A steel lining installation machine for repairing the top and side structures of subway tunnels

Abstract

The present invention discloses a steel lining installation machine for repairing the top and side structures of subway tunnels, and belongs to the technical field of repairing the top and side structures of tunnels in shield-bored subway construction. The technical solution of the present invention mainly includes a base system, a lifting system, a hydraulic system, an electrical system, a steel lining assembly and a steel lining installation system. The present invention is a vehicle-mounted mobile device, which is driven by a traction locomotive, and the working device adopts a flatbed truck with a hydraulic system, which does not need to be configured with a power unit and a hydraulic pump station, saving production costs; mechanized operation is adopted, the labor intensity of workers is low, and the construction efficiency is high; an integrated control console is adopted, which is simple and convenient to operate, safe and reliable, and has high construction efficiency; a hydraulic drive method is adopted, and the installation and positioning are accurate and reliable, the construction quality is high, and the construction environment is zero-pollution.

Description

Technical Field

[0001] The invention belongs to the technical field of repairing the top and side structures of a tunnel in shield-driven subway construction, and in particular relates to a steel lining installation machine for repairing the top and side structures of a subway tunnel. Background Art

[0002] At present, in the construction of subway tunnels, the repair of defects such as tunnel leakage and cracks mainly relies on loaders, fall chains and manpower for construction work. Traditional defect repair and remediation methods have great safety hazards, poor construction quality, low construction efficiency, and high labor intensity of construction workers. In view of the defects such as tunnel leakage and cracks that appear in the construction of subway tunnels, it is necessary to develop a steel lining installation machine for repairing the top and side structures of subway tunnels to reduce the gap between the steel lining and the tunnel concrete segments and carry out reinforcement treatment. Summary of the invention

[0003] In order to solve the above-mentioned technical problems in subway tunnel construction, the present invention provides a steel lining installation machine for repairing the top and side structures of subway tunnels. The steel lining installation machine for repairing the top and side structures of subway tunnels is developed in response to the current situation of defects such as water leakage and cracks on the top and sides of subway tunnels. The machine is used to effectively reduce the gap between the steel lining and the tunnel concrete segments.

[0004] According to the design requirements, the annular steel lining used for the repair of the top and side structures of the subway tunnel is divided into blocks A, B and C. The prepared annular steel lining blocks A, B and C are placed on a flatbed truck, and the flatbed truck is towed to the steel lining installation position by a rail traction locomotive. Then the preset lifting points D and E on the steel lining are respectively connected to the lifting arm ends preset on the flatbed truck. The lifting device lifts the steel lining and places it on the steel lining installation machine. The steel lining blocks A, C and B are installed separately by the steel lining installation machine to ensure that the gap between the steel lining and the surface of the tunnel concrete segment is minimized, and reinforcement treatment is performed.

[0005] The present invention adopts the following technical solution to solve the above technical problems: a steel lining installation machine for repairing the top and side structures of a subway tunnel, characterized by comprising a base system, a lifting system, a hydraulic system, an electrical system, a steel lining assembly and a steel lining installation system;

[0006] The base system is divided into two parts, the left and right parts, and the base system includes a lifting outer cover, a lifting cylinder fixing seat, a bottom crossbeam, a transverse outer cover leg, a transverse outer cover, a telescopic inner cover and a telescopic outer cover, wherein the lifting cylinder fixing seat is welded to the lifting outer cover, two lifting outer covers are welded to the bottom crossbeam as a group, four transverse outer cover legs are welded to the bottom crossbeam, four transverse outer covers are respectively welded to four transverse outer cover legs, the telescopic inner cover is welded to the transverse outer cover, and the telescopic outer cover is arranged outside the telescopic inner cover;

