Tunnel and mine cave secondary lining plate rounding device
By using the coordinated operation of ring guide rail support and hydraulic rounding device in tunnel construction, the problems of lining offset and low assembly accuracy in traditional tunnel construction have been solved, achieving efficient and precise lining support and roundness adjustment, thus improving construction efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 14TH BUREAU GROUP EQUIPMENT CO LTD
- Filing Date
- 2025-09-15
- Publication Date
- 2026-07-21
AI Technical Summary
In traditional tunnel construction, the secondary lining assembly relies on manual positioning and simple support devices, which leads to lining misalignment, low assembly accuracy, and insufficient construction efficiency, making it impossible to achieve integrated support-positioning-adjustment operations.
Design a lining assembly device that includes a walking component, a ring guide rail support, and a hydraulic lining device. Through the asymmetrical layout of the hydraulic lining device and the coordinated action of multiple sets of hydraulic cylinders, the device achieves precise support, positioning, and roundness adjustment of the lining. Combined with the movement function of the walking component, it enables efficient assembly of the lining.
It improves the construction efficiency of lining assembly, with the roundness error of a single lining piece ≤2mm and the overall roundness error ≤5mm, significantly improving the construction quality and safety of secondary lining in tunnels and mines, and increasing construction efficiency by more than 50%.
Smart Images
Figure CN224532738U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel lining construction technology, and in particular to a device for rounding secondary lining plates in tunnels and mines. Background Technology
[0002] In tunnel construction, secondary lining is a crucial process for ensuring the structural safety of the tunnel. Its core is assembling prefabricated segments (or linings) into a ring structure according to design requirements. Traditional secondary lining assembly mainly relies on manual positioning and simple support devices. During the assembly process, segments are prone to displacement due to their own weight or construction disturbances, leading to a decrease in assembly accuracy. Each lining piece needs to be tightly fitted with adjacent lining pieces to form an integral ring, and traditional devices cannot adjust the radial position and roundness of the lining pieces in real time. The lining pieces need to be hoisted one by one and adjusted manually, and coordinating multiple lining pieces takes a long time, affecting the overall construction progress. The support and assembly processes are separated, making it impossible to achieve integrated "support-positioning-adjustment" operations.
[0003] Therefore, there is an urgent need for an intelligent secondary lining assembly auxiliary system that integrates support, positioning, and adjustment functions to solve the above-mentioned technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a device for rounding secondary lining plates in tunnels and mines, which aims to solve the problems of unstable support, low roundness adjustment accuracy, and insufficient construction efficiency in the assembly of secondary lining plates in tunnels and mines.
[0005] To achieve the above objectives, this utility model provides a device for rounding secondary lining plates in tunnels and mines, including a walking assembly, with an annular guide rail support provided above the walking assembly;
[0006] Hydraulic rounding devices are fixed on the annular track supported by the annular guide rail. The hydraulic rounding devices are arranged asymmetrically on the front and rear sides of the annular track, with 6 hydraulic rounding devices on each side and divided into 3 groups. The hydraulic rounding devices on the front side are symmetrically supported on the inner side of the assembled segments by hydraulic cylinders or rigid support arms. During the rounding process, they counteract the radial force applied by the lining plate, prevent the segments from shifting or deforming due to uneven force, and ensure construction safety. The hydraulic rounding devices on the rear side act directly on both sides of the lining to be rounded by telescopic support arms or clamping cylinders. Through the coordinated action of multiple groups of hydraulic cylinders, the curvature of a single lining piece is precisely adjusted to ensure that the roundness error of the lining with the design circumference is ≤5mm, and finally achieve the overall roundness requirement of the secondary lining.
[0007] The hydraulic circular forming device includes a base, a hydraulic column, a connecting rod, a shield beam, a top beam, a middle beam, a front beam, a middle telescopic cylinder, a front telescopic cylinder, and an arc-shaped plate. The base is hinged to the bottom end of the hydraulic column. The top end of the telescopic shaft of the hydraulic column is hinged to the top beam. The shield beam is hinged to the rear end of the top beam. The shield beam and the base are hinged together by the connecting rod. The top beam is hinged to the bottom end of the middle telescopic cylinder. The top end of the telescopic shaft of the middle telescopic cylinder is hinged to the middle beam. The middle beam is hinged to the bottom end of the front telescopic cylinder. The top end of the telescopic shaft of the front telescopic cylinder is hinged to the front beam. The arc-shaped plate is installed on the top beam, the middle beam, and the front beam and fits against the lining to increase the contact surface of the lining support.
