An installation device and installation method for the middle partition wall in a large-diameter tunnel

Abstract

The present invention provides a large-diameter tunnel middle partition wall installation device and an installation method, which solve the difficult problems in the installation of precast middle partition walls in tunnels, achieve high installation accuracy, safe and efficient construction, and do not occupy too much tunnel space, facilitating synchronous construction. It includes a main frame assembly, a flipping frame platform assembly, a gripping head, a gripping turntable, and a gantry crane; the main frame assembly includes a vehicle roof, a left bottom beam, a middle bottom beam, and a right bottom beam, the left bottom beam, the middle bottom beam, and the right bottom beam are distributed in the front-rear direction, the flipping frame platform assembly is installed between the left bottom beam and the middle bottom beam and can move up and down, the gripping head is installed at the bottom of the flipping frame platform assembly and can move back and forth and left and right, the gripping turntable is installed at the right end of the gripping head, the gripping turntable is distributed along the vertical plane in the front-rear direction, and the gripping turntable can swing back and forth, swing up and down, and rotate within the vertical plane in the front-rear direction.

Description

Technical Field

[0001] The present invention relates to tunnel construction equipment, especially the installation construction of the middle partition wall suitable for large-diameter tunnels. Specifically, it relates to an installation device and an installation method for the middle partition wall of a large-diameter tunnel, belonging to tunnel construction equipment. Background Art

[0002] With the construction and development of society, more and more underground tunnel projects have been put into construction. Large-diameter tunnel boring machines are more and more widely used, and the structural combination forms of tunnels are also more and more. The single-hole double-track tunnel form is a current mainstream tunnel structure. However, in the relatively narrow space of the tunnel, casting in situ or installing precast middle partition walls is a difficult construction problem. As a structure that physically separates the left and right tunnel spaces, the middle partition wall of the tunnel is an important part of the tunnel structure. Its installation efficiency affects the overall construction progress of the tunnel, and the installation quality is also an important guarantee for the safety of the tunnel.

[0003] At present, in actual construction projects, the method of erecting formwork and casting the middle partition wall in situ has been less used due to problems such as slow construction speed, low quality, and excessive occupation of tunnel space. Therefore, at present, equipment is mostly used in the tunnel to install precast middle partition walls. The precast middle partition wall generally adopts a concrete structure, and the precast middle partition wall is connected by the way of implanting steel bars. The structure of reinforced concrete makes the middle partition wall have a large weight, and the weight varies according to different sizes, usually reaching several tons. And the height of the precast middle partition wall is usually large, and the distance from the top of the erected middle partition wall to the top of the tunnel is generally small. How to install the precast middle partition wall in the tunnel reliably, safely and efficiently has become an actual problem commonly faced and urgently to be solved in the current tunnel construction process. Summary of the Invention

[0004] To solve the difficult problems in the installation of the precast middle partition wall in the tunnel, to achieve high installation accuracy, safe and efficient construction, and not to occupy too much tunnel space and facilitate synchronous construction, the present invention provides an installation device and an installation method for the middle partition wall of a large-diameter tunnel.

[0005] The present invention is realized through the following technical solutions:

[0006] An installation device for the middle partition wall of a large-diameter tunnel includes a main frame assembly, a flipping frame platform assembly, a gripping head, a gripping turntable and a gantry crane;

[0007] The main frame assembly includes a vehicle roof, a left bottom beam, a middle bottom beam and a right bottom beam. The left bottom beam, the middle bottom beam and the right bottom beam are distributed in the front-back direction. The left bottom beam, the middle bottom beam and the right bottom beam are respectively connected to the bottom surface of the vehicle roof through a plurality of vertical beams;

[0008] The flipping gantry assembly is installed between the left bottom beam and the middle bottom beam and can move up and down. The gripping head is installed at the bottom of the flipping gantry assembly and can move forward and backward and left and right. The gripping turntable is installed at the right end of the gripping head. The gripping turntables are distributed along the vertical plane in the front-back direction. The gripping turntable can swing forward and backward, swing up and down, and rotate within the vertical plane in the front-back direction;

[0009] The gantry crane is installed at the tail of the vehicle roof.

