CN220748314U - Support equipment for line-overlapping shield tunnel - Google Patents

Abstract

The utility model discloses the technical field of tunnel underground engineering construction, in particular to a support device for a stacked segment shield tunnel, which comprises a steel frame, a support device and a running device, wherein the support device is connected to the steel frame, the running device is arranged at the bottom of the steel frame and is used for abutting against a first segment of a lower shield tunnel, the support device can stretch out and draw back along the radial direction of the first segment, so that the support device can better abut against the first segment, meanwhile, the support device can stretch out and draw back along the radial direction of the first segment, so that the support device can be applied to shield tunnels with different radiuses, the application range is wider, the utilization value is higher, the steel frame can longitudinally run along the first segment through the running device, the support device can longitudinally run along the lower shield tunnel, and after a designated position is supported, the support device can be moved to the next designated position for support, thereby realizing recycling, and greatly reducing the construction cost.

Description

Support equipment for line-overlapping shield tunnel

Technical Field

The utility model relates to the technical field of tunnel underground engineering construction, in particular to a segment-overlapping shield tunnel supporting device.

Background

More and more highway tunnels and subway tunnels are constructed by adopting a shield method, and the tunnel constructed by adopting the shield method has the advantages of rapidness, safety, high quality, environmental protection, civilized construction and the like, and gradually becomes the first choice of various construction methods. The shield tunnel is composed of a plurality of circular pipe pieces, and each circular pipe piece is formed by assembling 6 pipe pieces. When two shield tunnels cannot be designed side by side left and right at a site limiting position, the two shield tunnels are generally designed into a mode of overlapping a line up and down, namely, overlapping a line segment shield tunnel, during construction, a lower shield tunnel is firstly constructed, and then an upper shield tunnel is constructed, as shown in fig. 1, an upper shield tunnel 210 is positioned above a lower shield tunnel 220, the lower shield tunnel 220 consists of a plurality of first segments 10, and during the shield construction of the upper shield tunnel 210, the shield tunneling machine 8 tunneling, the earth discharging, the grouting and other operations cause the deformation of soil around the lower shield tunnel 220, so that the original stress balance system of the lower shield tunnel 220 is broken, and a certain deformation exists in the first segment 10 structure of the lower shield tunnel 220, so that potential safety quality hazards exist; however, the traditional method uses a steel frame for supporting in the lower shield tunnel 220, so that the design is complex and heavy, the material consumption is large, the installation and the disassembly are complex, the repeated utilization rate is low, and a large amount of supporting cost investment is increased for a disposable device; the first segment 10 of the lower shield tunnel 220 is damaged to a certain extent, and cannot adapt to the lower shield tunnels 220 with different radiuses, so that the adaptability is low, the installation and the dismantling are difficult, the automation degree is low, the work efficiency is low, and the cost is high.

Such as Chinese patent: CN110030005a discloses a light circular protection support system for a shield tunnel, but when the device is used, the device can only be supported once, and when the device is repeatedly used, the device needs to be removed for reinstallation and use, so that the recycling efficiency is low; meanwhile, the patent is only applicable to common shield tunnels, and corresponding designs are not carried out under the condition that the segment stress and deformation of the segment shield tunnel are more complex, so that the pertinence of the segment shield tunnel is not strong; the device has low applicability to shield tunnels with different radiuses because of small adjusting range; the patent is a pure mechanical structure with low degree of automation; the construction method also has the problem that the whole process needs manual operation, so that the efficiency is low.

Disclosure of Invention

The utility model aims at: aiming at the problems that the segment of the shield tunnel below is easy to generate disturbance or deformation in the construction process of the shield tunnel above the shield tunnel of the segment-overlapped shield tunnel, and the existing supporting device has poor adaptability and small adjusting range, the support equipment for the segment-overlapped shield tunnel is provided.

In order to achieve the above object, the present utility model provides the following technical solutions:

The utility model provides a fold line segment shield tunnel supporting equipment, includes steelframe, strutting arrangement and running gear, strutting arrangement connects on the steelframe, running gear sets up the steelframe bottom, strutting arrangement is used for the first section of jurisdiction of butt, just strutting arrangement can follow the radial expansion of first section of jurisdiction, the steelframe can pass through running gear is along the vertical walking of first section of jurisdiction.

The utility model relates to a stacked segment shield tunnel supporting device, which comprises a steel frame, a supporting device and a traveling device, wherein the supporting device is connected to the steel frame, the traveling device is arranged at the bottom of the steel frame and is used for abutting against a first segment of a lower shield tunnel, the supporting device can stretch out and draw back along the radial direction of the first segment, the supporting device can better abut against the first segment, meanwhile, the supporting device can stretch out and draw back along the radial direction of the first segment, the supporting device can be applied to shield tunnels with different radiuses, the application range of the stacked segment shield tunnel supporting device is wider, the utilization value is higher, the steel frame can travel longitudinally along the first segment through the traveling device, and therefore the stacked segment shield tunnel supporting device can travel longitudinally along the first segment, namely longitudinally along the lower shield tunnel, compared with the supporting structure of a fixed position in the prior art, the stacked segment shield tunnel supporting device can travel longitudinally along the lower segment, after a designated position is supported, the stacked segment shield tunnel supporting device can be moved to the designated position through the traveling device, the designated position can be mounted to the designated position, the stacked segment shield tunnel can be mounted to the designated position, the stacked segment can be mounted to the designated position through the designated position, the shield tunnel supporting device can be mounted to the designated position, the stacked segment shield tunnel can be mounted to the down conveniently, and the stacked segment shield tunnel can be carried out, and the stacked segment can travel conveniently, and the stacked segment tunnel can pass through the stacked segment, the deformation of the lower shield tunnel can be effectively controlled in the shield construction process of the line-overlapping tunnel, and the method has important values for ensuring the shield construction safety, the normal traffic capacity, the structural safety and the smooth construction of peripheral engineering of the lower shield tunnel.

Preferably, the supporting device comprises a plurality of supporting components, all the supporting components are circumferentially arranged, the supporting components are connected with the steel frame, one ends of the supporting components are abutted to the first duct piece, and the supporting components can stretch and retract along the radial direction of the first duct piece. The support assembly is used for abutting the first duct piece, the support assembly can be used for supporting the first duct piece in a better manner along the radial expansion of the first duct piece, simultaneously duct pieces with different diameters can be adapted to along the radial expansion of the first duct piece through the support assembly, the support assembly is suitable for shield tunnels with different diameters, and further, all the support assemblies are circumferentially arranged, so that the first duct piece can be supported in a multipoint manner, and the support effect is better.

