Embedded mounting device and process for PCCP (prestressed concrete cylinder pipe) on complex foundation

Abstract

The invention discloses a device and process for embedding and mounting a PCCP (prestressed concrete cylinder pipe) on a complex foundation, the device comprises two portal frames, the two sides of the bottom end of each portal frame are both provided with walking mechanisms, and the top ends of the two portal frames are both slidably provided with right-angle sliding tables; telescopic driving units are installed on the outer walls of the opposite sides of the two right-angle sliding tables, and interval-adjustable belt wheel transverse moving modules used for driving the right-angle sliding tables to slide in the X-axis direction are installed on the outer walls of the sides, away from each other, of the two portal frames. And the Z-axis gear lifting module is mounted on the outer wall of one side of the right-angle sliding table. The pipeline is prevented from being directly bound, the deformation risk caused by the self weight of the pipeline is reduced, the position and height of the pipeline bearing mechanism are accurately controlled, it is guaranteed that the pipeline is kept stable in the whole moving and lifting process, and it is guaranteed that the pipeline is not damaged in the lifting and transferring process.

Description

Technical Field

[0001] The present invention relates to the technical field of PCCP pipeline installation, and in particular to a device and process for embedding and installing a PCCP pipeline on a complex foundation. Background Art

[0002] As a prestressed concrete pipe system, PCCP pipe plays a role in drainage and conduction in water supply, drainage and other liquid transportation projects. Its core structure consists of an inner reinforced concrete cylinder, prestressed steel wire and an outer reinforced concrete cylinder, which ensures its pressure bearing capacity, corrosion resistance and long life characteristics. In order to place the PCCP pipe stably in the tunnel, it is necessary to use an embedded installation device. The embedded installation device assists the staff to complete the embedding steps. It is necessary to first prepare the excavation and pipe bed to ensure the excavation depth and the stability of the pipe bed, and then suspend, lower and install the PCCP pipe section by section. The process includes the correct positioning and connection of each section of the pipe, and ensuring that the connection is firm and sealed. After the installation is completed, the pipe needs to be buried and backfilled, and backfilled layer by layer and compacted to ensure that the pipe is fully supported and the original load capacity of the ground is restored; For example, a pre-buried pipe laying and landfilling device disclosed in the authorization announcement number CN219364649U includes a frame, a driving wheel, a motor fixedly installed on the outer wall of the frame, a first ball screw fixedly connected to the output end of the motor, and two first support blocks symmetrically fixedly connected to the outer wall of the frame. The first ball screw is rotatably connected to the first support block, and is used in conjunction with a screw nut moving block and a push plate. When the user needs to fill the pre-buried pipe inside the pit, the user can turn on the motor to drive the first ball screw to rotate, and then the first ball screw can make the two screw nut moving blocks move closer to the center at the same time through two sets of opposite threads on the outside, and the bottom of the push plate can push the raised soil pile. The soil pile is pushed and leveled so that it can enter the interior of the pit. This technical solution is mainly designed for the soil backfilling operation after the pipeline enters the tunnel. Before the PCCP pipeline enters the tunnel, special lifting equipment is required to lift the pipeline and lower it into the soil tunnel under the traction of the staff. However, in the process of lifting the PCCP pipeline, due to the large diameter and volume of the PCCP pipeline, the method of lifting the PCCP pipeline by binding with a rope is prone to deformation of the pipeline due to its own weight and cracking of the lifting point. That is, in the long-distance lifting process, uneven stress distribution occurs at the pipeline and the binding point, which will cause the pipeline to deform or even break in extreme cases. Summary of the invention

