Ultra-deep special-shaped underground diaphragm wall and construction method thereof

Abstract

The invention relates to an ultra-deep special-shaped underground diaphragm wall and a construction method thereof. The construction method comprises the steps that an integral orifice special-shaped guide frame is adopted to assist a slot milling machine in grooving, a rotatable guide frame is adjusted through a supporting mechanism, a special-shaped reinforcement cage is manufactured through a special-shaped reinforcement cage jig frame made of channel steel, and the angle of the jig frame is fixed by rotating second channel steel; a reinforcement cage guide frame is adopted to guide hoisting of a reinforcement cage, a guide ring is arranged to position lowering of the reinforcement cage, an assembly type anti-floating structure is adopted to prevent the reinforcement cage from floating, the anti-floating structure is conveniently installed through mechanical connection, and an anti-streaming structure is adopted to prevent streaming of concrete. Concrete streaming is prevented through anti-streaming profile steel, an iron sheet and a recycled filler bag, meanwhile, a rectangular groove is reserved through a limiting steel box to embed a slurry pump, and slurry pumping is facilitated while groove milling is conducted.

Description

Technical Field

[0001] The present invention relates to construction engineering, in particular to an ultra-deep special-shaped underground continuous wall and a construction method thereof. Background Art

[0002] With the acceleration of urbanization, urban land resources are becoming increasingly scarce, and construction projects are developing in a deeper, higher, and more complex direction, which places higher demands on the bearing capacity and stability of underground foundation pit support structures. However, the limitations of traditional underground continuous walls with uniform rectangular cross-sections are obvious when faced with complex building designs and special geological conditions. They are difficult to meet the foundation requirements of special-shaped buildings and there is a problem of space waste. Moreover, when the depth of the foundation pit exceeds a certain limit, its structural strength and stability are difficult to guarantee, and wall deformation and leakage are prone to occur. Construction in soft soil or deep sand layers is also prone to trench wall collapse, affecting construction progress and quality. In response to the above-mentioned existing problems, an ultra-deep special-shaped underground continuous wall and its construction method are proposed. Summary of the Invention

[0003] The purpose of the present invention is to address the above-mentioned problems existing in the prior art and to provide an ultra-deep special-shaped underground continuous wall and a construction method thereof.

[0004] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solution: The construction method of the ultra-deep special-shaped underground continuous wall includes the following steps: Step 1: Install the integral orifice-shaped guide frame, connect the rotatable guide frame to the second vertical support, place the shaped guide rail on the guide wall, and adjust the position of the rotatable guide frame through the support mechanism; Step 2: Use a slot milling machine to perform the first-stage slotting, complete the slotting in a predetermined order, and ensure the slotting accuracy by adjusting the rotatable guide frame; Step 3: Make a special-shaped steel cage on the flat steel cage frame, and adjust the angle and shape of the steel cage through the special-shaped steel cage frame; Step 4: Hoist the special-shaped steel cage and use the steel cage guide frame and guide ring to guide the steel cage to the designated position; Step 5: Set up an assembled anti-floating structure, which is fixed by vertical connecting rods, horizontal connecting rods and elbows to resist the buoyancy of concrete; Step 6: Carry out anti-circulation treatment, install anti-circulation steel and iron sheets, backfill silt filler bags and compact them, and place limit steel boxes for weighting; Step 7: Remove the anti-floating structure and proceed with the second phase trench construction, repeating the steel cage hoisting, anti-floating and concrete pouring processes.

[0005] Furthermore, the integral hole-shaped guide frame includes a special-shaped guide rail, a support mechanism and a rotatable guide frame. The special-shaped guide rail is placed on the guide wall. The rotatable guide frame is composed of lightweight channel steel and is connected to the support mechanism as a whole. Four sets of support mechanisms are installed on the special-shaped guide rail.

[0006] Furthermore, the support mechanism includes a first vertical support rod, a second vertical support, a rotating support beam, a first fastening nut and a second fastening nut, and the position of the rotatable guide frame is adjusted by cooperating with the vertical support rod and the rotating support beam.

[0007] Furthermore, the special-shaped steel cage frame determines the design angle through the arc-shaped clamping plate, the top of the support rod is made into an external thread structure, the bottom is inserted into the hollow sleeve, and the top is aligned with the internal thread sleeve and tightened.

