Supporting and damping device and tunnel reinforcing device

Abstract

The utility model relates to tunnel reinforcing, in particular to a supporting and damping device and a tunnel reinforcing device. A supporting damping device is used for supporting an arch support providing bearing force for a tunnel wall and comprises a bottom supporting plate, an elastic supporting device and a supporting distance adjusting device. The bottom supporting plate is used for being fixed to a ballast bed at the bottom of a tunnel. The elastic supporting device is arranged between the end part of the arched bracket and the bottom supporting plate and is used for providing upward elastic supporting force and absorbing vibration from a ballast bed; the supporting distance adjusting device is used for being arranged between the end of the arched support and the elastic supporting device and / or arranged between the elastic supporting device and the bottom supporting plate so as to adjust the supporting distance. The utility model mainly solves the technical problem of how to provide reliable support and vibration reduction for a tunnel.

Description

Technical Field

[0001] The utility model relates to tunnel reinforcement, in particular to a support vibration reduction device and a tunnel reinforcement device. Background Art

[0002] Tunnels are important infrastructure in the field of transportation. At present, after tunnel excavation, structures such as pipe segments need to be set up in the tunnel to ensure the structural stability and aesthetics of the tunnel. However, affected by the surrounding environment of the tunnel, such as ground load, vibration of trains, surrounding foundation pits, groundwater and other factors, the tunnel may suffer from deformation, cracking, misalignment and other defects. In order to treat the defects, the arch frame reinforcement method is often used at present. Arched corrugated steel plates, arched profiles and other arched supports are installed in sections on the inner side of the tunnel wall, and then the arched supports are reinforced and supported. In addition, the time for arch frame reinforcement is limited, and the tunnel can only be reinforced within the window period when the rail train is suspended. Due to the limitations of the construction environment, on-site welding operations are generally not allowed during reinforcement. In addition, since the arched supports are all standard prefabricated parts, the different degrees of tunnel defects and the large-span tunnel itself may have measurement errors or construction errors, which will cause the support position of the end of the arched support to change, increasing the difficulty of reinforcing the arched support.

[0003] Furthermore, due to the large span of the train tunnel and the heavy weight of the arch support, the width of the support is limited by the thickness of the arch support, resulting in high support strength requirements and relatively narrow support space available for operation. In view of this situation, the existing technology generally adopts the side wall of the tunnel and the platform at the bottom of the tunnel to share the support of the arch support. However, since the side wall is a concrete segment, the bearing capacity of the concrete segment is limited, which will constitute a potential hidden danger of tunnel support.

[0004] In addition, it is well known that when a train passes through a tunnel, it will generate vibration, which will be transmitted to the supporting device at the bottom of the arch support through the platform. Therefore, vibration in long-term operation will constitute another potential hidden danger of tunnel support.

[0005] Chinese patent CN219826860U discloses an adjustable corbel bracket for rail transit segment maintenance and reinforcement, the purpose of which is to transfer part of the force of the corbel bracket to the roadbed (see paragraph

[0007] of the specification). The above patent uses an arc-shaped support profile as an arch bracket, and the two ends of the arch bracket are fixed on the corbel bracket. The corbel bracket is connected to the tunnel wall and the platform at the bottom of the tunnel at the same time. The tunnel wall and the platform can share the gravity and pressure of the arch bracket. The corbel bracket includes an arch frame connecting seat (including an L-shaped connecting plate and a connecting rib plate) for being fixedly connected to the arch bracket and fixed to the tunnel wall, a horizontal connecting plate for being fixed to the platform, and a telescopic rod for transmitting supporting force between the arch frame connecting seat and the horizontal connecting plate. The telescopic rod 34 includes a slide rod and a slide sleeve. The outer end of the slide rod is hinged to the connecting rib plate, and the outer end of the slide sleeve is hinged to the horizontal connecting plate. The slide rod is provided with a guide groove, and the slide sleeve is provided with a radially extending through hole. The locking screw passes through the through hole and the guide groove and is locked and fixed (see paragraph

[0036] of the specification of the above patent). By adjusting the angle and spacing between the horizontal connecting plate and the L-shaped connecting plate, it can adapt to concrete segments of different diameters. Although the above patent has a spring damper between the lower end of the slide rod and the bottom of the slide sleeve, in combination with its practical new purpose and the locking and fixing relationship between the slide rod and the slide sleeve (paragraph

[0036] of the specification of the above patent and the appendix of the specification), the spring damper can be adjusted to the horizontal connecting plate and the L-shaped connecting plate. Figure 4 ) It can be seen that since the slide rod and the slide sleeve are locked and fixed by the locking screw passing through the through hole on the slide sleeve and the guide groove on the guide slide rod, the slide rod and the slide sleeve are in a fixed connection. Therefore, the spring damper is only used to locate the telescopic position of the telescopic rod when assembling the telescopic rod. When the telescopic rod is assembled, the slide rod and the slide sleeve are locked and fixed, and no displacement can occur. The spring damper will not have a vibration reduction effect.

[0006] In summary, how to provide strong support for the arched supports of the tunnel wall in a narrow support space is still a difficult point in tunnel support. Summary of the invention

[0007] The main technical problem solved by the utility model is how to provide reliable support for the tunnel and also have a vibration reduction effect.

[0008] In a first aspect, the utility model provides a supporting vibration reduction device.

[0009] A support vibration reduction device, used to support an arched support that provides a bearing force for a tunnel wall, comprising a bottom support plate, an elastic support device and a support distance adjustment device;

[0010] The bottom support plate is used to be fixed on the roadbed at the bottom of the tunnel;

[0011] The elastic support device is used to be arranged between the end of the arch support and the bottom support plate, providing an upward elastic support force and absorbing vibration from the roadbed;

[0012] The support distance adjustment device is used to be arranged between the end of the arch support and the elastic support device and / or between the elastic support device and the bottom support plate to adjust the support distance.

[0013] In a technical solution, the elastic supporting device is a leaf spring.

[0014] In a technical solution, the support distance adjustment device includes a first distance adjustment device, which is a support adjustment pad, and the support adjustment pad is used to adapt to the size change of the tunnel wall by changing the number and / or thickness of the support adjustment pad itself.

