Tunnel anti-deformation emergency support device

Abstract

The present invention belongs to the technical field of tunnel support and discloses a tunnel anti-deformation emergency support device, the technical key points of which are: it includes a base plate, the bottom wall of the base plate is provided with a column, the surface of the base plate is fixedly installed with an arc-shaped fixed plate, the surface of the base plate is provided with a receiving hole downwardly opened, and a support column is slidably installed in the receiving hole along the vertical direction, and a positioning mechanism that cooperates with the support column is provided in the column, the positioning mechanism includes a limit assembly and an adjustment assembly, the limit assembly includes an upper clamping part and a lower clamping part, and the relative position of the support column and the base plate can be conveniently adjusted by arranging a limit assembly composed of an upper clamping part and a lower clamping part and cooperating with the adjustment assembly. When the tunnel reaches the settlement limit, the support column can automatically move upward to the outside of the base plate and further support the inner cavity of the tunnel, so as to facilitate the passage of workers in the tunnel and improve the safety performance of the tunnel.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel support, in particular to a tunnel anti-deformation emergency support device. Background Art

[0002] At present, in shield tunnel projects, construction-induced deformations such as changes in the surrounding soil layers or soil and stress fields, as well as the squeezing, stirring, and vibration of construction machinery, will lead to force imbalance in the existing tunnel structure, causing local settlement, collapse, and other deformations in the tunnel structure, which in turn leads to the destruction of the tunnel structure. Therefore, special support devices are needed to support the tunnel.

[0003] When using existing support measures, they can generally only provide fixed support for the inner wall of the tunnel and are unable to monitor the settlement of the inner wall of the tunnel. When the settlement of the inner wall of the tunnel reaches the limit, the tunnel is prone to direct collapse, affecting the personal safety of the workers working in the tunnel, and the use effect is poor. Summary of the Invention

[0004] The purpose of the present invention is to provide a tunnel anti-deformation emergency support device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The tunnel anti-deformation emergency support device includes a base plate, a column is provided on the bottom wall of the base plate, an arc-shaped fixing plate is fixedly installed on the surface of the base plate, a receiving hole is opened downward on the surface of the base plate and extends to the inside of the column, a support column is slidably installed in the receiving hole along the vertical direction, the surface of the base plate is flush with the ground surface, a positioning mechanism that cooperates with the support column is provided in the column, the positioning mechanism includes a limiting component and an adjusting component, the limiting component includes an upper clamping part and a lower clamping part, the upper clamping part and the lower clamping part are respectively located in the column and connected to the support column, the adjusting component is located on the fixing plate and the surface of the base plate and is respectively connected to the upper clamping part and the lower clamping part, and the adjusting component adjusts the relative position of the support column and the base plate by cooperating with the upper clamping part and the lower clamping part.

[0007] As a further solution of the present invention: the upper clamping portion includes multiple groups of upper clamping holes distributed in an annular shape opened at the top end of the side wall of the support column, and the side wall of the receiving hole is provided with multiple groups of upper receiving holes distributed in an annular shape, and an upper clamping rod that cooperates with the upper clamping hole is slidably installed in the upper receiving hole, and a first extrusion spring is fixedly installed in the upper receiving hole, and the telescopic end of the first extrusion spring is connected to the upper clamping rod.

[0008] As a further solution of the present invention: the lower clamping part includes multiple groups of lower clamping holes distributed in an annular shape opened at the bottom end of the side wall of the support column, and the side wall of the storage hole is provided with multiple groups of lower storage holes distributed in an annular shape, and the lower storage hole is located below the upper storage hole, and a lower clamping rod that cooperates with the lower clamping hole is slidably installed in the lower storage hole, and a second extrusion spring is fixedly installed in the lower storage hole, and the telescopic end of the second extrusion spring is connected to the lower clamping rod, and a recoil spring that cooperates with the support column is provided at the bottom of the storage hole.