[0010] Furthermore, a plurality of gripping turntable oil cylinders are installed on the gripping turntable; the top end of the piston rod of the gripping turntable oil cylinder is processed with anti-slip threads.

[0011] Furthermore, the gripping head includes a gripping head horizontal rotation motor, a gripping head up-and-down rotation motor, a gripping turntable rotation motor, a gripping head base, and a gripping head connection plate. The gripping head base is fixed to the bottom of the flipping gantry assembly. A gripping head horizontal gear is rotatably installed on the gripping head base through a rotating shaft. The gripping head horizontal rotation motor is meshed and driven with the gripping head horizontal gear through a gear. The lower end of the rotating shaft corresponding to the gripping head horizontal gear is fixedly connected to the gripping head connection plate;

[0012] Two rotatable gripping head vertical gears are symmetrically installed front and back at the bottom of the gripping head connection plate through brackets. A gripping rod with a vertical axis is fixedly installed between the two gripping head vertical gears. Two gripping head up-and-down rotation motors are installed below the gripping head; the two gripping head up-and-down rotation motors are meshed with the two gripping head vertical gears through gears to realize the up-and-down rotation of the gripping turntable; the number of the gripping head up-and-down rotation motors is two and they are installed at the bottom of the gripping head connection plate. The gripping head up-and-down rotation motors are meshed with the gripping head vertical gears through gears;

[0013] The front end of the gripping rod is rotatably installed with a gripping turntable gear. The gripping turntable is fixed to the outside of the gripping turntable gear. The gripping turntable rotation motor is fixed to the front end of the gripping rod and is meshed with the gripping turntable gear through a gear.

[0014] Furthermore, the flipping gantry assembly is slidably connected to the vertical beams corresponding to the left bottom beam and the middle bottom beam. Synchronous racks are provided on the vertical beams. A flipping gantry up-and-down motor is provided on the flipping gantry assembly. The flipping gantry up-and-down motor is meshed with the synchronous rack of the corresponding vertical beam through a gear;

[0015] The flipping gantry assembly includes two gantry crossbeams distributed parallel to each other left and right. Two intermediate gantry crossbeams distributed parallel to each other front and back are slidably connected to the two gantry crossbeams. Synchronous racks are installed on the opposite surfaces of the two gantry crossbeams. A grabbing head horizontal movement motor is installed on the intermediate gantry crossbeam. The grabbing head horizontal movement motor meshes with the synchronous rack through a gear to realize the front and back movement of the intermediate gantry crossbeam;

[0016] Fixed to the bottom of each of the two intermediate gantry crossbeams are a grabbing head oil cylinder and a guide rod. The movable rod of the grabbing head oil cylinder is fixedly connected to the grabbing head. The grabbing head is slidably connected to the guide rod through a slider.

[0017] Further, it further includes a green light 3D level, a red light 3D level and a gantry crane laser level. The green light 3D level is installed on the grabbing turntable. The red light 3D level is installed on the vehicle roof. The gantry crane laser level is installed on the gantry crane.

[0018] Further, a plurality of sliding rollers are installed at the bottom of the left bottom beam, the middle bottom beam and the right bottom beam. The sliding rollers of the left bottom beam and the right bottom beam are both driven by the main frame traveling motor; A plurality of bottom beam oil cylinders are also installed at the bottom of the left bottom beam and the right bottom beam.

[0019] Further, a vehicle roof gantry and two vehicle roof oil cylinders are installed on the vehicle roof; An electric hoist is installed on the vehicle roof gantry; An electromagnetic chuck is installed on the piston rod of the vehicle roof oil cylinder.

