Sludge reclamation foundation reinforcement system and method based on vacuum-preloading combined dynamic compaction

Abstract

The invention discloses a hydraulic reclamation sea silt foundation reinforcing system and method based on vacuum-preloading combined dynamic compaction, and relates to the technical field of soft soil foundation treatment.The hydraulic reclamation sea silt foundation reinforcing system comprises a fixing support, a walking mechanism is arranged on one side of the fixing support, and a foundation dynamic compaction mechanism is arranged at the top of the fixing support; and a humidifying and dust falling mechanism is arranged on the foundation dynamic compaction mechanism. By arranging the foundation dynamic compaction mechanism and the humidifying and dust falling mechanism, raising of dust is effectively reduced, and the problems that when an existing device is used for compacting a soft soil foundation, a large amount of dust is raised under the action of vibration, the air contains a large amount of dust, the body health of constructors is threatened, and the construction cost is reduced are solved. Respiratory diseases, such as pneumoconiosis, are easily caused by long-term inhalation of a large amount of dust, and the surrounding environment is polluted by diffusion of a large amount of dust.

Description

Technical Field

[0001] The present invention relates to the technical field of soft soil foundation treatment, and specifically to a reinforced system and method for reclaimed silt foundation based on vacuum-surcharge preloading combined with dynamic compaction. Background Technique

[0002] In the engineering construction of coastal areas, the treatment of reclaimed silt foundation is a key issue. The reclaimed silt foundation has the characteristics of high water content, large void ratio, low strength and high compressibility. If not effectively treated, it will seriously affect the stability and safety of subsequent projects. At present, common foundation treatment methods include vacuum preloading method, surcharge preloading method and dynamic compaction method, etc.

[0003] The vacuum preloading method requires vertically burying vacuum pipes in the soft soil foundation. Usually, relevant large-scale equipment is used. For example, a drilling machine and an excavator for moving the auxiliary drilling machine are used. The drilling machine is installed on the robotic arm of the excavator. The excavator moves the drilling machine to the soft soil foundation, and then uses the drilling machine to drill holes in the soft soil foundation. Finally, the vacuum pipes are inserted into the drilled holes to complete the insertion of the vacuum pipes in the soft soil foundation. Then, the vacuum pipelines are connected to the vacuum pipes, and then a sealing film is covered, and the vacuum pump is started to form a vacuum environment inside the foundation, and the water in the foundation soil is discharged through the vacuum pipes and vacuum pipelines by using the vacuum suction force for vacuum preloading treatment; the surcharge preloading method is to apply a load on the foundation surface to make the foundation soil gradually consolidate and settle under the action of the load; the dynamic compaction method is to lift a heavy hammer to a certain height by a lifting device, and then let the heavy hammer fall freely to strongly impact the foundation soil to improve the density and strength of the foundation soil. However, these single treatment methods all have certain limitations. For example, the vacuum preloading method has a long treatment time, the surcharge preloading method requires a large amount of surcharge materials, and the dynamic compaction method has limited treatment effect on the soft soil foundation. Therefore, the combined use of vacuum-surcharge preloading and dynamic compaction can efficiently and quickly reinforce the reclaimed silt foundation.

[0004] However, the existing devices have the following deficiencies during use:

[0005] When the existing devices compact the soft soil foundation, a large amount of dust will be raised under the action of vibration, making the air contain a large amount of dust. This will not only pose a threat to the physical health of construction workers, and long-term inhalation of a large amount of dust is likely to cause respiratory diseases such as pneumoconiosis, etc., but also the diffusion of a large amount of dust will pollute the surrounding environment.

[0006] Therefore, we propose a reinforced system and method for reclaimed silt foundation based on vacuum-surcharge preloading combined with dynamic compaction to facilitate the solution of the problems raised above. Summary of the Invention

[0007] The purpose of the present invention is to provide a reinforced system and method for reclamation silt foundation based on vacuum-surcharge preloading combined with dynamic compaction. Through the movable plate driving the mounting plate to move through the first sliding seat, the mounting plate drives the movable seat to slide in the chute through the connecting rod, so that the atomizing nozzles at the bottom of the movable seat move with the movement of the movable plate. When the dynamic compaction hammer compacts the foundation and generates dust, the moving atomizing nozzles can timely spray atomized water vapor to humidify the vicinity of the compaction surface, effectively reducing the raising of dust, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: including a fixed support, a traveling mechanism is arranged on one side of the fixed support, a foundation dynamic compaction mechanism is arranged on the top of the fixed support, and a humidification and dust reduction mechanism is arranged on the foundation dynamic compaction mechanism;

