafts is 6.2m, 80cm higher than the top surface of the load-bearing platform, and above the multi-year average high tide level to prevent debris and personnel from falling into the wells; the bottom elevation of the well shafts is -1.8m, below the multi-year average low tide level to meet the monitoring function requirements. Additionally, the openings of the tide gauge well shaft 14 and the thermo-salinity well shaft 12 within the workhouse 20 are each equipped with threaded sealing caps to further prevent debris and personnel from falling into the wells.

[0032] Well shaft fixing beam; The well shaft fixing beam adopts the form of a box-type steel beam with dimensions of 200mm×400mm×12mm and material of Q355B. To ensure the stability of the well shaft, the well shaft fixing beam is set in two layers, with the top elevations of each layer being -0.6m and 1.9m respectively. The well shaft is welded and fixed to the steel pipe body 1 through the auxiliary fixing support beam 15, the long box-type steel beam 16 and the short box-type steel beam 17 of the fixing components. One end of the short box-type steel beam 17 is fixed to the well shaft by welding, and the other end is welded to the auxiliary fixing support beam 15 and the long box-type steel beam 16 respectively. At the same time, the tide gauge well shaft 14 and the temperature and salinity well shaft 12 are also fixed by welding the short box-type steel beam 17.

[0033] The load-bearing platform is a rectangular platform measuring 7m x 7m and 1.5m thick. Serving as the load-bearing platform for the upper workhouse 20, it must simultaneously meet requirements for rigidity, deformation, displacement, and safety. The bottom elevation of the platform is 3.9m, higher than the average high tide level over many years; the top elevation is 5.4m. The platform dimensions are slightly larger than the workhouse 20, with a 1m wide space around the perimeter for staff patrols and inspections. The load-bearing platform consists of a precast bottom layer 6 and an upper cast-in-place layer 18. The precast layer 6 is a 30cm thick precast C40 reinforced concrete structure. During precasting, holes are pre-drilled according to the location and dimensions of the well shaft, with the pre-drilled holes being 5cm larger than the well shaft dimensions to facilitate installation. The cast-in-place layer 18 is a 1.2m thick cast-in-place C40 reinforced concrete structure.

[0034] Workhouse 20; Workhouse 20 is designed to meet safety and usability requirements. It is an 8m high two-story reinforced concrete structure located in the center of the load-bearing platform, which facilitates the management and maintenance of the well shaft and monitoring equipment.

[0035] Enclosure structure; The enclosure structure is arranged on the load-bearing platform along the outer edge of the load-bearing platform, using stone railings 22 with a height of 1.2m to protect the workers entering the work room 20 and prevent safety accidents.

[0036] The construction process of the marine station structure in the silty coastal zone is as follows:

[0037] 1) Foundation testing: Before construction, a detailed test of the foundation at the target location of the marine station will be conducted. Professional testing equipment and methods will be used to determine the bearing capacity of a single pile. The bearing capacity of a single pile is required to be no less than 800KN, so as to provide a basis for subsequent structural design and construction.

[0038] 2) Measurement and Positioning: A permanent reference station is established on shore, and high-precision surveying instruments, such as a GPS surveying system, are used to set up surveying control points and establish a combined surveying control network. Through this control network, the position and elevation of each structural component can be accurately controlled during construction, ensuring construction accuracy.

[0039] 3) Construction of Support Structure: Precast steel pipe body 1 is driven into the target construction location. Following relevant technical specifications, the steel pipe body 1 is driven to a depth below the target elevation bedrock. The pile foundation testing results should meet the specifications. During pile driving, self-compacting concrete is poured, and the internal filling material 3 is filled. Simultaneously, reinforcing ribs 2 are installed within the internal filling material 3, and reinforcing hoops 4 are fixed at the upper and lower ends of the steel pipe body 1 to ensure the overall stability and safety of the marine station pile foundation. Note: A 2.5m section is left unfilled at the top of the pile foundation during concrete pouring for the connection structure between the support structure and the load-bearing platform.

[0040] 4) Fabricate the precast layer 6 at the bottom of the load-bearing platform: The size of the precast layer 6 is the same as the design size of the load-bearing platform. During the prefabrication, according to the well layout plan and the size of the steel pipe body 1, reserve the support reserved hole 7, the thermo-salt well reserved hole 11 and the tide gauge reserved hole 13. Fix the first fixed steel bar 8 and the second fixed steel bar 10 at intervals on the precast layer 6, wherein a rectangular steel mesh 9 is wrapped around the first fixed steel bar 8.

[0041] 5) Casting of the platform's cast-in-place layer 18 on the upper part of the load-bearing platform: ① Tie the connecting steel bars 23 located at the top of the steel pipe body 1 with a ring-shaped steel mesh 24. The top elevation of the ring-shaped steel mesh 24 is higher than the top of the steel pipe body 1. ② Hoisting the precast layer 6: First, weld and fix the main fixed support beam 5 at the upper end of the steel pipe body 1. Then, hoist the precast layer 6 to the target position. Then, attach the precast layer 6 to the main fixed support beam 5 and place it above the main fixed support beam 5, ensuring that the support reserved hole 7 of the precast layer 6 fits into the upper end of the steel pipe body 1. ③ Binding of the platform's main reinforcement: Bind and fix the first fixed steel bar 8 and the rectangular steel mesh 9 on the precast layer 6. ④ Concrete pouring: Using the precast layer 6 as the bottom template and the wooden board as the side template, pour C40 concrete. Reserve space in advance for the arrangement of the temperature and salinity well shaft 12 and the tide gauge well shaft 14. During pouring, the ring steel mesh 24, connecting steel bars 23, first fixed steel bar 8, rectangular steel mesh 9 and second fixed steel bar 10 are connected with the cast-in-place concrete as a whole.

