Transverse translation construction method for closed underground small-space shield tunneling machine

Abstract

The invention relates to the technical field of tunnel construction, in particular to a closed underground small-space shield tunneling machine transverse translation construction method which comprises the following steps that S1, a shield tunneling machine is fixed; s2, the receiving bracket is arranged in a sliding mode; s3, transversely moving the shield tunneling machine; s4, completing placement of the shield tunneling machine; and S5, translating the rear matched trailer. The shield tunneling machine is moved to the receiving bracket and welded and fixed, then the receiving bracket is lifted by a certain height through the multiple sets of lifting assemblies, then the transverse moving steel rails are laid at the bottom of the receiving bracket, then the receiving bracket is placed on the transverse moving steel rails through the lifting hydraulic cylinders, and the pushing hydraulic cylinders are fixedly installed on the transverse moving steel rails; the shield tunneling machine slides to the designated position along the transverse moving steel rails by pushing the hydraulic cylinders to be matched with the steel supports of different lengths, the multiple sets of transverse moving steel rails abut against the receiving bracket in a sliding mode, the probability that the shield tunneling machine deviates in the moving process is reduced, and the construction efficiency of transverse moving of the shield tunneling machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a method for lateral translation construction of a shield machine in a closed underground small space. Background Art

[0002] With the development and progress of society, shield machines play an indispensable role in municipal subway construction. Due to the soundness and perfection of urbanization, shield construction in urban areas is often affected by factors such as small sites and severely restricted environment. For this reason, double-line subway construction has emerged, and a shield hoisting shaft is often set up on the left and right lines, which has added certain troubles to engineering construction technicians. At the same time, more and more different shield machine underground lateral translation construction technologies have also emerged.

[0003] At present, the most commonly used method for the translation of shield machines in stations is the steel plate sliding method, which is to cast the bottom plate with concrete and then lay thick steel plates on the bottom plate. Before the tunnel is penetrated, a receiving bracket used to support the bottom of the shield machine is welded and fixed on the thick steel plate. The shield machine is then fixed on the receiving bracket, and then the receiving bracket is cut and made to slide on the thick steel plate. Then, a hydraulic cylinder and its bracket are welded on the thick steel plate, and the receiving bracket and its shield machine are pushed to move horizontally by the hydraulic cylinder. Finally, the hydraulic cylinder and its bracket are continuously cut and re-welded to change the position of the hydraulic cylinder, and finally the receiving bracket and its shield machine are moved horizontally to the designated position.

[0004] However, due to the high friction coefficient between the shield machine and the thick steel plate during transverse movement, and the continuous cutting and welding of the hydraulic cylinder and its bracket, the welding environment is poor in the underground space, resulting in low welding quality, which ultimately causes the shield machine to easily shift during movement and requires subsequent angle adjustment. At the same time, the laying and subsequent disassembly of thick steel plates are relatively difficult, which greatly reduces the construction efficiency of the transverse movement of the shield machine. Summary of the invention

[0005] In order to reduce the probability of deviation during the movement of the shield machine and improve the construction efficiency of the lateral movement of the shield machine, the present application provides a lateral translation construction method for a shield machine in a closed underground small space.

[0006] The present application provides a closed underground small space shield machine lateral translation construction method, which adopts the following technical solution: A closed underground small space shield machine lateral translation construction method, comprising the following steps: S1. Fixing the shield machine: a receiving bracket is set at the starting point of the bottom plate, and then the shield machine is moved to the designated position of the receiving bracket and locked with the receiving bracket; S2, receiving bracket sliding setting: the receiving bracket is lifted to a certain height by a lifting assembly, and then a transverse rail is laid at the bottom of the receiving bracket, and the lifting assembly places the receiving bracket on the transverse rail and enables the receiving bracket to slide on the transverse rail; S3, shield machine transverse movement: a pushing hydraulic cylinder is arranged on the transverse moving rail, the pushing hydraulic cylinder cooperates with steel supports of different lengths and enables the hydraulic cylinder to push the receiving bracket to move to a designated position along the transverse moving rail; S4, the shield machine is placed: the receiving bracket is lifted to a certain height by the lifting assembly, the transverse rail at the bottom of the receiving bracket is removed, and then the receiving bracket is placed on the designated bottom plate; S5. Translation of the rear supporting trailer: After the shield machine is placed, the rear supporting trailer is driven by an electric hoist to move horizontally along the transverse rail to the designated position.

[0007] By adopting the above technical scheme, the shield machine is moved to the receiving bracket and welded and fixed, and then the receiving bracket is lifted to a certain height by multiple sets of lifting components, and then a transverse rail is laid at the bottom of the receiving bracket, and then the hydraulic cylinder is lifted to place the receiving bracket on the transverse rail, and the pushing hydraulic cylinder is fixedly installed on the transverse rail, and the pushing hydraulic cylinder and steel supports of different lengths cooperate with each other to slide the shield machine along the transverse rail to the specified position, and multiple sets of transverse rails are used to slide and abut against the receiving bracket, so as to reduce the probability of displacement during the movement of the shield machine and improve the construction efficiency of the transverse movement of the shield machine.

