Digging and splicing integrated contact channel construction system

Abstract

The invention discloses a digging and splicing integrated connection channel construction system which comprises a digging device, a propelling device and a material conveying device, the digging device comprises water milling drills and a center rotation drive, the water milling drills are arranged on a first support, the center rotation drive is in transmission connection with the support, and the propelling device is arranged on the first support. The propelling device comprises a propelling part, a supporting frame, a top support, a top shield and a lateral support, the first end of the main beam is connected with the center rotary drive, the propelling part is arranged on the supporting frame to push the duct piece, the top shield is arranged on the main beam, and the top support is arranged on the side, close to the second end, of the main beam; the material conveying device comprises a segment erector, a material crane, a winch, a transport trolley and a ship-shaped plate, the winch is arranged on a support of the main tunnel, the ship-shaped plate is arranged between the main beam and the material crane, and the transport trolley is arranged below the main beam. The digging and splicing integrated connection channel construction system has the advantages of being convenient to install in a hole and high in construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of mountain tunnel construction, and in particular to a digging and splicing integrated communication channel construction system. Background Art

[0002] In the field of tunnel construction technology, multiple connecting passages are typically designed and constructed between two adjacent tunnels to serve various purposes, such as connecting tunnels, drainage, firefighting, and emergency escape. Due to the long sections, numerous connecting passages, and hard rock geology of mountain tunnels, the demand for connecting passages is increasing. Currently, connecting passages are constructed using a combination of non-explosive excavation and segment assembly. This separate tunneling and segment assembly process results in low tunnel formation efficiency, requires multiple pieces of equipment to operate in separate stages, and coordination between these pieces of equipment is difficult, leading to long construction periods. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a digging and splicing integrated communication channel construction system, which has the advantages of easy in-hole installation and high construction efficiency.

[0004] According to an embodiment of the present invention, the excavation and splicing integrated communication channel construction system includes an excavation device, a propulsion device and a material conveying device. The excavation device includes a water-grinding drill and a central rotary drive. Multiple water-grinding drills are arranged on a first bracket. The central rotary drive is transmission-connected to the bracket. The propulsion device includes a propulsion member, a support frame, a top support, a top shield and a lateral support. The lateral support is arranged on the main beam. A slide is provided on the top of the main beam. The first end of the main beam is connected to the central rotary drive. The propulsion member is arranged on the support frame to push the pipe segment. The top shield is arranged on the main beam to support the tunnel. The top support is arranged on the side of the main beam adjacent to the second end. The material conveying device includes a pipe segment assembler, a material crane, a winch and a ship-shaped plate. The pipe segment assembler is slidably connected to the slide. The material crane is adjacent to the main tunnel of the tunnel. The winch is arranged on the bracket of the main tunnel and transmission-connected to the ship-shaped plate. The ship-shaped plate is arranged between the main beam and the material crane.

[0005] The excavation and splicing integrated communication channel construction system according to the embodiment of the present invention has the advantages of easy installation in the tunnel and high construction efficiency. This solution can not only excavate the rock layer, but also assemble the pipe segments in the rear-end surrounding rock to complete the final formation of the tunnel. It saves construction time and construction costs. The tunnel adopts the pipe segment form with a good force structure and high forming quality. This system can perform excavation, assembly and grouting processes to facilitate the overall construction and rapid excavation of the communication channel. The modular construction of each device facilitates rapid disassembly, replacement and maintenance in the tunnel.

[0006] In some embodiments, the lateral support includes a front lateral support and a rear lateral support, and the front lateral support and the rear lateral support are respectively connected to the first end and the second end of the main beam.

[0007] In some embodiments, the top shield includes a front shield and a movable shield, the front shield is arranged at the first end of the main beam, and the movable shield is movably connected to the main beam.

[0008] In some embodiments, the excavation device also includes a radial moving device, which is connected to the water drill to drive the water drill to move along the radial direction of the tunnel. The radial moving device includes a rack and a drive motor, and the drive motor is engaged with the rack through a gear. The two drive motors are arranged at both ends of the rack.

[0009] In some embodiments, a front support and a rear support are provided on the propulsion device, and the front support and the rear support are arranged on the main beam to respectively support the first end and the second end of the main beam.

[0010] In some embodiments, the material conveying device further includes a segment crane, which is arranged on the main beam to convey segments to the segment assembly machine.

[0011] In some embodiments, the excavation device further includes a reaction rod, which is arranged on the first bracket.

[0012] In some embodiments, the propulsion device further includes a main beam telescopic sleeve, which is arranged on the main beam and connected to the segment assembling machine to drive the segment assembling machine to move along the main beam.