[0042] 6) Well installation: Hoist the thermo-salinity well shaft 12 and the tide gauge station shaft 14 into the reserved holes 11 and 13 of the thermo-salinity well and the tide gauge station in the prefabricated layer 6 until they are completely installed in the reserved holes. Then, the well shaft is welded and fixed to the steel pipe body 1 by the auxiliary fixed support beam 15, the long box-shaped steel beam 16 and the short box-shaped steel beam 17 of the fixing component. One end of the short box-shaped steel beam 17 is fixed to the well shaft by welding, and the other end is welded to the auxiliary fixed support beam 15 and the long box-shaped steel beam 16 respectively. At the same time, the openings of the tide gauge station shaft 14 and the thermo-salinity well shaft 12 located in the workhouse 20 are also equipped with threaded sealing covers to further prevent debris and personnel from falling into the well.

[0043] 7) Construction of the superstructure and enclosure structure: Construct the workhouse 20 and guardrail 22 on the cast-in-place layer 18 according to the design plan. Install lightning rod 21 on the upper end of the workhouse 20 to ensure that the upper ends of the thermocline well 12 and the tide gauge well 14 are located inside the workhouse 20. Fix a sealing ring 19 at the connection between the well and the upper part of the cast-in-place layer 18. The sealing ring 19 is used to seal the connection between the well and the cast-in-place layer 18 and to block the connection between the hoisted thermocline well 12 and the tide gauge well 14 and the cast-in-place layer 18, thereby reducing the infiltration of water vapor into the workhouse 20.

[0044] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A marine station structure suitable for silty coastal zones, comprising multiple steel pipe bodies (1) and fixing components, characterized in that: A main fixed support beam (5) is fixed to the upper end of a plurality of steel pipe bodies (1). A prefabricated layer (6) is installed on the upper end of the steel pipe body (1) and attached to the main fixed support beam (5). A plurality of support reserved holes (7) are provided on the prefabricated layer (6). The upper end of the steel pipe body (1) is located in the support reserved hole (7). The steel pipe body (1) is filled with an internal filler (3). A connecting steel bar (23) is installed in the internal filler (3). The upper end of the connecting steel bar (23) penetrates the steel pipe body (1) and extends to the outside of the support reserved hole (7). A ring steel mesh (24) is wrapped around the connecting steel bar (23) located outside the support reserved hole (7). The precast layer (6) is fitted with a thermo-salinity well shaft (12) and a tide gauge well shaft (14). The thermo-salinity well shaft (12) and the tide gauge well shaft (14) are located at the lower end of the precast layer (6) and are fixed to the steel pipe body (1) by the fixing component. The upper end of the precast layer (6) is provided with a cast-in-place layer (18). The connecting steel bar (23) and the annular steel mesh (24) are fixed in the cast-in-place layer (18). The upper ends of the thermo-salinity well shaft (12) and the tide gauge well shaft (14) extend through to the upper part of the cast-in-place layer (18).

2. The marine station structure suitable for silty coastal zones according to claim 1, characterized in that: Multiple first fixed steel bars (8) are fixed at intervals on the precast layer (6), and a rectangular steel mesh (9) is wound around the first fixed steel bars (8). The first fixed steel bars (8) and the rectangular steel mesh (9) are fixed in the cast-in-place layer (18).

3. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: Multiple second fixed steel bars (10) are fixed at intervals on the precast layer (6), and the second fixed steel bars (10) are fixed inside the cast-in-place layer (18).

4. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: The fixing components include auxiliary fixing support beams (15), long box-shaped steel beams (16) and short box-shaped steel beams (17). Two auxiliary fixing support beams (15) are fixed to the steel pipe body (1) respectively. Two long box-shaped steel beams (16) are fixed to the auxiliary fixing support beams (15) respectively. One end of multiple short box-shaped steel beams (17) is fixed to the thermo-salinity well shaft (12) and the tide gauge well shaft (14) respectively. The other end of the short box-shaped steel beams (17) is fixedly connected to the auxiliary fixing support beams (15) and the long box-shaped steel beams (16) respectively.

5. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that, The prefabricated layer (6) is provided with a pre-reserved hole (11) for a thermosalinous well, and the thermosalinous well cylinder (12) is fitted inside the pre-reserved hole (11).

6. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: The prefabricated layer (6) is provided with a reserved hole (13) for a tide gauge station, and the well shaft (14) of the tide gauge station is fitted inside the reserved hole (13).

7. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: A workhouse (20) and a guardrail (22) are fixed on the cast-in-place layer (18). A lightning rod (21) is installed on the upper end of the workhouse (20). The workhouse (20) is located in the center of the guardrail (22). The upper ends of the thermo-salinity well shaft (12) and the tide gauge well shaft (14) are both located inside the workhouse (20).

8. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: The upper and lower ends of the steel pipe body (1) are fixed with reinforcing hoop rings (4).

9. A marine station structure suitable for silty coastal zones according to claim 1, characterized in that: The internal filler (3) is fixed with reinforcing ribs (2).

10. A marine station structure suitable for silty coastal zones according to claim 1, wherein a sealing ring (19) is fixed at the connection between the thermo-salinity well shaft (12) and the tide gauge well shaft (14) and the upper part of the cast-in-place layer (18).

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