Multi-scene geotechnical anti-flood wall system and construction method

Abstract

The invention belongs to the technical field of flood control engineering, and discloses a multi-scene geotechnical anti-flood wall system and a construction method.The multi-scene geotechnical anti-flood wall system comprises a plurality of anti-flood units which are detachably connected through connecting mechanisms, and geotechnical cloth composite structures are attached to the outer walls of the anti-flood units; the connecting mechanism comprises a fixed connecting assembly and a movable connecting assembly, and the movable connecting assembly can achieve staggered connection of the adjacent flood control units. The fixing mechanism comprises a multifunctional composite rod arranged in the flood control unit in a lifting mode, the outer wall of the multifunctional composite rod is provided with an anti-pulling assembly for improving the anti-pulling capacity of the multifunctional composite rod in the soft soil structure, and the bottom end of the multifunctional composite rod is provided with an adsorption assembly used for being adsorbed to the hard soil structure. The device has the advantages of being rapid in splicing, self-adaptive in sealing, light in weight, high in strength, environmentally friendly and the like, the device can be used in different working environments through different connecting forms and fixing forms, the applicability is high, and rapid response and repeated utilization of flood control projects are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of flood control engineering, and particularly relates to a multi-scenario geotechnical flood control wall system and a construction method thereof. Background Art

[0002] Flood disasters are common disaster problems in cities or on dams, and the threat to cities and infrastructure is increasing day by day.

[0003] Currently, the methods adopted in flood control projects for flood disasters include concrete flood control walls, sandbag flood control dikes, etc.; however, when pouring or stacking flood control walls or sandbag flood control dikes on-site, there are problems such as long layout time, low efficiency, and high labor consumption. In case of emergency, these measures may not be able to quickly and effectively respond to the threat of floods; at the same time, the flood control walls or sandbag flood control dikes have insufficient sealing performance, and the joints between units are prone to leakage and are easy to collapse; and most of the existing flood control walls or sandbag flood control dikes are disposable structures, which cannot be reused, and are prone to generate construction waste after demolition, increasing the cost of disaster prevention and control.

[0004] Most of the existing flood control walls can only be used on flat ground. For uneven foundations such as soft soil foundations, the flood control walls cannot fit well with the ground, thus affecting the flood control effect. Of course, there are also flexible flood control walls. For example, the "flexible flood control wall" disclosed in the patent with the publication number CN207685788U includes a water bag filled with water and installed in the water bag accommodation space, which deforms according to the shape of the foundation and fits the foundation. However, this technical solution requires injecting a large amount of water into the water bag in advance, and the frame and mesh are welded with metal materials, resulting in a relatively large overall self-weight. Generally speaking, it is not conducive to the rapid emergency flood control.

[0005] Therefore, the present application designs a multi-scenario geotechnical flood control wall system and a construction method to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-scenario geotechnical flood control wall system and a construction method to solve the problems existing in the prior art.

[0007] To achieve the above purpose, the present invention provides the following solutions: The present invention provides a multi-scenario geotechnical flood control wall system, including:

[0008] A plurality of flood control units, the adjacent flood control units are detachably connected, and a geotextile composite structure is attached to the outer wall of the flood control units;

[0009] A connection mechanism, the connection mechanism can realize the detachable connection between adjacent flood control units; the connection mechanism includes a fixed connection component and a movable connection component arranged on the flood control units, and the movable connection component can realize the staggered connection between adjacent flood control units;

[0010] Fixing mechanism, which is used to fix the flood control unit on the ground; the fixing mechanism includes a multi-functional composite rod arranged vertically in the flood control unit, an anti-pulling component for increasing the anti-pulling ability of the multi-functional composite rod in soft soil structure is arranged on the outer wall of the multi-functional composite rod, and an adsorption component for adsorbing on hard soil structure is arranged at the bottom end of the multi-functional composite rod.

[0011] Preferably, the flood control unit includes an HDPE frame, and the geotextile composite structure is attached to the outer wall of the HDPE frame.

[0012] Preferably, a number of stiffening ribs arranged in a staggered manner are arranged in the HDPE frame, and the stiffening ribs abut and support the inner wall of the geotextile composite structure.

[0013] Preferably, the fixed connection component includes lugs and fixed chutes correspondingly arranged on the HDPE frame, the lugs and the fixed chutes are symmetrically arranged on both sides of the HDPE frame, and when connecting, the lugs are snapped into the fixed chutes on the adjacent HDPE frame.

[0014] Preferably, the movable connection component includes a foldable geotextile board wound in the HDPE frame, one end of the foldable geotextile board extends out of the HDPE frame, and when connecting, the foldable geotextile board is snapped into the movable chute on the adjacent HDPE frame.

[0015] Preferably, the foldable geotextile board includes a number of movable units, adjacent movable units are rotationally connected and longitudinally slidable; convex blocks and slide rails are respectively arranged on both sides of the movable unit, and when connecting, the convex blocks are inserted into the slide rails and longitudinally slide with the slide rails.

