A fully prefabricated cup foundation for deep - sea islands and reefs and its construction method

Abstract

The present invention provides a fully prefabricated cup foundation for deep - sea islands and reefs and a construction method thereof. The fully prefabricated cup foundation includes: a foundation base configured in a preset foundation pit on the deep - sea islands and reefs, fixedly connected to the foundation pit, and an installation groove is preset inside the foundation base; a steel column connector with a fixing structure provided at the bottom end, the fixing structure is arranged in the installation groove, and the fixing structure has a first state and a second state. In the first state, the fixing structure is arranged in the installation groove, and in the second state, the fixing structure matches the contour of the installation groove and is clamped to connect and fix the steel column connector to the foundation base; a fixing layer is arranged between the foundation pit and the foundation base, and between the foundation base and the steel column connector. The present invention is used for deep - sea islands and reefs, greatly reducing the problems of inconvenient concrete transportation and inconvenient construction in the special environment of the islands, and simplifying the installation process through a special fixing method, ensuring the connection strength between the foundation and the foundation pit, and between the steel column and the foundation, and realizing rapid assembly.

Description

Technical Field

[0001] The present invention relates to the field of fully prefabricated structures for deep - sea islands and reefs, and particularly to a fully prefabricated cup - shaped foundation for deep - sea islands and reefs and a construction method thereof. Background Art

[0002] Deep - sea islands and reefs are islands and reefs protruding from the sea basin. Some deep - sea islands and reefs may only emerge a little above the sea surface, and some are even submerged below the sea surface. Although the sea area of the islands and reefs is small, the natural ecology there is very prosperous. If the barren sea basin is compared to a desert, then the sea area of the islands and reefs is an oasis. Many disciplines such as marine dynamics, marine meteorology, and marine geology in the sea area of the islands and reefs are closely intertwined and influence each other.

[0003] In order to study the natural ecology on deep - sea islands and reefs, it is necessary to stay or even live on them. However, the geographical location of deep - sea islands and reefs determines that there are problems such as inconvenient concrete transportation, insufficient on - site pouring conditions, inconvenient recycling and secondary utilization, and energy waste.

[0004] In modern society, the cup - shaped foundation technology is usually adopted to stabilize the foundation base in some places where on - site pouring is inconvenient and transportation is difficult. Then, based on the foundation base, buildings are constructed. The cup - shaped foundation technology refers to inserting the column into the hole reserved in the foundation, and then filling it tightly with grouting materials such as concrete. When using prefabricated assembled steel column connectors and the foundation, the foundation is placed on the foundation base of the foundation pit, fixed through a special structure, and second - poured and fixed with high - strength grouting materials. After the foundation is fixed, the prefabricated column is inserted into the foundation, and it is also fixed by a special structure and second - poured with high - strength grouting materials.

[0005] The prefabricated cup - shaped foundation is more convenient in the subsequent recycling process and can be reused, greatly reducing material waste.

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] The purpose of the present invention is to provide a fully prefabricated cup - shaped foundation for deep - sea islands and reefs and a construction method thereof, mainly to solve the problems of inconvenient concrete transportation, insufficient on - site pouring conditions, inconvenient recycling and secondary utilization, and energy waste due to geographical factors on deep - sea islands and reefs, and to ensure the stability of buildings on deep - sea islands and reefs.

[0008] In order to achieve the above - mentioned purpose, the present invention specifically adopts the following technical solutions:

[0009] The present invention provides a fully prefabricated cup - shaped foundation for deep - sea islands and reefs, which includes:

[0010] The foundation base is disposed in a preset foundation pit on the deep - sea island reef, fixedly connected to the foundation pit, and an installation groove is preset inside the foundation base;

[0011] The steel column connector has a fixing structure at the bottom end. The fixing structure is disposed in the installation groove. The fixing structure has a first state and a second state. In the first state, the fixing structure is disposed in the installation groove. In the second state, the fixing structure matches the contour of the installation groove and is clamped, for connecting and fixing the steel column connector to the foundation base;

[0012] The fixing layer is disposed between the foundation pit and the foundation base, and between the foundation base and the steel column connector, for increasing the connection strength between the foundation pit, the foundation base and the steel column connector.

