A construction method for in-situ mixing and curing using an in-situ curing mixer and the in-situ curing mixer itself.

Abstract

This invention discloses a construction method for in-situ mixing and curing using an in-situ curing mixer, as well as the in-situ curing mixer itself. The method involves determining the construction area, moving the in-situ curing mixer to the construction site and identifying the first mixing point, recording the coordinates of this first mixing point using a positioning system mounted on the mixer; adjusting the boom of the in-situ curing mixer to a vertical position with a mast containing a mixing head; regulating the hydraulic oil system used to control the movement of the boom and mixing head; distributing hydraulic oil to a winch used to drive the mast's lifting and lowering operation; and maintaining the rotation of the mixing head during mast lifting and lowering. The mast then lowers, coordinating with the rotation of the mixing head to achieve the tunneling action, during which the prepared curing slurry is pumped in. After the first mixing point is completed, the mast is moved according to the coordinates of the next mixing point, and the same process is repeated for the second mixing point, continuing this cycle until the entire construction area is completed.

Description

Technical Field

[0001] This invention relates to a construction method for in-situ mixing and curing using an in-situ curing mixer, and to an in-situ curing mixer. Background Technology

[0002] The high-intensity mixing and in-situ curing system includes a mixing head, a mixer, and a curing agent supply system. During construction, to ensure accuracy, small squares need to be marked on the designated construction site beforehand. The mixer is then moved to the site and the process is carried out according to each square. A drawback of this method is that during mixing, slurry overflows and can damage or cover the small squares. Moving to the next square requires manual judgment based on experience, which is inaccurate. Furthermore, existing mixing head mast lifting systems rely on the combined operation of the mixer's boom and arm, which offers high automation, as achieving vertical lifting of the mixing head is difficult. Vertical lifting is crucial to prevent "cross-mixing" within each small square. Existing mast lifting systems divert hydraulic oil from the excavator itself (i.e., hydraulic lifting), which diverts hydraulic oil and can cause the mixing head to stop rotating during mast lifting, resulting in low efficiency. Summary of the Invention

[0003] The present invention provides a construction method for on-site mixing and curing with an in-situ curing mixer and an in-situ curing mixer in order to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this invention are as follows:

[0005] A construction method for in-situ mixing and curing using an in-situ curing mixer includes:

[0006] (1) Determine the construction area, drive the in-situ curing mixer to the construction site and determine the first mixing point, and record the coordinates of the first mixing point through the positioning system set on the in-situ curing mixer;

[0007] (2) Adjust the mast with the mixing head of the in-situ curing mixer to a vertical position, adjust the hydraulic oil system used to control the movement of the excavator arm and the mixing head, and distribute the hydraulic oil to the winch used to drive the lifting and lowering of the mast. During the lifting and lowering of the mast, the mixing head keeps rotating.

[0008] (3) The mast is lowered and the mixing head is rotated to realize the tunneling action. During the tunneling process, the prepared solidified mud is pumped in;

[0009] (4) After the first mixing point is completed, move the mast according to the coordinates of the next mixing point, and then carry out the mixing and solidification operation of the second mixing point in the same way. Repeat this process until the entire construction area is completed.

[0010] Furthermore, the mast is equipped with a satellite locator and an tilt sensor. The satellite locator obtains the position coordinates of the mast during each construction operation, and the tilt sensor obtains the tilt angle of the mast.

[0011] Furthermore, a positioning reference pole is set up at or near the construction site. The positioning reference pole obtains the reference coordinates through satellite positioning. Each time the mixing point of the mast is changed, the coordinates of the mast after each change are compared with the reference coordinates to reduce the error after each movement of the mast.

[0012] Furthermore, the in-situ curing mixer is equipped with a priority valve, a speed-regulating proportional valve, and a flow divider valve. The P port and T port of the priority valve are respectively connected to the oil supply and return circuits of the hydraulic oil system, and the CF port and EF port are respectively connected to the speed-regulating proportional valve and the flow divider valve. The speed-regulating proportional valve is connected to the hydraulic drive component in the drive hoist, and the flow divider valve is connected to the hydraulic drive component of the mixing head.

