Installation platform and construction method of underground continuous wall reinforcement cage

Abstract

The present invention relates to an installation stand and a construction method for an underground continuous wall steel cage, comprising: a base part, the base part is arranged on a foundation pit and partially connected with the foundation pit; an annular slide, the annular slide is arranged on the base part, and the annular slide is cocentric with the base part; a stand, one end of the stand is rotatably arranged at the center of the base part, and the other end of the stand is movably connected to the annular slide through a walking mechanism; a lifting mechanism, the lifting mechanism is arranged at the top of the stand. The present invention can build the base part and the stand near the foundation pit, and workers cooperate with a crane to transport steel bars to the stand. Workers fix part of the secondary bars or vertical bars on the lifting mechanism on the construction platform, and workers fix part of the main bars or transverse bars on the fixing mechanism on the construction platform, and simultaneously start to complete the binding work of the steel cage until it is completed. This operation overcomes the large-scale site requirement in the process of making the steel cage and can be directly completed at a longitudinal height.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to an installation stand and a construction method for an underground continuous wall reinforcement cage. Background Art

[0002] Metallurgical plants, such as continuous casting and rolling mills, are often equipped with deep foundation pit structures such as cyclone pools. Diaphragm walls are often constructed as part of the main structure. However, diaphragm walls often require a large area for steel cage binding. Metallurgical plants have a compact layout, a short construction period, and multiple disciplines involved in cross-construction, which hinders diaphragm wall construction.

[0003] The existing published patent number CN111778961A is a ground-anchored wall reinforcement cage production line layout and hoisting process, which is not restricted by the flatness of the surrounding terrain and allows a large difference in terrain height between the reinforcement cage production area and the reinforcement cage hoisting operation area. Its technical solution is to arrange the reinforcement cage production line at right angles near the foundation pit to form an area for crawler crane operation. This patent locates the reinforcement manufacturing plant outside the construction site for construction, and cannot solve the problem of improving the reinforcement cage binding efficiency when the site is compact. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the technical problem of the binding limitation of the narrow steel cage production site in the prior art and provide an underground continuous wall steel cage installation stand and a construction method.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an underground continuous wall reinforcement cage installation stand and construction method, comprising:

[0006] a base portion, the base portion being disposed on the foundation pit and partially connected thereto;

[0007] an annular chute, the annular chute being provided on the base portion, and the annular chute and the base portion being cocentric;

[0008] a platform, one end of which is rotatably arranged at the center of the base portion, and the other end of which is movably connected to the annular slide groove via a walking mechanism;

[0009] A lifting mechanism, which is arranged at the top of the platform and can fix the vertical reinforcement and move up and down;

[0010] Construction platforms, wherein the four construction platforms are arranged on the platform in pairs of mirror images;

[0011] The fixing mechanism is provided at eight locations on the inner side of the frame, and every two fixing mechanisms are adjacent to both sides of each construction platform, and the fixing mechanism can fix the transverse reinforcement.

[0012] Furthermore, the base portion includes a first base arranged on the ground, and a second base arranged outside the first base;

[0013] A gap is left between the first base and the second base to connect the foundation pit sections;

[0014] The gap can be used to place the reinforcement cage.

[0015] Furthermore, the walking mechanism includes an arc-shaped rod arranged at the bottom of the platform, a plurality of ball grooves arranged on the bottom surface, inner side surface and outer side surface of the arc-shaped rod, and a plurality of supporting balls rollingly arranged in the plurality of ball grooves;

[0016] The arc-shaped rod and the annular sliding groove are cocentric;

[0017] The supporting balls in three directions contact the three surfaces of the sliding groove respectively.

[0018] Furthermore, the lifting mechanism includes a roller chain hoist provided at the top of the platform, a lifting platform connected to the roller chain hoist, a frame groove provided at the bottom end of the lifting platform, four strip grooves provided in four directions on the side ends of the lifting platform, four adjustment parts provided in the four strip grooves, a plurality of strip holes provided through each of the strip grooves, a plurality of interference blocks provided in the plurality of strip holes, and a plurality of springs connected between the plurality of interference blocks and the adjustment parts;

[0019] The vertical ribs are inserted toward the frame grooves to push the abutment block sideways, so that the vertical ribs are positioned when the spring is compressed.