[0013] In the present invention, by using prefabricated foundation bases and steel column connectors for the construction of deep - sea island reef foundations, problems such as inconvenient concrete transportation and insufficient on - site pouring conditions on deep - sea island reefs can be greatly alleviated. At the same time, in the present invention, through the use of a matching installation groove and fixing structure, the steel column connector and the foundation base are fixedly connected together. Meanwhile, the fixing layer is used to secondarily fix the foundation pit, the foundation base and the steel column connector. Under the dual action, the stability of the cup - shaped foundation is greatly improved, providing a solid foundation for subsequent buildings on the deep - sea island reef. It can not only save working time, but also, due to the use of prefabricated fittings, it is convenient for secondary recycling and saves resources.

[0014] According to an optional embodiment of the fully prefabricated cup - shaped foundation provided by the present invention, the foundation base is made of concrete, and a plurality of "king" - shaped steel beams are provided at the bottom. The upper layer of the steel beam is fixedly disposed in the foundation base, the middle layer of the steel beam is attached to the bottom of the foundation base, and the lower layer of the steel beam is fixedly connected to the foundation pit through the fixing layer.

[0015] According to an optional embodiment of the fully prefabricated cup - shaped foundation provided by the present invention, a circumferential angle steel is provided around the foundation base. The circumferential angle steel is fixedly connected to the middle layer of the edge steel beam, and bolt holes are preset on the circumferential angle steel for fixedly connecting to the foundation pit through bolts.

[0016] According to an optional embodiment of the fully prefabricated cup - shaped foundation provided by the present invention, a steel plate grouting port is provided on the circumferential angle steel for filling high - strength grouting material into the gap between the steel beam and the foundation pit; a foundation base grouting port is provided on the side of the foundation base for filling high - strength grouting material between the steel column connector and the foundation base.

[0017] According to an alternative embodiment of the fully prefabricated cup foundation provided by the present invention, the fixing structure includes a plurality of steel grooves, and the plurality of steel grooves are rotatably connected to the bottom end of the steel column connector. A rotating assembly is provided inside the steel column connector, and the rotating assembly can drive the plurality of steel grooves to move to match the contour of the installation groove.

[0018] According to an alternative embodiment of the fully prefabricated cup foundation provided by the present invention, the steel column connector includes a fixed steel column and a telescopic steel column. The telescopic steel column is telescopically arranged inside the fixed steel column. The steel groove is rotatably connected to the bottom of the fixed steel column, and the telescopic steel column drives the plurality of steel grooves to rotate to match the contour of the installation groove.

[0019] According to an alternative embodiment of the fully prefabricated cup foundation provided by the present invention, the rotating assembly includes a rotating rod. One end of the rotating rod extends outside the fixed steel column, and the other end extends into the fixed steel column. And the other end of the rotating rod is connected with a vertical gear. The vertical gear is meshed with two parallel horizontal gears through gears. The two horizontal gears are sleeved on the same vertical threaded rod and are threadedly engaged. The vertical threaded rod is connected with the telescopic steel column for controlling the up and down movement of the telescopic steel column.

[0020] According to an alternative embodiment of the fully prefabricated cup foundation provided by the present invention, a threaded socket is provided at the bottom end of the telescopic steel column, and a threaded hole meshing with the threaded socket is opened at the bottom of the foundation base.

[0021] According to an alternative embodiment of the fully prefabricated cup foundation provided by the present invention, the installation groove includes a rectangular insertion groove above and a trapezoidal clamping groove below, and the trapezoidal clamping groove is smaller at the top and larger at the bottom.