Preferably, the support assembly comprises a support steel tube, one end of the support steel tube is provided with a support screw rod, and the support screw rod is used for being abutted to the first duct piece. Because the support lead screw can extend or shorten, when the support lead screw butt is first section of jurisdiction, through the extension or the shortening of control support lead screw, come the effective support first section of jurisdiction, realize the deformation control to below shield tunnel, prop up the first section of jurisdiction inner wall of top below shield tunnel when the support lead screw extends to exert pressure, realize the effective prop up top to below shield tunnel.

Preferably, the support assembly further comprises an adjusting device for adjusting the telescopic amount of the support screw. The automatic adjustment of the support screw rod is realized through the adjusting device, for example, when the first duct piece is deformed under pressure, and the support screw rod is compressed to exceed the limit value, the support screw rod is adjusted to extend through the adjusting device, so that the first duct piece is supported, and the purpose of automatically controlling the deformation of the first duct piece is achieved.

Preferably, the support assembly further comprises a limiting steel pipe, the limiting steel pipe is fixed on the steel frame, and the support steel pipe penetrates through the limiting steel pipe and abuts against the first duct piece. The limiting steel pipe is arranged to play a limiting role on the supporting steel pipe, so that the supporting steel pipe can better support the first duct piece in a butt mode, meanwhile, the limiting steel pipe plays a positioning effect on the supporting steel pipe, bears the self gravity of the supporting steel pipe and the supporting screw rod, and transmits the self gravity of the supporting steel pipe and the supporting screw rod to the steel frame.

Preferably, the supporting device further comprises an intersection point connecting steel disc, one end of the supporting steel tube is connected with the intersection point connecting steel disc through a bolt, the other end of the supporting steel tube penetrates through the limiting steel tube and abuts against the first duct piece, and the supporting steel tube is uniformly and symmetrically arranged along the circumference of the intersection point connecting steel disc. Because the support steel pipe passes through the limit steel pipe and is connected with the intersection point connecting steel disc through the bolt, in the actual operation process, the bolt of the support steel pipe and the intersection point connecting steel disc is loosened, so that the support steel pipe is conveniently pulled out of the limit steel pipe, the support steel pipe is conveniently installed and detached, the support steel pipe is very convenient to replace when being installed and damaged, meanwhile, the support rigidity of the support steel pipe can be increased by arranging the limit steel pipe, the deformation degree of the support steel pipe after being pressed is reduced, and the support steel pipe can better support the first duct piece; and the supporting steel pipes are uniformly and symmetrically arranged along the circumference of the steel disc connected by the intersection points, even if the supporting components are uniformly and symmetrically arranged along the circumference of the steel disc connected by the intersection points, the pressures born by a pair of symmetrically arranged supporting components are mutually offset, so that the supporting devices are mutually offset by the pressure of the first duct piece in the supporting process of the shield tunnel below, the pressure of the steel frame born by the supporting devices in the supporting process of the first duct piece is reduced, the stress of the steel frame is reduced, the deformation of supporting equipment is reduced, the steel consumption of the steel frame is effectively reduced, and the manufacturing cost of the supporting equipment is saved.

Preferably, the running device comprises wheels, a sleeper and a track, wherein the wheels are connected to the bottom of the steel frame, the sleeper is arranged at the bottom of the first duct piece, the track is longitudinally paved on the sleeper, and the electric wheels can longitudinally run along the track. The supporting device is brought to the traveling device to travel in the shield tunnel below, so that the supporting device can travel to different designated positions to effectively support the shield tunnel below, thereby realizing the recycling of the supporting device, greatly reducing the construction cost, and simultaneously being convenient for the disassembly and subsequent maintenance of the supporting device due to the traveling capability of the supporting device.

Preferably, the lifting device further comprises a lifting controller, wherein the lifting controller is connected to the bottom of the steel frame and can vertically stretch out and draw back. Through setting up the lifting controller that can vertically stretch out and draw back at the steelframe to realize supporting equipment's vertical altitude mixture control, adjust supporting equipment's vertical altitude through the lifting controller, be convenient for supporting equipment support first section of jurisdiction and running gear along the conversion between the walking of first section of jurisdiction at strutting arrangement, even if be favorable to supporting equipment to support the conversion between state and the running state.

Preferably, the steel frame comprises a plurality of steel frameworks which are longitudinally connected, and the side surface of each steel framework is provided with the supporting device. The supporting device is arranged on the side face of each steel skeleton, so that the first duct piece is supported at multiple points in the longitudinal direction.

Preferably, adjacent steel skeletons are connected through a longitudinal connecting rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model relates to a stacked segment shield tunnel supporting device, which comprises a steel frame, a supporting device and a traveling device, wherein the supporting device is arranged on the steel frame, the traveling device is connected to the bottom of the steel frame, the supporting device is used for abutting against a first segment of a lower shield tunnel, and can longitudinally travel along the lower shield tunnel, compared with a supporting structure of a fixed position in the prior art, the supporting device can better abut against the first segment, and simultaneously can longitudinally travel along the lower shield tunnel, the supporting device can be applied to shield tunnels with different radiuses due to the fact that the supporting device can radially extend and retract along the first segment, the use range of the stacked segment shield tunnel supporting device is wider, the utilization value is higher, and further, the steel frame can longitudinally travel along the first segment through the traveling device, so that the stacked segment shield tunnel supporting device can longitudinally travel along the first segment, namely longitudinally travel along the lower shield tunnel, compared with the supporting structure of the fixed position in the prior art, the stacked segment shield tunnel supporting device can longitudinally travel along the lower shield tunnel, after a designated position is supported, the stacked segment shield tunnel can be repeatedly mounted to the designated position through the traveling device, the designated position can be repeatedly mounted to the designated position, and the shield tunnel is conveniently carried out through the shield tunnel supporting device after the stacked segment is mounted to the designated position, the deformation of the lower shield tunnel can be effectively controlled in the shield construction process of the line-overlapping tunnel, and the method has important values for ensuring the shield construction safety, the normal traffic capacity, the structural safety and the smooth construction of peripheral engineering of the lower shield tunnel.

Description of the drawings:

fig. 1 is a schematic diagram of a segment-stacked shield tunnel in the background art.

