Tunnel lining arch formwork lining device and construction method

Abstract

The present invention relates to the field of tunnel construction equipment, and specifically to a tunnel lining arch formwork lining device and a construction method, wherein the lining device comprises a trolley body, a gantry connected to the trolley body, and an arch formwork installed on the gantry, the gantry comprising a lower gantry and an upper gantry, the lower gantry being fixedly connected to the trolley body, and the upper gantry being slidably installed above the lower gantry; the arch formwork comprising a top formwork and at least one group of side formworks having the same length as the top formwork, the top formwork being installed above the upper gantry, the side formworks being respectively installed on both sides of the lower gantry, and the lower gantry driving the side formworks to move horizontally relative to the top formwork along the moving direction of the trolley body; the technical solution realizes the partial casting and forming of the inverted arch by driving the detachable side formworks and top formworks through the detachable lower gantry and upper gantry, and utilizes the time difference between the upper and lower parts solidifying and forming caused by the graded casting of the arch formwork, and casts the bottom of the next arch formwork in advance while the top is solidifying, thereby improving the working efficiency of the secondary lining.

Description

Technical Field

[0001] The present invention relates to the field of tunnel construction equipment, in particular to a tunnel lining arch formwork lining device and a construction method. Background Art

[0002] Tunnel lining trolleys are specialized equipment required for secondary lining during tunnel construction. They are used for concrete lining construction on the tunnel's inner wall. Tunnel lining trolleys are essential non-standard products for secondary lining during tunnel construction. They primarily include simple lining trolleys, fully hydraulic automatic lining trolleys, and grid-type lining trolleys.

[0003] Tunnel lining trolleys generally perform staged pouring during processing. For example, Chinese patent CN110965580A discloses a symmetrical and synchronous layered material placement and pouring system and construction method for open-cut tunnel lining. Workers first pour concrete into the formwork using a pouring assembly, and then use a vibrating assembly to perform vibration and other processing to form the bottom of the arch. However, after pouring is completed, it is necessary to wait for the entire arch to solidify before demoulding. This waiting time is long, and the bottom of the arch poured first solidifies faster, resulting in a large waste of time and greatly reducing work efficiency. Summary of the Invention

[0004] In view of the above problems, it is necessary to provide a tunnel lining arch formwork lining device and construction method to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A tunnel lining arch formwork lining device comprises a trolley body, a gantry connected to the trolley body and an arch formwork mounted on the gantry, a casting assembly and a vibrating assembly being mounted on the trolley body, the gantry comprising a lower gantry and an upper gantry, the lower gantry being fixedly connected to the trolley body, and the upper gantry being slidably mounted above the lower gantry; the arch formwork comprises a top formwork and at least one set of side formworks having the same length as the top formwork, the top formwork being mounted above the upper gantry, the side formworks being respectively mounted on both sides of the lower gantry, the lower gantry driving the side formworks to move horizontally relative to the top formwork along the moving direction of the trolley body, and the single movement of the side formworks The moving distance is less than the length of the top formwork; a first end formwork is provided at one end of the top formwork and the side formwork facing the moving direction of the tunnel trolley body, and a detachable second end formwork is provided at one end of the top formwork and the side formwork away from the first end formwork. The first end formwork and the second end formwork cooperate with the top formwork and the side formwork to form an initial pouring cavity; after the side formwork moves forward, it cooperates with the first end formwork and one side of the cast inverted arch to form a new pouring cavity; the gantry is also provided with a first linear drive for driving the upper gantry to move horizontally to above the lower gantry; the upper gantry is also provided with a supporting device for supporting the upper gantry.

[0007] Furthermore, a plurality of first working windows are provided on the side formwork, and the working ends of the pouring assembly and the vibrating assembly pour concrete into the pouring cavity formed by the side formwork and vibrate the concrete through the first working windows; the first working windows are blocked by a detachable blocking block.

[0008] Furthermore, a pouring channel is provided on the top of the top form, and the working end of the pouring assembly pours concrete into the pouring cavity formed by the top form through the pouring channel; a plurality of second working windows are provided on the first end head template at one end of the top form, and the second working windows are blocked by a detachable blocking block.

[0009] Furthermore, at least two sleeves are provided on the side of the sealing block facing the outside of the casting cavity, and the axes of the sleeves are arranged vertically; threaded sleeves are provided on the outsides of the first working window and the second working window. When the sealing block enters the first working window and the second working window, the axes of the sleeve and the axes of the threaded sleeve are on the same straight line, and a threaded rod is spirally installed in the threaded sleeve. The outer diameter of the threaded rod matches the inner diameter of the sleeve, and the threaded rod is inserted into the threaded sleeve and the sleeve to fix the position of the sealing block.

