Underground diaphragm wall close to high-voltage iron tower and construction method of underground diaphragm wall

Abstract

The invention relates to an underground diaphragm wall close to a high-pressure iron tower and a construction method of the underground diaphragm wall. A height limiting net-frame combined early warning prevention and control technology, a rapid assembling and disassembling carrying pole beam reinforcement cage sectional hoisting technology and a reinforcement cage film covering anti-seepage technology are adopted. The main construction steps include installation of the height-limiting net-frame combined early warning device, sectional double-machine lifting of the reinforcement cage, installation of the rapid assembly and disassembly carrying pole beam, film covering construction of the reinforcement cage, butt joint of the upper reinforcement cage and the lower reinforcement cage and concrete pouring. The safety distance between the hoisting equipment or the reinforcement cage and the high-voltage line is monitored in real time through the automatic early warning device, the hoisting efficiency of the reinforcement cage is improved by adopting the assembly type carrying pole beam, the water stopping effect of the enclosure structure is improved by introducing the impermeable membrane process, and the safety and economical efficiency of engineering construction are guaranteed.

Description

Technical Field

[0001] The invention relates to underground continuous wall construction, in particular to an underground continuous wall adjacent to a high-voltage iron tower and a construction method thereof. Background Art

[0002] With the rapid development of the economy, more and more cities have begun to build urban rail transit projects. Due to the scale of the foundation pit, underground continuous walls are used as station enclosure structures. During the construction of underground continuous walls close to high-voltage iron towers, the ground-connected wall hoisting operation is difficult and requires high early warning and prevention and control due to the clearance height of the high-voltage line and the distance requirements of the safety protection zone. In addition, after the construction of the underground continuous wall is completed, the foundation pit needs to be excavated. Conventional construction technology is prone to wall seepage and joint leakage during the foundation pit excavation process. Leakage plugging will not only increase construction costs but also extend the construction period.

[0003] In summary, it is very important to seek a construction method for underground continuous wall close to high-voltage towers with high construction efficiency and simple operation. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method for constructing an underground continuous wall adjacent to a high-voltage iron tower.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] The construction method of underground continuous wall adjacent to high-voltage iron tower includes the following steps:

[0007] Step 1: Installation of height-limiting net-frame combined warning device: Set up a height-limiting net-frame combined warning device below the high-voltage line influence area, change the elevation of the automatic warning device by adjusting the jack, and use the laser detection beam formed by the automatic warning device to monitor the safe distance between the lifting equipment or steel cage and the high-voltage line in real time;

[0008] Step 2: Lift the steel cage by two cranes in sections: Each section of the ground-connected wall steel cage is lifted by two cranes. The main crane and the auxiliary crane lift it together. After the ground-connected wall steel cage is completely vertical to the ground, the auxiliary crane is removed, and the main crane lowers the steel cage to the designed elevation, and quickly installs the assembled shoulder beam.

[0009] Step 3: Quickly assemble and disassemble the shoulder pole beam and install it: Arcade steel bar limit grooves are set on the left and right sides of the assembled shoulder pole beam to accommodate the ground wall steel bars, and the next section of the ground wall steel bar cage is welded and installed; the assembled shoulder pole beam is assembled from left and right symmetrical shoulder pole beam sections, and is quickly installed by inserting the pins on it into the sockets;

[0010] Step 4: Construction of steel cage film covering: After the steel cage is lowered, a film laying machine is used to lay the anti-seepage membrane together with the steel cage; before the shoulder pole is inserted, a rectangular hole is cut out at the shoulder pole hole with a cutter, and after the rope is replaced, the rectangular hole is repaired by pasting;

[0011] Step 5: Connect the upper and lower steel cages: After the upper steel cage is in place and the film is applied, align the upper and lower axes of the steel cage, connect all joints, quickly tighten the steel connectors and weld the upper and lower steel cages, slowly lower the steel cage, and repeat steps 2 to 4 until the hoisting construction of the ground-connected wall steel cage is completed;

[0012] Step 6. Concrete pouring: Prepare concrete according to design requirements and pour concrete using a conduit. After pouring, properly maintain the concrete.

