CN108561147B

CN108561147B - Shallow undercut tunnel construction equipment that buries of large-span

Info

Publication number: CN108561147B
Application number: CN201810363895.3A
Authority: CN
Inventors: 谢志坚
Original assignee: China Railway Guizhou Municipal Engineering Co Ltd
Current assignee: Urban Construction Co Ltd of China Railway 17th Bureau Group Co Ltd
Priority date: 2018-04-22
Filing date: 2018-04-22
Publication date: 2020-07-10
Anticipated expiration: 2038-04-22
Also published as: CN108561147A

Abstract

The invention discloses a large-span shallow-buried underground excavation tunnel construction device, which structurally comprises a grouting pipeline, a grouting layer, a jack, an adjusting shield machine, a grouting box, a track, I-steel, an adjustable bracket and an advanced guide pipe, wherein the grouting pipeline is arranged on the grouting layer, and the grouting pipeline and the jack are fixedly connected together in an embedded mode, the large-span shallow-buried underground excavation tunnel construction device is characterized in that a transmission rod mechanism is started to drive a rotating mechanism through controlling a motor braking device, so that the rotating excavation of a shield head device is realized, the pressure generated in the working process can be buffered for many times due to the existence of a connecting mechanism, the working of the whole device is not influenced, the shield head is prevented from being clamped, the shield head is slightly retracted, and in an emergency situation, the clamping device can be started by controlling the conductive action of a connecting box, and the rotation of a shield head rotating shaft is rapidly stopped, the stopping time is reduced to the maximum extent, the safety and the instantaneity are better, and the excavation stability is improved.

Description

Shallow undercut tunnel construction equipment that buries of large-span

Technical Field

The invention discloses large-span shallow-buried underground excavation tunnel construction equipment, and belongs to the technical field of tunnel construction.

Background

The shallow excavation method is a method for carrying out various underground cavern excavation constructions in the underground close to the ground surface. In the soft surrounding rock stratum of cities and towns, the underground engineering is built under the shallow buried condition, the geological condition is improved on the premise of controlling the ground surface settlement, the grating and the spray anchor are used as primary support means, the construction is carried out according to the eighteen-character principle, the shallow buried underground excavation method is called, the tunneling equipment utilizes a rotary cutter to excavate, and simultaneously, the surrounding rock and the tunneling in a hole are broken, so that the novel and advanced tunnel construction machine of the whole tunnel section is formed.

However, in the prior art, the tunnel is excavated by adopting a rotating mode of the shield tunneling machine, but the excavation stability cannot be guaranteed because the excavation is not complete in time and hardness, and the tunnel cannot be quickly stopped due to the reason that the inertia of the shield head is too large, so that the safety is poor.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide large-span shallow-buried underground excavation tunnel construction equipment, which solves the problems that in the prior art, a shield machine is adopted to excavate a tunnel in a rotating mode, but the equipment shakes due to the fact that the excavation is not complete in time hardness, the excavation stability cannot be ensured, and in the case of emergency stop, the safety is poor due to the fact that the shield head cannot be quickly stopped due to overlarge inertia.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a shallow undercut tunnel construction equipment that buries of large-span, its structure includes slip casting pipeline, slip casting layer, jack, regulation shield structure machine, slip casting case, track, I-steel, adjustable support, leading pipe, slip casting piping erection on the slip casting layer both adopt the mode fixed connection of embedding together simultaneously, the upper surface of jack install the I-steel and adopt the mode fixed connection of embedding, the lower surface of regulation shield structure machine be equipped with the track and both adopt the mode of laminating to connect simultaneously, the lower surface of adjustable support weld with the upper surface of I-steel mutually, the upper surface of adjustable support be connected with the slip casting layer, leading pipe install in the inside of slip casting layer, regulation shield structure machine including supporting constitution device, motor arresting gear, transfer line mechanism, rotary mechanism, coupling mechanism, shield head device, Clamping device, the support constitute the inside of device be equipped with motor arresting gear and both adopt welded mode fixed connection together simultaneously, transfer line mechanism install in the inside of supporting the constitution device, motor arresting gear pass through transfer line mechanism and rotary mechanism transitional coupling, coupling mechanism and shield head device cooperation be connected, motor arresting gear and clamping device interference fit, clamping device install in the inside of supporting the constitution device, shield head device adopt the mode of embedding to connect on supporting the constitution device.