[0007] The lifting system comprises a lifting inner sleeve, a second lifting cylinder fixing seat and a fixing bracket, wherein the second lifting cylinder fixing seat is welded to the outer side of the upper part of the lifting inner sleeve, the fixing bracket is welded to the lifting inner sleeve and the second lifting cylinder fixing seat to form a whole, the fixing bracket is welded to form a frame beam structure by a bottom cross beam, an intermediate connecting beam, an upper cross beam and a bottom longitudinal beam, the upper cross beam is welded to the lifting inner sleeve, and the support arm is connected to the ear plate on the fixing bracket;

[0008] The hydraulic system includes a vehicle-mounted hydraulic pump station and a hydraulic oil tank, a hydraulic motor with brakes, a lifting cylinder, a base positioning cylinder, an auxiliary cylinder and a transverse cylinder, wherein the vehicle-mounted hydraulic oil tank provides hydraulic oil for the hydraulic system, and the vehicle-mounted hydraulic pump station provides motive power for the entire hydraulic system. The hydraulic oil tank is connected to the hydraulic pump station through a pipeline, and the hydraulic pump station is connected to the lifting cylinder, the base positioning cylinder, the auxiliary cylinder, the transverse cylinder and the hydraulic motor with brakes respectively after the control valve to provide hydraulic power, the lifting cylinder is respectively connected to the lifting cylinder fixing seat 1 and the lifting cylinder fixing seat 2 through a pin shaft, the base positioning cylinder is respectively connected to the base positioning seat and the ear plate on the bottom cross beam, the base positioning seat is welded to the flatbed of the flatbed car to form a fixing device, one end of the auxiliary cylinder is connected to the ear plate on the fixed bracket through a pin shaft, the other end of the auxiliary cylinder is connected to the ear plate on the bottom longitudinal beam through a pin shaft, the upper end of the transverse cylinder is connected to the connecting ear plate at the lower part of the bottom longitudinal beam through a pin shaft, and the lower end is connected to the B connecting ear plate or the C connecting ear plate on the transverse inner sleeve as needed;

[0009] The steel lining assembly includes a steel lining A block, a steel lining B block and a steel lining C block;

[0010] The steel liner installation system includes a reducer, a guide sprocket, a tensioning sprocket, a support wheel, a chain, a bracket and a connecting ear plate, wherein the reducer is connected to the bottom cross beam by bolts, the hydraulic motor with brake is installed on the reducer, the guide sprocket is welded to the bracket, the tensioning sprocket is connected to the bracket by tensioning bolts, the support wheels are evenly arranged on the fixed track on the top of the bracket, the chain is connected to the D point of the connecting ear plate by a pin shaft, and then connected to the E point of the connecting ear plate by the guide sprocket, the reducer, the tensioning sprocket, the guide sprocket, the bracket and the connecting ear plate by a pin shaft in sequence to form a closed transmission structure;

[0011] The electrical system includes a motor, a control cabinet and cable auxiliary facilities.

[0012] The operation method of the steel lining installation machine for repairing the top and side structures of a subway tunnel of the present invention is characterized in that the specific process is as follows: before work, first, start the on-board hydraulic pump station, operate the base positioning cylinder, and make the steel lining installation machine accurately located directly below the installation position; secondly, check that the lifting system is lowered to the lowest position, that is, the distance H between the steel lining assembly and the concrete segment at the top of the tunnel, and the steel lining installation system returns to the initial middle position;

[0013] During operation, step 1, the lifting points D and E of the steel liner block A are respectively connected to the lifting arm ends on the flatbed truck with pins, and the lifting device lifts the steel liner block A and places it on the support wheel of the steel liner installation system;

[0014] Step 2, connect the connecting ear plate on the steel liner installation system to the lifting points D and E of the steel liner A block;

[0015] Step 3, operate the lifting cylinder to extend until the steel liner A block located on the lifting system reaches the distance A of the concrete segment at the top of the tunnel;

[0016] Step 4, start the hydraulic motor with brake to make the steel lining installation system rotate counterclockwise, and the steel lining block A rotates along the distance A from the tunnel concrete surface with the tunnel center O as the center; then operate the auxiliary cylinder to extend, so that the support arm extends to cooperate with the support steel lining block A to prevent the steel lining block A from sagging and deformation; then operate the transverse cylinder to retract until the transverse inner sleeve is completely retracted to the middle position; the steel lining installation system continues to rotate counterclockwise, and the steel lining block A continues to rotate along the distance A from the tunnel concrete surface until it rotates from the starting middle position to a°, and remove the connecting pin shaft at point D;