[0008] The walking assembly includes a drive wheel set, a driven wheel set, and a walking drive component. The drive wheel set has a locking function. The drive wheel set and the driven wheel set are respectively installed on both sides of the bottom of the annular guide rail support, and the outer periphery of the wheel sets makes rolling contact with the track beam on the tunnel / mine floor. The walking drive component includes a walking motor and a reducer, the output end of which is connected to the wheel axle of the drive wheel set, for driving the annular guide rail support to move along the tunneling direction.
[0009] The walking component is in direct contact with the tunnel / mine ground and can move flexibly along the tunnel extension direction, thereby enabling the overall position adjustment of the device in the construction area.
[0010] The annular guide rail support includes two parallel and oppositely arranged annular tracks and an intermediate reinforcing beam structure connecting the two annular tracks, thereby forming a closed annular frame.
[0011] The cross-section of the annular track is concave.
[0012] This utility model discloses a rounding device for secondary lining plates in tunnels and mines. The annular guide rail support includes two annular tracks and a central reinforcing beam structure. A ring platform is set at the top, and a hydraulic rounding device is fixed on the top annular track. The rounding device, which provides balance support, supports the tunnel segments during operation, while the device supporting the secondary lining plates supports the secondary lining plates. This application, through an integrated "support-positioning-adjustment" design, achieves dual stable support for both tunnel segments and lining plates during lining assembly, multi-dimensional precise roundness adjustment, and efficient collaborative operation. Compared to traditional processes, it improves construction efficiency by more than 50%, and the single-piece roundness of the lining plate is significantly enhanced. With a roundness error of ≤2mm and an overall roundness error of ≤5mm, the construction quality and safety of secondary lining in tunnels and mines are significantly improved. During construction, a point-type rounding device with a small space is used to adjust the roundness of the secondary lining plate. After the roundness is adjusted to the correct position, it is used in conjunction with a connector to ensure that the inner roundness of the secondary lining plate meets the actual requirements. At the same time, the two hydraulic rounding devices on both sides have different functions. One side mainly supports the pipe segments and plays a balancing role, while the other side mainly supports the pipe segments and adjusts the inner roundness. This can solve the problems of unstable support, low roundness adjustment accuracy, and insufficient construction efficiency in the assembly of secondary lining in tunnels and mines. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of the overall structure of the tunnel and mine secondary lining plate rounding device of this utility model.
[0015] Figure 2 This is a schematic diagram of the extended state of the hydraulic rounding device of the tunnel and mine secondary lining rounding device of this utility model.
[0016] Figure 3 This is a schematic diagram of the retracted state of the hydraulic rounding device of the tunnel and mine secondary lining rounding device of this utility model.
[0017] In the diagram: 101-ring guide rail support, 102-ring track, 103-intermediate reinforcing crossbeam structure, 201-walking component, 202-drive wheel set, 203-driven wheel set, 204-walking drive component, 301-hydraulic rounding device, 302-base, 303-hydraulic column, 304-connecting rod, 305-protective beam, 306-top beam, 307-intermediate beam, 308-front beam, 309-intermediate telescopic cylinder, 310-front telescopic cylinder, 311-arc-shaped plate. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] like Figures 1 to 2 As shown, where Figure 1 This is a schematic diagram of the overall structure of the circular lining device for tunnels and mine shafts. Figure 2 This is a schematic diagram showing the extended state of the hydraulic rounding device in the secondary lining rounding device for tunnels and mines. Figure 3 This is a schematic diagram of the retracted state of the hydraulic rounding device for secondary lining of tunnels and mines. This utility model provides a rounding device for secondary lining of tunnels and mines, comprising a walking assembly 201, a ring guide rail support 101, and a hydraulic rounding device 301. The hydraulic rounding device 301 includes a base 302, a hydraulic column 303, a connecting rod 304, a shield beam 305, a top beam 306, a middle beam 307, a front beam 308, a middle telescopic cylinder 309, a front telescopic cylinder 310, and an arc-shaped plate 311. The walking assembly 201 includes a drive wheel set 202, a driven wheel set 203, and a walking drive component 204. This solution can solve the problems of unstable support, low roundness adjustment accuracy, and insufficient construction efficiency in the assembly of secondary linings in tunnels and mines. It can be understood that the aforementioned solution can achieve dual stable support for the pipe segments and linings, multi-dimensional precise roundness adjustment, and efficient collaborative operation during the lining assembly process.
[0020] In this embodiment, the walking component 201 is used to move the annular guide rail support 101.
[0021] The walking component 201 is provided with an annular guide rail support 101 above it; the walking component 201 includes a self-locking walking wheel or a track guide wheel group structure.
