A soft soil vibration drainage device with variable frequency control and spiral perforated blades

Abstract

The application relates to a soft soil vibration drainage device with frequency conversion control and spiral opening blades, relates to the technical field of soft soil testing and foundation treatment, and comprises a rack assembly, a drainage assembly and a vibration assembly, the rack assembly comprises a rectangular frame and a top rack fixedly connected to the upper surface of the rectangular frame. The application is provided with the rack assembly, the electric push rod, the outer cylinder, the spiral blade, the drainage hole and the strip hole structure. In operation, the electric push rod drives the connecting plate and the connecting column to move downward, so that the outer cylinder and the spiral blade synchronously enter the soft soil layer. In the process that the spiral blade rotates and extrudes the soil body, the drainage hole can directly release the pore water pressure accumulated around the blade. The strip hole cooperates with the hollow rotating rod to form a through water inlet channel, cooperates with the limiting effect of the outer cylinder, and enables the internal water of the soil body to quickly gather and enter the drainage channel. The application fundamentally solves the problems that the traditional vibration drainage device is easy to form a high-pressure closed area and the drainage is not smooth, and significantly improves the soft soil drainage rate and the consolidation efficiency.

Description

Technical Field

[0001] This invention relates to the field of soft soil testing and foundation treatment, and in particular to a soft soil vibration drainage device with frequency conversion control and spiral perforated blades. Background Technology

[0002] In the construction of soft soil foundations, due to the characteristics of soft soil such as high compressibility, low permeability and low strength, drainage consolidation treatment is often required to improve the bearing capacity of the foundation.

[0003] Traditional vibratory drainage devices often use screw drills in conjunction with helical blades for drainage operations. However, in actual use, the following problems exist: During the vibratory drainage process, when the helical blades rotate and compress the soil, excessively high pore water pressure is easily formed around the blades, making it difficult for water to flow out and affecting drainage efficiency; existing devices mostly use a fixed vibration frequency, which cannot be adjusted in real time according to the soil condition, resulting in low vibration energy utilization and unstable drainage effect; after drainage, the internal structure of the soil is prone to uneven settlement, and there is a lack of means to control the soil structure after drainage.

[0004] To further optimize drainage efficiency and soil reinforcement effect, a soft soil vibration drainage device with frequency conversion control and spiral perforated blades is proposed. Summary of the Invention

[0005] Technical problems to be solved

[0006] The purpose of this application is to provide a soft soil vibration drainage device with frequency conversion control and spiral perforated blades. By optimizing the spiral blade structure and introducing a frequency conversion control mechanism, the problem of pore pressure accumulation during vibration drainage is improved, thereby increasing drainage efficiency and soil reinforcement effect.

[0007] The soft soil vibration drainage device with frequency conversion control and helical perforated blades provided in this application adopts the following technical solution: A soft soil vibration drainage device with frequency conversion control and helical perforated blades includes a frame assembly, a drainage assembly, and a vibration assembly. The frame assembly includes a rectangular frame and a top frame fixedly connected to the upper surface of the rectangular frame. An electric push rod is fixedly connected to the top of the top frame. A connecting plate is fixedly connected to the output end of the electric push rod. Multiple connecting columns are fixedly connected to the bottom surface of the connecting plate. The drainage assembly includes an annular water tank. The vibration assembly includes an outer cylinder fixedly connected to the bottom surface of the annular water tank.

[0008] A water pump is installed inside the annular water tank. The input end of the water pump is connected to a water suction pipe. A first sealed bearing is installed on the inner wall of the input end of the water suction pipe. A second sealed bearing is installed on the inner top wall of the outer cylinder. A rotatable hollow rotating rod is installed on the inner wall of the second sealed bearing. The top end of the hollow rotating rod is fitted inside the first sealed bearing. A helical blade is fixedly connected to the outer surface of the hollow rotating rod. The outer surface of the helical blade has evenly distributed drainage holes. The outer surface of the hollow rotating rod has evenly distributed strip-shaped holes. Multiple pore pressure sensors and stress sensors are installed on both sides of the inner wall of the outer cylinder.

