Mud balance pipe jacking construction device and construction method thereof

Abstract

The application discloses a kind of mud balance pipe jacking construction device and its construction method, including jacking assembly, to be jacked pipeline assembly, mud balance system, jacking assembly is installed in starting well, to be jacked pipeline assembly includes a plurality of to be jacked pipeline and is sequentially and closely butt jointed, still includes auxiliary positioning assembly and tool pipe, auxiliary positioning assembly is installed in starting well and is used for the movement path of tool pipe and to be jacked pipeline jacking assembly to be jacked into auxiliary, tool pipe includes shell, mud water bin and working bin are equipped in shell, mud water bin connects mud balance system for stabilizing tool pipe front end pressure, mud water bin front end is equipped with cutterhead assembly, cutterhead assembly can be switched according to the soil quality of to be jacked construction section single reinforced cutterhead or composite cutterhead, can be switched according to different soil quality single reinforced cutterhead or composite cutterhead, to adapt to various complex soil layer situation in turn, improve construction efficiency, and protect part cutter head, improve the service life of corresponding cutter head.

Description

TECHNICAL FIELD

[0001] The present application relates to a slurry balance pipe jacking construction device and a construction method thereof. BACKGROUND

[0002] Slurry balance pipe jacking construction is a trenchless construction method, which is a pipe pre-embedding construction technology without or with less excavation. Pipe jacking construction is to overcome the friction between the pipe and the surrounding soil by using the jacking force generated by the jacking equipment in the working pit, and to jacking the pipe into the soil according to the set slope, and to transport the earthwork away. The pipe jacking machine generally installs a cutter head on the machine head and drives the cutter head by a motor to dig the earth.

[0003] The cutter head of the existing slurry balance pipe jacking machine is mostly in the form of a single cutter head. In the process of tunneling construction, different soil conditions may be encountered at different construction intervals. The single cutter head form sometimes cannot adapt to complex soil conditions, and is easy to aggravate the wear of the cutting head, reducing its service life. When replacing the cutter head temporarily at the construction site, it can only be replaced by excavating or manually excavating the machine head, which increases the construction cost and construction period. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a slurry balance pipe jacking construction device, which can form a single reinforced cutter head or a composite cutter head by the rotation of the auxiliary disc and the rotating disc according to different soil conditions, thereby adapting to various complex soil conditions, improving construction efficiency, and protecting part of the cutter head, thereby improving the service life of the corresponding cutter head. A construction method is also provided.

[0005] In order to achieve the above purpose, the present application provides a slurry balance pipe jacking construction device, which comprises a jacking assembly, a to-be-jacked pipe assembly and a slurry balance system. The jacking assembly is installed in the starting well. The to-be-jacked pipe assembly comprises a plurality of to-be-jacked pipes which are arranged in close contact in sequence. The auxiliary positioning assembly and the tool pipe are also included. The auxiliary positioning assembly is installed in the starting well and is used for assisting the movement path of the jacking assembly for jacking the tool pipe and the to-be-jacked pipe. The tool pipe comprises a shell, and a slurry tank and a working tank are arranged in the shell. The slurry tank is connected to the slurry balance system for stabilizing the pressure at the front end of the tool pipe. A cutter head assembly is arranged at the front end of the slurry tank. The cutter head assembly can switch between a single reinforced cutter head and a composite cutter head according to the soil conditions of the to-be-jacked construction section.

[0006] Further, the cutter head assembly comprises a rotating disc, an inner end face of the rotating disc is provided with a recess and a central main drive rod is connected thereto, the end of the main drive rod penetrates through the mud tank horizontally and is arranged in the working chamber and is provided with a drive motor, an outer end face of the rotating disc is provided with a central cutter, a plurality of cutters, a plurality of mud inlets and a plurality of rectangular openings, the central cutter is arranged at the center of the rotating disc, the plurality of cutters and the plurality of rectangular openings are distributed along the circumference of the center of the rotating disc, the plurality of mud inlets are irregularly distributed on the rotating disc, and the rectangular openings are used for the cutters on the auxiliary disc to extend to form a single reinforced cutter head or a composite cutter head.