[0008] Furthermore, after the pushing hydraulic cylinder pushes the receiving bracket to move and the pushing hydraulic cylinder reaches the maximum stroke, the pushing hydraulic cylinder retracts and a steel support is placed between the pushing hydraulic cylinder and the receiving bracket, and both ends of the steel support are respectively pressed against the pushing hydraulic cylinder and the receiving bracket, and the lengths of the multiple groups of steel supports are different and the lengths are integer multiples of the maximum stroke of the pushing hydraulic cylinder.

[0009] By adopting the above technical solution, the pushing hydraulic cylinder is fixed on the transverse rail, and by replacing steel supports of different lengths between the pushing hydraulic cylinder and the receiving bracket, the receiving bracket can be slowly pushed away from the pushing hydraulic cylinder.

[0010] Furthermore, when the multiple groups of pushing hydraulic cylinders are retracted, a part of the pushing hydraulic cylinders are retracted first, and then a steel support is placed between the retracted pushing hydraulic cylinders and the receiving bracket, and finally the remaining pushing hydraulic cylinders are retracted and a steel support is placed between the pushing hydraulic cylinders and the receiving bracket.

[0011] By adopting the above technical solution, when the pushing hydraulic cylinder retracts, in order to prevent the receiving bracket from slipping and causing the steel support to be unable to be installed, a part of the pushing hydraulic cylinder is retracted first, and then a new steel support is replaced between the pushing hydraulic cylinder and the receiving bracket, supported by the new steel support, and then the remaining pushing hydraulic cylinders are retracted and the remaining steel supports are replaced, so as to improve the accuracy of installation.

[0012] Furthermore, the steel supports of different lengths are composed of different numbers of support members, and the support members include: A supporting steel body, wherein the supporting steel body is slidably arranged on the transverse steel rail; Connecting blocks, two groups of connecting blocks are respectively arranged at two opposite ends of the supporting steel body, and two adjacent supporting steel bodies are tightly connected to each other through the connecting blocks; The limit block has two ends which are locked on adjacent connecting blocks by bolts and slide against the transverse rail. The limit block is used to prevent the two connecting blocks from moving away from the transverse rail.

[0013] By adopting the above technical solution, when the pushing hydraulic cylinder retracts for the first time, the support member is placed between the pushing hydraulic cylinder and the receiving bracket, wherein the connecting block increases the contact area between the supporting steel body and the pushing hydraulic cylinder or the receiving bracket, and each time the subsequent hydraulic cylinder retracts, a group of support members is added between the pushing hydraulic cylinder and the receiving bracket, and the two adjacent support members are fixedly connected by the connecting block, and at the same time, the two groups of support members are pressed against the transverse rail by the limit block, so as to reduce the probability of deformation and arching due to excessive pressure between the two groups of supporting steel bodies.

[0014] Further, a stretching assembly for assisting the receiving bracket to slide on the transverse rail is provided on the side of the receiving bracket away from the pushing hydraulic cylinder, and the stretching assembly includes: A housing, wherein the housing is slidably disposed on the transverse rail; A stretching hydraulic cylinder, wherein the stretching hydraulic cylinder is arranged on the housing and a movable end is connected to the receiving bracket; A clamping hydraulic cylinder is arranged on the housing and is used to clamp the housing on the transverse rail.

[0015] By adopting the above technical scheme, the clamping hydraulic cylinder clamps the shell on the transverse rail and the rope-pulling hydraulic cylinder is in an extended state. When the pushing hydraulic cylinder pushes the receiving bracket to slide, the stretching hydraulic cylinder contracts to assist in pulling the receiving bracket to slide on the transverse rail. At the same time, the strokes of the stretching hydraulic cylinder and the pushing hydraulic cylinder are the same. When the stretching hydraulic cylinder shrinks to the minimum, the clamping hydraulic cylinder releases the transverse rail, and the stretching hydraulic cylinder extends to drive the shell to slide. After the stretching hydraulic cylinder reaches the maximum stroke, the clamping hydraulic cylinder clamps the shell on the transverse rail to achieve long-distance pulling of the receiving bracket.

[0016] Furthermore, the receiving bracket is provided with a lubrication mechanism for reducing the friction coefficient between the receiving bracket and the transverse rail, and the lubrication mechanism includes: An oil supply box, the oil supply box being arranged on the receiving bracket; A clamping plate, the clamping plate is arranged on the receiving bracket and is slidably pressed against the transverse rail, the clamping plate is provided with an oil supply groove, the oil supply groove is communicated with the inside of the oil supply box and discharges the lubricating oil in the oil supply box into between the clamping plate and the transverse rail; A pressurizing component is arranged on the receiving bracket and is used to pressurize the oil supply box. The pressurizing component presses the lubricating oil in the oil supply box into between the clamping plate and the transverse rail through the oil supply groove.

