A construction technology for underground continuous wall of deep foundation pit

Abstract

The present invention relates to a construction process for an underground continuous wall in a deep foundation pit, comprising a walking unit and a shaping unit. The shaping unit is provided on the walking unit, and the walking unit comprises a load-bearing shell, a stepping motor, a direction cylinder, a traction bracket and a circular shell. The shaping unit comprises a rotating frame, a shaping cylinder, a shaping pressure plate, a shaping nail rack, a material box and a wall panel nail rack. The present invention enables the shaping unit to enter the groove through the walking unit, and nails and shapes the groove wall of soft soil closely following the groove opening machine to prevent the groove wall of soft soil from tilting and collapsing. The walking unit cooperates with the shaping unit and moves according to the trajectory of the groove, so that the shaping unit is always in close contact with the groove wall, ensuring that the groove wall is always nailed and shaped by the shaping unit.

Description

Technical Field

[0001] The invention relates to the technical field of deep foundation pit underground continuous wall construction, in particular to a deep foundation pit underground continuous wall construction process. Background Art

[0002] By using various trenching machines and the wall protection effect of mud, narrow and deep trenches are dug underground, and appropriate materials are poured into them to form a continuous underground wall with anti-seepage, soil retaining and load-bearing functions. This is called an underground continuous wall. It has the advantages of low construction noise, high wall rigidity, very few foundation settlements or landslides, good anti-seepage ability, and little impact on surrounding buildings or pipelines. It can be constructed close to the construction and reverse construction method, which is safe and economical. It can make full use of the limited ground and space within the building red line and give full play to the advantages of investment benefits.

[0003] When the soil hardness is moderate, the processing effect is good, but my country's soft soil is widely distributed, mainly located in coastal areas, plains, inland lake basins, depressions and areas on both sides of rivers, and most construction sites are close to ditches and lakes, so the soil is even softer. When the trench is dug with the help of a trenching machine, the soil on both sides of the trench wall is very likely to shift, tilt or even collapse due to lack of timely support. Therefore, the trench wall needs to be shaped after trenching to prevent it from shifting, tilting or even collapsing, and it needs to be adjusted at any time to match the trajectory shape of the trench. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a deep foundation pit underground continuous wall construction process.

[0005] A deep foundation pit underground continuous wall construction process uses a deep foundation pit underground continuous wall construction device, which includes a walking unit and a shaping unit. The specific method of using the deep foundation pit underground continuous wall construction device to construct the deep foundation pit underground continuous wall is as follows:

[0006] S1. Marking and grooving: First, mark the ground according to the needs, and then groove the land with a grooving machine;

[0007] S2. Moving contact: The walking unit follows the slotting machine and drives the shaping unit to move so that it contacts the bottom of the slot;

[0008] S3, nailing and shaping: the shaping unit contacts the groove wall and nails and shapes the groove wall;

[0009] S4, support pouring: The crane transports the steel cage into the slot, inserts the joint pipe, pours concrete, and pulls out the joint pipe;

[0010] The walking unit is provided with a shaping unit;

[0011] The walking unit includes a load-bearing shell, a walking system is fixedly installed inside the load-bearing shell, a stepper motor is fixedly installed on the upper side of the load-bearing shell through a motor seat, a direction cylinder is fixedly installed on the output shaft of the stepper motor through a coupling, the direction cylinder is rotatably connected to the load-bearing shell, a traction bracket is fixedly installed on the upper end of the direction cylinder, a circular shell is fixedly installed on the lower end of the traction bracket, and a shaping unit is provided at the lower end of the circular shell.

[0012] The shaping unit includes a rotating frame, the lower end of the circular shell is rotatably connected to the rotating frame, the rotating frame is symmetrically fixedly installed with a shaping cylinder, the end of the shaping cylinder is fixedly installed with a shaping pressure plate, the shaping pressure plate is symmetrically fixedly installed with a shaping nail rack, the upper end of the shaping nail rack is fixedly installed with a material box, and a wall panel nail rack is placed in the material box.