[0020] Furthermore, the interference block is configured as a right-angled trapezoid, and the inclined surface of the right-angled trapezoid rises from the center of the lifting platform toward the outer extension of the lifting platform;

[0021] The said interference block is provided with a plurality of interference grooves on the vertical surface facing the center of the lifting platform and adjacent to the inclined surface of the right-angled trapezoid;

[0022] Some of the interference grooves can interfere with the vertical ribs.

[0023] Furthermore, the adjustment portion includes a closing plate closing the bar groove, a movable plate arranged in the bar groove and connected to a plurality of the springs, and an adjustment bolt spirally inserted into the closing plate;

[0024] One end of the adjusting bolt is rotatably connected to the movable plate.

[0025] Furthermore, the fixing mechanism includes a bracket arranged on the inner side of the platform, a rotating wheel hingedly arranged on the bracket, and two groups of first movable rods arranged in a V shape on the rotating wheel;

[0026] The two groups of the first movable rods can position and support the transverse ribs.

[0027] Furthermore, the fixing mechanism further includes a plurality of gear blocks arranged in a semicircular pattern on the rotating wheel, an insertion hole provided on the stand, a movable column inserted in the insertion hole, and a plurality of disks arranged in an array on the movable column;

[0028] A plurality of the discs are capable of engaging with a plurality of the gear blocks;

[0029] By pulling the movable column, the plurality of discs can drive the plurality of gear blocks to rotate, so that the plurality of discs drive the two groups of the first movable rods to rotate and then the transverse ribs are removed.

[0030] Furthermore, the fixing mechanism further includes a circular cavity laterally centered and connected to the through hole and disposed on the stand, a plurality of fixing plates disposed on the lower half of the circular cavity, and a second movable rod disposed on the movable column;

[0031] The second movable rod can be inserted into the gap between two adjacent fixing plates.

[0032] Furthermore, the construction method of the underground continuous wall reinforcement cage installation stand is as follows:

[0033] S1. After the construction of the foundation pit guide wall is completed, the gantry is installed.

[0034] S2. After the installation of the platform is completed, the workers cooperate with the crane to transport the steel bars to the platform. The steel workers tie the steel cage on the platform. After the main bars of the steel cage are tied, the main bars of the steel cage are fixed by the fixing mechanism. At the same time, the top lifting device also fixes the main bars to form the steel cage skeleton. The workers tie the secondary bars on the construction platform until the steel cage is tied.

[0035] S3, after the reinforcement cage is tied, the underground continuous wall begins to be slotted. After the slotting is completed, the walking mechanism is started to transport the reinforcement cage to the top of the slot.

[0036] S4, release the fixing mechanism on the stand, slowly lower the steel cage to the specified elevation through the lifting mechanism, fix the steel cage, release the lifting device, and complete the steel cage lowering operation.

[0037] S5. After the steel cage is lowered, the gantry moves to the next one and repeats the steps until all the steel cages of the underground continuous wall are installed.

[0038] The beneficial effect of the present invention is that the base and the platform can be built near the foundation pit, and workers cooperate with the crane to transport the steel bars to the platform. The workers fix part of the secondary bars or vertical bars on the lifting mechanism on the construction platform, and the workers fix part of the main bars or transverse bars on the fixing mechanism on the construction platform, and simultaneously start and complete the binding work of the steel cage until it is completed. This operation overcomes the large-scale site requirement in the process of making the steel cage, and can be completed directly at a vertical height;

[0039] After the steel cage is separated from the fixing mechanism, the lifting mechanism can be lowered to allow the steel cage to be directly buried in the prefabricated foundation pit, avoiding the traditional method of using a crane to flip the steel cage vertically into the groove, thus simplifying the steps;

[0040] Furthermore, the angle of the platform can be changed by moving the walking mechanism, thereby changing the position of the next formed steel cage, so that the steel cage can continuously enter the prefabricated foundation pit, thereby improving its work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below with reference to the accompanying drawings and examples.