[0013] Furthermore, when the mast is not raising or lowering, i.e. when the winch hoist does not require oil, all the hydraulic oil provided by the hydraulic oil system in the in-situ curing mixer is supplied to the EF port of the priority valve, and after passing through the diversion valve, it drives the mixing head to rotate.

[0014] When the mast is raised or lowered, i.e. when the winch requires oil, the hydraulic oil P supplied by the hydraulic oil system is preferentially supplied to the CF port of the priority valve. At this time, the amount of oil supplied to the EF port is reduced, thus reducing the speed of the stirring head. The oil supply ratio of the priority valve to the winch is controlled by the speed regulating proportional valve, and the winch is driven by the hydraulic oil to realize the raising and lowering of the mast.

[0015] This invention also discloses an in-situ solidification mixer, including an excavator body and a mast with a mixing head. The mast is mounted on the excavator arm of the excavator body. The excavator body is equipped with a hydraulic oil system for driving the excavator arm and the mixing head. It also includes a winch, a priority valve, a speed-regulating proportional valve, and a flow divider valve. The winch is mounted on the excavator arm. The P port and T port of the priority valve are respectively connected to the oil supply and return lines in the hydraulic oil system. The CF port and EF port are respectively connected to the speed-regulating proportional valve and the flow divider valve. The speed-regulating proportional valve is connected to the hydraulic drive component in the winch, and the flow divider valve is connected to the hydraulic drive component of the mixing head.

[0016] Furthermore, the winch hoist includes a hydraulic motor, a reducer, a rope reel, a mounting base, and wire ropes. The mounting base is fixed on the boom of the excavator arm, the mast is slidably connected to the mounting base, the hydraulic motor is fixed on the mounting base, and the hydraulic motor is linked to the rope reel through the reducer. Two wire ropes are wound on the rope reel and placed on both sides of the axial direction of the rope reel. One end of each wire rope is fixed to the rope reel, and the other end is fixed to the upper and lower ends of the mast, respectively.

[0017] Furthermore, the hoist also includes a rope ring with a spiral groove on the outer circumferential wall of the rope reel. The rope ring meshes with the spiral groove, and the rotation of the rope reel drives the rope ring to move along the axial direction of the rope reel. Two steel wire ropes are wound in the spiral groove, and the two steel wire ropes are respectively placed on both sides of the rope ring.

[0018] Furthermore, a rope guide is provided above the rope reel, and two rope guide grooves for threading steel wire rope are provided on the rope guide. The rope reel is fixed to the rope guide.

[0019] Furthermore, a guide shaft is fixed on the mounting base, the guide shaft is arranged along the axial direction of the rope reel, and the rope guide is threaded through the guide shaft.

[0020] Furthermore, the guide shaft is a rectangular shaft, and a bushing is fixed on the rope guide. The bushing is inserted into the rectangular shaft, rotates around the rope reel, and drives the rope guide to move axially along the guide shaft.

[0021] Furthermore, the mounting base is equipped with two rope guide wheels for guiding the two steel wire ropes.

[0022] The present invention has the following beneficial effects:

[0023] (1) By setting a positioning point on the mast, the present invention can eliminate the need for dividing into "small squares" and can be assisted by "small squares" alone, and the positioning accuracy of the present application is higher.

[0024] (2) The mast lifting is no longer achieved through the joint operation of the boom and arm, but is driven by the winch hoist alone, which can better ensure the verticality of the construction.

[0025] (3) Through the rational design and application of the priority valve, the coordinated operation of mast lifting and mixing head rotation is realized, which solves the problem of the mixing head stopping due to mast lifting in the existing technology, effectively improving work efficiency and construction quality, and is suitable for various construction scenarios that require simultaneous mixing and lifting operations.

[0026] (4) The hydraulic circuit system is reasonably laid out. The coordinated operation of the priority valve, speed regulating proportional valve and flow divider valve ensures efficient distribution and precise control of hydraulic oil. It can meet the large demand for hydraulic oil when the mast is raised and lowered, and ensure the continuous operation of the stirring head under different working conditions. This realizes the optimal utilization of resources and improves the overall performance and reliability of the equipment.