[0008] Furthermore, the steel cage guide frame is composed of an I-beam and a shoulder pole beam. The I-beam is vertically inserted into the first-stage slot, and the shoulder pole beam passes through the rectangular notch on the top of the I-beam web and is arranged perpendicular to the I-beam.

[0009] Furthermore, iron sheets are installed on both sides of the anti-bypass steel and fixed by locking steel bars to form a blocking frame to prevent concrete from bypassing.

[0010] Furthermore, the limiting steel box is 6m long and is made of closed steel plates, with 1m exposed on the guide wall surface. Several supports are set inside and fixed to the guide wall opening by shoulder poles for weighting and reserving rectangular grooves.

[0011] The ultra-deep special-shaped underground continuous wall is manufactured by adopting the above-mentioned construction method.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is equipped with an integral hole-shaped guide frame, which can closely fit the working requirements of the slot milling machine. Through the equipped support mechanism, the rotatable guide frame can be flexibly adjusted to provide stable and precise guidance for the slot milling machine, ensuring that the slot milling machine operates along the predetermined trajectory, effectively improving the verticality and accuracy of the slot, and ensuring the quality of the underground continuous wall.

[0013] 2. The present invention adopts a special-shaped steel cage frame, which can be adjusted by rotating the second channel steel according to the design requirements of the special-shaped steel cage, thereby improving the flexibility and accuracy of steel cage production and ensuring the quality of the steel cage.

[0014] 3. The present invention adopts a steel cage guide frame to guide the lifting of the steel cage, and sets a guide ring to position the steel cage for lowering, so as to prevent the steel cage from shaking and deformation during the lifting and transportation process, ensure that it reaches the designated position smoothly, and ensure that the steel cage can fall into the groove accurately, avoiding deviations that affect subsequent construction.

[0015] 4. The present invention utilizes a prefabricated anti-floating structure. This structure is conveniently installed via mechanical connections. The simple, secure mechanical connection significantly improves construction efficiency. The prefabricated anti-floating structure can be quickly assembled and implemented based on actual construction requirements, effectively counteracting the buoyancy of concrete and ensuring the stability of the steel cage during pouring.

[0016] 5. The present invention adopts an anti-circumvention structure to form a blocking frame, and the iron sheet further enhances the sealing performance, effectively preventing concrete from circumventing, ensuring that the concrete is filled in the groove according to the design requirements, and ensuring the quality and integrity of the underground continuous wall.

[0017] 6. The present invention reserves a rectangular groove by means of a limit steel box, which is convenient for placing a mud pump. During the groove milling process, the mud pump can pump out the mud in the groove in time, thereby improving the efficiency and quality of the groove milling and ensuring the smooth progress of the entire construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a plan view of the integral orifice special-shaped guide frame of the present invention; Figure 2 This is a structural elevation diagram of the support mechanism of the present invention; Figure 3 This is an elevation view of the special-shaped steel cage frame of the present invention; Figure 4 It is a schematic diagram of the installation of the special-shaped steel bar cage frame of the present invention.

[0019] Figure 5 is a plan view of the steel cage guide frame of the present invention; Figure 6 is an elevational view of a steel cage guide frame of the present invention; Figure 7 This is a vertical view of the steel cage anti-floating structure of the present invention; Figure 8 Schematic diagram of the anti-circumvention plane flow of underground continuous wall concrete of the present invention; Figure 9 This is a cross-sectional view of the underground continuous wall concrete anti-circumvention method of the present invention; Figure 10 It is a flow chart of the construction method of the present invention.