[0042] Figure 1 This is a three-dimensional diagram of the steel cage in the binding state of the present invention;

[0043] Figure 2 This is a three-dimensional diagram of the steel cage of the present invention in a descending state;

[0044] Figure 3 is a three-dimensional diagram of the fixing mechanism of the present invention;

[0045] Figure 4 This is a schematic diagram of the interior of the fixing mechanism of the present invention;

[0046] Figure 5 The present invention Figure 4 Enlarged view of point A in the middle;

[0047] Figure 6 is a three-dimensional diagram of the lifting mechanism of the present invention;

[0048] Figure 7 It is a three-dimensional diagram of the interference block of the present invention;

[0049] Figure 8 This is a partial internal schematic diagram of the lifting mechanism when viewed from above;

[0050] Figure 9 It is a schematic diagram of the walking mechanism when viewed from above.

[0051] In the picture:

[0052] 1. Base portion; 11. First base; 12. Second base; 2. Annular slide; 3. Stand; 4. Traveling mechanism; 41. Arc rod; 42. Ball groove; 43. Support ball; 5. Lifting mechanism; 51. Roller chain hoist; 52. Lifting platform; 53. Frame groove; 54. Strip groove; 55. Adjusting portion; 551. Closing plate; 552. Movable plate; 553. Adjusting bolt; 56. Strip hole; 57. Interference block; 58. Spring; 59. Interference groove; 6. Construction platform; 7. Fixing mechanism; 71. Bracket; 72. Rotating wheel; 73. First movable rod; 74. Tooth block; 75. Through hole; 76. Movable column; 77. Disc; 78. Circular cavity; 79. Fixing plate; 8. Second movable rod. DETAILED DESCRIPTION

[0053] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0054] like Figure 1-9 As shown, the present invention provides an underground continuous wall reinforcement cage installation stand and a construction method, including:

[0055] A base portion 1, the base portion 1 is arranged on the foundation pit and partially connected thereto; the base portion 1 may be made of a steel material capable of bearing weight;

[0056] an annular chute 2, the annular chute 2 being provided on the base portion 1, and the annular chute 2 and the base portion 1 being cocentric;

[0057] The platform 3 has one end rotatably disposed at the center of the base portion 1 and the other end movably connected to the annular chute 2 via a walking mechanism 4; the platform 3 is formed by splicing rigid steel sections;

[0058] A lifting mechanism 5 is provided at the top of the platform 3 and is capable of fixing the vertical ribs and lifting and lowering;

[0059] Construction platforms 6, wherein the construction platforms 6 are arranged on the platform 3 in pairs and in mirror images at four locations;

[0060] The fixing mechanism 7 is provided at eight locations on the inner side of the platform 3, and every two fixing mechanisms 7 are adjacent to both sides of each construction platform 6. The fixing mechanism 7 can fix the transverse reinforcement. Specifically, the underground continuous wall reinforcement cage installation platform and construction method of the present invention are improved by installing the platform 3 to lay the reinforcement cage flat and tie it, turning it over by crane, and lowering the reinforcement cage to the platform 3 to tie the reinforcement cage directly, and vertically suspend the reinforcement cage, thereby improving the plane construction to space construction, saving the plane of the reinforcement manufacturing plant and breaking through the site limitation. The underground continuous wall reinforcement cage tying and suspending are streamlined, eliminating the steps of turning over the reinforcement cage and lifting the large piece by crane, thereby improving production efficiency.

[0061] Optionally, the base portion 1 includes a first base 11 disposed on the ground, and a second base 12 disposed outside the first base 11;

[0062] A gap is left between the first base 11 and the second base 12 to connect the foundation pit sections;

[0063] The gap can be used to place a steel cage. Specifically, the first base 11 and the second base 12 are set to be coaxial polygons, and the inner wall of the first base 11 and the outer wall of the second base 12 are parallel to each other, so that the rectangular steel cage segments can enter the gap without hindrance. The interior of the first base 11 is set to be hollow, and an external motor that can drive the stand 3 can be placed to meet the needs.

[0064] Optionally, the walking mechanism 4 includes an arc-shaped rod 41 provided at the bottom of the platform 3, a plurality of ball grooves 42 provided on the bottom, inner side and outer side of the arc-shaped rod 41, and a plurality of supporting balls 43 rollingly provided in the plurality of ball grooves 42;

[0065] The arc-shaped rod 41 is coaxial with the annular chute 2;

[0066] The several support balls 43 in three directions contact the three surfaces of the slide groove respectively. Specifically, the walking mechanism 4 can be driven manually or electrically. The motor can drive the connection point with the platform 3 on the second base 12 to rotate the platform 3. The rotation of the platform 3 can also adopt other forms. When the platform 3 rotates, the arc rod 41 drives the several support balls 43 in three directions to rotate frictionally in the annular slide groove 2, so that the rotation trajectory of the platform 3 reduces the resistance under the premise of limiting, so that the platform 3 runs smoothly, and the ball groove 42 is set to a size that the support ball 43 can roll and be inseparable.