[0007] Further, the auxiliary disc is provided with a special-shaped groove at the center, the end face of the special-shaped groove is connected to a rotating member through a reinforcing rib plate, the end of the rotating member is rotationally connected to the rotating disc, the rotating member is used to drive the auxiliary disc to rotate to realize the switching of the cutters, the auxiliary disc is provided with corresponding telescopic abutting blocks and guide cavities corresponding to the plurality of rectangular openings, the guide cavities are provided with a rolling cutter set slidingly connected therein, the rolling cutter set is connected to a moving member, and the moving member is used to drive the rolling cutter set to extend to the rectangular openings, the moving member is arranged in the rotating member, and the ends of the moving member and the rotating member both penetrate through the mud tank horizontally and are arranged in the working chamber and are independently provided with driving members.

[0008] Further, the rotating member comprises a first sleeve, the first sleeve is arranged at the end of the working chamber and is provided with a driven gear, the driven gear is engaged with a driving gear, the rotation of the driving gear drives the driven gear to rotate, thereby driving the auxiliary disc to rotate to realize the switching of the telescopic abutting blocks and the rolling cutter set, a rectangular through groove is symmetrically arranged on the first sleeve, and the rectangular through groove is used for the moving member to guide and slide.

[0009] Further, the moving member comprises a second sleeve slidingly connected in the first sleeve, the second sleeve is provided with a sliding block corresponding to the rectangular through groove, the sliding block is connected to a moving sleeve, and an outer end face of the moving sleeve is provided with a push connecting rod corresponding to the rolling cutter set.

[0010] Further, a locking member is arranged between the second sleeve and the main drive rod, the locking member is used to drive the second sleeve and the main drive rod to rotate synchronously, the locking member comprises a sliding base provided on the main drive rod, the sliding base is connected to the second sleeve, the sliding base is provided with a telescopic clamping part controlled by a power-on electromagnet to slide, the telescopic clamping part comprises an engaged section and a non-engaged section, and an inner tooth pattern is arranged on an inner end face of the second sleeve, when the power-on electromagnet is not powered on, the engaged section is engaged with the inner tooth pattern.

[0011] Further, the auxiliary positioning assembly comprises a first base, the first base is provided with a cavity and an arc-shaped upper end face, a plurality of through grooves are arranged on the arc-shaped end face to form a plurality of rib plates, a guide groove is arranged at the bottom of the cavity, a telescopic base is slidingly connected in the cavity, a protruding rib plate is arranged on the telescopic base corresponding to the through grooves, a pressure sensor is arranged on each of the plurality of rib plates and the protruding rib plate, and a sound prompt is arranged.

[0012] Further, the first base is provided with a slot on both sides, the telescopic base is provided with an extension block corresponding to the slot, and the extension block is provided with a sliding groove, and the sliding groove is provided with an anti-rotation piece. The anti-rotation piece is used to limit the rotation of the tool pipe shell when the tool pipe is initially inserted into the hole.

[0013] The application also provides a construction method, characterized in that the method comprises the following steps:

[0014] S1: constructing a slurry balance system;

[0015] S2: constructing a starting shaft;

[0016] S3: constructing a receiving shaft;

[0017] S4: installing an auxiliary positioning assembly, a back wall, and a jacking assembly in the starting shaft;

[0018] S5: jacking a tool pipe and a pipeline assembly to be jacked:

[0019] The tool pipe is pushed forward along the auxiliary positioning assembly by using the jacking assembly. The auxiliary disc of the tool pipe is determined to rotate and move according to the soil conditions of the road section and the distance between the nodes in different soil conditions before construction, and a single cutter head or a composite cutter head is formed with the cutter head assembly to enter the soil layer, excavate the soil, mix with the slurry in the slurry chamber, and discharge through the slurry discharge system. After the tunneling machine completely enters the soil layer, the cable and the slurry pipe are removed, and the first section of the pipeline to be jacked is lifted. It is pushed to the tail sleeve of the tunneling machine, connected to the jacking head, jacked, and then the excavation is stopped, the hydraulic system is slowly retracted, another section of the pipeline to be jacked is lifted into the well, and is connected together. The process is repeated until all the pipelines to be jacked are jacked into the soil layer, and a permanent underground pipeline is completed.