[0016] Preferably, the anti-pulling component includes a launch tube obliquely opened downward on the outer wall of the multi-functional composite rod, an anchor nail is elastically arranged in the launch tube, a launch spring is arranged between the anchor nail and the launch tube, and after the multi-functional composite rod is anchored into the soft soil structure, the anchor nail is ejected out of the launch tube; an anti-pulling module for increasing the anti-pulling ability is arranged in the anchor nail.

[0017] Preferably, the anti-pulling module includes mechanical claws arranged in the anchor nail, the mechanical claws are elastically connected in the anchor nail through connecting springs, and a cable is connected to the rear end of the mechanical claws; after the anchor nail pops out into the soft soil structure, the mechanical claws pop out of the anchor nail, and when retracting, the mechanical claws and the anchor nail are retracted in sequence through the cable.

[0018] Preferably, the adsorption assembly includes a placement cavity opened in the multi-functional composite rod, a vacuum suction cup is installed at the bottom end of the placement cavity, and when the flood control unit is fixed on the hard ground, the vacuum suction cup extends out of the placement cavity and adsorbs on the ground.

[0019] The present invention also discloses a construction method for a construction multi-scenario geotechnical flood control wall system, including the following steps:

[0020] Prefabricate flood control units in the field and transport the flood control units to the flood fighting site;

[0021] Judge the land conditions, ground environment and flatness of the flood fighting site;

[0022] When the flood fighting ground is a hard ground, the multi-functional composite rod is stored in the flood control unit without extending out, and the flood control unit is adsorbed and fixed on the hard ground through the adsorption assembly;

[0023] When the flood fighting ground is a soft soil structure, the multi-functional composite rod extends out of the flood control unit and is inserted into the soft ground, and the anti-pulling assembly is used to increase the stability of the fixation;

[0024] Fix and connect adjacent flood control units in sequence. When the flood fighting ground is a plane, adjacent flood control units are connected through a fixed connection assembly. When the flood fighting ground is an inclined plane, adjacent flood control units are connected through a movable connection assembly.

[0025] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses a multi-scenario geotechnical flood control wall system and a construction method. The flood control wall system is composed of a number of detachable flood control units, which are prefabricated and produced. Only hoisting and alignment are required on-site for assembly, significantly reducing the manual operation time. It is suitable for emergency flood control scenarios, facilitating transportation, installation and disassembly, and can flexibly adjust the length and scale of the flood control wall according to actual needs; the geotextile composite structure outside the flood control unit has functions such as anti-seepage and self-cleaning, which can reduce the influence of water penetration and sediment deposition on the flood control wall, extend the service life of the flood control wall, and reduce the maintenance cost; the connection mechanism includes a fixed connection component and a movable connection component. The fixed connection component realizes the stable connection of adjacent flood control units and is suitable for use on flat ground, while the movable connection component allows adjacent flood control units to be misaligned and connected. It can not only ensure the connection tightness, but also enable adjacent units to move up and down along the foundation to adapt to different terrains. The design of multiple connection forms can ensure the integrity and stability of the flood control wall under different terrains, and at the same time can adapt to the minor deformation of the foundation, improving the reliability of the flood control wall; the multi-functional composite rod of the fixing mechanism can be lifted and lowered within the flood control unit, and the anti-pulling component can increase the anti-pulling ability in soft soil structures, increasing the stability of the fixation; the adsorption component realizes fixation through negative pressure adsorption on hard soil structures, enabling the flood control wall to be stably set under different soil conditions. The flood control wall system can adapt to various foundation structures such as soft soil and hard soil through the fixing mechanism with different fixing methods, and can be effectively installed and play a flood control role, expanding the scope of application; the detachable connection of the flood control units and the design of the multi-functional composite rod in the fixing mechanism make the operation of the flood control wall relatively simple during installation and can be quickly deployed; after the flood season ends, it is also convenient for disassembly and recycling, improving the convenience of use and the recycling rate of resources. The flood control wall system can be reused, and the reuse times are not less than 10 times, effectively reducing the generation of construction waste and material waste.

[0026] The present invention has the advantages of rapid splicing, self-adaptive sealing, light weight, high strength and ecological friendliness. Through different connection forms and fixing forms, the device can be used in different working environments, with strong applicability, realizing the rapid response and reuse of flood control projects. Brief Description of the Drawings

[0027] The drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0028] Figure 1 is the three-dimensional schematic diagram of the flood control unit of the present invention;

[0029] Figure 2 is the top view structural schematic diagram of the HDPE frame of the present invention;

[0030] Figure 3 Structural schematic diagram of the fixed card slot of the flood control unit of the present invention;

[0031] Figure 4 Structural schematic diagram of the lug of the flood control unit of the present invention;

[0032] Figure 5 Schematic diagram of the connection state of the foldable geotextile board of the present invention;

[0033] Figure 6 Top view structural schematic diagram of the movable unit of the present invention;