[0067] Optionally, the lifting mechanism 5 includes a roller chain hoist 51 provided at the top of the platform 3, a lifting platform 52 connected to the roller chain hoist 51, a frame groove 53 provided at the bottom end of the lifting platform 52, four strip grooves 54 provided in four directions on the side ends of the lifting platform 52, four adjusting parts 55 provided in the four strip grooves 54, a plurality of strip holes 56 provided through each of the strip grooves 54, a plurality of strip holes 56 vertically connected to the frame groove 53, a plurality of interference blocks 57 provided in the plurality of strip holes 56, and a plurality of springs 58 connected between the plurality of interference blocks 57 and the adjusting parts 55;

[0068] The vertical reinforcement is inserted toward the frame groove 53 and can push the resistance block 57 sideways to position the vertical reinforcement when the spring 58 is compressed. Specifically, the roller chain hoist 51 can also be replaced by other hoists. The frame groove 53 can limit the positioning trajectory of the vertical reinforcement. The vertical reinforcement can be inserted vertically along the frame groove 53. During the process, the vertical reinforcement rubs the resistance block 57. The resistance block 57 is forced to move in the direction away from the frame groove 53 and close to the bar hole 56, so that the spring 58 is compressed to store energy. After the force state of the resistance block 57 disappears, the spring 58 releases the energy storage and allows the vertical reinforcement to be clamped between the resistance block 57 and the frame groove 53. It allows multiple vertical reinforcements to be positioned and clamped, freeing the hands of the construction workers and providing good auxiliary support for the binding operation of the steel cage.

[0069] Optionally, the abutment block 57 is configured as a right-angled trapezoid, and the inclined surface of the right-angled trapezoid rises from the center of the lifting platform 52 toward the outer extension of the lifting platform 52;

[0070] The said interference block 57 is provided with a plurality of interference grooves 59 on the vertical surface facing the center of the lifting platform 52 and adjacent to the inclined surface of the right-angled trapezoid;

[0071] Several of the above-mentioned interference grooves 59 can interfere with the vertical ribs. Specifically, when the vertical ribs are inserted into the frame grooves 53 and rub against the interference blocks 57, they first rub against the inclined surface of the interference blocks 57 and then against the vertical surface of the interference blocks 57, so that the positioning and clamping process of the vertical ribs has a process from loose to tight and is more stable. Several interference grooves 59 can increase the clamping angle and clamping area of ​​the vertical ribs, so that the vertical ribs are firmly and comprehensively stressed.

[0072] Optionally, the adjusting portion 55 includes a closing plate 551 closing the slot 54 , a movable plate 552 disposed in the slot 54 and connected to the springs 58 , and an adjusting bolt 553 spirally inserted into the closing plate 551 ;

[0073] One end of the adjusting bolt 553 is rotatably connected to the movable plate 552. Specifically, the thickness of the closing plate 551 is less than the depth of the strip groove 54. Space is reserved in the process of closing the strip groove 54. The strip groove 54 can limit the movable trajectory of the movable plate 552. By adjusting the spiral rotation of the adjusting bolt 553, the movable plate 552 drives the resistance block 57 to open the distance from the frame groove 53, thereby eliminating the positioning force of the vertical reinforcement and facilitating the separation of the vertical reinforcement in the vertical direction, making the operation of entering the pit after the steel cage is hoisted to the specified position more flexible.

[0074] Optionally, the fixing mechanism 7 includes a bracket 71 provided on the inner side of the stand 3, a rotating wheel 72 hingedly provided on the bracket 71, and two sets of first movable rods 73 provided in a V shape on the rotating wheel 72;

[0075] The two groups of the first movable rods 73 can position and support the transverse reinforcement. Specifically, the two groups of the first movable rods 73 and the rotating wheel 72 form a space that gradually shrinks from top to bottom. The transverse reinforcement falling into this space can be quickly placed and positioned without moving, which is convenient for binding and combining with the vertical reinforcement, so that the transverse reinforcement cannot move in the horizontal direction, thereby ensuring the accuracy of the binding position.