[0017] By adopting the above technical solution, when the receiving bracket slides on the transverse rail, the lubricating oil in the oil supply box is pressed into the gap between the abutment plate and the transverse rail through the oil supply groove by the pressure component, thereby reducing the friction coefficient between the receiving bracket and the transverse rail.

[0018] Further, the pressurizing component comprises: An extrusion plate, which is slidably disposed in the oil supply box and is used to squeeze the lubricating oil in the oil supply box into the oil supply groove; A driving member is arranged on the receiving bracket and is used to drive the extrusion plate to slide in the oil supply box.

[0019] By adopting the above technical solution, the driving member drives the extrusion plate to slide in the oil supply box, thereby pressing the lubricating oil in the oil supply box into the oil supply groove, while increasing the probability of the lubricating oil entering the gap between the abutment plate and the transverse rail.

[0020] Further, the transverse rail comprises: A rail body, which is pre-laid on the bottom plate and is convenient for receiving the lateral movement of the bracket; A first extension section, wherein the first extension section is arranged on a side of the rail body close to the starting point, and the lifting assembly lifts the receiving bracket and the shield machine to a certain height and then lays the first extension section at the starting point; The second extension section is arranged on a side of the rail body away from the first extension section. After the receiving bracket moves to a designated position, the second extension section can be taken out and the receiving bracket can be placed on a designated bottom plate.

[0021] By adopting the above technical solution, the rail body is pre-buried in the designated position in advance. When the lifting assembly lifts the receiving bracket to a certain height, the first extension section is fixedly installed on the base plate, and the first extension section is connected to the rail body and is an extension of the rail body; when the receiving bracket reaches the end point, the lifting assembly lifts the receiving bracket to a certain height, and then removes the second extension section, so as to facilitate placing the receiving bracket in the designated position.

[0022] Furthermore, the lifting assembly comprises: Support blocks, multiple groups of the support blocks are welded and arranged on both sides of the shield machine; Steel piers, which are pre-arranged on the bottom plate below the support blocks; A lifting hydraulic cylinder is arranged on the steel pier and is used to push the support block to slide away from the steel pier.

[0023] By adopting the above technical solution, when it is necessary to lift the receiving bracket off the base plate, the lifting hydraulic cylinder is fixed on the steel pier, and then the lifting hydraulic cylinder is pressed against the lower surface of the support block, so that the receiving bracket and the shield machine can slide away from the base plate.

[0024] Furthermore, the rear supporting trailer is provided with a configuration component for reducing the probability of lateral shifting and rolling over, and the configuration component is composed of a plurality of water tanks and water injected into the water tanks.

[0025] By adopting the above technical solution, since there is a large difference in weight between the two sides of the rear supporting trailer, a certain amount of water is injected into the water tank to make the weight on both sides of the rear supporting trailer approach to be equal, thereby reducing the probability of rollover of the rear supporting trailer when it moves sideways.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Move the shield machine to the receiving bracket and weld it, then use multiple sets of lifting hydraulic cylinders to lift the receiving bracket to a certain height, then lay the first extension section connected to the rail body at the bottom of the receiving bracket, then use the lifting hydraulic cylinder to place the receiving bracket on the first extension section, and fix the pushing hydraulic cylinder on the first extension section. The pushing hydraulic cylinder and steel supports of different lengths cooperate with each other to slide the shield machine along the transverse rails to the specified position. Through the sliding contact between multiple sets of transverse rails and the receiving bracket, the probability of displacement during the movement of the shield machine is reduced, and the construction efficiency of the transverse movement of the shield machine is improved.

[0027] 2. After the pushing hydraulic cylinder pushes the receiving bracket forward one stroke, a group of supports are placed between the pushing hydraulic cylinder and the receiving bracket to facilitate pushing the receiving bracket to slide on the transverse rail. At the same time, the pushing hydraulic cylinder and the stretching hydraulic cylinder work together to drive the receiving bracket to slide on the transverse rail, thereby reducing the probability of the shield machine rolling over.

[0028] 3. When the receiving bracket slides on the transverse rail, the driving member drives the extrusion plate to slide in the oil supply box, so as to squeeze the lubricating oil in the oil supply box into multiple sets of oil supply grooves, and then the lubricating oil enters the gap between the clamping plate and the transverse rail through the oil supply groove, thereby reducing the friction coefficient between the receiving bracket and the transverse rail, making it easier for the receiving bracket to slide on the transverse rail. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the lateral translation structure of Example 1 of the present application; Figure 2 It is a schematic diagram of the structure of the transverse rail, the pushing hydraulic cylinder and the receiving bracket of Example 1 of the present application; Figure 3 It is a schematic diagram of the structure of the transverse rail, the pushing hydraulic cylinder and the receiving bracket of Example 2 of the present application; Figure 4 yes Figure 3 The enlarged schematic diagram of the middle A part; Figure 5 It is a schematic diagram of the structure of the transverse rail, the pushing hydraulic cylinder and the receiving bracket of Example 3 of the present application; Figure 6 yes Figure 5 Enlarged schematic diagram of part B in the middle.