[0013] According to an embodiment of the present invention, the excavation and splicing integrated communication channel construction method includes the following steps:

[0014] During tunneling, the cylinders of the front lateral supports of the propulsion device extend to tighten the tunnel sidewalls, while the cylinders of the top support and rear lateral supports extend to tighten the tunnel segments; the front and rear supports level the structural height of the main beam, while the front and rear lateral supports tighten the tunnel and adjust the distance between the main beam and the tunnel sidewalls;

[0015] The central rotary drive and radial movement device respectively adjust the circumferential position of the bracket and the water grinding drill and the radial rear water grinding drill to drill holes;

[0016] To discharge slag, the front lateral support cylinder retracts and moves toward the second end of the main beam, then extends and tightens the tunnel. The rear lateral support cylinder retracts, the main beam's telescopic sleeve extends, and the rear lateral support cylinder extends to tighten the tunnel. The top support cylinder retracts, the main beam's telescopic sleeve retracts, the propulsion device and the tunneling device move toward the main tunnel, a splitting rod is installed to split the rock at the face, the winch drags the rocks to the main tunnel for slag discharge, and the material crane transfers the slag.

[0017] Assembly: The ship-shaped plate transports the segments to the bottom of the segment crane, the segment crane lifts the segments to the segment assembling machine, the movable shield moves to the second end of the main beam, and the segments are transported to the main tunnel of the connecting channel. The material crane lifts the segments onto the ship-shaped plate, and the winch drives the ship-shaped plate to move to the segment assembling machine, and the segment assembling machine assembles the segments;

[0018] Step forward, the front lateral support cylinder holds the rock wall tightly, the radial cylinder of the propulsion unit extends, and the propulsion unit's support shoe is aligned with the end face of the pipe segment.

[0019] The oil cylinders of the front support, top support and rear lateral support retract, the oil cylinder of the propulsion element pushes the pipe segment, and the excavator moves forward to the tunnel face to start excavation;

[0020] Move backward, the front lateral support cylinder extends to hold the rock wall, the radial moving device moves the water-grinding drill to the inner diameter of the segment, the front support, top support and rear lateral support cylinders retract, the propulsion cylinder retracts, the winch drags the tunneling device and the propulsion device to move, the front support cylinder extends, the front lateral holding cylinder retracts and moves toward the second end of the main beam, the front support cylinder and the front lateral support cylinder alternately extend and retract to drive the tunneling device and the propulsion device to move.

[0021] In some embodiments, the construction method of the integrated excavation and splicing connecting channel further includes a grouting step, wherein the excavation device and the propulsion device fill the gap between the rear end segment and the tunnel rock wall with pea gravel and mortar after completing a step. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a digging and splicing integrated communication channel construction system according to an embodiment of the present invention.

[0023] Figure 2is a cross-sectional view of A-A of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0024] Figure 3 is a cross-sectional view of B-B of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0025] Figure 4 is a cross-sectional view of C-C of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0026] Figure 5 is a structural view of embodiment 2 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0027] Figure 6 is a cross-sectional view of A-A of embodiment 2 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0028] Figure 7 is a cross-sectional view of B-B of embodiment 2 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0029] Figure 8 is a cross-sectional view of C-C of embodiment 2 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0030] Figure 9 is a structural view of embodiment 3 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0031] Figure 10 is a cross-sectional view of A-A of embodiment 3 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0032] Figure 11 is a cross-sectional view of B-B of embodiment 3 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0033] Figure 12 is a cross-sectional view of C-C of embodiment 3 of the excavation and splicing integrated connecting passage construction system according to an embodiment of the present application.

[0034] Reference signs: 1, water mill drill; 2, central rotary drive; 3, front support; 4, pushing piece; 5, segment splicing machine; 6, segment hoist; 7, rear support; 8, boat-shaped plate; 9, front shielding; 10, front lateral support; 11, slide; 12, moving shielding; 13, top support; 14, rear lateral support; 15, radial moving device; 16, hoist; 17, material hoist; 18, counterforce rod; 19, telescopic sleeve; 20, block shell; 21, hinged seat; 22, main beam. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described in detail below with reference to the attached drawing figures, wherein the examples of the embodiments are shown. The embodiments described below are exemplary and intended to be illustrative of the present application, but not limiting thereof.