[0009] As a further solution of the present invention: the adjustment component includes an annular control cavity opened inside the column, the control cavity is sleeved on the outer side of the upper receiving hole and the lower receiving hole, a control ring is slidably installed in the control cavity along the vertical direction, an upper pull rope is fixedly installed on one end of the upper clamping rod located in the upper receiving hole, the upper pull rope extends into the control cavity away from the end of the upper clamping rod and is connected to the side wall of the control ring, and a lower pull rope is fixedly installed on one end of the lower clamping rod located in the lower receiving hole, the lower pull rope extends into the control cavity away from the end of the lower clamping rod and is connected to the bottom wall of the control ring. The surface of the control ring is provided with multiple groups of positioning springs distributed in a ring shape, the surface of the fixed plate is provided with an arc groove, and the surface of the bottom plate is provided with two groups of relatively distributed horizontal grooves, one end of the horizontal groove is connected with the bottom end of the arc groove, and the other end of the horizontal groove extends into the column and is connected with the control cavity. Control ropes are installed in the arc groove and the horizontal groove, and both ends of the control rope extend into the control cavity through the horizontal groove and are connected to the control ring. A settlement monitoring part that cooperates with the control rope is provided on the surface of the fixed plate. When the tunnel reaches the settlement limit, the settlement monitoring part is used to cut off the control rope.

[0010] As a further solution of the present invention: the settlement monitoring part includes multiple groups of annularly distributed fixing frames fixedly installed on the bottom wall of the fixed plate, the fixing frame is a U-shaped structure, a monitoring column is slidably installed between the fixing frame and the fixed plate, the top of the monitoring column extends to the outside of the fixed plate, the side wall of the monitoring column is provided with a cutting blade, the surface of the fixed plate is provided with a cutting groove distributed opposite to the cutting blade, a baffle is fixedly installed on the surface of the monitoring column, and a telescopic spring is fixedly installed on the surface of the fixed frame, the telescopic spring is sleeved on the outside of the monitoring column and connected to the baffle.

[0011] As a further solution of the present invention: the side wall of the monitoring column is provided with a plurality of groups of mounting holes distributed in parallel, and the side wall of the cutting blade is fixedly mounted with a mounting column that cooperates with the mounting holes.

[0012] As a further solution of the present invention: a protection wheel that cooperates with the control rope is rotatably installed in the horizontal groove.

[0013] Compared with the existing technology, the present invention has the following advantages: by providing a limit assembly consisting of upper and lower clamping parts that cooperates with the adjustment assembly, the relative position of the support column and the base plate can be easily adjusted. When the tunnel reaches the settlement limit, the support column can automatically move upward to the outside of the base plate to further support the tunnel cavity, facilitating the passage of tunnel workers and improving tunnel safety. This solves the current problem of tunnel collapse when tunnel settlement reaches the limit, which affects the personal safety of tunnel workers.

[0014] By setting up a settlement monitoring unit and cooperating with the adjustment component, the settlement amplitude of the tunnel inner wall can be monitored in real time, effectively improving the tunnel's anti-deformation emergency response capability when settlement occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the tunnel anti-deformation emergency support device provided in an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the main structure of the tunnel anti-deformation emergency support device provided in an embodiment of the present invention.

[0017] Figure 3 for Figure 1 Schematic diagram of the enlarged structure of A in the figure.

[0018] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of B.

[0019] Figure 5 for Figure 2 Schematic diagram of the enlarged structure of C in the middle.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the support column in the tunnel anti-deformation emergency support device provided in an embodiment of the present invention.

[0021] Figure 7 It is a schematic diagram of the three-dimensional structure of the control rope in the tunnel anti-deformation emergency support device provided in an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of the monitoring column and its connection structure in the tunnel anti-deformation emergency support device provided in an embodiment of the present invention.