[0076] Optionally, the fixing mechanism 7 further includes a plurality of gear blocks 74 arranged in a semicircular pattern on the rotating wheel 72, an insertion hole 75 provided on the platform 3, a movable column 76 inserted in the insertion hole 75, and a plurality of disks 77 arranged in an array on the movable column 76;

[0077] The plurality of discs 77 can engage with the plurality of tooth blocks 74;

[0078] By pulling the movable column 76, the plurality of discs 77 can drive the plurality of tooth blocks 74 to rotate, so that the plurality of discs 77 drive the two groups of the first movable rods 73 to rotate and then remove the transverse reinforcement. Specifically, the distribution angle of the plurality of tooth blocks 74 is greater than one hundred and eighty degrees, ensuring a continuous engagement state with the plurality of discs 77. After the steel cage binding work is completed, the movable column 76 can be pulled radially in the insertion hole 75 to make the plurality of discs 77 act on the plurality of tooth blocks 74 and make the discs 77 drive the two groups of the first movable rods 73 to rotate clockwise, which facilitates the positioning and release of the transverse reinforcement and allows the steel cage to be lowered into the foundation pit without obstruction.

[0079] Optionally, the fixing mechanism 7 further includes a circular cavity 78 that is laterally centrally connected to the insertion hole 75 and disposed on the stand 3 , a plurality of fixing plates 79 disposed in the lower half of the circular cavity 78 , and a second movable rod 8 disposed on the movable column 76 ;

[0080] The second movable rod 8 can be inserted into the gap between the two adjacent fixed plates 79. Specifically, when the movable column 76 moves, it drives the second movable rod 8 to move back and forth in the circular cavity 78, ensuring that the movable column 76 will not separate from the insertion hole 75 during radial movement, and the movable column 76 can drive the second movable rod 8 to rotate in the circular cavity 78. When the second movable rod 8 is inserted into the gap between any two fixed plates 79, the front and rear movable positions of the movable column 76 are locked, and the disc 77 drives the adjustment angle of the rotating wheel 72 through the tooth block 74 to be maintained, thereby maintaining the adjustment angles of the two groups of first movable rods 73, meeting the balancing effect of the combination and separation of the transverse ribs of the two groups of first movable rods 73, and avoiding the angles and positions of the two groups of first movable rods 73 from being disturbed by external forces.

[0081] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. The underground continuous wall reinforcement cage installation stand is characterized by: include: A base portion (1), the base portion (1) being arranged on the foundation pit and partially connected thereto; An annular chute (2), the annular chute (2) being arranged on the base portion (1), and the annular chute (2) and the base portion (1) being cocentric; A stand (3), one end of the stand (3) being rotatably arranged at the center of the base portion (1), and the other end of the stand (3) being movably connected to the annular slide groove (2) via a walking mechanism (4); A lifting mechanism (5), the lifting mechanism (5) is arranged at the top of the platform (3), and the lifting mechanism (5) is capable of fixing the vertical ribs and lifting and lowering; A construction platform (6), wherein the construction platforms (6) are arranged on the platform (3) in pairs in a mirror-image manner at four locations; A fixing mechanism (7), wherein eight fixing mechanisms (7) are arranged on the inner side of the platform (3), and each two fixing mechanisms (7) are adjacent to both sides of each construction platform (6), and the fixing mechanisms (7) are capable of fixing transverse reinforcement; The base portion (1) comprises a first base (11) arranged on the ground, and a second base (12) arranged outside the first base (11); A gap is left between the first base (11) and the second base (12) to connect the foundation pit sections; The gap can be used to place the reinforcement cage.

2. The underground continuous wall reinforcement cage installation stand according to claim 1, characterized in that: The walking mechanism (4) includes an arc-shaped rod (41) arranged at the bottom of the platform (3), a plurality of ball grooves (42) arranged on the bottom surface, inner side surface and outer side surface of the arc-shaped rod (41), and a plurality of supporting balls (43) rollingly arranged in the plurality of ball grooves (42); The arc-shaped rod (41) and the annular sliding groove (2) are cocentric; A plurality of the supporting balls (43) in three directions respectively contact the three surfaces of the slide groove.