[0030] Figure numerals: 1. Shield machine; 2. Receiving bracket; 3. Transverse rail; 31. Rail body; 32. First extension section; 33. Second extension section; 4. Lifting assembly; 41. Support block; 42. Steel pier; 43. Lifting hydraulic cylinder; 5. Pushing hydraulic cylinder; 51. Hydraulic cylinder support point; 52. Steel support; 6. Support member; 61. Support steel body; 62. Connecting block; 63. Limiting block; 7. Stretching assembly; 71. Shell; 72. Stretching hydraulic cylinder; 73. Clamping hydraulic cylinder; 8. Lubrication mechanism; 81. Oil supply box; 82. Clamping plate; 83. Pressurizing assembly; 831. Extrusion plate; 832. Driving member. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] The embodiment of the present application discloses a method for lateral translation construction of a shield machine in a closed underground small space.

[0033] Example 1 Reference Figure 1 and Figure 2 A method for lateral translation of a shield machine in a closed underground small space, comprising the following steps: S1. Fixing the shield machine 1: setting a receiving bracket 2 at the starting point of the bottom plate, and then moving the shield machine 1 to a designated position of the receiving bracket 2 and locking and connecting with the receiving bracket 2; S2, receiving bracket 2 sliding setting: the receiving bracket 2 is lifted to a certain height by the lifting assembly 4, and then the transverse rail 3 is laid at the bottom of the receiving bracket 2, and the lifting assembly 4 places the receiving bracket 2 on the transverse rail 3 so that the receiving bracket 2 can slide on the transverse rail 3; S3, lateral movement of the shield machine 1: a pushing hydraulic cylinder 5 is arranged on the lateral movement rail 3, the pushing hydraulic cylinder 5 cooperates with the steel supports 52 of different lengths and enables the pushing hydraulic cylinder 5 to push the receiving bracket 2 to move to a designated position along the lateral movement rail 3; S4, the shield machine 1 is placed: the receiving bracket 2 is lifted to a certain height by the lifting assembly 4, and the transverse rail 3 at the bottom of the receiving bracket 2 is removed, and then the receiving bracket 2 is placed on the designated bottom plate; S5. Translation of the rear trailer: After the shield machine 1 is placed, the rear trailer is driven by an electric hoist to move horizontally along the transverse rail 3 to a designated position.

[0034] Reference Figure 1 A screw machine is arranged between the shield machine 1 and the rear supporting trailer. In order to prevent the screw machine from affecting the shield machine 1 when the shield machine 1 is translated, the shield machine 1 is first separated from the rear supporting trailer, and then the screw machine installed on the shield machine 1 is removed inside the station in a closed well environment; the screw machine separated from the shield machine 1 is placed flat on the segment car and the segment car is pushed to a reasonable position, and then the screw machine is welded and fixed, and finally pushed into the cave.

[0035] Reference Figure 2 The transverse rail 3 includes a rail body 31, a first extension section 32 and a second extension section 33. The rail body 31 is pre-laid on the bottom plate, and the rail body 31 is convenient for receiving the transverse movement of the bracket 2; the first extension section 32 and the second extension section 33 are respectively detachably arranged on the opposite ends of the rail body 31, and the first extension section 32 and the second extension section 33 are both extensions of the rail body 31.

[0036] Reference Figure 1 and Figure 2 Before the tunnel is penetrated, the bottom plate is first cleaned and leveled as a whole, wherein the bottom plate is divided into a starting point, a transverse movement area and an end point according to the area, and the receiving bracket 2 is fixedly installed at the starting point; sleepers are pre-laid in the transverse pushing area and the end point, and then the rail body 31 and the second extension section 33 are fixedly installed on multiple groups of sleepers, wherein the second extension section 33 is connected to the rail body 31, and the second extension section 33 is an extension of the length direction of the rail body 31, and the length direction of the rail body 31 is the same as the transverse movement direction of the shield machine 1.

[0037] Reference Figure 1 and Figure 2 , the shield machine 1 is pushed to the specified position of the receiving bracket 2 by the empty pushing method, and then welded and fixed at the connection between the two sides of the shield machine 1 and the receiving bracket 2, so that the receiving bracket 2 and the shield machine 1 are connected into a whole, the lifting assembly 4 includes a support block 41, a steel pier 42 and a lifting hydraulic cylinder 43, the support block 41 is provided with multiple groups, and the multiple groups of support blocks 41 are welded and installed on both sides of the shield machine 1; the steel pier 42 is pre-installed on the bottom plate, and the steel pier 42 is located directly below the support block 41; the lifting hydraulic cylinder 43 is fixedly installed on the upper surface of the steel pier 42, and the movable end of the lifting hydraulic cylinder 43 is pressed against the lower surface of the support block 41, wherein multiple groups of lifting assemblies 4 are fixedly installed on the shield machine 1, and the shield machine 1 and the receiving bracket 2 are lifted off the bottom plate through the joint action of multiple groups of lifting assemblies 4.