[0023] Among them: 1-bottom plate, 2-column, 21-storage hole, 3-fixed plate, 4-support column, 5-positioning mechanism, 51-limiting assembly, 511-upper clamping part, 5111-upper clamping hole, 5112-upper storage hole, 5113-first extrusion spring, 5114-upper clamping rod, 512-lower clamping part, 5121-lower clamping hole, 5122-lower storage hole, 5123-second extrusion spring, 5124-lower clamping rod , 5125-recoil spring, 52-adjustment assembly, 521-control chamber, 522-control ring, 523-upper pull rope, 524-lower pull rope, 525-positioning spring, 526-arc groove, 527-horizontal groove, 528-control rope, 6-settlement monitoring part, 61-fixed frame, 62-monitoring column, 63-cutting blade, 64-cutting groove, 65-baffle, 66-telescopic spring, 7-mounting hole, 8-mounting column. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0025] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0026] like Figure 1 、 Figure 2 As shown, a structural diagram of a tunnel anti-deformation emergency support device provided by an embodiment of the present invention includes a base plate 1, a column 2 is provided on the bottom wall of the base plate 1, an arc-shaped fixing plate 3 is fixedly installed on the surface of the base plate 1, a receiving hole 21 extending downwardly to the interior of the column 2 is opened on the surface of the base plate 1, a support column 4 is slidably installed in the vertical direction in the receiving hole 21, the surface of the base plate 1 is flush with the ground surface, and a positioning mechanism 5 that cooperates with the support column 4 is provided in the column 2, and the positioning mechanism 5 includes The limiting component 51 and the adjusting component 52, the limiting component 51 includes an upper clamping portion 511 and a lower clamping portion 512, the upper clamping portion 511 and the lower clamping portion 512 are respectively located in the column 2 and connected to the support column 4, the adjusting component 52 is located on the surface of the fixed plate 3 and the bottom plate 1 and is respectively connected to the upper clamping portion 511 and the lower clamping portion 512, the adjusting component 52 adjusts the relative position of the support column 4 and the bottom plate 1 by cooperating with the upper clamping portion 511 and the lower clamping portion 512.

[0027] During use, the base plate 1 and the fixed plate 3 are installed in the tunnel cavity, with the base plate 1 flush with the tunnel surface, and the columns 2 buried below the surface. Initially, the upper clamping portion 511 positions the support column 4 in the receiving hole 21, with the support column 4 entirely in the receiving hole 21 and the top of the support column 4 flush with the surface of the base plate 1. When the tunnel inner wall settles to a limit, the adjustment assembly 52 controls the upper clamping portion 511 to release the positioning of the support column 4 in the receiving hole 21, and the lower clamping portion 512 pushes the support column 4 to move vertically upward in the receiving hole 21, with the top of the support column 4 contacting the fixed plate 3. The lower clamping portion 512 fixes the position of the support column 4 in the receiving hole 21. At this time, the support column 4 supports and positions the fixed plate 3. The support column 4 and the fixed plate 3 cooperate with each other to support the settled earthwork, effectively preventing the continued settlement of the earthwork on the inner wall of the tunnel. At this time, the workers in the tunnel can safely pass through both sides of the support column 4, which is convenient for evacuating the workers and effectively improves the safety during tunnel construction.

[0028] like Figure 2 、 Figure 4 、 Figure 6 As shown, as a preferred embodiment of the present invention, the upper clamping portion 511 includes a plurality of groups of upper clamping holes 5111 distributed in an annular manner opened on the top end of the side wall of the support column 4, and the side wall of the receiving hole 21 is provided with a plurality of groups of upper receiving holes 5112 distributed in an annular manner, and an upper clamping rod 5114 that cooperates with the upper clamping hole 5111 is slidably installed in the upper receiving hole 5112, and a first extrusion spring 5113 is fixedly installed in the upper receiving hole 5112, and the telescopic end of the first extrusion spring 5113 is connected to the upper clamping rod 5114.