[0020] A method for installing the middle partition wall in a large-diameter tunnel uses the large-diameter tunnel middle partition wall installation equipment of the present invention to install the precast middle partition wall, including the following steps:

[0021] (1) The double-headed vehicle transports the precast middle partition wall to a suitable position. The gantry crane unloads the precast middle partition wall and hoists it to the tunnel center line position;

[0022] (2) The entire installation equipment moves to the grabbing station through the main frame assembly. The flipping gantry assembly descends to a predetermined height. After the grabbing head is horizontally moved and adjusted to a suitable position, the grabbing turntable is extended to fix the precast middle partition wall on the grabbing turntable;

[0023] (3) The flipping gantry assembly lifts the precast middle partition wall to a predetermined height;

[0024] (4) The grabbing turntable rotates the precast middle partition wall by 90°;

[0025] (5) Before the entire installation equipment moves to the designated predetermined installation position, the red light 3D level is used to ensure the position accuracy, so that the installation equipment moves to the predetermined installation position;

[0026] (6) Use the flipping gantry, the grasping head, and the grasping turntable to rotate and finely adjust the precast middle partition wall along the X, Y, and Z axes, so as to adjust the precast middle partition wall to the appropriate position.

[0027] (7) Use the grasping head and the grasping turntable to translate and finely adjust the precast middle partition wall in the X and Y directions, and use the green light 3D level to ensure the position accuracy.

[0028] (8) Use the flipping gantry to lower the precast middle partition wall in the Z direction to the predetermined height and finely adjust it.

[0029] (9) Place steel shims under the bottom of the precast middle partition wall and fix the bolts.

[0030] (10) Use an electric hoist to lift the top installation materials to the appropriate position.

[0031] (11) The electromagnetic chuck holds the top installation materials, and the roof cylinder extends to the appropriate installation position and fixes them for subsequent construction.

[0032] The beneficial effects obtained by the present invention compared with the prior art are as follows:

[0033] 1. Through the cooperation of the flipping gantry assembly, the grasping head, the grasping turntable, and the gantry crane, the processes of moving, flipping, and adjusting the position of the precast middle partition wall are realized, and finally the precast middle partition wall is installed in place, thus realizing the efficient, safe, and accurate installation of the precast middle partition wall.

[0034] 2. The method for installing the middle partition wall in a large-diameter tunnel described in the present invention solves the installation problem of the precast middle partition wall, ensures efficient and safe installation, and has high installation accuracy.

[0035] 3. Anti-slip threads are processed at the top end of the piston rod of the grasping turntable oil cylinder. After the piston rod extends, it can pass through the anti-slip bolt holes on the precast middle partition wall. After installing the anti-slip bolts and retracting the piston rod, the precast middle partition wall can be fixed on the grasping turntable, which is both firm and safe, and avoids damaging the precast middle partition wall.

[0036] 4. Through the driving of the corresponding mating gears by the upper and lower motors of the flipping gantry, the horizontal rotation motor of the grasping head, the up and down rotation motor of the grasping head, the rotation motor of the grasping turntable, and the horizontal movement motor of the grasping head, the precast middle partition wall is rotated and finely adjusted along the X, Y, and Z axes, so as to adjust the precast middle partition wall to the appropriate position, ensuring stable installation operation and compact structure.

[0037] 5. The green light 3D level, the red light 3D level, and the gantry crane laser level can greatly ensure the installation accuracy of the precast middle partition wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is the front view of the installation equipment for the middle partition wall in a large-diameter tunnel described in the present invention.

[0039] Figure 2 is Figure 1 the left sectional view along A-A in

[0040] Figure 3 is Figure 2 the top sectional view along B-B in

[0041] Figure 4 the top view of the large-diameter tunnel middle wall installation equipment described in the present invention

[0042] Figure 5 is the three-dimensional schematic diagram of the gripping head

[0043] Figure 6 is the three-dimensional schematic diagram of the gripping head from another angle;