[0003] The purpose of the present invention is to provide a device and process for burying and installing a PCCP pipeline on a complex foundation. The gantry, pipeline supporting mechanism and other structures are moved to the vicinity of the PCCP pipeline by a walking mechanism, and the spacing between the two pipeline supporting mechanisms is controlled by a spacing-adjustable pulley transverse movement module. The two pipeline supporting mechanisms move downward under the control of a Z-axis gear lifting module until the pipeline supporting mechanism is adjusted to a suitable state and the PCCP pipeline is supported and erected. Finally, the device is moved to the buried tunnel by the walking mechanism to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a PCCP pipeline embedded installation device on a complex foundation, comprising: A gantry, wherein two gantry are provided, both sides of the bottom of the gantry are equipped with walking mechanisms, the tops of the two gantry are slidably equipped with right-angle slides, a telescopic driving unit is installed on the outer walls of the two right-angle slides on the opposite sides, and a spacing-adjustable pulley lateral movement module for driving the right-angle slides to slide in the X-axis direction is installed on the outer walls of the two gantry away from each other; A Z-axis gear lifting module is installed on an outer wall of one side of a right-angle slide, a hanger is installed on the movable end of the Z-axis gear lifting module, a pipe sleeve guide structure for maintaining a sliding connection with the hanger on the other side is installed on the top of the hanger, and a pipe supporting mechanism for supporting the PCCP pipe is installed on the bottom of the hanger, a PLC control panel is installed on the outer wall of one side of one of the gantry frames, and the output end of the PLC control panel is electrically connected to the input end of the spacing-adjustable pulley transverse movement module, the telescopic drive unit, the Z-axis gear lifting module and the pipe supporting mechanism.

[0005] Preferably, the walking mechanism includes a steel plate bolted to the bottom end of the gantry, and universal wheels installed on both sides of the bottom end of the steel plate.

[0006] Preferably, the Z-axis gear lifting module includes a circular vertical arm slidably mounted on the outer wall of one side of the right-angle slide, a helical rack fixed on the outer wall of one side of the circular vertical arm, and a gear driving unit installed on the outer wall of one side of the right-angle slide.

[0007] Preferably, the gear drive unit includes a stepper motor installed on the outer wall of one side of the right-angle slide and an active bevel gear installed at the output end of the stepper motor for meshing with the bevel rack. A dovetail track is fixed to the top of the gantry, and a sliding sleeve that slides with the dovetail track is installed at the bottom end of the right-angle slide.

[0008] Preferably, the spacing-adjustable pulley transverse shifting module includes a main belt transfer drive structure, a secondary belt transfer drive structure, and a telescopic transmission shaft for connecting the main belt transfer drive structure and the secondary belt transfer drive structure, which are installed on the outer walls of the two gantries on one side away from each other. A motor seat is installed on the outer wall of one side of the gantry, and a reduction motor is installed on the back of the motor seat. The output end of the reduction motor is interconnected with the input end of the main belt transfer drive structure and one end of the telescopic transmission shaft.

[0009] Preferably, the telescopic transmission shaft includes an inner spline shaft installed at the top end of the output end of the reduction motor, and an outer spline shaft slidably installed inside the inner spline shaft, and one end of the outer spline shaft is interconnected with the input end of the auxiliary belt transfer drive structure.

[0010] Preferably, the pipe sleeve guide structure includes convex pipe seats fixed on both sides of the top end of the hanger, an outer guide pipe fixed inside the convex pipe seat, and a straight rod slidably installed inside the outer guide pipe.

[0011] Preferably, the pipeline supporting mechanism includes a main support beam fixed on one side of the interior of the hanger, a cylinder hingedly installed on both sides of the top wall of the hanger, bending arms mounted on both ends of the surface of the main support beam, and a lower profile beam fixed at the bottom ends of the two bending arms, a plurality of right-angle trailing arms are evenly installed at the bottom end of the lower profile beam, a lug portion is integrally formed on the outer wall of one side of the bending arm, and the top end of the lug portion is hinged to the top end of the piston rod of the cylinder.

[0012] Preferably, a baffle is fixed to the top end of the right-angle trailing arm, and the back side of the baffle is bolted to the surface of the lower profile beam.