[0009] The foundation dynamic compaction mechanism includes a support frame, the support frame is fixedly connected to the top of the fixed support, two first limit grooves are opened inside the support frame, two first sliding seats are slidably connected inside the two first limit grooves, an activity plate is fixedly connected between the two first sliding seats, and a dynamic compaction hammer is detachably connected to the bottom of the activity plate;

[0010] The humidification and dust reduction mechanism includes two chutes, the two chutes are opened on the top of the fixed support, four movable seats are slidably connected inside the two chutes, two mounting plates are fixedly connected to one side of the two first sliding seats, four connecting rods are hinged between the two mounting plates and the four movable seats, and four atomizing nozzles are installed at the bottom of the four movable seats.

[0011] Preferably, a mounting seat is fixedly connected to the top of the support frame, two fixing plates are fixedly connected to the top of the support frame, two rotating shafts are rotatably connected to both sides of the mounting seat, one ends of the two rotating shafts are rotatably connected to the two fixing plates, and two steel ropes are wound and connected to the outer surfaces of the two rotating shafts.

[0012] Preferably, the ends of the two steel ropes far away from the two rotating shafts are fixedly connected to the activity plate, a double-shaft motor is fixedly installed on the top of the mounting seat, two small gears are fixedly connected to the two output ends of the double-shaft motor, and two large gears are fixedly sleeved on the outer surfaces of the two rotating shafts.

[0013] Preferably, the two large gears are meshed with the two small gears, a through groove is opened on the top of the fixed support, a movable support plate is movably inserted on one side of the support frame and is located below the dynamic compaction hammer, and a water storage tank is installed on one side of the support frame.

[0014] Preferably, a water pump is installed on one side of the support frame, a U-shaped pipe is installed outside the support frame, an input end of the water pump is fixedly communicated with a connecting pipe, one end of the connecting pipe away from the water pump is communicated with the inside of the water storage tank, and an output end of the water pump is fixedly communicated with a delivery pipe.

[0015] Preferably, one end of the delivery pipe away from the water pump is communicated with the inside of the U-shaped pipe, four telescopic pipes are fixedly communicated with the bottom of the U-shaped pipe, and the bottom ends of the four telescopic pipes movably penetrate through the four moving seats and are communicated with the four atomizing nozzles.

[0016] Preferably, an efficient pipe inserting mechanism is arranged on one side of the fixed support;

[0017] The efficient pipe inserting mechanism includes a U-shaped frame, the U-shaped frame is fixedly connected to one side of the fixed support, two second limiting grooves are formed in the inner side of the U-shaped frame, two second sliding seats are slidably connected in the two second limiting grooves, a driving shaft is rotatably connected between the two second sliding seats, two driving gears are fixedly sleeved on the outer surface of the driving shaft, and a rack is fixedly installed on the inner side of the U-shaped frame.

[0018] Preferably, a connecting plate is fixedly connected between the two second sliding seats, a rotating rod is rotatably installed on the connecting plate, two bevel gears are fixedly connected between the top end of the rotating rod and the outer surface of the driving shaft, and the two bevel gears are meshed and connected.

[0019] Preferably, the bottom end of the rotating rod is fixedly connected with a mounting member, a drill rod is clamped and installed at the bottom end of the mounting member, a drill bit is fixedly connected to the bottom end of the drill rod, a servo motor is fixedly installed on one side of one of the second sliding seats, and an output end of the servo motor movably penetrates through one of the second sliding seats and is fixedly connected with the driving shaft.

[0020] A use method of a vacuum-surcharge preloading combined with dynamic compaction dredger fill soft soil foundation reinforcement system includes the following steps:

[0021] Step 1: In the vacuum preloading stage, start the servo motor to drive the driving shaft to rotate, the driving shaft drives the rotating rod to rotate through the bevel gear, so that the drill rod and the drill bit rotate. At the same time, the driving gear on the driving shaft meshes with the rack, driving the second sliding seat to slide in the second limiting groove, realizing the downward movement of the drill rod while rotating for drilling operation. After drilling is completed, then insert the vacuum pipe into the hole. After the pipe inserting preparation work before vacuum preloading is completed, then connect the vacuum pipeline with the vacuum pipe, the vacuum pipeline is connected with the vacuum pump, then lay the sealing film on the surface of the foundation to be reinforced, and conduct strict sealing treatment around. Start the vacuum pump to form a vacuum environment inside the foundation, and use the vacuum suction to discharge the water in the foundation soil through the vacuum pipe and the vacuum pipeline for vacuum preloading treatment;

