Offshore soft soil foundation air film greenhouse structure

Abstract

The application discloses a kind of outer sea soft soil foundation on air film greenhouse structure, including air film body, air film fixed ground beam and pile foundation, pile foundation passes through soft soil foundation and enters pile foundation bearing stratum, its upper end is connected with air film fixed ground beam and provides support force for air film body on it, air film body is fixed with air film fixed ground beam by connecting structure;Multiple span direction air film ribs and length direction air film ribs are arranged on air film body, span direction air film rib and length direction air film rib are crossed and connected to form air film structure grid skeleton, air film structure grid skeleton is supported to form space shell by filling high-pressure gas;Span direction air film rib and length direction air film rib are located at the upper half of the left and right sides of the greenhouse at several intersection points and are provided with honeycomb structure, for dispersing node stress, the application is compact in structure, reasonable in design, air film structure grid skeleton is supported to form space shell by filling high-pressure gas to air film rib, with strong rigidity, can resist huge typhoon formation wind load.

Description

Technical Field

[0001] This invention relates to the field of air-supported membrane building technology, specifically an air-supported membrane greenhouse structure on soft soil foundations in the open sea. Background Technology

[0002] The offshore area generally faces engineering challenges such as frequent typhoons, strong winds, deep soft soil layers, low foundation bearing capacity, and significant uneven settlement, which have become the main constraints on the construction of large-span bulk cargo sheds. Currently, large-span bulk cargo sheds with spans of over 100 meters all adopt light steel structures, which result in extremely high project costs and are not conducive to port construction.

[0003] Therefore, it is necessary to find new structural alternatives to light steel structures for material sheds. Air-supported membrane structures, as a new type of building structure system developed based on flexible membrane materials, have emerged in line with the development of the times and brought many conveniences to people. Compared with traditional buildings, they have novel shapes, strong plasticity, convenient movement, high airtightness and flame retardancy, and are energy-saving and environmentally friendly, conforming to the contemporary development process.

[0004] However, existing conventional air-supported membrane structures have significant shortcomings in terms of adaptability to ultra-large spans, resistance to strong typhoon wind loads, and stability in deep soft soil foundations. They cannot meet the complex construction requirements of large-span bulk cargo yards, high typhoon loads, and deep soft soil foundations in offshore island ports. Summary of the Invention

[0005] The purpose of this invention is to provide an air-supported membrane greenhouse structure on soft soil foundation in the open sea, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air-supported membrane greenhouse structure on a soft soil foundation in the open sea, comprising an air-supported membrane body, an air-supported membrane fixing beam, and pile foundations. The pile foundations penetrate the soft soil foundation and enter the pile foundation bearing layer. Their upper ends are connected to the air-supported membrane fixing beams to provide support for the air-supported membrane body. The air-supported membrane body and the air-supported membrane fixing beams are fixed by a connecting structure. The air-film body is provided with multiple span-direction air-film ribs and length-direction air-film ribs. The span-direction air-film ribs and length-direction air-film ribs are intersected and connected to form an air-film structure grid skeleton. The air-film structure grid skeleton is supported by high-pressure gas to form a space shell. The span-direction air-supported membrane ribs and the length-direction air-supported membrane ribs are all provided with honeycomb grid structures at several intersections on the upper half of the left and right sides of the greenhouse to disperse node stress. A pull ring is provided in the middle of the inner side of the honeycomb grid structure. Several corresponding control devices are provided on the left and right sides of the air-supported membrane fixing beam. The control device is connected to the corresponding pull ring by a cable. When the air-supported membrane body tilts to the side due to strong wind, the control device will be driven synchronously through the corresponding side cable, so that the control device presses down on the connecting structure, further strengthening the connection force between the air-supported membrane body and the air-supported membrane fixing beam.

[0007] Furthermore, the connection structure includes a fixed aluminum channel and a preservative-treated wooden strip. The preservative-treated wooden strip is disposed within the fixed aluminum channel, and the space between the fixed aluminum channel and the preservative-treated wooden strip is used to place the air-supported membrane body. The inner wall of the fixed aluminum channel protrudes towards the air-supported membrane body to form a receiving groove. The edge of the air-supported membrane body is provided with a buried rope, which is inserted into the receiving groove and fixed by the preservative-treated wooden strip. The control device includes an arc-shaped frame and a base. The base is fixed to the top of the air-supported membrane fixing beam. The middle part of the arc-shaped frame is hinged to the base. The upper end of the arc-shaped frame is connected to a cable, and its lower end abuts against the top of the preservative-treated wooden strip.

