Full-fabricated cup foundation for deep sea island and construction method

Abstract

The invention provides a full-assembly type cup foundation for a deep sea island and a construction method, the full-assembly type cup foundation comprises a foundation base which is configured in a foundation pit preset on the deep sea island and fixedly connected with the foundation pit, and a mounting groove is preset in the foundation base; a fixing structure is arranged at the bottom end of the steel column connecting piece, the fixing structure is arranged in the mounting groove, the fixing structure has a first state and a second state, the fixing structure is arranged in the mounting groove in the first state, and the fixing structure and the mounting groove are matched and clamped in the second state, so that the steel column connecting piece is fixedly connected with the foundation base; and the fixing layer is arranged between the foundation pit and the foundation base and between the foundation base and the steel column connecting piece. The structure is used for the deep sea island reef, the problems of inconvenient concrete transportation and inconvenient construction in the special environment of the island are greatly reduced, the installation process is simplified through a special fixing mode, the connection strength of the foundation and the foundation pit and the connection strength of the steel column and the foundation are guaranteed, and rapid assembly is achieved.

Description

Technical Field

[0001] The invention relates to the field of fully assembled structures of deep-sea islands and reefs, and in particular to a fully assembled 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 that protrude from the sea basin. Some of them may only emerge a little from the sea surface, and some may even be submerged below the sea surface. Although the area of ​​the island and reef sea area is small, the natural ecology there is very prosperous. If the barren sea basin is compared to a desert, then the island and reef sea area is an oasis. Many disciplines such as ocean dynamics, marine meteorology, and marine geology in the island and reef sea area 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 there. 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 today's society, the cup-mouth foundation technology is usually used to stabilize the foundation base in places where it is inconvenient to cast on site and transport, and then build buildings based on the foundation base. The cup-mouth foundation technology refers to inserting the column into the hole reserved in the foundation, and then filling it densely with concrete and other grouting materials. When using prefabricated assembled steel column connectors and foundations, the foundation is placed on the foundation base of the foundation pit, fixed by special structures and fixed by secondary pouring with high-strength grouting materials. After the foundation is fixed, the prefabricated column is inserted into the foundation, and it is also fixed by secondary pouring with special structures and high-strength grouting materials.

[0005] The prefabricated cup mouth foundation is more convenient in the subsequent recycling process and can be used twice, which greatly reduces material waste.

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

[0007] The purpose of the present invention is to provide a fully assembled cup-shaped foundation and a construction method for deep-sea islands and reefs, mainly to solve the problems of inconvenient concrete transportation, insufficient on-site pouring conditions, inconvenient recycling and secondary utilization, energy waste, etc. 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 object, the present invention particularly adopts the following technical solutions:

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

[0010] 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;

[0011] 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;

[0012] A fixing layer is arranged between the foundation pit and the basic base, and between the basic base and the steel column connecting piece, and is used to increase the connection strength between the foundation pit, the basic base and the steel column connecting piece.

[0013] The present invention uses prefabricated foundation bases and steel column connectors to construct deep-sea island and reef foundations, which can greatly alleviate the problems of inconvenient transportation of deep-sea island and reef concrete and insufficient on-site pouring conditions. At the same time, in the present invention, the steel column connector and the foundation base are fixed together by using compatible installation grooves and fixing structures, and the foundation pit, the foundation base and the steel column connector are secondarily fixed by using a fixing layer. The dual effect greatly improves the stability of the cup-mouth foundation, provides a solid foundation for subsequent buildings on deep-sea islands and reefs, and not only saves working time, but also facilitates secondary recycling due to the use of prefabricated accessories, saving resources.

[0014] According to an optional embodiment of the fully assembled cup-mouth foundation provided by the present invention, 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.

[0015] According to an optional embodiment of the fully assembled cup-mouth foundation provided by the present invention, circumferential angle steels are arranged around the four sides of the foundation 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 by bolts.

[0016] According to an optional embodiment of the fully assembled cup-shaped foundation provided by the present invention, a steel plate grouting port is opened 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 opened 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 optional embodiment of the fully assembled cup mouth foundation provided by the present invention, the fixed structure includes a plurality of steel grooves, and the plurality of steel grooves are rotatably connected to the bottom end of the steel column connecting member, and a rotating assembly is arranged in the steel column connecting member, 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 optional embodiment of the fully assembled cup mouth foundation provided by the present invention, 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, and the telescopic steel column drives the multiple steel grooves to rotate to match the contour of the installation groove.

[0019] According to an optional embodiment of the fully assembled cup mouth base provided by the present invention, the rotating assembly includes a rotating rod, one end of the rotating rod 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.

[0020] According to an optional embodiment of the fully assembled cup mouth foundation provided by the present invention, a threaded plug connector is provided at the bottom end of the telescopic steel column, and a threaded hole engaged with the threaded plug connector is provided at the bottom of the base base.

[0021] According to an optional embodiment of the fully assembled cup mouth base provided by the present invention, the installation groove includes an upper rectangular insertion groove and a lower trapezoidal clamping groove, and the trapezoidal clamping groove is smaller at the top and larger at the bottom.