[0027] (5) The winch hoist is ingeniously designed, with close cooperation between its components and reliable operation. The combination of hydraulic motor, reducer, rope reel and wire rope can stably and accurately realize the lifting and lowering of the mast, and the lifting speed can be precisely controlled by the speed regulating proportional valve; the slide rail on the mounting base cooperates with the slider on the mast, and the setting of the rope guide wheel ensures the orderly winding of the wire rope and the stability of the mast during the lifting and lowering process, which extends the service life of the equipment and reduces maintenance costs. Attached Figure Description

[0028] Figure 1 This is a structural diagram of an in-situ curing mixer.

[0029] Figure 2 This is a schematic diagram of the liquid distribution principle of the present invention.

[0030] Figure 3 This is a structural diagram of a winch elevator.

[0031] Figure 4 This is a structural diagram of a winch elevator.

[0032] Figure 5 This is a structural diagram of a winch elevator.

[0033] Figure 6 This is an assembly drawing of a hydraulic motor and a reducer.

[0034] Figure 7 This is an assembly drawing of the winch elevator and mast.

[0035] Figure 8 This is an assembly diagram of the rope guide and the rope coiling ring.

[0036] Figure 9 This is a structural diagram of a coiled rope loop.

[0037] Figure 10 This is a structural diagram of the rope guide.

[0038] Figure 11 A structural diagram showing the installation of slide rails on the mounting base.

[0039] Figure 12 This is a diagram illustrating the construction steps of an in-situ curing mixer.

[0040] In the picture:

[0041] The following are the part names and numbers extracted from the document content:

[0042] 1- Excavator body;

[0043] 2-Mast; 21-Agitator head; 22-Securing buckle;

[0044] 3-Winding hoist; 31-Hydraulic motor; 32-Reducer; 33-Rope reel; 331-Locking block; 34-Mounting base; 341-Slide rail; 36-Rope guide pulley; 37-Mounting ear; 35-Rope guide; 350-Rope guide groove; 351-Rope coiling ring; 352-Guide shaft;

[0045] 4-Priority valve; 5-Speed ​​proportional valve; 6-Flow divider valve. Detailed Implementation

[0046] The invention will now be further described with reference to the accompanying drawings.

[0047] like Figure 1 and Figure 2 The present invention discloses an in-situ solidification mixer, comprising an excavator body 1, a winch 3, a priority valve 4, a speed control proportional valve 5, a flow divider valve 6, and a mast 2 with a mixing head 21. The mast 2 is mounted on the excavator arm of the excavator body 1. The excavator body 1 is provided with a hydraulic oil system for driving the excavator arm and the mixing head. The winch 3 is mounted on the excavator arm for driving the mast 2 to rise and fall. The mast 2 is slidably connected to the winch 3.

[0048] Priority valve 4, speed proportional valve 5 and flow divider valve 6 are all located on the winch hoist 3. The P port and T port of priority valve 4 are respectively connected to the oil supply and return lines in the hydraulic oil system. The CF port and EF port are respectively connected to speed proportional valve 5 and flow divider valve 6. Speed ​​proportional valve 5 is connected to the hydraulic drive component (i.e., hydraulic motor) in the winch hoist 3. Flow divider valve 6 is connected to the hydraulic drive component (i.e., hydraulic motor) of the mixing head 21.

[0049] When the mast 2 is not raising or lowering, that is, when the winch 3 does not need oil, all the hydraulic oil provided by the excavator's hydraulic oil system is supplied to the EF port of the priority valve 4, and after passing through the diverter valve 6, it drives the two stirring heads 21 to rotate.

[0050] When mast 2 is raised or lowered, i.e., when the winch jack 3 requires oil, the hydraulic oil P supplied by the hydraulic oil system is preferentially supplied to port CF of the priority valve 4. At this time, the amount of oil supplied to port EF is reduced, thus lowering the speed of the stirring head, but the stirring head will not stop rotating. The oil supply ratio from the priority valve 4 to the winch jack 3 is controlled by the speed regulating proportional valve 5, which drives the hydraulic motor 31 in the winch jack 3 to raise or lower mast 2.