[0020] In the figure, 1. integral hole-shaped special-shaped guide frame; 2. special-shaped guide rail; 3. track; 4. rotatable guide frame; 5. lightweight channel steel; 6. guide wall; 7. rotating support beam; 8. first vertical support rod; 9. second vertical support; 10. notch; 11. support mechanism; 12. lifting ring; 13. first fastening nut; 14. second fastening nut; 15. limit; 16. special-shaped steel cage frame; 17. first channel steel; 18. second channel steel; 19. support rod; 20. flat steel cage frame; 21. crossbeam; 22. rotating shaft; 23. arc-shaped clamping plate; 24. clamping slot; 25. space Core casing; 26. Internal threaded casing; 27. Steel cage guide frame; 28. I-beam; 29. Shoulder pole beam; 30. Special-shaped steel cage; 31. Fixing rod; 32. Guide ring; 33. Fixing pipe; 34. Rivet nut; 35. Fixing plate; 36. Narrow special-shaped anti-floating plate; 37. Fixing nut; 38. Vertical connecting rod; 39. Horizontal connecting rod; 40. Elbow; 41. Hexagonal bolt; 42. Embedded nut; 43. Anti-circulation steel; 44. Iron sheet; 45. Locking steel bar; 46. Silt filler bag; 47. Phase I trough; 48. Phase II trough; 49. Limiting steel box; 50. Rectangular trough. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0022] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal", "transverse", "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. They are only for the convenience of describing this 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 cannot be understood as limiting this application.

[0023] Example 1 like Figure 1-10 As shown, the present invention provides a construction method for an ultra-deep special-shaped underground continuous wall, comprising the following steps: Step 1: Install the integral orifice special-shaped guide frame 1: When the rotatable guide frame 4 is lifted up, the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable support beam 7 is lifted up, and the rotatable support beam 7 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable support beam 7 is lifted up, and the rotatable guide frame 4 is lifted up, and the rotatable guide frame

[0024] Specifically, the integral hole-shaped guide frame 1 includes a shaped guide rail 2, a support mechanism 11 and a rotatable guide frame 4. The shaped guide rail 2 is placed on the guide wall 6. The rotatable guide frame 4 is composed of a lightweight channel steel 5 and is connected to the support mechanism 11 into a whole. Four groups of support mechanisms 11 are installed on the shaped guide rail 2.

[0025] Furthermore, the support mechanism 11 includes a first vertical support rod 8, a second vertical support 9, a rotating support beam 7, a first fastening nut 13, and a second fastening nut 14. The vertical support rod 19 is T-shaped and is inverted with the rod facing upward. It is inserted from the end of the special-shaped guide rail 2 and moved to the designated position. The rotating support beam 7, which has an opening at one end, is inserted from top to bottom onto the first vertical support rod 8. The first fastening nut 13 is screwed in from the top of the first vertical support rod 8 until it abuts against the top of the rotating support beam 7. One end of the second vertical support 9 is inserted from top to bottom into the notch 10 of the rotating support beam 7. The stop 15 of the second vertical support 9 abuts against the top surface of the rotating support beam 7. The second fastening nut 14 is screwed in from the bottom of the second vertical support 9 until it abuts against the bottom of the rotating support beam 7. The lightweight channel steel 5 with holes is sequentially inserted from the top of the second vertical support 9. The second fastening nut 14 is screwed in from the top of the second vertical support 9 until it abuts against the lightweight channel steel 5.

[0026] It is worth noting that the installation of four sets of support mechanisms 11 can adjust the angle of the rotatable guide frame 4. By moving the first vertical support rod 8 on the track 3 and the second vertical support 9 on the slot 10, and coordinating with the rotation of the rotating support beam 7, the position adjustment of the rotatable guide frame 4 is completed to meet the milling and excavation of special-shaped underground continuous walls.

[0027] Step 2: First phase slot formation: All underground continuous walls are grooved by milling machines. At the same time, in order to ensure the safety of the grooves, the milling sequence is as follows: first milling to the bottom → second milling to 2 / 3 of the groove length → third milling to 1 / 3 of the groove length → second milling to the bottom → third milling to the bottom to complete the first phase of groove 47. Each time the groove is milled, the rotatable guide frame 4 is lifted and the first vertical support rod 8 is moved to the next milling position. At the same time, the first fastening nut 13 and the two second fastening nuts 14 are loosened, and the angle and position of the rotatable guide frame 4 are fine-tuned by rotating and moving, and then the first fastening nut 13 and the two second fastening nuts 14 are tightened.