Further, the support constitute the device include alloy casing, installation base, slide rail board, magnetic shield, half frid, alloy casing's internally surface mounting install the installation base and adopt the welded mode to link together, magnetic shield fixed connection in alloy casing's internal surface, half frid's one end and alloy casing's internal surface fixed connection, alloy casing's inside be equipped with motor brake equipment, transfer line mechanism install on slide rail board, rotary mechanism locate alloy casing's inside, coupling mechanism and half frid cooperation be connected, the shield head device install on alloy casing through the mode of embedding, alloy casing's inside be equipped with clamping device.

Further, the motor braking device comprises a braking groove shaft, a motor, a conductive bar, a control connection box, a cathode ball, a cathode block and a fixed wheel, wherein the bottom end of the braking groove shaft is installed inside the motor in an embedded mode, the conductive bar is arranged on the right side face of the motor, the rear surface of the control connection box is fixedly installed on the inner surface of the alloy shell, the cathode block is nested with the cathode ball, the fixed wheel is arranged inside the alloy shell, the cathode block is fixedly connected to the right end of the conductive bar in an adhesion mode, the braking groove shaft is connected with the transmission rod mechanism in a matched mode, and the cathode ball is in interference fit with the clamping device.

Further, transfer line mechanism include right angle sawtooth groove pole, drive gear, cross connection pole group, sliding block, transfer line, sawtooth lifter, right angle sawtooth groove pole pass through the sawtooth and be connected with the drive gear meshing, cross connection pole group's both ends movable mounting in drive gear's positive surface, the positive surface of sliding block be equipped with the transfer line and adopt the mode of embedding to link together, the sawtooth lifter pass through the transfer line and be connected with the sliding block cooperation, right angle sawtooth groove pole and braking grooved shaft interference fit, the sawtooth lifter pass through the sawtooth and agree with each other with drive gear, the sliding block on be equipped with rotary mechanism.

Further, rotary mechanism include slide bar, rotating disc, single groove move pole, regulating block group, connection belt, carousel group, rotation axis, the slide bar move pole transitional coupling through regulating block group and single groove, the positive surface of rotating disc be equipped with the regulating block simultaneously through the mode fixed connection that bonds, the connection belt install on carousel group and both adopt the mode of laminating to link together, the left end welding of rotation axis have the carousel group, the rotation axis on install the shield head device, be equipped with coupling mechanism under the connection belt, the surface of regulating block and the internal surface of single groove move the pole laminate each other, rotating disc pass through connection belt and carousel group transitional coupling, the slide bar on be equipped with the sliding block.

Further, coupling mechanism include fixed anode plate, fore-set, activity anode plate, jack-post, copper wire, first spring, connecting rod, fixed anode plate and activity anode plate nested mutually, the surface of fore-set be equipped with the copper wire and both adopt the mode of laminating to link together, the fore-set install in the mode fixed connection that the activity anode plate passes through the embedding, first spring locate the inside of half cell board, the one end fixed connection of copper wire on the connecting rod, the connecting rod install on the shield head device, jack-post and activity anode plate mechanical connection.

Further, the first device of shield include positive pole mounting panel, the first pivot of shield, the first mounting disc of shield, large-scale milling cutter, the first dish of shield, driving belt, the positive pole mounting panel on be equipped with the connecting rod and both adopt the mode swing joint of embedding together simultaneously, the first pivot of shield pass through driving belt and rotation axis transitional coupling, driving belt locate the surface of the first pivot of shield and both link together through the mode of laminating, large-scale milling cutter pass through welded mode fixed mounting on the first dish of shield, the first mounting disc of shield and the first pivot mechanical connection of shield, the first dish of shield on be equipped with the first mounting disc of shield, the first pivot of shield be connected with clamping device cooperation.