[0022] The present invention also provides a construction method for the fully prefabricated cup foundation described above, including the following steps:

[0023] Prefabricate the foundation base and the steel column connector, and transport them to the construction site of the deep-sea island reef;

[0024] Fix the foundation base to the foundation pit, and pour a fixing layer between the foundation base and the foundation pit;

[0025] Place the steel column connector into the installation groove opened on the foundation base for fixation, pour a fixing layer inside the steel column connector, and fix the steel column connector, the foundation base and the foundation pit together to complete the installation.

[0026] The construction method steps of the fully prefabricated cup foundation provided by the present invention are simple, easy to operate, all components are prefabricated in the factory in advance, and it is easy to implement on site, which can greatly improve the construction efficiency of buildings on deep-sea island reefs.

[0027] According to an alternative embodiment of the construction method provided by the present invention, placing the steel column connector into the installation groove opened on the foundation base for fixation includes the following steps:

[0028] Place the fixed steel column into the installation groove, and rotate the rotating rod on the fixed steel column to drive the vertical gear to rotate;

[0029] The vertical gear drives the horizontal gear to rotate, and the horizontal gear drives the telescopic steel column to move towards the foundation pit through the vertical threaded rod;

[0030] The telescopic steel column expands the steel groove, and the steel groove is clamped and fixed by matching the outer contour of the installation groove. At the same time, the threaded socket at the bottom end of the telescopic steel column enters the threaded hole on the foundation base to fix the fixed steel column and the foundation base.

[0031] According to an alternative embodiment of the construction method provided by the present invention, pouring the fixing layer between the foundation base and the foundation pit and pouring the fixing layer into the steel column connector are carried out simultaneously, saving time.

[0032] Compared with the prior art, the present invention greatly reduces the problems of inconvenient concrete transportation and inconvenient construction in the special environment of islands, and simplifies the installation process through a special fixing method, ensuring the connection strength between the foundation and the ground, and between the steel column and the foundation. Specifically, there are at least the following excellent features:

[0033] 1. After mechanically fixing the foundation pit, the precast foundation base, and the steel column connector, the present invention pours high-strength grouting material for secondary pouring of the column bottom - foundation and the foundation - ground at the same time period, realizing rapid assembly, reducing the frequency of using and pouring concrete on deep - sea islands and reefs, and at the same time, it can be recycled for the second time, saving resources.

[0034] 2. The present invention uses the fixing layer (formed by the solidification of high - strength grouting material) to perform secondary fixation on the foundation base, the steel groove, the telescopic steel column, and the fixed steel column, so that the force - bearing mode of the fixed steel column and the foundation base is enhanced from only being subject to the concrete bonding force to the bonding force between the telescopic steel column and the fixing layer, the supporting force of the fixing layer on the steel groove, the extrusion and expansion force of the fixing layer on the upper side of the steel groove, and the bonding force between the fixing layer and the fixed steel column itself. By enhancing the force - bearing mode, the purpose of improving the connection strength between the fixed steel column and the foundation base is achieved.

[0035] 3. By using the cooperation of the foundation base, fixed layer, steel beam and peripheral angle steel, the present invention fixes the foundation base to the foundation pit. By using the foundation base, fixed steel column, steel trough and fixed layer, the fixed steel column and the foundation base are fixed together, so that the foundation pit, foundation base and fixed steel column are tightly fixed together, improving the bearing capacity and stability of the cup foundation, providing a solid foundation for subsequent construction work, saving construction time and greatly improving work efficiency.

[0036] 4. The construction method provided by the present invention has simple steps. The installation process is simplified through a special fixing method, improving the efficiency of on-site assembly construction while ensuring the connection strength between the foundation pit, foundation base and fixed steel column.

[0037] It should be understood that the implementation of any embodiment of the present invention does not mean that multiple or all of the above beneficial effects need to be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained according to the provided drawings.