[0022] A hydraulic rounding device 301 is fixed on the annular track 102 of the annular guide rail support 101. The hydraulic rounding devices 301 are arranged asymmetrically on the front and rear sides of the annular track 102, with 6 hydraulic rounding devices 301 on each side, divided into 3 groups. The hydraulic rounding devices 301 on the front side are symmetrically supported on the inner side of the assembled segments by hydraulic cylinders or rigid support arms. During the rounding process, they counteract the radial force applied by the lining plate, prevent the segments from shifting or deforming due to uneven force, and ensure construction safety. The hydraulic rounding devices 301 on the rear side act directly on both sides of the lining to be rounded by telescopic support arms or clamping cylinders. Through the coordinated action of multiple sets of hydraulic cylinders, the curvature of a single lining piece is precisely adjusted to ensure that the roundness error of the lining with the designed circumference is ≤5mm, and finally achieve the overall roundness requirement of the secondary lining. The hydraulic rounding device 301 adopts an asymmetrical layout—it is arranged on the front side (based on the direction of travel) and the rear side (opposite to the direction of travel) of the annular track 102. The front hydraulic rounding device 301 is symmetrically supported by hydraulic cylinders or rigid support arms on the inner wall of the pre-assembled tunnel segment, which is the secondary lining of the tunnel. The rear hydraulic rounding device 301 acts directly on both sides of the lining segment to be rounded (i.e., the inner and outer arc surfaces of the lining plate) through telescopic support arms or clamping cylinders, through the coordinated action of multiple sets of hydraulic cylinders (such as radial pushing or clamping adjustment).
[0023] The base 302 is hinged to the bottom end of the hydraulic column 303. The top end of the telescopic shaft of the hydraulic column 303 is hinged to the top beam 306. The rear end of the top beam 306 is hinged to the shield beam 305. The shield beam 305 and the base 302 are hinged together by the connecting rod 304. The top beam 306 is hinged to the bottom end of the intermediate telescopic cylinder 309. The top end of the telescopic shaft of the intermediate telescopic cylinder 309 is hinged to the intermediate beam 307. The intermediate beam 307 is hinged to the bottom end of the front telescopic cylinder 310. The top end of the telescopic shaft of the front telescopic cylinder 310 is hinged to the front beam 308. The arc-shaped plate 311 is installed on the top beam 306, the intermediate beam 307 and the front beam 308 and fits against the lining to increase the contact surface of the lining support. The structure and control technology of the intermediate telescopic cylinder 309 and the front telescopic cylinder 310 are existing technologies, so their specific control processes and product models will not be described in detail here, as long as they meet the requirements of this application.
[0024] Secondly, the drive wheel assembly 202 has a locking function. The drive wheel assembly 202 and the driven wheel assembly 203 are respectively connected to the bottom sides of the annular guide rail support 101, with the outer circumference of the wheel body making rolling contact with the track beam on the tunnel / mine floor. The travel drive component 204 includes a travel motor and a reducer, the output end of which is connected to the wheel axle of the drive wheel assembly 202, for driving the annular guide rail support 101 to move along the tunneling direction. During operation, the travel motor of the travel drive component 204 drives the reducer to move, which in turn drives the drive wheel assembly 202 to move, and with the cooperation of the driven wheel assembly 203, the annular guide rail support 101 moves along the tunneling direction.
[0025] Then, the walking component 201 directly contacts the tunnel / mine ground and moves flexibly along the tunnel extension direction to realize the overall position adjustment of the device in the construction area.
[0026] Furthermore, the annular guide rail support 101 includes two parallel and oppositely arranged annular tracks 102 and an intermediate reinforcing crossbeam structure 103 connecting the two annular tracks 102, thereby forming a closed annular frame.
[0027] Finally, the cross-section of the annular track 102 is concave. In this structure, the sides of the track are concave.