Further, clamping device include protecting sheathing, friction mounting piece, tension line, one-way rod, spring erection post, triangle regulating plate, tension rod, cooperation pole, second spring, protecting sheathing's inside be equipped with the one-way rod and both adopt the mode of embedding to carry out movable mounting, the friction mounting piece locate the one-way rod simultaneously both through welded mode fixed connection, the spring erection post on be equipped with the second spring, the cooperation pole install in the mode swing joint of triangle regulating plate through the embedding, tension line and tension rod fixed connection, the tension rod pass through triangle regulating plate and cooperation pole transitional coupling.

Advantageous effects

The invention relates to a large-span shallow-buried underground excavation tunnel construction device, which is structurally provided with an adjusting shield machine, when tunnel excavation construction is required, a rotating state of a brake groove shaft is started by a control motor, a sliding block is driven to slide by a transmission rod and a sawtooth lifting rod through the matching relation of a right-angle sawtooth groove rod, a cross connecting rod group and a transmission gear, a rotating disc is rotated under the connection and the matching of the sliding rod, the adjusting rod group and a single groove movable rod, a rotating disc group and a rotating shaft are driven to rotate by a connecting belt, finally, the shield head device is rotated by the transmission belt and a shield head rotating shaft, pressure applied in the tunnel excavation process forms first buffer force through an anode mounting plate, the connecting rod and a first spring, and magnetic repulsion force formed by a steel wire, a movable anode plate and a fixed anode plate is used as second buffer force, effectively alleviate rocking that produces to the device among the work engineering and can not influence whole device work, when needs emergency stop device, the staff is through the conducting block control to the control connection box to because the electromagnetism principle influences the slip of cathode ball, through the mating reaction of pull wire, pull rod and triangle regulating plate, realize pressing from both sides tightly to the shield head pivot to the friction mounting piece on the one-way pole, make its stall, through the second spring playback.

According to the large-span shallow-buried underground excavation tunnel construction equipment, the transmission rod mechanism is started to drive the rotating mechanism through controlling the motor braking device, so that the shield head device rotates to excavate, the pressure generated in working can be buffered for many times due to the existence of the connecting mechanism, the working of the whole device is not influenced, the shield head can be prevented from being clamped, the shield head can be slightly retracted, in an emergency situation, the clamping device can be started by controlling the conductive action of the connecting box, the rotation of the shield head rotating shaft is quickly stopped, the stopping time is reduced to the greatest extent, the safety and the instantaneity are better, and the excavation stability is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of a large-span shallow-buried underground excavation tunnel construction device of the present invention;

FIG. 2 is a schematic cross-sectional view of an adjusting shield tunneling machine according to the present invention;

FIG. 3 is a schematic view of a partial cross-sectional structure of an adjusting shield tunneling machine according to the present invention;

FIG. 4 is a schematic cross-sectional view of a clamping device according to the present invention;

FIG. 5 is a schematic diagram illustrating the use of a cross-sectional structure of an adjusting shield tunneling machine according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

fig. 7 is a schematic cross-sectional view of a clamping device according to the present invention.