[0039] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. In the drawings:

[0040] Figure 1 is a cross-sectional view of the fully prefabricated cup foundation for deep-sea islands and reefs provided by the embodiment of the present invention;

[0041] Figure 2 is a front view of the foundation base provided by the embodiment of the present invention;

[0042] Figure 3 is a rear view of the foundation base provided by the embodiment of the present invention;

[0043] Figure 4 is an axonometric view of the steel column connector provided by the embodiment of the present invention;

[0044] Figure 5 is a bottom view of the steel column connector provided by the embodiment of the present invention;

[0045] Figure 6 It is the second state diagram of the steel column connector provided by the embodiment of the present invention;

[0046] Figure 7 It is the axonometric drawing of the telescopic steel column provided by the embodiment of the present invention;

[0047] Figure 8 It is the axonometric drawing of the fixed steel column provided by the embodiment of the present invention.

[0048] Wherein:

[0049] 1 - Foundation base; 2 - Installation groove; 3 - Steel beam; 4 - Peripheral angle steel; 5 - Threaded hole; 6 - Steel plate bolt; 7 - Steel plate grouting port; 8 - Flange; 9 - Fixed steel column; 10 - Rotating rod; 11 - Vertical gear; 12 - Horizontal gear; 13 - Telescopic steel column; 14 - Foundation base grouting port; 15 - Steel groove; 16 - Vertical threaded rod; 17 - Threaded socket.

[0050] The same or corresponding marks in the figure represent the same or corresponding parts. Detailed implementation manners

[0051] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer and more understandable, the embodiments of the present invention will be further described in detail below in combination with the embodiments and the drawings. Herein, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0052] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "coupling", "fixing" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0053] It should be understood that the terms "including / comprising", "consisting of... " or any other variant is intended to cover non-exclusive inclusion, so that a product, device, process or method including a series of elements not only includes those elements, but also includes other elements that are not clearly listed when needed, or further includes elements inherent to such product, device, process or method. Without further limitation, the elements defined by the statement "including / comprising... ", "consisting of... " do not exclude the existence of additional identical elements in the product, device, process or method including the said elements.

[0054] It should also be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the indicated device, component or structure must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation to the present invention.

[0055] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0056] The implementation of the present invention will be described in detail below in conjunction with the preferred embodiments.

[0057] As Figure 1-8 shown, this embodiment provides a fully prefabricated cup foundation for deep - sea islands and reefs. The fully prefabricated cup foundation mainly includes three major parts: a foundation base 1, a steel column connector, and a fixing layer. Among them, both the foundation base 1 and the steel column connector are prefabricated in the factory. After completion, they are transported to the deep - sea islands and reefs. The foundation base 1 is installed in a foundation pit dug in advance on the deep - sea islands and reefs, and then the steel column connector is installed into the foundation base 1. Finally, high - strength grouting material is poured to form the fixing layer to ensure the connection stability between the foundation base 1, the steel column connector, and the deep - sea islands and reefs.

[0058] By adopting the cup foundation technology, the present invention prefabricates the foundation base 1 and the steel column connector, and after transporting them to the deep - sea islands and reefs, uses the fixing layer for secondary pouring and fixing. This solves the problems of inconvenient concrete transportation and insufficient on - site pouring conditions on the deep - sea islands and reefs. At the same time, since both the foundation base 1 and the steel column connector are prefabricated, it is more convenient during the subsequent recycling process and can be reused, greatly reducing material waste.

[0059] In this embodiment, the foundation pit is constructed in advance on the deep - sea islands and reefs. The foundation base 1 is placed into the foundation pit on - site and fixedly connected to provide stability.

[0060] As Figure 1-3 shown, in this implementation, the foundation base 1 is formed by concrete pouring. An installation groove 2 is provided in the middle of the foundation base 1. The installation groove 2 coincides with the center line of the foundation base 1, that is, it is set at the central part of the foundation base 1. A threaded hole 5 is opened at the bottom end of the installation groove 2. The upper part of the installation groove 2 is a cuboid structure, and the lower part is a trapezoidal cube. That is, the installation groove 2 includes a rectangular insertion groove above and a trapezoidal clamping groove below, and the trapezoidal clamping groove is smaller at the top and larger at the bottom.