[0022] Step 2: During the surcharge preloading stage, after the vacuum preloading achieves a certain effect, a bearing plate is laid on the sealed membrane, and the surcharge materials are evenly placed on the bearing plate for surcharge preloading treatment, so that the foundation soil further consolidates and settles, further increasing the effective stress in the foundation soil and accelerating the drainage consolidation process of the soil mass;

[0023] Step 3: During the foundation dynamic compaction stage, when the vacuum preloading and surcharge preloading make the foundation soil reach a certain strength, start the traveling mechanism, move the fixed support to the foundation area to be dynamically compacted, start the double-shaft motor, and the double-shaft motor drives the rotation of the rotating shaft through the meshing transmission of the small gear and the large gear. The steel wire rope wound around the rotating shaft is retracted and released, thereby lifting and lowering the movable plate and the dynamic compaction hammer to perform dynamic compaction on the foundation;

[0024] Step 4: During the humidification and dust reduction stage, during the up and down movement of the dynamic compaction hammer, the movable plate drives the mounting plate to move through the first sliding seat, and the mounting plate drives the movable seat to slide in the chute through the connecting rod, so that the atomizing nozzle at the bottom of the movable seat moves along with the movable plate; at the same time, start the water pump, and the water pump transports the water in the water storage tank through the connecting pipe and the delivery pipe to the U-shaped pipe, and then transmits it to the atomizing nozzle through the telescopic pipe, and sprays atomized water vapor to perform dust reduction treatment on the dust generated by dynamic compaction;

[0025] Step 5: During the operation completion and equipment positioning stage, after the dynamic compaction operation is completed, turn off the double-shaft motor and the water pump, insert the movable support plate into one side of the support frame to support the dynamic compaction hammer, move the equipment to the designated position through the traveling mechanism, clean and maintain the equipment, and make preparations for the next use.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. By setting up a foundation dynamic compaction mechanism and a humidification and dust reduction mechanism, when the dynamic compaction hammer performs dynamic compaction, the movable plate drives the mounting plate to move through the first sliding seat, and the mounting plate drives the movable seat to slide in the chute through the connecting rod, so that the atomizing nozzle at the bottom of the movable seat moves along with the movement of the movable plate. When the dynamic compaction hammer compacts the foundation and generates dust, the moving atomizing nozzle can timely spray atomized water vapor to humidify the vicinity of the compaction surface, effectively reducing the raising of dust, and solving the problem that when the existing device compacts the soft soil foundation, a large amount of dust will be raised under the action of vibration, making the air contain a large amount of dust, which will not only pose a threat to the physical health of construction workers, and long-term inhalation of a large amount of dust is easy to cause respiratory diseases such as pneumoconiosis, but also the diffusion of a large amount of dust will cause pollution to the surrounding environment.

[0028] 2. The present invention is provided with an efficient intubation mechanism. The servo motor drives the drive shaft to rotate. The drive shaft drives the rotating rod to rotate through bevel gears. The rotating rod drives the drill pipe and the drill bit to rotate. At the same time, the drive gear on the drive shaft meshes with the rack, causing the second sliding seat to slide in the second limiting groove, thereby realizing the downward movement of the drill pipe while rotating for drilling operations. After drilling is completed, the vacuum tube can be conveniently inserted into the hole, improving the efficiency and quality of intubation, providing convenience for subsequent vacuum preloading treatment. With the cooperation of the traveling mechanism, the device integrates functions of traveling, drilling, dynamic compaction, and humidification and dust reduction. It does not require a drilling machine for drilling, nor does it require an auxiliary excavator for movement. Compared with the bulky drilling machine and excavator, it is lighter in structure, shortens the construction period, and also achieves the effect of saving economic costs.