[0013] Preferred technical solution one: The traction bracket includes a T-shaped frame, a T-shaped frame is fixedly installed on the upper end of the direction cylinder, a roller is rotatably connected to the lower side of the T-shaped frame, a second motor is fixedly installed on the rear end of the T-shaped frame through a motor seat, the output shaft of the second motor is fixedly connected to the roller through a coupling, a traction rope is fixedly installed on the roller, the traction rope is wound around the roller, a cylindrical shell is fixedly installed on the lower end of the T-shaped frame, a rope through hole is opened at the lower end of the middle part of the cylindrical shell, and the end of the traction rope is fixedly connected to the circular outer shell through the rope through hole.

[0014] Preferred technical solution two: The rotating frame includes a rotating column, the lower end of the circular shell is rotatably connected to the rotating column, the circular shell is fixedly installed with motor three through the motor seat, the output shaft of motor three is fixedly installed with a cylindrical gear through a coupling, an annular groove is provided at the upper end of the rotating column, and straight tooth grooves are evenly provided in the annular groove, the straight tooth grooves are meshed with the cylindrical gear, and the rotating column is symmetrically fixed with shaping cylinders on the left and right.

[0015] Preferred technical solution three: The shaping pressure plate includes a rectangular pressure plate, and the end of the shaping cylinder is fixedly installed with a rectangular pressure plate, and the end of the rectangular pressure plate away from the shaping cylinder is rotatably connected to a rolling column.

[0016] Preferred technical solution four: The shaping nail frame includes a positioning support plate, a positioning support plate is fixedly installed symmetrically in the front and back of the shaping pressure plate, and positioning through holes are evenly opened on the positioning support plate. Adjacent positioning through holes are connected by connecting holes, and electric push rods are fixedly installed symmetrically in the front and back of the connecting holes. A blocking plate is fixedly installed at the end of the electric push rod, and a right-angle plate is fixedly installed on the positioning support plate near the shaping cylinder. An extrusion cylinder is fixedly installed at the end of the right-angle plate and the shaping pressure plate. A rectangular plate is fixedly installed at the end of the extrusion cylinder, and anti-interference columns are evenly fixedly installed on the end of the rectangular plate away from the extrusion cylinder. The square interference columns are aligned with the positioning through holes, and the wall panel nail frame and the positioning through holes and the wall panel nail frame and the connecting holes are all connected in a sliding manner, and a plurality of guide bars are fixedly installed on the inner walls of the positioning through holes and the connecting holes.

[0017] Preferred technical solution five: A rectangular through hole is provided in the material holding box, and a guide bar 2 is evenly fixedly installed on the inner wall of the rectangular through hole. Multiple wall panel nail racks are placed in the rectangular through hole, and a fixed groove is symmetrically provided on the front and back sides of the lower side of the rectangular through hole. An electric telescopic rod is fixedly installed in the fixed groove, and a rectangular baffle is fixedly installed at the end of the electric telescopic rod. The rectangular through hole and the wall panel nail rack are connected in a sliding fit.

[0018] Preferred technical solution six: The wall panel nail rack includes a metal close-fitting plate, a circular hollow tube is evenly fixedly installed on one end of the metal close-fitting plate, a conical nail head is evenly fixedly installed on the end of the circular hollow tube, and hook holes are evenly opened at the other end of the metal close-fitting plate. A plurality of guide grooves are opened at the other end of the metal close-fitting plate and located between the hook holes, and guide bar one and guide bar two are both matched with the guide grooves.

[0019] Preferred technical solution seven: The traction rope is composed of multiple matching blocks, which are rotatably connected to each other, and right-angle positioning blocks are fixedly installed at the opposite ends of the matching blocks, and counterweight blocks are fixedly installed on the lower sides of the matching blocks.

[0020] Preferred technical solution eight: The inner end of the rope through hole is evenly connected with a lubricating ball, and the inner wall of the rope through hole is fixedly installed with a cleaning brush.