[0010] Furthermore, the working end of the first linear driver moves horizontally along the moving direction of the trolley body, one end of the first linear driver is fixedly mounted on the trolley body, and the working end of the first linear driver is fixedly connected to the upper gantry.

[0011] Furthermore, the supporting device includes a second linear drive fixedly mounted on the upper gantry, the working end of the second linear drive is arranged vertically downward, a support platform is installed on the working end of the second linear drive, and a plurality of supporting feet are arranged at the bottom of the support platform. When the lower gantry moves, the second linear drive drives the supporting feet to move down and contact the ground to support the upper gantry.

[0012] Furthermore, at least two positioning sleeves are provided at both ends of the bottom of the top mold, and the positioning sleeves are evenly spaced along the axial direction of the top mold, the positioning sleeves face the inner side of the top mold, and the axes of the positioning sleeves are vertically arranged; positioning components are provided on both sides of the lower door frame, and the positioning components include a mounting plate that extends horizontally along the trolley body, and at least two positioning rods that extend vertically upward are provided on the upper side of the mounting plate, and the axial spacing between adjacent two positioning rods is the same as the axial spacing between the positioning sleeves, and the bottom of the mounting plate is connected to the working end of the third linear drive, and the third linear drive drives the positioning rod to move in the vertical direction and insert into the positioning sleeve.

[0013] Furthermore, a guide rod extending vertically upward is provided on the upper side of the support platform; a base plate is provided in the middle of the lower door frame, and a first waist-shaped hole extending along the moving direction of the trolley body is provided on the base plate, the width of the first waist-shaped hole is the same as the diameter of the guide rod, the first waist-shaped hole is located on the moving path of the guide rod, and the guide rod moves in a limited position in the first waist-shaped hole; a second waist-shaped hole extending along the horizontal moving direction of the working end of the second linear drive is also provided on the base plate, and the working end of the second linear drive is connected to the support platform below the base plate through the second waist-shaped hole.

[0014] Furthermore, a sensing unit is provided on the base plate, and the sensing unit is mounted on a mounting seat, and the mounting seat is fixedly mounted on the second waist-shaped hole. An arc groove is provided on one side of the mounting seat, and the diameter of the arc groove is the same as the diameter of the working end of the second linear drive, and the working end of the sensing unit faces the side of the arc groove; when the working end of the second linear drive moves into the arc groove of the mounting seat, the top mold and the side mold are aligned, and the sensing unit is connected to the third linear drive through the controller signal.

[0015] A tunnel lining arch formwork lining construction method is implemented using a tunnel lining arch formwork lining device, comprising the following steps:

[0016] Step 1: Assemble the top formwork and side formwork to form the arch formwork. The top formwork is installed on the upper door frame, and the side formwork is installed on the lower door frame. Apply release agent to the inner walls of the top formwork and side formwork.

[0017] Step 2: Install the second end template at the tunnel entrance;

[0018] Step 3: First pour concrete into the side formwork and vibrate it, then pour concrete into the top formwork and vibrate it;

[0019] Step 4: After the concrete in the side formwork is formed, the trolley body drives the lower portal frame and the side formwork to move forward, the side formwork is demoulded and cooperates with the first end formwork and the formed arch tire side to form a new casting cavity, and the new arch tire lower part is cast;

[0020] Step 5: After the arch tyre in the top mould is solidified and formed, the first linear drive drives the upper gantry and the top mould to move forward to cast the new top of the arch tyre.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] First, the present invention realizes the partial casting and forming of the inverted arch by driving the detachable side formwork and top formwork through the detachable lower and upper portal frames. The time difference between the upper and lower parts of the inverted arch caused by the staged casting is rationally utilized. The bottom of the next arch part can be cast in advance while the top part is solidifying, thereby improving the work efficiency of the secondary lining in tunnel construction.

[0023] Secondly, the trolley body of the present invention preferentially drives the lower gantry of the gantry to move forward, so that the lower gantry drives the side formwork to move forward horizontally for demoulding, and cooperates with the first end formwork at one end of the side formwork and one side of the cured arch tire to form a new pouring cavity. The upper part of the newly formed pouring cavity has an opening, which improves the gas exhaust effect during vibration.