[0036] The tunneling and assembling integrated connecting passage construction system according to the embodiments of the present application, the tunneling and assembling integrated connecting passage construction system comprises a tunneling device, a pushing device and a material conveying device, the tunneling device comprises water drills 1 and a central rotary drive 2, a plurality of water drills 1 are arranged on a first support, the central rotary drive 2 is connected with the support transmission, the pushing device comprises a pushing piece 4, a support frame, a top support 13, a top shielding and a lateral support, the lateral support is arranged on a main beam, a slide 11 is arranged on the top of the main beam, a first end of the main beam is connected with the central rotary drive 2, the pushing piece 4 is arranged on the support frame to push the segment, the top shielding is arranged on the main beam to support the tunnel, the top support 13 is arranged on one side of the main beam adjacent to a second end, the material conveying device comprises a segment assembling machine 5, a material crane 17, a winch 16 and a boat-shaped plate 8, the segment assembling machine 5 is slidably connected with the slide 11, the material crane 17 is adjacent to a main tunnel of the tunnel, the winch 16 is arranged on a support of the main tunnel and connected with the transmission of the boat-shaped plate 8, the boat-shaped plate 8 is arranged between the main beam and the material crane 17.

[0037] The first end of the main beam is close to the face end, and the second end is close to the main tunnel end. The water drill 1 can quickly and stably drill holes in the rock or soil layer through the cooperation of water flow and drill bit. In the system, a plurality of water drills 1 are arranged on the first support, and the drilling position and angle can be flexibly adjusted according to the cross-sectional shape and size requirements of the connecting passage, so as to realize omnidirectional drilling operation on the face.

[0038] The central rotary drive 2 is connected with the transmission of the first support, and can drive the first support and the water drills 1 thereon to rotate around the central axis. The rotation of the first support driven by the central rotary drive 2 moves the water drills 1 relative to the circumferential direction of the tunnel, so that the water drills 1 can cover a larger tunneling area, reduce the frequent movement and adjustment of the equipment, and improve the tunneling efficiency.

[0039] The support frame provides support and guidance for the pushing piece 4, the pushing piece 4 is arranged on the support frame, and the pushing piece 4 can push the segment to provide a pushing force for segment assembly through the extension and retraction of the oil cylinder. The oil cylinder of the pushing piece 4 interacts with the segment to move the tunneling device and the pushing device relative to the segment. It can be understood that the pushing piece comprises at least two oil cylinders, the directions of the two oil cylinders are opposite, and they are respectively used to move in the direction of the face and the direction of the main tunnel.

[0040] The top support 13 is used to support the rock-soil mass at the top of the tunnel to prevent it from collapsing. The top shield is arranged on the main beam to protect the top of the tunnel and prevent falling rocks or other debris from causing harm to the construction personnel and equipment. The lateral support is arranged on the main beam to support the rock-soil mass of the side wall of the tunnel and ensure the stability of the side wall of the tunnel.

[0041] The pipe splicing machine 5 can be moved along the slide 11 of the main beam to adjust the position flexibly and facilitate pipe splicing operations. The material hoist 17 is adjacent to the main tunnel of the tunnel and is used to hoist the pipes, materials, and the like from the main tunnel to the construction area. It can realize a wide range of hoisting operations and improve the efficiency of material transportation.

[0042] The winch 16 is arranged on the support of the main tunnel and is connected in transmission with the boat-shaped plate 8. The boat-shaped plate 8 is arranged between the main beam and the material hoist 17 and is used to carry and transport materials. The winch 16 moves the boat-shaped plate 8 under the main beam through the steel wire rope to transport materials from the main tunnel to the construction area, realizing continuous transportation of materials. The boat-shaped plate 8 can move flexibly under the main beam to transport materials to the desired position, cooperating with the winch 16 to realize efficient transportation of materials.

[0043] The equipment can not only excavate the rock stratum but also splice the pipes at the rear end of the surrounding rock to complete the final forming of the tunnel. It saves the construction period and cost. The system integrates the excavation and pipe splicing functions, reducing the conversion time between construction processes. While the excavation device performs excavation operations at the front, the material conveying device can transport pipes and other materials to the splicing area in a timely manner, and the pipe splicing machine 5 can splice the pipes immediately, realizing the coordinated operation of excavation, splicing, and material transportation, and greatly improving the construction efficiency. The propulsion device can timely push the spliced pipes into place, and the material conveying device can quickly and accurately transport materials to the designated position, closely linking each link to avoid waiting and stagnation during construction, further improving the construction efficiency. The top support 13 and the top shield can effectively support the rock-soil mass at the top of the tunnel and provide a safe construction environment.

[0044] In some embodiments, the lateral support includes a front lateral support 10 and a rear lateral support 14, which are respectively connected to the first end and the second end of the main beam.

[0045] Specifically, dividing the lateral support into the front lateral support 10 and the rear lateral support 14 can more evenly support and adapt to the shape of the tunnel. The front lateral support 10 is arranged at the first end of the main beam, i.e., near the face side. During excavation, the front lateral support 10 is mainly used to support the rock-soil mass of the side wall of the tunnel to prevent the side wall from collapsing, while providing stable lateral support for the excavation device to ensure smooth excavation. The support rock wall can stabilize the front end of the equipment and adjust the distance between the front end of the equipment and the two sides of the tunnel to provide anti-torque.