[0009] By adopting the above technical solution, the frame assembly provides a stable support foundation for the overall device. The electric push rod can drive the connecting plate and connecting column to move up and down, thereby controlling the soil penetration depth of the drainage and vibration components to adapt to different soft soil layer thicknesses. The annular water tank descends synchronously with the vibration component, which can collect the pore water drawn up from the hollow rotating rod in a timely manner. The outer cylinder, as a protective casing, is directly inserted into the soft soil. The drainage holes on the spiral blades release local excess pore water pressure during the rotation and compression process, avoiding the formation of a high-pressure closed zone around the spiral blades. The strip-shaped holes on the outer surface of the hollow rotating rod further increase the water inlet channel, working in synergy with the drainage holes to significantly improve drainage efficiency. The pore pressure sensor and stress sensor are installed on both sides of the inner wall of the outer cylinder, respectively, which can obtain pore water pressure and total stress data at the same depth section, providing a basis for subsequent frequency conversion control, thereby realizing accurate monitoring and intelligent adjustment of the soft soil drainage and reinforcement process.

[0010] Preferably, the upper surface of the annular water tank is fixedly connected to the bottom surface of a plurality of connecting columns, the output end of the water pump is connected to the interior of the annular water tank, and an external drain pipe is installed on the outer surface of the annular water tank.

[0011] By adopting the above technical solution, the water pump can stably transport the extracted pore water to the annular water tank for temporary storage, and then discharge it to the work area through the external drainage pipe, avoiding water backflow into the soft soil foundation, effectively blocking the circulation problem of drainage and seepage, and improving the continuity and effectiveness of drainage operations.

[0012] Preferably, two symmetrical reinforcing plates are fixedly connected to the outer surface of the water pumping pipe, and the ends of the two reinforcing plates that are far apart from each other are fixedly connected to the inner wall of the annular water tank.

[0013] By adopting the above technical solution, two symmetrically arranged reinforcing plates fix the outer surface of the pumping pipe to the inner wall of the annular water tank, effectively enhancing the stability of the pumping pipe outside the annular water tank. Since the vibration assembly generates continuous high-frequency vibration during operation, the pumping pipe is prone to swaying or loosening of the joints. The addition of the reinforcing plates makes the pumping pipe and the annular water tank form a rigid whole, preventing pipe rupture or seal failure caused by vibration and improving long-term operational reliability.

[0014] Preferably, a rubber column is fixedly connected to the upper surface of the outer cylinder, and the top end of the rubber column is fixedly connected to the outer surface of the water pumping pipe.

[0015] By adopting the above technical solution, the rubber column connects the upper surface of the outer cylinder and the outer surface of the pumping pipe, serving as a flexible support and buffer for vibration absorption. During operation, the high-frequency excitation force generated by the device is transmitted upwards through the outer cylinder. If the pumping pipe were rigidly connected to the outer cylinder, fatigue fracture would easily occur. The rubber column absorbs some of the vibration energy through its own elastic deformation, while allowing for slight relative displacement between the pumping pipe and the outer cylinder, thus extending the equipment's service life.

[0016] Preferably, the helical blades are located inside the outer cylinder, and multiple pore pressure sensors and multiple stress sensors are symmetrically distributed on the inner wall of the outer cylinder;

[0017] By adopting the above technical solution, the helical blades are located entirely inside the outer cylinder, ensuring that the squeezing and drainage effects during helical blade rotation are concentrated within the soil column enclosed by the outer cylinder, preventing energy dissipation outwards. Multiple pore pressure sensors and stress sensors are symmetrically distributed on both sides of the inner wall of the outer cylinder, eliminating measurement deviations caused by unilateral installation and accurately reflecting the average pore pressure and total stress distribution across the entire cross-section. This symmetrical layout also allows the control system to independently determine the reinforcement status of soil layers at different depths, providing a data foundation for layered frequency conversion control.