[0044] Figure 7 is the schematic diagram of the precast middle wall

[0045] In the figure: 1-main frame assembly, 101-left bottom beam, 102-middle bottom beam, 103-right bottom beam, 104-roof, 105-middle layer, 2-turning frame platform assembly, 201-platform beam, 202-middle platform beam, 203-guide rod, 3-turning frame platform up and down motor, 4-gripping head oil cylinder, 5-gripping head horizontal rotation motor, 6-gripping head, 601-gripping head horizontal gear, 602-gripping head vertical gear, 603-gripping head base, 604-gripping head connecting plate, 7-gripping head up and down rotation motor, 8-gripping turntable rotation motor, 9-gripping turntable, 901-gripping turntable gear, 10-green light 3D level, 11-gripping turntable oil cylinder, 12-main frame traveling motor, 13-red light 3D level, 14-roof platform, 15-roof oil cylinder, 16-electromagnetic chuck, 17-electric hoist, 18-bottom beam oil cylinder, 19-gantry crane, 20-gripping head horizontal movement motor, 21-gantry crane laser level, 22-middle wall precast member. Specific embodiments

[0046] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0047] In the description of the invention, it should be understood that the orientation or positional relationship indicated by terms such as "front", "rear", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0048] As Figures 1-7 shown, this embodiment discloses an installation device for the middle partition wall in a large-diameter tunnel, which mainly includes a main frame assembly 1, a flipping frame platform assembly 2, an up-and-down motor 3 for the flipping frame platform, a gripper head oil cylinder 4, a horizontal rotation motor 5 for the gripper head, a gripper head 6, an up-and-down rotation motor 7 for the gripper head, a rotation motor 8 for the gripper turntable, a gripper turntable 9, a green light 3D level 10, a gripper turntable oil cylinder 11, a main frame traveling motor 12, a red light 3D level 13, a roof platform 14, a roof oil cylinder 15, an electromagnetic chuck 16, an electric hoist 17, a bottom beam oil cylinder 18, a gantry crane 19, a horizontal movement motor 20 for the gripper head, a gantry crane laser level 21, and a precast middle partition wall 22, etc.

[0049] Among them, the main frame assembly 1 is a truss structure made of steel profiles, including a roof 104, a left bottom beam 101, a middle bottom beam, and a right bottom beam 103. The left bottom beam 101, the middle bottom beam, and the right bottom beam 103 extend front and rear. Three sliding rollers driven by the main frame traveling motor 12 and three vertical beams are installed on both the left bottom beam 101 and the right bottom beam 103. Two sliding rollers and two vertical beams are installed on the middle bottom beam 102. The upper ends of all vertical beams are fixedly connected to the roof. Such a design enables the main frame assembly to move conveniently. Two bottom beam cylinders 18 distributed front and rear are also installed at the bottom of the left bottom beam 101 and the right bottom beam 103. A roof platform 14 and two symmetrically distributed roof cylinders 15 are installed on the roof 104. An electric hoist 17 is installed on the roof platform 14. An electromagnetic chuck 16 is installed on the piston rod of each roof cylinder 15. A gantry crane 19 that can move left and right is installed at the tail position of the roof 104. The gantry crane is a conventional technical means and is used to hoist the precast middle partition wall 22 in this embodiment. An intermediate layer 105 is installed at the middle height position of the main frame assembly. The intermediate layer 105 is connected to the right bottom beam 103 and the roof 104 through two staircases respectively, facilitating the up and down movement of construction workers. For safety reasons, a plurality of safety protection guards are also installed on the main frame assembly 1.

[0050] Synchronous racks are installed on the left and right vertical surfaces of the two vertical beams on the midsole beam 102 and the first two vertical beams on the left sole beam 101 that match them. The turnover gantry assembly 2 is installed on the four vertical beams of the left sole beam 101 and the midsole beam 102 of the main gantry assembly 1 in a manner connected to Huadong Road. The number of turnover gantry up and down motors 3 is 4, and they are installed on the turnover gantry assembly 2. The turnover gantry up and down motors 3 are engaged with the synchronous racks of the corresponding vertical beams through gears to achieve the up and down movement of the turnover gantry assembly 2. The turnover gantry assembly 2 includes two gantry cross beams 201 distributed parallel to each other left and right. Two gantry intermediate cross beams 202 distributed parallel to each other front and back are slidably connected to the two gantry cross beams 201. Synchronous racks are installed on the opposite surfaces of the two gantry cross beams 201. The number of gripper horizontal movement motors 20 is four, and they are respectively fixedly installed on the gantry intermediate cross beam 202. The gripper horizontal movement motors 20 are engaged with the synchronous racks through gears to achieve the front and back movement of the gantry intermediate cross beam 202. Gripper cylinders 4 and guide rods 203 are fixedly installed at the bottoms of the two gantry intermediate cross beams 202. The movable rod of the gripper cylinder 4 is fixedly connected to the gripper 6. The gripper 6 is slidably connected to the guide rod 203 through a slider. With such a design, the overall gripper 6 can move up, move back and forth, and move left and right.