[0022] The present invention also provides a construction method according to the fully assembled cup mouth foundation, comprising the following steps:

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

[0024] The basic base is fixedly connected to the foundation pit, and a fixing layer is poured between the basic base and the foundation pit;

[0025] 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.

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

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

[0028] 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;

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

[0030] 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.

[0031] According to an optional 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 in the steel column connector are performed simultaneously, which saves time.

[0032] Compared with the prior art, the present invention greatly reduces the inconvenience of concrete transportation and construction in the special environment of the island, simplifies the installation process through a special fixing method, and ensures the connection strength between the foundation and the ground, and between the steel column and the foundation. Specifically, it has at least the following advantages:

[0033] 1. The present invention mechanically fixes the foundation pit with the prefabricated foundation base and steel column connectors, and then casts high-strength grouting material for the column bottom-foundation and foundation-ground for the second time in the same period of time, thereby achieving rapid assembly, reducing the frequency of using and pouring concrete on deep-sea islands and reefs, and also allowing for secondary recycling to save resources.

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

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

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

[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-mentioned beneficial effects must be possessed or achieved at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0039] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented, so they have no substantial technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention. In the accompanying drawings:

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

[0041] Figure 2 A front view of a basic base provided by an embodiment of the present invention;

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

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

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

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

[0046] Figure 7 An axonometric view of a telescopic steel column provided in an embodiment of the present invention;

[0047] Figure 8 This is an axonometric view of a fixed steel column provided in an embodiment of the present invention.

[0048] in:

[0049] 1-foundation base; 2-installation groove; 3-steel beam; 4-circumferential 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 plug connector.

[0050] The same or corresponding symbols in the drawings indicate the same or corresponding parts. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the embodiments and drawings. Here, the illustrative embodiments of the present invention and their description are used to explain the present invention, but are not intended to limit the present invention.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] It should be understood that the terms "include / comprise", "consist of..." or any other variations are intended to cover non-exclusive inclusion, so that a product, device, process or method that includes a series of elements includes not only those elements, but also may include other elements not explicitly listed when necessary, or also includes elements inherent to such product, device, process or method. In the absence of more restrictions, the elements defined by the sentence "include / comprise...", "consist of..." do not exclude the presence of other identical elements in the product, device, process or method that includes the elements.

[0054] It is also necessary to understand that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device, component or structure must have a specific direction, be constructed or operate in a specific direction, and should not be understood as a limitation on the present invention.

[0055] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

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

[0057] like Figure 1-8 As shown, this embodiment provides a fully assembled cup-shaped foundation for deep-sea islands and reefs. The fully assembled cup-shaped foundation mainly includes three parts: a foundation base 1, a steel column connector and a fixed layer. The foundation base 1 and the steel column connector are all prefabricated in the factory and transported to the deep-sea islands and reefs after completion. The foundation base 1 is installed in a foundation pit excavated in advance on the deep-sea islands and reefs, and then the steel column connector is installed in the foundation base 1. Finally, high-strength grouting material is poured to form a fixed layer to ensure the connection stability between the foundation base 1, the steel column connector and the deep-sea islands and reefs.

[0058] The present invention adopts the cup-mouth foundation technology to prefabricate the foundation base 1 and the steel column connecting parts, and after transporting them to the deep-sea islands and reefs, a fixing layer is used for secondary pouring and fixing, thereby solving the problems of inconvenient concrete transportation and insufficient on-site pouring conditions on deep-sea islands and reefs. At the same time, since the foundation base 1 and the steel column connecting parts are all prefabricated, they are more convenient in the subsequent recycling process and can be used for a second time, which greatly reduces the waste of materials.

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

[0060] like Figure 1-3 As shown, in this embodiment, the basic base 1 is made of poured concrete, and a mounting groove 2 is arranged in the middle of the basic base 1. The mounting groove 2 coincides with the center line of the basic base 1, that is, it is arranged in the central part of the basic base 1, and a threaded hole 5 is opened at the bottom end of the mounting groove 2. The upper part of the mounting groove 2 is a rectangular parallelepiped structure, and the lower part is a trapezoidal cube, that is, the mounting groove 2 includes an upper rectangular insertion groove and a lower trapezoidal clamping groove, and the trapezoidal clamping groove is small at the top and large 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 a 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 in the foundation base 1, that is to say, 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 to say, 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 provided 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 a 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, in order to ensure a better connection effect, the steel column connector is a rectangular parallelepiped with a square cross-section. The fixed structure is a plurality of steel grooves 15. The steel grooves 15 can be formed by processing steel plates or channel steels. The steel grooves 15 are rotatably arranged at the lower end of the steel column connector. In order to achieve a better connection relationship, the number of steel grooves 15 is four, and the top ends of the four steel grooves 15 are respectively arranged on the four sides of the bottom end of the steel column connector, for example, a rotatable connection is achieved by a hinge. The steel grooves 15 are originally in a closed state, which is the first state of the fixed structure. The bottom ends of the four steel grooves 15 are pieced together into a cross shape. In actual operation, when the steel grooves 15 enter the installation groove 2, the steel grooves 15 are at a certain distance from the bottom end of the installation groove 2, ensuring that the steel grooves 15 can be rotated to be close to the side of the installation groove 2 when rotating along the steel column connector, which is the second state of the fixed structure. At this time, the clamping fixation in the installation groove 2 is achieved.