[0034] Figure 7 Schematic diagram of the unfolded connection state of the foldable geotextile board of the present invention;

[0035] Figure 8 Top view structural schematic diagram of the winding state of the foldable geotextile board of the present invention;

[0036] Figure 9 Back view schematic diagram of the winding state of the foldable geotextile board of the present invention;

[0037] Figure 10 Structural schematic diagram of the multi-functional composite rod of the present invention;

[0038] Figure 11 Structural schematic diagram of the anchor nail of the present invention;

[0039] Figure 12 Schematic diagram of the closed state of the pull-out plate of the present invention;

[0040] Figure 13 Schematic diagram of the unfolded state of the pull-out plate of the present invention;

[0041] In the figure: 1. HDPE frame; 2. Stiffening rib; 3. Geotextile composite structure; 4. Fixed rod; 5. Foldable geotextile board; 6. Push-pull baffle; 7. Lug; 8. Movable card slot; 9. Fixed card slot; 10. Slide rail; 11. Sealing strip; 12. Convex block; 13. Connecting band; 14. Rotating shaft; 15. Multi-functional composite rod; 16. Spiral blade; 17. Rotating handle; 18. Anchor nail; 19. Launch tube; 20. Mechanical claw; 21. Cable; 22. Manual trigger; 23. Trigger tube; 24. Recovery pull ring; 25. Vacuum chuck; 26. First button; 27. Second button; 28. Pull-out plate. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Refer to Figures 1-13 As shown, this embodiment provides a multi-scenario geotechnical flood control wall system, including:

[0045] A number of flood control units, adjacent flood control units are detachably connected, and a geotextile composite structure 3 is attached to the outer wall of the flood control unit;

[0046] A connection mechanism, which can realize the detachable connection between adjacent flood control units; the connection mechanism includes a fixed connection component and a movable connection component arranged on the flood control unit, and the movable connection component can realize the staggered connection of adjacent flood control units;

[0047] A fixing mechanism, which is used to fix the flood control unit on the ground; the fixing mechanism includes a multi-functional composite rod 15 arranged vertically in the flood control unit, an anti-pulling component for increasing the anti-pulling ability of the multi-functional composite rod 15 in the soft soil structure is arranged on the outer wall of the multi-functional composite rod 15, and an adsorption component for adsorbing on the hard soil structure is arranged at the bottom of the multi-functional composite rod 15.

[0048] The present invention discloses a multi-scenario geotechnical flood control wall system and a construction method. The flood control wall system is composed of a number of detachably connected flood control units, which are prefabricated and produced. Only hoisting and alignment are required on-site for assembly, significantly reducing the manual operation time. It is applicable to emergency flood control scenarios, facilitating transportation, installation and disassembly, and can flexibly adjust the length and scale of the flood control wall according to actual needs; the geotextile composite structure 3 outside the flood control unit has functions such as anti-seepage and self-cleaning, which can reduce the impact of water penetration and sediment deposition on the flood control wall, extend the service life of the flood control wall, and reduce the maintenance cost; the connection mechanism includes a fixed connection component and a movable connection component. The fixed connection component realizes the stable connection of adjacent flood control units and is suitable for use on flat ground, while the movable connection component allows the adjacent flood control units to be misaligned and connected. It can not only ensure the connection tightness, but also enable the adjacent units to move up and down along the foundation, adapting to different terrains. The design of multiple connection forms can ensure the integrity and stability of the flood control wall under different terrains, and at the same time can adapt to the minor deformation of the foundation, improving the reliability of the flood control wall; the multi-functional composite rod 15 of the fixing mechanism can be lifted and lowered within the flood control unit, and the anti-pulling component can increase the anti-pulling ability in soft soil structures, increasing the stability of the fixation; the adsorption component realizes fixation through negative pressure adsorption on hard soil structures, enabling the flood control wall to be stably set under different soil conditions. The flood control wall system can adapt to various foundation structures such as soft soil and hard soil through the fixing mechanism with different fixing methods, and can be effectively installed and play a flood control role, expanding the scope of application; the flood control units are detachably connected, and the design of the multi-functional composite rod 15 in the fixing mechanism makes the operation of the flood control wall relatively simple during installation and can be quickly deployed; after the flood season ends, it is also convenient for disassembly and recycling, improving the convenience of use and the reuse rate of resources, and the flood control wall system can be reused, with the number of reuse not less than 10 times, effectively reducing the generation of construction waste and material waste. The present invention has the advantages of rapid splicing, self-adaptive sealing, light weight and high strength, and ecological friendliness. Through different connection forms and fixing forms, the device can be used in different working environments, with strong applicability, realizing the rapid response and reuse of flood control projects.