[0038] Reference Figure 1 and Figure 2 After the multiple groups of lifting components 4 jointly lift the shield machine 1 and the receiving bracket 2 off the ground, sleepers are laid on the bottom plate at the bottom of the receiving bracket 2, and then multiple groups of first extension sections 32 are fixedly installed on the multiple groups of sleepers, wherein the first extension sections 32 are fixedly connected to the corresponding rail bodies 31, wherein the first extension sections 32 are extensions of the rail bodies 31 in the length direction; after the first extension sections 32 are installed, No. 2 lithium-based grease lubricating oil is applied to the upper surfaces of the first extension sections 32, the rail bodies 31 and the second extension sections 33; after the No. 2 lithium-based grease lubricating oil is applied, the multiple groups of lifting hydraulic cylinders 43 are lowered to place the receiving bracket 2 on the first extension section 32, so that the receiving bracket 2 can slide on the multiple groups of first extension sections 32, and the No. 2 lithium-based grease lubricating oil reduces the friction coefficient of the receiving bracket 2 sliding on the multiple groups of transverse rails 3.

[0039] Reference Figure 1 and Figure 2 A hydraulic cylinder support point 51 is fixedly installed on the first extension section 32 by an external hexagonal bolt, and the cylinder body of the pushing hydraulic cylinder 5 is fixedly installed on the hydraulic cylinder support point 51, and the movable end of the pushing hydraulic cylinder 5 is pressed against the side wall of the receiving bracket 2; when in use, multiple groups of pushing hydraulic cylinders 5 are started synchronously to push the receiving bracket 2 to slide from the first extension section 32 to the rail body 31. When the pushing hydraulic cylinder 5 reaches the maximum stroke, the pushing hydraulic cylinder 5 retracts to its original position, and then a steel support 52 is placed between the pushing hydraulic cylinder 5 and the receiving bracket 2. The steel support 52 can slide on the transverse rail 3, and the two ends of the steel support 52 are respectively pressed against the movable end of the pushing hydraulic cylinder 5 and the side of the receiving bracket 2 close to the pushing hydraulic cylinder 5; there are multiple groups of steel supports 52 at the same position, and the lengths of the multiple groups of steel supports 52 are different, and the lengths of the multiple groups of steel supports 52 are integer multiples of the maximum stroke of the pushing hydraulic cylinder 5.

[0040] Reference Figure 1 and Figure 2The specific selection process is that after the hydraulic cylinder 5 is retracted for the first time, a steel support 52 with a length that is twice the maximum stroke of the hydraulic cylinder 5 is selected; after the hydraulic cylinder 5 is retracted for the second time, the first steel support 52 is taken out and replaced with a new steel support 52, and the length of the new steel support 52 is twice the maximum stroke of the hydraulic cylinder 5, and so on, and finally the receiving bracket 2 is pushed to the specified position.

[0041] Reference Figure 1 and Figure 2 Since the shield machine 1 has a large mass, in order to facilitate the sliding of the shield machine 1, multiple groups of pushing hydraulic cylinders 5 work together to push the receiving bracket 2 to slide on the transverse rail 3; in order to prevent the receiving bracket 2 from sliding when the pushing hydraulic cylinders 5 retract, a part of the pushing hydraulic cylinders 5 are retracted first when the multiple groups of pushing hydraulic cylinders 5 retract, and then a steel support 52 is placed between the retracted pushing hydraulic cylinders 5 and the receiving bracket 2, and then the remaining pushing hydraulic cylinders 5 are retracted, and then a steel support 52 is placed between the retracted pushing hydraulic cylinders 5 and the receiving bracket 2, and finally the receiving bracket 2 is pushed together to slide on the transverse rail 3.

[0042] Reference Figure 1 and Figure 2 When the receiving bracket 2 moves to the end point, the receiving bracket 2 is lifted to a certain height by the lifting assembly 4, and then the second extension section 33 at the bottom of the receiving bracket 2 is removed. Finally, the lifting assembly 4 places the receiving bracket 2 on the bottom plate, and finally the shield machine 1 is moved to the next group of tunnel entrances.

[0043] Reference Figure 1 Before the shield machine 1 is through, a counterweight is set on the lighter side of the rear supporting trailer with a larger weight difference, so as to make the weight on both sides of the rear supporting trailer approach equal; the translation principle of the rear supporting trailer is the same as that of the shield machine 1. Three segment vehicles are placed above the station floor rails. The rear supporting trailer rails are laid with 300×300 H-steel padded with 3cm steel plates underneath and then welded and fixed. The locomotive rails must be laid with 400×400 H-steel padded with 2 4cm steel plates underneath and then welded and fixed. The laid rails and The track surfaces of the rear supporting trailer and the electric locomotive in the tunnel are connected at the same height. 50 cm should be reserved above the H-shaped steel close to the tunnel side to avoid the joints hanging in the air when the rails are overlapped in the tunnel. After the main engine of the shield machine 1 is hoisted, the processed rear supporting translation bracket is dragged to the left line, and the rear supporting trailer is pushed onto the translation bracket by the tunnel electric locomotive, and two 5t electric hoists are used for horizontal translation; the configuration parts of this embodiment are composed of multiple groups of water tanks and water injected into the water tanks. The weight on both sides of the rear supporting trailer is made equal by controlling the amount of water injected.