[0046] The rear lateral support 14 is connected to the second end of the main beam, near the main tunnel end. It primarily supports the tunnel sidewalls and segments in the constructed area, ensuring the stability of the assembled segments. It also provides stable lateral support for the propulsion device, preventing lateral displacement during construction. The rear lateral support 14 adjusts the distance between the rear end of the device and the sides of the tunnel, providing torsional resistance. Both the front lateral support 10 and the rear lateral support 14 include a telescopic cylinder.

[0047] In some embodiments, the top shield includes a front shield 9 and a movable shield 12 , wherein the front shield 9 is arranged at the first end of the main beam, and the movable shield 12 is movably connected to the main beam.

[0048] Specifically, the front shield 9 is arranged at the first end of the main beam (close to the face end). Its main function is to prevent the top debris generated during the excavation process from causing harm to construction personnel and equipment. It also serves as a temporary top support, providing a relatively stable top environment for excavation operations and preventing the collapse of the rock and soil at the top of the tunnel.

[0049] The mobile shield 12 can be moved forward and backward by means of a hydraulic cylinder. This mobility enables it to flexibly adjust the shielding range according to the construction progress and the position of the tunnel face. The mobile shield 12 is mainly used to shield the top debris during the excavation process, further enhancing the safety of the construction process. The mobile shield 12 can change its position to provide timely support to the top of the tunnel. The mobility of the mobile shield 12 eliminates the need for frequent replacement of shielding equipment during construction, reducing the time for equipment adjustment and installation. Construction personnel can quickly adjust the shielding position according to the excavation progress, improving the continuity of the construction process.

[0050] The combination of front shield 9 and mobile shield 12 provides dual protection for construction personnel and equipment. Front shield 9, positioned close to the tunnel face, effectively shields debris generated during excavation. Mobile shield 12 can be adjusted as needed to further expand the shielding range, ensuring safety in the construction area and reducing interruptions caused by debris from the top.

[0051] In some embodiments, the tunneling device also includes a radial moving device 15, which is connected to the water drill 1 to drive the water drill 1 to move along the radial direction of the tunnel. The radial moving device 15 includes a rack and a drive motor. The drive motor is engaged with the rack through a gear, and the two drive motors are arranged at both ends of the rack.

[0052] Specifically, the radial movement device 15 is connected to the water-mill drill 1 and is used to drive the water-mill drill 1 in the radial direction of the tunnel. This movement function allows the water-mill drill 1 to adjust the drilling position according to the excavation requirements, better adapting to the geometry and construction requirements of the tunnel. When the radial position of the water-mill drill 1 needs to be adjusted, the drive motor drives the rack via the gear, driving the water-mill drill 1 to the specified position in the radial direction of the tunnel. This allows the water-mill drill 1 to flexibly adjust the drilling position during the excavation process, improving excavation flexibility and efficiency.

[0053] Under complex geological conditions, the rock and soil of a tunnel may exhibit inhomogeneities or localized weak areas. The radial movement device 15 enables the water drill 1 to flexibly adjust the drilling position according to changing geological conditions, avoiding excavation difficulties or equipment damage caused by improper drilling position. The two drive motors are symmetrically positioned at either end of the rack, ensuring smooth movement of the water drill 1. The coordination of the rack and gear enables precise adjustment of the drilling position.

[0054] In some embodiments, a front support 3 and a rear support 7 are provided on the propulsion device, and the front support 3 and the rear support 7 are arranged on the main beam to support the first end and the second end of the main beam respectively.

[0055] Specifically, the front support 3 is located at the first end of the main beam (near the tunnel face). It primarily supports the front end of the equipment and uses a hydraulic cylinder to adjust the equipment's height, ensuring a stable posture during tunneling. This hydraulic cylinder adjusts the equipment's height, ensuring the stability of the tunneling device and the front end of the main beam, preventing tilting due to changing geological conditions or the equipment's own weight.

[0056] The rear support 7 is located at the second end of the main beam (near the main tunnel end) and primarily supports the rear end of the equipment. This not only provides stable support but also assists in moving the equipment, ensuring smooth movement during construction. This support is achieved through the coordination of a cylinder and rollers. The cylinder supports the second end of the main beam, while the rollers slide against the segments to assist movement and facilitate the propulsion device's movement.

[0057] The synergistic effect of the front support 3 and rear support 7 effectively prevents the equipment from tilting or overturning during excavation. The front support 3 ensures the stability of the front end of the equipment by adjusting the equipment's height via a hydraulic cylinder, while the rear support 7 provides stable support for the rear end, enhancing the equipment's safety and enabling it to flexibly adjust its posture according to changing construction conditions.