[0020] S6: grouting;

[0021] S7: tool pipe into receiving shaft:

[0022] The tool pipe is immediately separated from the jacking head and the pipeline to be jacked after entering the receiving shaft, and the construction is completed.

[0023] Beneficial effects:

[0024] 1. The application is provided with a rotating disc and an auxiliary disc, the auxiliary disc is provided with a telescopic abutting block and a cutter group, the auxiliary disc is driven by a rotating member to rotate by 36° to realize the switching of the telescopic abutting block and the cutter group. Each rotation by 36° realizes the switching of the cutter, which can adapt to the soil conditions of different construction sections, improve the construction efficiency, and reasonably use the cutter, effectively protect the cutter from serious wear and tear, and prolong the service life of the cutter.

[0025] 2. This application also includes an auxiliary positioning component, which can assist in the jacking path of the tool pipe and the pipe to be jacked, ensuring that the tool pipe and the pipe to be jacked are jacked into the same horizontal pipeline, thereby improving the construction quality. At the same time, the auxiliary positioning component is miniaturized, and the extension length of the telescopic base can be adjusted according to the width of the starting well. It can be retracted when not in use, reducing space occupation and facilitating transportation. This avoids the problem of existing guide rail splicing parts being scattered, which would require rebuilding the frame for subsequent use. Attached Figure Description

[0026] Figure 1 This is a construction diagram of the construction equipment;

[0027] Figure 2 This is a three-dimensional schematic diagram of the construction equipment;

[0028] Figure 3 This is a schematic diagram of the auxiliary positioning component;

[0029] Figure 4 This is a schematic diagram of the inside of the tool tube;

[0030] Figure 5 This is a schematic diagram of the auxiliary disk;

[0031] Figure 6 This is a schematic diagram of the rotating disk.

[0032] Reference numerals: 1. Jacking assembly; 2. Pipe assembly to be jacked; 21. Pipe to be jacked; 3. Auxiliary positioning assembly; 31. First base; 32. Cavity; 33. Rib; 34. Telescopic base; 35. Pressure sensor; 4. Tool tube; 41. Housing; 5. Cutter head assembly; 51. Rotating disc; 52. Main drive rod; 53. Center cutter; 54. Cutting blade; 55. Mud inlet; 56. Rectangular opening; 6. Auxiliary disc; 61. Irregular groove; 62. Telescopic abutment block; 64. Roller cutter assembly; 7. Rotating component; 71. First sleeve; 72. Driven gear; 73. Drive gear; 74. Rectangular through groove; 8. Moving component; 81. Second sleeve; 82. Sliding block; 83. Moving sleeve; 84. Push connecting rod; 9. Locking component; 91. Electromagnet; 92. Telescopic locking part; 93. Internal tooth pattern; 94. Sliding base; 10. Grooving; 11. Extension block; 12. Anti-rotation component. Detailed Implementation

[0033] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0034] For reference Figures 1-6As shown, this application provides a slurry-balanced pipe jacking construction device. The device includes a jacking component 1, a pipe to be jacked component 21, a slurry-balanced system, an auxiliary positioning component 3, and a tool pipe 4. The tool pipe 4 includes a housing 41, within which a slurry chamber and a working chamber are located. The slurry-balanced system is connected to the slurry chamber, thereby establishing a certain pressure within the slurry chamber to ensure stable excavation work of the tool pipe 4. The slurry-balanced system includes a mud pit, a mud discharge pipe, and a mud and water inlet pipe. The mud and water inlet pipe and the mud discharge pipe are connected to the slurry chamber via a pump body, enabling water and soil to mix with the slurry in the slurry chamber to form a slurry. The slurry is discharged through the mud discharge pipe. Since the slurry-balanced system is existing technology, it will not be described in detail here. The jacking assembly 1 and the auxiliary positioning assembly 3 are installed in the starting shaft. The jacking assembly 1 includes a back wall, a mounting bracket, and jacks mounted on the mounting bracket. Preferably, there are 4 sets of jacks. The telescopic ends of the jacks are connected to an annular jacking iron. The back wall provides reaction force to the jacks when jacking the pipe and always bears the recoil force when the jacks advance the pipe during the jacking process. It has sufficient strength and rigidity.