Fig. 2 is a structural elevation view of the support apparatus of the present utility model.

Fig. 3 is a structural elevation view of the support apparatus of the present utility model.

Fig. 4 is a partial enlarged view at a of fig. 3.

Fig. 5 is an elevational schematic view of the support device of the present utility model.

Fig. 6 is a schematic elevation view of a steel frame according to the present utility model.

Fig. 7 is a side view of the structure of the support apparatus of the present utility model.

Fig. 8 is a partial enlarged view at B of fig. 7.

Fig. 9 is a structural side view of the support apparatus of the present utility model.

Fig. 10 is a schematic view of a steel frame structure according to the present utility model.

FIG. 11 is a schematic diagram of the cooperation of the steel frame and the supporting device.

Fig. 12 is a first supporting apparatus construction step (supporting apparatus initial supporting schematic) of the present utility model.

Fig. 13 is a schematic view of a second step of the support apparatus of the present utility model (shield tunneling to a first apparatus midpoint location).

Fig. 14 is a third step of the support apparatus construction of the present utility model (schematic view after the support apparatus is advanced by one shield tunneling step).

The marks in the figure: the device comprises a 1-steel frame, a 11-steel skeleton, a 101-vertical rod, a 102-top longitudinal rod, a 103-bottom longitudinal rod, a 14-longitudinal connecting rod, a 15-diagonal rod, a 2-supporting device, a 21-supporting component, a 211-supporting steel pipe, a 212-supporting screw rod, a 213-limiting steel pipe, a 22-intersection connecting steel disc, a 3-running device, 32-wheels, 33-sleepers, 34-tracks, 4-adjusting devices, a 41-screw rod controller, a 42-strain sensor, a 43-displacement sensor, a 5-lifting controller, a 6-information transmission receiver, a 7-centralized control system, a 71-computer, a 72-power supply, an 8-shield machine, a 9-shield cutter head, a 10-first segment, a 110-rubber pad, a 120-alarm, a 130-second segment, a 210-upper shield tunnel, a 220-lower shield tunnel, 310-first equipment, 320-second equipment and 330-third equipment.

Detailed Description

The present utility model will be described in further detail with reference to examples and embodiments. It should not be construed that the scope of the above subject matter of the present utility model is limited to the following embodiments, and all techniques realized based on the present utility model are within the scope of the present utility model.

Example 1

As shown in fig. 2-7, the support device for the segment-stacked shield tunnel according to the embodiment includes a steel frame 1, a support device 2 and a running device 3, wherein the support device 2 is connected to the steel frame 1, the running device 3 is disposed at the bottom of the steel frame 1, the support device 2 is used for abutting against the first segment 10, the support device 2 can stretch out and draw back along the radial direction of the first segment 10, and the steel frame 1 can longitudinally run along the first segment 10 through the running device 3.

The support device for the stacked segment shield tunnel according to the embodiment comprises a steel frame 1, a support device 2 and a running device 3, wherein the support device 2 is arranged on the steel frame 1, the running device 3 is connected to the bottom of the steel frame 1, the support device 2 is used for abutting against a first segment 10 of a lower shield tunnel 220, the support device 2 can stretch out and draw back along the radial direction of the first segment 10, the support device 2 can better abut against the first segment 10, meanwhile, the support device 2 can be applied to the first segment 10 with different radiuses due to the fact that the support device 2 can stretch out and draw back along the radial direction of the first segment 10, the support device 2 can adapt to the lower shield tunnel 220 with different radiuses, the use range of the support device for the stacked segment shield tunnel support device according to the utility model is wider, the use value is higher, the steel frame 1 can further run along the first longitudinal direction through the running device 3, the stacked segment shield tunnel support device according to the utility model can run along the first segment 10 longitudinally, even if the support device can run along the lower segment 220 longitudinally, compared with the conventional support device for the fixed position of the support device for the stacked segment shield tunnel 220 can be mounted at the designated position, the designated position of the lower shield tunnel can be realized, the cost is reduced when the support device for the stacked segment shield tunnel is mounted at the designated position of the lower shield tunnel is mounted, the support device is driven to the appointed position of the lower shield tunnel 220 through the travelling device 3 for supporting, and the support device 3 is driven out of the lower shield tunnel 220 after the support is completed.

In this application, the longitudinal direction is along the length direction of the lower shield tunnel 220.

In a preferred manner, as shown in fig. 3, the supporting device 2 comprises a plurality of supporting components 21, all the supporting components are circumferentially arranged, namely, during construction, the supporting components 21 are circumferentially placed inside a tunnel pipe segment, the supporting components 21 are connected with the steel frame 1, one end of each supporting component 21 is abutted against the first pipe segment 10, the supporting components 21 can stretch out and draw back along the radial direction of the first pipe segment 10, the supporting components 21 are abutted against the first pipe segment 10 through the supporting components 21, the supporting components 21 can be better abutted against the first pipe segment 10 through the supporting components 21 which can stretch out and draw back along the radial direction of the first pipe segment 10, and meanwhile, the supporting components 21 can stretch out and draw back along the radial direction of the first pipe segment 10 to adapt to pipe segments with different diameters, so that the supporting device is suitable for shield tunnels with different diameters, further, all the supporting components 21 are circumferentially arranged, so that the first pipe segment 10 can be abutted against at multiple points, and the supporting effect is better

As shown in fig. 3, each supporting device 2 is composed of a plurality of supporting components 21 located on the same cross section, each supporting component 21 is abutted against the first duct piece 10, so that the first duct piece 10 is supported in a circumferential multi-point manner, further, each supporting device 2 comprises 12 supporting components 21, wherein 3 supporting components 21 are connected to the top of the steel frame 1, 3 supporting components 21 are respectively connected to two sides of the steel frame 1, the supporting components 21 arranged on two sides of the steel frame 1 are symmetrically arranged, 3 supporting components 21 are connected to the bottom of the steel frame 1, and the plurality of supporting components 21 are arranged in the circumferential direction of the steel frame 1, so that the first duct piece 10 can be stably supported, the supporting devices 2 cannot rotate on the cross section, and the stability of the first duct piece 10 is enhanced.