[0008] Furthermore, the lower end of the arc-shaped frame is hinged with a pressure block, and the upper end of the arc-shaped frame is fixed with a recurved frame. The cable is fixed to the recurved frame by a hook. The end of the arc-shaped frame near the air film body is connected to an arc-shaped support frame, and the arc-shaped support frame is arranged in a gradually expanding structure from bottom to top.

[0009] Furthermore, the anti-corrosion wood strip includes an upper pressing wood strip, a base wood, and an extruded wood strip. The extruded wood strip is located between the upper pressing wood strip and the base wood. A groove is provided on the left side of the top of the base. The extruded wood strip is slidably disposed on the top of the groove. The upper end of the extruded wood strip has a structure that gradually slopes downward from left to right. The bottom left side of the upper pressing wood strip is provided with an inclined surface that engages with the extruded wood strip. The extruded wood strip is located on the side of the receiving groove.

[0010] Furthermore, the portion of the air-supported membrane body within the honeycomb grid structure is connected to an elastic membrane, and the pull ring is fixedly installed on the elastic membrane.

[0011] Furthermore, a protective casing mechanism is provided on the air-supported membrane fixed ground beam. The protective casing mechanism is arranged and fitted on the outside of the pile foundation corresponding to the pile foundation position. The protective casing mechanism includes a supporting casing and an upper casing. Several supporting bars are distributed on the side end of the supporting casing, and two adjacent sets of supporting bars are at different heights. Several slots are opened on both sides of the supporting bars. Support plates are hinged in the slots, and gears are sleeved on the hinge shaft of the support plates. Adjusting bars are slidably assembled inside the supporting bars. Racks that mesh with the corresponding gears are provided on both sides of the adjusting bars. The upper casing is slidably embedded in the upper part of the supporting casing. A guide rod is provided at the top of the supporting bars. The guide rod extends through the supporting bars and connects to the adjusting bars. The top of the guide rod is connected to the upper casing.

[0012] Furthermore, the upper cylinder is provided with several inlet pipes corresponding to the guide rods. The guide rods have a hollow structure, and the inlet pipes are connected to the guide rods. A liquid outlet is opened at the side end of the guide rods. Several inclined anchoring pipes are provided on the support bars. A liquid guiding pipe is provided inside the support bars. The liquid guiding pipe is connected to each anchoring pipe. The upper end of the liquid guiding pipe extends to connect with the side end of the adjusting bar. When the upper cylinder descends to the lowest point, the liquid outlet and the upper end of the liquid guiding pipe are connected to the diffusion nozzle, which has a trumpet-shaped structure, to make the injected curing agent evenly diffuse into the soft soil foundation.

[0013] Furthermore, an anti-settlement cushion layer is provided at the bottom of the air-supported membrane fixed ground beam. The anti-settlement cushion layer is made of graded sand and gravel mixed with cement grout and poured. A geogrid is laid under the anti-settlement cushion layer. The geogrid is in contact with the soft soil foundation and is used to disperse the vertical pressure of the air-supported membrane fixed ground beam and reduce the uneven settlement of the soft soil foundation.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention has a simple structure and reasonable design. The air-supported membrane is made of high-strength carbon fiber material. After being filled with high-pressure gas, the air-supported membrane ribs have strong rigidity, which supports the mesh skeleton of the air-supported membrane structure to form a spatial shell. Combined with the wind-resistant system composed of cables and control devices, it can effectively resist the wind load formed by huge typhoons in the open sea and ensure the stability of the greenhouse structure.

[0015] The connection structure of this device adopts a slot positioning and wooden strip pressure design. The layered structure of the anti-corrosion wooden strips, combined with the control device's self-rotation pressure design under strong wind, achieves a sealed and firm connection between the air membrane and the ground beam, preventing the air membrane from leaking or falling off due to strong winds.