[0013] The present invention also provides a process for embedding and installing a PCCP pipe on a complex foundation, such as the embedding and installing device described above, comprising the following steps: S101: Carry out pipeline excavation according to design requirements and terrain conditions. After the pipeline excavation is completed, ensure that the bottom of the pipeline bed is flat and can provide sufficient support; S102: Pushing the gantry, the pipeline supporting mechanism and other components to the location of the PCCP pipeline through the walking mechanism, and making the PCCP pipeline located between the two pipeline supporting mechanisms; S103: After the device is moved into position and the position is accurately adjusted, the Z-axis gear lifting module drives the hanger, the pipe sleeve guide structure and the pipeline support mechanism to actively move downward until the pipeline support mechanism is located on one side of the PCCP pipeline; S104: The telescopic drive unit is turned on through the PLC control panel to work, and the telescopic drive unit pulls the two gantries closer to each other, that is, the two pipe supporting mechanisms closer to each other, until the PCCP pipe is stably supported and clamped by the two pipe supporting mechanisms; S105: The device moves to the pre-excavated pipe bed position, and the adjustable spacing pulley traverse module drives the right-angle slide, Z-axis gear lifting module, hanger, pipe support mechanism, PCCP pipe and other components to move in the X-axis and the extension direction of the pipe bed until the PCCP pipe is accurately moved to the buried point; S106: The Z-axis gear lifting module drives the hanger, pipe support mechanism, pipe, etc. downward until they are buried in the pipe bed, and fills the soil into the gap around the pipe until it is covered and completely buried underground. During the filling process, it is necessary to backfill layer by layer and perform appropriate compaction.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the buried installation device and process of the PCCP pipeline on a complex foundation can avoid direct bundling of the pipeline by using a walking mechanism and a designed pipeline supporting mechanism, a right-angle slide and other structures, reducing the risk of deformation caused by the pipeline's own weight, and by precisely controlling the position and height of the pipeline supporting mechanism, ensuring that the pipeline remains stable during the entire movement and lifting process, and ensuring that the pipeline will not be damaged during lifting and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the second embodiment of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the pitch-adjustable pulley transverse shifting module according to the second embodiment of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the Z-axis gear lifting module according to the second embodiment of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the pipeline supporting mechanism according to the third embodiment of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the pipeline supporting mechanism according to the third embodiment of the present invention.

[0016] In the figure: 1. gantry; 2. walking mechanism; 3. spacing adjustable pulley transverse movement module; 301. main belt conveying drive structure; 302. auxiliary belt conveying drive structure; 303. motor seat; 304. reduction motor; 305. telescopic transmission shaft; 3051. inner spline shaft; 3052. outer spline shaft; 4. right-angle slide; 5. telescopic drive unit; 6. Z-axis gear lifting module; 601. round vertical arm; 602. bevel rack; 603. gear drive unit; 7. hanger; 8. pipe sleeve guide structure; 801. embossed pipe seat; 802. outer guide pipe; 803. straight rod; 9. pipeline supporting mechanism; 901. main support beam; 902. cylinder; 903. bending arm; 904. lug; 905. lower profile beam; 906. right-angle drag arm; 907. baffle; 10. PLC control panel. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1, by Figures 1 to 3 The present invention includes a gantry 1, two gantry 1s are provided, and walking mechanisms 2 are installed on both sides of the bottom of the gantry 1. The walking mechanisms 2 include a steel plate bolted to the bottom of the gantry 1 and universal wheels installed on both sides of the bottom of the steel plate. The walking mechanisms 2 are installed at the bottom of the gantry 1 and are used to move the entire device to the vicinity of the PCCP pipeline; A right-angle slide 4 is slidably installed at the top of the two gantries 1. A telescopic drive unit 5 is installed on the outer wall of the opposite side of the two right-angle slides 4. The telescopic drive unit 5 can be a hydraulic cylinder, a pneumatic cylinder or an electric push rod. A spacing-adjustable pulley lateral movement module 3 for driving the right-angle slide 4 to slide in the X-axis direction is installed on the outer wall of the two gantries 1 away from each other. The gantry 1 provides structural support and motion tracks for the spacing-adjustable pulley lateral movement module 3, so that the entire lifting process of the pipeline can be carried out on a stable platform; A Z-axis gear lifting module 6 is installed on one side outer wall of the right-angle slide 4, a hanger 7 is installed on the movable end of the Z-axis gear lifting module 6, a pipe sleeve guide structure 8 for maintaining a sliding connection with the hanger 7 on the other side is installed on the top of the hanger 7, and a pipe supporting mechanism 9 for supporting the PCCP pipe is installed on the bottom of the hanger 7, a PLC control panel 10 is installed on one side outer wall of one of the gantry frames 1, and the output end of the PLC control panel 10 is electrically connected to the spacing adjustable pulley transverse movement module 3, the telescopic drive unit 5, the Z-axis gear lifting module 6 and the input end of the pipe supporting mechanism 9; A buried installation process of a PCCP pipe on a complex foundation in this embodiment, such as the buried installation device mentioned above, includes the following steps: S101: Carry out pipeline excavation according to design requirements and terrain conditions. After the pipeline excavation is completed, ensure that the bottom of the pipeline bed is flat and can provide sufficient support; S102: Push the gantry 1, the pipeline supporting mechanism 9 and other components to the location of the PCCP pipeline through the walking mechanism 2, and make the PCCP pipeline located between the two pipeline supporting mechanisms 9; S103: After the device is moved into position and the position is adjusted accurately, the Z-axis gear lifting module 6 drives the hanger 7, the pipe sleeve guide structure 8 and the pipeline support mechanism 9 to actively move downward until the pipeline support mechanism 9 is located on one side of the PCCP pipeline; S104: The telescopic drive unit 5 is turned on through the PLC control panel 10 to work, and the telescopic drive unit 5 pulls the two gantries 1 closer to each other, that is, the two pipe supporting mechanisms 9 closer to each other, until the PCCP pipe is stably supported and clamped by the two pipe supporting mechanisms 9; S105: The device moves to the pre-excavated pipe bed position, and the adjustable spacing pulley transverse movement module 3 drives the right-angle slide 4, the Z-axis gear lifting module 6, the hanger 7, the pipe support mechanism 9 and the PCCP pipe and other components to move in the X-axis and the extension direction of the pipe bed until the PCCP pipe is accurately moved to the buried point; S106: The Z-axis gear lifting module 6 drives the hanger 7, the pipeline supporting mechanism 9, the pipeline, etc. to move downward until they are buried in the pipeline bed, and fills the soil into the gap around the pipeline until it is covered and completely buried underground. During the filling process, it is necessary to backfill layer by layer and perform appropriate compaction.