[0061] In some embodiments, a plurality of steel beams 3 are provided at the bottom end of the foundation base 1. The steel beams 3 are in the shape of a "king" character. Specifically, as Figure 2 shown, the steel beam 3 includes one web and three flanges perpendicular to the web. The three flanges are evenly and fixedly arranged on the web. The uppermost flange is the upper layer, the middle flange is the middle layer, and the lowermost flange is the lower layer. Therefore, the upper layer of the steel beam 3 is fixedly arranged inside the foundation base 1, that is, the upper flange of the steel beam 3 is embedded in the concrete. The middle flange of the steel beam 3 is in contact with the bottom of the foundation base 1, that is, in contact with the bottom surface of the concrete. The lower flange of the steel beam 3 is in contact with the foundation pit.

[0062] Meanwhile, as Figure 3 shown, in order to increase the connection stability between the foundation base 1 and the foundation pit, a circumferential angle steel 4 is also provided at the lower end of the foundation base 1. The circumferential angle steel 4 is arranged around the foundation base 1. At the same time, the circumferential angle steel 4 is fixedly connected (welded) to the outermost steel beam 3 at the end of the foundation base 1. At the same time, a steel plate grouting port 7 is opened on the circumferential angle steel 4. A number of screw holes are provided on the circumferential angle steel 4. The circumferential angle steel 4 is connected to the foundation pit through the steel plate bolt 6. At the same time, high-strength grouting material is poured at the steel plate grouting port 7 between the foundation base 1 and the foundation pit. After the high-strength grouting material solidifies, a fixed layer is formed.

[0063] In this embodiment, the upper layer of the steel beam 3 is used to ensure the connection strength between the steel beam 3 and the foundation base 1. The middle layer is used to ensure the stability of the bottom end of the foundation base 1 when it is laterally extruded by the steel beam 3. The lower layer plays the most crucial role in the connection between the foundation base 1 and the foundation pit. The foundation base 1 is firmly bonded to the foundation pit ground through the fixed layer. The foundation base 1 and the foundation pit are fixedly connected together through the cooperation of the circumferential angle steel 4, the fixed layer and the steel beam 3, ensuring the connection stability.

[0064] In some embodiments, a fixing structure is provided at the lower end of the steel column connector. The shape of the installation groove 2 provided on the foundation base 1 is adapted to the shapes of the steel column connector and the fixing structure. The fixing structure is arranged in the installation groove 2. The fixing structure has a first state and a second state. In the first state, the fixing structure can enter the installation groove 2. In the second state, the fixing structure can match the contour of the installation groove 2. In the second state, the fixing structure cooperates with the installation groove 2 to clamp and fix the steel column connector and the foundation base 1 together. It is easy to understand that the first state is the original state and the second state is the open state.

[0065] In this embodiment, as Figure 4 、 Figure 5As shown, to ensure a better connection effect, the steel column connector is a cuboid with a square cross-section. The fixing structure consists of several steel channels 15, which can be formed by processing steel plates or channel steels. The steel channels 15 are rotatably arranged at the lower end of the steel column connector. To achieve a better connection relationship, the number of steel channels 15 is four, and the tops of the four steel channels 15 are respectively arranged on the four sides of the bottom end of the steel column connector. For example, a rotatable connection is achieved through hinges. The steel channels 15 are originally in a closed state, which is the first state of the fixing structure. The bottoms of the four steel channels 15 are pieced together to form a cross shape. During the actual operation, when the steel channels 15 enter the installation groove 2, there is a certain distance between the steel channels 15 and the bottom end of the installation groove 2, ensuring that when the steel channels 15 rotate along the steel column connector, they can rotate to be close to the side of the installation groove 2, which is the second state of the fixing structure. At this time, clamping and fixing in the installation groove 2 is achieved.