[0016] In addition, this device effectively solves the problems of low bearing capacity, easy settlement, and large horizontal displacement of soft soil foundations in offshore areas. By using pile foundations to penetrate into the bearing layer and a casing mechanism to reinforce the foundation, it provides stable foundation support for the greenhouse. The casing mechanism unfolds through the support plate to form a cross structure. Combined with the injection of a curing agent to improve the soft soil foundation, it enhances the connection between the casing and the foundation, further suppresses uneven settlement of the soft soil foundation, and improves the overall foundation stability. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an air-supported membrane greenhouse. Figure 2 This is a cross-sectional view of the air-supported membrane greenhouse structure; Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the control device. Figure 5 This is a schematic diagram of the casing mechanism distribution; Figure 6 This is a schematic diagram of the casing mechanism; Figure 7 This is a sectional view of the casing mechanism.

[0018] In the diagram, the components are: air-supported membrane body - 1, air-supported membrane fixed beam - 2, pile foundation - 3, span-direction air-supported membrane rib - 4, length-direction air-supported membrane rib - 5, honeycomb grid structure - 6, pull ring - 7, control device - 8, cable - 9, fixed aluminum channel - 10, anti-corrosion wood strip - 11, accommodating groove - 12, buried rope - 13, arc frame - 14, base - 15, pressure block - 16, reverse curved frame - 17, arc-shaped pressure frame - 18, upper pressure wood strip - 19, base wood - 20, extruded wood strip - 21, elastic membrane - 22, protective casing mechanism - 23, supporting protective casing - 24, upper casing - 25, support strip - 26, support plate - 27, gear - 28, adjusting strip - 29, rack - 30, guide rod - 31, inlet pipe - 32, liquid outlet - 33, anchor pipe - 34, liquid guiding pipe - 35, anti-settlement cushion layer - 36. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 7As shown, an air-supported membrane greenhouse structure on a soft soil foundation in the open sea includes an air-supported membrane body 1, an air-supported membrane fixing beam 2, and a pile foundation 3. The pile foundation 3 passes through the soft soil foundation and enters the pile foundation bearing layer. Its upper end is connected to the air-supported membrane fixing beam 2 to provide support for the air-supported membrane body 1. The air-supported membrane body 1 and the air-supported membrane fixing beam 2 are fixed by a connecting structure. The air-film body 1 is provided with multiple span-direction air-film ribs 4 and length-direction air-film ribs 5. The span-direction air-film ribs 4 and length-direction air-film ribs 5 are intersected and connected to form an air-film structure grid skeleton. The air-film structure grid skeleton is supported by high-pressure gas to form a space shell. The air-supported membrane body 1 and the air-supported membrane ribs are made of high-strength carbon fiber. The air-supported membrane ribs 4 are arranged along the span direction of the greenhouse, and the air-supported membrane ribs 5 are arranged along the length direction of the greenhouse. The two are intersected and connected to form a complete air-supported membrane structure grid skeleton, which divides the air-supported membrane body 1 into several independent grid units. After high-pressure gas is injected into the air-supported membrane ribs, the air-supported membrane ribs have strong rigidity and can disperse the force on the air-supported membrane body 1. The tension generated by the inflation pressure and the impact force brought by the external wind load (especially the huge wind load generated by typhoons) are evenly transferred to the entire air-supported membrane body 1, avoiding local stress concentration that could lead to air-supported membrane damage. At the same time, the grid skeleton can improve the overall rigidity of the air-supported membrane, prevent the air-supported membrane from excessively inflating, wrinkling or tearing under strong winds, and ensure the stability and integrity of the air-supported membrane shell.

[0021] A honeycomb grid structure 6 is installed at several intersections of the span-direction air-supported membrane ribs 4 and the length-direction air-supported membrane ribs 5 on the upper half of the left and right sides of the greenhouse to disperse node stress. A pull ring 7 is installed in the middle of the inner side of the honeycomb grid structure 6. Several corresponding control devices 8 are installed on the left and right sides of the air-supported membrane fixing beam 2. A cable 9 is connected between the control device 8 and the corresponding pull ring 7. When the air-supported membrane body 1 tilts to the side due to strong wind, the control device 8 will be driven synchronously through the corresponding cable 9, so that the control device 8 presses down on the connecting structure, further strengthening the connection force between the air-supported membrane body 1 and the air-supported membrane fixing beam 2.