[0044] The working principle of Example 1 of the present application is: The shield machine 1 is moved to the receiving bracket 2 and welded and fixed, and then the receiving bracket 2 is lifted to a certain height by multiple sets of lifting hydraulic cylinders 43, and then the first extension section 32 connected to the rail body 31 is laid at the bottom of the receiving bracket 2, and then the lifting hydraulic cylinder 43 places the receiving bracket 2 on the first extension section 32, and the pushing hydraulic cylinder 5 is fixedly installed on the first extension section 32, and the pushing hydraulic cylinder 5 and steel supports 52 of different lengths cooperate with each other to slide the shield machine 1 along the transverse rail 3 to the specified position, and the multiple sets of transverse rails 3 are slidably abutted against the receiving bracket 2, so as to reduce the probability of displacement during the movement of the shield machine 1 and improve the construction efficiency of the transverse movement of the shield machine 1.

[0045] Example 2 Reference Figure 3 and Figure 4 , the difference between this embodiment and embodiment 1 is that the steel supports 52 of different lengths are composed of different numbers of support members 6, and the support members 6 include a support steel body 61, a connecting block 62 and a limit block 63. The support steel body 61 can be slidably installed on the transverse rail 3. The support steel body 61 of this embodiment is an H-shaped steel. When in use, the support steel body 61 is clamped and installed on the transverse rail 3; there are two groups of connecting blocks 62, and the two groups of connecting blocks 62 are respectively fixedly installed on the opposite ends of the support steel body 61. The length of the support steel body 61 plus the thickness of the two groups of connecting blocks 62 is equal to the maximum stroke of the hydraulic cylinder 5; when the two groups of support members 6 are pressed against each other, they are pressed against each other through the connecting block 62 and fixedly connected by bolts; the two ends of the limit block 63 are respectively locked on the adjacent two connecting blocks 62 by bolts, and the limit block 63 slides and presses against the transverse rail 3. The limit block 63 is used to prevent the two connecting blocks 62 from moving away from the transverse rail 3, thereby reducing the probability of arching and deformation when the two groups of support members 6 are pressed against each other.

[0046] Reference Figure 3 and Figure 4On the side of the receiving bracket 2 away from the pushing hydraulic cylinder 5, a stretching assembly 7 for assisting the receiving bracket 2 in sliding on the transverse rail 3 is also provided. The stretching assembly 7 includes a shell 71, a stretching hydraulic cylinder 72 and a clamping hydraulic cylinder 73. The shell 71 is slidably installed on the transverse rail 3, and the cylinder body of the stretching hydraulic cylinder 72 is fixedly installed on the shell 71; the piston end of the stretching hydraulic cylinder 72 is fixedly installed on the receiving bracket 2; the maximum stroke of the stretching hydraulic cylinder 72 is equal to the stroke of the pushing hydraulic cylinder 5, and the pulling force of the stretching hydraulic cylinder 72 is less than the thrust of the pushing hydraulic cylinder 5; the clamping hydraulic cylinder 73 is fixedly installed on the shell 71, and the clamping hydraulic cylinder 73 is used to fix and clamp the shell 71 on the transverse rail 3; specifically, before use, the pull rope hydraulic cylinder is in In the maximum stroke state, the clamping hydraulic cylinder 73 is then clamped on the transverse rail 3. When the pushing hydraulic cylinder 5 pushes the receiving bracket 2, the stretching hydraulic cylinder 72 is activated to pull the receiving bracket 2 to slide on the transverse rail 3. When the pushing hydraulic cylinder 5 reaches the maximum stroke, the clamping hydraulic cylinder 73 releases the clamping of the transverse rail 3, and then the pull rope hydraulic cylinder is extended to the maximum stroke to drive the shell 71 to slide on the transverse rail 3. When the pull rope hydraulic cylinder reaches the maximum stroke, the clamping hydraulic cylinder 73 clamps on the transverse rail 3 and fixes the shell 71. After the support member 6 is added, repeat the above steps to make the receiving bracket 2 slide along the transverse rail 3, thereby improving the stability of the receiving bracket 2 when sliding.

[0047] The working principle of Example 2 of the present application is: After the pushing hydraulic cylinder 5 pushes the receiving bracket 2 forward a stroke, a group of support members 6 are placed between the pushing hydraulic cylinder 5 and the receiving bracket 2 to facilitate pushing the receiving bracket 2 to slide on the transverse rail 3. At the same time, the pushing hydraulic cylinder 5 and the stretching hydraulic cylinder 72 work together to drive the receiving bracket 2 to slide on the transverse rail 3, thereby reducing the probability of the shield machine 1 rolling over.