[0021] The present invention has the following beneficial effects: 1. The present invention provides a deep foundation pit underground continuous wall construction process, in which a shaping unit is enabled to enter the groove through a walking unit, and then the groove wall of the soft soil is nailed and shaped by a grooving machine to prevent the groove wall of the soft soil from tilting and collapsing. The walking unit cooperates with the shaping unit and moves according to the trajectory of the groove, so that the shaping unit is always in close contact with the groove wall, ensuring that the groove wall is always nailed and shaped by the shaping unit.

[0022] 2. The walking unit provided in the present invention drives the cylindrical gear to rotate through motor 3, thereby driving the rotating column to rotate. Compared with directly using motor 3 to drive the rotating column to rotate, the rotation angle can be accurately controlled to prevent the rotating column from rotating too fast, thereby causing the shaping pressure plate to hit the groove wall.

[0023] 3. The shaping unit provided in the present invention drives the blocking plate to move by an electric push rod, thereby limiting the positioning through-holes to prevent the wallboard nail rack from falling to the upper side of the positioning through-holes where the wallboard nail rack already exists. When the wallboard nail rack exists in all the positioning through-holes, the rectangular plate is driven to move by the extrusion cylinder, thereby driving the square interference column to squeeze the wallboard nail rack, so that the wallboard nail rack is inserted into the groove wall to shape the soft soil.

[0024] 4. The shaping unit provided in the present invention uses a metal close-fitting plate to shape the groove wall, and inserts a circular hollow tube into the groove wall. Compared with a solid rod, it will not produce a large deformation and extrusion force on the soil, preventing the groove wall from being difficult to compensate and thus deforming. The conical nail head reduces the difficulty of the circular hollow tube entering the groove wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the workflow of the present invention.

[0026] Figure 2 It is a schematic diagram of the main three-dimensional structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the left-side planar structure of the present invention.

[0028] Figure 4 For the present invention Figure 3 AA cross-sectional view.

[0029] Figure 5 For the present invention Figure 4 A local enlarged view of point N.

[0030] Figure 6 For the present invention Figure 3 Cross-sectional view along CC direction.

[0031] Figure 7 It is a schematic diagram of the main plane structure of the present invention.

[0032] Figure 8 For the present invention Figure 7 BB cross-sectional view.

[0033] Figure 9 This is a schematic diagram of the main three-dimensional structure of the wall panel nail rack of the present invention.

[0034] In the figure: 1. Travel unit; 11. Load-bearing shell; 12. Travel system 1; 13. Stepper motor 1; 14. Direction cylinder; 15. Traction bracket; 151. T-shaped frame; 152. Roller; 153. Motor 2; 154. Traction rope; 1541. Matching block; 1542. Right-angle positioning block; 1543. Counterweight; 155. Cylinder shell; 156. Rope through hole; 1561. Lubricating ball; 1562. Cleaning brush; 16. Circular shell; 2. Shaping unit; 21. Rotating frame; 211. Rotating column; 212. Motor 3; 213. Cylindrical gear; 214. Annular groove; 215. Straight tooth groove; 22. Shaping cylinder; 2 3. Shaping pressure plate; 231. Rectangular pressure plate; 232. Rolling column; 24. Shaping nail rack; 241. Positioning support plate; 242. Positioning through hole; 243. Connecting hole; 244. Electric push rod; 245. Blocking plate; 246. Right-angle plate; 247. Extrusion cylinder; 248. Rectangular plate; 249. Anti-interference column; 250. Guide strip 1; 25. Material box; 251. Rectangular through hole; 252. Guide strip 2; 253. Fixing groove; 254. Electric telescopic rod; 255. Rectangular baffle; 26. Wall panel nail rack; 261. Metal close-fitting plate; 262. Circular hollow tube; 263. Conical nail head; 264. Hook hole; 265. Guide groove. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See Figure 1 A deep foundation pit underground continuous wall construction process uses a deep foundation pit underground continuous wall construction equipment, the deep foundation pit underground continuous wall construction equipment includes a walking unit 1 and a shaping unit 2. The specific method of using the deep foundation pit underground continuous wall construction equipment to construct the deep foundation pit underground continuous wall is as follows:

[0037] S1. Marking and grooving: First, mark the ground according to the needs, and then groove the land with a grooving machine;