In the figure: grouting pipeline-1, grouting layer-2, jack-3, adjusting shield machine-4, grouting box-5, rail-6, I-steel-7, adjustable support-8, advanced conduit-9, support forming device-401, motor brake device-402, transmission rod mechanism-403, rotating mechanism-404, connecting mechanism-405, shield head device-406, clamping device-407, alloy shell-4011, mounting base-4012, sliding rail plate-4013, magnetic partition plate-4014, half-slot plate-4015, brake slot shaft-4021, motor-4022, conducting bar-4023, control connecting box-4024, cathode ball-4025, cathode block-4026, fixed wheel-4027, right-angle sawtooth slot bar-4031, transmission gear-4032, power transmission gear-4022, power transmission bar-4023, control connecting box-4024, cathode ball-4025, cathode block-4026, fixed, A cross connecting rod group 4033, a sliding block 4034, a transmission rod 4035, a sawtooth lifting rod 4036, a sliding rod 4041, a rotating disc 4042, a single slotted rod 4043, an adjusting block 4044, an adjusting rod group 4045, a connecting belt 4046, a rotating disc group 4047, a rotating shaft 4048, a fixed anode plate 4051, a top column 4052, a movable anode plate 4053, a shaft column 4054, a steel wire 4055, a first spring 4056, a connecting rod 4057, an anode mounting plate 4061, a shield head rotating shaft 4062, a shield head mounting disc 4063, a large milling cutter 4064, a shield head disc 4065, a transmission belt 4066, a protective shell 4071, a friction mounting block 4072, a tension wire 4073, a one-way rod 4074, a spring mounting column 4075, a tension wire 4073, a one-way rod 4074, a spring mounting column 4075, a spring mounting column 4045, a fixed anode plate 40, Triangle adjusting plate-4076, tension rod-4077, matching rod-4078 and second spring-4079.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1 to 7, the present invention provides a technical solution of a large-span shallow-buried underground excavation tunnel construction apparatus: the utility model provides a shallow undercut tunnel construction equipment that buries of large-span, its structure includes slip casting pipeline 1, slip casting layer 2, jack 3, regulation shield structure machine 4, slip casting case 5, track 6, I-steel 7, adjustable support 8, leading pipe 9, slip casting pipeline 1 install on slip casting layer 2 and both adopt the mode fixed connection of embedding together simultaneously, the upper surface of jack 3 install I-steel 7 and adopt the mode fixed connection of embedding, the lower surface of regulation shield structure machine 4 be equipped with track 6 and both adopt the mode of laminating to connect simultaneously, the lower surface of adjustable support 8 and the upper surface of I-steel 7 weld mutually, the upper surface of adjustable support 8 be connected with slip casting layer 2, leading pipe 9 install in the inside of slip casting layer 2, regulation shield structure machine 4 including supporting component device 401, motor arresting gear 402, The shield head device comprises a transmission rod mechanism 403, a rotating mechanism 404, a connecting mechanism 405, a shield head device 406 and a clamping device 407, wherein a motor braking device 402 is arranged in the support forming device 401 and fixedly connected together in a welding mode, the transmission rod mechanism 403 is installed in the support forming device 401, the motor braking device 402 is in transition connection with the rotating mechanism 404 through the transmission rod mechanism 403, the connecting mechanism 405 is in fit connection with the shield head device 406, the motor braking device 402 is in interference fit with the clamping device 407, the clamping device 407 is installed in the support forming device 401, the shield head device 406 is connected to the support forming device 401 in an embedded mode, the support forming device 401 comprises an alloy shell 4011, an installation base 4012, a sliding rail plate 4013, a magnetic isolation plate 4014 and a half-slot plate 4015, the installation base 4012 is installed on the inner surface of the alloy shell 4011 and connected together in a welding mode, the magnetic separation plate 4014 is fixedly connected to the inner surface of an alloy housing 4011, one end of a half-groove plate 4015 is fixedly connected to the inner surface of the alloy housing 4011, a motor brake device 402 is arranged inside the alloy housing 4011, a transmission rod mechanism 403 is installed on a sliding rail plate 4013, a rotating mechanism 404 is arranged inside the alloy housing 4011, a connecting mechanism 405 is connected with the half-groove plate 4015 in a matching manner, a shield head device 406 is installed on the alloy housing 4011 in an embedded manner, a clamping device 407 is arranged inside the alloy housing 4011, the motor brake device 402 comprises a brake groove shaft 4021, a motor 4022, a conductive strip 4023, a control connecting box 4024, a cathode ball 4025, a cathode block 4026 and a fixed wheel 4027, the bottom end of the brake groove shaft 4021 is installed inside the motor 4022 in an embedded manner, a conductive strip 4023 is arranged on the right side of the