[0017] Step 5: The lower end of the lateral cylinder is connected to the B connecting ear plate through a pin shaft, and the lateral cylinder is extended to extend the lateral inner sleeve toward the steel liner block A, so that the steel liner block A rotates a distance B around point E on the steel liner block A as the center of the circle to point F and is pressed against the surface of the concrete segment on the side of the tunnel, thereby fixing the steel liner block A;

[0018] Step 6, continue to operate the auxiliary oil cylinder to extend the support arm, so that the steel liner block A rotates with point F as the center of the circle, and after point E moves a distance G, the top of the steel liner block A is close to the surface of the tunnel concrete segment;

[0019] Step 7, temporarily fixing the steel liner A block and the concrete segment with expansion bolts through the connection holes pre-set on the steel liner A block and the concrete segment;

[0020] Step 8: Operate the lateral oil cylinder to retract until the lateral inner sleeve is completely retracted to the middle position, remove the connecting pin between the telescopic outer sleeve and the lateral oil cylinder, and manually retract the telescopic outer sleeve to the outside to the shortest position;

[0021] Step 9, operate the auxiliary oil cylinder to fully retract the support arm;

[0022] Step 10, start the hydraulic motor with brake, and drive the chain to rotate the steel lining installation system clockwise by a° to the initial position, i.e., the middle position;

[0023] Step 11, operate the lifting cylinder to retract until the lifting system is completely lowered to the lowest position;

[0024] At this point, the installation of steel lining block A is completed;

[0025] Similarly, operate in the reverse direction and install the steel liner block B. When repeating step 5 to install the steel liner block B, the lower end of the traverse cylinder is connected to the C connecting ear plate through a pin shaft;

[0026] Finally, install the steel liner C block. Step 1: connect the lifting points D and E of the steel liner C block to the lifting arm ends on the flatbed truck with pins respectively. The lifting device lifts the steel liner C block and places it on the support wheel of the steel liner installation system.

[0027] Step 2, connect the connecting ear plate on the steel liner installation system to the lifting points D and E of the steel liner C block;

[0028] Step 3, operate the lifting cylinder to extend until the steel liner C block on the lifting system reaches the surface of the concrete segment at the top of the tunnel and is in close contact with the surface of the concrete segment at the top of the tunnel;

[0029] Step 4, temporarily fixing the steel liner C block and the concrete segment with expansion bolts through the pre-set connection holes on the steel liner C block and the concrete segment;

[0030] Step 5, operate the lifting cylinder to retract until the lifting system is completely lowered to the lowest position;

[0031] At this point, the steel lining C block is installed;

[0032] At this point, the installation of one ring of steel lining is completed;

[0033] After the steel lining assembly is installed, weld the connection between steel lining block A and steel lining block B, weld the connection between steel lining block B and steel lining block C, and finally use chemical bolts to firmly connect steel lining block A, steel lining block B, and steel lining block C.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention is a vehicle-mounted mobile device that is driven by a traction locomotive; the working device uses a hydraulic system on a flatbed truck. Therefore, there is no need to configure a power device and a hydraulic pump station, saving production costs;

[0036] 2. The present invention adopts mechanized operation, the labor intensity of workers is low and the construction efficiency is high;

[0037] 3. The present invention adopts an integrated control console, which is simple and convenient to operate, safe and reliable, and has high construction efficiency;

[0038] 4. The present invention adopts hydraulic drive mode, which ensures accurate and reliable installation and positioning, high construction quality and zero pollution to the construction environment;

[0039] 5. The present invention is a steel lining installation machine for repairing the top and side structures of subway tunnels, which is developed to address the current situation of water leakage, cracks and other defects on the top and sides of subway tunnels. It is used to effectively reduce the gap between the steel lining and the tunnel concrete segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1-2 It is the overall arrangement diagram of the present invention;

[0041] Figure 3 It is a block diagram of the steel plate of the present invention;

[0042] Figure 4-5 It is a front view and a side view of the present invention;

[0043] Figure 6-7 It is a diagram of the lifting system and steel lining installation system of the present invention;

[0044] Figure 8-13 It is a working state diagram of the present invention.