[0024] Thirdly, the top mold in the present invention is moved to the upper side of the side mold and positioned by the positioning assembly to ensure that the size of the arch formed each time is the same, and the sensing unit ensures that the positioning assembly accurately positions the top mold and the side mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view of a tunnel lining arch formwork lining device;

[0026] Figure 2 yes Figure 1 Cross-sectional view at AA of FIG;

[0027] Figure 3 yes Figure 2 A partial enlarged view of point B;

[0028] Figure 4 yes Figure 1 A partial enlarged view of point C;

[0029] Figure 5 It is a three-dimensional diagram of a tunnel lining arch formwork lining device in a first working state;

[0030] Figure 6 It is a three-dimensional diagram of a tunnel lining arch formwork lining device in a second working state;

[0031] Figure 7 yes Figure 6 A partial enlarged view of point D;

[0032] Figure 8 It is a main view of a tunnel lining arch formwork lining device in the third working state;

[0033] Figure 9 yes Figure 8 A local enlarged view of point E;

[0034] Figure 10 It is a three-dimensional diagram of a tunnel lining arch formwork lining device in a third working state;

[0035] Figure 11 It is a three-dimensional structural exploded diagram of a tunnel lining arch formwork lining device;

[0036] Figure 12 yes Figure 11 A partial enlarged view of point F.

[0037] 1. The trolley body; 2. the gantry; 21. the lower gantry; 211. the bottom plate; 212. the first waist-shaped hole; 213. the second waist-shaped hole; 22. the upper gantry; 23. the first linear drive; 24. the supporting device; 241. the second linear drive; 242. the supporting platform; 243. the supporting foot; 244. the guide rod; 25. the positioning assembly; 251. the mounting plate; 252. the positioning rod; 253. the third linear drive; 26. the sensing unit; 261. the mounting seat; 262. the arc groove; 3. the arch formwork; 31. the top formwork; 311. the casting channel; 312. the positioning sleeve; 32. the side formwork; 321. the first working window; 33. the first end formwork; 331. the second working window; 332. the threaded sleeve; 333. the threaded rod; 34. the second end formwork; 35. the blocking block; 351. the sleeve. DETAILED DESCRIPTION

[0038] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] refer to Figures 1 to 12 The tunnel lining arch formwork lining device described includes a trolley body 1, a gantry 2 connected to the trolley body 1, and an arch formwork 3 installed on the gantry 2. The trolley body 1 is equipped with a casting assembly and a vibrating assembly. The gantry 2 includes a lower gantry 21 and an upper gantry 22. The lower gantry 21 is fixedly connected to the trolley body 1, and the upper gantry 22 is slidably installed above the lower gantry 21; the arch formwork 3 includes a top formwork 31 and at least one group of side formworks 32 with the same length as the top formwork 31. The top formwork 31 is installed above the upper gantry 22, and the side formworks 32 are respectively installed on both sides of the lower gantry 21. The lower gantry 21 drives the side formworks 32 to move horizontally relative to the top formwork 31 along the moving direction of the trolley body 1. The single moving distance is less than the length of the top form 31; the top form 31 and the side form 32 are provided with a first end form 33 at one end facing the moving direction of the tunnel trolley body 1, and the top form 31 and the side form 32 are provided with a detachable second end form 34 at one end away from the first end form 33. The first end form 33 and the second end form 34 cooperate with the top form 31 and the side form 32 to form an initial pouring cavity; after the side form 32 moves forward, it cooperates with the first end form 33 and one side of the cast inverted arch to form a new pouring cavity; the portal frame 2 is also provided with a first linear drive 23 for driving the upper portal frame 22 to move horizontally to above the lower portal frame 21; the upper portal frame 22 is also provided with a supporting device 24 for supporting the upper portal frame 22.