[0058] In some embodiments, the material conveying device further includes a segment crane 6 , which is arranged on the main beam to convey segments to the segment assembly machine 5 .

[0059] Specifically, the main function of the segment crane 6 is to hoist the segments from the barge deck 8 to the segment erector 5 to provide the segments for the segment erector 5, and the segment crane 6 can also assist the mucking operation. The muck generated in the tunneling process can be hoisted to the barge deck 8 by the segment crane 6 for subsequent muck cleaning work.

[0060] The segment crane 6 hoists the segments from the storage area by the hooks or grabbing devices, moves along the main girder to the vicinity of the segment erector 5, and then places the segments in the erector position. The segment crane 6 can quickly and accurately hoist the segments from the storage area to the vicinity of the segment erector 5, reducing the time and workload of segment transportation and improving the efficiency of segment erection. The segment crane 6 assists mucking to clean the muck generated in the tunneling process in time, avoiding the accumulation of muck affecting the construction progress. The integrated hoisting mode can optimize the construction process and improve the construction continuity.

[0061] In some embodiments, the tunneling device further comprises a counterforce rod 18 arranged on the first support.

[0062] Specifically, one end of the counterforce rod is fixedly connected or abuts against the tunnel face, and the other end of the counterforce rod abuts against the advancing member to provide a counterforce for the advancing member. The counterforce rod 18 is arranged on the first support and integrated with the water jet drill 1 and the central rotary drive 2. When the segment erector 5 advances the segments into position, the counterforce rod 18 can provide stable counterforce support for the erector, ensuring that the segments can be accurately and stably erected into position, ensuring that the segment erector 5 can remain stable when advancing the segments, preventing equipment displacement or vibration due to reaction force, reducing erection errors caused by equipment vibration or displacement during segment erection, and further improving the construction quality of the connecting passage. Thus, the stable support of the counterforce rod 18 can reduce the equipment adjustment time of the segment erector 5 during erection due to vibration or displacement, improving the erection efficiency.

[0063] In addition, during tunneling, the water jet drill 1 applies a forward drilling force to the rock-soil mass, and the counterforce rod 18 provides a stable counterforce support point for the tunneling device to balance the drilling force, preventing the tunneling device from displacing or vibrating due to reaction force, enhancing the stability of the entire tunneling device, and ensuring smooth tunneling.

[0064] In some embodiments, the advancing device further comprises a main girder telescopic sleeve 19 arranged on the main girder and connected to the segment erector 5 to move the segment erector 5 along the main girder.

[0065] Specifically, the main beam telescopic sleeve 19 can drive the segment assembling machine 5 to move along the main beam, realizing the forward and backward movement function of the segment assembling machine 5. The main beam telescopic sleeve 19 includes a first section and a second section. The first section is connected to the main beam, and the second section is connected to the segment assembling machine 5. The first section partially enters the second end. During the segment assembly process, the main beam telescopic sleeve 19 can push the segment assembling machine 5 to the assembly position.

[0066] After assembly is complete, the main beam telescopic sleeve 19 pulls the segment assembler 5 back to its initial position, preparing for the next assembly operation. The main beam telescopic sleeve 19 drives the segment assembler 5 to move along the main beam, accurately positioning the segment assembler 5 to the assembly position, ensuring that the segments are accurately assembled, reducing assembly errors caused by inaccurate positioning, and allowing the movement and assembly operations of the segment assembler 5 to be integrated, reducing the coordination workload between equipment and improving the consistency of the construction process.

[0067] Example 1, as Figures 1 to 4 As shown, the excavation device includes a water-grinding drill 1, a radial moving device 15 and a central rotary drive 2. Multiple water-grinding drills 1 are arranged on a first bracket. The central rotary drive 2 drives the first bracket to rotate. The rear support 7 can walk on the pipe segment. The front shield 9 is arranged at the first end of the main beam. The top support 13 is arranged at the second end of the main beam to support the pipe segment. The movable shield 12 moves between the front shield 9 and the top support 13. The movable shield 12 is slidably connected to the main beam.

[0068] In Example 2, the excavation device includes a water-grinding drill 1, a radial movement device 15, and a central rotary drive 2. Multiple water-grinding drills 1 are arranged on a first bracket. The central rotary drive 2 drives the first bracket to rotate. A reaction rod 18 is arranged on the first bracket to provide reaction force. The top support 13 is arranged on the main beam to support the main beam from the first end to the upper part of the second end. The front support 3 and rear support 7 are arranged symmetrically, and both the front support 3 and rear support 7 are supported by hydraulic cylinders. The distance between the main beams is shortened, eliminating the need for a segment crane 6. The ship-shaped plate 8 directly transports the segments to the bottom of the segment assembly machine 5.