[0051] In addition to the gripper horizontal rotation motor, the gripper up and down rotation motor, and the gripper turntable rotation motor, the gripper also includes a gripper base 603 and a gripper connection plate 604. The gripper base 603 is slidably connected to the guide rod 203 of the turnover gantry assembly 2. A gripper horizontal gear 601 is rotatably installed on the gripper base 603 through a rotating shaft. The number of gripper horizontal rotation motors 5 is two and they are fixed on the gripper base 603. The two gripper horizontal rotation motors 5 are engaged and driven with the gripper horizontal gear 601 through gears. The lower end of the rotating shaft corresponding to the gripper horizontal gear 601 is fixedly connected to the gripper connection plate 604. Two rotatable gripper vertical gears 602 are symmetrically installed front and back at the bottom of the gripper connection plate through brackets. A gripper rod with a vertical axis is fixedly installed between the two gripper vertical gears 602. The number of gripper up and down rotation motors 7 is two and they are installed on the bottom surface of the gripper connection plate. The 2 gripper up and down rotation motors 7 are engaged with the 2 gripper vertical gears 602 through gears to achieve the up and down rotation of the gripper turntable 9. A gripper turntable gear 901 is rotatably installed at the front end of the gripper rod. The gripper turntable 9 is fixed on the outside of the gripper turntable gear 901. The number of gripper turntable rotation motors 8 is two and they are fixed at the front end of the gripper rod. The two gripper turntable 8 rotation motors are fixed at the front end of the gripper rod and are engaged with the gripper turntable gear 901 through gears.

[0052] The grabbing turntable 9 is circular or square, and 4 grabbing turntable oil cylinders 11 are installed on the grabbing turntable 9. The piston rods of the 4 grabbing turntable oil cylinders 11 are processed with anti-slip threads. After the piston rods extend, they can pass through 4 anti-slip bolt holes reserved on the middle partition precast member 22, and after installing anti-slip bolts and retracting the piston rods, the middle partition precast member 22 can be fixed on the grabbing turntable 9.

[0053] The green light 3D level 10 is installed on the grabbing turntable 9 and is used to detect the placement position of the middle partition precast member 22 to ensure the installation accuracy. The red light 3D level 13 is installed on the vehicle roof 104 and is used to detect and ensure the position of the central axis of the main frame assembly 1 and the central axis of the tunnel. The gantry crane laser level 21 is installed on the gantry crane 19 and is used to detect and ensure the position accuracy of the gantry crane 19 when hoisting and moving the middle partition precast member 22.

[0054] For the method for installing the middle partition in a large-diameter tunnel of the present invention, the middle partition precast member is installed by using the large-diameter tunnel middle partition installation equipment of the present invention, and the method includes the following steps:

[0055] (1) The double-headed vehicle transports the middle partition precast member 22 to a suitable position, the gantry crane 19 unloads the middle partition precast member 22, and hoists it to the tunnel center line position, and uses the gantry crane laser level 21 to ensure the accuracy of the hoisting position;

[0056] (2) The entire installation equipment drives the sliding rollers to move to the grabbing station through the main frame walking motor 12 on the main frame assembly 1. The flipping frame assembly 2 descends to a predetermined height through the flipping frame up and down motor 3. After the grabbing head 6 horizontally moves to a suitable position through the grabbing head oil cylinder 4, the grabbing turntable horizontally extends. The ejector rod of the grabbing turntable oil cylinder 11 extends, passes through 4 anti-slip bolt holes reserved on the middle partition precast member 22, installs anti-slip bolts in opposite directions on the ejector rod, and then the ejector rod of the grabbing turntable oil cylinder 11 retracts to fix the middle partition precast member 22 on the grabbing turntable 9;