[0015] In a technical solution, the support distance adjustment device includes a second distance adjustment device, the second distance adjustment device includes an adjusting bolt and an adjustable support, one end of the adjusting bolt is threadedly connected to the adjustable support, the adjustable support is arranged on the elastic support device or the bottom support plate, and the other end of the adjusting bolt is used to correspondingly support the end of the arch support or to correspondingly support the elastic support device, and the support distance is adjusted and the supporting force is adjusted and transmitted through the adjusting bolt.

[0016] In one technical solution, a pre-stressing and lifting device is included, which is arranged between the end face of the arch support and the elastic support device, or between the elastic support device and the bottom support plate. The pre-stressing and lifting device fits the arch support to the tunnel wall with a preset supporting force to facilitate the adjustment of the support distance.

[0017] In a technical solution, the pre-stressing lifting device is a jack.

[0018] In a technical solution, it includes a transverse support plate, a left upper side plate, a left lower side plate, a right upper side plate, a right lower side plate, a side wall upper support plate, a side wall lower support plate, an upper limit plate and a lower limit plate; the transverse support plate is arranged on the end face of the arch support, and the supporting force is transmitted to the arch support through the transverse support plate; the side wall upper support plate is located below the transverse support plate, and the side wall upper support plate and the transverse support plate form a "┏"-shaped structure; the upper limit plate is vertically arranged on the side of the transverse support plate away from the tunnel wall when in use and along It extends in the up and down directions, and the upward extending portion of the upper limit plate is used to be fixedly connected to the arch support; the left upper side plate, the side wall upper support plate, the right upper side plate, the downward extending portion of the upper limit plate and the transverse support plate constitute the upper part of the box body; the left lower side plate, the side wall lower support plate, the right lower side plate, the lower limit plate and the bottom support plate constitute the lower part of the box body; the support distance adjustment device and the elastic support device are arranged in the box body, and there is a gap between the upper and lower parts of the box body, and the gap is used to isolate the vibration from the roadbed.

[0019] In a technical solution, the gap between the upper and lower parts of the box body is filled with elastic sealant.

[0020] In one technical solution, the support distance adjustment device includes at least one first adjustment pad and at least one second adjustment pad, the first adjustment pad is used to be arranged between the second adjustment pad and the bottom support plate, the length and width of the first adjustment pad are greater than the length and width of the second adjustment pad, and the left lower side plate, the side wall lower support plate, the right lower side plate and the lower limit plate are fixedly supported on the first adjustment pad.

[0021] In a second aspect, the utility model provides a tunnel reinforcement device.

[0022] A tunnel reinforcement device, comprising:

[0023] An arch support, the arch support being used to support a tunnel wall;

[0024] A support vibration reduction device, wherein the support vibration reduction device is used to support the arch support;

[0025] The support and vibration reduction device is the support and vibration reduction device described in any of the above technical solutions.

[0026] Beneficial effects of the utility model:

[0027] By setting up an elastic support device, it can provide supporting force for the arch frame and cleverly absorb the vibration from the roadbed. In particular, leaf springs are used as elastic support devices. The shape, structure, and supporting performance of the leaf springs are adapted to the narrow support space required for the arch frame support. The leaf springs have the characteristics of strong supporting capacity, simple structure, and high reliability, and can fully meet the requirements of high-strength and large-size arch frame support.

[0028] In addition, the vertical supporting force is borne by the leaf spring and ultimately transmitted to the roadbed, and the side walls are not required to provide lateral supporting force, which effectively solves the damage to the concrete segments caused by the existing technology relying on side wall support, and is beneficial to improving the service life of the concrete segments.

[0029] Furthermore, even if the leaf spring is subjected to a brief downward vibration from the ballast (when a train passes by), it can still absorb the vibration and maintain an upward elastic supporting force, effectively avoiding secondary damage to the guardrail support caused by the ballast vibration.

[0030] The support distance adjustment device can be used to flexibly preset the support force of the elastic support device. The support distance adjustment device can use support adjustment pads, which can flexibly adapt to the size changes of the tunnel wall by changing the number and / or thickness of the support adjustment pads themselves, that is, adapt to the changes in the support position of the end of the arch support; the support distance adjustment device can use adjustment bolts and adjustable support structures, which have strong support force adjusted by bolts, simple structure, convenient adjustment, and high reliability in transmission of support force.

[0031] The use of a pre-load lifting device can flexibly preset the size of the elastic support force, which can greatly reduce or even eliminate the vibration from the roadbed.

[0032] The support distance adjustment device can adopt a hybrid structure of a support adjustment pad and an adjustment bolt: by flexibly setting the support adjustment pad, the length of the adjustment bolt can be shortened, avoiding excessive distance adjustment, and ensuring high reliability of the support force transmission of the adjustment bolt; the support force can be fine-tuned to the preset support force requirement through the adjustment bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of a tunnel reinforcement device in the utility model in use state of an embodiment;

[0034] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0035] Figure 3 for Figure 2 Structural schematic diagram of the middle support vibration reduction device;

[0036] Figure 4 for Figure 3 A side view of the invention, in which the upper limit plate and the lower limit plate are omitted;

[0037] Figure 5 for Figure 3 Side view of the middle and lower limit plates;

[0038] Figure 6 It is a structural schematic diagram of a support vibration reduction device in another embodiment of a tunnel reinforcement device in the utility model;

[0039] Figure 7 It is a structural schematic diagram of an embodiment of the support vibration reduction device in the utility model when only the first distance adjustment device is used.