[0040] The lining device in the present application is used for secondary lining in tunnel construction. The trolley body 1 drives the portal frame 2 to move along the track laid and installed in the tunnel. The staff installs the arch tire formwork 3 on the portal frame 2. The arch tire formwork 3 in this embodiment is formed by splicing the top formwork 31 at the top and the side formwork 32 on both sides of the bottom. The portal frame 2 is composed of a lower portal frame 21 and an upper portal frame 22 for sliding installation. A slide rail can be set on the top of the lower portal frame 21 so that the upper portal frame 22 can move horizontally and stably on the upper side of the lower portal frame 21. The arch tire formwork 3 cooperates with the first end formwork 33 and the second end formwork 34 at both ends to form a casting cavity. The top formwork 31 is installed on the upper portal frame 22 of the portal frame 2 through multiple cylinders, and the side formwork 32 is installed on both sides of the lower portal frame 21 of the portal frame 2 through multiple cylinders. On the side, after applying the release agent to the inner wall of the top form 31 and the side form 32, graded pouring is generally carried out. The staff first pours concrete into the side form 32 through the pouring assembly, and then uses the vibrating assembly to vibrate to form the bottom of the arch tire, and then pours concrete into the top form 31 to form a complete arch tire, thereby ensuring that the formed arch tire has a uniform density. The pouring assembly and the vibrating assembly in this embodiment are both prior art, which are installed on the trolley body 1 and can move with the trolley body 1. No more details are given here. It is not shown in the figure. In the prior art, after the pouring is completed, it is necessary to wait for the entire arch tire to solidify before demoulding. The waiting time is long, and the bottom of the arch tire poured first solidifies faster. This embodiment can preferentially drive the door frame through the trolley body 1 2, the lower door frame 21 moves forward, so that the lower door frame 21 drives the side formwork 32 to move forward horizontally for demoulding, and cooperates with the first end formwork 33 at one end of the side formwork 32 and the side of the cured arch tire to form a new casting cavity. Before the lower door frame 21 moves, the supporting device 24 on the upper door frame 22 is started, and the supporting device 24 fixes the upper door frame 22 in place, so that after the lower door frame 21 moves, the upper door frame 22 still keeps the position of the top formwork 31 stable. When the concrete in the top formwork 31 continues to solidify, the staff can pour the casting cavity formed by the side formwork 32 in advance, which improves work efficiency. The upper part of the newly formed casting cavity has an opening, which improves the exhaust effect during vibration. When the side formwork 32 is poured and the concrete in the top formwork 31 is completed After solidification, the trolley body 1 remains in position, and the first linear drive 23 drives the upper gantry 22 and the top mold 31 to move horizontally and reset. The top mold 31 is demoulded after horizontal movement, and the staff can cast the newly formed arch top casting cavity; this embodiment drives the detachable lower gantry 21 and the upper gantry 22 to drive the detachable side formwork 32 and the top formwork 31 to realize the partial casting and forming of the inverted arch, and reasonably utilizes the time difference between the upper and lower parts of the curing and forming caused by the graded casting of the inverted arch. While the top is solidified, the bottom of the next arch is cast in advance, thereby improving the work efficiency of the secondary lining in tunnel construction; the number of groups of side formworks 32 in this embodiment can be determined according to actual conditions, and the number of groups of side formworks 32 can be the same as the number of lower gantry 21 of the gantry 2.

[0041] In order to facilitate the delivery of concrete to the side formwork 32 during the first pouring, the following features are specifically provided:

[0042] The side formwork 32 is provided with a plurality of first working windows 321 , through which the working ends of the pouring assembly and the vibrating assembly pour concrete into the pouring cavity formed by the side formwork 32 and vibrate the concrete; the first working windows 321 are blocked by a detachable blocking block 35 .

[0043] The side formwork 32 in this embodiment is provided with a first working window 321. During pouring, the staff can remove the blocking block 35 blocking the first working window 321 so that the pouring assembly can pour concrete into the side formwork 32, or use a vibrating assembly to vibrate the concrete in the side formwork 32 through the first working window 321. After use, the blocking block 35 can block the first working window 321 to ensure that when pouring into the top formwork 31 subsequently, concrete will not leak from the first working window 321. During subsequent movement, the upper side of the pouring cavity in the side formwork 32 is completely open, and the staff can directly pour and vibrate from the upper opening of the side formwork 32 without removing the blocking block 35. The first working window 321 can also be provided on the first end formwork 33 at one end of the side formwork 32, with the same effect.

[0044] In order to facilitate the pouring of the top formwork 31 of the arch tire, the following features are specifically set:

[0045] A pouring channel 311 is provided on the top of the top form 31, and the working end of the pouring assembly pours concrete into the pouring cavity formed by the top form 31 through the pouring channel 311; a plurality of second working windows 331 are provided on the first end template 33 at one end of the top form 31, and the second working windows 331 are blocked by a detachable blocking block 35.

[0046] After the concrete is poured into the mold 31, the workers can remove the second end template 34 at the other end of the mold 31 to seal the second window 331, so that the concrete will not leak out after pouring.