[0045] In the figure: 1-base system, 2-lifting system, 3-hydraulic system, 4-electrical system, 5-steel lining assembly, 6-base positioning seat, 7-lifting jacket, 8-lifting cylinder fixing seat 1, 9-bottom crossbeam, 10-transverse jacket support leg, 11-transverse jacket, 12-telescopic inner jacket, 13-telescopic jacket, 14-lifting inner jacket, 15-lifting cylinder fixing seat 2, 16-fixed bracket, 17-reducer, 18-transverse inner jacket, 19-support arm, 20-with brake Hydraulic motor, 21-lifting cylinder, 22-base positioning cylinder, 23-auxiliary cylinder, 24-transverse cylinder, 25-bottom longitudinal beam, 26-steel lining installation system, 27-steel lining A block, 28-steel lining B block, 29-steel lining C block, 30-guide sprocket, 31-tensioning sprocket, 32-support wheel, 33-chain, 34-bracket, 35-motor, 36-control cabinet, 37-connecting ear plate, 38-bottom cross beam, 39-middle connecting beam, 40-upper cross beam. DETAILED DESCRIPTION

[0046] The technical scheme of the present invention is described in detail in conjunction with the accompanying drawings. According to the design requirements, the annular steel lining used for the repair of the side and top structures of the subway tunnel is divided into block A, block C and block B. The prepared annular steel lining blocks A, block C and block B are respectively placed on a flatbed truck, and the flatbed truck is towed to the steel lining installation position by a rail traction locomotive. Then, the preset lifting points D and E on the steel lining are respectively connected to the lifting arm ends preset on the flatbed truck. The lifting device lifts the steel lining and places it on the steel lining installation machine. The steel lining installation machine installs the steel lining blocks in the order of block A, block C and block B to ensure that the interval between the steel lining and the surface of the tunnel concrete segment is minimized, and reinforcement treatment is performed.

[0047] A steel lining installation machine for repairing the top and side structures of a subway tunnel, comprising a base system 1, a lifting system 2, a hydraulic system 3, an electrical system 4, a steel lining assembly 5 and a steel lining installation system 26;

[0048] The base system 1 is divided into two parts, the left and right parts, and the base system 1 includes a lifting jacket 7, a lifting cylinder fixing seat 8, a bottom crossbeam 9, a transverse jacket leg 10, a transverse jacket 11, a telescopic inner jacket 12 and a telescopic jacket 13, wherein the lifting cylinder fixing seat 8 is welded to the lifting jacket 7, two lifting jackets are welded to the bottom crossbeam 9 as a group, four transverse jacket legs 10 are welded to the bottom crossbeam 9, four transverse jackets 11 are respectively welded to four transverse jacket legs 10, the telescopic inner jacket 12 is welded to the transverse jacket 11, and the telescopic jacket 13 is arranged outside the telescopic inner jacket 12;

[0049] The lifting system 2 includes a lifting inner sleeve 14, a lifting cylinder fixing seat 15 and a fixing bracket 16. The lifting cylinder fixing seat 15 is welded to the outer side of the upper part of the lifting inner sleeve 14. The fixing bracket 16 is welded to the lifting inner sleeve 14 and the lifting cylinder fixing seat 15 to form a whole. The fixing bracket 16 is welded to form a frame beam structure by a bottom cross beam 38, an intermediate connecting beam 39, an upper cross beam 40 and a bottom longitudinal beam 25. The upper cross beam 40 is welded to the lifting inner sleeve 14, and the support arm 19 is connected to the ear plate on the fixing bracket 16.