[0028] Step 3: Production of special-shaped steel cage: A special-shaped steel cage frame 16 made of channel steel is installed on the flat steel cage frame 20. The special-shaped steel cage frame 16 is made of channel steel. A first channel steel 17 and two second channel steels 18 are assembled into a crossbeam 21 using a rotating shaft 22. The crossbeam 21 is placed on the flat steel cage frame 20. After the angle is set using an arc-shaped clamping plate 23, support rods 19 of varying lengths are cut, one end of which is screwed into the internal threaded sleeve 26 of the second channel steel 18 and the other end is placed into the hollow sleeve 25. After the crossbeam 21 is installed, the longitudinal rods are welded to the crossbeam 21 to form a grid structure.

[0029] Specifically, the special-shaped steel bar cage frame 16 mainly determines the design angle through the arc-shaped clamping plate 23, and the arc-shaped clamping plate 23 is respectively clamped into the clamping groove 24 of the first channel steel 17 and the second channel steel 18.

[0030] Furthermore, the top of the support rod 19 is made into an external thread structure, the bottom is inserted into the hollow sleeve 25, the top is aligned with the internal threaded sleeve 26 and tightened, and the installation order of the support rod 19 is from short to long. After installation, lift the second channel steel 18 upward. If there is no angle change, the installation is qualified.

[0031] Among them, the hollow sleeve 25 is set on the channel steel of the crossbeam 21 of the flat steel cage frame 20, and the internal threaded sleeve 26 is set on the second channel steel 18 on both sides of the special-shaped steel cage frame 16.

[0032] Step 4: Hoisting of special-shaped steel cage: Before hoisting the rebar cage, weld several narrow, special-shaped anti-floating plates 36. Install fixed tubes 33 on both sides of the rebar cage. Then, insert the fixing rod 31 through the upper fixing tube 33 and screw the rivet nut 34 into the bottom. Then, install the lower and upper guide rings 32 in sequence, moving them downwards simultaneously while installing until the rivet nut 34 at the bottom is embedded in the fixing tube 33. Then, screw the rivet nut 34 into the upper end of the fixing rod 31 until it is embedded in the fixing tube 33. Then, hoist the rebar cage as a whole, and move the guide rings 32 on both sides downwards along the edges of the wing plates until the rebar cage is in place. Then, remove the rebar cage guide frame 27, fixing rod 31, and guide ring 32.

[0033] Specifically, the steel cage guide frame 27 is composed of an I-beam 28 and a shoulder beam 29. A rectangular groove 50 is opened at the top of the web of the I-beam 28. The shoulder beam 29 passes through the notch 10 of the rectangular groove 50 and is perpendicular to the I-beam 28. The I-beam 28 is vertically inserted into the first-stage groove 47 until the shoulder beam 29 is tightly attached to the guide wall 6. The I-beam 28 is vertically hung on the guide wall 6. In this way, the steel cage guide frame 27 is installed on both sides of the first-stage groove 47.

[0034] Specifically, one side of the steel cage is equipped with fixed tubes 33 on both sides, distributed at the upper and lower ends. The fixed rods 31 on both sides pass through the upper fixed tube 33 at the same time. The rivet nut 34 is screwed in from the bottom of the fixed rod 31. The holes at the two ends of the guide ring 32 are aligned with the holes of the fixing plates 35 on both sides. A wire is passed through the aligned holes and tightened. After the guide rings 32 at the upper and lower ends are installed, the fixed rods 31 on both sides are moved downward synchronously and passed through the fixed tube 33 at the lower end until the rivet nut 34 is embedded in the fixed tube 33 and the fixed rod 31 cannot move downward any further. Then, another rivet nut 34 is taken and screwed in from the upper end of the fixed rod 31 until it is embedded in the fixed tube 33 at the upper end. Follow the above steps to install the fixed rod 31 and guide ring 32 on the other side of the steel cage.

[0035] The guide ring 32 is made of a PVC tube with a diameter of 60 cm. After being cut into a semicircle, small holes are opened at both ends of the semicircle.

[0036] Furthermore, the guide ring 32 is attached to the guide frame wing plate of the I-beam 28, and the guide ring 32 moves downward along the wing plate to guide the steel cage to be hung.

[0037] Furthermore, after the steel cage is hoisted, the rivet nut 34 at the upper end of the fixing rod 31 is unscrewed, the fixing rod 31 is lifted upward, the upper end guide ring 32 is removed, the fixing rod 31 is continued to be moved upward, the lower end guide ring 32 is removed, the fixing rod 31 is continued to be moved upward, the rivet nut 34 at the lower end is unscrewed, and finally the fixing rod 31 is pulled out.