[0018] Preferably, the hollow rotating rod is connected to the water pumping pipe through a first sealed bearing, and a filter screen is fixedly connected to the inner wall of the hollow rotating rod;

[0019] By adopting the above technical solution, the hollow rotating rod is connected to the pumping pipe through the first sealed bearing, achieving a dynamic seal between the rotating component and the stationary pipeline. This ensures smooth water flow while preventing mud leakage. The filter screen fixedly connected to the inner wall of the hollow rotating rod can prevent large particles of sand or gravel or plant roots in the soft soil from entering the pumping pipe and pump, thus avoiding damage to the pump.

[0020] Preferably, two symmetrical vibrators are fixedly connected to the upper surface of the outer cylinder, and a servo motor is fixedly connected to the upper surface of the outer cylinder;

[0021] By adopting the above technical solution, the vibrator is fixedly installed on the upper surface of the outer cylinder, which can transmit the vibration force evenly to the interior of the soft soil. The servo motor is set independently to achieve separate supply of rotational power, realizing complete decoupling of vibration and rotational power. This is different from the traditional integrated machine structure and improves the accuracy of power control.

[0022] Preferably, a small sprocket is fixedly connected to the output end of the servo motor, a large sprocket is fixedly connected to the outer surface of the hollow rotating rod, a chain is provided on the outside of the small sprocket, and the small sprocket and the large sprocket are connected by chain drive.

[0023] By adopting the above technical solution, the small sprocket on the output shaft of the servo motor drives the large sprocket on the hollow rotating rod to rotate via a chain, achieving smooth speed reduction and torque increase transmission. The sprocket and chain drive method is not sensitive to mud, water, or dust at soft soil construction sites; even if a small amount of mud splashes in, slippage or jamming is unlikely. The chain has a certain degree of flexibility, preventing the servo motor from directly bearing severe vibration.

[0024] Preferably, a controller is fixedly connected to the outer surface of the top frame, and the controller integrates a frequency conversion control module. The electrical components inside the frame assembly, drainage assembly, and vibration assembly are all electrically connected to the controller.

[0025] By adopting the above technical solution, the controller can centrally receive sensor monitoring data and uniformly regulate the working status of electric push rod, water pump, vibrator and servo motor. The controller has a built-in frequency conversion control module, which can adjust the frequency of the vibrator and the speed of the servo motor according to the pore pressure and stress data fed back by the sensor, so that the device always works in the best drainage state and avoids energy waste or pore pressure accumulation caused by blind vibration.

[0026] Preferably, casters are installed at the four corners of the bottom surface of the rectangular frame, anchor cones are threaded at the four corners of the top surface of the rectangular frame, and reinforcing plates are welded at the corners of the top frame.

[0027] By adopting the above technical solutions, the omnidirectional wheel lifting device is highly mobile, the anchoring cone can fix the rectangular frame in the work site to prevent vibration from causing the device to shift, and the reinforcing plate strengthens the top frame structure to prevent long-term vibration from causing frame deformation, thus taking into account the device's ease of movement, operational stability, and structural durability.

[0028] Beneficial effects

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] This invention provides a vibratory drainage device for soft soil with frequency conversion control and spiral perforated blades. It comprises a frame assembly, an electric push rod, an outer cylinder, spiral blades, drainage holes, and a strip-shaped hole structure. During operation, the electric push rod drives the connecting plate and connecting column downwards, allowing the outer cylinder and spiral blades to simultaneously enter the soft soil layer. As the spiral blades rotate and compress the soil, the drainage holes directly release the pore water pressure accumulated around the blades. The strip-shaped holes, combined with the hollow rotating rod, form a through-type water inlet channel. Combined with the confinement effect of the outer cylinder, this allows water inside the soil to quickly accumulate and enter the drainage channel. This fundamentally solves the problems of traditional vibratory drainage devices that easily form high-pressure closed zones and poor drainage, significantly improving the drainage rate and consolidation efficiency of soft soil.