[0040] List of feature names corresponding to the reference numerals in the figure:

[0041] 100. Arch support;

[0042] 200, support vibration reduction device;

[0043] 210, arch connection seat; 211, transverse support plate; 212, side wall upper support plate; 213, flange plate; 214, rivet hole; 215, left upper side plate; 216, right upper side plate;

[0044] 220, bottom support plate; 221, platform connection plate; 222, side wall lower support plate; 223, connection studs; 224, left lower side plate; 225, right lower side plate;

[0045] 230, upper limit plate;

[0046] 240, lower limit plate; 241, bottom connecting plate; 242, inclined reinforcing rib;

[0047] 250, first distance adjustment device; 251, adjustable support; 252, adjustment bolt; 253, locking nut;

[0048] 260. Elastic support device; 261. Leaf spring support;

[0049] 270, second distance adjustment device; 271, first adjustment pad; 272, second adjustment pad;

[0050] 281. Arch lifting device; 282. Pre-compression lifting device;

[0051] 310, segment; 320, platform; 330, track. DETAILED DESCRIPTION

[0052] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are intended to enable the present application to be better understood. However, those skilled in the art can easily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the present application are not shown or described in the specification, in order to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0053] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0054] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0055] In an embodiment of the utility model, the elastic support device 260 can provide an upward elastic support force to the arch support 100, and at the same time can absorb the vibration from the roadbed, and the support distance adjustment device can adjust the support distance between the bottom support plate 220 and the end of the arch support 100, to ensure that the arch support 100 and the tunnel wall can maintain a fit state, thereby helping to ensure that the arch support 100 forms a stable support for the tunnel wall, and can rely on the elastic support device 260 to play a vibration reduction role, which is helpful to avoid the vibration generated by the passage of the train affecting the support stability of the support vibration reduction device.

[0056] Embodiments of the tunnel reinforcement device in the utility model:

[0057] Please refer to Figures 1 to 5 In one embodiment, the tunnel reinforcement device includes an arch support 100 and two support vibration reduction devices 200 , the arch support 100 is used to support the tunnel wall, and the support vibration reduction devices 200 are used to support the arch support 100 .

[0058] The arch support 100 can be made of arched corrugated steel plates, arched profiles, etc., and each arch support 100 can be formed by splicing a number of arc segments to facilitate production, transportation and construction. The arch support 100 in the utility model can adopt an existing structure, which will not be described in detail here.

[0059] The support vibration reduction device 200 is used to be connected to the end of the arch support 100 to support the arch support 100. In one embodiment, the support vibration reduction device 200 is a box structure, please refer to Figure 2 , including an arch frame connection seat 210, a bottom support plate 220, a side panel and a limit plate for enclosing a box body. The arch frame connection seat 210 is used to connect with the end of the arch support 100, and the bottom support plate 220 is used to be fixed to the tunnel platform 320. The length of the bottom support plate 220 can be determined according to the number of arch supports 100 supported by each support vibration reduction device 200, and can be fixed to the platform 320 by anchor bolts distributed along the length direction to ensure reliable connection with the platform 320. The side panel includes a side wall support plate that fits the side wall of the tunnel when in use, and a left side panel and a right side panel located on both sides of the side wall support plate along the extension direction of the tunnel. Further, the side wall support plate includes a side wall upper support plate 212 and a side wall lower support plate 222, the left side panel includes a left upper side panel 215 and a left lower side panel 224, and the right side panel includes a right upper side panel 216 and a right lower side panel 225. The limit plate is arranged opposite to the side wall support plate, and the limit plate is arranged on the side away from the tunnel wall when the elastic support device and / or the support distance adjustment device are in use, and is used to limit the displacement of the elastic support device and / or the support distance adjustment device. In one embodiment, the limit plate includes an upper limit plate 230 and a lower limit plate 240. The structure of the above-mentioned box body will be further described in detail below.

[0060] In order to explain the embodiments of the present invention clearly, in the embodiments of the present invention, the direction of the support vibration reduction device that is consistent with the extension direction of the tunnel is used as the length direction of the support vibration reduction device, and the length direction of the support vibration reduction device is parallel to the left and right direction. In addition, the spacing direction of the arch frame connecting seat 210 and the bottom support plate 220 is used as the up and down direction, and the arch frame connecting seat 210 is located above the bottom support plate 220. Of course, the corresponding orientation limitation in the embodiments is only an example to more clearly illustrate the positional relationship between the various components, and does not limit the specific implementation methods and technical solutions of the present invention to be arranged in this way.

[0061] The support vibration reduction device 200 also includes a support distance adjustment device and an elastic support device 260 arranged in the box body. The support distance adjustment device includes a first distance adjustment device 250 and a second distance adjustment device 270. In a specific embodiment, the first distance adjustment device 250 is a support adjustment pad, which is used to adapt to the size change of the tunnel wall by changing the number and / or thickness of the support adjustment pad itself, that is, to adapt to the change of the support position of the end of the arch support 100, so that the arch support 100 supports the tunnel wall. The second distance adjustment device 270 includes an adjustment bolt 252 and an adjustable support 251, and the support distance can be adjusted by adjusting the bolt 252.

[0062] The arch support connection seat 210 is used to fix the end of the arch support 100. In a specific embodiment, please refer to Figure 3 and Figure 4 The arch frame connection seat 210 includes a transverse support plate 211 and a side wall upper support plate 212. It should be noted that one arch frame connection seat 210 can be connected to only one arch support 100, or can be connected to more than two arch supports 100. Please refer to Figure 4 Two arch supports 100 are connected to an arch support connecting seat 210 .

[0063] Please refer to Figure 3 and Figure 4 The transverse support plate 211 is opposite to the end face of the arch support 100, and can support the end face of the arch support 100, so as to ensure that a stable support structure is formed for the arch support 100. After the end face of the arch support 100 is supported on the transverse support plate 211, the upper limit plate 230 can be fixed on the upper part of the box body, and the arch support 100 is fixed to the tunnel wall by using the installation anchor bolt to pass through the upper limit plate 230 and the arch support 100, so as to prevent the arch support 100 from being separated from the arch support connecting seat 210. The transverse support plate 211 is provided to facilitate the formation of a stable support for the end of the arch support 100. In some other embodiments, when the arch support 100 includes an end support provided at the end, the support vibration reduction device can also omit the transverse support plate 211, and the end support of the arch support 100 can be directly supported on one of the elastic support device 260 and the support distance adjustment device located at the top.