[0051] like Figures 3 to 6The winch hoist 3 includes a hydraulic motor 31, a reducer 32, a rope reel 33, a mounting base 34, and wire ropes. Mounting ears 37 are provided on the mounting base 34 and are fixed to the boom 11 of the excavator arm. The mast 2 is slidably connected to the mounting base 34. The hydraulic motor 31, priority valve 4, speed proportional valve 5, and flow divider valve 6 are all fixed to the mounting base 34. The hydraulic motor 31 is linked to the rope reel 32 via the reducer 32. Two wire ropes are wound on the rope reel 33 and positioned on both sides of the axial direction of the rope reel. One end of each wire rope is fixed to the rope reel 33, and the other end is fixed to the upper and lower ends of the mast 2, respectively.

[0052] Combination Figure 7 To facilitate the fixing of both ends of each wire rope, a locking block 331 is fixed on the inner circumferential wall of the rope winding disc 33, and a fixing buckle 22 is fixed at both ends of the mast 2. The locking block 331 and the fixing buckle 22 are connected to both ends of each wire rope respectively.

[0053] Combination Figures 8 to 10 To better wind and unwind the wire rope, the winch 3 is also equipped with a rope coiling ring 351. A spiral groove is provided on the outer circumferential wall of the winding coil 33. The rope coiling ring 351 engages with the spiral groove. The winding coil 33 rotates and drives the rope coiling ring 351 to move along the axial direction of the winding coil. The two wire ropes are wound in the spiral groove along the spiral direction, and the two wire ropes are respectively placed on both sides of the rope coiling ring 351.

[0054] This unique coiled rope design effectively prevents the wire rope from crossing, overlapping, or becoming disordered during the winding process, ensuring that the wire rope is wound and released in an orderly manner. In particular, the coiled rope ring 351 is set up so that the axial displacement of the coiled rope ring 351 when the coiled rope ring 33 rotates allows the wire rope to be better wound and released along the spiral groove.

[0055] A guide shaft 352 is fixed on the mounting base 34. The guide shaft 352 is arranged along the axial direction of the rope winding disc 33, and the rope guide 35 passes through the guide shaft 352. The guide shaft is a rectangular shaft, and a bushing fixed on the rope guide 35 is inserted into the rectangular shaft. This structure allows the rope guide to slide smoothly axially on the guide shaft. At the same time, the cooperation between the rectangular shaft and the bushing prevents the rope guide from rotating or deviating during sliding, ensuring that the rope guide always maintains the correct posture to guide the wire rope. When the rope winding disc 33 rotates, it can drive the rope guide 35 to move axially along the guide shaft 352, realizing the synchronous movement of the rope ring and the rope guide. This better adapts to the needs of the wire rope at different winding positions, further improving the orderliness and reliability of the wire rope winding.

[0056] A rope guide 35 is provided above the rope reel 33. The rope guide 35 has two guide grooves 350 for threading the wire rope, and the coiled rope ring 351 is fixed to the rope guide 35. The rope guide 35 further guides the inlet and outlet directions of the wire rope, allowing it to enter or exit the spiral grooves more smoothly, reducing friction and wear during winding and unwinding, and improving the service life and operational reliability of the wire rope. At the same time, the guide grooves prevent the wire rope from deviating or jumping out of the spiral grooves, enhancing the safety of equipment operation.

[0057] The mounting base 34 is also equipped with two rope guide pulleys 36 for guiding the two wire ropes. The rope guide pulleys can reduce the friction and wear of the wire ropes from the rope reel to the mast connection, making the wire ropes run more smoothly, reducing energy loss, and also helping to maintain uniform tension of the wire ropes, further ensuring the stability of mast raising and lowering.