[0066] In order to enable the steel channel 15 to rotate along the steel column connecting piece in the installation groove 2, in this embodiment, Figure 6 , Figure 8 As shown, the steel column connecting piece includes a fixed steel column 9 and a telescopic steel column 13. When installed, 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 groove 15. The steel groove 15 is installed in the trapezoidal clamping groove below the installation groove 2. The telescopic steel column 13 is a solid steel column connecting piece. 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 component. The steel groove 15 is enclosed around the outer periphery of the telescopic steel column 13. The telescopic steel column 13 fits with the steel groove 15. During the movement of the telescopic steel column 13, the steel groove 15 is pushed outward, and the steel groove 15 rotates along the fixed steel column 9 until the steel groove 15 fits with the side of the installation groove 2, and the steel groove 15 changes from a closed state to an expanded state.

[0067] In order to better control the movement of the telescopic steel column 13, as Figure 7 As shown, the rotating assembly includes a rotating rod 10, one end of which is arranged on the outside of the fixed steel column 9, and the other end of the rotating rod 10 is arranged on the inside of the fixed steel column 9. The other side of the rotating rod 10 is fixedly connected with a vertical gear 11, and 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 gear 12 is parallel to the bottom surface of the foundation pit), and the two horizontal gears 12 are concentrically sleeved on a vertical threaded rod 16, and the vertical threaded rod 16 is fixedly connected to 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, and the rotating rod 10 drives the vertical gear 11 to rotate, and the vertical gear 11 drives the two horizontal gears 12 to rotate in the opposite direction, and the horizontal gear 12 drives the vertical threaded rod 16 to move in the direction of the foundation pit, and the vertical threaded rod 16 drives the telescopic steel column 13 to run in the direction of the foundation pit until the four steel grooves 15 are pushed open to fit 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 the 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) High-strength grouting material is poured between the foundation base 1 and the foundation pit through the steel plate grouting port 7, and high-strength grouting material is poured 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 also fully open the steel groove 15 during grouting. When the gaps between the foundation base 1 and the foundation pit and between the foundation base 1 and the fixed steel column 9 are completely filled, the grouting is stopped. The high-strength grouting material solidifies to form a fixed layer;

[0076] (5) After the fully assembled cup-shaped foundation is installed, 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 a prefabricated foundation base 1 and fixed steel columns 9, the problems of inconvenient concrete transportation and insufficient on-site pouring conditions on deep-sea islands and reefs are solved to a great extent. During installation, a mechanical connection is first made, and after completion, the foundation and the foundation pit, the connecting parts and the foundation are cast for the second time at the same time, thereby greatly saving the casting time, allowing for rapid assembly, and facilitating secondary recycling, saving resources, and greatly saving construction time, ensuring that the work on the deep-sea islands and reefs can be put into use as soon as possible.

[0078] In the present invention, the foundation base 1 is fixedly connected to the foundation pit by the circumferential angle steel 4, and the connection between the foundation base 1 and the foundation pit is further strengthened by the cooperation between the steel beam 3 and the fixed layer. The cooperation between the two greatly increases the stability of the connection between the foundation base 1 and the foundation pit.

[0079] In the present invention, the fixity of the connection between the base 1 and the fixed steel column 9 is greatly increased by fitting the mounting groove 2 with the steel groove 15, meshing the telescopic steel column 13 with the threaded hole 5 at the bottom of the mounting groove 2, and cooperating with the fixing layer between the fixed steel column 9 and the base 1. The three complement each other and can greatly increase the stability of the connection between the base 1 and the fixed steel column 9.

[0080] The present invention ensures the stability of the fixed building by fixedly connecting the foundation pit, the foundation base 1 and the fixed steel column 9, and can ensure the safety and stability of the workers and working equipment on the deep-sea islands and reefs to a great extent.

[0081] Finally, it should be noted that the above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present 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 basic base, and between the basic base and the steel column connecting piece, and is used to increase the connection strength between the foundation pit, the basic base and the steel column connecting piece.

2. The fully assembled cup mouth foundation according to claim 1, 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 mouth foundation according to claim 2, 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 mouth foundation according to claim 3, 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 mouth foundation according to claim 1, characterized in that: The fixed structure includes a plurality of steel grooves, which are rotatably connected to the bottom end of the steel column connecting piece, and a rotating assembly is arranged in the steel column connecting piece, and the rotating assembly can drive the plurality of steel grooves to move to match the contour of the installation groove.

6. The fully assembled cup mouth foundation according to claim 5, characterized in that: 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.

7. The fully assembled cup mouth foundation according to claim 6, 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 of which 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 to control the up and down movement of the telescopic steel column; and / or 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.

8. The fully assembled cup mouth foundation according to any one of claims 1 to 7, 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.

9. A construction method of a fully assembled cup-shaped foundation according to any one of claims 1 to 8, 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.

10. The construction method according to claim 9, 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 horizontal gear to rotate, and the horizontal 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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