[0013] Further, in step 1, the height-limited grid-frame combined warning device includes:

[0014] Height limit frame: It is composed of steel pipes assembled in sections through flanges. The bottom steel pipe is placed in the sleeve of the bottom plate, and a telescopic connecting rod is set in the center of the top steel pipe to fix it to the shelf plate;

[0015] Automatic warning device: installed on the top of the height limit frame, it monitors the safe distance between the lifting equipment or steel cage and the high-voltage line in real time through the laser detection beam;

[0016] Height limit net: installed on the column fixed to the steel pipe through the first connecting rod, the square slider is placed in the slide groove on the column, and an end plate with a lifting ring is installed at its end.

[0017] Further, in step three, the installation of the quick assembly and disassembly of the shoulder pole beam includes:

[0018] Assembled shoulder pole beam: It is assembled from left-right symmetrical shoulder pole beam segments and can be quickly installed by inserting the pins on it into the sockets;

[0019] Arc-shaped steel bar limiting groove: set on the left and right sides of the assembled shoulder beam, used to place the ground-connected wall steel bars;

[0020] Limiting track and combined slider: The combined slider is placed in the limiting track slotted at the bottom of the shoulder beam segment, a limiting component is installed at the bottom, and a positioning pin is set below to fix it to the ground.

[0021] Further, in step 4, the steel cage membrane anti-seepage comprises:

[0022] Film laminating machine: The upper support frame is installed on one side of the bottom bracket, and the triangular bracket is installed on the other side. The rotating shaft is placed on the triangular bracket and the anti-seepage film is placed;

[0023] Close to the rotating shaft: through the operation of close to the rotating shaft, it is ensured that the anti-seepage membrane and the ground-connected wall steel cage are closely fitted and leak-proof;

[0024] U-shaped limit blocks and L-shaped fixing blocks: U-shaped limit blocks are provided on both sides of the steel cage, and a membrane limit groove is provided on one side so that the anti-seepage membrane can be coated downward along the groove. L-shaped fixing blocks are installed on the U-shaped limit blocks to fit tightly against the ground-connected wall steel cage.

[0025] The underground continuous wall adjacent to the high-voltage iron tower is constructed by the above-mentioned underground continuous wall construction method adjacent to the high-voltage iron tower.

[0026] Compared with the prior art, the present invention has the following characteristics and beneficial effects:

[0027] 1. The present invention adopts a height-limited net-frame combined early warning and control technology. During the hoisting process, a combined prevention and control method of an automatic early warning protection frame + a protective net is used. An automatic early warning alarm is installed on the top of the protection frame to monitor the safe distance between the lifting equipment or the steel cage and the high-voltage line in real time. When the distance is less than the set safety threshold, an alarm is issued in time.

[0028] 2. The present invention adopts the technology of fast assembly and disassembly of shoulder pole beam steel cage segment hoisting. Arc-shaped steel bar limiting grooves are arranged on the left and right sides of the assembled shoulder pole beam to accommodate the ground-connected wall steel bars. The next segment of the ground-connected wall steel cage is welded and installed. The assembled shoulder pole beam is assembled from left and right symmetrical shoulder pole beam segments. The pins on it are inserted into the sockets for fast installation, which improves the hoisting construction efficiency of the ground-connected wall steel cage.

[0029] 3. The present invention adopts steel cage film covering anti-seepage technology. A membrane limiting groove is provided on the film laminating machine, so that the anti-seepage membrane is coated downward along the groove, and the operation of the close-fitting rotating shaft ensures that the anti-seepage membrane and the steel cage are tightly fitted and leak-proof. By introducing the anti-seepage membrane process into the underground continuous wall retaining structure, the water-stopping effect of the retaining structure is improved while meeting the foundation pit support, thereby ensuring the safety of the project construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural diagram of the height limit net when assembled on the ground;

[0031] Figure 2 It is a structural diagram of the height-limited frame;

[0032] Figure 3 This is a structural diagram of the height limit net when it is pulled up;

[0033] Figure 4 It is a schematic diagram of the height-limited grid-frame combined early warning and control technology;