[0035] For reference Figure 2 , Figure 3 As shown, the auxiliary positioning component 3 includes a first base 31, the first base 31 has a cavity 32 and the upper end face of the cavity 32 is arc-shaped. The arc-shaped end face forms multiple ribs 33 by opening multiple through slots. The bottom of the cavity 32 has a guide slot. A telescopic base 34 is slidably connected in the cavity 32. The telescopic base 34 is used to extend the auxiliary path. The telescopic base 34 has raised ribs corresponding to the through slots. Pressure sensors 35 are provided on the multiple ribs 33 and the raised ribs and are equipped with sound prompts. When the tool tube 4 or the pipe to be pushed in 21 is not placed accurately, the pressure sensor 35 on the rib 33 will receive uneven pressure or no pressure information. Therefore, a sound prompt will be issued that the position of the tool tube 4 or the pipe to be pushed in 21 needs to be readjusted.

[0036] To prevent the tool pipe 4 from rotating due to various reasons during the process of pushing the tool pipe 4 into the hole, the existing technology will fix the tool pipe 4 by welding and then push it into the hole with a jack. After the pushing is completed, the weld is cut off and the pushing continues. Then the pipe to be pushed in is lowered and connected to the tail of the tool pipe 4 and pushed in with a jack. This process is repeated until the tool pipe 4 enters the receiving well. This application considers the welding process to be cumbersome and requires constant attention to the welding cut to prevent affecting subsequent insertion work. Therefore, slots 10 are provided on both sides of the first base 31, and extension blocks 11 are provided on the corresponding sides of the telescopic base 34. The extension blocks 11 are provided with sliding grooves, and anti-rotation components 12 are provided on the sliding grooves. The anti-rotation components 12 are used to restrict the rotation of the tool tube 4 housing 41 when the tool tube 4 is initially inserted into the opening. The anti-rotation components 12 include an arc plate, an adjusting rod at the bottom of the arc plate, and a rubber layer on the outer end face of the arc plate facing the tool tube 4. The adjusting rod is used to adjust the clamping degree of the arc plate on the tool tube 4, and the rubber layer further restricts the rotation of the tool tube 4.

[0037] For reference Figures 4-6As shown, a cutterhead assembly 5 is provided at the front end of the cement silo. The cutterhead assembly 5 includes a rotating disk 51. The inner end face of the rotating disk 51 has a cavity and a main drive rod 52 is connected to the center. The end of the main drive rod 52 passes through the slurry silo and is installed in the working chamber and is equipped with a drive motor. The outer end face of the rotating disk 51 is provided with a central cutter 53, multiple sets of cutters 54, multiple mud inlets 55 and multiple rectangular openings 56. The central cutter 53 is located at the center of the rotating disk 51. The multiple sets of cutters 54 and multiple rectangular openings 56 are distributed along the circumference of the center of the rotating disk 51. The multiple mud inlets 55 are irregularly distributed on the rotating disk 51, allowing the soil cut by the cutterhead to enter the slurry silo. The water inlet pipe of the slurry silo can be set in the inner end face of the rotating disk 51 through a branch pipe. Water can flush the soil remaining on the auxiliary disk 6 and enter the slurry silo to mix with the slurry in the slurry silo. The rectangular opening 56 allows the cutters on the auxiliary disc 6 to extend, forming a single reinforced cutterhead or a composite cutterhead. The diameter of the auxiliary disc 6 is smaller than the diameter of the rotating disc 51, creating a gap between the auxiliary disc 6 and the inner wall of the cavity, facilitating the entry of soil into the slurry chamber. Corresponding to multiple rectangular openings 56, the auxiliary disc 6 has a corresponding telescopic abutment block 62 and a guide cavity. The telescopic abutment block 62 is shaped like a quadrangular platform, connected to the auxiliary disc 6 via a telescopic spring rod. The telescopic abutment block 62 can abut against the rectangular opening 56, providing a certain degree of soil retention and preventing large pieces of soil from entering through the rectangular opening 56. The telescopic abutment block 62 is equipped with a contour cutter, forming a single reinforced cutterhead with the cutter 54 and the central cutter 53 on the rotating disc 51, adaptable to soft soil layers or soft rock strata. When the soil conditions are suitable, the cutter set 64 is not used and is protected. When hard rock or complex strata are encountered, the cutter set 64 is switched on. The cutter set 64, together with the cutter 54 and the center cutter 53 on the rotating disk 51, form a composite cutter head. The cutter set 64 is the main cutter and the cutter on the rotating disk 51 is the auxiliary cutter for cutting.