[0048] Example 3 Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that a lubrication mechanism 8 for reducing the friction coefficient between the receiving bracket 2 and the transverse rail 3 is provided on the receiving bracket 2, and the lubrication mechanism 8 includes an oil supply box 81, a clamping plate 82 and a pressurizing assembly 83. The oil supply box 81 is fixedly mounted on the receiving bracket 2; the clamping plate 82 is fixedly mounted on the bottom of the receiving bracket 2 and slidably abuts on the upper surface of the transverse rail 3, and a plurality of groups of oil supply grooves are provided on the clamping plate 82, and the plurality of groups of oil supply grooves are all connected to the inside of the oil supply box 81. The plurality of groups of oil supply grooves discharge the lubricating oil in the oil supply box 81 into between the abutting plate and the transverse rail 3, so as to reduce the friction coefficient between the receiving bracket 2 and the transverse rail 3; the lubricating oil in this embodiment is No. 2 lithium-based grease lubricating oil.

[0049] Reference Figure 5 and Figure 6 The pressurizing component 83 is arranged on the receiving bracket 2, and the pressurizing component 83 is used to pressurize the inside of the oil supply box 81, so as to press the lubricating oil in the oil supply box 81 into between the clamping plate 82 and the transverse rail 3 through the oil supply groove. The pressurizing component 83 includes an extrusion plate 831 and a driving member 832. The extrusion plate 831 is slidably arranged in the oil supply box 81 and presses the lubricating oil in the oil supply box 81 into the oil supply groove. The driving member 832 is fixedly installed on the receiving bracket 2, and the driving member 832 is used to drive the extrusion plate 831 to supply oil. The shield machine 1 slides in the box 81; due to the large weight of the shield machine 1, the gap between the clamping plate 82 and the transverse rail 3 is small. At the same time, the viscosity of the No. 2 lithium-based grease lubricant is medium, and gravity alone cannot flow well. The extrusion plate 831 is driven downward by the driving member 832 to press the lubricating oil in the oil supply box 81 into the gap between the clamping plate 82 and the transverse rail 3, thereby finally achieving the effect of reducing the friction coefficient between the receiving bracket 2 and the transverse rail 3; the driving member 832 of this embodiment is an electric push rod.

[0050] The working principle of Example 3 of the present application is: When the receiving bracket 2 slides on the transverse rail 3, the extrusion plate 831 is driven to slide in the oil supply box 81 through the driving member 832, so as to squeeze the lubricating oil in the oil supply box 81 into multiple groups of oil supply grooves, and then the lubricating oil enters the gap between the clamping plate 82 and the transverse rail 3 through the oil supply grooves, thereby reducing the friction coefficient between the receiving bracket 2 and the transverse rail 3, making it easier for the receiving bracket 2 to slide on the transverse rail 3.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A closed underground small space shield machine lateral translation construction method, characterized by: The following steps are involved: S1. Fixing the shield machine (1): a receiving bracket (2) is arranged at the starting point of the bottom plate, and then the shield machine (1) is moved to a designated position of the receiving bracket (2) and locked with the receiving bracket (2); S2, receiving bracket (2) sliding setting: the receiving bracket (2) is lifted to a certain height by the lifting assembly (4), and then a transverse steel rail (3) is laid at the bottom of the receiving bracket (2), and the lifting assembly (4) places the receiving bracket (2) on the transverse steel rail (3) so that the receiving bracket (2) can slide on the transverse steel rail (3); S3, transverse movement of the shield machine (1): a pushing hydraulic cylinder (5) is arranged on the transverse movement rail (3), the pushing hydraulic cylinder (5) cooperates with steel supports (52) of different lengths and enables the hydraulic cylinder to push the receiving bracket (2) to move to a specified position along the transverse movement rail (3); S4, the shield machine (1) is placed: the receiving bracket (2) is lifted to a certain height by the lifting assembly (4), the transverse rail (3) at the bottom of the receiving bracket (2) is removed, and then the receiving bracket (2) is placed on a designated bottom plate; S5, translation of the rear supporting trailer: after the shield machine (1) is placed, the rear supporting trailer is driven by an electric hoist to be translated to a designated position along the transverse steel rail (3).

2. According to claim 1, a closed underground small space shield machine lateral translation construction method is characterized by: After the pushing hydraulic cylinder (5) pushes the receiving bracket (2) to move and the pushing hydraulic cylinder (5) reaches the maximum stroke, the pushing hydraulic cylinder (5) is retracted and a steel support (52) is placed between the pushing hydraulic cylinder (5) and the receiving bracket (2), and the two ends of the steel support (52) are respectively pressed against the pushing hydraulic cylinder (5) and the receiving bracket (2), and the lengths of the multiple groups of the steel supports (52) are different and the lengths are integer multiples of the maximum stroke of the pushing hydraulic cylinder (5).