In a preferred manner, as shown in fig. 3, the support assembly 21 includes a support steel tube 211, and one end of the support steel tube 211 is provided with a support screw 212, where the support screw 212 is used to abut against the first segment 10. Because the support screw rod 212 can be extended or shortened, when the support screw rod 212 abuts against the first segment 10, the first segment 10 is effectively supported by controlling the extension or shortening of the support screw rod 212, so as to realize deformation control of the lower shield tunnel 220, for example, when the support screw rod 212 extends, the support screw rod supports against the inner wall of the first segment 10 of the lower shield tunnel 220, and applies pressure, so as to realize effective support against the lower shield tunnel 220.

In a preferred manner, as shown in fig. 3-4, the supporting assembly 21 further includes an adjusting device 4, where the adjusting device 4 is disposed at the supporting screw rod 212, and the adjusting device 4 is used to automatically adjust the expansion and contraction amount of the supporting screw rod 212, and the adjusting device 4 is used to implement automatic adjustment of the supporting screw rod 212, for example, when the supporting screw rod 212 is compressed to exceed a limit value by compression deformation of the first segment 10, the adjusting device 4 is used to automatically adjust the extension of the supporting screw rod 212, so as to support the first segment 10, thereby achieving the purpose of automatically controlling the deformation of the first segment 10.

As shown in fig. 4, the adjusting device 4 is composed of a screw controller 41, a strain sensor 42 and a displacement sensor 43, wherein the screw controller 41 is composed of a microcomputer for information processing and control, and is arranged inside the support steel tube 211; the strain sensor 42 is mounted on the support screw 212, the strain sensor 42 is used for monitoring strain information of the support screw 212 and transmitting the monitored strain information to the screw controller 41, the screw controller 41 calculates pressure born by the support screw 212 according to the strain information, judges whether the pressure exceeds an alarm value of the bearing capacity of the support screw 212, and sends an alarm signal when the pressure exceeds the alarm value; the displacement sensor 43 is installed at the top that the support screw 212 is close to first section of jurisdiction 10, and displacement sensor 43 is used for monitoring the displacement information of support screw 212 to give screw controller 41 with displacement information, when the displacement is greater than the limit value that sets for, namely support screw 212 compressed value exceeds the limit value, screw controller 41 is according to displacement information automatically regulated support screw 212 extension, effectively supports first section of jurisdiction 10, realizes the deformation control to shield tunnel 220 below.

In a preferred manner, the supporting screw rod 212 is an electric screw rod, one end of the electric screw rod is connected to the top of the supporting steel tube 211, the electric screw rod controls the screw rod to extend or shorten through a starting motor of the electric screw rod, when the screw rod extends, the electric screw rod can prop against the inner wall of the first segment 10 of the lower shield tunnel 220, pressure is applied, the prop against the lower shield tunnel is realized, and if necessary, fine adjustment of the position of the first segment 10 of the lower shield tunnel 220 can be performed.

In a preferred manner, as shown in fig. 4, the end surface of each support screw 212 contacting the first segment 10 is provided with a rubber pad 110, and the rubber pad 110 plays a role of dispersing stress and protecting the screw of the support screw 212 from the first segment 10.

In a preferred manner, as shown in fig. 3, the supporting assembly 21 further includes a limiting steel pipe 213, the limiting steel pipe 213 is fixed on the steel frame 1, the supporting steel pipe 211 passes through the limiting steel pipe 213 and abuts against the first pipe piece 10, the limiting steel pipe 211 is provided with the limiting steel pipe 213 to play a limiting role, and the supporting steel pipe 211 cannot rotate due to the fact that the supporting steel pipe 211 passes through the limiting steel pipe 213 and can only compress or stretch along the axial direction of the limiting steel pipe 213, so that the supporting steel pipe 211 can better abut against the first pipe piece 10, meanwhile, the limiting steel pipe 213 plays a positioning effect on the supporting steel pipe 211 and bears self gravity of the supporting steel pipe 211 and the supporting screw 212, and the self gravity of the supporting steel pipe 211 and the supporting screw 212 is transmitted to the steel frame 1.

As shown in fig. 6, the limiting steel pipes 213 are connected and fixed to the steel frame 1 by bolts, and the limiting steel pipes 213 are located at the top and bottom of the steel frame 1 and on both sides of the steel frame 1.

As shown in fig. 3 and 5, the supporting device 2 further includes an intersection connecting steel disc 22, one end of the supporting steel tube 211 is in pin connection with the intersection connecting steel disc 22, the other end of the supporting steel tube 211 passes through the limiting steel tube 213 and abuts against the first duct piece 10, and the supporting steel tube 211 is uniformly and symmetrically arranged along the circumferential direction of the intersection connecting steel disc 22, and as the supporting steel tube 211 passes through the limiting steel tube 213 and is connected with the intersection connecting steel disc 22 in a pin manner, in the actual operation process, the pin positions of the supporting steel tube 211 and the intersection connecting steel disc 22 are loosened, so that the supporting steel tube 211 is conveniently pulled out from the limiting steel tube 213, and further, the supporting steel tube 211 is conveniently installed and detached, and the supporting steel tube 211 needs to be replaced when being installed and damaged.

And the supporting steel pipes 211 are uniformly and symmetrically arranged along the circumference of the intersection point connecting steel disc 22, one end of the supporting steel pipes 211 is connected with the intersection point connecting steel disc 22 through bolts, the other end of the supporting steel pipes 211 passes through the limiting steel pipes 213 and is abutted against the first duct piece 10, the supporting steel pipes 211 are uniformly and symmetrically arranged along the circumference of the intersection point connecting steel disc 22, even if the supporting components 21 are uniformly and symmetrically arranged along the circumference of the intersection point connecting steel disc 22, the pressures born by the symmetrically arranged supporting components 21 are mutually offset, the supporting device 2 is mutually offset under the supporting process of the shield tunnel 220 below, the pressure born by the supporting device 2 in the supporting process of the first duct piece 10 by the steel frame 1 is reduced, the stress of the steel frame 1 is reduced, the deformation of supporting equipment is reduced, the steel consumption of the steel frame 1 is effectively reduced, and the manufacturing cost of the supporting equipment is saved.

As shown in fig. 3, the center of the intersection point connecting steel disc 22 coincides with the intersection point of the supporting component 21 on the supporting device 2, and receives the pressure transmitted by the supporting component 21; the support steel tube 211 is far away from one end of the first duct piece 10 and is connected with the intersection point connecting steel disc 22 through a bolt, the other end of the support steel tube 211 penetrates through the limiting steel tube 213 and then is connected with the support screw rod 212, a plurality of protruding parts are circumferentially arranged on the side face of the intersection point connecting steel disc 22, the number of the protruding parts corresponds to that of the support steel tube 211, the protruding parts are inserted into the end parts of the support steel tube 211, namely the support steel tube 211 is sleeved on the protruding parts of the intersection point connecting steel disc 22, and therefore bolt connection between the support steel tube 211 and the intersection point connecting steel disc 22 is achieved.