[0029] 3. The present invention is provided with a foundation dynamic compaction mechanism. The dual-axis motor drives the rotating shaft to rotate through small gears and large gears, and then the steel wire wound around the rotating shaft is wound and unwound, realizing the up and down movement of the movable plate and the dynamic compaction hammer. By means of motor drive, the lifting and falling of the dynamic compaction hammer can be controlled more precisely. Compared with using a lifting device to lift a heavy hammer to a certain height and then letting the heavy hammer fall freely to strongly impact the foundation soil, the stability and efficiency of the dynamic compaction operation are improved, and the reclamation and silt foundation can be better reinforced. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a three-dimensional view of the main structure of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0031] Figure 2 is a three-dimensional view of the left-side structure of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0032] Figure 3 is a three-dimensional view of the rear-side structure of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0033] Figure 4 is a three-dimensional view of the bottom-side structure of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0034] Figure 5 is a three-dimensional view of the structure in which the movable support plate and the support frame of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention are unfolded;

[0035] Figure 6 is a three-dimensional view of a partial structure of the efficient intubation mechanism of the reclamation and silt foundation reinforcement system and method based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0036] Figure 7Stereoscopic structure diagram of the fixed support in the reinforced system and method for reclamation silt foundation based on vacuum-surcharge preloading combined with dynamic compaction of the present invention;

[0037] Figure 8 In the reinforced system and method for reclamation silt foundation based on vacuum-surcharge preloading combined with dynamic compaction of the present invention Figure 3 Enlarged stereoscopic structure diagram of part A.

[0038] In the figure: 1. Fixed support; 2. Traveling mechanism; 3. Foundation dynamic compaction mechanism; 301. Support frame; 302. Mounting seat; 303. Fixed plate; 304. Rotating shaft; 305. Steel wire rope; 306. Movable plate; 307. Dynamic compaction hammer; 308. Biaxial motor; 309. Small gear; 310. Large gear; 311. First limiting groove; 312. First sliding seat; 313. Through groove; 314. Movable support plate; 4. Humidification and dust reduction mechanism; 401. Chute; 402. Moving seat; 403. Mounting plate; 404. Connecting rod; 405. Atomizing nozzle; 406. Water storage tank; 407. Water pump; 408. U-shaped pipe; 409. Connecting pipe; 410. Delivery pipe; 411. Telescopic pipe; 5. High-efficiency pipe inserting mechanism; 501. U-shaped frame; 502. Second limiting groove; 503. Second sliding seat; 504. Driving shaft; 505. Driving gear; 506. Rack; 507. Rotating rod; 508. Bevel gear; 509. Mounting part; 510. Drill pipe; 511. Drill bit; 512. Servo motor; 513. Connecting plate. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] As Figure 1 - Figure 8 shown, the present invention provides a technical solution: a reinforced system for reclamation silt foundation based on vacuum-surcharge preloading combined with dynamic compaction, including a fixed support 1, a traveling mechanism 2 is arranged on one side of the fixed support 1, a foundation dynamic compaction mechanism 3 is arranged on the top of the fixed support 1, and a humidification and dust reduction mechanism 4 is arranged on the foundation dynamic compaction mechanism 3;

[0041] The dynamic compaction mechanism 3 of the foundation includes a support frame 301, the support frame 301 is fixedly connected to the top of the fixed support 1, two first limiting grooves 311 are opened inside the support frame 301, two first sliding seats 312 are slidably connected inside the two first limiting grooves 311, a movable plate 306 is fixedly connected between the two first sliding seats 312, and a dynamic compaction hammer 307 is detachably connected to the bottom of the movable plate 306;

[0042] The humidification and dust reduction mechanism 4 includes two sliding grooves 401, the two sliding grooves 401 are opened on the top of the fixed support 1, four moving seats 402 are slidably connected inside the two sliding grooves 401, two mounting plates 403 are fixedly connected to one side of the two first sliding seats 312, and four connecting rods 404 are hinged between the two mounting plates 403 and the four moving seats 402, and four atomizing nozzles 405 are installed at the bottoms of the four moving seats 402.

[0043] As Figure 7 and Figure 8 shown, a mounting seat 302 is fixedly connected to the top of the support frame 301, two fixing plates 303 are fixedly connected to the top of the support frame 301, two rotating shafts 304 are rotatably connected to both sides of the mounting seat 302, one ends of the two rotating shafts 304 are rotatably connected to the two fixing plates 303, and two steel ropes 305 are wound and connected to the outer surfaces of the two rotating shafts 304. The rotating shafts 304 are stably supported by the mounting seat 302 and the fixing plates 303, so that the rotation of the rotating shafts 304 is more stable and reliable, ensuring the smoothness of the winding and release processes of the steel ropes 305. Furthermore, it is ensured that the movable plate 306 and the dynamic compaction hammer 307 will not shake or deviate during the up and down movement, improving the accuracy and safety of the dynamic compaction operation.