[0069] In the embodiment 3, the tunneling device comprises water mills 1, a radial movement device 15 and a central rotary drive 2, a plurality of water mills 1 are arranged on a first support, the central rotary drive 2 drives the first support to rotate, a counter-force rod 18 is arranged on the first support to provide a counter-force, a front lateral support 10 is arranged on the main beam and can move along the main beam, and further comprises a segmented shell 20, the segmented shell 20 abuts against the side wall of the tunnel at the top side of the main beam, the segmented shell 20 is connected with a set of telescopic oil cylinders through a hinge seat 21, the set of telescopic oil cylinders are connected with the main beam, the segmented shell 20 is tightly pressed against the rock wall of the tunnel under the action of the telescopic oil cylinders during tunneling, the segmented shell 20 is retracted under the action of the telescopic oil cylinders during slagging, and the segmented shell 20 is tightly pressed against the rock wall of the tunnel under the action of the telescopic oil cylinders during assembly. The segmented shell 20 plays the role of the top support 13, and the support position of the segmented shell 20 on the rock wall of the tunnel is more flexible.

[0070] According to the tunneling and assembling integrated connecting passage construction method, the tunneling and assembling integrated connecting passage construction method comprises the following steps:

[0071] Tunneling, the oil cylinder of the front lateral support 10 of the advancing device is extended to tightly press the side wall of the tunnel, the oil cylinders of the top support 13 and the rear lateral support 14 are extended to tightly press the segments in the tunnel; the front support 3 and the rear support 7 adjust the structural height of the main beam, the front lateral support 10 and the rear lateral support 14 tightly press the tunnel and adjust the distance between the main beam and the side wall of the tunnel; the front lateral support 10 and the rear lateral support 14 tightly press the side wall of the tunnel to provide stable lateral support for the advancing device, preventing the equipment from being laterally displaced, and the top support 13 is used to support the top of the tunnel to prevent the top of the tunnel from collapsing. The coordinated action of the front lateral support 10, the rear lateral support 14, the top support 13, the front support 3 and the rear support 7 provides omnidirectional stable support for the tunneling and advancing device, reducing the safety risks caused by changes in geological conditions. The oil cylinders of the support components can quickly adjust the support force and the attitude of the equipment, reducing the time required for equipment adjustment and improving the construction efficiency.

[0072] The central rotary drive 2 and the radial movement device 15 respectively adjust the circumferential position and the radial position of the support and the water mill 1, and the water mill 1 is drilled in the radial direction; through the central rotary drive 2, the first support can rotate around the central axis, so that the water mill 1 arranged on the support rotates relative to the tunnel in the circumferential direction, and through the cooperation of the rack and the driving motor, the radial movement device 15 drives the water mill 1 to move in the radial direction of the tunnel, flexibly adjusting the circumferential and radial positions of the drilling hole in the tunneling process, and realizing omnidirectional drilling operation. Such flexibility can better adapt to the complex cross-sectional shape and size requirements of the connecting passage, improving the flexibility of tunneling. The rapid adjustment capability of the central rotary drive 2 and the radial movement device 15 enables the water mill 1 to quickly adjust the drilling position during tunneling, reduces the adjustment time, and improves the tunneling efficiency.

[0073] Deslagging, the oil cylinder of the front lateral support 10 is retracted and moves to the second end of the main beam, and then extends and supports the tunnel, the oil cylinder of the rear lateral support 14 is retracted, the telescopic sleeve 19 of the main beam is extended, the oil cylinder of the rear lateral support 14 is extended to support the tunnel, the oil cylinder of the top support 13 is retracted, the telescopic sleeve 19 of the main beam is retracted, the propulsion device and the tunneling device move to the main tunnel direction of the tunnel, the splitting rod is installed to split the rock of the working face, the winch 16 drags the rock to the main tunnel for deslagging, and the material hoist 17 transports the deslagging;

[0074] The oil cylinder of the front lateral support 10 is retracted and moves along the main beam by a distance, and then extends and supports the tunnel again, provides space for the movement of the main beam, and provides power for the subsequent lateral support of the main beam. The oil cylinder of the rear lateral support 14 is retracted, the telescopic sleeve 19 of the main beam is extended to move the main beam to the main tunnel direction under the cooperation of the front lateral support 10, the oil cylinder of the rear lateral support 14 is retracted, the oil cylinder of the top support 13 is retracted, and the telescopic sleeve 19 of the main beam is retracted to move the propulsion device and the tunneling device to the main tunnel direction, and the whole device retreats to leave a space of 800 mm for the installation of the splitting rod. The splitting rod splits the rock of the working face, and the rock is split into smaller rock blocks, which is convenient for subsequent deslagging operation. The winch 16 is used to drag the split rock to the main tunnel direction and into the deslagging channel of the main tunnel. The material hoist 17 hoists the rock in the main tunnel to the designated deslagging storage area or transport vehicle, and completes the final transportation of the deslagging.