[0058] like Figure 11 The mounting base 34 is equipped with a slide rail 341. The mast 2 is slidably connected to the slide rail 341 on the mounting base 34 through the cooperation of the slider. The cooperation between the slide rail and the slider ensures that the mast maintains stable and linear movement during the lifting process, avoiding swaying or deviation of the mast during lifting, and improving the safety and accuracy of the operation.

[0059] The hydraulic oil supply method for the in-situ curing mixer is as follows:

[0060] In actual operation, when the operator needs to raise or lower the mast, the hydraulic oil system of the excavator body 1 is first started to generate high-pressure hydraulic oil.

[0061] High-pressure hydraulic oil enters the supply port (inlet) of priority valve 4 through the oil supply circuit. Due to the control logic of the priority valve, when the mast needs to be raised or lowered, the hydraulic oil flows preferentially to port CF, and after being regulated by the speed-regulating proportional valve 5, it enters the hydraulic motor 31. The hydraulic motor 31 rotates under the drive of the hydraulic oil, and the speed is reduced and the torque is increased by the reducer 32, which drives the rope reel 33 to rotate. The rotation of the rope reel 33 causes the wire rope wound on it to be unwound and retracted, thereby driving the mast 2, which is fixed to the other end of the wire rope, to move up and down. The speed-regulating proportional valve 5 can adjust the pressure of the control oil LS according to the electronic control signal to adjust the amount of oil distributed by the hydraulic priority valve to the priority port CF, thereby realizing the speed regulation of the bidirectional pressure winch.

[0062] Meanwhile, due to the action of the priority valve 4, although the amount of hydraulic oil flowing to the EF port is reduced, a certain amount of oil can still be distributed to the two mixing heads 21 through the diversion valve 6, allowing them to continue rotating at a low speed. This design ensures that the mixing heads can continue to operate during the mast raising and lowering process, avoiding problems such as segregation or initial setting of concrete due to shutdown, and ensuring the continuity and quality of construction.

[0063] When the mast does not need to be raised or lowered, all the hydraulic oil supplied by the hydraulic system flows to the EF port of the priority valve 4, and is evenly distributed to the two mixing heads through the diverter valve 6, so that they can carry out efficient mixing operations at normal speed, give full play to the mixing function of the excavator, and improve work efficiency.

[0064] Priority valve 4 is the core control element of the entire hydraulic circuit system. Its inlet P is connected to the hydraulic oil supply circuit, its T port is connected to the return circuit, its CF port is connected to the hydraulic motor 31 in the winch 3 via the speed proportional valve 5, and its EF port is connected to the hydraulic drive component of the agitator head 21 via the flow divider valve 6. This connection method allows the hydraulic oil to be rationally distributed to different actuators according to the control logic of the priority valve.

[0065] The priority valve 4 operates on the principle of priority control based on pressure and flow. When the mast 2 is not raising or lowering, the winch 3 does not require oil. At this time, all the hydraulic oil supplied by the excavator's hydraulic system is supplied to the EF port of the priority valve 4, and after passing through the diverter valve 6, it drives the two agitator heads 21 to rotate. The function of the diverter valve 6 is to evenly distribute the hydraulic oil to the two agitator heads, ensuring that the two agitator heads can operate stably at the same speed, achieving a uniform agitation effect, improving work efficiency and project quality.

[0066] When mast 2 is raised or lowered, the winch hoist 3 requires oil. The hydraulic oil provided by the hydraulic oil system is preferentially supplied to port CF of priority valve 4. At this time, the amount of oil supplied to port EF is reduced, and the speed of the mixing head is reduced accordingly. However, since some hydraulic oil still flows to port EF, the mixing head will not stop rotating, which ensures the continuity of the construction process, avoids problems such as concrete segregation caused by the stopping of the mixing head, and improves the construction quality.

[0067] The oil supply ratio from the priority valve 4 to the winch 3 is controlled by the speed proportional valve 5. The speed proportional valve 5 can adjust the oil quantity according to actual needs and control signals, thereby precisely controlling the speed of the hydraulic motor 31 and achieving stepless adjustment of the mast 2's lifting speed. This speed control method allows operators to flexibly adjust the mast's lifting speed according to different construction conditions and requirements, improving the equipment's adaptability and ease of operation.