[0044] As Figure 7 and Figure 8 shown, one ends of the two steel ropes 305 away from the two rotating shafts 304 are fixedly connected to the movable plate 306. A double-shaft motor 308 is fixedly installed on the top of the mounting seat 302. Two small gears 309 are fixedly connected to the two output ends of the double-shaft motor 308. Two large gears 310 are fixedly sleeved on the outer surfaces of the two rotating shafts 304. The double-shaft motor 308 transmits power to the rotating shafts 304 through the meshing transmission of the small gears 309 and the large gears 310, making the rotating shafts 304 rotate synchronously, ensuring the stable lifting and lowering of the movable plate 306 and the dynamic compaction hammer 307, further improving the stability and efficiency of the dynamic compaction operation. At the same time, it is also convenient to flexibly adjust the lifting height and descending speed of the dynamic compaction hammer 307 according to different foundation reinforcement requirements.

[0045] As Figure 3 、 Figure 7 and Figure 8As shown, two large gears 310 are meshed and connected with two small gears 309. A through groove 313 is formed at the top of the fixed bracket 1. A movable support plate 314 is movably inserted on one side of the support frame 301, and the movable support plate 314 is located below the dynamic compaction hammer 307. A water storage tank 406 is installed on one side of the support frame 301. The setting of the through groove 313 provides space for the up and down movement of the dynamic compaction hammer 307, avoiding interference between the dynamic compaction hammer 307 and the fixed bracket 1. The movable support plate 314 can support the dynamic compaction hammer 307 when dynamic compaction operation is not carried out, preventing the dynamic compaction hammer 307 from accidentally falling due to gravity, and ensuring the safety of the equipment and personnel. The water storage tank 406 provides water source for the humidifying and dust-removing mechanism 4, ensuring that the atomizing nozzles 405 can continuously and stably spray atomized water vapor, providing guarantee for the realization of the dust-removing function.

[0046] As Figure 3 and Figure 4 shown, a water pump 407 is installed on one side of the support frame 301. A U-shaped pipe 408 is installed on the outside of the support frame 301. The input end of the water pump 407 is fixedly communicated with a connecting pipe 409, and one end of the connecting pipe 409 away from the water pump 407 is communicated with the inside of the water storage tank 406. The output end of the water pump 407 is fixedly communicated with a delivery pipe 410. Using the water pump 407 as the power source, the water in the water storage tank 406 can be stably delivered to the U-shaped pipe 408 through the connecting pipe 409 and the delivery pipe 410, realizing the directional transmission of water, ensuring the continuity and stability of the water supply of the humidifying and dust-removing mechanism 4, so as to ensure that the atomizing nozzles 405 can work continuously during the dynamic compaction operation and continuously and effectively remove dust.

[0047] As Figure 2 、 Figure 3 and Figure 4 shown, one end of the delivery pipe 410 away from the water pump 407 is communicated with the inside of the U-shaped pipe 408. Four telescopic pipes 411 are fixedly communicated with the bottom of the U-shaped pipe 408. The bottom ends of the four telescopic pipes 411 movably penetrate through the four moving seats 402 and are communicated with the four atomizing nozzles 405. The U-shaped pipe 408 plays a role of flow splitting and buffering, enabling the water flow to be evenly distributed to the four telescopic pipes 411; the telescopic pipes 411 can expand and contract as the moving seats 402 slide. On the premise of not affecting the normal sliding of the moving seats 402, it ensures the unobstructed transmission of water flow to the atomizing nozzles 405, ensuring that the atomizing nozzles 405 can always stably spray atomized water vapor during the movement following the movable plate 306, effectively improving the dust-removing effect.

[0048] As Figure 1 and Figure 6As shown in the figure, an efficient intubation mechanism 5 is provided on one side of the fixed bracket 1. The efficient intubation mechanism 5 includes a U-shaped frame 501. The U-shaped frame 501 is fixedly connected to one side of the fixed bracket 1. Two second limiting grooves 502 are opened inside the U-shaped frame 501. Two second sliding seats 503 are slidably connected in the two second limiting grooves 502. A drive shaft 504 is rotatably connected between the two second sliding seats 503. Two drive gears 505 are fixedly sleeved on the outer surface of the drive shaft 504. A rack 506 is fixedly installed inside the U-shaped frame 501. The U-shaped frame 501 provides a stable installation foundation for the efficient intubation mechanism 5; the second limiting grooves 502 play a role in limiting and guiding the sliding of the second sliding seats 503, so that the second sliding seats 503 maintain linear motion during the sliding process, ensuring the accuracy of the drilling direction of the drill rod 510; the meshing transmission between the drive gear 505 and the rack 506 converts the rotation of the drive shaft 504 into the linear motion of the second sliding seats 503, realizing the function of the drill rod 510 rotating and moving downward at the same time. Compared with the traditional drilling method, this transmission method has a compact structure and high transmission efficiency, improving the stability and efficiency of the drilling operation.