[0066] To enable the steel channels 15 to rotate along the steel column connector in the installation groove 2, in this embodiment, as Figure 6 、 Figure 8 shown, the steel column connector includes a fixed steel column 9 and a telescopic steel column 13. During installation, the fixed steel column 9 is inserted into the rectangular insertion groove above the installation groove 2. The lower end of the fixed steel column 9 is rotatably connected to the steel channels 15, and the steel channels 15 are installed in the trapezoidal clamping groove below the installation groove 2. The telescopic steel column 13 is a solid steel column connector, and the telescopic steel column 13 is telescopically arranged inside the fixed steel column 9 through a steel column sleeve. The fixed steel column 9 controls the telescopic length of the telescopic steel column 13 through a rotating assembly. The steel channels 15 surround the outer periphery of the telescopic steel column 13, and the telescopic steel column 13 is in contact with the steel channels 15. During the movement of the telescopic steel column 13, the steel channels 15 are pushed outwards, and the steel channels 15 rotate along the fixed steel column 9 until the steel channels 15 are in contact with the side of the installation groove 2, and the steel channels 15 change from the closed state to the unfolded state.

[0067] To better control the movement of the telescopic steel column 13, as Figure 7 shown, the rotating assembly includes a rotating rod 10. One end of the rotating rod 10 is arranged outside the fixed steel column 9, and the other end of the rotating rod 10 is arranged inside the fixed steel column 9. The other side of the rotating rod 10 is fixedly connected with a vertical gear 11. The vertical gear 11 is connected to two horizontal gears 12 through gear meshing (wherein, the vertical gear 11 is perpendicular to the bottom surface of the foundation pit, and the horizontal gears 12 are parallel to the bottom surface of the foundation pit). The two horizontal gears 12 are concentrically sleeved on a vertical threaded rod 16, and the vertical threaded rod 16 is fixedly connected with the telescopic steel column 13. When it is necessary to control the operation of the telescopic steel column 13, the rotating rod 10 is toggled. The rotating rod 10 drives the vertical gear 11 to rotate. The vertical gear 11 drives the two horizontal gears 12 to rotate in the opposite direction. The horizontal gears 12 drive the vertical threaded rod 16 to move towards the foundation pit. The vertical threaded rod 16 drives the telescopic steel column 13 to move towards the foundation pit until the four steel channels 15 are pushed open to be in contact with the side of the installation groove 2.

[0068] In order to further ensure the stability of the connection between the telescopic steel column 13 and the basic base 1, in the present embodiment, a threaded connector 17 is provided at the bottom end of the telescopic steel column 13, which meshes with the threaded hole 5 opened at the bottom of the mounting groove 2. When the telescopic steel column 13 contacts the threaded hole 5 on the mounting groove 2, the transverse gear 12 continues to drive the vertical threaded rod 16 to rotate, and the vertical threaded rod 16 continues to drive the telescopic steel column 13 to rotate. The threaded connector 17 at the bottom end of the telescopic steel column 13 enters the threaded hole 5 on the mounting groove 2 and is threadedly connected, thereby further ensuring the stability of the connection between the telescopic steel column 13 and the basic base 1.

[0069] At the same time, after the telescopic steel column 13, steel trough 15 and foundation base 1 are connected, the high-strength grouting material is pumped from bottom to top through the foundation base grouting port 14 opened on the upper side of the foundation base 1 to fill the space between the telescopic steel column 13, the fixed steel column 9, the steel trough 15 and the foundation base 1, so that the entire structure is filled with grouting material. After the high-strength grouting material solidifies, a fixed layer is formed to ensure the stability of the connection between the telescopic steel column 13, the fixed steel column 9, the steel trough 15 and the foundation base 1. The threaded plug connector 17 on the telescopic steel column 13 and the threaded hole 5 at the bottom of the installation groove 2, the steel trough 15 and the inner contour of the installation groove 2, and the fixed layer ensure the fixity of the connection between the fixed steel column 9 and the foundation base 1. The triple guarantee can ensure the stability of the connection to the greatest extent.

[0070] A flange 8 is provided at the upper end of the fixed steel column 9 for connecting with the steel column of the fixed upper building to provide stable support for the fixed building.