motor 4022, the rear surface of the control connecting box 4024 is fixedly installed on the inner surface of the alloy housing 4011, the cathode block 4026 is embedded with the cathode ball 4025, the fixed wheel 4027 is arranged inside the alloy housing 4011, the cathode block 4026 is fixedly connected to the right end of the conductive bar 4023 in an adhesion manner, the brake groove shaft 4021 is connected with the transmission rod mechanism 403 in a matching manner, the cathode ball 4025 is in interference fit with the clamping device 407, the transmission rod mechanism 403 comprises a right-angle sawtooth groove bar 4031, a transmission gear 4032, a cross connecting rod set 4033, a sliding block 4034, a transmission rod 4035 and a sawtooth lifting rod 4036, the right-angle sawtooth groove bar 4031 is in meshing connection with the transmission gear 4032 through sawteeth, two ends of the cross connecting rod set 4033 are movably installed on the front surface of the transmission gear 4032, the front surface of the sliding block 4034 is provided with the transmission rod 4035 and connected together in an embedding manner, the sawtooth lifting rod 4036 is connected with the sliding block 4034 in a matched mode through the transmission rod 4035, the right-angle sawtooth groove rod 4031 is in interference fit with the brake groove shaft 4021, the sawtooth lifting rod 4036 is mutually matched with the transmission gear 4032 through sawteeth, the sliding block 4034 is provided with the rotating mechanism 404, the rotating mechanism 404 comprises a sliding rod 4041, a rotating disk 4042, a single-notch-rod 4043, an adjusting block 4044, an adjusting rod group 4045, a connecting belt 4046, a rotating disk group 4047 and a rotating shaft 4048, the sliding rod 4041 is in transition connection with the single-notch-rod 4043 through the adjusting rod group 4045, the front surface of the rotating disk 4042 is provided with the adjusting block 4044 and is fixedly connected in a bonding mode, the connecting belt 4046 is installed on the rotating disk group 4047 and is connected together in a bonding mode, the rotating disk group 4047 is welded at the left end of the rotating shaft 4048, and the rotating shaft 4048 is provided with the shield head device 406, a connecting mechanism 405 is arranged under the connecting belt 4046, the outer surface of the adjusting block 4044 is attached to the inner surface of the single slotted rod 4043, the rotating disk 4042 is in transition connection with the rotating disk group 4047 through the connecting belt 4046, the sliding rod 4041 is provided with a sliding block 4034, the connecting mechanism 405 includes a fixed anode plate 4051, a top pillar 4052, a movable anode plate 4053, a shaft pillar 4054, a steel wire 4055, a first spring 4056 and a connecting rod 4057, the fixed anode plate 4051 is embedded with the movable anode plate 4053, the outer surface of the top pillar 4052 is provided with the steel wire 4055, the two are connected together in an attaching manner, the top pillar 4052 is installed on the movable anode plate 4053 and is fixedly connected in an embedding manner, the first spring 4056 is arranged in the half-slotted plate 4015, one end of the steel wire 4055 is fixedly connected to the connecting rod 4057, the connecting rod 4057 is installed on the shield head device 406, the jack-post 4054 be mechanically connected with movable anode plate 4053, shield head device 406 include anode mounting panel 4061, shield head pivot 4062, shield head mounting disc 4063, large-scale milling cutter 4064, shield head dish 4065, driving belt 4066, anode mounting panel 4061 on be equipped with connecting rod 4057 and both adopt the mode swing joint of embedding together simultaneously, shield head pivot 4062 pass through driving belt 4066 and rotation axis 4048 transitional coupling, driving belt 4066 locate shield head pivot 4062 the surface and both link together through the mode of laminating, large-scale milling cutter 4064 through welded mode fixed mounting on shield head dish 4065, shield head mounting disc 4063 and shield head pivot 4062 mechanical connection, shield head dish 4065 on be equipped with shield head mounting disc 4063, shield head pivot 4062 and clamping device 407 cooperation be connected, clamping device 407 include protective housing 4071, Friction installation piece 4072, pulling force line 4073, one-way pole 4074, spring mounting post 4075, triangle regulating plate 4076, pulling force pole 4077, cooperation pole 4078, second spring 4079, protective housing 4071's inside be equipped with one-way pole 4074 and both adopt the mode of embedding to carry out movable mounting, friction installation piece 4072 locate one-way pole 4074 and both simultaneously through welded mode fixed connection, spring mounting post 4075 on be equipped with second spring 4079, cooperation pole 4078 install in triangle regulating plate 4076 through the mode swing joint of embedding, pulling force line 4073 and pulling force pole 4077 fixed connection, pulling force pole 4077 through triangle regulating plate 4076 and cooperation pole 4078 transitional coupling.