[0049] As Figure 6 shown, a connecting plate 513 is fixedly connected between the two second sliding seats 503. A rotating rod 507 is rotatably installed on the connecting plate 513. Two bevel gears 508 are fixedly connected between the top end of the rotating rod 507 and the outer surface of the drive shaft 504. The two bevel gears 508 are meshed and connected. The connecting plate 513 connects the two second sliding seats 503 into a whole, enhancing the structural stability; the bevel gear 508 transmission can realize the vertical power transmission between the drive shaft 504 and the rotating rod 507, converting the horizontal rotation of the drive shaft 504 into the vertical rotation of the rotating rod 507, thereby driving the drill rod 510 and the drill bit 511 to rotate, enabling the drilling operation to proceed smoothly. This transmission method occupies less space and is suitable for equipment structures with limited space. At the same time, it also improves the accuracy of power transmission.

[0050] As Figure 6 shown, the bottom end of the rotating rod 507 is fixedly connected with a mounting part 509. The bottom end of the mounting part 509 is snap-fitted with a drill rod 510. The bottom end of the drill rod 510 is fixedly connected with a drill bit 511. A servo motor 512 is fixedly installed on one side of one of the second sliding seats 503. The output end of the servo motor 512 movably penetrates through one of the second sliding seats 503 and is fixedly connected with the drive shaft 504. The snap-fitting installation method of the mounting part 509 and the drill rod 510 facilitates the quick replacement and installation of the drill rod 510. According to different geological conditions and drilling requirements, the appropriate drill rod 510 and drill bit 511 can be flexibly replaced; the servo motor 512 can accurately control the rotation speed and rotation angle of the drive shaft 504, thereby accurately controlling the drilling depth and speed of the drill rod 510, improving the accuracy and quality of the drilling operation, and providing a guarantee for the smooth insertion of the subsequent vacuum tube.

[0051] Usage method and working principle of this device: During the vacuum preloading stage, start the traveling mechanism 2, move the fixed support 1 to the dredged reclamation foundation area to be treated, start the servo motor 512, the servo motor 512 drives the drive shaft 504 to rotate, the drive shaft 504 drives the rotating rod 507 to rotate through the bevel gear 508, so that the drill pipe 510 and the drill bit 511 rotate. At the same time, the drive gear 505 on the drive shaft 504 meshes with the rack 506, driving the second sliding seat 503 to slide in the second limiting groove 502, realizing the downward movement of the drill pipe 510 while rotating for drilling operations. After the drilling is completed, start the servo motor 512 to reverse, so that the drill pipe 510 is withdrawn from the hole, then insert the vacuum pipe into the hole. After completing the pipe insertion preparation work before vacuum preloading, then connect the vacuum pipeline to the vacuum pipe, the vacuum pipeline is connected to the vacuum pump, and then lay the sealing film on the surface of the foundation to be reinforced, and conduct strict sealing treatment around. Start the vacuum pump to form a vacuum environment inside the foundation, and use the vacuum suction to discharge the water in the foundation soil through the vacuum pipe and the vacuum pipeline for vacuum preloading treatment.

[0052] During the surcharge preloading stage, after the vacuum preloading reaches a certain effect, lay the bearing plate on the sealing film, evenly place the surcharge materials on the bearing plate, and conduct surcharge preloading treatment to further consolidate and settle the foundation soil, further increase the effective stress in the foundation soil, and accelerate the drainage consolidation process of the soil mass.

[0053] During the dynamic compaction of the foundation stage, when the vacuum preloading and surcharge preloading make the foundation soil reach a certain strength, start the traveling mechanism 2, move the fixed support 1 to the foundation area to be dynamically compacted, start the double-shaft motor 308, the double-shaft motor 308 drives the rotating shaft 304 to rotate through the meshing transmission of the small gear 309 and the large gear 310, and the steel wire rope 305 wound around the rotating shaft 304 is retracted and released, so as to lift and lower the movable plate 306 and the dynamic compaction hammer 307 to conduct dynamic compaction operations on the foundation.