[0064] In one embodiment, the side wall upper support plate 212 is located below the transverse support plate 211 and is used to be fixed on the side wall to be supported in the tunnel. The side wall upper support plate 212 and the transverse support plate 211 form a "┏"-shaped structure; the upper limit plate 230 is vertically arranged on the side of the transverse support plate 211 away from the tunnel wall when in use and extends in the up and down direction. The portion of the upper limit plate 230 extending upward, that is, the portion located above the transverse support plate 211, is used to be fixedly connected to the arch support 100, and the portion of the upper limit plate 230 extending downward, that is, the portion located below the transverse support plate 211, is used to limit and block the support distance adjustment device; the left upper side plate 215, the side wall upper support plate 212, and the right upper side plate 21 6 and the transverse support plate 211 can be an integral structure, or be fixed on the transverse support plate 211 by welding, threaded fastener connection, riveting, etc., and the left upper side plate 215, the side wall upper support plate 212, the right upper side plate 216, the upper limit plate 230 and the transverse support plate 211 constitute the upper part of the box body; the left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the bottom support plate 220 can be an integral structure, or be fixed on the bottom support plate 220 by welding, threaded fastener connection, riveting, etc., and the left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225, the lower limit plate 240 and the bottom support plate 220 constitute the lower part of the box body. There is a gap between the upper and lower parts of the box body, and the gap is used to isolate the vibration from the roadbed. It should be noted that, according to the vibration of the roadbed, the gap required to isolate the vibration from the roadbed can be small while meeting the vibration isolation requirements, which can facilitate the sealing operation.

[0065] The support and vibration reduction device 200 adopts a box structure to protect the internal components, which is beneficial to prevent the internal components from rusting or being damaged, and is beneficial to ensuring the working reliability of the support and vibration reduction device. It should be noted that in some other embodiments, the support and vibration reduction device 200 can also adopt an open structure, and the internal support distance adjustment device, the elastic support device 260 and the support adjustment pad can be made of rust-proof materials or rust-proof measures can be set.

[0066] Also, please refer to Figure 4, a rivet hole 214 is provided on the side wall support plate 212. After the arch support 100 is tightened to the tunnel wall by the arch support seat 210, the arch support seat 210 can be fixed to the tunnel wall by rivets, which is conducive to ensuring the structural stability of the tunnel reinforcement device. In fact, since the elastic support device 260 can provide an upward elastic support force to the arch support 100, the side wall support plate 212 and the tunnel side wall do not need to bear the downward force from the arch support. In this case, the fixing of the side wall support plate 212 to the tunnel side wall is also mainly for lateral constraint of the support vibration reduction device 200 to prevent the support vibration reduction device 200 from moving away from the tunnel side wall. It should be noted that it is not necessary to fix the arch support seat 210 to the tunnel wall, and the above-mentioned rivet hole 214 and other structures for fixing to the tunnel wall can also be omitted on the side wall support plate 212.

[0067] In order to ensure the connection stability of the bottom support plate 220, in a specific embodiment, please refer to Figure 3 and Figure 4 , the bottom support plate 220 includes a platform connecting plate 221 and a side wall lower support plate 222, and the side wall lower support plate 222 protrudes from the top surface of the platform connecting plate 221 to limit the support adjustment pad. The side wall lower support plate 222 and the side wall upper support plate 212 are arranged in an interval in the up and down direction, and the interval formed by the two can provide space for the relative movement of the two, so as to meet the position adjustment requirements and vibration reduction requirements of the arch support seat. In order to ensure the protective effect, in one embodiment, an elastic sealant can be used to seal the gap between the upper and lower parts of the box body, for example, the sealant is applied and the sealant is cured to form an elastic sealant sealing structure. Specifically, the elastic sealant is used to seal between the side wall upper support plate 212 and the side wall lower support plate 222, between the left upper side plate 215 and the left lower side plate 224, between the right upper side plate 216 and the right lower side plate 225, and between the upper limit plate 230 and the lower limit plate 240.

[0068] Please refer to Figure 2 In order to adapt to the tilt angle of the bottom end of the arch support 100, an inclined support surface is provided on the platform 320, and the bottom support plate 220 can be directly supported on the inclined support surface. In some other embodiments, when the platform 320 is a plane, the platform connection part of the bottom support plate 220 can also be arranged horizontally, and the part used to support the above-mentioned support adjustment pad can be arranged tilted.

[0069] In one embodiment, the upper limit plate 230 of the support vibration reduction device is detachably fixed to the side of the arch frame connection seat 210 away from the tunnel wall, and the upper limit plate 230 is used to limit the support distance adjustment device and shield the support distance adjustment device. The upper limit plate 230 and the arch frame connection seat 210 can be fixed by screw connection, bolt connection, snap connection, etc. In a specific embodiment, please refer to Figure 4 The flange plates 213 are provided at both ends of the length direction of the arch frame connection seat 210, and the upper limit plate 230 can be fixed on the flange plate 213 by bolts. In one embodiment, the top of the upper limit plate 230 is higher than the transverse support plate 211, so that the upper limit plate 230 can limit the arch support 100 in a direction perpendicular to the tunnel side wall.

[0070] The lower limit plate 240 is fixed on the bottom support plate 220. In one embodiment, the lower limit plate 240 is used to limit the elastic support device 260 and the support adjustment pad. Figure 3 , Figure 5 The supporting vibration reduction device includes a bottom connecting plate 241, a lower limiting plate 240 is connected to the bottom connecting plate 241, and an inclined reinforcing rib 242 is provided between the lower limiting plate 240 and the bottom connecting plate 241, which can ensure the structural stability of the lower limiting plate 240. In order to achieve the fixation of the lower limiting plate 240, in one embodiment, a connecting stud 223 can be fixedly provided on the bottom supporting plate 220, and a stud avoidance hole can be provided on the lower limiting plate 240, and the connecting stud 223 passes through the stud avoidance hole, and a fixing nut can be used to connect to the connecting stud 223 to press and fix the lower limiting plate 240 on the bottom supporting plate 220.

[0071] Of course, in some other embodiments, the lower limit plate 240 can also be fixed to the bottom support plate 220 by other means, such as by fixing screws, rivets, etc., and the lower limit plate 240 and the bottom support plate 220 can also be an integral structure. In some other embodiments, the bottom connecting plate 241 and the inclined reinforcing rib 242 connected to the lower limit plate 240 can also be omitted, and the lower limit plate 240 can be directly fixed to the left lower side plate 224 and the right lower side plate 225; in addition, the lower limit plate 240 can also be omitted. At this time, in order to better position the elastic support device 260 and the support adjustment pad, as an example, the upper limit plate 230 can be increased in the up and down direction, and the elastic support device 260 and the support adjustment pad can be positioned by relying on the upper limit plate 230.