[0038] like Figure 5 , Figure 6As shown, the auxiliary disk 6 has a shaped groove 61 at its center. The end face of the shaped groove 61 is connected to the rotating component 7 through a reinforcing rib. The end of the rotating component 7 is rotatably connected to the rotating disk 51, realizing the switching of the cutters on the auxiliary disk 6. The hobbing cutter assembly 64 is equipped with a moving component 8, which is used to push the hobbing cutter assembly 64 to extend into the rectangular opening 56, realizing the preliminary digging of the hobbing cutter assembly 64. The moving component 8 is set inside the rotating component 7. The ends of both the moving component 8 and the rotating component 7 are transversely penetrating the mud and water chamber and are set in the working chamber, and are independently equipped with a driving component. The rotating component 7 includes a first sleeve 71, which is located at the end of the working chamber and has a driven gear 72. The driven gear 72 meshes with a driving gear 73. The rotation of the driving gear 73 drives the driven gear 72 to rotate, thereby realizing the switching of the cutter on the auxiliary disc 6. The first sleeve 71 is symmetrically provided with rectangular through slots 74, which provide guides for the sliding of the moving component 8. The moving component 8 includes a second sleeve 81 slidably connected inside the first sleeve 71. The second sleeve 81 is provided with a sliding block 82 corresponding to the rectangular through slot 74. The sliding block 82 is connected to the moving sleeve 83. The outer end face of the moving sleeve 83 is provided with a push connecting rod 84 corresponding to the hob assembly 64. The working chamber is provided with a driving component corresponding to the connecting rod of the second sleeve 81. The driving component is a hydraulic telescopic rod. The moving sleeve 83 moves with the push connecting rod 84 by the push of the hydraulic telescopic rod, thereby extending the hob assembly 64.

[0039] like Figure 4 As shown, to ensure that the auxiliary cutterhead is properly adjusted and rotates synchronously with the rotating disk 51 to achieve tunneling, a locking element 9 is provided between the second sleeve 81 and the main drive rod 52. The locking element 9 is used to link the second sleeve 81 and the main drive rod 52 to rotate synchronously. The locking element 9 includes a sliding base 94 provided on the main drive rod 52. The sliding base 94 is connected to the second sleeve 81. The sliding base 94 is provided with a telescopic locking part 92 controlled by an electromagnet 91. The telescopic locking part 92 includes an engaging section and an unengaged section. The second sleeve 81 The inner end face is provided with internal teeth 93. When the electromagnet 91 is not energized, the meshing section meshes with the internal teeth 93. When the main drive rod 52 rotates, it drives the second sleeve 81 to rotate, which in turn drives the auxiliary disk 6 and the rotating disk 51 to rotate synchronously. When it is necessary to switch tools, the electromagnet 91 is energized, which causes the telescopic locking part 92 to retract, so that the meshing section disengages from the internal teeth 93. Then, the rotating part 7 is activated to rotate the auxiliary disk 6 to realize the tool switching. The rotation angle between the telescopic abutment block 62 and the hob assembly 64 is set to 36°. Rotating 36° is one tool switching.

[0040] This application also provides a construction method, including the following steps:

[0041] S1: Construct a mud-water balance system;

[0042] S2: Construct the launching well;

[0043] S3: Construct a receiving well;

[0044] S4: The auxiliary positioning components, back wall mounting, and jacking components are installed inside the launching shaft;

[0045] S5: Tool tube and jacking pipe assembly jacking in:

[0046] The tool pipe is advanced forward along the auxiliary positioning component using the jacking assembly. The auxiliary disc of the tool pipe rotates and moves accordingly based on the soil conditions and distance nodes of different soil types before construction, forming a single or composite cutterhead with the cutterhead assembly to enter the soil layer, excavate the soil, and mix it with the mud in the mud chamber before being discharged through the slurry discharge system. After the tunneling machine has completely entered the soil layer, the cables and mud pipes are removed, the first section of the pipe to be jacked is hoisted down, and it is pushed to the tail of the tunneling machine. After being jacked by the connecting pipe of the tunneling head, the excavation ends, the hydraulic system slowly retracts, and another section of the pipe to be jacked is hoisted into the well, fitted behind the first section of the pipe to be jacked, connected together, and jacked again. The process is repeated until all the pipes to be jacked are jacked into the soil layer, completing a permanent underground pipeline.