[0054] During the humidification and dust reduction stage, during the up and down movement of the dynamic compaction hammer 307, the movable plate 306 drives the mounting plate 403 to move through the first sliding seat 312, the mounting plate 403 drives the movable seat 402 to slide in the chute 401 through the connecting rod 404, so that the atomizing nozzle 405 at the bottom of the movable seat 402 moves along with the movable plate 306; at the same time, start the water pump 407, the water pump 407 transports the water in the water storage tank 406 to the U-shaped pipe 408 through the connecting pipe 409 and the delivery pipe 410, and then transmits it to the atomizing nozzle 405 through the telescopic pipe 411 to spray atomized water vapor to conduct dust reduction treatment on the dust generated by dynamic compaction.

[0055] During the operation completion and equipment reset stage, after the dynamic compaction operation is completed, turn off the double-shaft motor 308 and the water pump 407. Insert the movable support plate 314 into one side of the support frame 301 to support the dynamic compaction hammer 307. Move the equipment to the designated position through the traveling mechanism 2, and clean and maintain the equipment to prepare for the next use.

[0056] 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 perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydraulic reclamation and sea silt foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction, characterized in that: It comprises a fixed support (1), a walking mechanism (2) is arranged on one side of the fixed support (1), a foundation compaction mechanism (3) is arranged on the top of the fixed support (1), and a humidification and dust reduction mechanism (4) is arranged on the foundation compaction mechanism (3); The foundation compaction mechanism (3) comprises a support frame (301), the support frame (301) is fixedly connected to the top of the fixed support (1), two first limiting grooves (311) are provided on the inner side of the support frame (301), two first sliding seats (312) are slidably connected to the inner sides of the two first limiting grooves (311), a movable plate (306) is fixedly connected between the two first sliding seats (312), and a compaction hammer (307) is detachably connected to the bottom of the movable plate (306); The humidifying and dust reduction mechanism (4) comprises two slide grooves (401), the two slide grooves (401) are opened at the top of the fixed bracket (1), four movable seats (402) are slidably connected in the two slide grooves (401), two mounting plates (403) are fixedly connected to one side of the two first slide seats (312), four connecting rods (404) are hinged between the two mounting plates (403) and the four movable seats (402), and four atomizing nozzles (405) are installed at the bottom of the four movable seats (402).

2. The land reclamation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 1 is characterized in that: The top of the support frame (301) is fixedly connected to a mounting seat (302), the top of the support frame (301) is fixedly connected to two fixing plates (303), two rotating shafts (304) are rotatably connected to the two sides of the mounting seat (302), one end of the two rotating shafts (304) is rotatably connected to the two fixing plates (303), and the outer surfaces of the two rotating shafts (304) are wound and connected to two steel ropes (305).

3. The land reclamation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 2 is characterized by: One end of the two steel ropes (305) away from the two rotating shafts (304) is fixedly connected to the movable plate (306), a dual-axis motor (308) is fixedly installed on the top of the mounting seat (302), two output ends of the dual-axis motor (308) are fixedly connected to two small gears (309), and two large gears (310) are fixedly sleeved on the outer surfaces of the two rotating shafts (304).

4. The land reclamation and siltation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 3 is characterized by: The two large gears (310) are meshedly connected with the two small gears (309); a through slot (313) is provided on the top of the fixed bracket (1); a movable support plate (314) is movably inserted on one side of the support frame (301), and the movable support plate (314) is located below the tamping hammer (307); and a water storage tank (406) is installed on one side of the support frame (301).

5. The hydraulic reclamation and sea siltation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 4 is characterized in that: A water pump (407) is installed on one side of the support frame (301), a U-shaped tube (408) is installed on the outer side of the support frame (301), an input end of the water pump (407) is fixedly connected to a connecting tube (409), an end of the connecting tube (409) away from the water pump (407) is connected to the inside of the water storage tank (406), and an output end of the water pump (407) is fixedly connected to a delivery tube (410).

6. The hydraulic reclamation and silting foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 5 is characterized in that: One end of the delivery pipe (410) away from the water pump (407) is connected to the inside of the U-shaped pipe (408), and the bottom of the U-shaped pipe (408) is fixedly connected to four telescopic pipes (411), and the bottom ends of the four telescopic pipes (411) are movably passed through four movable seats (402) and are connected to four atomizing nozzles (405).

7. The hydraulic reclamation and siltation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 1 is characterized in that: A high-efficiency intubation mechanism (5) is provided on one side of the fixed bracket (1); The efficient intubation mechanism (5) comprises a U-shaped frame (501), wherein the U-shaped frame (501) is fixedly connected to one side of the fixed bracket (1), and two second limiting grooves (502) are provided on the inner side of the U-shaped frame (501), and two second slide seats (503) are slidably connected in the two second limiting grooves (502), and a driving shaft (504) is rotatably connected between the two second slide seats (503), and two driving gears (505) are fixedly sleeved on the outer surface of the driving shaft (504), and a rack (506) is fixedly installed on the inner side of the U-shaped frame (501).