[0075] Assembling, the pipe piece is transported to the pipe piece hoist 6 by the transport trolley, the pipe piece is hoisted to the pipe piece assembling machine 5 by the pipe piece hoist 6, the movable shield 12 moves to the second end of the main beam, the pipe piece is transported to the main tunnel of the communication passage, the pipe piece is hoisted to the boat-shaped plate 8 by the material hoist 17, the boat-shaped plate 8 is moved to the pipe piece assembling machine 5 by the winch 16, and the pipe piece is assembled by the pipe piece assembling machine 5.

[0076] The oil cylinder of the rear lateral support 14 is retracted, the oil cylinder of the top support 13 is retracted, the pushing piece 4 pushes the segment, the pushing device moves to the direction of the working face to leave the segment assembling distance, the front lateral support 10 moves to the first end of the main beam, the front lateral support 10, the rear lateral support 14, the front support 3 and the rear support 7 adjust the horizontal height of the equipment and the distance from the sidewall of the tunnel, the oil cylinder of the rear lateral support 14 is retracted, the oil cylinder of the top support 13 is extended, the telescopic sleeve 19 of the main beam drives the segment erector 5 to move, the segment erector 5 grabs the segment, and the segment adjustment bolt is used for correcting the roundness of the previous ring segment. The movable shield 12 moves to the second end (close to the end of the main tunnel) of the main beam to provide sufficient support for the segment transportation and assembly. The material hoist 17 hoists the segment to the barge board 8, and the barge board 8 serves as a temporary storage and transportation platform. The winch 16 drives the barge board 8 to move along the main beam through the steel wire rope, and the segment is transported to the vicinity of the segment erector 5. The segment adjustment bolt is used for correcting the roundness of the previous ring segment, so that the roundness of the segment ring and the assembly accuracy can be ensured.

[0077] Stepping, the oil cylinder of the front lateral support 10 is braced against the rock wall, the radial oil cylinder of the pushing piece 4 is extended, the bracing shoe of the pushing piece 4 is aligned with the end face of the segment,

[0078] The oil cylinders of the front support 3, the top support 13 and the rear lateral support 14 are retracted, the oil cylinder of the pushing piece 4 pushes the segment, and the tunneling device moves forward to the working face to perform tunneling.

[0079] Retreating, the oil cylinder of the front lateral support 10 is extended to brace against the rock wall, the radial moving device 15 moves the water jet drill 1 to the inner diameter of the segment, the oil cylinders of the front support 3, the top support 13 and the rear lateral support 14 are retracted, the oil cylinder of the pushing piece 4 is retracted, the winch 16 drags the tunneling device and the pushing device to move, the oil cylinder of the front support 3 is extended, the front lateral bracing oil cylinder is retracted and moves to the direction of the second end of the main beam, and the oil cylinders of the front support 3 and the front lateral support 10 are alternately extended and retracted to drive the tunneling device and the pushing device to move.

[0080] In some embodiments, the tunneling and segmenting integrated connecting passage construction method further comprises a grouting step, and the tunneling device and the pushing device fill the gap between the rear end segment and the tunnel rock wall with pea gravel and mortar after completing one step.

[0081] Specifically, after the tunneling device and the pushing device complete a step, that is, after the tunneling and segment assembly of a section of the connecting passage are completed, the grouting operation is performed. The pea gravel is a kind of small-sized gravel, which is usually used to fill larger gaps and play a role of preliminary support and filling. The mortar is used to fill smaller gaps and play a role of sealing and reinforcement. The strength and fluidity of the mortar can be adjusted according to actual construction requirements. The grouting pressure needs to be adjusted according to the geological conditions and the tunnel structure to avoid the deformation of the segment or the rupture of the rock wall due to excessive pressure. The grouting can effectively fill the gaps between the segment and the tunnel rock wall, reduce the structural instability factors caused by the gaps, enhance the overall stability of the connecting passage, in addition, can prevent underground water from seeping into the connecting passage to reduce the risk of leakage and prolong the service life of the connecting passage.