[0068] An tilt sensor is installed on mast 2 to measure the verticality of the mast in real time so that the operator can adjust the verticality.

[0069] like Figure 12 The present invention also provides a construction method, as follows:

[0070] (1) After determining the construction area, the in-situ curing mixer is driven to the construction site and the first mixing point is determined according to satellite positioning. The coordinates of the first mixing point are recorded by the positioning system set on the in-situ curing mixer.

[0071] (2) Adjust the mast 2 of the excavator arm of the in-situ curing mixer to a vertical position, adjust the hydraulic oil system in the in-situ curing mixer, and distribute the hydraulic oil to the winch used to drive the mast lifting action. During the mast lifting process, the mixing head keeps rotating.

[0072] (3) The mast is lowered and the mixing head 21 is rotated to realize the tunneling action. During the tunneling process, the prepared solidified mud is pumped in;

[0073] (4) After the first mixing point is completed, move mast 2 according to the coordinates of the next mixing point, and then carry out the mixing and solidification operation of the second mixing point in the same way. Repeat this process until the entire construction area is completed.

[0074] Because the mast 2 can be made to move vertically by means of a winch, the excavator arm of the in-situ curing mixer can remain stationary after the in-situ curing mixer has been moved to the designated position. This avoids angular deviation of the mast 2 during construction and can more accurately guarantee the construction angle.

[0075] The mast is equipped with a satellite locator and an tilt sensor. The satellite locator, in conjunction with the GNSS positioning system, can accurately obtain the position coordinates of the mast during each construction operation, and the tilt sensor can obtain the tilt angle of the mast.

[0076] To further ensure the accuracy of each mast movement, a positioning reference pole is set up at or near the construction site. The positioning reference pole obtains reference coordinates through satellite positioning. Each time the mixing point of the mast is changed, the subsequent coordinates of the mast are compared with the reference coordinates to reduce the error after each mast movement.

[0077] The in-situ solidification mixer is also equipped with a visual touchscreen to display information such as coordinate position, mast tilt angle, and mixing head 21 rotation speed. Combined with a meter sensor, it can also acquire the mast's lifting height to determine the excavation depth, which is then displayed on the touchscreen.

[0078] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. An in-situ solidification mixer, comprising an excavator body (1) and a mast (2) having a mixing head (21), wherein the mast (2) is mounted on the excavator arm of the excavator body (1), and the excavator body (1) is provided with a hydraulic oil system for driving the excavator arm and the mixing head, characterized in that: It also includes a winch (3), a priority valve (4), a speed-regulating proportional valve (5), and a flow divider (6). The winch (3) is mounted on the excavator arm. The P port and T port of the priority valve (4) are respectively connected to the oil supply and return lines in the hydraulic oil system. The CF port and EF port are respectively connected to the speed-regulating proportional valve (5) and the flow divider (6). The speed-regulating proportional valve (5) is connected to the hydraulic drive component in the winch (3), and the flow divider (6) is connected to the hydraulic drive component of the mixing head (21). The winch hoist (3) includes a hydraulic motor (31), a reducer (32), a rope reel (33), a mounting base (34), and steel wire ropes. The mounting base (34) is fixed on the boom of the excavator arm, and the mast (2) is slidably connected to the mounting base (34). The hydraulic motor (31) is fixed on the mounting base (34). The hydraulic motor (31) is linked to the rope reel (33) through the reducer (32). Two steel wire ropes are wound on the rope reel (33) and placed on both sides of the axial direction of the rope reel. One end of each steel wire rope is fixed to the rope reel (33), and the other end is fixed to the upper and lower ends of the mast (2), respectively. The hoist (3) also includes a coiled rope ring (351). A spiral groove is provided on the outer circumferential wall of the coiled rope disc (33). The coiled rope ring (351) meshes with the spiral groove. The coiled rope disc (33) rotates and drives the coiled rope ring (351) to move along the axial direction of the coiled rope disc. Two steel wire ropes are wound in the spiral groove, and the two steel wire ropes are respectively placed on both sides of the coiled rope ring (351). A rope guide (35) is provided above the rope reel (33), and two rope guide grooves (350) for threading steel wire ropes are provided on the rope guide (35). The rope loop (351) is fixed to the rope guide (35).