8. The hydraulic reclamation and siltation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction according to claim 7 is characterized in that: A connecting plate (513) is fixedly connected between the two second slide seats (503), a rotating rod (507) is rotatably mounted on the connecting plate (513), and two bevel gears (508) are fixedly connected at the top end of the rotating rod (507) and the outer surface of the driving shaft (504), and the two bevel gears (508) are meshingly connected.

9. The system for strengthening the sea reclamation foundation based on vacuum-loading preloading combined with dynamic compaction according to claim 8 is characterized in that: The bottom end of the rotating rod (507) is fixedly connected to a mounting member (509), the bottom end of the mounting member (509) is clamped with a drill rod (510), the bottom end of the drill rod (510) is fixedly connected to a drill bit (511), a servo motor (512) is fixedly installed on one side of one of the second slide seats (503), the output end of the servo motor (512) movably passes through one of the second slide seats (503) and is fixedly connected to the drive shaft (504).

10. The method for using the vacuum-loading preloading combined with dynamic compaction system for sea reclamation foundation reinforcement is characterized by: The hydraulic reclamation and siltation foundation reinforcement system based on vacuum-loading preloading combined with dynamic compaction as described in any one of claims 1 to 9 comprises the following steps: S1: vacuum preloading stage, the servo motor (512) is started to drive the driving shaft (504) to rotate, and the driving shaft (504) drives the rotating rod (507) to rotate through the bevel gear (508), so that the drill rod (510) and the drill bit (511) rotate. At the same time, the driving gear (505) on the driving shaft (504) is meshed with the rack (506), driving the second slide seat (503) to slide in the second limit groove (502), so that the drill rod (510) rotates and moves downward to perform the drilling operation. After the drilling is completed, the vacuum tube is inserted into the hole. After the intubation preparation work before vacuum preloading is completed, the vacuum pipeline is then connected to the vacuum tube, and the vacuum pipeline is connected to the vacuum pump. Then, the sealing film is laid on the surface of the foundation to be reinforced, and a strict sealing treatment is performed on all sides. The vacuum pump is started to form a vacuum environment inside the foundation, and the moisture in the foundation soil is discharged through the vacuum tube and the vacuum pipeline by vacuum suction, and the vacuum preloading treatment is performed; S2: Load preloading stage: after the vacuum preloading reaches a certain effect, a bearing plate is laid on the sealing membrane, and the load material is evenly placed on the bearing plate for load preloading treatment, so that the foundation soil is further consolidated and settled, the effective stress in the foundation soil is further increased, and the drainage and consolidation process of the soil is accelerated; S3: foundation compaction stage, when the vacuum preloading and the pile load preloading make the foundation soil reach a certain strength, the walking mechanism (2) is started, the fixed support (1) is moved to the foundation area to be compacted, and the double-axis motor (308) is started. The double-axis motor (308) drives the rotating shaft (304) to rotate through the meshing transmission of the small gear (309) and the large gear (310), and the steel rope (305) wound on the rotating shaft (304) is retracted and released, thereby lifting and lowering the movable plate (306) and the compaction hammer (307), and the foundation is compacted; S4: Humidification and dust reduction stage, during the up and down movement of the tamping hammer (307), the movable plate (306) drives the mounting plate (403) to move via the first slide seat (312), and the mounting plate (403) drives the movable seat (402) to slide in the slide groove (401) via the connecting rod (404), so that the atomizing nozzle (405) at the bottom of the movable seat (402) moves with the movable plate (306); at the same time, the water pump (407) is started, and the water pump (407) transports the water in the water storage tank (406) to the U-shaped tube (408) through the connecting pipe (409) and the delivery pipe (410), and then transmits it to the atomizing nozzle (405) through the telescopic pipe (411), and sprays atomized water vapor to perform dust reduction treatment on the dust generated by the tamping; S5: Operation completion and equipment return stage: After the compaction operation is completed, the dual-axis motor (308) and the water pump (407) are turned off, the movable support plate (314) is inserted into one side of the support frame (301), the compaction hammer (307) is supported, and the equipment is moved to the designated position through the walking mechanism (2), and the equipment is cleaned and maintained to prepare for the next use.

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