[0050] The hydraulic system 3 includes a vehicle-mounted hydraulic pump station and a hydraulic oil tank, a hydraulic motor with brakes 20, a lifting cylinder 21, a base positioning cylinder 22, an auxiliary cylinder 23 and a transverse cylinder 24, wherein the vehicle-mounted hydraulic oil tank provides hydraulic oil for the hydraulic system, and the vehicle-mounted hydraulic pump station provides motive power for the entire hydraulic system. The hydraulic oil tank is connected to the hydraulic pump station through a pipeline, and the hydraulic pump station is connected to the lifting cylinder 21, the base positioning cylinder 22, the auxiliary cylinder 23, the transverse cylinder 24 and the hydraulic motor with brakes 20 through a control valve to provide hydraulic power. The lifting cylinder 21 is connected to the lifting oil tank respectively. The cylinder fixing seat 1 8 and the lifting cylinder fixing seat 2 15 are connected by a pin shaft, the base positioning cylinder 22 is respectively connected to the base positioning seat 6 and the ear plate on the bottom cross beam 9, the base positioning seat 6 is welded to the flatbed of the flatbed car to form a fixing device, one end of the auxiliary cylinder 23 is connected to the ear plate on the fixed bracket 16 by a pin shaft, and the other end of the auxiliary cylinder 23 is connected to the ear plate on the bottom longitudinal beam 25 by a pin shaft, the upper end of the traverse cylinder 24 is connected to the connecting ear plate at the lower part of the bottom longitudinal beam 25 by a pin shaft, and the lower end is connected to the B connecting ear plate or the C connecting ear plate on the traverse inner sleeve 18 as needed;

[0051] The steel liner assembly 5 includes a steel liner A block 27, a steel liner B block 28 and a steel liner C block 29;

[0052] The steel liner installation system 26 includes a reducer 17, a guide sprocket 30, a tensioning sprocket 31, a support wheel 32, a chain 33, a bracket 34 and a connecting ear plate 37, wherein the reducer 17 is connected to the bottom cross beam 38 by bolts, the brake hydraulic motor 20 is connected to the reducer 17, the guide sprocket 30 is welded to the bracket 34, the tensioning sprocket 31 is connected to the bracket 34 by tensioning bolts, the support wheel 32 is evenly arranged on the top fixed track of the bracket 34, the chain 33 is connected to the point D on the connecting ear plate 37 by a pin, and then connected to the point E on the connecting ear plate 37 by a pin in sequence through the guide sprocket 30, the reducer 17, the tensioning sprocket 31, the guide sprocket 30, the bracket 34 and the connecting ear plate 37, to form a closed transmission structure;

[0053] The electrical system 4 includes a motor 35, a control cabinet 36 and cable auxiliary facilities.

[0054] The operation method of the steel lining installation machine for repairing the side and top structures of a subway tunnel of the present invention is characterized in that the specific process is as follows: before working, first, start the on-board hydraulic pump station, operate the base positioning cylinder 22, and make the steel lining installation machine accurately located directly below the installation position; secondly, check and lower the lifting system 2 to the lowest position until the distance H between the steel lining assembly 5 and the concrete segment at the top of the tunnel is reached, and the steel lining installation system 26 returns to the initial middle position;

[0055] During operation, step 1, the lifting points D and E of the steel liner A block 27 are respectively connected to the lifting arm ends on the flatbed truck with pins, and the lifting device lifts the steel liner A block 27 and places it on the support wheel 32 of the steel liner installation system 26;

[0056] Step 2, connect the connecting ear plate 37 on the steel liner mounting system 26 to the lifting points D and E of the steel liner A block 27;

[0057] Step 3, operate the lifting cylinder 21 to extend until the steel liner A block 27 located on the lifting system 2 reaches the distance A of the concrete segment at the top of the tunnel;