[0034] Figure 5 This is a schematic diagram of the first section of the lifting of the steel cage for the quick assembly and disassembly of the shoulder pole beam;

[0035] Figure 6 It is a schematic diagram of the assembly of the upper and lower sections of the shoulder beam reinforcement cage for rapid assembly and disassembly;

[0036] Figure 7 This is a structural diagram after the shoulder pole beam is assembled;

[0037] Figure 8 This is a schematic diagram of the structure of the shoulder pole beam before it is assembled;

[0038] Fig. 9 It is a structural schematic diagram of the positioning assembly on the shoulder pole beam;

[0039] Fig.10 It is a cross-sectional view of the quick assembly and disassembly of the shoulder pole beam;

[0040] Fig.11 It is a structural diagram of steel cage membrane anti-seepage construction;

[0041] Fig.12 This is a schematic diagram of the structure before the steel cage membrane anti-seepage construction.

[0042] In the figure: 1. bottom plate; 2. sleeve; 3. flange; 4. slide; 5. jack; 6. shelf plate; 7. column; 8. fixed pulley; 9. cross bar; 10. rib plate; 11. automatic warning device; 12. telescopic connecting rod; 13. rope; 14. first connecting rod; 15. steel pipe; 16. square slider; 17. second connecting rod; 18. end plate; 19. height-limiting vertical rope; 20. height-limiting horizontal rope; 21. lifting ring; 22. ground-connected wall; 23. embedded screw; 24. height-limiting grid-frame combined warning device; 25. high-voltage line; 26. high-voltage line influence area; 27. ground-connected wall steel cage; 28. main crane; 29. ​​assembled shoulder pole Beam; 30. Limit track; 31. Arc-shaped steel bar limit groove; 32. Shoulder beam segment; 33. Positioning assembly; 34. Socket; 35. Pin; 36. Positioning pin; 37. Limit assembly; 38. Adjustment short column; 39. Connection block; 40. Combined slider; 41. Ground-connected wall steel bar; 42. Bottom bracket; 43. Triangular bracket; 44. Rotating shaft; 45. Anti-seepage membrane; 46. Close combination rotating shaft device; 47. Membrane limit groove; 48. L-shaped fixing block; 49. U-shaped limit block; 50. Upper support frame; 51. Inclined support leg; 52. Limit column; 53. Close to rotating shaft; 54. Oblique telescopic short rod; 55. Vertical telescopic short rod. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0044] Those skilled in the art should understand that, in the disclosure of the present application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0045] Figure 1 It is a structural diagram of the height limit net when it is assembled on the ground; Figure 2 It is a structural diagram of the height-limited frame; Figure 3 This is a structural diagram of the height limit net when it is pulled up; Figure 4 It is a schematic diagram of the height-limited grid-frame combined early warning and control technology;

[0046] Figure 5 This is a schematic diagram of the first section of the lifting of the steel cage for the quick assembly and disassembly of the shoulder pole beam; Figure 6 It is a schematic diagram of the assembly of the upper and lower sections of the shoulder beam reinforcement cage for rapid assembly and disassembly; Figure 7 This is a structural diagram after the shoulder pole beam is assembled; Figure 8 This is a schematic diagram of the structure of the shoulder pole beam before it is assembled; Fig. 9 It is a structural schematic diagram of the positioning assembly on the shoulder pole beam; Fig.10 It is a cross-sectional view of the quick assembly and disassembly of the shoulder pole beam; Fig.11 It is a structural diagram of steel cage membrane anti-seepage construction; Fig.12 This is a schematic diagram of the structure before the steel cage membrane anti-seepage construction.