[0049] For a further optimized solution, the flood control unit includes an HDPE frame 1, and the geotextile composite structure 3 is attached to the outer wall of the HDPE frame 1; a number of staggered stiffening ribs 2 are arranged inside the HDPE frame 1, and the stiffening ribs 2 abut and support the inner wall of the geotextile composite structure 3. The HDPE frame 1 is a hollow frame structure made of HDPE material and is the basic module for forming the flood control wall system. In order to increase the structural strength of the HDPE frame 1, a cross-shaped stiffening rib 2 is arranged inside it to disperse the stress and improve the strength of the HDPE frame 1; the geotextile composite structure 3 is attached to the HDPE frame 1 and the stiffening ribs 2, playing a role in flood control and water blocking.

[0050] In one embodiment of the present invention, the HDPE used to fabricate the HDPE frame 1, whose Chinese name is high-density polyethylene, is a thermoplastic resin with high crystallinity and non-polarity. The exterior of virgin HDPE appears milky white, and it is somewhat translucent in a thin cross-section. It has relatively high tensile strength, impact resistance, environmental stress cracking resistance, good heat resistance and cold resistance, good chemical stability, relatively high rigidity and toughness, good mechanical strength, and relatively good dielectric properties and environmental stress cracking resistance, meeting the usage requirements of the HDPE frame 1.

[0051] In one embodiment of the present invention, the thickness of the wall of the structural member of the HDPE frame 1 is not less than 20 mm, and its compressive strength of the structure ≥ 35 MPa.

[0052] In one embodiment of the present invention, the structural thickness after the overall molding of the HDPE frame 1 can be fabricated according to actual requirements.

[0053] In one embodiment of the present invention, the geotextile composite structure 3 includes a geotextile impermeable layer and a superhydrophobic coating. The geotextile impermeable layer is a polyester filament geotextile, which is thermally bonded to the surface of the HDPE frame 1; the geotextile impermeable layer is a polyester filament geotextile, which is thermally bonded to the surface of the HDPE frame 1; the superhydrophobic coating is composed of a composite of nano-SiO₂ and fluorosilane resin, having a rapid hydrophobic and self-cleaning function, and is sprayed on the surface of the geotextile, having a rapid hydrophobic and self-cleaning function, and is sprayed on the geotextile impermeable layer; the geotextile composite structure 3 formed by the combination of the geotextile impermeable layer and the superhydrophobic coating has a self-cleaning property, reducing the influence of sediment deposition on the impermeability performance and effectively reducing water penetration.

[0054] In one embodiment of the present invention, the geotextile impermeable layer of the present invention is a polyester filament geotextile composite structure 3, with a grammage of 600 g / m² and a permeability coefficient ≤ 5×10⁻³ cm / s.

[0055] In one embodiment of the present invention, the polyester filament geotextile of the geotextile composite structure 3 can also be replaced with other high-strength fiber materials with waterproof properties, which can be selected by those skilled in the art according to requirements.

[0056] In one embodiment of the present invention, the superhydrophobic coating is composed of nano-SiO₂ with a particle size of 20 nm and fluorosilane resin in a mass ratio of 1:4, having a rapid hydrophobic and self-cleaning function.

[0057] In one embodiment of the present invention, the superhydrophobic coating can be replaced with a nano superhydrophobic coating or other superhydrophobic self-cleaning coatings, which can be selected by those skilled in the art according to requirements.

[0058] In one embodiment of the present invention, the contact angle of the superhydrophobic coating ≥ 155°, and the rolling angle ≤ 5°.

[0059] For a further optimized solution, the fixed connection component includes lugs 7 and fixed slots 9 respectively arranged on the HDPE frame 1. The lugs 7 and the fixed slots 9 are symmetrically arranged on both sides of the HDPE frame 1. During connection, the lugs 7 are snapped into the fixed slots 9 on the adjacent HDPE frame 1. When the flood control units are connected on a flat ground, the lugs 7 and the fixed slots 9 of the adjacent flood control units are inserted and fixed, realizing the rapid and stable connection of adjacent flood control units and ensuring the stability of the overall structure of the flood control wall. After use, it can also be quickly disassembled, facilitating recycling.

[0060] For a further optimized solution, the movable connection component includes a foldable geotextile board 5 wound inside the HDPE frame 1. One end of the foldable geotextile board 5 extends out of the HDPE frame 1. During connection, the foldable geotextile board 5 is snapped into the movable slot 8 on the adjacent HDPE frame 1. The foldable geotextile board 5 is flexibly arranged and can be wound inside the flood control unit through a rotating connection. During use, the push-pull baffle 6 arranged at the end of the flood control unit is pushed open to expose the end of the foldable geotextile board 5, and then the foldable geotextile board 5 is pulled out of the flood control unit, and then the end is snapped into the movable slot 8 of the adjacent flood control unit, realizing the rapid connection of adjacent flood control units. The foldable geotextile board 5 can slide longitudinally, enabling adjacent flood control units to be misaligned and connected, adapting to different terrains and enhancing the terrain adaptability of the flood control wall.

[0061] In an embodiment of the present invention, the push-pull baffle 6 is slidably connected to the side wall of the flood control unit in a pull-out manner, used to block the foldable geotextile board 5 when not in use, avoiding accidental collision during transportation and storage.