[0047] In order to ensure the blocking effect of the blocking block 35, the following features are specifically set:

[0048] At least two sleeves 351 are provided on the side of the blocking block 35 facing the outside of the casting cavity, and the axis of the sleeve 351 is set vertically; the outer sides of the first working window 321 and the second working window 331 are both provided with threaded sleeves 332. When the blocking block 35 enters the first working window 321 and the second working window 331, the axis of the sleeve 351 and the axis of the threaded sleeve 332 are on the same straight line, and a threaded rod 333 is spirally installed in the threaded sleeve 332. The outer diameter of the threaded rod 333 coincides with the inner diameter of the sleeve 351. The threaded rod 333 is inserted into the threaded sleeve 332 and the sleeve 351 to fix the position of the blocking block 35.

[0049] When the block 35 is in the first working window 321 and the second working window 331, the sleeve 351 on the outside of the block 35 is located on the axial position of the threaded sleeve 332 set on one side of the first working window 321 and the second working window 331. The sleeve 351 can be located above the threaded sleeve 332 or below the threaded sleeve 332. At this time, the staff can rotate the threaded rod 333 spirally installed on the threaded sleeve 332 to move the threaded rod 333 into the insertion sleeve 351 to position the block 35 so that the block 35 remains in the same position when it is subjected to the concrete pressure inside the top form 31 and the side form 32. The inner wall of the block 35 is kept in the same plane as the inner wall of the top form 31 and the side form 32, thereby ensuring that the surface of the arch formed by casting is flat and convenient for the horizontal movement and demoulding of the top form 31 and the side form 32.

[0050] In order to ensure that the first linear drive 23 can follow the movement of the lower gantry 21, the following features are specifically set:

[0051] The working end of the first linear driver 23 moves horizontally along the moving direction of the trolley body 1 . One end of the first linear driver 23 is fixedly mounted on the trolley body 1 . The working end of the first linear driver 23 is fixedly connected to the upper gantry 22 .

[0052] One end of the first linear drive 23 is fixedly mounted on the trolley body 1. The first linear drive 23 may be a cylinder. When the lower gantry 21 moves forward, the trolley body 1 stops driving, and the upper gantry 22 is supported by the supporting device 24 and remains in place. The first linear drive 23 extends to push the lower gantry 21 forward. When the top mold 31 needs to be reset, the supporting device 24 releases the support for the upper gantry 22, and the trolley body 1 brakes to keep the position of the lower gantry 21 unchanged. The working end of the first linear drive 23 contracts to drive the upper gantry 22 and the top mold 31 forward.

[0053] In order to ensure that the support device 24 can ensure the stability of the upper door frame 22 and the top mold 31 when the lower door frame 21 moves forward, the following features are specifically set:

[0054] The supporting device 24 includes a second linear drive 241 fixedly mounted on the upper gantry 22. The working end of the second linear drive 241 is arranged vertically downward. A support platform 242 is installed on the working end of the second linear drive 241. A plurality of supporting feet 243 are arranged at the bottom of the support platform 242. When the lower gantry 21 moves, the second linear drive 241 drives the supporting feet 243 to move downward to contact the ground for supporting the upper gantry 22.

[0055] The second linear drive 241 can be a cylinder, and the working end of the second linear drive 241 is vertically downward and installed with a support platform 242. Under normal working conditions, the bottom end of the support foot 243 at the bottom of the support platform 242 is higher than the bottom end of the lower gantry 21 and does not contact the ground. When the lower gantry 21 is ready to move forward, the second linear drive 241 starts to drive the support platform 242 to move downward, so that the support foot 243 contacts the ground, supporting the upper gantry 22, ensuring the stability of the upper gantry 22 and the top form 31 when the lower gantry 21 moves, and ensuring that the curing of the concrete in the top form 31 is not affected; when the top of the arch tire is cured, the second linear drive 241 drives the support platform 242 to move upward, making it convenient for the first linear drive 23 to drive the upper gantry 22 and the top form 31 to move forward.

[0056] In order to ensure that the top formwork 31 and the side formwork 32 are aligned when assembled to form the arch formwork 3, the following features are specifically provided:

[0057] At least two positioning sleeves 312 are provided at both ends of the bottom of the top mold 31. The positioning sleeves 312 are evenly spaced along the axial direction of the top mold 31. The positioning sleeves 312 face the inner side of the top mold 31, and the axes of the positioning sleeves 312 are vertically arranged. Positioning components 25 are provided on both sides of the lower door frame 21. The positioning components 25 include a mounting plate 251 that extends horizontally along the trolley body 1. At least two positioning rods 252 that extend vertically upward are provided on the upper side of the mounting plate 251. The axial spacing between two adjacent positioning rods 252 is the same as the axial spacing between the positioning sleeves 312. The bottom of the mounting plate 251 is connected to the working end of the third linear drive 253, and the third linear drive 253 drives the positioning rod 252 to move in the vertical direction and insert into the positioning sleeve 312.