[0038] S2, moving contact: the walking unit 1 follows the slotting machine and drives the shaping unit 2 to move so that it contacts the bottom of the slot;

[0039] S3, nailing and shaping: the shaping unit 2 contacts the groove wall and nails and shapes the groove wall;

[0040] S4, support pouring: The crane transports the steel cage into the slot, inserts the joint pipe, pours concrete, and pulls out the joint pipe;

[0041] See Figure 2 , the walking unit 1 is provided with a shaping unit 2;

[0042] See Figure 2 and Figure 4 The walking unit 1 includes a load-bearing shell 11, and a walking system 12 is fixedly installed inside the load-bearing shell 11. A stepper motor 13 is fixedly installed on the upper side of the load-bearing shell 11 through a motor seat. The output shaft of the stepper motor 13 is fixedly installed with a direction cylinder 14 through a coupling. The direction cylinder 14 is rotatably connected to the load-bearing shell 11, and a traction bracket 15 is fixedly installed on the upper end of the direction cylinder 14. A circular shell 16 is fixedly installed on the lower end of the traction bracket 15, and a shaping unit 2 is provided at the lower end of the circular shell 16. First, the land is grooved by the groover. The walking system 12 drives the load-bearing shell 11 to walk on the land, and the direction cylinder 14 is rotated by the stepper motor 13, so that the traction bracket 15 drives the shaping unit 2 to move to the groove according to the trajectory shape of the groove, and the shaping unit 2 is driven downward by the traction bracket 15 until it contacts the bottom of the groove. Since the working object is soft soil, the shaping unit 2 follows the groover to ensure that the groove is supported and shaped at any time.

[0043] See Figure 2 and Figure 3 The shaping unit 2 includes a rotating frame 21, and the lower end of the circular shell 16 is rotatably connected to the rotating frame 21. The rotating frame 21 is symmetrically fixed with a shaping cylinder 22, and a shaping pressure plate 23 is fixedly installed at the end of the shaping cylinder 22. The shaping pressure plate 23 is symmetrically fixed with a shaping nail rack 24 front and back, and a material box 25 is fixedly installed on the upper end of the shaping nail rack 24. A wall panel nail rack 26 is placed in the material box 25; the direction of the shaping pressure plate 23 is controlled by the rotating frame 21 to ensure that the shaping pressure plate 23 is horizontally aligned with the groove wall, and the shaping pressure plate 23 is driven to move by the shaping cylinder 22, thereby driving the shaping nail rack 24 to contact the groove wall, and the groove wall is nailed and shaped by the shaping nail rack 24, and the wall panel nail rack 26 is placed by the material box 25.

[0044] See Figure 2 、 Figure 4 and Figure 5The traction bracket 15 includes a T-shaped frame 151, and the T-shaped frame 151 is fixedly installed on the upper end of the direction cylinder 14. The lower side of the T-shaped frame 151 is rotatably connected to the drum 152. The rear end of the T-shaped frame 151 is fixedly installed with a motor 2 153 through a motor seat. The output shaft of the motor 2 153 is fixedly connected to the drum 152 through a coupling. A traction rope 154 is fixedly installed on the drum 152, and the traction rope 154 is wound around the drum 152. The lower end of the T-shaped frame 151 is fixedly installed with a cylindrical shell 155. A rope through hole 156 is opened at the lower end of the middle part of the cylindrical shell 155. The end of the traction rope 154 is fixedly connected to the circular shell 16 through the rope through hole 156; the drum 152 is driven to rotate by the motor 2 153, thereby driving the traction rope 154 to reel in and unreel, thereby controlling the vertical displacement of the circular shell 16, and the rope through hole 156 is positioned and guided by the cylindrical shell 155 to prevent the horizontal position of the circular shell 16 from changing.