[0058] Step 4, start the hydraulic motor 20 with brakes to rotate the steel liner installation system 26 counterclockwise, and the steel liner A block 27 rotates along the distance A from the tunnel concrete surface with the tunnel center O as the center of the circle; then operate the auxiliary cylinder 23 to extend, so that the support arm 19 extends to cooperate with the support of the steel liner A block 27 to prevent the steel liner A block 27 from sagging and deformation; then operate the transverse cylinder 24 to retract until the transverse inner sleeve 18 is completely retracted to the middle position; the steel liner installation system 26 continues to rotate counterclockwise, and the steel liner A block 27 continues to rotate along the distance A from the tunnel concrete surface until it rotates from the starting middle position to a°, and remove the connecting pin shaft at point D;

[0059] Step 5: The lower end of the lateral cylinder 24 is connected to the B connecting ear plate through a pin shaft, and the lateral cylinder 24 is operated to extend, and the lateral inner sleeve 18 extends toward the steel liner A block 27, so that the steel liner A block 27 rotates a distance B with point E on the steel liner A block 27 as the center of the circle to point F to be close to the surface of the concrete segment on the side of the tunnel, and the steel liner A block 27 is fixed;

[0060] Step 6, continue to operate the auxiliary oil cylinder 23 to extend the support arm 19, so that the steel liner A block 27 rotates with point F as the center of the circle, and after point E moves a distance G, the top of the steel liner A block 27 is close to the surface of the tunnel concrete segment;

[0061] Step 7, temporarily fixing the steel liner A block 27 and the concrete segment with expansion bolts through the connection holes pre-set on the steel liner A block 27 and the concrete segment;

[0062] Step 8, operate the lateral cylinder 24 to retract until the lateral inner sleeve 18 is completely retracted to the middle position, remove the connecting pin between the telescopic outer sleeve 13 and the lateral cylinder 24, and manually retract the telescopic outer sleeve 13 to the outside to the shortest position;

[0063] Step 9, operate the auxiliary oil cylinder 23 to fully retract the support arm 19;

[0064] Step 10, start the braked hydraulic motor 20, and drive the chain 33 to rotate the steel liner installation system 26 clockwise by a° to the initial position, i.e., the middle position;

[0065] Step 11, operate the lifting cylinder 21 to retract until the lifting system 2 is completely lowered to the lowest position;

[0066] At this point, the steel liner A block 27 is installed;

[0067] Similarly, reverse the operation to install the steel liner B block 29. When repeating step 5 to install the steel liner B block 29, the lower end of the traverse cylinder 24 is connected to the C connecting ear plate through a pin shaft;

[0068] Finally, the steel liner C block 28 is installed. Step 1: The lifting points D and E of the steel liner C block 28 are respectively connected to the lifting arm ends on the flatbed truck with pins, and the lifting device lifts the steel liner C block 28 and places it on the support wheel 32 of the steel liner installation system 26;

[0069] Step 2, connect the connecting ear plate 37 on the steel liner mounting system 26 to the lifting points D and E of the steel liner C block 28;

[0070] Step 3, operate the lifting cylinder 21 to extend until the steel liner C block 28 located on the lifting system 2 reaches the surface of the concrete segment at the top of the tunnel and is in close contact with the surface of the concrete segment at the top of the tunnel;

[0071] Step 4, temporarily fixing the steel liner C block 28 and the concrete segment with expansion bolts through the connection holes pre-set on the steel liner C block 28 and the concrete segment;

[0072] Step 5, operate the lifting cylinder 21 to retract until the lifting system 2 is completely lowered to the lowest position;

[0073] At this point, the steel liner C block 28 is installed;

[0074] At this point, the installation of one ring of steel lining is completed;

[0075] After the steel lining assembly 5 is installed, the connection between the steel lining block A 27 and the steel lining block B 28 is welded, and the connection between the steel lining block B 28 and the steel lining block C 29 is welded. Finally, chemical bolts are used to firmly connect the steel lining block A 27, the steel lining block B 28, and the steel lining block C 29.

[0076] The above embodiments describe the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the scope of the principles of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of protection of the present invention.