[0047] Example 1

[0048] The construction structure of the underground continuous wall adjacent to the high-voltage iron tower includes a bottom plate 1, a sleeve 2, a flange 3, a slide 4, a jack 5, a shelf plate 6, a column 7, a fixed pulley 8, a cross bar 9, a rib plate 10, an automatic early warning device 11, a telescopic connecting rod 12, a rope 13, a first connecting rod 14, a steel pipe 15, a square slider 16, a second connecting rod 17, an end plate 18, a height-limiting vertical rope 19, a height-limiting horizontal rope 20, a lifting ring 21, a ground-connected wall 22, an embedded screw 23, a height-limiting grid-frame combined early warning device 24, a high-voltage line 25, a high-voltage line affected area 26, a ground-connected wall steel cage 27, a main crane 28, a assembled shoulder beam 29, a limiting track 30, an arc-shaped steel bar limiting groove 31, a shoulder beam segment 32, a positioning component 33, and a socket 3 4, latch 35, positioning pin 36, limiting assembly 37, adjusting short column 38, connecting block 39, combined slider 40, ground-connected wall reinforcement 41, bottom bracket 42, triangular bracket 43, rotating shaft 44, anti-seepage membrane 45, close combination rotating shaft device 46, membrane limiting groove 47, L-shaped fixing block 48, U-shaped limiting block 49, upper support frame 50, inclined support leg 51, limiting column 52, close rotating shaft 53, oblique telescopic short rod 54, vertical telescopic short rod 55; the construction of underground continuous wall close to high-voltage iron tower adopts height-limiting net-frame combined early warning and control technology; the construction of underground continuous wall close to high-voltage iron tower adopts fast assembly and disassembly shoulder beam steel cage segmented lifting technology; the construction of underground continuous wall close to high-voltage iron tower adopts steel cage membrane covering anti-seepage technology.

[0049] In this embodiment, the height limit net-frame combined early warning and control technology: before the construction of the ground-connected wall 22, a height limit net-frame combined early warning device 24 is set below the high-voltage line influence area 26 below the high-voltage line 25; the height limit frame is composed of a steel pipe 15 assembled in sections through a flange 3, and the bottom plate 1 is pre-buried and installed through pre-buried screws 23, wherein the bottom steel pipe 15 is placed in the sleeve 2 of the bottom plate 1, and a telescopic connecting rod 12 is set at the center of the top steel pipe 15 to be fixed to the shelf plate 6, and two jacks 5 are symmetrically set on the left and right, and the elevation of the automatic early warning device 11 is changed by adjusting the jack 5, and the laser detection beam formed by the automatic early warning device 11 is used to monitor the safe distance between the lifting equipment or the steel cage and the high-voltage line 25 in real time; the height limit net is installed on the column 7 fixed to the steel pipe 15 through the first connecting rod 14, and the square slider 16 is placed in the slide 4 provided on the column 7, and an end plate 18 with a lifting ring 21 is installed at its end; a second connecting rod 17 is arranged between adjacent square sliders 16 to ensure the integrity of the structure; both ends of the height-limiting horizontal rope 20 are fixed to the lifting ring 21, and the height-limiting vertical ropes 19 are evenly arranged at intervals to form a height-limiting net; a cross bar 9 is provided on the top of the column 7, and a rib plate 10 is installed to strengthen the connection; a pair of fixed pulleys 8 are installed on the cross bar 9, and one end of the rope 13 on the fixed pulley 8 is fixed on the end plate 18, and the other end is controlled by the operator, and by stretching it downward, the height-limiting net assembled on the ground moves upward along the slide 4 and is quickly put into place; a first-level lifting prevention and control measure is formed by the height-limiting net, and a second-level lifting prevention and control measure is formed by the automatic early warning device 11. When the lifting distance is less than the set safety threshold, an alarm is issued in time.

[0050] In this embodiment, a technology for rapidly assembling and disassembling a shoulder pole beam steel cage and lifting it in sections is adopted: each section of the ground-connected wall steel cage 27 is lifted by two machines, and the main crane 28 and the auxiliary crane are lifted and lifted together. After the ground-connected wall steel cage 27 is completely vertical to the ground, the auxiliary crane is evacuated, and the steel cage is lowered to the designed elevation by the main crane 28, and the assembled shoulder pole beam 29 is quickly installed. The assembled shoulder pole beam 29 is provided with arc-shaped steel bar limiting grooves 31 on the left and right sides to accommodate the ground-connected wall steel bars 41, and the next section of the ground-connected wall steel cage 27 is welded and installed; the assembled shoulder pole beam 29 is assembled by shoulder pole beam sections 32 that are symmetrical on both sides, and is quickly installed by inserting the pins 35 thereon into the sockets 34; the assembled slider 40 is placed in the limiting track 30 provided in the slot at the bottom of the shoulder pole beam section 32, and the limiting assembly 37 is installed at the bottom of the assembled slider 40, and a positioning pin 36 is provided below the assembly to be fixed to the ground, and adjacent sliders are connected by connecting blocks 39 and adjusting short columns 38.