2. The in-situ solidification mixer as described in claim 1, characterized in that: The mounting base (34) is fixed with a guide shaft (352), which is arranged along the axial direction of the rope winding disc (33), and the rope guide (35) is threaded on the guide shaft (352).

3. The in-situ solidification mixer as described in claim 2, characterized in that: The guide shaft (352) is a rectangular shaft. A bushing is fixed on the rope guide (35). The bushing is inserted into the rectangular shaft and rotates around the rope disc (33) to drive the rope guide (35) to move axially along the guide shaft (352).

4. The in-situ solidification mixer as described in claim 1, characterized in that: The mounting base (34) is provided with two rope guide wheels (36) for guiding the two steel wire ropes.

5. A construction method for in-situ mixing and curing based on any one of the in-situ curing mixers described in claims 1-4, characterized in that: include: (1) Determine the construction area, drive the in-situ curing mixer to the construction site and determine the first mixing point, and record the coordinates of the first mixing point through the positioning system set on the in-situ curing mixer; (2) Adjust the mast with the mixing head of the in-situ curing mixer to a vertical position, adjust the hydraulic oil system used to control the movement of the excavator arm and the mixing head, and distribute the hydraulic oil to the winch used to drive the lifting and lowering of the mast. During the lifting and lowering of the mast, the mixing head keeps rotating. (3) The mast is lowered and the mixing head is rotated to realize the tunneling action. During the tunneling process, the prepared solidified mud is pumped in; (4) After the first mixing point is completed, move the mast according to the coordinates of the next mixing point, and then carry out the mixing and solidification operation of the second mixing point in the same way. Repeat this process until the entire construction area is completed.

6. The construction method for in-situ mixing and curing using an in-situ curing mixer as described in claim 5, characterized in that: The mast is equipped with a satellite locator and a tilt sensor. The satellite locator obtains the position coordinates of the mast during each construction operation, and the tilt sensor obtains the tilt angle of the mast.

7. The construction method for in-situ mixing and curing using an in-situ curing mixer as described in claim 6, characterized in that: A positioning reference pole is set up at or near the construction site. The positioning reference pole obtains the reference coordinates through satellite positioning. Each time the mixing point of the mast is changed, the coordinates of the mast after each change are compared with the reference coordinates to reduce the error after each movement of the mast.

8. The construction method for in-situ mixing and curing using an in-situ curing mixer as described in claim 5, characterized in that: The in-situ curing mixer is equipped with a priority valve (4), a speed-regulating proportional valve (5), and a flow divider valve (6). The P port and T port of the priority valve (4) are respectively connected to the oil supply and return circuits of the hydraulic oil system, and the CF port and EF port are respectively connected to the speed-regulating proportional valve (5) and the flow divider valve (6). The speed-regulating proportional valve (5) is connected to the hydraulic drive component in the drive hoist, and the flow divider valve (6) is connected to the hydraulic drive component of the mixing head (21).

9. The construction method for in-situ mixing and curing using an in-situ curing mixer as described in claim 8, characterized in that: When the mast (2) does not lift, that is, when the winch (3) does not need oil, all the hydraulic oil provided by the hydraulic oil system in the in-situ curing mixer is supplied to the EF port of the priority valve (4), and after passing through the diversion valve (6), it drives the mixing head (21) to rotate. When the mast (2) is raised or lowered, that is, when the winch (3) needs oil, the hydraulic oil P provided by the hydraulic oil system is preferentially supplied to the CF port of the priority valve (4). At this time, the amount of oil supplied to the EF port is reduced, and the speed of the stirring head is reduced. The oil supply ratio of the priority valve (4) to the winch (3) is controlled by the speed regulating proportional valve (5). The winch (3) is driven by the hydraulic oil to realize the raising and lowering of the mast (2).

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