3. The method for lateral translation of a shield machine in a closed underground small space according to claim 2 is characterized in that: When the plurality of groups of the pushing hydraulic cylinders (5) are retracted, a portion of the pushing hydraulic cylinders (5) are retracted first, and then a steel support (52) is placed between the retracted pushing hydraulic cylinders (5) and the receiving bracket (2). Finally, the remaining pushing hydraulic cylinders (5) are retracted and a steel support (52) is placed between the pushing hydraulic cylinders (5) and the receiving bracket (2).

4. The method for lateral translation of a shield machine in a closed underground small space according to claim 2 is characterized in that: The steel supports (52) of different lengths are composed of different numbers of support members (6), and the support members (6) include: A supporting steel body (61), wherein the supporting steel body (61) is slidably disposed on the transverse steel rail (3); Connecting blocks (62), two groups of the connecting blocks (62) are respectively arranged at two opposite ends of the supporting steel body (61), and two adjacent supporting steel bodies (61) are tightly connected to each other via the connecting blocks (62); A limit block (63), wherein both ends of the limit block (63) are locked on adjacent connection blocks (62) by means of bolts and are slidably pressed against the transverse rail (3), and the limit block (63) is used to prevent the two connection blocks (62) from moving in a direction away from the transverse rail (3).

5. The method for lateral translation of a shield machine in a closed underground small space according to claim 4 is characterized in that: A stretching assembly (7) for assisting the receiving bracket (2) in sliding on the transverse rail (3) is provided on a side of the receiving bracket (2) away from the pushing hydraulic cylinder (5). The stretching assembly (7) comprises: A housing (71), wherein the housing (71) is slidably disposed on the transverse steel rail (3); A stretching hydraulic cylinder (72), wherein the stretching hydraulic cylinder (72) is arranged on the housing (71) and a movable end is connected to the receiving bracket (2); A clamping hydraulic cylinder (73), wherein the clamping hydraulic cylinder (73) is arranged on the housing (71), and the clamping hydraulic cylinder (73) is used to clamp the housing (71) on the transverse steel rail (3).

6. The method for lateral translation of a shield machine in a closed underground small space according to claim 2 is characterized in that: The receiving bracket (2) is provided with a lubrication mechanism (8) for reducing the friction coefficient between the receiving bracket (2) and the transverse rail (3), and the lubrication mechanism (8) comprises: An oil supply box (81), wherein the oil supply box (81) is arranged on the receiving bracket (2); a clamping plate (82), the clamping plate (82) being arranged on the receiving bracket (2) and slidingly pressed against the transverse rail (3), the clamping plate (82) being provided with an oil supply groove, the oil supply groove being in communication with the interior of the oil supply box (81) and discharging lubricating oil in the oil supply box (81) into between the clamping plate (82) and the transverse rail (3); A pressurizing component (83) is arranged on the receiving bracket (2) and is used to pressurize the oil supply box (81). The pressurizing component (83) presses the lubricating oil in the oil supply box (81) into between the abutting plate (82) and the transverse rail (3) through the oil supply groove.

7. The method for lateral translation of a shield machine in a closed underground small space according to claim 6 is characterized in that: The pressurizing component (83) comprises: An extrusion plate (831), the extrusion plate (831) being slidably disposed in the oil supply box (81) and used to squeeze the lubricating oil in the oil supply box (81) into the oil supply groove; A driving member (832) is arranged on the receiving bracket (2) and is used to drive the extrusion plate (831) to slide in the oil supply box (81).

8. The method for lateral translation of a shield machine in a closed underground small space according to claim 1, characterized in that: The transverse rail (3) comprises: A rail body (31), the rail body (31) being pre-laid on the bottom plate and convenient for receiving the lateral movement of the bracket (2); a first extension section (32), the first extension section (32) being arranged on a side of the rail body (31) close to the starting point, the lifting assembly (4) lifting the receiving bracket (2) and the shield machine (1) to a certain height and then laying the first extension section (32) at the starting point; A second extension section (33) is arranged on a side of the rail body (31) away from the first extension section (32); after the receiving bracket (2) is moved to a specified position, the second extension section (33) can be taken out and the receiving bracket (2) can be placed on a specified bottom plate.

9. The method for lateral translation of a shield machine in a closed underground small space according to claim 1, characterized in that: The lifting assembly (4) comprises: Support blocks (41), wherein a plurality of groups of the support blocks (41) are welded and arranged on both sides of the shield machine (1); A steel pier (42), wherein the steel pier (42) is pre-arranged on a bottom plate below the support block (41); A lifting hydraulic cylinder (43) is arranged on the steel pier (42) and is used to push the support block (41) to slide in a direction away from the steel pier (42).

10. The method for lateral translation of a shield machine in a closed underground small space according to claim 1, characterized in that: The rear supporting trailer is provided with a configuration component for reducing the probability of lateral shift and rollover, and the configuration component is composed of a plurality of water tanks and water injected into the water tanks.

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