[0072] The transmission of supporting force between the arch support seat and the bottom support plate 220 is achieved by means of a support distance adjustment device and an elastic support device 260 , which will be further described below.

[0073] In one embodiment, the support adjustment pad as the first distance adjustment device 250 is supported between the bottom support plate 220 and the elastic support device 260. The support adjustment pad can also be a plate, or a structure such as a profile, a frame, etc. For example, a steel plate can be used. In addition, the length direction dimension of the support adjustment pad can be consistent with the length direction dimension of the arch frame connecting seat 210, or it can be set only corresponding to the supporting position of the elastic support device 260 in the upper and lower directions, and it can play the role of supporting the elastic support device 260, for example, it can be set in the middle of the length direction of the leaf spring.

[0074] It should be noted that, in the illustrated embodiment, the leaf spring is arranged in a concave manner, and in some other embodiments, the leaf spring may also be arranged in a convex manner, and the leaf spring support 261 may be supported on the support adjustment pad. In addition, the elastic support device 260 may also be other structures, such as a heavy-duty shock absorber, a coil spring, etc., and multiple ones may be arranged along the length direction of the arch connecting seat 210, and correspondingly, the support adjustment pad may be arranged in multiple places. In order to maintain the position of the support adjustment pad, the support adjustment pad may be fixed to the bottom support plate 220 by bolts.

[0075] In some cases, the height adjustment range of the support adjustment pad may be relatively large. In order to enable the lower limit plate 240 to limit the support adjustment pads of different heights, lower limit plates 240 of different height specifications may be provided. However, in order to avoid too many specifications of the lower limit plate 240, in one embodiment, please refer to Figure 6 The support adjustment pad includes at least one first adjustment pad 271 and at least one second adjustment pad 272. The first adjustment pad 271 is used to be arranged between the second adjustment pad 272 and the bottom support plate 220. The length and width of the first adjustment pad 271 are respectively greater than the length and width of the second adjustment pad 272, that is, the length of the first adjustment pad 271 is greater than the length of the second adjustment pad 272, and the width of the first adjustment pad 271 is greater than the width of the second adjustment pad 272. The left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the lower limit plate 240 are fixedly supported on the first adjustment pad 271. When the height adjustment range of the support adjustment pad is large, this structure can also avoid setting the left lower side plate 224, the side wall lower support plate 222, and the right lower side plate 225 with more height dimensions, which is conducive to simplifying the types of parts and facilitating management and construction.

[0076] The left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the lower limit plate 240 can be fixed on the first adjustment pad 271 by means of threaded fasteners, rivets, pins, welding, bonding, etc. For example, a countersunk hole is set on the bottom surface of the first adjustment pad 271, and a threaded hole is set on the bottom surface of the left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the lower limit plate 240, and a countersunk screw is connected to the threaded hole through the countersunk hole to achieve the fixation of the left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the lower limit plate 240. For another example, a flange structure can also be set on the left lower side plate 224, the side wall lower support plate 222, the right lower side plate 225 and the lower limit plate 240, and connected by flange bolts. For the lower limit plate 240 , a fastener avoidance opening may be further provided on the portion of the first adjustment pad 271 wider than the second adjustment pad 272 , and the fastener avoidance opening is provided for fasteners to pass through to fix the lower limit plate 240 supported on the first adjustment pad 271 .

[0077] In one embodiment, the second distance adjustment device 270 used to be arranged below the transverse support plate 211 to support the transverse support plate 211 includes an adjustable support 251 and an adjustment bolt 252. The adjustable support 251 is arranged on the bottom side of the transverse support plate 211, and the adjustment bolt 252 is threadedly connected to the adjustable support 251. The adjustment bolt 252 is used to adjust the distance between the adjustable support 251 and the transverse support plate 211. The adjustable support 251 can be a plate with a simple structure and good bearing capacity, and can also be a profile, frame or other structure. Please refer to Figure 3 and Figure 4 The adjusting bolt 252 may include a rod and a head. The rod is threadedly connected to a threaded hole set on the adjustable support 251, and the end surface of the head is supported under the transverse support plate 211. By rotating the adjusting bolt 252, the length of the adjusting bolt 252 exposed to the top side of the adjustable support 251 can be changed, that is, the distance between the adjustable support 251 and the transverse support plate 211 can be changed.

[0078] In some other embodiments, the torque transmission part corresponding to the head on the adjusting bolt 252 can also be located in the middle of the length direction of the adjusting bolt 252, so as to facilitate the cooperation between the tool and the torque transmission part; in addition, the adjusting bolt 252 can also be threadedly connected to the transverse support plate 211, and the head end face of the adjusting bolt 252 can be supported on the adjustable support 251; furthermore, the adjusting bolt 252 can also pass through the threaded hole on the transverse support plate 211, the head of the adjusting bolt 252 is located above the transverse support plate 211, and the end of the rod is supported on the adjustable support 251; and the adjusting bolt 252 can also be a stud bolt, which is also called a stud stud or a stud screw, and has threads with opposite rotation directions at both ends. The threaded parts at both ends are respectively threadedly connected to the transverse support plate 211 and the adjustable support 251, which can also realize the adjustment of the spacing between the adjustable support 251 and the transverse support plate 211. For the elastic support device 260 having suitable support surfaces on the upper and lower end surfaces, the adjustable support 251 of the second distance adjustment device 270 can also be supported on the transverse support plate 211 , and the adjustment bolt 252 can also be supported on the support surface of the elastic support device 260 .

[0079] The adjustable support 251 can be moved downward by operating the adjusting bolt 252 to apply pre-pressure to the elastic supporting device 260 , and the supporting force is transmitted between the adjustable support 251 and the transverse supporting plate 211 by relying on the adjusting bolt 252 .