[0022] In this embodiment, the connecting structure includes a fixed aluminum groove 10 and a preservative-treated wooden strip 11. The preservative-treated wooden strip 11 is disposed in the fixed aluminum groove 10. The space between the fixed aluminum groove 10 and the preservative-treated wooden strip 11 is used to place the air film body 1. The inner wall of the fixed aluminum groove 10 protrudes towards the air film body 1 to form a receiving groove 12. The edge of the air film body 1 is provided with a buried rope 13. The buried rope 13 is inserted into the receiving groove 12 and is fixed by abutting against the preservative-treated wooden strip 11. The control device 8 includes an arc frame 14 and a base 15. The base 15 is fixed to the top of the air film fixing beam 2. The middle part of the arc frame 14 is hinged to the base 15. The upper end of the arc frame 14 is connected to the cable 9, and its lower end abuts against the top of the preservative-treated wooden strip 11.

[0023] The anticorrosive wood strip 11 presses the air film body 1 tightly into the receiving groove 12 through the abutting action, and fixes the air film body 1 by friction and pressure; the receiving groove 12 of the fixing aluminum groove 10 is designed to limit the horizontal and vertical displacement of the buried rope 13 and prevent the buried rope 13 from coming out of the groove; the anticorrosive wood strip 11 has anticorrosive and wear-resistant properties, and can prevent it from rotting due to long-term contact with seawater and humid environment.

[0024] In this embodiment, the lower end of the arc frame 14 is hinged to a pressing block 16, and the upper end of the arc frame 14 is fixed to a recurved frame 17. The cable 9 is fixed to the recurved frame 17 by a hook. The end of the arc frame 14 near the air film body 1 is connected to an arc-shaped abutment 18, which is arranged in a gradually expanding structure from bottom to top.

[0025] When the air-supported membrane body 1 is subjected to strong winds from the open sea, the wind load will generate a horizontal thrust, causing the air-supported membrane to tilt to one side. When the air-supported membrane tilts to one side, it will drive the honeycomb grid structure 6 on the corresponding side to move synchronously, and then pull the cable 9 through the pull ring 7, so that the cable 9 generates tension, and transmits the tilt displacement of the air-supported membrane to the control device 8, providing power for the operation of the control device 8. The upper end of the arc frame 14 is connected to the cable 9 via the anti-bend frame 17 (the anti-bend frame 17 can change the direction of force on the cable 9, ensuring that the tension can effectively drive the arc frame 14 to rotate), and the lower end is hinged to the pressure block 16 (the pressure block 16 can increase the contact area with the anti-corrosion wood strip 11, avoiding excessive local pressure that could damage the anti-corrosion wood strip 11); for example, when the control device 8 on the left is subjected to wind from the left, it will tilt to the right, thereby pulling the upper end of the arc frame 14 to rotate towards the air film. According to the lever principle, the lower end of the arc frame 14 will rotate towards the anti-corrosion wood strip 11, causing the pressure block 16 to press down on the anti-corrosion wood strip 11, preventing the anti-corrosion wood strip 11 from falling off.

[0026] In addition, the arc-shaped support 18 is connected to the end of the arc-shaped frame 14 near the air film and has a gradually expanding structure from bottom to top. When the arc-shaped frame 14 rotates, it can assist in pressing the edge of the air film and further restrict the outward displacement of the air film.

[0027] In this embodiment, the anticorrosive wood strip 11 includes an upper pressing wood strip 19, a base wood 20, and an extruded wood strip 21. The extruded wood strip 21 is located between the upper pressing wood strip 19 and the base wood 20. A groove is provided on the left side of the top of the base 15. The extruded wood strip 21 is slidably disposed on the top of the groove. The upper end of the extruded wood strip 21 has a structure that gradually slopes downward from left to right. An inclined surface that engages with the extruded wood strip 21 is provided on the left side of the bottom surface of the upper pressing wood strip 19. The extruded wood strip 21 is located on the side of the receiving groove 12.