[0057] (3) The flipping frame assembly 2 drives to lift the middle partition precast member 22 to a predetermined height through the flipping frame up and down motor 3;

[0058] (4) The grabbing turntable 9 drives the grabbing turntable gear 901 to rotate 90° through the grabbing turntable rotating motor 8, so that the middle partition precast member 22 rotates 90°;

[0059] (5) Before the whole installation equipment moves to the designated predetermined installation position, use the red light 3D level 13 to ensure the position accuracy. After moving to the predetermined installation position, the bottom beam oil cylinders 18 on the left bottom beam 101 and the right bottom beam 103 extend to adjust and keep the main frame assembly horizontally placed;

[0060] (6) Utilize the upper and lower motors 3 of the flipping platform, the horizontal rotation motor 5 of the gripping head, the up and down rotation motor 7 of the gripping head, the rotation motor 8 of the gripping turntable, and the horizontal movement motor 20 of the gripping head to drive the corresponding mating gears, so that the precast middle partition wall 22 rotates and fine-tunes around the XYZ three axes, and adjust the precast middle partition wall 22 to the appropriate position;

[0061] (7) Use the gripping head oil cylinder 4 and the horizontal movement motor 20 of the gripping head to translate and fine-tune the precast middle partition wall 22 in the XY directions, and use the green light 3D level 10 to ensure the position accuracy;

[0062] (8) Utilize the upper and lower motors 3 of the flipping platform to lower the precast middle partition wall 22 to the predetermined height in the Z direction and fine-tune;

[0063] (9) Place steel gaskets under the bottom of the precast middle partition wall 22 and fix the bolts;

[0064] (10) Use the electric hoist 17 to lift the top installation materials to the appropriate position;

[0065] (11) The electromagnetic chuck 16 holds the top installation materials, and the roof oil cylinder 15 extends to the appropriate installation position and fixes them.

Claims

1. An installation device for the middle partition wall in a large-diameter tunnel, characterized in that It includes a main frame assembly, a tipping frame platform assembly, a gripping head, a gripping turntable and a gantry crane; The main frame assembly includes a vehicle roof, a left bottom beam, a middle bottom beam and a right bottom beam. The left bottom beam, the middle bottom beam and the right bottom beam are distributed in the front-rear direction. The left bottom beam, the middle bottom beam and the right bottom beam are respectively connected to the bottom surface of the vehicle roof through a plurality of vertical beams; The tipping frame platform assembly is installed between the left bottom beam and the middle bottom beam and can move up and down. The gripping head is installed at the bottom of the tipping frame platform assembly and can move forward and backward and left and right. The gripping turntable is installed at the right end of the gripping head, and the gripping turntable is distributed along the front-rear direction; The gripping head includes a gripping head horizontal rotation motor, a gripping head up-down rotation motor, a gripping turntable rotation motor, a gripping head base and a gripping head connecting plate. The gripping head base is fixed to the bottom of the tipping frame platform assembly. A gripping head horizontal gear is rotatably installed on the gripping head base through a rotating shaft. The gripping head horizontal rotation motor is meshed and driven with the gripping head horizontal gear through a gear. The lower end of the rotating shaft corresponding to the gripping head horizontal gear is fixedly connected to the gripping head connecting plate; Two rotatable gripping head vertical gears are symmetrically installed in the front and rear through brackets at the bottom of the gripping head connecting plate. A gripping rod with a vertical axis is fixed between the two gripping head vertical gears. Two gripping head up-down rotation motors are installed at the bottom of the gripping head connecting plate; The two gripping head up-down rotation motors are meshed with the two gripping head vertical gears through gears to realize the up-down rotation of the gripping turntable; A gripping turntable gear is rotatably installed at the front end of the gripping rod. The gripping turntable is fixed to the outside of the gripping turntable gear. The gripping turntable rotation motor is fixed to the front end of the gripping rod and meshes with the gripping turntable gear through a gear; The gripping turntable can swing back and forth, swing up and down and rotate in the vertical plane in the front-rear direction; The gantry crane is installed at the tail of the vehicle roof; It also includes a green light 3D level, a red light 3D level and a gantry crane laser level. The green light 3D level is installed on the gripping turntable. The red light 3D level is installed on the vehicle roof. The gantry crane laser level is installed on the gantry crane; A vehicle roof platform and two vehicle roof oil cylinders are installed on the vehicle roof; An electric hoist is installed on the vehicle roof platform; An electromagnetic chuck is installed on the piston rod of the vehicle roof oil cylinder.