[0080] It should be noted that, in the above-mentioned embodiment, the support distance adjustment device includes a first distance adjustment device 250 and a second distance adjustment device 270, and the first distance adjustment device 250 is a support adjustment pad, which is arranged below the elastic support device 260; and the second distance adjustment device 270 includes an adjustment bolt 252 and an adjustable support 251, which are arranged above the elastic support device 260. However, in some other embodiments, the first distance adjustment device 250 and the second distance adjustment device 270 can be of the same structure, for example, both use a support adjustment pad, or both use an adjustment bolt 252 and an adjustable support 251. In addition, in some other embodiments, the first distance adjustment device 250 and the second distance adjustment device 270 can use only one of them, for example, only use a support adjustment pad to support the elastic support device 260, or only use an adjustment bolt 252 and an adjustable support 251 to support the elastic support device 260. When the support distance adjustment device only uses one of the first distance adjustment device 250 and the second distance adjustment device 270, the elastic support device 260 can be arranged above the support distance adjustment device or below the support distance adjustment device.

[0081] Regarding the adjustment method of the support distance, the hinge structure adopted by the Chinese patent CN219826860U in the background technology needs to be provided with a hinge shaft, a hinge hole, a slide rod, a slide sleeve, a locking screw and a guide groove, which has many parts, a complex structure, a high processing cost, and low reliability. The support adjustment pad in the embodiment of the utility model has a simple structure, stable support, and good reliability. Therefore, in some embodiments, it can be considered to only set the first distance adjustment device 250. The support adjustment pad can be set below the elastic support device 260, such as Figure 7 As shown, in addition, it can also be arranged above the elastic supporting device 260.

[0082] When installing the support vibration reduction device, in order to facilitate the installation of the elastic support device 260 and the support distance adjustment device between the bottom support plate 220 and the end of the arch support 100, in one embodiment, please refer to Figure 4 The supporting vibration reduction device may include an arch lifting device 281, which is used to be arranged between the bottom support plate 220 and the end of the arch support 100, and can push the arch support 100 upward to make the arch support 100 close to the tunnel wall. The left and right dimensions of the adjustable support 251 can be smaller than the horizontal support plate 211, so that an installation space for installing the arch lifting device 281 is formed on the left and right sides of the adjustable support 251. The arch lifting device 281 can be a jack, which is easy to operate, easy to carry and transfer, and can be reused in different positions. In addition, the arch lifting device 281 can be a jack that can set a pressure relief load. The maximum lifting force of the arch lifting device 281 on the arch support 100 can be limited by setting the pressure relief load. After exceeding the maximum lifting force, the jack can unload itself and no longer continue to output the lifting displacement. This is more convenient to operate and is also convenient to reduce the influence of human operation factors.

[0083] In the embodiment of the utility model, the elastic support device 260 and the support distance adjustment device transmit the force between the bottom support plate 220 and the arch support 100. After the support vibration reduction device is installed, the elastic support device 260 not only needs to overcome the gravity of the arch support 100 itself and the downward reverse force that the arch support 100 receives when supporting the tunnel wall, but also needs to provide additional upward elastic support force to the arch support 100. When the transverse support plate 211 is provided, the transverse support plate 211 will also be subject to an upward elastic support force. In this way, when the platform 320 vibrates due to the passage of a train, even if the platform 320 vibrates downward, the elastic deformation of the elastic support device 260 can reduce the influence of the downward vibration displacement on the upward elastic force of the elastic support device 260, thereby ensuring the stable support of the tunnel wall by the arch support 100 and preventing the vibration from being rigidly transmitted to the pipe segment 310, the arch support 100 and the transverse support plate 211 provided in some embodiments, which is helpful to avoid the failure of the fixed connection parts between the structure above the elastic support device 260 and the tunnel wall in the elastic support device 260 due to long-term vibration, and to avoid damage to the connection between the tunnel wall and the elastic support device 260 and the arch support 100 due to vibration.

[0084] In addition, due to the existence of vibration, the elastic support device 260 may be displaced due to the vibration, which eventually leads to the failure of the elastic support device 260. In the embodiment of the utility model, the upper limit plate 230 and / or the lower limit plate 240 in the support vibration reduction device can play a positioning role for the elastic support device 260, thereby preventing the elastic support device 260 from falling out, which is conducive to ensuring the working reliability of the support vibration reduction device. Of course, in some other embodiments, when the elastic support device 260 adopts a leaf spring and the two ends of the leaf spring are connected to the corresponding parts of the support vibration reduction device through the leaf spring support 261, the upper limit plate 230 and / or the lower limit plate 240 can also be used only to protect the structure inside the box body without playing a positioning role.

[0085] In order to enable the support distance adjustment device to be conveniently stacked with the pre-stressed elastic support device 260, so that the elastic support device 260 and the support distance adjustment device can effectively transmit the support force to the arch support 100, and the elastic support device 260 can provide an upward elastic support force to the arch support 100, in one embodiment, please refer to Figure 4, the support vibration reduction device may include a pre-stressing lifting device 282. When the support distance adjustment device is arranged above the elastic support device 260, the pre-stressing lifting device 282 may be arranged between the elastic support device 260 and the transverse support plate 211; when the support distance adjustment device is arranged below the elastic support device 260, the pre-stressing lifting device 282 may be arranged between the elastic support device 260 and the bottom support plate 220. Although the arch frame lifting device 281 is able to fit the arch support 100 to the tunnel wall, the arch frame lifting device 281 cannot apply pre-stress to the elastic support device 260, while the pre-stressing lifting device 282 can apply pre-stress to the elastic support device 260. The pre-stressing lifting device 282 may be a jack, and may be a jack capable of setting a pressure relief load. When a jack capable of setting a pressure relief load is used, the maximum lifting force of the arch frame lifting device 281 on the arch support 100 may be limited by setting the pressure relief load.

[0086] The preload lifting device 282 can fit the arch support 100 to the tunnel wall with a preset support force. At this time, the adjusting bolt 252 can achieve distance adjustment under no-load conditions, which can facilitate the adjustment operation of the adjusting bolt 252. Figure 3 and Figure 4 A locking nut 253 is provided on the adjusting bolt 252. After the adjusting bolt 252 is adjusted into place, the locking nut 253 can be tightly attached to the adjustable support 251, which can prevent loosening, increase the supporting area, and more reliably transmit the supporting force between the horizontal support plate 211 and the adjustable support 251.