[0062] In an embodiment of the present invention, during connection, the foldable geotextile board 5 is in a normal connection state, that is, when adjacent flood control units are connected, the foldable geotextile board 5 is in a connected state. When connecting on a flat ground, the lugs 7 and the fixed slots 9 are in a connected state, and less of the foldable geotextile board 5 is pulled out from the flood control unit. The combination of the two connection methods effectively increases the bonding strength. When connecting on an uneven ground, the lugs 7 and the fixed slots 9 cannot be connected, and only the foldable geotextile board 5 and the movable slot 8 are used for connection, ensuring flood control on uneven ground.

[0063] For a further optimized solution, the foldable geosynthetic slab 5 includes a number of movable units, and adjacent movable units are rotatably connected and longitudinally slidable; bumps 12 and slide rails 10 are respectively arranged on both sides of the movable unit. When connecting, the bump 12 is inserted into the slide rail 10 and longitudinally slides with the slide rail 10. The foldable geosynthetic slab 5 is composed of a number of movable units that are rotatably connected and longitudinally slidable. A chute is arranged on one side of the movable unit, and a bump 12 is arranged on the other side. When unfolded, the bump 12 is snapped into the chute of the adjacent movable unit, only allowing up and down sliding, which is adapted to uneven ground, enabling it to better adapt to terrain changes while ensuring the connection strength, and improving the flexibility of the flood control wall; the backwater side edges of adjacent movable units are connected together through a rotating shaft 14, allowing the slab to rotate 180° towards the water-facing side. It can not only facilitate the rotation of adjacent movable units, but also be tightly pressed by water when the water-facing side is impacted by flood, ensuring the connection strength and stability.

[0064] In an embodiment of the present invention, the foldable geosynthetic slab 5 is made of a carbon fiber reinforced HDPE composite geosynthetic material. The carbon fiber content is 12%, the carbon fiber length is 2 - 3 mm, and the diameter is 7 μm. At this content, the flexural strength of the composite material reaches 72 MPa, and the impact strength is 9.6 kJ / m2, which can effectively resist the flood impact load.

[0065] In an embodiment of the present invention, a slide rail 10 and a sealing strip 11 are arranged in the chute, and both sides of the slide rail 10 are wrapped by the sealing strip 11. When adjacent movable units are horizontally spliced, the sealing strip 11 forms a waterproof barrier.

[0066] In an embodiment of the present invention, a geotextile composite structure 3 is arranged on the surface of the movable unit, and at the same time, the connection area on the water-facing side of the movable unit is heated to a semi-molten state, and pressure is applied to form a connection belt 13 between the movable units.

[0067] In an embodiment of the present invention, when the foldable geosynthetic slab 5 is unfolded, the bump 12 of the adjacent movable unit is embedded in the slide rail 10, and the backwater side rotating shaft 14 contracts to form a continuous rigid slab. The adjacent movable units achieve vertical displacement along the foundation through the slide rail 10 and the bump 12, which is adapted to uneven ground; when being stored, the bump 12 is released from the slide rail 10, the movable unit rotates along the connection belt 13, and the rotating shaft 14 is opened to align the overlapping areas of the adjacent slabs.

[0068] In an embodiment of the present invention, one end of the foldable geosynthetic slab 5 located within the flood control unit is connected to the fixed rod 4. The thickness of the foldable geosynthetic slab 5 is 0.1 mm less than the width of the movable card slot 8 to achieve a tight butt joint between the two.

[0069] In an embodiment of the present invention, the width of the movable unit is designed according to the actual size, so that the foldable geosynthetic slab 5 can be smoothly rolled up.

[0070] For a further optimized solution, the anti-pulling component includes a launch tube 19 that is inclined downward and opened on the outer wall of the multifunctional composite rod 15. An anchor nail 18 is elastically arranged in the launch tube 19, and a launch spring is arranged between the anchor nail 18 and the launch tube 19. After the multifunctional composite rod 15 is anchored into the soft soil structure, the anchor nail 18 is ejected from the launch tube 19; an anti-pulling module for increasing the anti-pulling ability is arranged in the anchor nail 18. The multifunctional composite rod 15 is spirally lifted in the flood control unit. When fixing on the soft soil structure, first rotate the multifunctional composite rod 15 through the rotary handle 17 arranged on the flood control unit, so that the multifunctional composite rod 15 extends out of the flood control unit and is inserted into the soft soil structure, and then trigger through the manual trigger 22 arranged at the top of the flood control unit. The trigger tube 23 relaxes the end of the anchor nail 18, and the elastic force of the launch spring in the compressed state pushes the anchor nail 18 to shoot out from the launch tube 19 and penetrate into the soft soil structure, which can effectively increase the anti-pulling ability of the multifunctional composite rod 15 and ensure the stability of the flood control wall on the soft soil foundation; when retracting, pull the anchor nail 18 back into the launch tube 19, and then reverse-rotate the multifunctional composite rod 15 to retract it from the soft soil structure.