[0047] S6: Grouting;

[0048] Grouting begins from the first hole of each section of pipe to be jacked in, continuing until grout comes out of the next hole. After each section is grouted, it is left to stand for 6 to 8 hours before a second grouting is performed. The pressure of the second grouting remains unchanged until no more grout can be pressed in. In pipe sections with small gaps at the top, grouting inside the pipe is used. In pipe sections with large gaps at the top, a combination of grouting inside the pipe and ground grouting is used to improve the grouting effect.

[0049] S7: Tool pipe enters the receiving well:

[0050] After the entire tool pipe enters the receiving well, the machine head and the pipe to be jacked are immediately separated to complete the construction.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A slurry-balanced pipe jacking construction device, comprising a jacking assembly (1), a pipe assembly to be jacked (2), and a slurry-balanced system, wherein the jacking assembly (1) is installed in the launching shaft, and the pipe assembly to be jacked (2) comprises a plurality of pipes (21) to be jacked arranged in a series of closely connected end-to-end configurations, characterized in that: It also includes an auxiliary positioning component (3) and a tool tube (4). The auxiliary positioning component (3) is installed in the starting well and is used to assist the jacking component (1) in the movement path of the tool tube (4) and the pipe (21) to be jacked. The tool tube (4) includes a shell (41), and a mud and water chamber and a working chamber are provided inside the shell (41). The mud and water chamber is connected to a mud and water balance system to stabilize the pressure at the front end of the tool tube (4). A cutter head assembly (5) is provided at the front end of the mud and water chamber. The cutter head assembly (5) can switch between a single reinforced cutter head or a composite cutter head according to the soil conditions of the section to be jacked. The cutter head assembly (5) includes a rotating disk (51), the inner end face of the rotating disk (51) is provided with a cavity and the center is connected to a main drive rod (52), the outer end face of the rotating disk (51) is provided with a central blade (53), multiple sets of cutting blades (54), multiple mud inlets (55) and multiple rectangular openings (56), the rectangular openings (56) are provided for the blades on the auxiliary disk (6) to extend out to form a single reinforced cutter head or a composite cutter head; The auxiliary disk (6) has a shaped groove (61) at its center. The end face of the shaped groove (61) is connected to a rotating component (7) through a reinforcing rib. The rotating component (7) is used to drive the auxiliary disk (6) to rotate and switch the cutting tools. The auxiliary disk (6) has corresponding telescopic abutment blocks (62) and guide cavities for multiple rectangular openings (56). The guide cavity is provided with a slidably connected hob set (64). The hob set (64) is connected to a moving component (8), and the moving component (8) is used to drive the hob set. (64) Extends to the rectangular opening (56), the movable part (8) is set inside the rotating part (7), the rotating part (7) includes a first sleeve (71), the first sleeve (71) is symmetrically provided with rectangular through grooves (74), the rectangular through grooves (74) are used to guide the movable part (8) to slide, the movable part (8) includes a second sleeve (81) slidably connected inside the first sleeve (71), and a locking part (9) is provided between the second sleeve (81) and the main drive rod (52).

2. The slurry balance pipe jacking construction device according to claim 1, characterized in that: The end of the main drive rod (52) is transversely inserted through the mud and water chamber and is installed in the working chamber and equipped with a drive motor. The central blade (53) is set in the center of the rotating disk (51). Multiple sets of cutters (54) and multiple rectangular openings (56) are distributed along the circumference of the center of the rotating disk (51). Multiple mud inlets (55) are irregularly distributed on the rotating disk (51).