[0058] The top mold 31 of this embodiment is provided with positioning sleeves 312 on both sides of the bottom, and when the top mold 31 and the side mold plates 32 are aligned, the positioning assembly 25 provided on the lower door frame 21 on which the side mold plates 32 are installed is started, and the third linear actuator 253 of the positioning assembly 25 drives the mounting plate 251 to move upward, so that the positioning rods 252 on the mounting plate 251 enter the corresponding top mold 31, and the lower door frame 21 and the top mold 31 are docked to ensure that the top mold 31 and the side mold plates 32 installed on both sides of the lower door frame 21 are aligned, and a complete arch tire mold plate 3 is formed by splicing; the third linear actuator 253 of this embodiment can be an oil cylinder, and the mounting plate 251 There are at least two positioning rods 252 and positioning sleeves 312 on the trolley body 1. The single movement range of the trolley body 1 can be the same as the axial distance between two adjacent positioning rods 252, or a multiple thereof. When the lower gantry 21 moves forward, the third linear drive 253 drives the positioning rod 252 to move downward, so that the side template 32 can move horizontally relative to the top template 31. The third linear drive 253 drives the positioning rod 252 to move upward again, and still allows part of the positioning rod 252 to be inserted into the positioning sleeve 312 of the top template 31 to complete the connection between the top template 31 and the side template 32, thereby further stabilizing the top template 31 and the side template 32.

[0059] In order to ensure that the trolley body 1 drives the lower gantry 21 to move the same distance in a single movement, the following features are specifically set:

[0060] A guide rod 244 extending vertically upward is provided on the upper side of the support platform 242; a base plate 211 is provided in the middle of the lower door frame 21, and a first waist-shaped hole 212 extending along the moving direction of the trolley body 1 is provided on the base plate 211. The width of the first waist-shaped hole 212 is the same as the diameter of the guide rod 244. The first waist-shaped hole 212 is located on the moving path of the guide rod 244, and the guide rod 244 moves in a limited position in the first waist-shaped hole 212; a second waist-shaped hole 213 extending along the horizontal moving direction of the working end of the second linear drive 241 is also provided on the base plate 211, and the working end of the second linear drive 241 is connected to the support platform 242 below the base plate 211 through the second waist-shaped hole 213.

[0061] The base plate 211 is provided with a sensing unit 26, which is mounted on a mounting seat 261. The mounting seat 261 is fixedly mounted on the second waist-shaped hole 213. An arc groove 262 is provided on one side of the mounting seat 261. The diameter of the arc groove 262 is the same as the diameter of the working end of the second linear driver 241. The working end of the sensing unit 26 faces the side of the arc groove 262. When the working end of the second linear driver 241 moves into the arc groove 262 of the mounting seat 261, the top mold 31 is aligned with the side mold plate 32, and the sensing unit 26 is connected to the third linear driver 253 through the controller signal.

[0062] The support platform 242 in this embodiment is inserted into the first waist-shaped hole 212 at the bottom of the lower door frame 21 through the guide rod 244, and the working end of the second linear driver 241 of the support device 24 that supports the upper door frame 22 moves along the second waist-shaped hole 213 on the bottom plate 211, thereby ensuring the stability of the support platform 242 when it moves relatively in the first waist-shaped hole 212, and the mounting seat 261 installed on the second waist-shaped hole 213 can adjust its position on the second waist-shaped hole 213 according to the single movement distance of the trolley body 1, ensuring that when the first linear driver 2 When the top mold 31 is moved to align with the side mold plate 32, the outer wall of the second linear actuator 241 fits into the arc-shaped groove 262 of the mounting seat 261, and the outer wall of the second linear actuator 241 activates the sensing unit 26. The sensing unit 26 can be a contact sensor or a non-contact sensor. The sensing unit 26 is connected to the third linear actuator 253 through the controller. When the sensing unit 26 is triggered, the controller activates the third linear actuator 253, driving the positioning rod 252 to enter the positioning sleeve 312 to automatically connect the top mold 31 and the side mold plate 32.