[0082] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0083] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0084] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected or can communicate with each other; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication or interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0085] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly in contact with the second feature, or indirectly in contact with the second feature through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0086] In the present application, the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that a particular feature, structure, material or characteristic is included in at least one embodiment or example of the present application. Exemplary representations of the above terms in the present specification are not necessarily directed to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any suitable manner in one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0087] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A digging and splicing integrated communication channel construction system, characterized in that: include: A tunneling device, comprising a water-grinding drill and a central rotary drive, wherein a plurality of the water-grinding drills are arranged on a first bracket, and the central rotary drive is transmission-connected to the first bracket; a propulsion device, the propulsion device comprising a propulsion member, a support frame, a top support, a top shield, and a lateral support, the lateral support being arranged on the main beam, a slide being provided on the top of the main beam, the first end of the main beam being connected to the central rotary drive, the propulsion member being arranged on the support frame to push the segments, the top shield being arranged on the main beam to support the tunnel, and the top support being arranged on a side of the main beam adjacent to the second end; A material conveying device, comprising a segment assembler, a material crane, a winch, and a ship-shaped plate. The segment assembler is slidably connected to the slideway, the material crane is adjacent to the main tunnel of the tunnel, the winch is arranged on the bracket of the main tunnel and is transmission-connected to the ship-shaped plate, and the ship-shaped plate is arranged between the main beam and the material crane.

2. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: The lateral support includes a front lateral support and a rear lateral support, and the front lateral support and the rear lateral support are respectively connected to the first end and the second end of the main beam.

3. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: The top shield includes a front shield and a movable shield, the front shield is arranged at the first end of the main beam, and the movable shield is movably connected to the main beam.

4. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: It also includes a radial moving device, which is connected to the water drill to drive the water drill to move along the radial direction of the tunnel. The radial moving device includes a rack and a drive motor. The drive motor is engaged with the rack through a gear, and the two drive motors are arranged at both ends of the rack.

5. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: A front support and a rear support are provided on the propulsion device, and the front support and the rear support are arranged on the main beam to respectively support the first end and the second end of the main beam.

6. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: It also includes a segment crane, which is arranged on the main beam and is used to transport segments to the segment assembly machine.

7. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: The excavation device further includes a reaction rod, which is arranged on the first bracket.

8. The excavation and splicing integrated communication channel construction system according to claim 1 is characterized in that: It also includes a main beam telescopic sleeve, which is arranged on the main beam and connected to the segment assembling machine to drive the segment assembling machine to move along the main beam.

9. A method for constructing a digging and splicing integrated communication channel, using the digging and splicing integrated communication channel construction system according to claims 1-8, characterized in that: The following steps are involved: During tunneling, the cylinders of the front lateral supports of the propulsion device extend to tighten the tunnel sidewalls, while the cylinders of the top support and rear lateral supports extend to tighten the tunnel segments; the front and rear supports level the structural height of the main beam, while the front and rear lateral supports tighten the tunnel and adjust the distance between the main beam and the tunnel sidewalls; The central rotary drive and radial movement device respectively adjust the circumferential position of the bracket and the water grinding drill and the radial rear water grinding drill to drill holes; To discharge slag, the front lateral support cylinder retracts and moves toward the second end of the main beam, then extends and tightens the tunnel. The rear lateral support cylinder retracts, the main beam's telescopic sleeve extends, and the rear lateral support cylinder extends to tighten the tunnel. The top support cylinder retracts, the main beam's telescopic sleeve retracts, the propulsion device and the tunneling device move toward the main tunnel, a splitting rod is installed to split the rock at the face, the winch drags the rocks to the main tunnel for slag discharge, and the material crane transfers the slag. Assembly: The ship-shaped plate transports the segments to the bottom of the segment crane, the segment crane lifts the segments to the segment assembling machine, the movable shield moves to the second end of the main beam, and the segments are transported to the main tunnel of the connecting channel. The material crane lifts the segments onto the ship-shaped plate, and the winch drives the ship-shaped plate to move to the segment assembling machine, and the segment assembling machine assembles the segments; Step forward, the front lateral support cylinder holds the rock wall tightly, the radial cylinder of the propulsion unit extends, and the propulsion unit's support shoe is aligned with the end face of the pipe segment. The oil cylinders of the front support, top support and rear lateral support retract, the oil cylinder of the propulsion element pushes the pipe segment, and the excavator moves forward to the tunnel face to start excavation; Move backward, the front lateral support cylinder extends to hold the rock wall, the radial moving device moves the water-grinding drill to the inner diameter of the segment, the front support, top support and rear lateral support cylinders retract, the propulsion cylinder retracts, the winch drags the tunneling device and the propulsion device to move, the front support cylinder extends, the front lateral holding cylinder retracts and moves toward the second end of the main beam, the front support cylinder and the front lateral support cylinder alternately extend and retract to drive the tunneling device and the propulsion device to move.

10. The construction method of the excavation-and-jointing integrated communication channel according to claim 9, characterized in that: The method further includes a grouting step, wherein the tunneling device and the propulsion device complete a step, and fill the gap between the rear end segment and the tunnel rock wall with pea gravel and mortar.

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