[0029] Initially, the support column 4 is entirely in the receiving hole 21. At this time, the first extrusion spring 5113 applies a thrust to the upper clamping rod 5114, and the upper clamping rod 5114 is inserted into the upper clamping hole 5111 on the surface of the support column 4. Multiple groups of upper clamping rods 5114 cooperate with the upper clamping holes 5111, and the position of the support column 4 can be conveniently fixed in the receiving hole 21. When the settlement of the inner wall of the tunnel reaches a limit, the adjusting assembly 52 applies a pulling force to the upper clamping rod 5114, thereby pulling the upper clamping rod 5114 as a whole to move into the upper receiving hole 5112. At this time, the upper clamping rod 5114 and the upper clamping hole 5111 are separated from each other, thereby releasing the positioning of the support column 4 in the receiving hole 21, and the lower clamping portion 512 pushes the support column 4 to move vertically upward in the receiving hole 21. When the top end of the support column 4 contacts the fixed plate 3 for support, the lower clamping portion 512 fixes the bottom end of the support column 4 in the receiving hole 21.

[0030] like Figure 2 、 Figure 4 、 Figure 6As shown, as a preferred embodiment of the present invention, the lower clamping portion 512 includes a plurality of groups of lower clamping holes 5121 distributed in an annular manner opened at the bottom end of the side wall of the support column 4, and the side wall of the receiving hole 21 is provided with a plurality of groups of lower receiving holes 5122 distributed in an annular manner, and the lower receiving holes 5122 are located below the upper receiving hole 5112, and a lower clamping rod 5124 that cooperates with the lower clamping hole 5121 is slidably installed in the lower receiving hole 5122, and a second extrusion spring 5123 is fixedly installed in the lower receiving hole 5122, and the telescopic end of the second extrusion spring 5123 is connected to the lower clamping rod 5124, and a recoil spring 5125 that cooperates with the support column 4 is provided at the bottom of the receiving hole 21.

[0031] Initially, the recoil spring 5125 is in a compressed state at the bottom of the receiving hole 21. When the tunnel inner wall sinks to a limit, the upper clamping rod 5114 and the upper clamping hole 5111 separate from each other, thereby releasing the support column 4 from its position in the receiving hole 21. The recoil spring 5125 pushes the support column 4 to move vertically upward in the receiving hole 21. When the lower clamping hole 5121 at the bottom end of the side wall of the support column 4 is aligned with the lower receiving hole 5122, the second extrusion spring 5123 inserts the lower clamping rod 5124 into the lower clamping hole 5121. Multiple groups of lower clamping rods 5124 cooperate with the lower clamping holes 5121 to stably support and fix the support column 4 in the receiving hole 21. At this time, the top of the support column 4 can synchronously support the fixing plate 3, effectively preventing the tunnel inner wall from continuing to sink.

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7As shown, as a preferred embodiment of the present invention, the adjustment component 52 includes an annular control cavity 521 opened inside the column 2, and the control cavity 521 is sleeved on the outside of the upper receiving hole 5112 and the lower receiving hole 5122. A control ring 522 is slidably installed in the control cavity 521 along the vertical direction, and an upper pulling rope 523 is fixedly installed at one end of the upper clamping rod 5114 located in the upper receiving hole 5112, and the upper pulling rope 523 extends into the control cavity 521 away from one end of the upper clamping rod 5114 and is connected to the side wall of the control ring 522, and a lower pulling rope 524 is fixedly installed at one end of the lower clamping rod 5124 located in the lower receiving hole 5122, and the lower pulling rope 524 extends into the control cavity 521 away from one end of the lower clamping rod 5124 and is connected to the side wall of the control ring 522. The bottom wall of the ring 522 is connected, and the surface of the control ring 522 is provided with multiple groups of positioning springs 525 distributed in a ring shape. The surface of the fixed plate 3 is provided with an arc groove 526, and the surface of the bottom plate 1 is provided with two groups of relatively distributed horizontal grooves 527. One end of the horizontal groove 527 is connected with the bottom end of the arc groove 526, and the other end of the horizontal groove 527 extends into the column 2 and is connected with the control cavity 521. Control ropes 528 are installed in the arc groove 526 and the horizontal groove 527. Both ends of the control rope 528 pass through the horizontal groove 527 and extend into the control cavity 521 and are connected to the control ring 522. The surface of the fixed plate 3 is provided with a settlement monitoring part 6 that cooperates with the control rope 528. When the tunnel reaches the settlement limit, the settlement monitoring part 6 is used to cut off the control rope 528.