[0051] In this embodiment, the steel cage coating and anti-seepage technology is adopted: an upper support frame 50 is installed on one side of the bottom bracket 42 of the film laminating machine, and a triangular bracket 43 is installed on the other side. The rotating shaft 44 is placed on the triangular bracket 43, and an anti-seepage membrane 45 is placed on it; an inclined support leg 51 is installed on the upper support frame 50, and an oblique telescopic short rod 54 for installing a limiting column 52 is provided at its end, which is placed close to the rotating shaft 53 and placed on the oblique telescopic short rod 54. Adjacent rotating shafts are connected by a vertical telescopic short rod 55, and the operation close to the rotating shaft 53 ensures that the anti-seepage membrane 45 and the ground-connected wall steel cage 27 fit tightly and leak-proof; in the process of coating the steel cage, U-shaped limit blocks 49 are provided on both sides of the steel cage, and a membrane limit groove 47 is grooved on one side of the limit block, so that the anti-seepage membrane 45 is coated downward along the groove; an L-shaped fixing block 48 is installed on the U-shaped limit block 49 to fit tightly to the ground-connected wall steel cage 27 to ensure that the structure is tightly fixed.

[0052] Example 2

[0053] Based on the same concept, the construction method of the underground continuous wall adjacent to the high-voltage iron tower includes the following steps:

[0054] Step 1, installation of height-limiting net-frame combined warning device: Before the construction of the ground-connected wall 22, a height-limiting net-frame combined warning device 24 is set below the high-voltage line influence area 26 below the high-voltage line 25; the height-limiting frame is composed of steel pipes 15 assembled in sections through flanges 3, and the bottom plate 1 is pre-buried and installed through pre-buried screws 23, wherein the bottom steel pipe 15 is placed in the sleeve 2 of the bottom plate 1, and a telescopic connecting rod 12 is set at the center of the top steel pipe 15 to fix it with the shelf plate 6, and two jacks 5 are symmetrically set on the left and right. By adjusting the jacks 5, the elevation of the automatic warning device 11 is changed, and the laser detection beam formed by the automatic warning device 11 is used to monitor the safe distance between the lifting equipment or the steel cage and the high-voltage line 25 in real time; the height-limiting net is installed on the column 7 fixed to the steel pipe 15 through the first connecting rod 14, and the square slider 16 It is placed in the slide 4 provided on the column 7, and an end plate 18 with a lifting ring 21 is installed at its end; a second connecting rod 17 is arranged between adjacent square sliders 16 to ensure the integrity of the structure; both ends of the height-limiting horizontal rope 20 are fixed on the lifting ring 21, and the height-limiting vertical ropes 19 are evenly arranged at intervals to form a height-limiting net; a cross bar 9 is provided on the top of the column 7, and a rib plate 10 is installed to strengthen the connection; a pair of fixed pulleys 8 are installed on the cross bar 9, and one end of the rope 13 on the fixed pulley 8 is fixed on the end plate 18, and the other end is controlled by the operator, and by stretching it downward, the height-limiting net assembled on the ground moves upward along the slide 4 and is quickly put into place; a first-level lifting prevention and control measure is formed by the height-limiting net, and a second-level lifting prevention and control measure is formed by the automatic early warning device 11. When the lifting distance is less than the set safety threshold, an alarm is issued in time.

[0055] Step 2: Lift the steel cage in sections with two machines: Each section of the ground-connected wall steel cage 27 is lifted with two machines, and the main crane 28 and the auxiliary crane lift it together. After the ground-connected wall steel cage 27 is completely vertical to the ground, the auxiliary crane is removed, and the main crane 28 lowers the steel cage to the designed elevation, and the assembled shoulder beam 29 is quickly installed.