[0071] In an embodiment of the present invention, a plurality of launch tubes 19 are evenly arranged on the outer wall of the multifunctional composite rod 15, and the tube holes of the launch tubes 19 are arranged at an inclination of 30° downward.

[0072] In an embodiment of the present invention, a limit card slot is arranged at the end of the anchor nail 18, and the end of the trigger tube 23 is elastically provided with a limit buckle. When the anchor nail 18 is retracted into the launch tube 19, the limit buckle is snapped into the limit card slot to fix the anchor nail 18 and prevent it from popping out; when the anchor nail 18 needs to pop out, the manual trigger 22 controls the movement of the trigger tube 23 to disengage the limit buckle from the limit card slot and relax the anchor nail 18.

[0073] In an embodiment of the present invention, a spiral blade 16 is arranged on the outer wall of the multifunctional composite rod 15, which not only increases the anti-pulling ability of the multifunctional composite rod 15 on the soft soil structure; at the same time, the spiral blade 16 can also fix the multifunctional composite rod 15 in the flood control unit.

[0074] For a further optimized solution, the anti-pulling module includes a mechanical claw 20 disposed within the anchor bolt 18. The mechanical claw 20 is elastically connected within the anchor bolt 18 via a connecting spring. A cable 21 is connected to the rear end of the mechanical claw 20. After the anchor bolt 18 pops out into the soft soil structure, the mechanical claw 20 pops out of the anchor bolt 18. When retracting, the mechanical claw 20 and the anchor bolt 18 are sequentially retracted through the cable 21. The anchor bolt 18 is hollow. The mechanical claw 20 is contracted within the hollow and compresses the connecting spring. The end of the mechanical claw 20 is connected to the recovery pull ring 24 via the cable 21, and at the same time, the cable 21 is connected to the anchor bolt 18. When the anchor bolt 18 is launched and penetrates into the soft soil structure, the bottom contact resistance of the anchor bolt 18 causes the conical head to open, and the mechanical claw 20 is ejected by the connecting spring, pushed outside the anchor bolt 18 and unfolded, and caught in the soil layer to form barbs for anchoring, increasing the anchoring property of the anchor bolt 18. When retracting, by pulling the cable 21 through the recovery pull ring 24, the mechanical claw 20 is first pulled back to retract the mechanical claw 20 into the anchor bolt 18. After the mechanical claw 20 is retracted, the cable 21 is tightened with the anchor bolt 18, and the anchor bolt 18 is recovered from the soft soil, retracted into the launch tube 19 and clamped tightly through the limit buckle and the limit slot to achieve fixation, and then the multi-functional composite rod 15 can be retracted.

[0075] For a further optimized solution, the adsorption assembly includes a placement cavity opened within the multi-functional composite rod 15. A vacuum suction cup 25 is installed at the bottom end of the placement cavity. When the flood control unit is fixed on the hard ground, the vacuum suction cup 25 extends out of the placement cavity and adsorbs on the ground. The vacuum suction cup 25 is stored within the placement cavity. A switchable and retractable plate 28 is provided at the bottom end of the multi-functional composite rod 15 to protect the vacuum suction cup 25. When not in use, the retractable plate 28 is in a closed state, and its diameter is equal to the diameter of the bottom end of the composite rod, preventing foundation soil from entering the placement cavity and blocking the vacuum suction cup 25, avoiding the vacuum suction cup 25 being blocked by soil. When in use, the first button 26 is pressed to open the retractable plate 28 around the composite rod, increasing the contact area between the composite rod member and the foundation, increasing the stability of the HDPE frame 1. At the same time, the vacuum suction cup 25 pops out, expelling the air inside the suction cup to form a negative pressure adsorption, enabling the flood control unit to adsorb on the hard ground. When disassembling, the second button 27 is pressed to inject air into the vacuum suction cup 25 to release the adsorption, and at the same time, the retractable plate 28 closes to protect the vacuum suction cup 25 again.

[0076] The present invention also discloses a construction method for a multi-scenario geotechnical flood control wall system for construction, including the following steps:

[0077] Precast flood control units on-site and transport the flood control units to the flood fighting site; precast flood control units in advance at sites such as factories, injection mold the HDPE frame 1, and composite the geotextile composite structure 3 so that the HDPE frame 1 is integrally formed with the ground connection members and the HDPE frame 1. After prefabrication, transport the flood control units to the flood fighting site, which can reduce the on-site construction time and workload and improve the construction efficiency;

[0078] Judge the land conditions, ground environment and flatness at the flood fighting site; after arriving at the flood fighting site, judge the land conditions, ground environment and flatness of the site, and judge whether the soil is soft soil or hard soil, whether there are obstacles, etc., so as to select appropriate fixing and connecting methods according to different situations;