[0031] This invention provides a soft soil vibration drainage device with frequency conversion control and spiral perforated blades. By setting up a structure of vibrator, servo motor, small sprocket, large sprocket, chain, pore pressure sensor, stress sensor and controller, the vibration drive and rotation drive are separated. The vibrator is fixed to the upper surface of the outer cylinder to provide stable excitation force. The servo motor independently drives the hollow rotating rod to rotate through sprocket and chain transmission. The pore pressure sensor and stress sensor collect soil parameters and transmit them to the controller. The controller has a built-in frequency conversion module that dynamically adjusts the vibration frequency and rotation speed according to the data, so that the device always matches the real-time state of the soil, avoids energy waste and abnormal rise in pore pressure, realizes intelligent control of the entire drainage and reinforcement process, and improves the uniformity and compaction of soil reinforcement.

[0032] This invention provides a soft soil vibration drainage device with frequency conversion control and spiral perforated blades. It comprises a water pump, a pumping pipe, a first sealed bearing, an annular water tank, a filter screen, rubber columns, and a reinforcing plate. The water pump is connected to a hollow rotating rod via the pumping pipe. The first sealed bearing provides dynamic sealing between the rotating and stationary components. The filter screen prevents soil particles from entering the water pump. The reinforcing plate enhances the installation stability of the pumping pipe. The rubber columns absorb vibration transmission. The water pump delivers water to the annular water tank for temporary storage and then discharges it through an external drain pipe. This effectively prevents water backflow and pipeline damage, ensuring long-term continuous and stable operation of the device, while also improving the cleanliness of the construction site and extending the equipment's lifespan. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0034] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0035] Figure 3 This is a partial top view of the first structure of the present invention;

[0036] Figure 4 This is a partial top view of the second structure of the present invention;

[0037] Figure 5This is a partial cross-sectional view of the first structure of the present invention, viewed from below.

[0038] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0039] Figure 7 This is a partial cross-sectional view of the second structure of the present invention, viewed from below.

[0040] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at point B.

[0041] The components include: 1. Frame assembly; 101. Rectangular frame; 102. Top frame; 103. Electric push rod; 104. Connecting plate; 105. Connecting column; 2. Drainage assembly; 201. Annular water tank; 202. Water pump; 203. Pumping pipe; 204. First sealed bearing; 205. Reinforcing plate; 206. Rubber column; 207. External drain pipe; 3. Vibration assembly; 301. Outer cylinder; 302. Second sealed bearing; 303. Hollow rotating rod; 304. Spiral blade; 305. Drainage hole; 306. Strip hole; 307. Pore pressure sensor; 308. Stress sensor; 309. Filter screen; 310. Vibrator; 311. Servo motor; 312. Small sprocket; 313. Large sprocket; 314. Chain; 4. Controller; 5. Universal wheel; 6. Anchor cone; 7. Reinforcing plate. Detailed Implementation

[0042] The following is in conjunction with the appendix Figure 1 - Appendix Figure 8 This application will be described in further detail below.

[0043] Example 1: A vibratory drainage device for soft soil with frequency conversion control and spiral perforated blades, referring to... Figure 1 , Figure 3 , Figure 5 and Figure 6The system includes a frame assembly 1, a drainage assembly 2, and a vibration assembly 3. The frame assembly 1 includes a rectangular frame 101 and a top frame 102 fixedly connected to the upper surface of the rectangular frame 101. An electric push rod 103 is fixedly connected to the top of the top frame 102, and a connecting plate 104 is fixedly connected to the output end of the electric push rod 103. Multiple connecting posts 105 are fixedly connected to the bottom surface of the connecting plate 104. The drainage assembly 2 includes an annular water tank 201, and the upper surface of the annular water tank 201 is fixedly connected to the bottom surface of the multiple connecting posts 105. The vibration assembly 3 includes an outer cylinder 301 fixedly connected to the bottom surface of an annular water tank 201. A water pump 202 is installed inside the annular water tank 201. The input end of the water pump 202 is connected to a water pumping pipe 203. A first sealed bearing 204 is installed on the inner wall of the input end of the water pumping pipe 203. A second sealed bearing 302 is installed on the inner top wall of the outer cylinder 301. A rotatable hollow rotating rod 303 is installed on the inner wall of the second sealed bearing 302. The top end of the hollow rotating rod 303 is sleeved inside the first sealed bearing 204.