Claims

1. A steel lining installation machine for repairing the top and side structures of subway tunnels, characterized in that Including base system, lifting system, hydraulic system, electrical system, steel lining assembly and steel lining installation system; The base system is divided into two parts, the left and right parts, and the base system includes a lifting outer cover, a lifting cylinder fixing seat, a bottom crossbeam, a transverse outer cover leg, a transverse outer cover, a telescopic inner cover and a telescopic outer cover, wherein the lifting cylinder fixing seat is welded to the lifting outer cover, two lifting outer covers are welded to the bottom crossbeam as a group, four transverse outer cover legs are welded to the bottom crossbeam, four transverse outer covers are respectively welded to four transverse outer cover legs, the telescopic inner cover is welded to the transverse outer cover, and the telescopic outer cover is arranged outside the telescopic inner cover; The lifting system comprises a lifting inner sleeve, a second lifting cylinder fixing seat and a fixing bracket, wherein the second lifting cylinder fixing seat is welded to the outer side of the upper part of the lifting inner sleeve, the fixing bracket is welded to the lifting inner sleeve and the second lifting cylinder fixing seat to form a whole, the fixing bracket is welded to form a frame beam structure by a bottom cross beam, an intermediate connecting beam, an upper cross beam and a bottom longitudinal beam, the upper cross beam is welded to the lifting inner sleeve, and the support arm is connected to the ear plate on the fixing bracket; The hydraulic system includes a vehicle-mounted hydraulic pump station and a hydraulic oil tank, a hydraulic motor with brakes, a lifting cylinder, a base positioning cylinder, an auxiliary cylinder and a transverse cylinder, wherein the vehicle-mounted hydraulic oil tank provides hydraulic oil for the hydraulic system, and the vehicle-mounted hydraulic pump station provides motive power for the entire hydraulic system. The hydraulic oil tank is connected to the hydraulic pump station through a pipeline, and the hydraulic pump station is connected to the lifting cylinder, the base positioning cylinder, the auxiliary cylinder, the transverse cylinder and the hydraulic motor with brakes respectively after the control valve to provide hydraulic power, the lifting cylinder is respectively connected to the lifting cylinder fixing seat 1 and the lifting cylinder fixing seat 2 through a pin shaft, the base positioning cylinder is respectively connected to the base positioning seat and the ear plate on the bottom cross beam, the base positioning seat is welded to the flatbed of the flatbed car to form a fixing device, one end of the auxiliary cylinder is connected to the ear plate on the fixed bracket through a pin shaft, the other end of the auxiliary cylinder is connected to the ear plate on the bottom longitudinal beam through a pin shaft, the upper end of the transverse cylinder is connected to the connecting ear plate at the lower part of the bottom longitudinal beam through a pin shaft, and the lower end is connected to the B connecting ear plate or the C connecting ear plate on the transverse inner sleeve as needed; The steel lining assembly includes a steel lining A block, a steel lining B block and a steel lining C block; The steel liner installation system includes a reducer, a guide sprocket, a tensioning sprocket, a support wheel, a chain, a bracket and a connecting ear plate, wherein the reducer is connected to the bottom cross beam by bolts, the brake hydraulic motor is connected to the reducer, the guide sprocket is welded to the bracket, the tensioning sprocket is connected to the bracket by tensioning bolts, the support wheels are evenly arranged on the fixed track on the top of the bracket, the chain is connected to point D on the connecting ear plate by a pin, and then connected to point E of the connecting ear plate through the guide sprocket, the reducer, the tensioning sprocket, the guide sprocket, the bracket and the connecting ear plate by a pin to form a closed transmission structure; The electrical system includes a motor, a control cabinet and cable auxiliary facilities.