[0033] Initially, the control rope 528 is installed in the arc groove 526 and the horizontal groove 527. At this time, the control rope 528 pulls the control ring 522 to be at the top of the control cavity 521, and the positioning spring 525 is in a compressed state. At this time, the control ring 522 and the lower pulling rope 524 cooperate with each other to apply tension to the lower clamping rod 5124, and the lower clamping rod 5124 is as a whole in the lower receiving hole 5122. When the settlement of the inner wall of the tunnel reaches the limit, the settlement monitoring unit 6 automatically cuts off the control rope 528, and the control rope 528 releases the restriction on the control ring 522 in the control chamber 521. The positioning spring 525 pushes the control ring 522 to move downward in the control chamber 521. The control ring 522 cooperates with the upper pulling rope 523 to pull the upper clamping rod 5114 as a whole to move into the upper receiving hole 5112. At this time, the upper clamping rod 5114 is separated from the upper clamping hole 5111, and then the positioning of the support column 4 is released in the receiving hole 21. The recoil spring 5125 pushes the support column 4 to move vertically upward in the receiving hole 21, and the second extrusion spring 5123 inserts the lower clamping rod 5124 into the lower clamping hole 5121. Multiple groups of lower clamping rods 5124 cooperate with the lower clamping hole 5121 to stably support and fix the support column 4 in the receiving hole 21.

[0034] like Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 As shown, as a preferred embodiment of the present invention, the settlement monitoring part 6 includes a plurality of groups of annularly distributed fixing frames 61 fixedly installed on the bottom wall of the fixing plate 3, the fixing frame 61 is a U-shaped structure, and a monitoring column 62 is slidably installed between the fixing frame 61 and the fixing plate 3, the top of the monitoring column 62 extends to the outside of the fixing plate 3, the side wall of the monitoring column 62 is provided with a cutting blade 63, the surface of the fixing plate 3 is provided with a cutting groove 64 distributed opposite to the cutting blade 63, a baffle 65 is fixedly installed on the surface of the monitoring column 62, and a telescopic spring 66 is fixedly installed on the surface of the fixing frame 61, and the telescopic spring 66 is sleeved on the outside of the monitoring column 62 and connected to the baffle 65.

[0035] Initially, the expansion spring 66 exerts an upward force on the baffle 65, which in turn exerts an upward force on the monitoring column 62. The top of the monitoring column 62 is in contact with the tunnel inner wall. When the tunnel inner wall settles, the inner wall pushes the monitoring column 62 downward, which in turn drives the cutting blade 63 downward. When the tunnel inner wall settles to a certain limit, the cutting blade 63 on the outer side of the monitoring column 62 moves into the cutting groove 64, where it automatically cuts the control rope 528.

[0036] like Figure 2 、 Figure 3 、 Figure 5 、 Figure 8 As shown, as a preferred embodiment of the present invention, the side wall of the monitoring column 62 is provided with multiple groups of parallelly distributed mounting holes 7, and the side wall of the cutting blade 63 is fixedly mounted with a mounting column 8 that cooperates with the mounting holes 7.

[0037] Through the cooperation between the mounting hole 7 and the mounting column 8, the cutting blade 63 can be easily installed and disassembled at the side wall of the monitoring column 62, and the relative distance between the cutting blade 63 and the cutting groove 64 can be easily adjusted, thereby adjusting the limit amplitude of the settlement.