[0038] It is worth noting that a plurality of fixing plates 35 with holes are provided on the fixing rod 31 , and holes are provided at the ends of the guide rings 32 . The guide rings 32 are tied to the fixing plates 35 with wire, which facilitates the installation and removal of the guide rings 32 .

[0039] Step 5: Anti-floating of special-shaped steel cage: Pre-process the vertical connecting rods 38 and horizontal connecting rods 39. Both ends of the vertical connecting rods 38 are threaded, while one end of the horizontal connecting rods 39 is threaded and has a hole. Insert the vertical connecting rods 38 into the fixing nuts 37 and tighten them. Insert the elbow 40 into the top of the vertical connecting rods 38 and tighten them. Insert the horizontal connecting rods 39 into the elbow 40 and tighten them. After aligning the other end of the horizontal connecting rods 39 with the embedded nuts 42, thread the hexagonal bolts 41 through the holes and screw them into the embedded nuts 42.

[0040] Specifically, the narrow strip special-shaped anti-floating plate 36 is welded to the top of the steel cage, the fixing nuts 37 are installed in advance on both sides of the narrow strip special-shaped anti-floating plate 36, the vertical connecting rod 38 is tightened with the fixing nuts 37, the vertical connecting rod 38 and the horizontal connecting rod 39 are connected with the elbow 40, and the other end of the horizontal connecting rod 39 has a hole aligned with the embedded nut 42, and the hexagonal bolt 41 is passed through the hole and tightened.

[0041] The fixing nut 37 and the vertical connecting rod 38 are connected by threaded connection, and the vertical connecting rod 38 and the horizontal connecting rod 39 are also connected to the elbow 40 by threaded connection.

[0042] Step 6: Anti-circumvention treatment: The iron sheet 44 is installed between the flanges on both sides of the bypass steel 43 and welded with locking steel bars 45. A lubricating layer is applied to the flanges and webs facing the steel cage. The bypass steel 43 with the iron sheet 44 is then hoisted and lowered vertically, with the free end of the iron sheet 44 spread out along the trough wall. Silt filler bags 46 are then backfilled behind the bypass steel 43 and compacted, before being placed in a limiting steel box 49 for weighting.

[0043] Specifically, one end of the 0.6 mm thick iron sheet 44 is pressed with a 14 mm diameter locking steel bar 45 and welded to the half of the anti-circulation steel 43 wing plate. The same specification locking steel bar 45 is still used to weld and lock the other end of the iron sheet 44. The anti-circulation steel 43 with the iron sheet 44 on both sides of the wing plate is grooved, and then one end of the locking end of the iron sheet 44 is unfolded along the groove wall.

[0044] Furthermore, a silt filling bag 46 is put behind the anti-bypass steel 43 and backfilled and compacted using a gravity rod.

[0045] Furthermore, a limiting steel box 49 is installed directly above the silt filling bag 46 , that is, at the back of the anti-bypass steel 43 , to compact the silt filling bag 46 .

[0046] Among them, the limiting steel box 49 is 6 meters long and is made of closed steel plates, with 1 meter exposed on the 6 sides of the guide wall. Several supports are set inside the limiting steel box 49. The supporting steel plates withstand the pressure from all sides, and the steel box is fixed to the 6 openings of the guide wall by a shoulder pole.

[0047] Step 7: Phase II trough construction: Before the concrete in the first-phase trough 47 solidifies, the anti-floating structure is removed. First, unscrew the hexagonal bolts 41, then rotate and unscrew the horizontal connecting rods 39. Then, rotate the elbows 40 and remove them from the vertical connecting rods 38. Finally, rotate the vertical connecting rods 38 to disengage the retaining nuts 37. After the concrete has completely set, use a jack to loosen the steel box and slowly push it upward until the crane can successfully lift it out. Then, remove the silt filler bags 46 and the anti-circulation steel 43 in sequence. Then, mill the grooves for the second-phase trough 48. Similarly, install the steel cage guide frame 27 to assist in lifting the steel cage, set the steel cage anti-floating function, and then pour concrete to complete the underground continuous wall construction.