[0056] Step 3: Quickly assemble and disassemble the shoulder pole beam and install it: arc-shaped steel bar limit grooves 31 are set on the left and right sides of the assembled shoulder pole beam 29 to accommodate the ground wall steel bars 41, and the next section of the ground wall steel bar cage 27 is welded and installed; the assembled shoulder pole beam 29 is assembled from left and right symmetrical shoulder pole beam segments 32, and is quickly installed by inserting the pins 35 on it into the sockets 34; the assembled slider 40 is placed in the limit track 30 slotted at the bottom of the shoulder pole beam segment 32, and a limit assembly 37 is installed at the bottom of the assembled slider 40, a positioning pin 36 is set below the assembly to fix it to the ground, and adjacent sliders are connected by connecting blocks 39 and adjusting short columns 38.

[0057] Step 4: Construction of steel cage covering: After the steel cage is lowered, a membrane laying machine is used to lay the anti-seepage membrane 45 together with the steel cage; before the shoulder pole is inserted, a rectangular hole is cut out at the shoulder pole hole of the membrane with a cutter, and after the rope is replaced, the rectangular hole is repaired by pasting. An upper support frame 50 is installed on one side of the bottom bracket 42 of the film laminating machine, and a triangular bracket 43 is installed on the other side. The rotating shaft 44 is placed on the triangular bracket 43, and an anti-seepage membrane 45 is placed on it; an inclined support leg 51 is installed on the upper support frame 50, and an oblique telescopic short rod 54 for installing a limiting column 52 is provided at its end, which is placed close to the rotating shaft 53 and placed on the oblique telescopic short rod 54. Adjacent rotating shafts are connected by a vertical telescopic short rod 55. By running close to the rotating shaft 53, it is ensured that the anti-seepage membrane 45 and the ground-connected wall steel cage 27 fit tightly and leak-proof; in the process of coating the steel cage, U-shaped limit blocks 49 are provided on both sides of the steel cage, and a membrane limit groove 47 is grooved on one side of the limit block, so that the anti-seepage membrane 45 is coated downward along the groove; an L-shaped fixing block 48 is installed on the U-shaped limit block 49 to fit closely to the ground-connected wall steel cage 27 to ensure that the structure is tightly fixed.

[0058] Step 5. Connect the upper and lower steel cages: After the upper steel cage is in place and the film is applied, align the upper and lower axes of the steel cage, connect all joints, quickly tighten the steel connectors and weld the upper and lower segment steel cages, slowly lower the steel cage, and repeat steps 2 to 4 until the installation of the ground-connected wall steel cage is completed.

[0059] Step 6. Concrete pouring: Prepare concrete according to design requirements and pour concrete using a conduit. After pouring, properly maintain the concrete.

[0060] The parts not described in detail in this application are prior art, so this application does not describe them in detail.

[0061] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0062] Although this article uses more professional terms, it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of this application; interpreting them as any additional restrictions is contrary to the spirit of this application.

[0063] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other forms of products under the inspiration of this application. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present application.