[0071] In order to further deepen the understanding of the present invention, the present invention also provides a construction method for the above-mentioned fully assembled cup-shaped foundation for deep-sea islands and reefs, which method comprises the following steps:

[0072] (1) First, the foundation base 1, fixed steel column 9 and telescopic steel column 13 prepared in advance in the factory are transported to the deep-sea island reef, and a suitable foundation pit is excavated in advance on the deep-sea island reef. The foundation base 1 is hoisted into the foundation pit, and then the peripheral angle steel 4 on the foundation base 1 is fixedly connected to the bottom of the foundation pit through steel plate bolts 6;

[0073] (2) The fixed steel column 9 and the telescopic steel column 13 are hoisted into the installation groove 2 provided on the base 1, and then the rotating rod 10 is moved to open the steel groove 15;

[0074] (3) When the telescopic steel column 13 contacts the threaded hole 5 in the installation groove 2, the rotating rod 10 rotates, and the telescopic steel column 13 is driven to rotate through the cooperation of the vertical gear 11, the horizontal gear 12 and the vertical threaded rod 16, until the telescopic steel column 13 is fully engaged with the threaded hole 5 in the installation groove 2;

[0075] (4) Pour high-strength grouting material into the space between the foundation base 1 and the foundation pit through the steel plate grouting port 7, and pour high-strength grouting material into the space between the telescopic steel column 13, the fixed steel column 9 and the foundation base 1 through the foundation base grouting port 14. At the same time, the foundation base grouting port 14 can fully expand the steel groove 15 during grouting. Stop grouting after the spaces between the foundation base 1 and the foundation pit, and between the foundation base 1 and the fixed steel column 9 are completely filled. After the high-strength grouting material solidifies, a fixed layer is formed.

[0076] (5) After the installation of the fully prefabricated cup-shaped foundation is completed, it can be connected to the fixed building through the flange 8 on the fixed steel column 9 to provide a stable foundation for the building.

[0077] In the present invention, by selecting the prefabricated foundation base 1 and the fixed steel column 9, the problems of inconvenient concrete transportation and insufficient on-site pouring conditions on deep-sea islands and reefs are largely solved. During installation, mechanical connection is carried out first, and after completion, secondary pouring is carried out for the foundation and the foundation pit, and the connector and the foundation simultaneously, thus greatly saving the pouring time, enabling rapid assembly, and at the same time facilitating secondary recycling, saving resources, and also greatly saving construction time, ensuring that it can be quickly put into work on deep-sea islands and reefs.

[0078] In the present invention, the foundation base 1 and the foundation pit are fixedly connected through the circumferential angle steel 4, and through the cooperation of the steel beam 3 and the fixed layer, the connection between the foundation base 1 and the foundation pit is further strengthened, and the stability of the connection between the foundation base 1 and the foundation pit is greatly increased during their cooperation.

[0079] In the present invention, through the fitting of the installation groove 2 and the steel groove 15, the engagement of the telescopic steel column 13 and the threaded hole 5 at the bottom of the installation groove 2, and the cooperation of the fixed layer between the fixed steel column 9 and the foundation base 1, the fixity of the connection between the foundation base 1 and the fixed steel column 9 is greatly increased. The three cooperate with each other and can greatly increase the stability of the connection between the foundation base 1 and the fixed steel column 9.

[0080] The present invention fixedly connects the foundation pit, the foundation base 1 and the fixed steel column 9 together, ensuring the stability of the fixed building, and can greatly ensure the safety and stability of the staff and working equipment on deep-sea islands and reefs.