As shown in fig. 5, in the actual construction process, the plurality of support assemblies 21 on each cross section are radially, uniformly and symmetrically arranged, one end of each support assembly 21 is intersected at an intersection point to be connected with the steel disc 22, the contact point between the other end of each support assembly 21 and the first tube sheet 10 is a fulcrum, the fulcrum is circumferentially arranged along the first tube sheet 10, so that the support assemblies 21 are centrally and symmetrically arranged, and accordingly the pressures of the first tube sheet 10 received by the symmetrically arranged support assemblies 21 offset each other, the pressures of the first tube sheet 10 received by the support devices 2 in the support process of the first tube sheet 10 offset each other, further, the steel frame 1 does not bear the pressure generated by the support devices 2 in the support process of the first tube sheet 10, further, the included angle between adjacent support assemblies 21 is θ, and when the total number of the support assemblies 21 is 12, the included angle between the adjacent support assemblies 21 is 30 °.

In a preferred manner, as shown in fig. 7-8, the running gear 3 comprises wheels 32, sleepers 33 and rails 34, the wheels 32 are connected to the bottom of the steel frame 1, as shown in fig. 6, the sleepers 33 are arranged on the bottom of the first segment 10, as shown in fig. 5, the rails 34 are longitudinally laid on the sleepers 33, as shown in fig. 5, and the wheels 32 can run longitudinally along the rails 34. The supporting equipment is brought to travel in the lower shield tunnel 220 through the traveling device 3, so that the supporting equipment can travel to different designated positions to effectively support the lower shield tunnel 220, thereby realizing the recycling of the supporting equipment, greatly reducing the construction cost, and simultaneously being convenient for the installation and the disassembly of the supporting equipment, the subsequent maintenance and the like due to the traveling capability of the supporting equipment.

The sleeper 33 is horizontally and transversely arranged at the bottom of the lower shield tunnel 220, namely the bottom of the first duct piece 10, two rails 34 are longitudinally arranged and horizontally paved on the sleeper 33, the rails 34 are connected with the sleeper 33 through bolts, and a buffer point is arranged at the contact position of the sleeper 33 and the first duct piece 10 for protection, so that the sleeper 33 is prevented from damaging the first duct piece 10; wheels 32 are symmetrically arranged at the bottoms of two sides of the steel frames 1, one steel frame 1 is provided with two rows of wheels 32, 2-4 wheels are adopted on one side, the wheels 32 are connected with the steel frame 1 by bolts and placed on the rails 34, the weight of the whole supporting device is borne, and the wheels 32 rotate to drive the supporting device to move on the rails 34.

The rails 34 are located at two sides of a vertical line passing through the center of the lower shield tunnel 220, and are symmetrically arranged, so that the circle center of the cross point connecting steel disc 22 of the supporting device on the rails 34 is located on the vertical line passing through the center of the lower shield tunnel 220. The center of the intersection point of the top surface of the track 34 and the center of the intersection point connecting the steel disc 22 is a height difference H, the height difference between the top surface of the track 34 and the center of the lower shield tunnel 220 is H, the height difference between the center of the intersection point connecting the steel disc 22 and the center of the lower shield tunnel 220 is h1=h-H, H1 is larger than 0, and H1 is preferably set to be 5cm.

In the present application, the spatial positions of the support device 2 and the running device 3 do not intersect.

In a preferred mode, as shown in fig. 8, the device further comprises a lifting controller 5, the lifting controller 5 is connected to the bottom of the steel frame 1, the lifting controller 5 can vertically stretch out and draw back, the lifting controller 5 capable of vertically stretching out and draw back is arranged on the steel frame 1, so that vertical height adjustment of the supporting device is realized, the vertical height of the supporting device is adjusted through the lifting controller 5, and the supporting device is convenient to support the first duct piece at the supporting device 2 and move along the first duct piece 10, namely, the supporting device is convenient to move between a supporting state and a walking state.

The lifting controller 5 vertically lifts the supporting device by a certain height, wherein the height is a height difference h1 between the center of the intersection point connecting the steel disc 22 and the center of the lower shield tunnel 220, and the center of the intersection point connecting the steel disc 22 coincides with the center of the lower shield tunnel 220, so that centering is completed; before moving forward after the supporting equipment is supported, the supporting equipment is firstly lowered by a certain height through the lifting controller 5, the height is a height difference h1 between the circle center of the intersection point connecting steel disc 22 and the center of the shield tunnel, the supporting equipment is vertically lowered, the wheels 32 are in contact with the track 34 and bear the whole weight of the supporting equipment, then the wheels 32 are started, the supporting equipment is used for walking for a preset distance, then the supporting equipment is stopped, and the next supporting is carried out.

In a preferred manner, as shown in fig. 10, the lifting controller 5 is vertically installed at the bottom of the steel frame 1, and the lifting or lowering of the supporting device is realized through the vertical extension and retraction of the lifting controller 5. The lifting controllers 5 are symmetrically arranged at the bottoms of two sides of the steel frame 1, two rows of the lifting controllers 5 are arranged on one supporting device, 3-6 lifting controllers are preferably adopted on one side, as shown in fig. 10, one lifting controller is arranged at each of two ends, a plurality of lifting controllers are arranged in the middle of the lifting controllers, the lifting controllers 5 are connected with the steel frame 1 through bolts, wherein the lifting controllers 5 are electric screw rods, the lifting controllers 5 are supported on the top surface of a track 34 when being extended, the whole weight of the supporting device is borne, the screw rods of the lifting controllers 5 are synchronously extended, lifting of the supporting device can be achieved, and the center of a circle of an intersection point connecting the steel disc 22 coincides with the center of a shield tunnel 220 below.

In a preferred manner, as shown in fig. 9, the device further comprises an alarm 120, the alarm 120 is installed inside the steel frame 1, the alarm 120 is used for receiving monitoring information of the adjusting device 4 and responding, for example, the screw rod controller 41 calculates the pressure born by the support screw rod 212 according to the strain information, and judges whether the pressure exceeds an alarm value of the bearing capacity of the support screw rod 212, when the alarm value is exceeded, an alarm signal is sent, and when the alarm signal is sent, the alarm 120 receives the alarm signal and starts to alarm.