[0044] Reference Figure 2 , Figure 5 and Figure 7 A helical blade 304 is fixedly connected to the outer surface of the hollow rotating rod 303. The outer surface of the helical blade 304 has evenly distributed drainage holes 305. The outer surface of the hollow rotating rod 303 has evenly distributed strip-shaped holes 306. Multiple pore pressure sensors 307 and stress sensors 308 are respectively installed on both sides of the inner wall of the outer cylinder 301. Both the pore pressure sensors 307 and stress sensors 308 are conventional pore water pressure sensors and earth pressure sensors in the art, employing a patch-type or probe-type structure. The probe end directly contacts the soil, sensing changes in pore water pressure and total stress within the soil and converting them into... The electrical signal output is provided by a spiral blade 304 located inside the outer cylinder 301. Multiple pore pressure sensors 307 and multiple stress sensors 308 are symmetrically distributed within the inner wall of the outer cylinder 301. The spiral blade 304 is entirely within the outer cylinder 301, ensuring that the squeezing and drainage effects during rotation are concentrated within the soil column enclosed by the outer cylinder 301, preventing energy dissipation. The symmetrical distribution of pore pressure sensors 307 and stress sensors 308 on both sides of the inner wall of the outer cylinder 301 eliminates measurement deviations caused by unilateral installation, accurately reflecting the average pore pressure and total stress distribution across the entire cross-section. This symmetrical layout also allows the control system to independently determine the reinforcement status of soil layers at different depths, providing a data foundation for layered frequency conversion control.

[0045] Reference Figure 4 , Figure 5 , Figure 6 and Figure 8The hollow rotating rod 303 is connected to the pumping pipe 203 via the first sealed bearing 204. A filter screen 309 is fixedly connected to the inner wall of the hollow rotating rod 303. The connection between the hollow rotating rod 303 and the pumping pipe 203 via the first sealed bearing 204 achieves dynamic sealing between the rotating component and the stationary pipeline, ensuring smooth water flow and preventing mud leakage. The filter screen 309 fixedly connected to the inner wall of the hollow rotating rod 303 can prevent large particles of gravel or plant roots in the soft soil from entering the pumping pipe 203 and the water pump 202, avoiding damage to the water pump 202. Two symmetrical vibrators 310 are fixedly connected to the upper surface of the outer cylinder 301. A servo motor 311 is fixedly connected to the upper surface of the outer cylinder 301. The vibrators 310 are fixedly arranged on the upper surface of the outer cylinder 301, which can evenly transmit the vibration force to the interior of the soft soil. The servo motor 311 is independently set to provide rotational power separately, realizing vibration and rotation. The rotational power is completely decoupled, unlike the traditional all-in-one structure, improving the precision of power control. A small sprocket 312 is fixedly connected to the output end of the servo motor 311, and a large sprocket 313 is fixedly connected to the outer surface of the hollow rotating rod 303. A chain 314 is mounted on the outside of the small sprocket 312, and the small sprocket 312 and the large sprocket 313 are connected by the chain 314. The small sprocket 312 on the output shaft of the servo motor 311 drives the large sprocket 313 on the hollow rotating rod 303 to rotate via the chain 314, achieving smooth deceleration and torque increase transmission. The sprocket and chain drive method is not sensitive to mud, water, and dust at soft soil construction sites; even if a small amount of mud splashes in, slippage or jamming is unlikely. The chain 314 has a certain degree of flexibility, preventing the servo motor 311 from directly bearing severe vibration.