[0019] Embodiment 2, based on embodiment 1, Figure 4 , Figure 5 and Figure 6 It is given that the Z-axis gear lifting module 6 includes a circular vertical arm 601 slidably mounted on the outer wall of one side of the right-angle slide 4, a helical rack 602 fixed on the outer wall of one side of the circular vertical arm 601, and a gear driving unit 603 installed on the outer wall of one side of the right-angle slide 4; The gear drive unit 603 includes a stepper motor installed on the outer wall of one side of the right-angle slide 4 and an active bevel gear installed at the output end of the stepper motor for meshing with the bevel rack 602. When the pipeline support mechanism 9 picks up the PCCP pipeline, the staff turns on the gear drive unit 603 through the PLC control panel 10 to work, and the stepper motor in the gear drive unit 603 drives the bevel rack 602 and the circular arm 601 to rise and fall through the active bevel gear. In this process, the lifting direction of the bevel rack 602, the bevel rack 602 and other components is controlled by the rotation direction of the stepper motor, so as to accurately control the height of the PCCP pipeline, so that the PCCP pipeline can be buried in the pipeline bed; A dovetail track is fixed on the top of the gantry 1, a sliding sleeve that slides with the dovetail track is installed at the bottom of the right-angle slide 4, and the spacing-adjustable pulley transverse movement module 3 includes a main belt transfer drive structure 301, a secondary belt transfer drive structure 302, and a telescopic transmission shaft 305 for connecting the main belt transfer drive structure 301 and the secondary belt transfer drive structure 302, which are installed on the outer wall of one side of the two gantries 1. A motor seat 303 is installed on the outer wall of one side of the gantry 1, and a reduction motor 304 is installed on the back of the motor seat 303. The output end of the reduction motor 304 is connected to the input end of the main belt transfer drive structure 301 and one end of the telescopic transmission shaft 305. The rotary power of the reduction motor 304 is transmitted to the main belt transfer drive structure 301 and the auxiliary belt transfer drive structure 302 through the telescopic transmission shaft 305. The main belt transfer drive structure 301 and the auxiliary belt transfer drive structure 302 drive the right-angle slide 4, the hanger 7, the pipe sleeve guide structure 8 and other components to move in the X-axis direction until the PCCP pipeline moves to the embedding point. The instant noodle staff quickly completes the embedding and installation of the PCCP pipeline. The telescopic transmission shaft 305 includes an inner spline shaft 3051 installed at the top of the output end of the reduction motor 304, and an outer spline shaft 3052 slidably installed inside the inner spline shaft 3051, one end of the outer spline shaft 3052 is interconnected with the input end of the auxiliary belt transfer drive structure 302, and the two gantries 1 are driven by the telescopic drive unit 5 to approach each other. At this time, the inner spline shaft 3051 and the outer spline shaft 3052 slide relative to each other, that is, the length of the telescopic transmission shaft 305 is reduced, and at this time, the main belt transfer drive structure 301 and the auxiliary belt transfer drive structure 302 still maintain a power transmission state, so that the main belt transfer drive structure 301 and the auxiliary belt transfer drive structure 302 still maintain power connection after adjusting the spacing, and by adjusting the spacing between the two pipeline support mechanisms 9 to adapt to PCCP pipelines of different diameters, the pipeline can be better able to enter the buried tunnel smoothly and accurately.