In a preferred manner, as shown in fig. 9, the shield displacement and support device further comprises an information transmission receiver 6 and a centralized control system 7, wherein the information transmission receiver 6 and the centralized control system 7 are arranged inside the steel frame 1, and the information transmission receiver 6 is responsible for transmitting and receiving shield displacement and support device operation information, can receive wireless and limited signals and can transmit the information to the centralized control system 7.

The centralized control system 7, as shown in fig. 9, includes a computer 71 and a power supply 72, where the computer 71 is used to compile and execute a control program, receive signals of the supporting device 2, the running device 3, and the lifting controller 5, perform data processing, control automation control of each device, such as controlling the screw rod controller 41 of the adjusting device 4, so as to control expansion and contraction of the supporting screw rod 212, such as controlling rotation and steering of the wheel 32 of the running device 3, to move the supporting apparatus to a next designated supporting place, such as controlling vertical expansion and contraction of the lifting controller 5, and the power supply 72 is used to provide required power for the supporting device 2, the running device 3, the adjusting device 4, the lifting controller 5, the information receiver 6, and the computer 71 is further provided with a control panel, where the control panel is used to implement manual control of operation of each device.

Example 2

As shown in fig. 7 and 10, on the basis of embodiment 1, a support device for a segment-stacked shield tunnel according to this embodiment includes a plurality of steel skeletons 11 connected longitudinally, each steel skeleton 11 side is provided with a support device 2, and each steel skeleton 11 side is provided with a support device 2, so that a plurality of steel skeletons 11 are connected longitudinally and side by side to support a first segment 10 in a longitudinal direction, support assemblies 21 of each support device 2 are located on the sides of the steel skeletons and in one-to-one correspondence, so as to support the first segment 10 of a shield tunnel 220 below, and a distance between adjacent support devices 2 is the length of each ring of the first segment 10, so that each support device 2 can support a ring of the first segment 10.

As shown in fig. 10, adjacent steel frameworks 11 are connected in a direction through a longitudinal connecting rod 14, the longitudinal connecting rod 14 is connected to the top and the bottom of the steel frameworks 11, further, inclined rods 15 are further arranged between the adjacent steel frameworks 11, and the middle parts of the two inclined rods 15 are hinged together to form a scissor brace; the steel frameworks 11 are longitudinally arranged side by side and are connected with the diagonal rods 15 through longitudinal connecting rods 14 to form the steel frame 1.

In a preferred manner, as shown in fig. 6, the steel skeleton 11 comprises two side uprights 101, a top longitudinal bar 102 and a bottom longitudinal bar 103, and the two side uprights 101, the top longitudinal bar 102 and the bottom longitudinal bar 103 form a rectangular steel skeleton 11.

When the supporting device 2 is connected with the steel frame 1 as shown in fig. 5, the limiting steel pipes 213 are connected and fixed with the steel frame 11 of the steel frame 1 through bolts, the limiting steel pipes 213 are located on the upright posts 101, the top longitudinal rods 102 and the bottom longitudinal rods 103 of the steel frame 11, and as shown in fig. 3, the supporting component 21 is fixed on the steel frame 11 through the limiting steel pipes 213.

As shown in fig. 7 to 8, when the running gear 3 is connected with the steel frame 1, the wheels 32 are symmetrically installed on the longitudinal horizontal bars 14 at the bottoms of both sides of the steel frame 1 or on the vertical bars 101 at the bottoms of both sides of the steel frame 1.

As shown in fig. 8, when the lifting controller 5 is connected with the steel frame 1, the lifting controller 5 is mounted on the longitudinal horizontal rods 14 at the bottoms of the two sides of the steel frame 1 or on the vertical rods 101 at the bottoms of the two sides of the steel frame 1.

Example 3

As shown in fig. 2 to 14, this embodiment also discloses a method for using a stacked segment shield tunnel supporting device, which includes the steps of:

Step one: the sleeper 33 and the track 34 are installed in the lower shield tunnel 220, as shown in fig. 7, the initial position affecting the lower shield tunnel 220 when the upper shield tunnel 210 is constructed is determined through calculation or evaluation, the sleeper 33 and the track 34 are paved forwards from the initial position, the track 34 with the length not less than the length of the supporting equipment is paved backwards for the initial installation and debugging of the supporting equipment, wherein the forward direction refers to the tunneling direction of the upper shield tunnel 210, and the backward direction refers to the direction opposite to the tunneling direction of the upper shield tunnel 210.

As shown in fig. 5, the sleeper 33 and the track 34 are paved on the first segment 10 of the lower shield tunnel 220, the two tracks 34 are arranged in parallel, the elevation of the two tracks 34 is the same on the same cross section, and the installation is stable;

the sleeper 33 is horizontally and transversely arranged on the first duct piece 10 at the bottom of the lower shield tunnel 220, two rails 34 are longitudinally arranged and are horizontally paved on the sleeper 33 in parallel, the two rails are connected by bolts, and a buffer pad is arranged at the contact position of the sleeper 33 and the first duct piece 10 to prevent the first duct piece 10 from being damaged; the wheels 32 are symmetrically arranged at the bottoms of two sides of the steel frame 1, two rows of wheels are arranged on one supporting device, 2-4 wheels are adopted on one side, the wheels are connected with the steel frame 1 through bolts, the wheels 32 are placed on the track 34 to bear the whole weight of the supporting device, and the wheels 32 rotate to drive the supporting device to move on the track 34;

Further, the rails 34 are located at two sides of a vertical line passing through the center of the lower shield tunnel 220, and are symmetrically arranged, so that the intersection point of the supporting devices located on the rails 34 is connected with the center of the steel disc 22 and located on the vertical line passing through the center of the lower shield tunnel 220, the center of the steel disc 22 is connected with the top surface of the rails 34, the height difference between the top surface of the rails 34 and the center of the lower shield tunnel 220 is H, the height difference between the center of the steel disc 22 and the center of the lower shield tunnel 220 is h1=h-H, H1 is greater than 0, and H1 can be set to be 5cm.