[0046] Example 2: A soft soil vibration drainage device with frequency conversion control and spiral perforated blades, referring to... Figure 3 , Figure 4 and Figure 5The output end of the water pump 202 is connected to the interior of the annular water tank 201. An external drain pipe 207 is installed on the outer surface of the annular water tank 201. The water pump 202 can stably transport the extracted pore water to the annular water tank 201 for temporary storage, and then discharge it to the work area through the external drain pipe 207 to prevent water from flowing back to the soft soil foundation. This effectively blocks the circulation problem of drainage and seepage, and improves the continuity and effectiveness of drainage operations. Two symmetrical reinforcing plates 205 are fixedly connected to the outer surface of the pumping pipe 203. The ends of the two reinforcing plates 205 that are far apart from each other are fixedly connected to the inner wall of the annular water tank 201. The two symmetrically arranged reinforcing plates 205 fix the outer surface of the pumping pipe 203 to the inner wall of the annular water tank 201, which effectively enhances the stability of the pumping pipe 203 outside the annular water tank 201. Since the vibration component 3 generates continuous high-frequency vibration during operation, the water pumping pipe 203 is prone to shaking or loosening of the interface. The addition of the reinforcing plate 205 makes the water pumping pipe 203 and the annular water tank 201 form a rigid whole, avoiding pipe rupture or seal failure caused by vibration, and improving the reliability of long-term operation.

[0047] Reference Figure 3 , Figure 4 and Figure 5 A rubber column 206 is fixedly connected to the upper surface of the outer cylinder 301. The top end of the rubber column 206 is fixedly connected to the outer surface of the pumping pipe 203. The rubber column 206 connects the upper surface of the outer cylinder 301 and the outer surface of the pumping pipe 203, serving as flexible support and buffering vibration absorption. During operation, the high-frequency excitation force generated by the device is transmitted upwards through the outer cylinder 301. If the pumping pipe 203 is rigidly connected to the outer cylinder 301, fatigue fracture is likely to occur. The rubber column 206 absorbs some of the vibration energy through its own elastic deformation, while allowing for slight relative displacement between the pumping pipe 203 and the outer cylinder 301, thus extending the service life of the equipment.

[0048] Reference Figure 1 , Figure 4 and Figure 5A controller 4 is fixedly connected to the outer surface of the top frame 102. The controller 4 integrates a frequency converter control module. Electrical components inside the frame assembly 1, drainage assembly 2, and vibration assembly 3 are all electrically connected to the controller 4. The controller 4 can centrally receive sensor monitoring data and uniformly control the working status of the electric push rod 103, water pump 202, vibrator 310, and servo motor 311. The built-in frequency converter control module in the controller 4 can adjust the frequency of the vibrator 310 and the speed of the servo motor 311 based on the pore pressure and stress data fed back by the sensors. The frequency converter control module integrated inside the controller 4 consists of a PLC controller and a frequency converter. The PLC is a Siemens S7-1200 series or Mitsubishi FX3U series, and the frequency converter is a Siemens MM440 or Huichuan MD310 series. The two are connected via RS-485 communication or analog input terminals. The specific adjustment process of frequency conversion control is as follows: the frequency signals collected by the pore pressure sensor 307 and the stress sensor 308 are transmitted to the analog input module of the PLC via cable. The PLC converts the frequency into a pressure value according to the calibration formula and compares it with the preset pore pressure threshold in the controller 4 to calculate the deviation. The PLC executes the built-in PID algorithm to output a 0~10V or 4~20mA analog control signal to the analog input terminal of the frequency converter. The frequency converter adjusts its output frequency according to the analog signal value, thereby changing the vibration frequency of the vibrator 310. At the same time, the PLC sends a 0~10V speed command signal to the driver of the servo motor 311 through another analog output channel to independently adjust its rotation speed. In addition, the parameters of the PID controller inside the frequency converter can be adjusted on-site by the operator on the human-machine interface of the controller 4 according to the characteristics of the soft soil layer, so as to adapt to the optimal vibration drainage parameters under different soil conditions. Universal wheels 5 are installed at the four corners of the bottom surface of the rectangular frame 101, and anchoring cones 6 are threadedly connected at the four corners of the upper surface of the rectangular frame 101. Reinforcing plates 7 are welded at the corners of the top frame 102. The universal wheels 5 improve the mobility of the device, the anchoring cones 6 can fix the rectangular frame 101 in the work site to prevent the device from shifting due to vibration, and the reinforcing plates 7 strengthen the structural strength of the top frame 102 to prevent the frame from deforming due to long-term vibration, thus taking into account the ease of movement, operational stability and structural durability of the device.