[0028] The anticorrosive wood strip 11 has a layered structure. Its core function is to work with the control device 8 to further strengthen the fixation of the air membrane in strong winds. When the pressure block 16 of the control device 8 presses down on the upper pressure wood strip 19, the upper pressure wood strip 19 will move downwards. Its inclined surface will squeeze the inclined surface of the pressure wood strip 21, causing the pressure wood strip 21 to slide towards the receiving groove 12, thereby squeezing the buried rope 13 at the edge of the air membrane and pressing the buried rope 13 more tightly into the receiving groove 12. This further enhances the connection between the air membrane and the fixed aluminum groove 10 and the anticorrosive wood strip 11, preventing the air membrane from falling off or leaking air when tilted in strong winds.

[0029] In this embodiment, the portion of the air-supported membrane body 1 within the honeycomb grid structure 6 is connected to an elastic membrane 22, and a pull ring 7 is fixedly installed on the elastic membrane 22. The intersection of the air-supported membrane ribs is a critical area of ​​stress concentration, especially under strong winds, where the intersection nodes are prone to damage due to excessive stress. The honeycomb grid structure 6 adopts a honeycomb design, which can evenly distribute the concentrated stress of the intersection nodes to the surrounding air-supported membrane body 1 and grid skeleton, reduce the stress peak at the nodes, protect the air-supported membrane ribs and air-supported membrane body 1, and extend their service life. The elastic membrane 22 is connected to the portion of the air-supported membrane body 1 within the honeycomb grid structure 6 and has a certain elastic deformation capacity, which can adapt to the slight deformation after the air-supported membrane is inflated and the instantaneous displacement caused by strong winds, avoiding damage to the air-supported membrane due to rigid connection. At the same time, the pull ring 7 is fixed on the elastic membrane 22, providing a stable connection point for the cable 9, ensuring that the cable 9 can effectively transmit the tension without damaging the air-supported membrane body 1.

[0030] In this embodiment, a protective casing mechanism 23 is provided on the air-supported membrane fixed ground beam 2. The protective casing mechanism 23 is arranged and fitted on the outside of the pile foundation 3 corresponding to the position of the pile foundation 3. The protective casing mechanism 23 includes a supporting casing 24 and an upper casing 25. Several vertically arranged support bars 26 are distributed on the side end of the supporting casing 24. The two adjacent sets of support bars 26 are at different heights, so that the support plates 27 will not jam when they are deployed synchronously. After the support plates 27 on the adjacent support bars 26 are deployed, they will cross to form a cross structure, which further enhances the connection stability between the protective casing mechanism 23 and the soft soil foundation. Several slots are provided on both the left and right sides of the support bar 26. A support plate 27 is hinged to the slots, and a gear 28 is sleeved on the hinge shaft of the support plate. An adjusting bar 29 is slidably assembled inside the support bar 26. A rack 30 is provided on both sides of the adjusting bar 29 to mesh with the corresponding gear 28. The upper cylinder 25 is slidably embedded in the upper part of the support sleeve 24. A guide rod 31 is provided at the top of the support bar 26. The guide rod 31 extends through the support bar 26 and connects with the adjusting bar 29. The top of the guide rod 31 is connected to the upper cylinder 25.

[0031] During construction, the support casing 24 is first precisely positioned and fixed at the preset pile foundation 3 position. Then, the upper casing 25 is pressed down to drive the guide rod 31 and adjusting bar 29 to move, so that the support plate 27 unfolds and is inserted into the soft soil foundation, completing the pre-fixation of the casing mechanism 23. Subsequently, the pile foundation 3 is laid through the support casing 24. The support casing 24 is fitted on the outside of the pile foundation 3 to protect the pile foundation 3 and prevent it from being damaged by waves and floating objects during the laying and subsequent use. At the same time, it enhances the pile foundation 3's resistance to lateral displacement. After the pile foundation 3 is laid, the air-supported membrane ground beam 2 is installed and connected to the pile foundation 3.

[0032] After the support casing 24 is installed and fixed, the upper casing 25 is pressed down first, which drives the guide rod 31 to move downward, thereby driving the adjusting strip 29 to slide downward within the support strip 26. When the adjusting strip 29 slides downward, the meshing transmission between the rack 30 and the gear 28 drives the support plate 27 to rotate around the hinge shaft, so that the support plate 27 rotates out of the slot in the support strip 26 and inserts into the surrounding soft soil foundation. The support plate 27 can enhance the connection between the support casing 24 and the soft soil foundation, improve the anti-tilting ability of the casing mechanism 23, and thus help enhance the stability of the pile foundation 3.