[0079] When the flood fighting ground is a hard ground, the multi-functional composite rod 15 is stored in the flood control unit without extending, and the flood control unit is adsorbed and fixed on the hard ground through the adsorption component; when the flood fighting ground is a hard ground, the multi-functional composite rod 15 is stored in the flood control unit without extending. Using the adsorption component, that is, by pressing button 1 to open the drawable plate 28 at the bottom of the multi-functional composite rod 15, the vacuum suction cup 25 pops out, discharges the air in the suction cup, forms negative pressure and adsorbs on the hard ground to realize the fixation of the flood control unit;

[0080] When the flood fighting ground is a soft soil structure, the multi-functional composite rod 15 extends out of the flood control unit and is inserted into the soft soil ground, and the anti-pulling component is used to increase the stability of the fixation; when the flood fighting ground is a soft soil structure, the multi-functional composite rod 15 extends out of the flood control unit and is inserted into the soft soil ground. Select the anti-pulling component according to the specific situation of the soft soil. For example, press the manual trigger 22 to make the anchor nail 18 in the launching tube 19 pop out. The conical penetration head at the front end of the anchor nail 18 opens after touching the ground, and the hidden four-lobe spring steel mechanical claw 20 inside unfolds and is stuck into the soil layer to form barbs for anchoring, or rotate the rotating handle 17 at the top of the multi-functional composite rod 15 to make the spiral blade 16 screw into the foundation to increase the stability of the anchoring;

[0081] Fix and connect adjacent flood control units in sequence. When the flood fighting ground is flat, adjacent flood control units are connected through the fixed connection component. When the flood fighting ground is inclined, adjacent flood control units are connected through the movable connection component; when the flood fighting ground is flat, adjacent flood control units are connected through the fixed connection component and the movable connection component at the same time. For example, the lug 7 on one HDPE frame 1 is snapped into the fixed card slot 9 on the adjacent HDPE frame 1 to achieve fast and stable connection; when the flood fighting ground is inclined, adjacent flood control units are connected through the movable connection component. First, open the push-pull baffle 6, pull out and unfold the foldable geotextile board 5, and insert the convex block 12 at one end of the foldable geotextile board 5 into the slide rail 10 in the movable card slot 8 of the adjacent HDPE frame 1. Utilize the characteristics that the movable units of the foldable geotextile board 5 are rotationally connected and longitudinally slidable, so that it can adapt to the inclined terrain, and adjacent board units realize vertical displacement along the foundation through the slide rail 10 and the convex block 12 to complete the connection;

[0082] After the flood fighting is completed, unpack and recycle the flood control unit for convenient reuse in the later stage.

[0083] Embodiment 1: Uneven soft soil foundation

[0084] In the factory, the HDPE frame 1 is pre-injected and the geotextile composite structure 3 is laminated. In the uneven soft soil foundation, the prefabricated module unit is hoisted to the designated position. The push-pull baffle 6 is opened, and the foldable geoboard 5 is pulled out and unfolded and connected to the movable card slot 8 of the adjacent HDPE frame 1. The geoboard can be inserted into the foundation successively according to the foundation condition to realize compensating for the ground undulation with the foldable geoboard.

[0085] When the foundation soil is relatively soft, first rotate the handle 17 to extend the multi-functional composite rod 15 out of the flood control unit and insert it into the soft soil structure. Then press the manual trigger 22, and the anchor nail 18 is launched from the launch tube 19, and the nail head is inserted into the soil layer to release the mechanical claw 20 to realize the anchoring of the HDPE frame 1 to the ground. After the flood season, pull the recovery pull ring 24 at the top, the cable 21 tightens and the mechanical claw 20 resets, the anchor nail 18 is pulled out of the foundation, continue to tighten the cable 21 and retract it into the launch tube 19, and reverse-rotate the multi-functional composite rod 15 to retract it from the soft soil structure. Pull out the foldable board from the movable card slot 8, fold the geoboard and put it back into the HDPE frame 1, and close the push-pull baffle 6.

[0086] When the foundation soil is relatively hard, rotate the handle 17 to screw the spiral blade 16 into the foundation to complete the anchoring of the HDPE frame 1 to the ground. After the flood season, rotate the handle 17 counterclockwise. After a "click" sound, it means that the spiral blade 16 has been fully reset. Pull out the foldable board from the movable card slot 8, fold the geoboard and put it back into the HDPE frame 1, and close the push-pull baffle 6.

[0087] Embodiment 2: Hard ground or flat ground

[0088] The prefabricated module unit is hoisted to the designated position. Directly connect the lug 7 and the fixed card slot 9 between the two HDPE frames 1. At the same time, pull out the end of the foldable geoboard 5 until it is flush with the end of the lug 7 and snap it into the movable card slot. Then press the first button 26 once, the pull-out plate 28 opens, and the vacuum suction cup 25 pops out from the multi-functional composite rod 15. Continue to press the first button 26 three times to exhaust the air in the suction cup to form negative pressure adsorption. After the flood season, continuously press the second button 27 twice, the vacuum suction cup 25 releases the adsorption and resets, and pull out the lug 7 from the fixed card slot 9 to realize the disassembly of the flood control unit.