[0020] Embodiment 3, based on embodiment 2, Figure 7 and Figure 8It is given that the pipeline supporting mechanism 9 includes a main support beam 901 fixed to one side of the inside of the hanger 7, a cylinder 902 hingedly installed on both sides of the top wall of the hanger 7, a bending arm 903 sleeved on both ends of the surface of the main support beam 901 and a lower profile beam 905 fixed at the bottom ends of the two bending arms 903, a plurality of right-angle drag arms 906 are evenly installed at the bottom end of the lower profile beam 905, a lug portion 904 is integrally formed on the outer wall of one side of the bending arm 903, the top of the lug portion 904 is hinged to the top of the piston rod of the cylinder 902, a baffle plate 907 is fixed to the top of the right-angle drag arm 906, the back of the baffle plate 907 is bolted to the surface of the lower profile beam 905, and the lower profile beam 905 is used to connect the bending arm 903, the baffle plate 907 and the right-angle drag arm 906; During the operation of the pipeline supporting mechanism 9, the cylinder 902 actively extends, and the piston rod of the cylinder 902 forces the bending arm 903 to deflect with the main support beam 901 as the central axis through the lug portion 904. At this time, the right-angle trailing arm 906 will swing upward and actively support the lower arc surface of the PCCP pipeline until the PCCP pipeline is stably supported; the baffle 907 is used to contact the side wall of the PCCP pipeline to ensure that the pipeline will not be damaged during lifting and transportation; The pipe sleeve guiding structure 8 includes a convex pipe seat 801 fixed on both sides of the top of the hanger 7, an outer guide tube 802 fixed inside the convex pipe seat 801, and a straight rod 803 slidably installed inside the outer guide tube 802. When the spacing between the two pipe supporting mechanisms 9 is adjusted, the straight rod 803 will slide relative to the outer guide tube 802 under the drive of the other hanger 7, ensuring that no lateral movement or twisting will occur between the two hangers 7 and the two pipe supporting mechanisms 9 during the lifting process of the pipeline.