The spring described in this patent is a mechanical part that works by using elasticity. The parts made of elastic materials deform under the action of external force, and restore to the original shape after the external force is removed, and are generally made of spring steel. The types of springs are complex and various, and mainly include spiral springs, volute springs, plate springs, special springs and the like according to the shapes.

When the tunnel boring machine is used, the adjusting shield machine 4 is structurally provided, when tunnel boring construction needs to be performed, the rotation state of the brake groove shaft 4021 is started by controlling the motor 4022, the slide block 4034 is driven to slide by the transmission rod 4035 and the saw tooth lifting rod 4036 through the matching relation of the right-angled saw tooth groove rod 4031, the cross connection rod group 4033 and the transmission gear 4032, the rotation of the rotating disk 4042 is realized under the connection and matching of the slide rod 4041, the adjustment rod group 4045 and the single slot rod 4043, the rotation of the rotating disk 4047 and the rotating shaft 4048 is driven by the connecting belt 4046, finally, the rotation of the shield head device 406 is realized through the transmission belt 4066 and the shield head rotating shaft 4062, a first buffer force is formed by the anode mounting plate 4061, the connecting rod 4057 and the first spring 4056 for pressure applied in the tunnel boring process, and a magnetic repulsive force formed by the steel wire 4055, the movable anode plate 4053 and the fixed anode plate 4051 is a second buffer force, effectively alleviate rocking that produces the device among the work engineering and can not influence whole device work, when needs emergency stop device, the staff is through the conducting block control to control connecting box 4024, thereby because the electromagnetism principle influences the slip of cathode ball 4025, through the cooperation of pull wire 4073, pull rod 4077 and triangle regulating plate 4076, the friction mounting piece 4072 to on the one-way pole 4074 realizes the clamp of shield head pivot 4062, make it stop rotating, through the homing of second spring 4079.

The invention solves the problems that the prior art adopts a shield machine to excavate a tunnel in a rotating mode, but the excavation cannot be ensured because the excavation has the same time hardness and the equipment shakes because of incomplete excavation, the excavation stability cannot be ensured, and the safety is poor because the shield head cannot be quickly stopped because of overlarge inertia when the shield head stops emergently, through the mutual combination of the components, the invention provides the large-span shallow-buried underground excavation tunnel construction equipment, so that a transmission rod mechanism is started to drive a rotating mechanism through the control of a motor braking device, the rotation of the shield head device is realized to carry out the rotating excavation, the pressure generated during the working can be buffered for many times due to the existence of a connecting mechanism, the working of the whole device is not influenced, the shield head can be prevented from being clamped, the shield head is slightly retracted, and the clamping device can be started under the condition of emergency by controlling the conductive action of a connecting box, the rotation of the rotating shaft of the shield head is quickly stopped, the stopping time is reduced to the maximum extent, the safety and the instantaneity are better, and the excavation stability is improved

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a shallow undercut tunnel construction equipment that buries of large-span, its structure includes slip casting pipeline (1), slip casting layer (2), jack (3), adjusts shield structure machine (4), slip casting case (5), track (6), I-steel (7), adjustable support (8), leading pipe (9), its characterized in that:

the grouting pipeline (1) is arranged on the grouting layer (2) and fixedly connected with the grouting layer (2) in an embedded mode, the upper surface of the jack (3) is provided with an I-shaped steel (7) and fixedly connected with the jack in an embedded mode, the lower surface of the adjusting shield machine (4) is provided with a track (6) and connected with the adjusting shield machine in a fitting mode, the lower surface of the adjustable support (8) is welded with the upper surface of the I-shaped steel (7), the upper surface of the adjustable support (8) is connected with the grouting layer (2), and the forepoling pipe (9) is arranged inside the grouting layer (2);