Claims

1. A method for constructing an underground continuous wall adjacent to a high-voltage iron tower, characterized in that: The following steps are involved: Step 1: Installation of height-limiting net-frame combined warning device: a height-limiting net-frame combined warning device (24) is installed below the area (26) affected by the high-voltage line (25), the elevation of the automatic warning device (11) is changed by adjusting the jack (5), and the laser detection beam formed by the automatic warning device (11) is used to monitor the safety distance between the lifting equipment or the steel cage and the high-voltage line (25) in real time; Step 2: lifting the steel cage by two machines in sections: each section of the ground-connected wall steel cage (27) is lifted by two machines, and the main crane (28) and the auxiliary crane are lifted together. After the ground-connected wall steel cage (27) is completely vertical to the ground, the auxiliary crane is removed, and the steel cage is lowered to the designed elevation by the main crane (28), and the assembled shoulder beam (29) is quickly installed; Step 3: Quickly assemble and disassemble the shoulder pole beam and install it: Arcuate steel bar limiting grooves (31) are arranged on the left and right sides of the assembled shoulder pole beam (29) to accommodate the ground wall steel bars (41), and the next section of the ground wall steel bar cage (27) is welded and installed; the assembled shoulder pole beam (29) is assembled from the shoulder pole beam sections (32) that are symmetrical on both sides, and is quickly installed by inserting the pins (35) on it into the insertion holes (34); Step 4: Construction of steel cage film covering: After the steel cage is lowered, a film laying machine is used to lay the anti-seepage membrane (45) together with the steel cage; before the shoulder pole is inserted, a rectangular hole is cut out at the shoulder pole hole of the membrane with a cutter, and after the rope is replaced, the rectangular hole is repaired by pasting; Step 5: Connect the upper and lower steel cages: After the upper steel cage is in place and the film is applied, align the upper and lower axes of the steel cage, connect all joints, quickly tighten the steel connectors and weld the upper and lower steel cages, slowly lower the steel cage, and repeat steps 2 to 4 until the hoisting construction of the ground-connected wall steel cage is completed; Step 6. Concrete pouring: Prepare concrete according to design requirements and pour concrete using a conduit. After pouring, properly maintain the concrete.

2. The method for constructing an underground continuous wall adjacent to a high-voltage iron tower according to claim 1, characterized in that: In step 1, the height-limiting grid-frame combined warning device (24) comprises: The height-limiting frame is composed of steel pipes (15) assembled in sections through flanges (3), the bottom steel pipe (15) is placed in the sleeve (2) of the bottom plate (1), and a telescopic connecting rod (12) is arranged at the center of the top steel pipe (15) to be fixed to the shelf plate (6); Automatic warning device (11): installed on the top of the height limit frame, monitoring the safe distance between the lifting equipment or the steel cage and the high-voltage line (25) in real time through a laser detection beam; The height limiting net is installed on a column (7) fixed to a steel pipe (15) through a first connecting rod (14). A square slider (16) is placed in a slide groove (4) on the column (7), and an end plate (18) provided with a lifting ring (21) is installed at the end thereof.

3. The method for constructing an underground continuous wall adjacent to a high-voltage iron tower according to claim 1, characterized in that: In step 3, the installation of the quick-install and disassemble shoulder pole beam includes: The assembled shoulder-pole beam (29) is assembled from shoulder-pole beam segments (32) that are symmetrical on both sides, and can be quickly assembled by inserting the latch (35) on the shoulder-pole beam into the insertion hole (34); Arc-shaped steel bar limiting grooves (31): arranged on the left and right sides of the assembled shoulder beam (29), and used for accommodating the ground-connected wall steel bars (41); The limit track (30) and the combined slider (40) are placed in the limit track (30) provided in the bottom slot of the shoulder beam segment (32), a limit assembly (37) is installed at the bottom, and a positioning pin (36) is provided below to be fixed to the ground.

4. The method for constructing an underground continuous wall adjacent to a high-voltage iron tower according to claim 1, characterized in that: In step 4, the steel cage membrane anti-seepage includes: Film laminating machine: an upper support frame (50) is installed on one side of a bottom bracket (42), and a triangular bracket (43) is installed on the other side. A rotating shaft (44) is placed on the triangular bracket (43), and an anti-seepage membrane (45) is placed thereon; Closely fitting the rotating shaft (53): by running the close fitting rotating shaft (53), it is ensured that the anti-seepage membrane (45) and the ground-connected wall steel cage (27) are closely fitted and watertight; U-shaped limit blocks (49) and L-shaped fixing blocks (48): U-shaped limit blocks (49) are provided on both sides of the steel cage, and a film limit groove (47) is provided on one side so that the anti-seepage membrane (45) can be coated downward along the groove. The L-shaped fixing blocks (48) are installed on the U-shaped limit blocks (49) to closely contact the ground-connected wall steel cage (27).

5. The underground continuous wall next to the high-voltage iron tower is characterized by: The underground continuous wall adjacent to the high-voltage iron tower is constructed by the construction method described in any one of claims 1 to 4.

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