[0049] It should be noted that the frequency conversion control module built into the controller 4 in this application will pre-set a reasonable range of pore water pressure and soil stress according to the typical working conditions of soft soil drainage consolidation. When the device is operating continuously, the pore pressure sensor 307 and the stress sensor 308 will continuously transmit the monitored soil parameters to the controller 4. When the monitored data exceeds the set range, the frequency conversion control module will respond immediately, automatically reduce the vibration frequency of the vibrator 310 to alleviate the rapid increase of pore pressure, and adaptively adjust the speed of the servo motor 311 to avoid the rotation and compression of the spiral blade 304 from aggravating soil disturbance. When the monitored data returns to the reasonable range, it will gradually restore to the normal working parameters. It can adapt to the drainage and reinforcement needs of soft soil of different soil types and depths, and ensure accurate matching between frequency conversion adjustment and real-time working conditions.

[0050] The implementation principle of this application embodiment is as follows: First, the casters 5 move the entire assembly to the designated construction position. Then, the anchoring cone 6 is screwed into the ground to fix the frame assembly 1. The reinforcing plate 7 ensures that the top frame 102 maintains structural stability under vibration conditions. Subsequently, the controller 4 activates the electric push rod 103, which pushes the connecting plate 104 and the connecting column 105 downward, causing the annular water tank 201 and the outer cylinder 301 to move, so that the outer cylinder 301 extends into the soft soil. However, the annular water tank 201 will not enter the soft soil. After 01 is in place, the servo motor 311 starts running. Through the transmission cooperation of the small sprocket 312, chain 314 and large sprocket 313, it smoothly drives the hollow rotating rod 303 to rotate. The hollow rotating rod 303 rotates stably under the support of the first sealed bearing 204 and the second sealed bearing 302, driving the spiral blades 304 to rotate and squeeze the soft soil. The drainage holes 305 on the surface of the spiral blades 304 can quickly release the excess pore water pressure generated locally in the soil. The strip-shaped holes 306 on the outer wall of the hollow rotating rod 303 simultaneously expand the water inlet area, making the holes... Pore ​​water smoothly enters the hollow rotating rod 303, while the filter screen 309 prevents soil particles from entering the water pump 202, thus avoiding blockage. Simultaneously, the vibrator 310, fixed to the upper surface of the outer cylinder 301, works synchronously, evenly transmitting the excitation force to the soil interior, accelerating the precipitation and flow of pore water. The rubber column 206 absorbs the vibration transmission, the reinforcing plate 205 keeps the pumping pipe 203 stable, and the water pump 202 extracts the water from the hollow rotating rod 303 through the pumping pipe 203 and transports it to the annular water tank 201 for temporary storage, before draining it through the external discharge pipe. 207 uniformly discharges water from the work area to prevent backflow. The pore pressure sensor 307 and stress sensor 308 on the inner wall of the outer cylinder 301 collect pore water pressure and total stress data of the soil and transmit the signals to the controller 4. The frequency conversion control module inside the controller 4 adjusts the vibration frequency of the vibrator 310 and the rotation speed of the servo motor 311 according to the data, so that the device always matches the soil drainage and consolidation state, reducing the risk of pore pressure accumulation while improving energy utilization, and finally achieving efficient, uniform and stable drainage and reinforcement of soft soil foundation.