[0028] When using this utility model to solve the problems of unstable support, low roundness adjustment accuracy, and insufficient construction efficiency in the secondary lining assembly of tunnels and mines, the rounding platform device in the structure of this application is set on both the front and rear sides, with 6 hydraulic rounding devices 301 on each side, divided into 3 groups. The front side is the side of the hydraulic rounding device 301 that plays a balancing support role, and the rear side is the side of the hydraulic rounding device 301 that supports the lining. Each group of two hydraulic rounding devices 301 supports one lining. The front hydraulic rounding device 301 operates first, transitioning from a retracted state to an operational state, supporting the inner side of the tube segment and providing balance. The support liner is moved to a suitable position by a multi-degree-of-freedom suction cup device. The rear hydraulic rounding device 301 then operates, supporting both sides of the liner. The roundness of a single liner is adjusted by adjusting the height of the hydraulic rounding device 301. Subsequently, the suction cup device operates, moving the second liner to a suitable position and engaging it with the first liner. The rear hydraulic rounding device 301 then supports and adjusts the roundness of the liner. Afterward, the suction cup device operates, moving the third liner to a suitable position and engaging it with the second liner. Finally, the worker connects the connector to adjust the overall roundness of the three liners. This application achieves dual stable support for the pipe segments and linings, precise multi-dimensional roundness adjustment, and efficient collaborative operation during the lining assembly process through an integrated "support-positioning-adjustment" design. Compared with traditional processes, it improves construction efficiency by more than 50%, with a single lining piece roundness error of ≤2mm and an overall roundness error of ≤5mm. This significantly improves the construction quality and safety of secondary lining in tunnels and mines. During construction, a small-space point-type rounding device is used to adjust the roundness of the secondary lining. After the roundness is adjusted to the correct position, it is used in conjunction with a connector to ensure that the inner roundness of the secondary lining meets the actual requirements. At the same time, the two hydraulic rounding devices 301 on both sides have different functions: one side mainly supports the pipe segments and plays a balancing role, while the other side mainly supports the pipe segments and adjusts the inner roundness. This solves the problems of unstable support, low roundness adjustment accuracy, and insufficient construction efficiency in the assembly of secondary linings in tunnels and mines.
[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A device for rounding secondary lining plates in tunnels and mines, comprising a traveling assembly (201), characterized in that: A ring-shaped guide rail support (101) is provided above the walking component (201). A hydraulic rounding device (301) is fixed on the annular track (102) of the annular guide rail support (101). The hydraulic rounding device (301) is arranged in an asymmetrical layout at intervals on the front and rear sides of the annular track (102). There are 6 hydraulic rounding devices (301) on each side and they are divided into 3 groups. The hydraulic rounding device (301) on the front side is symmetrically supported on the inner side of the assembled pipe segment by hydraulic cylinders or rigid support arms. During the rounding process, it offsets the radial force applied by the liner plate, prevents the pipe segment from shifting or deforming due to uneven force, and ensures construction safety. The hydraulic rounding device (301) on the rear side acts directly on both sides of the liner to be rounded by telescopic support arms or clamping cylinders. Through the coordinated action of multiple sets of hydraulic cylinders, the curvature of a single liner is precisely adjusted to ensure that the roundness error of the liner and the design circumference is ≤5mm, and finally achieves the overall roundness requirement of the secondary lining. The hydraulic rounding device (301) includes a base (302), a hydraulic column (303), a connecting rod (304), a shield beam (305), a top beam (306), a middle beam (307), a front beam (308), a middle telescopic cylinder (309), a front telescopic cylinder (310), and an arc-shaped plate (311). The base (302) is hinged to the bottom end of the hydraulic column (303). The top end of the telescopic shaft of the hydraulic column (303) is hinged to the top beam (306). The shield beam (305) is hinged to the rear end of the top beam (306). The shield beam (305) is connected to the base (302). The top beam (306) is hinged to the bottom of the intermediate telescopic cylinder (309) via the connecting rod (304). The top of the telescopic shaft of the intermediate telescopic cylinder (309) is hinged to the intermediate beam (307). The intermediate beam (307) is hinged to the bottom of the front telescopic cylinder (310). The top of the telescopic shaft of the front telescopic cylinder (310) is hinged to the front beam (308). The arc-shaped plate (311) is installed on the top beam (306), the intermediate beam (307) and the front beam (308) and fits against the lining to increase the lining support contact surface.
2. The tunnel and mine secondary lining plate rounding device as described in claim 1, characterized in that: The walking assembly (201) includes a drive wheel set (202), a driven wheel set (203), and a walking drive component (204). The drive wheel set (202) has a locking function. The drive wheel set (202) and the driven wheel set (203) are respectively connected to the bottom sides of the annular guide rail support (101), and the outer periphery of the wheel is in rolling contact with the track beam on the tunnel / mine floor. The walking drive component (204) includes a walking motor and a reducer. Its output end is connected to the wheel axle of the drive wheel set (202) and is used to drive the annular guide rail support (101) to move along the tunneling direction.
3. The tunnel and mine secondary lining plate rounding device as described in claim 2, characterized in that: The walking component (201) is in direct contact with the tunnel / mine ground and moves flexibly along the tunnel extension direction, thereby realizing the overall position adjustment of the device in the construction area.
4. The tunnel and mine secondary lining plate rounding device as described in claim 1, characterized in that: The annular guide rail support (101) includes two parallel and oppositely arranged annular rails (102) and an intermediate reinforcing beam structure (103) connecting the two annular rails (102), thereby forming a closed annular frame.
5. The tunnel and mine secondary lining plate rounding device as described in claim 4, characterized in that... : The cross-section of the annular track (102) is concave.