[0045] See Figure 4 The rotating frame 21 includes a rotating column 211, and the rotating column 211 is rotatably connected to the lower end of the circular shell 16. A motor three 212 is fixedly installed in the circular shell 16 through a motor seat. The output shaft of the motor three 212 is fixedly installed with a cylindrical gear 213 through a coupling. An annular groove 214 is provided on the upper end of the rotating column 211. Straight tooth grooves 215 are evenly provided in the annular groove 214. The straight tooth grooves 215 are meshed with the cylindrical gear 213. The rotating column 211 is symmetrically fixed with the shaping cylinder 22. The cylindrical gear 213 is driven to rotate by the motor three 212, thereby driving the rotating column 211 to rotate. Compared with directly using the motor three 212 to drive the rotating column 211 to rotate, the rotation angle can be precisely controlled to prevent the rotating column 211 from rotating too fast, thereby causing the shaping pressure plate 23 to hit the groove wall.

[0046] Continue reading Figure 4 The shaping plate 23 includes a rectangular pressing plate 231, and a rectangular pressing plate 231 is fixedly installed at the end of the shaping cylinder 22. The end of the rectangular pressing plate 231 away from the shaping cylinder 22 is rotatably connected to a rolling column 232; the rolling column 232 on the rectangular pressing plate 231 squeezes the surface of the wallboard nail rack 26 processed by the shaping nail rack 24, so that the structure formed with the groove wall is perpendicular to the horizontal plane.

[0047] See Figure 6 、 Figure 7 and Figure 8The shaping nail frame 24 includes a positioning support plate 241, and the shaping pressure plate 23 is fixedly installed with the positioning support plate 241 symmetrically in front and back. Positioning through holes 242 are evenly opened on the positioning support plate 241. Adjacent positioning through holes 242 are connected by connecting holes 243. Electric push rods 244 are fixedly installed in the connecting holes 243 symmetrically in front and back. A blocking plate 245 is fixedly installed at the end of the electric push rod 244. A right-angle plate 246 is fixedly installed on the positioning support plate 241 near the shaping cylinder 22. An extrusion cylinder 247 is fixedly installed at the end of the right-angle plate 246 parallel to the shaping pressure plate 23. A rectangular plate 248 is fixedly installed at the end of the extrusion cylinder 247. An anti-interference column 249 is evenly fixedly installed on the end of the rectangular plate 248 away from the extrusion cylinder 247. The square interference column and the positioning through hole 242 The wallboard nail rack 26 and the positioning through-hole 242 and the wallboard nail rack 26 and the connecting hole 243 are connected in a sliding manner. The inner walls of the positioning through-hole 242 and the connecting hole 243 are fixedly installed with a plurality of guide strips 250; the wallboard nail rack 26 falls into the positioning through-hole 242 in the material box 25, and the blocking plate 245 is driven to move by the electric push rod 244, thereby restricting the positioning through-hole 242 to prevent the wallboard nail rack 26 from falling to the upper side of the positioning through-hole 242 where the wallboard nail rack 26 already exists. When the wallboard nail rack 26 exists in all the positioning through-holes 242, the rectangular plate 248 is driven to move by the extrusion cylinder 247, thereby driving the square interference column to squeeze the wallboard nail rack 26, so that the wallboard nail rack 26 is inserted into the groove wall to shape the soft soil.

[0048] See Figure 2 、 Figure 6 and Figure 8 A rectangular through hole 251 is provided in the material holding box 25, and a second guide bar 252 is evenly fixedly installed on the inner wall of the rectangular through hole 251. A plurality of wall panel nail racks 26 are placed in the rectangular through hole 251, and a fixing groove 253 is symmetrically provided on the front and back sides of the lower side of the rectangular through hole 251. An electric telescopic rod 254 is fixedly installed in the fixing groove 253, and a rectangular baffle 255 is fixedly installed at the end of the electric telescopic rod 254. The rectangular through hole 251 and the wall panel nail rack 26 are connected in a sliding manner; the second guide bar 252 cooperates with the wall panel nail rack 26 to position and guide it, and the electric telescopic rod 254 drives the rectangular baffle 255 to control the connection of the lower part of the rectangular through hole 251, thereby controlling the falling of the wall panel nail rack 26.