Claims

1. A soft soil vibration drainage device with frequency conversion control and helical perforated blades, comprising a frame assembly (1), a drainage assembly (2), and a vibration assembly (3), characterized in that: The frame assembly (1) includes a rectangular frame (101) and a top frame (102) fixedly connected to the upper surface of the rectangular frame (101). An electric push rod (103) is fixedly connected to the top of the top frame (102), and a connecting plate (104) is fixedly connected to the output end of the electric push rod (103). A plurality of connecting columns (105) are fixedly connected to the bottom surface of the connecting plate (104). The drainage assembly (2) includes an annular water tank (201). The vibration assembly (3) includes an outer cylinder (301) fixedly connected to the bottom surface of the annular water tank (201). A water pump (202) is installed inside the annular water tank (201). The input end of the water pump (202) is connected to a water suction pipe (203). The water suction pipe (203) delivers water to the inner side of the annular water tank (201). A first sealed bearing (204) is installed on the inner wall of the inlet end, and a second sealed bearing (302) is installed on the inner top wall of the outer cylinder (301). A rotatable hollow rotating rod (303) is installed on the inner wall of the second sealed bearing (302). The top end of the hollow rotating rod (303) is sleeved inside the first sealed bearing (204). A spiral blade (304) is fixedly connected to the outer surface of the hollow rotating rod (303). The outer surface of the spiral blade (304) is provided with uniformly distributed drainage holes (305). The outer surface of the hollow rotating rod (303) is provided with uniformly distributed strip holes (306). Multiple pore pressure sensors (307) and stress sensors (308) are respectively installed on both sides of the inner wall of the outer cylinder (301).

2. The soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: The upper surface of the annular water tank (201) is fixedly connected to the bottom surface of multiple connecting columns (105), the output end of the water pump (202) is connected to the interior of the annular water tank (201), and an external drain pipe (207) is installed on the outer surface of the annular water tank (201).

3. The soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: Two symmetrical reinforcing plates (205) are fixedly connected to the outer surface of the water pump (203), and the ends of the two reinforcing plates (205) that are far apart from each other are fixedly connected to the inner wall of the annular water tank (201).

4. The soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: A rubber column (206) is fixedly connected to the upper surface of the outer cylinder (301), and the top end of the rubber column (206) is fixedly connected to the outer surface of the water pumping pipe (203).

5. A soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: The spiral blade (304) is located inside the outer cylinder (301), and multiple pore pressure sensors (307) and multiple stress sensors (308) are symmetrically distributed in the inner wall of the outer cylinder (301).

6. A soft soil vibration drainage device with frequency conversion control and helical perforated blades according to claim 1, characterized in that: The hollow rotating rod (303) is connected to the water pumping pipe (203) through the first sealed bearing (204), and a filter screen (309) is fixedly connected to the inner wall of the hollow rotating rod (303).

7. A soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: Two symmetrical vibrators (310) are fixedly connected to the upper surface of the outer cylinder (301), and a servo motor (311) is fixedly connected to the upper surface of the outer cylinder (301).

8. A soft soil vibration drainage device with frequency conversion control and helical perforated blades according to claim 7, characterized in that: The output end of the servo motor (311) is fixedly connected to a small sprocket (312), and the outer surface of the hollow rotating rod (303) is fixedly connected to a large sprocket (313). The small sprocket (312) is provided with a chain (314) on its outside. The small sprocket (312) and the large sprocket (313) are connected by the chain (314) for transmission.

9. A soft soil vibration drainage device with frequency conversion control and spiral perforated blades according to claim 1, characterized in that: The outer surface of the top frame (102) is fixedly connected to a controller (4), and the controller (4) integrates a frequency conversion control module. The electrical components inside the frame assembly (1), drainage assembly (2) and vibration assembly (3) are all electrically connected to the controller (4).

10. A soft soil vibration drainage device with frequency conversion control and helical perforated blades according to claim 1, characterized in that: The rectangular frame (101) is equipped with casters (5) at the four corners of its bottom surface, and anchor cones (6) are threaded to the four corners of its upper surface. The top frame (102) is welded with reinforcing plates (7) at its corners.

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