[0033] In this embodiment, the upper cylinder 25 is provided with several inlet pipes 32 corresponding to the guide rod 31. The guide rod 31 has a hollow structure, and the inlet pipes 32 are connected to the guide rod 31. The side end of the guide rod 31 is provided with a liquid outlet 33. The support bar 26 is provided with several inclined anchoring pipes 34. The support bar 26 is provided with a liquid guiding pipe 35, which is connected to each anchoring pipe 34. The upper end of the liquid guiding pipe 35 extends to connect with the side end of the adjusting bar 29. When the upper cylinder 25 descends to the lowest point, the liquid outlet 33 is connected to the upper end of the liquid guiding pipe 35. The outlet end of the anchoring pipe 34 is provided with a diffusion nozzle, which has a trumpet-shaped structure and is used to make the injected curing agent evenly diffuse into the soft soil foundation.

[0034] When the upper cylinder 25 descends to its lowest point, the outlet 33 on the guide rod 31 precisely aligns with the upper end of the liquid guiding pipe 35. At this time, the curing agent injected into the inlet pipe 32 will enter the liquid guiding pipe 35 through the hollow guide rod 31 and the outlet 33, and then be distributed to each anchoring pipe 34 through the liquid guiding pipe 35. The anchoring pipe 34 is inclined, and the trumpet-shaped diffusion nozzle at its outlet end can evenly diffuse the curing agent into the soft soil foundation around the pile foundation 3. After the curing agent solidifies, it can bond with the soft soil particles, improve the bearing capacity and integrity of the soft soil foundation, and reduce the settlement and deformation of the soft soil foundation.

[0035] In this embodiment, an anti-settlement cushion layer 36 is provided at the bottom of the air-supported membrane fixed beam 2. The anti-settlement cushion layer 36 is made of graded sand and gravel mixed with cement grout and poured. A geogrid is laid under the anti-settlement cushion layer 36. The geogrid is in contact with the soft soil foundation and is used to disperse the vertical pressure of the air-supported membrane fixed beam 2 and reduce the uneven settlement of the soft soil foundation. The core problem of offshore soft soil foundation is low bearing capacity and easy settlement. The core function of the pile foundation 3 is to break through the weak soil layer and transfer the overall load of the greenhouse to the bearing layer of the pile foundation with sufficient bearing capacity, so as to prevent the greenhouse from being deformed by the soft soil foundation. Instability; meanwhile, the anti-settlement cushion layer 36 is made of graded sand and gravel mixed with cement grout and has a certain strength and integrity. When laid at the bottom of the air-supported membrane ground beam 2, it can evenly diffuse the vertical pressure transmitted from the ground beam to the geogrid below, avoiding excessive local pressure on the ground beam that could cause the soft soil foundation to sink; the geogrid is laid under the anti-settlement cushion layer 36 and is in direct contact with the soft soil foundation. Its grid structure can enhance the integrity of the soft soil layer. By utilizing the tensile properties of the geogrid, it can disperse the vertical pressure, suppress the compression deformation of the soft soil foundation, and reduce the uneven settlement of the foundation.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A structure for an air-supported membrane greenhouse on soft soil foundation in offshore areas, characterized in that: It includes an air-supported membrane body, an air-supported membrane fixed beam, and pile foundations. The pile foundations penetrate the soft soil foundation and enter the pile foundation bearing layer. Their upper ends are connected to the air-supported membrane fixed beams to provide support for the air-supported membrane body. The air-supported membrane body and the air-supported membrane fixed beams are fixed by a connecting structure. The air-film body is provided with multiple span-direction air-film ribs and length-direction air-film ribs. The span-direction air-film ribs and the length-direction air-film ribs are intersected and connected to form an air-film structure grid skeleton. The air-film structure grid skeleton is supported by high-pressure gas to form a space shell. The span-direction air-supported membrane ribs and the length-direction air-supported membrane ribs are provided with honeycomb grid structures at several intersections on the upper half of the left and right sides of the greenhouse to disperse node stress. A pull ring is provided in the middle of the inner side of the honeycomb grid structure. Several corresponding control devices are provided on the left and right sides of the air-supported membrane fixing beam. The control device is connected to the corresponding pull ring by a cable. When the air-supported membrane body tilts to the side due to strong wind, the control device will be driven synchronously through the corresponding cable, so that the control device presses down on the connecting structure, further strengthening the connection force between the air-supported membrane body and the air-supported membrane fixing beam. The connecting structure includes a fixed aluminum channel and a preservative-treated wooden strip. The preservative-treated wooden strip is placed inside the fixed aluminum channel, and the space between the fixed aluminum channel and the preservative-treated wooden strip is used to place the air-supported membrane body. The inner wall of the fixed aluminum channel protrudes towards the air-supported membrane body to form a receiving groove. The edge of the air-supported membrane body is provided with a buried rope, which is inserted into the receiving groove and fixed by the preservative-treated wooden strip. The control device includes an arc-shaped frame and a base. The base is fixed to the top of the air-supported membrane fixing beam. The middle part of the arc-shaped frame is hinged to the base. The upper end of the arc-shaped frame is connected to the cable, and its lower end abuts against the top of the preservative-treated wooden strip. The lower end of the arc-shaped frame is hinged to a pressure block, and the upper end of the arc-shaped frame is fixed to a recurved frame. The cable is fixed to the recurved frame by a hook. The end of the arc-shaped frame near the air film body is connected to an arc-shaped support frame, which is arranged in a gradually expanding structure from bottom to top. The anti-corrosion wood strip includes an upper pressure wood strip, a base wood, and an extruded wood strip. The extruded wood strip is located between the upper pressure wood strip and the base wood. A groove is provided on the left side of the top of the base. The extruded wood strip is slidably disposed on the top of the groove. The upper end of the extruded wood strip is arranged in a structure that gradually slopes downward from left to right. The left side of the bottom surface of the upper pressure wood strip is provided with an inclined surface that engages with the extruded wood strip. The extruded wood strip is located on the side of the receiving groove.