[0087] The support distance is adjusted by adjusting the thread of the bolt 252, so that when the top of the adjusting bolt 252 is supported to the transverse support plate 211, the pre-stressing lifting device 282 is removed, and the elastic supporting force of the elastic supporting device 260 can be transmitted through the adjusting bolt 252 and the adjustable support 251. Of course, in other embodiments, when the support distance adjustment device adopts the first distance adjustment device 250 formed by the support adjustment pad, after the pre-stressing lifting device 282 fits the arch support 100 to the tunnel wall with a preset support force, a certain number and / or thickness of support adjustment pads can be used to enable the support adjustment pad to transmit the elastic supporting force of the elastic support device 260. The number of support adjustment pads can be one, or more than two.

[0088] It should be noted that, in actual operation, the arch lifting device 281 can be omitted, and the elastic support device 260 and the support distance adjustment device can be installed by forming a gap between the arch support 100 and the bottom support plate 220 by relying on other devices or manually. In addition, in some other embodiments, the arch lifting device 281 and the pre-compression lifting device 282 can both adopt other structural forms other than jacks. For example, a lifting screw can be threadedly connected to the transverse support plate 211, the head of the lifting screw is located above the transverse support plate 211, and the end can be supported on the bottom support plate 220 as the arch lifting device 281, or the end of the lifting screw can be supported on the elastic support device 260 as the pre-compression lifting device 282.

[0089] The elastic support device 260 is arranged between the bottom support plate 220 and the adjustable support 251, and can reduce the vibration transmitted to the arch support 100 when a train passes through the track 330 on the platform 320. In one embodiment, the elastic support device 260 is a leaf spring, which has strong bearing capacity, low cost and good reliability. Since the leaf spring will change in length when deformed, as a common method in the field, the two ends of the leaf spring can be connected to the adjustable support 251 through the leaf spring support 261. Those skilled in the art should understand that the leaf spring support 261 can position the leaf spring and provide a movable space for the length change of the leaf spring. For example, one end of the leaf spring can be hinged to the leaf spring support 261 on the corresponding side through a coil ear, and the leaf spring support 261 at the other end of the leaf spring includes a fixed connection seat and a connecting rod, and the other end of the leaf spring can be hinged to the connecting rod. For a leaf spring without a coil ear, the leaf spring support 261 can be a sliding seat, which can allow the end of the leaf spring to slide. At least one end of the leaf spring can also be supported only on the adjustable support 251 or other corresponding parts, and the corresponding end of the leaf spring can slide freely when the leaf spring is compressed. It should be noted that the specifications of the leaf spring can be designed according to the load-bearing requirements and installation space of the support and vibration reduction device.

[0090] The following describes a method for tunnel reinforcement using the above tunnel reinforcement device, which includes the following steps:

[0091] Step 1, please refer to Figure 1 and Figure 2 , erect an arch support 100, connect the arch support connection seat 210 supporting the vibration reduction device to the end of the arch support 100, specifically, the end of the arch support 100 can be supported on the transverse support plate 211; in addition, fix the bottom support plate 220 supporting the vibration reduction device to the tunnel abutment 320 through anchor bolts;

[0092] It should be noted that the fixing of the bottom support plate 220 and the platform 320 can also be performed after the arch connection seat 210 is lifted. In addition, when the arch connection seat 210 is not provided, the step of connecting the arch connection seat 210 at the end of the arch support 100 can be omitted.

[0093] Step 2, please refer to Figure 4 An arch frame lifting device 281 is arranged between the corresponding end of the arch frame 100 and the bottom support plate 220 fixed on the platform 320. The arch frame lifting device 281 is used to lift the arch frame connecting seat 210 so that the arch frame 100 connected to the arch frame connecting seat 210 is close to the tunnel wall; the arch frame lifting device 281 can use a jack when lifting the arch frame connecting seat 210.

[0094] In a specific embodiment, the arch lifting device 281 can be arranged between the transverse support plate 211 and the bottom support plate 220. In addition, the arch lifting device 281 can also be arranged between the elastic support device and the bottom support seat.

[0095] Step 3: Install an elastic support device 260 between the bottom support plate 220 and the end of the arch support 100. In a specific embodiment, the elastic support device 260 can be arranged between the bottom support plate 220 and the transverse support plate 211. In a specific embodiment, the elastic support device 260 is a leaf spring, and when leaf spring supports are arranged at both ends of the leaf spring in the length direction, the leaf spring supports can be fixed on the transverse support plate 211.

[0096] Step 4: a pre-compression lifting device is arranged between the corresponding end of the arch support 100 and the elastic support device 260 and / or between the bottom support plate 220 and the elastic support device 260, and the elastic support device is compressed to a preset support force by the pre-compression lifting device.

[0097] In a specific embodiment, the pre-compression lifting device 282 can be arranged between the transverse support plate 211 and the elastic support device 260, and the pre-compression lifting device 282 can move the adjustable support 251 and compress the elastic support device 260 to a preset support force, so that the arch support 100 is subjected to an upward elastic support force and has an upward movement tendency, so that the part of the tunnel wall used to fix the transverse support plate 211 can be prevented from being subjected to the downward force of the arch support 100, thereby preventing the side wall here from being subjected to excessive force from the arch support 100 or being damaged due to vibration. The above-mentioned pre-compression lifting device 282 can be a jack.

[0098] Step 5: Install a support distance adjustment device between the elastic support device 260 compressed in step 4 and the end of the arch support 100 and / or between the elastic support device 260 compressed and the bottom support plate 220, and adjust the support distance so that the support distance adjustment device replaces the pre-stressing lifting device 282 with a preset support force, and the support distance adjustment device can transmit the support force. At this time, the pre-stressing lifting device 282 can be removed, and the arch support 100 can still be subjected to the upward elastic support force and have an upward movement tendency. Of course, due to the limitation of the tunnel wall, the arch support 100 will not actually produce an upward movement.

[0099] When adjusting the support distance by the first distance adjusting device 250, the threaded position of the bolt 252 can be adjusted so that the top of the adjusting bolt 252 is supported to the transverse support plate 211. When adjusting the support distance by the second distance adjusting device 270, the number and / or thickness of the support adjustment pads themselves can be changed.