the adjusting shield machine (4) comprises a support forming device (401), a motor braking device (402), a transmission rod mechanism (403), a rotating mechanism (404), a connecting mechanism (405), a shield head device (406) and a clamping device (407), the support forming device (401) is internally provided with a motor braking device (402) which are fixedly connected together in a welding way, the transmission rod mechanism (403) is arranged inside the support forming device (401), the motor braking device (402) is in transition connection with the rotating mechanism (404) through a transmission rod mechanism (403), the connecting mechanism (405) is connected with the shield head device (406) in a matching way, the motor braking device (402) is in interference fit with the clamping device (407), the clamping device (407) is arranged inside the support forming device (401), the shield head device (406) is connected to the support forming device (401) in an embedded mode;

the support component device (401) comprises an alloy shell (4011), an installation base (4012), a sliding rail plate (4013), a magnetism isolating plate (4014) and a half-groove plate (4015), wherein the inner surface of the alloy shell (4011) is provided with the installation base (4012) and is connected together in a welding mode, the magnetism isolating plate (4014) is fixedly connected to the inner surface of the alloy shell (4011), one end of the half-groove plate (4015) is fixedly connected with the inner surface of the alloy shell (4011), an electric motor brake device (402) is arranged inside the alloy shell (4011), a transmission rod mechanism (403) is installed on the sliding rail plate (4013), a rotating mechanism (404) is arranged inside the alloy shell (4011), a connecting mechanism (405) is connected with the half-groove plate (4015) in a matching mode, and a shield head device (406) is installed on the alloy shell (4011) in an embedding mode, a clamping device (407) is arranged in the alloy shell (4011);

the motor brake device (402) comprises a brake groove shaft (4021), a motor (4022), a conductive strip (4023), a control connection box (4024), a cathode ball (4025), a cathode block (4026) and a fixed wheel (4027), the bottom end of the brake groove shaft (4021) is installed in the motor (4022) in an embedded mode, the right side surface of the motor (4022) is provided with a conductive bar (4023), the rear surface of the control connection box (4024) is fixedly arranged on the inner surface of the alloy shell (4011), the cathode block (4026) is nested with the cathode ball (4025), the fixed wheel (4027) is arranged in the alloy shell (4011), the cathode block (4026) is fixedly connected to the right end of the conductive strip (4023) in an adhesion mode, the brake groove shaft (4021) is connected with the transmission rod mechanism (403) in a matched mode, and the cathode ball (4025) is in interference fit with the clamping device (407);

the transmission rod mechanism (403) comprises a right-angle sawtooth groove rod (4031), a transmission gear (4032), a cross connecting rod group (4033), a sliding block (4034), a transmission rod (4035) and a sawtooth lifting rod (4036), the right-angle sawtooth groove rod (4031) is meshed and connected with the transmission gear (4032) through sawteeth, two ends of the cross connecting rod group (4033) are movably arranged on the front surface of the transmission gear (4032), the front surface of the sliding block (4034) is provided with a transmission rod (4035) and connected together in an embedded mode, the sawtooth lifting rod (4036) is connected with the sliding block (4034) in a matching way through the transmission rod (4035), the right-angle sawtooth groove rod (4031) is in interference fit with the brake groove shaft (4021), the sawtooth lifting rod (4036) is mutually matched with the transmission gear (4032) through sawteeth, and the sliding block (4034) is provided with a rotating mechanism (404);

the rotating mechanism (404) comprises a sliding rod (4041), a rotating disk (4042), a single-groove moving rod (4043), an adjusting block (4044), an adjusting rod group (4045), a connecting belt (4046), a rotating disk group (4047) and a rotating shaft (4048), the sliding rod (4041) is in transition connection with the single-groove moving rod (4043) through the adjusting rod group (4045), the front surface of the rotating disk (4042) is provided with the adjusting block (4044) and is fixedly connected in a bonding mode, the connecting belt (4046) is installed on the rotating disk group (4047) and is connected with the rotating disk group (4047) in a bonding mode, the rotating disk group (4047) is welded at the left end of the rotating shaft (4048), a shield head device (406) is installed on the rotating shaft (4048), the connecting mechanism (405) is arranged under the connecting belt (4046), the outer surface of the adjusting block (4044) and the inner surface of the single-groove moving rod (4043) are bonded with each other, the rotating disc (4042) is in transition connection with the rotating disc group (4047) through a connecting belt (4046), and a sliding block (4034) is arranged on the sliding rod (4041);