[0063] A tunnel lining arch formwork lining construction method is implemented using a tunnel lining arch formwork lining device, comprising the following steps:

[0064] Step 1: assemble the top formwork 31 and the side formwork 32 to form the arch formwork 3. The top formwork 31 is installed on the upper door frame 22, and the side formwork 32 is installed on the lower door frame 21. Apply a release agent to the inner walls of the top formwork 31 and the side formwork 32.

[0065] Step 2: Install the second end template 34 when located at the tunnel entrance;

[0066] Step 3: First pour concrete into the side formwork 32 and vibrate it, then pour concrete into the top formwork 31 and vibrate it;

[0067] Step 4: After the concrete in the side formwork 32 is formed, the trolley body 1 drives the lower portal frame 21 and the side formwork 32 to move forward, the side formwork 32 is demoulded and cooperates with the first end formwork 33 and one side of the formed arch tire to form a new casting cavity, and cast the lower part of the new arch tire;

[0068] Step 5: After the arch tyre in the top mould 31 is solidified and formed, the first linear drive 23 drives the upper gantry 22 and the top mould 31 to move forward to cast a new arch tyre top.

[0069] Working principle: The trolley body 1 drives the portal frame 2 to move along the track laid and installed in the tunnel. The staff installs the arch tire formwork 3 on the portal frame 2. The arch tire formwork 3 is spliced ​​by the top formwork 31 at the top and the side formworks 32 on both sides of the bottom. The portal frame 2 is composed of a lower portal frame 21 and an upper portal frame 22 slidingly installed. The detachable lower portal frame 21 and the upper portal frame 22 drive the detachable side formwork 32 and the top formwork 31 to realize the partial casting and forming of the inverted arch. The time difference between the upper and lower parts of the curing and forming caused by the graded casting of the inverted arch is reasonably utilized. While the top is curing, the bottom of the next arch tire is cast in advance, thereby improving the work efficiency of the secondary lining in tunnel construction.

[0070] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A tunnel lining arch formwork lining device, comprising a trolley body (1), a portal frame (2) connected to the trolley body (1), and an arch formwork (3) mounted on the portal frame (2), wherein a pouring assembly and a vibrating assembly are mounted on the trolley body (1), and the device is characterized in that: The door frame (2) comprises a lower door frame (21) and an upper door frame (22), the lower door frame (21) is fixedly connected to the trolley body (1), and the upper door frame (22) is slidably mounted above the lower door frame (21); The arch formwork (3) comprises a top formwork (31) and at least one set of side formworks (32) having the same length as the top formwork (31), the top formwork (31) being mounted above the upper portal frame (22), and the side formworks (32) being mounted on both sides of the lower portal frame (21), the lower portal frame (21) driving the side formworks (32) to move horizontally relative to the top formwork (31) along the moving direction of the trolley body (1), and the single moving distance of the side formworks (32) being less than the length of the top formwork (31); A first end template (33) is provided at one end of the top template (31) and the side template (32) facing the moving direction of the tunnel trolley body (1); a detachable second end template (34) is provided at one end of the top template (31) and the side template (32) away from the first end template (33); the first end template (33) and the second end template (34) cooperate with the top template (31) and the side template (32) to form an initial casting cavity; After the side template (32) moves forward, it cooperates with the first end template (33) and one side of the cast inverted arch to form a new casting cavity; The gantry (2) is also provided with a first linear drive (23) for driving the upper gantry (22) to move horizontally to above the lower gantry (21); The upper door frame (22) is also provided with a supporting device (24) for supporting the upper door frame (22); The supporting device (24) comprises a second linear drive (241) fixedly mounted on the upper gantry (22), and a supporting platform (242) is mounted on the working end of the second linear drive (241); At least two positioning sleeves (312) are provided at both ends of the bottom of the top mold (31), and the positioning sleeves (312) are distributed at equal intervals along the axis direction of the top mold (31), and the positioning sleeves (312) face the inner side of the top mold (31), and the axis of the positioning sleeves (312) is vertically arranged; Positioning assemblies (25) are provided on both sides of the lower door frame (21), and the positioning assemblies (25) include a mounting plate (251) extending horizontally and moving along the trolley body (1); at least two positioning rods (252) extending vertically upward are provided on the upper side of the mounting plate (251); the axial spacing between two adjacent positioning rods (252) is the same as the axial spacing between the positioning sleeves (312); the bottom of the mounting plate (251) is connected to the working end of the third linear actuator (253); the third linear actuator (253) drives the positioning rod (252) to move in the vertical direction and insert into the positioning sleeve (312); A guide rod (244) extending vertically upward is provided on the upper side of the support platform (242); A bottom plate (211) is provided in the middle of the lower door frame (21), and a first waist-shaped hole (212) extending along the moving direction of the trolley body (1) is provided on the bottom plate (211), the width of the first waist-shaped hole (212) being the same as the diameter of the guide rod (244), the first waist-shaped hole (212) being located on the moving path of the guide rod (244), and the guide rod (244) being limited in movement in the first waist-shaped hole (212); A second waist-shaped hole (213) extending in the horizontal moving direction of the working end of the second linear driver (241) is further provided on the bottom plate (211); the working end of the second linear driver (241) passes through the second waist-shaped hole (213) and is connected to the support platform (242) below the bottom plate (211); The bottom plate (211) is provided with a sensing unit (26), the sensing unit (26) is mounted on a mounting seat (261), the mounting seat (261) is fixedly mounted on the second waist-shaped hole (213), a side of the mounting seat (261) is provided with an arc groove (262), the diameter of the arc groove (262) is the same as the diameter of the working end of the second linear actuator (241), and the working end of the sensing unit (26) faces the side of the arc groove (262); When the working end of the second linear actuator (241) moves into the arc groove (262) of the mounting seat (261), the top mold (31) is aligned with the side mold plate (32), and the sensing unit (26) is connected to the third linear actuator (253) through a controller signal.