[0038] As a preferred embodiment of the present invention, a protective wheel that cooperates with the control rope 528 is rotatably installed in the horizontal groove 527.

[0039] The working principle of the present invention is as follows: during use, the base plate 1 and the fixing plate 3 are installed in the tunnel cavity, with the base plate 1 flush with the tunnel surface and the pillars 2 buried below the surface. The first extrusion spring 5113 then applies a thrust to the upper clamping rods 5114, which are inserted into the upper clamping holes 5111 on the surface of the support pillars 4. Multiple sets of upper clamping rods 5114 cooperate with the upper clamping holes 5111, conveniently securing the position of the support pillars 4 within the receiving holes 21.

[0040] The telescopic spring 66 applies an upward force to the baffle 65, which in turn applies an upward force to the monitoring column 62. The top of the monitoring column 62 is in contact with the tunnel's inner wall. When the tunnel's inner wall settles, the inner wall pushes the monitoring column 62 downward, which in turn drives the cutting blade 63 downward. When the tunnel's inner wall settles to a certain limit, the cutting blade 63 on the outside of the monitoring column 62 moves into the cutting groove 64, where it automatically cuts the control rope 528. The control rope 528 releases the restriction on the control ring 522 in the control cavity 521, and the positioning spring 525 pushes the control ring 522 to move downward in the control cavity 521. The control ring 522 cooperates with the upper pulling rope 523 to pull the upper clamping rod 5114 as a whole to move into the upper receiving hole 5112. At this time, the upper clamping rod 5114 and the upper clamping hole 5111 are separated from each other, and then the positioning of the support column 4 in the receiving hole 21 is released. The recoil spring 5125 pushes the support column 4 to move vertically upward in the receiving hole 21, and the second extrusion spring 5123 inserts the lower clamping rod 5124 into the lower clamping hole 5121. Multiple groups of lower clamping rods 5124 cooperate with the lower clamping hole 5121 to stably support and fix the support column 4 in the receiving hole 21. At this time, the support columns 4 support and position the fixed plate 3. The support columns 4 and the fixed plate 3 cooperate with each other to support the settled earthwork, effectively preventing the continued settlement of the earthwork on the inner sidewall of the tunnel. At this time, the workers in the tunnel can safely pass through the two sides of the support columns 4, facilitating the evacuation of the workers and effectively improving the safety during tunnel construction.