the connecting mechanism (405) comprises a fixed anode plate (4051), a top pillar (4052), a movable anode plate (4053), a shaft pillar (4054), a steel wire (4055), a first spring (4056) and a connecting rod (4057), wherein the fixed anode plate (4051) and the movable anode plate (4053) are embedded and sleeved, the outer surface of the top pillar (4052) is provided with a steel wire (4055) and connected together in a fitting manner, the top pillar (4052) is installed on the movable anode plate (4053) and fixedly connected in an embedding manner, the first spring (4056) is arranged inside the half-slot plate (4015), one end of the steel wire (4055) is fixedly connected to the connecting rod (4057), the connecting rod (4057) is installed on the shield head device (406), and the shaft pillar (4054) is mechanically connected with the movable anode plate (4053);

the shield head device (406) comprises an anode mounting plate (4061), a shield head rotating shaft (4062), a shield head mounting disc (4063), a large-sized milling cutter (4064), a shield head disc (4065) and a transmission belt (4066), the anode mounting plate (4061) is provided with a connecting rod (4057) which is movably connected together in an embedded mode, the shield head rotating shaft (4062) is in transition connection with the rotating shaft (4048) through a transmission belt (4066), the transmission belt (4066) is arranged on the outer surface of the shield head rotating shaft (4062) and is connected with the shield head rotating shaft in a fitting mode, the large milling cutter (4064) is fixedly arranged on the shield head disk (4065) in a welding mode, the shield head mounting disk (4063) is mechanically connected with the shield head rotating shaft (4062), a shield head mounting disc (4063) is arranged on the shield head disc (4065), and the shield head rotating shaft (4062) is connected with the clamping device (407) in a matching manner;

the clamping device (407) comprises a protective casing (4071), a friction mounting block (4072), a tension wire (4073), a one-way rod (4074), a spring mounting column (4075), a triangular adjusting plate (4076), a tension rod (4077), a matching rod (4078) and a second spring (4079), wherein the one-way rod (4074) is arranged inside the protective casing (4071) and movably mounted in an embedded mode, the friction mounting block (4072) is arranged on the one-way rod (4074) and fixedly connected with the two in a welding mode, the spring mounting column (4075) is provided with a second spring (4079), the matching rod (4078) is mounted on the triangular adjusting plate (4076) and movably connected in an embedding manner, the tension wire (4073) is fixedly connected with a tension rod (4077), and the tension rod (4077) is in transition connection with a matching rod (4078) through a triangular adjusting plate (4076);

when tunnel excavation construction needs to be carried out, the rotation state of the brake groove shaft is started by controlling the motor, the sliding block is driven to slide by the transmission rod and the sawtooth lifting rod through the matching relation of the right-angle sawtooth groove rod, the cross connecting rod group and the transmission gear, the rotation of the rotating disc is realized under the connection and the matching of the sliding rod, the adjusting rod group and the single-groove movable rod, the rotating disc group and the rotating shaft are driven to rotate through the connecting belt, finally, the rotation of the shield head device is realized through the transmission belt and the shield head rotating shaft, the first buffer force is formed by the anode mounting plate, the connecting rod and the first spring under the pressure applied in the tunnel excavation process, and the magnetic repulsion force formed by the steel wire, the movable anode plate and the fixed anode plate is taken as the second buffer force, so that the work of the whole device cannot be influenced by the shaking generated in the working engineering, when the emergency stop device is needed, the working personnel control the conductive block of the control connection box, so that the sliding of the cathode ball is influenced by the electromagnetic principle, the friction mounting block on the one-way rod is clamped on the rotating shaft of the shield head under the matching action of the tension line, the tension rod and the triangular adjusting plate, the rotation of the shield head is stopped, and the shield head is reset through the second spring.