2. A tunnel lining arch formwork lining device according to claim 1, characterized in that: The side formwork (32) is provided with a plurality of first working windows (321), and the working ends of the pouring assembly and the vibrating assembly pour concrete into the pouring cavity formed by the side formwork (32) through the first working windows (321) and vibrate the concrete; The first working window (321) is blocked by a detachable blocking block (35).

3. A tunnel lining arch formwork lining device according to claim 2, characterized in that: A pouring channel (311) is provided on the top of the top form (31), and the working end of the pouring assembly pours concrete into the pouring cavity formed by the top form (311) through the pouring channel (311); A plurality of second working windows (331) are provided on the first end template (33) at one end of the top mold (31), and the second working windows (331) are blocked by detachable blocking blocks (35).

4. A tunnel lining arch formwork lining device according to claim 3, characterized in that: At least two sleeves (351) are provided on one side of the blocking block (35) facing the outside of the casting cavity, and the axes of the sleeves (351) are vertically arranged; A threaded sleeve (332) is provided on the outside of the first working window (321) and the second working window (331). When the blocking block (35) enters the first working window (321) and the second working window (331), the axis of the sleeve (351) and the axis of the threaded sleeve (332) are on the same straight line. A threaded rod (333) is spirally installed in the threaded sleeve (332). The outer diameter of the threaded rod (333) matches the inner diameter of the sleeve (351). The threaded rod (333) is inserted into the threaded sleeve (332) and the sleeve (351) to fix the position of the blocking block (35).

5. The tunnel lining arch formwork lining device according to claim 1, characterized in that: The working end of the first linear driver (23) moves horizontally along the moving direction of the trolley body (1), one end of the first linear driver (23) is fixedly mounted on the trolley body (1), and the working end of the first linear driver (23) is fixedly connected to the upper door frame (22).

6. A tunnel lining arch formwork lining device according to claim 5, characterized in that: The working end of the second linear drive (241) is arranged vertically downward, and a plurality of supporting feet (243) are arranged at the bottom of the support platform (242). When the lower door frame (21) moves, the second linear drive (241) drives the supporting feet (243) to move downward to contact the ground and support the upper door frame (22).

7. A tunnel lining arch formwork lining construction method, implemented by using a tunnel lining arch formwork lining device according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: assembling the top mold (31) and the side mold (32) to form the arch mold (3), the top mold (31) is installed on the upper door frame (22), the side mold (32) is installed on the lower door frame (21), and the inner walls of the top mold (31) and the side mold (32) are coated with a release agent; Step 2: Install the second end template (34) when located at the tunnel entrance; Step 3: first pour concrete into the side formwork (32) and vibrate it, then pour concrete into the top formwork (31) and vibrate it; Step 4: After the concrete in the side formwork (32) is formed, the trolley body (1) drives the lower portal frame (21) and the side formwork (32) to move forward, the side formwork (32) is demoulded and cooperates with the first end formwork (33) and one side of the formed arch tire to form a new casting cavity, and cast the lower part of the new arch tire; Step 5: After the arch tire in the top mold (31) is solidified and formed, the first linear driver (23) drives the upper door frame (22) and the top mold (31) to move forward to cast a new arch tire top.

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