3. The slurry balance pipe jacking construction device according to claim 2, characterized in that: The end of the rotating part (7) is rotatably connected to the rotating disk (51). The ends of the moving part (8) and the rotating part (7) are both transversely connected through the mud and water chamber and are set in the working chamber and are independently equipped with driving parts.

4. The slurry balance pipe jacking construction device according to claim 3, characterized in that: The first sleeve (71) is provided at the end of the working chamber and is equipped with a driven gear (72). The driven gear (72) meshes with the driving gear (73). The rotation of the driving gear (73) drives the driven gear (72) to rotate, which in turn drives the auxiliary disk (6) to rotate, thereby realizing the switching between the telescopic abutment block (62) and the hobbing cutter group (64).

5. The slurry balance pipe jacking construction device according to claim 4, characterized in that: The second sleeve (81) is provided with a sliding block (82) corresponding to the rectangular through groove (74). The sliding block (82) is connected to the movable sleeve (83). The outer end face of the movable sleeve (83) is provided with a push connecting rod (84) corresponding to the hobbing cutter group (64).

6. The slurry balance pipe jacking construction device according to claim 5, characterized in that: The locking member (9) is used to link the second sleeve (81) and the main drive rod (52) to rotate synchronously. The locking member (9) includes a sliding base (94) provided on the main drive rod (52). The sliding base (94) is connected to the second sleeve (81). The sliding base (94) is provided with a telescopic locking part (92) controlled by an electromagnet (91) for sliding. The telescopic locking part (92) includes an engaging section and an unengaged section. The inner end face of the second sleeve (81) is provided with internal teeth (93). When the electromagnet (91) is not energized, the engaging section engages with the internal teeth (93).

7. The slurry balance pipe jacking construction device according to claim 6, characterized in that: The auxiliary positioning component (3) includes a first base (31), which has a cavity (32) and an arc-shaped upper surface. The arc-shaped end face forms multiple ribs (33) by opening multiple through slots. The bottom of the cavity (32) is provided with a guide slot. A telescopic base (34) is slidably connected inside the cavity (32). The telescopic base (34) is provided with a raised rib corresponding to the through slot. Pressure sensors (35) are provided on the multiple ribs (33) and the raised ribs, and sound prompts are provided.

8. The slurry balance pipe jacking construction device according to claim 7, characterized in that: The first base (31) has slots (10) on both sides. The telescopic base (34) has an extension block (11) on its side and a sliding groove on the extension block (11). The sliding groove is provided with an anti-rotation component (12). The anti-rotation component (12) is used to restrict the rotation of the tool tube (4) housing (41) when the tool tube (4) is initially pushed into the hole.

9. The construction method of the slurry balance pipe jacking construction device as described in any one of claims 1-8, characterized in that: Includes the following steps: S1: Construct a mud-water balance system; S2: Construct the launching well; S3: Construct a receiving well; S4: The auxiliary positioning component (3) and the back wall installation and jacking component (1) are installed in the launching shaft; S5: Tool tube (4) and jacking pipe assembly (2) jacking: Using the jacking assembly (1), the tool pipe (4) is pushed forward along the auxiliary positioning assembly (3). The auxiliary disc (6) of the tool pipe (4) determines the subsequent rotation and movement with the cutterhead assembly (5) according to the soil conditions of the road section and the distance nodes of different soil conditions before construction. It enters the soil layer, excavates the soil, enters the mud and water chamber and mixes with the mud and discharges it through the slurry discharge system. After the tunneling machine has completely entered the soil layer, the cable and mud pipe are removed, the first section of the pipe to be jacked (21) is hoisted down, it is pushed to the tail sleeve of the tunneling machine, and after being jacked by the connecting pipe of the tunneling head, the excavation ends, the hydraulic pressure is slowly withdrawn, and another section of the pipe to be jacked (21) is hoisted into the well and fitted behind the first section of the pipe to be jacked (21), connected together, and jacked again. The process is repeated until all the pipes to be jacked (21) are jacked into the soil layer, and a permanent underground pipeline is completed. S6: Grouting; S7: Tool pipe (4) enters the receiving well: After the tool pipe (4) enters the receiving well as a whole, the machine head and the pipe to be jacked in (21) are immediately separated to complete the construction.

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