Step two: installing supporting equipment in the lower shield tunnel 220, as shown in fig. 12, manufacturing each component of the supporting equipment in a factory or a manufacturer and transporting to an initial supporting position of the supporting equipment in the lower shield tunnel 220, installing three supporting equipment on a track 34, and dividing the supporting equipment into a first equipment 310, a second equipment 320 and a third equipment 330 according to the front-back sequence of the tunneling direction of the upper shield tunnel 210;

further, debugging is carried out after the supporting equipment is assembled, and each system is in a normal working state through debugging;

as shown in fig. 7 to 8, the support screw 212 of the support assembly 21 is in a contracted state and the lift controller 5 is in a contracted state after the completion of the adjustment of the support apparatus, and the support apparatus is supported on the rails 34 by the wheels 32.

Step three: the first supporting device is carried out, as shown in fig. 12, the front end of the first device 310 is moved to the initial position which affects the lower shield tunnel 220 when the upper shield tunnel 210 is constructed and determined by calculation and evaluation through manual control, the clear distances among the three supporting devices, namely the first device 310, the second device 320 and the third device 330, are determined according to analysis and evaluation, the clear distances between the two adjacent supporting devices are integral multiples of the longitudinal length of the single-ring first segment 10, and the first device 310 is braked after being moved in place.

Wherein: as shown in fig. 12, the clear distance between the first device 310 and the second device 320 and the clear distance between the second device 320 and the third device 330 may be equal or unequal, and when the clear distance between the adjacent support devices is 1 time the longitudinal length of the single-ring first segment 10, because the spacing between the support devices 2 on the support devices is 1 time the longitudinal length of the single-ring first segment 10, the total support of the first segment 10 by the three support devices can be realized; when the clear distance between adjacent support devices is 2-4 times of the longitudinal length of the single-ring first duct piece 10, the spacing between the three support devices at 2-4 rings of the first duct piece 10 can be realized for support, and the clear distance between the adjacent support devices can be adjusted as required in the cyclic use of the later support devices;

Further, when the supporting devices are supported for the first time, the lifting controller 5 of each supporting device is started to lift each supporting device by a preset height h1 (set to a fixed value, such as 5 cm), so that the circle center of the intersection point connecting steel disc 22 coincides with the center of the shield tunnel 220 below;

after the supporting equipment is lifted, simultaneously starting the supporting screw rods 212 of the supporting devices 2 of each supporting equipment, enabling the supporting screw rods 212 to unscrew and extend, enabling the front ends of the supporting screw rods 212 to contact and tightly prop up the first duct piece 10, enabling the supporting screw rods 212 to contact with the first duct piece 10, and pre-applying a certain propping force, wherein the propping force can be set to be 0.1kN; and when the propping force is reached, the extension of the support screw rod 212 is stopped, and the initial support of the support equipment is completed.

After the initial support is completed, the screw rod controller 41, the strain sensor 42, the displacement sensor 43 and the alarm 120 of the adjusting device 4 start to work, when the shield tunneling construction of the upper shield tunnel 210 leads to the deformation of the first segment 10 of the lower shield tunnel 220, the supporting screw rod 212 of the supporting device 2 is stressed to be increased, so that the supporting screw rod 212 is compressed, the displacement sensor 43 transmits the deformation information of the first segment 10 to the screw rod controller 41 after the deformation of the first segment 10, the screw rod controller 41 automatically adjusts the supporting screw rod 212 according to the strain information, so that the supporting screw rod 212 is stretched and gives a larger supporting force to the first segment 10 to offset the deformation of the first segment 10, until the strain information transmitted by the signal of the displacement sensor 43 is zero, and the automatic adjustment is continuously carried out until the shield tunneling of the upper shield tunnel 210 passes through the supporting position, namely, the shield tunneling is carried out to the supporting position of the next supporting equipment.

Step four: as shown in fig. 13, the shield tunneling of the upper shield tunnel 210 is stopped after reaching the midpoint of the first device 310: under the condition that the supporting equipment supports for the first time, the shield machine 8 of the upper shield tunnel 210 is driven until the shield cutterhead 9 reaches the middle position of the first equipment 310, and stops, and a stop signal is sent out.

Step five: as shown in fig. 14, three supporting devices are advanced by one shield tunneling step and then supported again: after each supporting device receives a stop signal that the shield tunneling reaches the midpoint of the first device 310, the second device 320 and the third device 330 are sequentially and automatically completed to move one shield tunneling step distance and complete supporting, wherein only one supporting device is moved at a time, namely only one supporting device is in an unloading state at a time, and the other two supporting devices are in supporting states, so that deformation of the first segment 10 of the shield tunnel 220 below is effectively prevented.

In this embodiment, the length of one shield tunneling step is preferably set to be the distance between the longitudinal center position of the second device 320 and the longitudinal center position of the first device 310, i.e., the shield tunneling step is equal to 0.5 times the sum of the lengths of the first device 310 and the second device 320 plus the clear distance between the first device 310 and the second device 320;

Further, the specific support device advancing and supporting steps are as follows:

1) Unloading, advancing, supporting the first device 310; starting the supporting screw rod 212 of the supporting device 2 to retract and finish unloading; activating the lifting control 5 to retract so that the wheels 32 of the support device fall on the rails 34; the wheels 32 are started to walk forward for one shield tunneling step distance; starting the lifting controller 5 to extend, so that the supporting equipment is lifted by a preset height h1, and the circle center of the intersection point connecting steel disc 22 coincides with the center of the lower shield tunnel 220; starting a supporting screw rod 212 of the supporting device 2 to extend, enabling the front end of the supporting screw rod 212 to contact and tightly prop up the first duct piece 10 of the shield tunnel 220 below, enabling the supporting screw rod 212 to contact with the first duct piece 10 and pre-applying a certain propping force, wherein the propping force can be set to be 0.1kN, and supporting the first equipment 310;

2) Unloading, advancing, supporting the second device 320; the second device 320 is unloaded and then forwards moved by one shield tunneling step distance, the midpoint of the second device 320 is positioned below the shield machine 8 in the upper shield tunnel 210, specifically, directly below the shield cutter 9 of the shield machine 8, and other operation steps and methods are the same as those of the first device 310;

3) Third device 330 unloaded, advanced, supported; the third device 320 is moved forward by one shield tunneling step after unloading, the third device 320 reaches the rear of the shield machine 8 in the upper shield tunnel 210, specifically, the third device 320 reaches the right lower part of the second segment 130 installed in the upper shield tunnel 210, so as to prevent the second segment 120 of the upper shield tunnel 210 from being installed and the grouting operation after the second segment 130 from producing extrusion deformation on the first segment 10 of the lower shield tunnel 220, and other operation steps and methods are the same as those of the first device.