2. The large-diameter tunnel middle partition wall installation equipment according to claim 1, characterized in that, A plurality of gripping turntable oil cylinders are installed on the gripping turntable; The top end of the piston rod of the gripping turntable oil cylinder is processed with anti-slip threads.

3. The large-diameter tunnel partition wall installation equipment according to claim 2, wherein, The tipping frame platform assembly is slidably connected to the vertical beams corresponding to the left bottom beam and the middle bottom beam. Synchronous racks are provided on the vertical beams. A tipping frame up-down motor is provided on the tipping frame platform assembly. The tipping frame up-down motor is meshed with the synchronous rack of the corresponding vertical beam through a gear; The tipping frame platform assembly includes two parallel platform cross beams in the left-right direction. Two parallel platform intermediate cross beams in the front-rear direction are slidably connected to the two platform cross beams. Synchronous racks are installed on the opposite surfaces of the two platform cross beams. A gripping head horizontal movement motor is installed on the platform intermediate cross beam. The gripping head horizontal movement motor is meshed with the synchronous rack through a gear to realize the forward and backward movement of the platform intermediate cross beam; At the bottom of the middle cross beam between the two gantries, a gripping head oil cylinder and a guide rod are fixedly installed. The movable rod of the gripping head oil cylinder is fixedly connected to the gripping head, and the gripping head is slidably connected to the guide rod through a slider.

4. The large-diameter tunnel middle partition wall installation equipment according to claim 1, wherein, A plurality of sliding rollers are installed at the bottom of the left bottom beam, the middle bottom beam, and the right bottom beam. The sliding rollers of the left bottom beam and the right bottom beam are all driven by the main frame traveling motor; a plurality of bottom beam oil cylinders are also installed at the bottom of the left bottom beam and the right bottom beam.

5. A method for installing a middle partition wall in a large-diameter tunnel, characterized in that, Using the large-diameter tunnel middle partition wall installation equipment described in claims 1-4 to install the middle partition wall precast member, including the following steps: (1) The double-headed vehicle transports the middle partition wall precast member to a suitable position, and the gantry crane unloads the middle partition wall precast member and hoists it to the tunnel center line position; (2) The entire installation equipment moves to the gripping station through the main frame assembly. The flipping frame assembly descends to a predetermined height. After the gripping head is horizontally moved to a suitable position, the gripping turntable is extended to fix the middle partition wall precast member on the gripping turntable; (3) The flipping frame assembly lifts the middle partition wall precast member to a predetermined height; (4) The gripping turntable rotates the middle partition wall precast member by 90°; (5) Before the installation equipment as a whole moves to the designated predetermined installation position, use a red light 3D level to ensure the position accuracy, and make the installation equipment move to the predetermined installation position; (6) Use the flipping frame, the gripping head, and the gripping turntable to rotate and finely adjust the middle partition wall precast member around the X, Y, and Z axes to adjust the middle partition wall precast member to a suitable position; (7) Make the middle partition wall precast member translate and finely adjust in the X and Y directions through the gripping head and the gripping turntable, and use a green light 3D level to ensure the position accuracy; (8) Use the flipping frame to lower the middle partition wall precast member to a predetermined height in the Z direction and finely adjust; (9) Place steel gaskets at the bottom of the middle partition wall precast member and fix the bolts; (10) Use an electric hoist to hoist the top installation material to a suitable position; (11) The electromagnetic chuck sucks the top installation material, and the roof oil cylinder extends to the only suitable installation position and fixes it for subsequent construction.

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