[0021] When the embodiment of the present application is used, the staff first excavates the pipeline according to the design requirements and terrain conditions. The depth and width of the excavation should take into account the diameter, burial depth and soil type of the pipeline. After the pipeline excavation is completed, ensure that the bottom of the pipeline bed is flat and can provide sufficient support. Then the staff pushes the gantry 1, the pipeline support mechanism 9 and other components to the location of the PCCP pipeline through the walking mechanism 2, and makes the PCCP pipeline located between the two pipeline support mechanisms 9. At this time, the extension direction of the gantry 1 is parallel to the extension direction of the PCCP pipeline. After the device is moved into place and the position is adjusted accurately, The staff starts the Z-axis gear lifting module 6 through the PLC control panel 10 to work, and the Z-axis gear lifting module 6 drives the hanger 7, the pipe sleeve guide structure 8 and the pipeline support mechanism 9 to actively move downward until the pipeline support mechanism 9 is located on one side of the PCCP pipeline, and the load-bearing end of the pipeline support mechanism 9 is lower than the horizontal plane where the center axis of the PCCP pipeline is located. The staff starts the telescopic drive unit 5 through the PLC control panel 10 to work, and the telescopic drive unit 5 pulls the two gantries 1 closer to each other, that is, the two pipeline support mechanisms 9 closer to each other, until the load-bearing end of the pipeline support mechanism 9 is in contact with the curved wall of the PCCP pipeline. The PCCP pipeline is in contact with the two pipeline supporting mechanisms 9, and as the two pipeline supporting mechanisms 9 continue to approach, the PCCP pipeline will be actively lifted up and away from the ground, until the PCCP pipeline is stably lifted up and clamped by the two pipeline supporting mechanisms 9. After that, the staff moves the device to the pre-excavated pipeline bed position through the walking mechanism 2 and the gantry 1, and makes the PCCP pipeline suspended just above the pipeline bed. At this time, the staff turns on the adjustable spacing pulley transverse movement module 3 through the PLC control panel 10 to work, and the adjustable spacing pulley transverse movement module 3 drives the right-angle slide 4, the Z-axis gear lifting module 6, the hanger 7, the pipeline supporting mechanism 9 and the PCCP The pipeline and other components move in the X-axis and the extension direction of the pipeline bed until the PCCP pipeline is accurately moved to the burial point, and then the Z-axis gear lifting module 6 drives the hanger 7, the pipeline supporting mechanism 9, the pipeline, etc. to move downward until it is buried in the pipeline bed. When the pipeline is buried, the device is moved out of the working area, and the earth is gradually filled into the gap around the pipeline until it is covered and completely buried underground. During the filling process, it is necessary to backfill layer by layer and carry out appropriate compaction to restore the original load capacity of the ground and ensure that the pipeline is fully supported. Then the staff follows the same steps to bury, dock and seal the next pipeline.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCCP pipe embedded installation device on a complex foundation, characterized in that: include: A gantry (1), wherein two gantry (1) are provided, both sides of the bottom end of the gantry (1) are equipped with a walking mechanism (2), the top ends of the two gantry (1) are slidably equipped with a right-angle slide (4), a telescopic drive unit (5) is installed on the outer walls of the two right-angle slides (4) on the opposite sides, and a spacing-adjustable pulley transverse movement module (3) for driving the right-angle slide (4) to slide in the X-axis direction is installed on the outer walls of the two gantry (1) on the sides away from each other; A Z-axis gear lifting module (6) is installed on an outer wall of one side of a right-angle slide (4); a hanger (7) is installed on the movable end of the Z-axis gear lifting module (6); a pipe sleeve guide structure (8) for maintaining a sliding connection with the hanger (7) on the other side is installed on the top of the hanger (7); a pipe supporting mechanism (9) for supporting a PCCP pipe is installed on the bottom of the hanger (7); a PLC control panel (10) is installed on an outer wall of one side of one of the gantry frames (1); an output end of the PLC control panel (10) is electrically connected to an input end of the pitch-adjustable pulley transverse movement module (3), a telescopic drive unit (5), the Z-axis gear lifting module (6), and the pipe supporting mechanism (9).

2. According to claim 1, a PCCP pipe embedded installation device on a complex foundation is characterized by: The walking mechanism (2) comprises a steel plate bolted to the bottom end of the gantry (1), and universal wheels installed on both sides of the bottom end of the steel plate.

3. The buried installation device for PCCP pipes on complex foundations according to claim 1 is characterized by: The Z-axis gear lifting module (6) comprises a circular vertical arm (601) slidably mounted on an outer wall of one side of the right-angle slide (4), a helical rack (602) mounted on an outer wall of one side of the circular vertical arm (601), and a gear driving unit (603) mounted on an outer wall of one side of the right-angle slide (4).

4. The buried installation device for PCCP pipes on complex foundations according to claim 3 is characterized by: The gear drive unit (603) comprises a stepper motor mounted on an outer wall of one side of the right-angle slide (4) and an active bevel gear mounted on the output end of the stepper motor and used to mesh with the bevel rack (602). A dovetail track is fixed to the top end of the gantry (1), and a sliding sleeve is mounted at the bottom end of the right-angle slide (4) and is slidably matched with the dovetail track.