[0081] Finally, it should be noted that the above are only the preferred embodiments of this application and are not used to limit this application. Although this application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A fully assembled cup-shaped foundation for deep-sea islands and reefs, characterized in that: include: A basic base is arranged in a foundation pit preset on the deep sea island reef, is fixedly connected to the foundation pit, and has a mounting groove preset inside the basic base; A steel column connector, the bottom end of which is provided with a fixing structure, the fixing structure being arranged in the mounting groove, the fixing structure having a first state and a second state, in the first state the fixing structure is arranged in the mounting groove, in the second state the fixing structure matches and is engaged with the profile of the mounting groove, for connecting and fixing the steel column connector to the base base; A fixing layer is arranged between the foundation pit and the foundation base, and between the foundation base and the steel column connecting piece, and is used to increase the connection strength between the foundation pit, the foundation base and the steel column connecting piece; wherein The fixing structure includes a plurality of steel grooves, which are rotatably connected to the bottom end of the steel column connecting member, and a rotating assembly is provided in the steel column connecting member, and the rotating assembly can drive the plurality of steel grooves to move to match the profile of the installation groove; and The steel column connecting member includes a fixed steel column and a telescopic steel column. The telescopic steel column is telescopically arranged in the fixed steel column. The steel groove is rotatably connected to the bottom of the fixed steel column. The telescopic steel column drives the multiple steel grooves to rotate to match the contour of the installation groove.

2. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 1 is characterized in that: The foundation base is made of concrete, and a plurality of "W"-shaped steel beams are arranged at the bottom. The upper layer of the steel beams is fixedly arranged in the foundation base, the middle layer of the steel beams is fitted with the bottom of the foundation base, and the lower layer of the steel beams is connected and fixed to the foundation pit through the fixing layer.

3. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 2 is characterized in that: Circumferential angle steels are arranged around the base, and the circumferential angle steels are connected and fixed to the middle layer of the steel beam at the edge. Bolt holes are preset on the circumferential angle steels for fixed connection with the foundation pit through bolts.

4. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 3 is characterized in that: A steel plate grouting port is provided on the peripheral angle steel for filling high-strength grouting material into the gap between the steel beam and the foundation pit; a foundation base grouting port is provided on the side of the foundation base for filling high-strength grouting material between the steel column connector and the foundation base.

5. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 1 is characterized in that: The rotating assembly includes a rotating rod, one end of which extends out of the fixed steel column, and the other end extends into the fixed steel column, and the other end of the rotating rod is connected to a vertical gear, and the vertical gear is connected to two parallel transverse gears through gear meshing, and the two transverse gears are sleeved on the same vertical threaded rod and threadedly meshed, and the vertical threaded rod is connected to the telescopic steel column for controlling the up and down movement of the telescopic steel column.

6. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 1 is characterized in that: The bottom end of the telescopic steel column is provided with a threaded plug connector, and the bottom of the basic base is provided with a threaded hole engaged with the threaded plug connector.

7. The fully assembled cup-shaped foundation for deep-sea islands and reefs according to any one of claims 1 to 6, characterized in that: The installation slot comprises an upper rectangular insertion slot and a lower trapezoidal clamping slot, and the trapezoidal clamping slot is smaller at the top and larger at the bottom.

8. A construction method for a fully assembled cup-shaped foundation for deep-sea islands and reefs according to any one of claims 1 to 7, characterized in that: The steps include: Prefabricate foundation base and steel column connectors and transport them to the deep-sea island and reef construction site; The basic base is fixedly connected to the foundation pit, and a fixing layer is poured between the basic base and the foundation pit; The steel column connector is placed in the installation groove opened on the basic base for fixing, a fixing layer is poured in the steel column connector, the steel column connector, the basic base and the foundation pit are fixed together, and the installation is completed.

9. The construction method of the fully assembled cup-shaped foundation for deep-sea islands and reefs according to claim 8, characterized in that: Placing the steel column connector into the installation groove provided on the base for fixing includes the following steps: Place the fixed steel column into the installation groove, rotate the rotating rod on the fixed steel column, and drive the vertical gear to rotate; The vertical gear drives the transverse gear to rotate, and the transverse gear drives the telescopic steel column to move toward the foundation pit through the vertical threaded rod; The telescopic steel column opens the steel trough, and the steel trough matches the outer contour of the mounting groove to achieve clamping and fixing. At the same time, the threaded plug connector at the bottom end of the telescopic steel column enters the threaded hole on the basic base to fix the fixed steel column to the basic base.

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