[0049] See Figure 6 and Figure 9The wallboard nail frame 26 includes a metal close-fitting plate 261, a circular hollow tube 262 is evenly fixedly installed on one end of the metal close-fitting plate 261, a conical nail head 263 is evenly fixedly installed on the end of the circular hollow tube 262, and the other end of the metal close-fitting plate 261 is evenly provided with hook holes 264. A plurality of guide grooves 265 are provided on the other end of the metal close-fitting plate 261 and between the hook holes 264. The guide bar 1 250 and the guide bar 2 252 are matched with the guide groove 265. The groove wall is tightly shaped by the metal close-fitting plate 261, and the circular hollow tube 262 is used to fix the groove wall. Inserted into the groove wall, compared with a solid rod, it will not produce a large deformation and extrusion force on the soil, preventing the groove wall from being difficult to compensate and thus deforming. The guide groove 265 cooperates with the guide bar 1 250 and the guide bar 2 252 to position and guide the metal close plate 261, and the conical nail head 263 reduces the difficulty of the circular hollow tube 262 entering the groove wall. After the metal close plates 261 on both sides of the groove wall are positioned, the supporting metal rod contacts the hook hole 264 and is welded by a welding machine to support both ends of the metal close plate 261.

[0050] See Figure 5 The traction rope 154 is composed of a plurality of matching blocks 1541, which are rotatably connected to each other. A right-angle positioning block 1542 is fixedly installed at the opposite end of the matching block 1541, and a counterweight block 1543 is fixedly installed on the lower side of the matching block 1541; the right-angle positioning block 1542 is used to prevent the matching blocks 1541 extending out of the rope through hole 156 from rotating with each other, and the counterweight block 1543 is used to lower the center of gravity of the matching block 1541, reduce the influence of external force on it, and further prevent the matching blocks 1541 from rotating with each other due to force.

[0051] Continue reading Figure 5 The inner end of the rope through hole 156 is evenly connected with a lubricating ball 1561, and the inner wall of the rope through hole 156 is fixedly installed with a cleaning brush 1562; the lubricating ball 1561 is used to reduce the friction resistance of the matching block 1541, and the cleaning brush 1562 is used to clean the impurities on the surface of the matching block 1541 to prevent them from corroding the matching block 1541 that is gathered together after winding.

[0052] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A deep foundation pit underground continuous wall construction process, which uses a deep foundation pit underground continuous wall construction equipment, the deep foundation pit underground continuous wall construction equipment includes a walking unit and a shaping unit, and is characterized by: The specific method for constructing the deep foundation pit underground continuous wall using the above-mentioned deep foundation pit underground continuous wall construction equipment is as follows: S1. Marking and grooving: First, mark the ground according to the needs, and then groove the land with a grooving machine; S2. Moving contact: The walking unit follows the slotting machine and drives the shaping unit to move so that it contacts the bottom of the slot; S3, nailing and shaping: the shaping unit contacts the groove wall and nails and shapes the groove wall; S4, support pouring: The crane transports the steel cage into the slot, inserts the joint pipe, pours concrete, and pulls out the joint pipe; The walking unit is provided with a shaping unit; The walking unit includes a load-bearing shell, a walking system 1 is fixedly installed inside the load-bearing shell, a stepper motor 1 is fixedly installed on the upper side of the load-bearing shell through a motor seat, a direction cylinder is fixedly installed on the output shaft of the stepper motor 1 through a coupling, the direction cylinder and the load-bearing shell are rotatably connected, a traction bracket is fixedly installed on the upper end of the direction cylinder, a circular shell is fixedly installed on the lower end of the traction bracket, and a shaping unit is provided at the lower end of the circular shell; The shaping unit includes a rotating frame, the lower end of the circular shell is rotatably connected to the rotating frame, the rotating frame is symmetrically fixed with a shaping cylinder, the end of the shaping cylinder is fixedly installed with a shaping pressure plate, the shaping pressure plate is symmetrically fixed with a shaping nail rack, the upper end of the shaping nail rack is fixedly installed with a material box, and the wallboard nail rack is placed in the material box; A rectangular through hole is provided in the material holding box, and two guide bars are evenly fixedly installed on the inner wall of the rectangular through hole. A plurality of wallboard nail racks are placed in the rectangular through hole. A fixing groove is symmetrically provided on the lower side of the rectangular through hole. An electric telescopic rod is fixedly installed in the fixing groove. A rectangular baffle is fixedly installed at the end of the electric telescopic rod. The rectangular through hole and the wallboard nail rack are connected in a sliding manner. The shaping plate comprises a rectangular plate, a rectangular plate is fixedly mounted on the end of the shaping cylinder, and a rolling column is rotatably connected to the end of the rectangular plate away from the shaping cylinder; the rolling column on the rectangular plate squeezes the surface of the wallboard nail rack after being processed by the shaping nail rack; The rotating frame includes a rotating column, the lower end of the circular shell is rotatably connected to the rotating column, the circular shell is fixedly installed with motor three through the motor seat, the output shaft of motor three is fixedly installed with a cylindrical gear through a coupling, an annular groove is provided at the upper end of the rotating column, straight tooth grooves are evenly provided in the annular groove, the straight tooth grooves are meshed with the cylindrical gear, and the rotating column is symmetrically fixed with a shaping cylinder.