[0089] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0090] The above-described embodiments are only for describing the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A multi-scenario geotechnical flood control wall system, characterized in that, Including: A number of flood control units, the adjacent flood control units are detachably connected, and a geotextile composite structure (3) is attached to the outer wall of the flood control unit; A connecting mechanism, the connecting mechanism can realize the detachable connection between adjacent flood control units; the connecting mechanism includes a fixed connection component and a movable connection component arranged on the flood control unit, and the movable connection component can realize the misaligned connection between adjacent flood control units; A fixing mechanism, the fixing mechanism is used to fix the flood control unit on the ground; the fixing mechanism includes a multi-functional composite rod (15) arranged vertically in the flood control unit, an anti-pulling component for increasing the anti-pulling ability of the multi-functional composite rod (15) in the soft soil structure is arranged on the outer wall of the multi-functional composite rod (15), and an adsorption component for adsorbing on the hard soil structure is arranged at the bottom end of the multi-functional composite rod (15).

2. The multi-scenario geotechnical flood control wall system according to claim 1, wherein: The flood control unit includes an HDPE frame (1), and the geotextile composite structure (3) is attached to the outer wall of the HDPE frame (1).

3. The multi-scenario geotechnical flood control wall system according to claim 2, wherein: A number of stiffening ribs (2) are arranged in the HDPE frame (1) in a staggered manner, and the stiffening ribs (2) abut against and support the inner wall of the geotextile composite structure (3).

4. The multi-scenario geotechnical flood control wall system according to claim 2, wherein: The fixed connection component includes lugs (7) and fixed card slots (9) correspondingly arranged on the HDPE frame (1), the lugs (7) and the fixed card slots (9) are symmetrically arranged on both sides of the HDPE frame (1), and when connecting, the lugs (7) are clamped into the fixed card slots (9) on the adjacent HDPE frame (1).

5. The multi-scenario geotechnical flood control wall system according to claim 2, wherein: The movable connection component includes a foldable geotextile board (5) wound in the HDPE frame (1), one end of the foldable geotextile board (5) extends out of the HDPE frame (1), and when connecting, the foldable geotextile board (5) is clamped into the movable card slot (8) on the adjacent HDPE frame (1).

6. The multi-scenario geotechnical flood control wall system according to claim 5, wherein: The foldable geotextile board (5) includes a number of movable units, the adjacent movable units are rotatably connected and longitudinally slidable; convex blocks (12) and slide rails (10) are respectively arranged on both sides of the movable unit, and when connecting, the convex blocks (12) are inserted into the slide rails (10) and longitudinally slide with the slide rails (10).

7. The multi-scenario geotechnical flood control wall system according to claim 1, characterized in that: The anti-pulling component includes a launching tube (19) obliquely opened downward on the outer wall of the multi-functional composite rod (15), an anchor nail (18) is elastically arranged in the launching tube (19), a launching spring is arranged between the anchor nail (18) and the launching tube (19), and after the multi-functional composite rod (15) is anchored into the soft soil structure, the anchor nail (18) is ejected out of the launching tube (19); an anti-pulling module for increasing the anti-pulling ability is arranged in the anchor nail (18).

8. The multi-scenario geotechnical flood control wall system according to claim 7, wherein: The uplift resistance module includes a mechanical claw (20) disposed within the anchor bolt (18). The mechanical claw (20) is elastically connected within the anchor bolt (18) by a connecting spring. A cable (21) is connected to the rear end of the mechanical claw (20). After the anchor bolt (18) pops out into the soft soil structure, the mechanical claw (20) pops out of the anchor bolt (18). When retracting, the mechanical claw (20) and the anchor bolt (18) are sequentially retracted through the cable (21).

9. The multi-scenario geotechnical flood control wall system according to claim 1, wherein: The adsorption assembly includes a placement cavity opened within the multi-functional composite rod (15). A vacuum suction cup (25) is installed at the bottom end of the placement cavity. When the flood control unit is fixed to the hard ground, the vacuum suction cup (25) extends out of the placement cavity and adsorbs on the ground.

10. A construction method for a multi-scenario geotechnical flood control wall system, which is used for constructing the multi-scenario geotechnical flood control wall system described in any one of claims 1-9, and is characterized in that It includes the following steps: Precast flood control units in the site and transport the flood control units to the flood fighting site; Judge the land conditions, ground environment and flatness of the flood fighting site; When the flood fighting ground is a hard ground, the multi-functional composite rod (15) is stored within the flood control unit without extending, and the flood control unit is adsorbed and fixed to the hard ground through the adsorption assembly; When the flood fighting ground is a soft soil structure, the multi-functional composite rod (15) extends out of the flood control unit and is inserted into the soft soil ground, and the stability of the fixation is increased through the uplift resistance assembly; Fix and connect adjacent flood control units in sequence. When the flood fighting ground is flat, adjacent flood control units are connected through the fixed connection assembly. When the flood fighting ground is inclined, adjacent flood control units are connected through the movable connection assembly.

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