[0041] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A tunnel anti-deformation emergency support device, comprising a base plate (1), a bottom wall of the base plate (1) provided with a column (2), and an arc-shaped fixing plate (3) fixedly mounted on the surface of the base plate (1), characterized in that: A receiving hole (21) extending downwardly to the interior of the column (2) is provided on the surface of the bottom plate (1), a support column (4) is slidably mounted in the vertical direction in the receiving hole (21), and the surface of the bottom plate (1) is flush with the ground surface; A positioning mechanism (5) cooperating with the support column (4) is provided in the upright column (2), and the positioning mechanism (5) comprises a limiting component (51) and an adjusting component (52); The limiting assembly (51) includes an upper clamping portion (511) and a lower clamping portion (512), the upper clamping portion (511) and the lower clamping portion (512) are respectively located in the column (2) and connected to the support column (4), the upper clamping portion (511) includes a plurality of groups of upper clamping holes (5111) distributed in an annular manner and opened at the top end of the side wall of the support column (4), the side wall of the receiving hole (21) is provided with a plurality of groups of upper receiving holes (5112) distributed in an annular manner, an upper clamping rod (5114) cooperating with the upper clamping hole (5111) is slidably installed in the upper receiving hole (5112), a first extrusion spring (5113) is fixedly installed in the upper receiving hole (5112), the telescopic end of the first extrusion spring (5113) is in contact with the upper clamping rod (5111), and the telescopic end of the first extrusion spring (5113) is in contact with the upper clamping rod (5111). 14), the lower clamping portion (512) includes a plurality of groups of lower clamping holes (5121) distributed in an annular manner opened at the bottom end of the side wall of the support column (4), the side wall of the receiving hole (21) is provided with a plurality of groups of lower receiving holes (5122) distributed in an annular manner, the lower receiving holes (5122) are located below the upper receiving hole (5112), a lower clamping rod (5124) cooperating with the lower clamping hole (5121) is slidably installed in the lower receiving hole (5122), a second extrusion spring (5123) is fixedly installed in the lower receiving hole (5122), the telescopic end of the second extrusion spring (5123) is connected to the lower clamping rod (5124), and a recoil spring (5125) cooperating with the support column (4) is provided at the bottom of the receiving hole (21); The adjusting assembly (52) is located on the surface of the fixing plate (3) and the bottom plate (1) and is connected to the upper clamping portion (511) and the lower clamping portion (512) respectively. The adjusting assembly (52) adjusts the relative position of the support column (4) and the bottom plate (1) by cooperating with the upper clamping portion (511) and the lower clamping portion (512). The adjusting assembly (52) includes an annular control cavity (521) opened inside the column (2). The control cavity (521) is sleeved on the outside of the upper receiving hole (5112) and the lower receiving hole (5122). A control ring (522) is slidably installed in the control cavity (521) along the vertical direction. The upper clamping rod (5114) is located in the upper receiving hole (5112). ) is fixedly installed with an upper pulling rope (523) at one end thereof, and the end of the upper pulling rope (523) away from the upper clamping rod (5114) extends into the control cavity (521) and is connected to the side wall of the control ring (522), and the end of the lower clamping rod (5124) located in the lower receiving hole (5122) is fixedly installed with a lower pulling rope (524), and the end of the lower pulling rope (524) away from the lower clamping rod (5124) extends into the control cavity (521) and is connected to the bottom wall of the control ring (522), and the surface of the control ring (522) is provided with multiple groups of positioning springs (525) distributed in an annular shape, the surface of the fixing plate (3) is provided with an arc groove (526), and the surface of the bottom plate (1) is provided with a Two groups of relatively distributed transverse grooves (527), one end of the transverse groove (527) is connected to the bottom end of the arc groove (526), the other end of the transverse groove (527) extends into the column (2) and is connected to the control cavity (521), a control rope (528) is installed in the arc groove (526) and the transverse groove (527), both ends of the control rope (528) pass through the transverse groove (527) and extend into the control cavity (521) and are connected to the control ring (522), a settlement monitoring part (6) that cooperates with the control rope (528) is provided on the surface of the fixing plate (3), when the tunnel reaches the settlement limit, the settlement monitoring part (6) is used to cut off the control rope (528), and the settlement monitoring part (6) is used to cut off the control rope (528). ) includes a plurality of groups of annularly distributed fixing frames (61) fixedly mounted on the bottom wall of a fixing plate (3), the fixing frame (61) being a U-shaped structure, a monitoring column (62) being slidably mounted between the fixing frame (61) and the fixing plate (3), the top end of the monitoring column (62) extending to the outside of the fixing plate (3), a cutting blade (63) being provided on the side wall of the monitoring column (62), a cutting groove (64) being arranged opposite to the cutting blade (63) being provided on the surface of the fixing plate (3), a baffle (65) being fixedly mounted on the surface of the monitoring column (62), a telescopic spring (66) being fixedly mounted on the surface of the fixing frame (61), the telescopic spring (66) being sleeved on the outside of the monitoring column (62) and connected to the baffle (65).

2. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: The side wall of the monitoring column (62) is provided with a plurality of groups of mounting holes (7) distributed in parallel, and the side wall of the cutting blade (63) is fixedly mounted with a mounting column (8) that cooperates with the mounting holes (7).

3. The tunnel anti-deformation emergency support device according to claim 1, characterized in that: A protection wheel that cooperates with the control rope (528) is rotatably mounted in the transverse line groove (527).

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