Step six: cyclic tunneling and supporting: the shield machine 8 in the upper shield tunnel 210 is driven for one shield driving step, then the shield driving step is stopped, the first device 310, the second device 320 and the third device 330 of the supporting device are unloaded, moved forwards and supported in sequence, and the driving and the supporting are circulated until the construction of the upper shield tunnel 210 is completed.

Step seven: and removing the supporting equipment after the construction of the upper shield tunnel 210 is completed, and repeating the supporting equipment for other tunnel constructions.

In a preferred manner, during the shield construction process of the upper shield tunnel 210, when the pressure applied to the support screw 212 of the support device 2 is reduced, the pressure and the support state can be automatically reinforced by programming, so that fine adjustment can be performed. In the shield construction process of the upper shield tunnel 210, the pressure applied to the supporting screw rod 212 of the supporting device 2 may be increased or reduced, when the pressure of the supporting device 2 exceeds the early warning value, an alarm is automatically sent out, a worker can check supporting equipment and adjust parameters of the construction of the shield machine 8 in the upper shield tunnel 210, and the influence of the shield construction of the upper shield tunnel 210 on the stress and deformation of the first segment 10 of the lower shield tunnel 220 is reduced.

In a preferred manner, the stopping position of the shield tunneling machine 8 above the first device 310 can be adjusted by reducing the clearance between the 3 supporting devices or by adjusting the shield tunneling step backward, so as to reduce the pressure applied to the supporting screw rod 212 of the supporting device 2 and ensure that the first segment 10 is not deformed. When the pressure of the supporting device 2 is at a small value, the net distance between 3 supporting devices can be increased, or the stopping position of the shield tunneling machine above the first device can be adjusted forwards, namely, the shield tunneling step distance is increased, so that quick construction is achieved, the pressure of the supporting device 2 is reduced, and the number of times of moving the supporting device is reduced.

In a preferred manner, the computer 71 of the centralized control system 7 controls the automatic control of each device, such as the screw rod controller 41 of the adjusting device 4, so as to control the extension and contraction of the supporting screw rod 212, such as the rotation and steering of the wheels 32 of the running device 3, to enable the supporting equipment to move to the next designated supporting position, such as the vertical extension and contraction of the lifting controller 5, and the like, to realize the automatic control of the four-step and six-step cyclic operation steps, and realize the automatic operation, and meanwhile, the control panel of the computer 71 can also be used for realizing the manual control of the operation of each system, so that the operation of the supporting equipment can be regulated and controlled manually.

Analyzing the construction process of the stacked segment shield tunnel by utilizing finite element analysis FLAC3D to obtain that the main influence range of the upper shield tunnel construction on the lower shield tunnel is about 4.5m away from the excavation surface, so as to obtain the design length and the distance of supporting equipment suitable for the stacked segment shield tunnel, and carrying out the aimed design of the stacked segment on the supporting equipment according to the deformation influence analysis result, thereby enhancing the applicability of the stacked segment shield tunnel; the conventional support rod piece is changed into a distributed automatic adjustable screw rod, so that the adjustable range is greatly increased, and the support rod piece is suitable for tunnels with various radiuses; the strain sensor is utilized to accurately control the supporting system, so that the supporting system can automatically support the shield along with the progress of the shield excavation, and the degree of automation of the supporting system is enhanced.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a fold line segment shield tunnel supporting equipment, its characterized in that, includes steelframe (1), strutting arrangement (2) and running gear (3), strutting arrangement (2) are connected on steelframe (1), running gear (3) set up steelframe (1) bottom, strutting arrangement (2) are used for butt first section of jurisdiction (10), just strutting arrangement (2) can follow the radial extension of first section of jurisdiction (10), steelframe (1) can pass through running gear (3) are along the vertical walking of first section of jurisdiction (10).

2. The line segment stacking shield tunnel supporting device according to claim 1, wherein the supporting device (2) comprises a plurality of supporting components (21), all the supporting components (21) are circumferentially arranged, the supporting components (21) are connected with the steel frame (1), one end of each supporting component (21) is abutted to the first duct piece (10), and the supporting components (21) can stretch out and draw back along the radial direction of the first duct piece (10).

3. The line segment stacking shield tunnel supporting device according to claim 2, wherein the supporting assembly (21) comprises a supporting steel pipe (211), one end of the supporting steel pipe (211) is provided with a supporting screw rod (212), and the supporting screw rod (212) is used for abutting against the first duct segment (10).

4. A segment-stacked shield tunnel support apparatus according to claim 3, wherein the support assembly (21) further comprises an adjusting device (4), the adjusting device (4) being configured to adjust the amount of telescoping of the support screw (212).

5. A segment-stacked shield tunnel supporting apparatus as claimed in claim 3, wherein said supporting assembly (21) further comprises a spacing steel pipe (213), said spacing steel pipe (213) being fixed to said steel frame (1), said supporting steel pipe (211) passing through said spacing steel pipe (213) and abutting against said first segment (10).

6. The line segment stacking shield tunnel supporting device according to claim 5, wherein the supporting device (2) further comprises an intersection point connecting steel disc (22), one end of the supporting steel tube (211) is connected with the intersection point connecting steel disc (22) through a bolt, the other end of the supporting steel tube (211) penetrates through the limiting steel tube (213) and abuts against the first segment (10), and the supporting steel tube (211) is uniformly and symmetrically arranged along the circumference of the intersection point connecting steel disc (22).

7. A segment-stacked shield tunnel support apparatus according to any one of claims 1-6, wherein the running means (3) comprises wheels (32), sleepers (33) and tracks (34), the wheels (32) are connected to the bottom of the steel frame (1), the sleepers (33) are arranged at the bottom of the first segment (10), the tracks (34) are longitudinally laid on the sleepers (33), and the wheels (32) can longitudinally run along the tracks (34).

8. The line-overlapping shield tunnel supporting device according to claim 7, further comprising a lifting controller (5), wherein the lifting controller (5) is connected to the bottom of the steel frame (1), and the lifting controller (5) can vertically stretch out and draw back.

9. The line segment stacking shield tunnel supporting device according to claim 8, wherein the steel frame (1) comprises a plurality of longitudinally connected steel frameworks (11), and the supporting device (2) is arranged on the side face of each steel framework (11).

10. A segment-stacked shield tunnel support device according to claim 9, wherein adjacent steel backbones (11) are connected by a longitudinal connecting rod (14).