5. The device for embedding and installing a PCCP pipe on a complex foundation according to claim 1 is characterized in that: The pitch-adjustable pulley transverse shifting module (3) comprises a main belt transfer drive structure (301), a secondary belt transfer drive structure (302) and a telescopic transmission shaft (305) for connecting the main belt transfer drive structure (301) and the secondary belt transfer drive structure (302), the external wall of one side of the two gantries (1) being mounted thereon, and a motor seat (303) being mounted on the back of the motor seat (303) and a reduction motor (304) being mounted thereon, the output end of the reduction motor (304) being connected to the input end of the main belt transfer drive structure (301) and one end of the telescopic transmission shaft (305).

6. The device for embedding and installing a PCCP pipe on a complex foundation according to claim 5 is characterized in that: The telescopic transmission shaft (305) comprises an inner spline shaft (3051) mounted on the top end of the output end of the reduction motor (304), and an outer spline shaft (3052) slidably mounted inside the inner spline shaft (3051), and one end of the outer spline shaft (3052) is interconnected with the input end of the secondary belt transfer drive structure (302).

7. The device for embedding and installing a PCCP pipe on a complex foundation according to claim 1 is characterized in that: The pipe sleeve guide structure (8) comprises a convex pipe seat (801) fixed to both sides of the top end of the hanger (7), an outer guide pipe (802) fixed inside the convex pipe seat (801), and a straight rod (803) slidably mounted inside the outer guide pipe (802).

8. The device for embedding and installing a PCCP pipe on a complex foundation according to claim 1 is characterized in that: The pipeline supporting mechanism (9) comprises a main support beam (901) fixed to one side of the interior of the hanger (7), a cylinder (902) hingedly mounted on both sides of the top wall of the hanger (7), a bending arm (903) sleeved on both ends of the surface of the main support beam (901), and a lower profile beam (905) fixed at the bottom ends of the two bending arms (903), a plurality of right-angled trailing arms (906) being evenly spaced at the bottom end of the lower profile beam (905), a lug portion (904) being integrally formed on the outer wall of one side of the bending arm (903), and the top end of the lug portion (904) being hingedly connected to the top end of the piston rod of the cylinder (902).

9. The device for embedding and installing a PCCP pipe on a complex foundation according to claim 8, characterized in that: A baffle plate (907) is fixed to the top end of the right-angle trailing arm (906), and the back side of the baffle plate (907) is bolted to the surface of the lower profile beam (905).

10. A process for embedding and installing a PCCP pipe on a complex foundation, comprising the embedding and installing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S101: Carry out pipeline excavation according to design requirements and terrain conditions. After the pipeline excavation is completed, ensure that the bottom of the pipeline bed is flat and can provide sufficient support; S102: pushing the gantry (1), the pipeline supporting mechanism (9) and other components to the location of the PCCP pipeline through the walking mechanism (2), so that the PCCP pipeline is located between the two pipeline supporting mechanisms (9); S103: After the device is moved into position and the position is accurately adjusted, the Z-axis gear lifting module (6) drives the hanger (7), the pipe sleeve guide structure (8) and the pipeline support mechanism (9) to actively move downward until the pipeline support mechanism (9) is located on one side of the PCCP pipeline; S104: The telescopic drive unit (5) is turned on through the PLC control panel (10) to start working, and the telescopic drive unit (5) pulls the two gantries (1) closer to each other, that is, the two pipeline supporting mechanisms (9) closer to each other, until the PCCP pipeline is stably supported and clamped by the two pipeline supporting mechanisms (9); S105: the device moves to the position of the pre-excavated pipe bed, and the adjustable spacing pulley transverse movement module (3) drives the right-angle slide (4), the Z-axis gear lifting module (6), the hanger (7), the pipe support mechanism (9) and the PCCP pipe and other components to move in the X-axis and the extension direction of the pipe bed until the PCCP pipe is accurately moved to the buried point; S106: The Z-axis gear lifting module (6) drives the hanger (7), the pipeline support mechanism (9), the pipeline, etc. downward until they are buried in the pipeline bed, and fills the gap around the pipeline with soil until it is covered and completely buried underground. During the filling process, it is necessary to backfill layer by layer and perform appropriate compaction.

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