[0048] It is worth noting that after removing the limit steel box 49 or the limit steel plate, a 2.8m×1.2m×6m rectangular groove 50 is reserved so that after the groove milling machine is placed in the groove section, the mud pump can be buried in the groove, so that mud can be pumped while the groove is milling.

[0049] Example 2 The ultra-deep special-shaped underground continuous wall is manufactured using the above-mentioned ultra-deep special-shaped underground continuous wall construction method.

[0050] The parts not described in detail in this application are prior art, so this application does not describe them in detail.

[0051] 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 elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0052] Although the term "etc." is frequently used herein, the possibility of using other terms is not excluded. 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.

[0053] This application is not limited to the above-mentioned optimal implementation method. Anyone can derive various other forms of products based on the inspiration of this application. However, no matter what changes are made in their shape or structure, any technical solution that is the same or similar to that of this application falls within the scope of protection of this application.

Claims

1. The construction method of ultra-deep special-shaped underground continuous wall is characterized by: The following steps are involved: Step 1: Install the integral hole-shaped guide frame (1), connect the rotatable guide frame (4) to the second vertical support (9), place the shaped guide rail (2) on the guide wall (6), and adjust the position of the rotatable guide frame (4) through the support mechanism (11); Step 2: Use a slot milling machine to form the first slot (47), complete the slotting in a predetermined order, and ensure the slotting accuracy by adjusting the rotatable guide frame (4); Step 3: Making a special-shaped steel cage (30) on a flat steel cage frame (20), and adjusting the angle and shape of the steel cage by the special-shaped steel cage frame (16); Step 4: hoisting the special-shaped steel cage (30), and using the steel cage guide frame (27) and the guide ring (32) to guide the steel cage to the designated position; Step 5: Setting up an assembled anti-floating structure, connecting and fixing it with vertical connecting rods (38), horizontal connecting rods (39) and elbows (40) to resist the buoyancy of concrete; Step 6: Perform bypass treatment, install bypass steel (43) and iron sheet (44), backfill silt filling bag (46) and compact it, and place limit steel box (49) for weighting; Step 7: Remove the anti-floating structure and proceed with the second phase trough (48) construction, repeating the steel cage hoisting, anti-floating and concrete pouring processes.

2. The construction method according to claim 1, characterized in that: The integral hole-shaped guide frame (1) comprises a shaped guide rail (2), a support mechanism (11) and a rotatable guide frame (4), wherein the shaped guide rail (2) is placed on a guide wall (6), and the rotatable guide frame (4) is composed of a lightweight channel steel (5) and is connected to the support mechanism (11) to form a whole, and four groups of support mechanisms (11) are installed on the shaped guide rail (2).

3. The construction method according to claim 2, characterized in that: The support mechanism (11) comprises a first vertical support rod (8), a second vertical support (9), a rotating support beam (7), a first fastening nut (13) and a second fastening nut (14), and the position of the rotatable guide frame (4) is adjusted by the cooperation between the vertical support rod and the rotating support beam.

4. The construction method according to claim 1, characterized in that: The special-shaped steel bar cage frame (16) determines the design angle through the arc-shaped clamping plate (23), the top of the support rod (19) is made into an external thread structure, the bottom is inserted into the hollow sleeve (25), and the top is aligned with the internal thread sleeve (26) and tightened.

5. The construction method according to claim 1, characterized in that: The steel cage guide frame (27) is composed of an I-beam (28) and a shoulder beam (29), wherein the I-beam (28) is vertically inserted into the first-stage groove (47), and the shoulder beam (29) passes through the rectangular notch (10) at the top of the web of the I-beam (28) and is arranged perpendicular to the I-beam (28).

6. The construction method according to claim 1, characterized in that: Iron sheets (44) are installed on both sides of the anti-circumvention steel (43) and fixed by locking steel bars (45) to form a blocking frame to prevent concrete from flowing around.

7. The construction method according to claim 1, characterized in that: The limit steel box (49) is 6m long and is made of a closed steel plate, with 1m exposed on the guide wall (6) surface. Several supports are provided inside and fixed to the guide wall opening by a shoulder pole for weighting and reserving a rectangular groove.

8. Ultra-deep special-shaped underground continuous wall, characterized by: The invention is prepared by the construction method according to any one of claims 1 to 7.

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