2. A method for operating the steel lining installation machine for repairing the side and top structures of a subway tunnel as claimed in claim 1, characterized in that The specific process is as follows: before work, first, start the on-board hydraulic pump station and operate the base positioning cylinder to accurately position the steel lining installation machine directly below the installation position; second, check that the lifting system is lowered to the lowest position until the distance between the steel lining assembly and the concrete segment at the top of the tunnel is H, and the steel lining installation system returns to the initial middle position; During operation, step 1, the lifting points D and E of the steel liner block A are respectively connected to the lifting arm ends on the flatbed truck with pins, and the lifting device lifts the steel liner block A and places it on the support wheel of the steel liner installation system; Step 2, connect the connecting ear plate on the steel liner installation system to the lifting points D and E of the steel liner A block; Step 3, operate the lifting cylinder to extend until the steel liner A block located on the lifting system reaches the distance A of the concrete segment at the top of the tunnel; Step 4, start the hydraulic motor with brake to make the steel lining installation system rotate counterclockwise, and the steel lining block A rotates along the distance A from the tunnel concrete surface with the tunnel center O as the center; then operate the auxiliary cylinder to extend, so that the support arm extends to cooperate with the support steel lining block A to prevent the steel lining block A from sagging and deformation; then operate the transverse cylinder to retract until the transverse inner sleeve is completely retracted to the middle position; the steel lining installation system continues to rotate counterclockwise, and the steel lining block A continues to rotate along the distance A from the tunnel concrete surface until it rotates from the starting middle position to a°, and remove the connecting pin shaft at point D; Step 5: The lower end of the lateral cylinder is connected to the B connecting ear plate through a pin shaft, and the lateral cylinder is extended to extend the lateral inner sleeve toward the steel liner block A, so that the steel liner block A rotates a distance B around point E on the steel liner block A as the center of the circle to point F and is pressed against the surface of the concrete segment on the side of the tunnel, thereby fixing the steel liner block A; Step 6, continue to operate the auxiliary oil cylinder to extend the support arm, so that the steel liner block A rotates with point F as the center of the circle, and after point E moves a distance G, the top of the steel liner block A is close to the surface of the tunnel concrete segment; Step 7, temporarily fixing the steel liner A block and the concrete segment with expansion bolts through the connection holes pre-set on the steel liner A block and the concrete segment; Step 8: Operate the lateral oil cylinder to retract until the lateral inner sleeve is completely retracted to the middle position, remove the connecting pin between the telescopic outer sleeve and the lateral oil cylinder, and manually retract the telescopic outer sleeve to the outside to the shortest position; Step 9, operate the auxiliary oil cylinder to fully retract the support arm; Step 10, start the hydraulic motor with brake, and drive the chain to rotate the steel lining installation system clockwise by a° to the initial position, i.e., the middle position; Step 11, operate the lifting cylinder to retract until the lifting system is completely lowered to the lowest position; At this point, the installation of steel lining block A is completed; Similarly, operate in the reverse direction and install the steel liner block B. When repeating step 5 to install the steel liner block B, the lower end of the traverse cylinder is connected to the C connecting ear plate through a pin shaft; Finally, install the steel liner C block. Step 1: connect the lifting points D and E of the steel liner C block to the lifting arm ends on the flatbed truck with pins respectively. The lifting device lifts the steel liner C block and places it on the support wheel of the steel liner installation system. Step 2, connect the connecting ear plate on the steel liner installation system to the lifting points D and E of the steel liner C block; Step 3, operate the lifting cylinder to extend until the steel liner C block on the lifting system reaches the surface of the concrete segment at the top of the tunnel and is in close contact with the surface of the concrete segment at the top of the tunnel; Step 4, temporarily fixing the steel liner C block and the concrete segment with expansion bolts through the pre-set connection holes on the steel liner C block and the concrete segment; Step 5, operate the lifting cylinder to retract until the lifting system is completely lowered to the lowest position; At this point, the steel lining C block is installed; At this point, the installation of one ring of steel lining is completed; After the steel lining assembly is installed, weld the connection between steel lining block A and steel lining block B, weld the connection between steel lining block B and steel lining block C, and finally use chemical bolts to firmly connect steel lining block A, steel lining block B, and steel lining block C.

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