2. A deep foundation pit underground continuous wall construction process according to claim 1, characterized in that: The traction bracket includes a T-shaped frame, a T-shaped frame is fixedly installed on the upper end of the direction cylinder, a roller is rotatably connected to the lower side of the T-shaped frame, a second motor is fixedly installed on the rear end of the T-shaped frame through a motor seat, the output shaft of the second motor is fixedly connected to the roller through a coupling, a traction rope is fixedly installed on the roller, the traction rope is wound around the roller, a cylindrical shell is fixedly installed on the lower end of the T-shaped frame, a rope through hole is opened at the lower end of the middle part of the cylindrical shell, and the end of the traction rope is fixedly connected to the circular outer shell through the rope through hole.

3. The deep foundation pit underground continuous wall construction process according to claim 1, characterized in that: The shaping nail frame includes a positioning support plate, a positioning support plate is fixedly installed symmetrically front and back on the shaping pressure plate, and positioning through holes are evenly opened on the positioning support plate. Adjacent positioning through holes are connected by connecting holes, and electric push rods are fixedly installed symmetrically front and back in the connecting holes. A blocking plate is fixedly installed at the end of the electric push rod, and a right-angle plate is fixedly installed on the positioning support plate near the shaping cylinder. An extrusion cylinder is fixedly installed at the end of the right-angle plate and the shaping pressure plate. A rectangular plate is fixedly installed at the end of the extrusion cylinder, and anti-interference columns are evenly fixedly installed on the end of the rectangular plate away from the extrusion cylinder. The anti-interference columns are aligned with the positioning through holes, and the wall panel nail frame and the positioning through holes and the wall panel nail frame and the connecting holes are all connected in a sliding manner, and a plurality of guide bars are fixedly installed on the inner walls of the positioning through holes and the connecting holes.

4. A deep foundation pit underground continuous wall construction process according to claim 3, characterized in that: The wall panel nail rack includes a metal close-fitting plate, a circular hollow tube is evenly fixedly installed on one end of the metal close-fitting plate, a conical nail head is evenly fixedly installed on the end of the circular hollow tube, hook holes are evenly opened on the other end of the metal close-fitting plate, and multiple guide grooves are opened on the other end of the metal close-fitting plate and located between the hook holes, and guide bar 1 and guide bar 2 are both matched with the guide grooves.

5. The deep foundation pit underground continuous wall construction process according to claim 2, characterized in that: The traction rope is composed of a plurality of matching blocks, which are rotatably connected to each other, and right-angle positioning blocks are fixedly installed at opposite ends of the matching blocks, and counterweight blocks are fixedly installed at the lower sides of the matching blocks.

6. The deep foundation pit underground continuous wall construction process according to claim 2, characterized in that: The inner end of the rope through hole is evenly connected with a lubricating ball, and the inner wall of the rope through hole is fixedly installed with a cleaning brush.

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