3. The underground continuous wall reinforcement cage installation stand according to claim 2, characterized in that: The lifting mechanism (5) includes a roller chain hoist (51) arranged at the top of the platform (3), a lifting platform (52) connected to the roller chain hoist (51), a frame groove (53) arranged at the bottom end of the lifting platform (52), four strip grooves (54) arranged in four directions at the side ends of the lifting platform (52), four adjustment parts (55) arranged in the four strip grooves (54), a plurality of strip holes (56) arranged through each of the strip grooves (54), a plurality of interference blocks (57) arranged in the plurality of strip holes (56), and a plurality of springs (58) connected between the plurality of interference blocks (57) and the adjustment parts (55); The vertical ribs are inserted toward the frame groove (53) and can push the abutment block (57) sideways, so that the vertical ribs are positioned when the spring (58) is compressed.

4. The underground continuous wall reinforcement cage installation stand according to claim 3, characterized in that: The abutment block (57) is configured as a right-angled trapezoid, and the inclined surface of the right-angled trapezoid rises from the center of the lifting platform (52) toward the outer extension of the lifting platform (52); The said resistance block (57) is provided with a plurality of resistance grooves (59) on a vertical surface facing the center of the lifting platform (52) and adjacent to the inclined surface of the right-angled trapezoid; Several of the abutment grooves (59) are capable of abutting against the vertical ribs.

5. The underground continuous wall reinforcement cage installation stand according to claim 4, characterized in that: The adjusting portion (55) includes a closing plate (551) closing the strip groove (54), a movable plate (552) disposed in the strip groove (54) and connected to a plurality of the springs (58), and an adjusting bolt (553) spirally inserted into the closing plate (551); One end of the adjusting bolt (553) is rotatably connected to the movable plate (552).

6. The underground continuous wall reinforcement cage installation stand according to claim 1, characterized in that The fixing mechanism (7) comprises a bracket (71) arranged on the inner side of the platform (3), a rotating wheel (72) hingedly arranged on the bracket (71), and two groups of first movable rods (73) arranged in a V shape on the rotating wheel (72); The two groups of the first movable rods (73) are capable of positioning and supporting the transverse ribs.

7. The underground continuous wall reinforcement cage installation stand according to claim 6, characterized in that The fixing mechanism (7) further includes a plurality of gear blocks (74) arranged in a semicircular pattern on the rotating wheel (72), an insertion hole (75) arranged on the stand (3), a movable column (76) inserted through the insertion hole (75), and a plurality of disks (77) arranged in an array on the movable column (76); A plurality of the discs (77) are capable of engaging with a plurality of the tooth blocks (74); By pulling the movable column (76), the plurality of discs (77) can drive the plurality of tooth blocks (74) to rotate, so that the plurality of discs (77) drive the two groups of the first movable rods (73) to rotate and then remove the transverse ribs.

8. The underground continuous wall reinforcement cage installation stand according to claim 7 is characterized in that The fixing mechanism (7) further includes a circular cavity (78) laterally centered and connected to the through hole (75) and disposed on the stand (3), a plurality of fixing plates (79) disposed in the lower half of the circular cavity (78), and a second movable rod (8) disposed on the movable column (76); The second movable rod (8) is capable of passing through the gap between two adjacent fixed plates (79).

9. The underground continuous wall reinforcement cage installation stand according to any one of claims 1 to 8, wherein the construction method is: S1, after the construction of the foundation pit guide wall is completed, the stand (3) is installed; S2, after the installation of the platform (3) is completed, the workers cooperate with the crane to transport the steel bars to the platform (3), and the steel workers tie the steel cage on the platform (3). After the main bars of the steel cage are tied, the main bars of the steel cage are fixed by the fixing mechanism (7). At the same time, the top lifting device also fixes the main bars to form a steel cage skeleton. The workers tie the secondary bars on the construction platform (6) until the steel cage is tied. S3, after the reinforcement cage is tied, the underground continuous wall begins to be slotted. After the slotting is completed, the walking mechanism (4) is started to transport the reinforcement cage to the top of the slot; S4, loosen the fixing mechanism (7) on the stand (3), slowly lower the steel cage to the specified elevation through the lifting mechanism (5), fix the steel cage, loosen the lifting device, and complete the steel cage lowering operation; S5, after the steel cage is lowered, the stand (3) moves to the next one and the steps are repeated until all the steel cages of the underground continuous wall are installed.

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