2. The air-supported membrane greenhouse structure on soft soil foundation in offshore areas according to claim 1, characterized in that: The portion of the air-supported membrane body within the honeycomb grid structure is connected to an elastic membrane, and the pull ring is fixedly installed on the elastic membrane.

3. The air-supported membrane greenhouse structure on soft soil foundation in offshore areas according to claim 1, characterized in that: A protective casing mechanism is installed on the air-supported membrane fixed ground beam. The protective casing mechanism is arranged and fitted on the outside of the pile foundation corresponding to the pile foundation position. The protective casing mechanism includes a supporting casing and an upper casing. Several vertically arranged support bars are distributed on the side end of the supporting casing, and two adjacent sets of support bars are at different heights. Several slots are opened on both sides of the support bars. Support plates are hinged to the slots, and gears are sleeved on the hinge shaft of the support plates. Adjusting bars are slidably assembled inside the support bars. Both sides of the adjusting bars are provided with racks that mesh with the corresponding gears. The upper casing is slidably embedded in the upper part of the supporting casing. A guide rod is provided at the top of the support bar. The guide rod extends through the support bar and connects to the adjusting bar. The top of the guide rod is connected to the upper casing.

4. The air-supported membrane greenhouse structure on soft soil foundation in offshore areas according to claim 3, characterized in that: The upper cylinder is equipped with several inlet pipes corresponding to the guide rods. The guide rods are hollow, and the inlet pipes are connected to the guide rods. The side end of the guide rods has a liquid outlet. The support strip is equipped with several inclined anchoring pipes. The support strip contains a liquid guiding pipe, which is connected to each anchoring pipe. The upper end of the liquid guiding pipe extends to connect with the side end of the adjusting strip. When the upper cylinder descends to the lowest point, the liquid outlet connects with the upper end of the liquid guiding pipe. The outlet end of the anchoring pipe is equipped with a diffusion nozzle. The diffusion nozzle has a trumpet-shaped structure and is used to evenly diffuse the injected curing agent into the soft soil foundation.

5. The air-supported membrane greenhouse structure on soft soil foundation in offshore areas according to claim 1, characterized in that: The bottom of the air-supported membrane fixed ground beam is provided with an anti-settlement cushion layer, which is made of graded sand and gravel mixed with cement grout. A geogrid is laid under the anti-settlement cushion layer. The geogrid is in contact with the soft soil foundation and is used to disperse the vertical pressure of the air-supported membrane fixed ground beam and reduce the uneven settlement of the soft soil foundation.

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