[0100] The preset supporting force in the embodiment of the utility model can overcome the gravity of the arch support 100 itself and the downward reverse force that the arch support 100 is subjected to in order to support the tunnel wall, and can also provide additional upward elastic supporting force for the arch support 100, and the specific size can be set according to needs.

[0101] Step six, remove the arch lifting device 281. It should be noted that the arch lifting device 281 can be removed before installing the pre-stressing lifting device 282, or after the support vibration reduction device is installed. For example, when the arch support 100 can be maintained in the position lifted by the arch lifting device 281 by other structures or manually, such as when the lateral support plate 211 of the arch connecting seat 210 can be fixed to the side wall of the tunnel through the side wall upper support plate 212, or when enough space can be left between the lateral support plate 211 and the bottom support plate 220 to install the elastic support device 260 and the support distance adjustment device, the arch lifting device 281 can be removed before installing the pre-stressing lifting device 282.

[0102] The above embodiments of the tunnel reinforcement method are not used to limit the order of the steps of the tunnel reinforcement method, and the order of the above steps can be changed when possible. The specific operation methods and corresponding structures of the above corresponding steps can refer to the accompanying drawings and the embodiments of the tunnel reinforcement device in the utility model.

[0103] After the above steps are completed, an upper limit plate 230 is installed on the arch connection seat 210 to protect the components inside the support vibration reduction device. The upper limit plate 230 can be further fixed to the tunnel wall by anchor bolts to ensure installation stability. In addition, a lower limit plate 240 can also be installed.

[0104] In one embodiment, the tunnel reinforcement method further includes a sealing step, wherein the gap between the upper and lower parts of the box body is sealed using an elastic sealant. The elastic sealant can be formed by curing a colloid, which can further protect the support vibration reduction device, thereby improving the service life of the support vibration reduction device and ensuring the performance reliability during use.

[0105] Through the above-mentioned tunnel reinforcement device, the support distance adjustment device can ensure the pre-compression amount of the elastic support device 260 and effectively transmit the supporting force, and can adapt to the unexpected position change of the end of the arch support 100 caused by the arch support 100 being close to the tunnel wall. At the same time, it can avoid the bottom of the tunnel side wall from providing upward bearing force to the arch support 100 and causing damage, and the elastic support device 260 can realize the vibration reduction function. On the whole, the vibration reduction effect can be guaranteed while realizing the support position adjustment of the tunnel reinforcement device, and it is easy to use.

[0106] Embodiments of the support and vibration reduction device in the utility model:

[0107] The structure of the support vibration reduction device is the same as that of the support vibration reduction device in the above-mentioned embodiment of the tunnel reinforcement device, and will not be repeated here.

[0108] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A support and vibration reduction device, used to support an arched support that provides support for a tunnel wall, characterized in that: It includes a bottom support plate, an elastic support device and a support distance adjustment device; The bottom support plate is used to be fixed on the roadbed at the bottom of the tunnel; The elastic support device is used to be arranged between the end of the arch support and the bottom support plate, providing an upward elastic support force and absorbing vibration from the roadbed; The support distance adjustment device is used to be arranged between the end of the arch support and the elastic support device and / or between the elastic support device and the bottom support plate to adjust the support distance.

2. The support and vibration reduction device according to claim 1, characterized in that: The elastic supporting device is a leaf spring.

3. The support and vibration reduction device according to claim 2, characterized in that: The support distance adjustment device comprises a first distance adjustment device, which is a support adjustment pad, and the support adjustment pad is used to adapt to the size change of the tunnel wall by changing the number and / or thickness of the support adjustment pad itself.

4. The support and vibration reduction device according to claim 2, characterized in that: The support distance adjustment device includes a second distance adjustment device, which includes an adjusting bolt and an adjustable support. One end of the adjusting bolt is threadedly connected to the adjustable support. The adjustable support is arranged on the elastic support device or the bottom support plate. The other end of the adjusting bolt is used to correspondingly support the end of the arch support or to correspondingly support the elastic support device. The support distance is adjusted and the supporting force is adjusted and transmitted through the adjusting bolt.

5. The support and vibration reduction device according to claim 2, characterized in that: It includes a pre-stressing and lifting device, which is arranged between the end surface of the arch support and the elastic support device, or between the elastic support device and the bottom support plate. The pre-stressing and lifting device fits the arch support to the tunnel wall with a preset supporting force to facilitate the adjustment of the supporting distance.

6. The support and vibration reduction device according to claim 5, characterized in that: The pre-compression lifting device is a jack.

7. The support and vibration reduction device according to any one of claims 1 to 6, characterized in that: It includes a transverse support plate, a left upper side plate, a left lower side plate, a right upper side plate, a right lower side plate, a side wall upper support plate, a side wall lower support plate, an upper limit plate and a lower limit plate; the transverse support plate is arranged on the end surface of the arch support, and the supporting force is transmitted to the arch support through the transverse support plate; the side wall upper support plate is located below the transverse support plate, and the side wall upper support plate and the transverse support plate form a "┏"-shaped structure; the upper limit plate is vertically arranged on the side of the transverse support plate away from the tunnel wall when in use and extends in the up and down directions, and the upward extending part of the upper limit plate is used to be fixedly connected with the arch support; the left upper side plate, the side wall upper support plate, the right upper side plate, the downward extending part of the upper limit plate and the transverse support plate constitute the upper part of the box body; the left lower side plate, the side wall lower support plate, the right lower side plate, the lower limit plate and the bottom support plate constitute the lower part of the box body; the support distance adjustment device and the elastic support device are arranged in the box body, and there is a gap between the upper and lower parts of the box body, and the gap is used to isolate the vibration from the roadbed.

8. The support and vibration reduction device according to claim 7, characterized in that: The gap between the upper and lower parts of the box body is filled with elastic sealant.

9. The support and vibration reduction device according to claim 7, characterized in that: The support distance adjustment device includes at least one first adjustment pad and at least one second adjustment pad, the first adjustment pad is used to be arranged between the second adjustment pad and the bottom support plate, the length and width of the first adjustment pad are greater than the length and width of the second adjustment pad, and the left lower side plate, the side wall lower support plate, the right lower side plate and the lower limit plate are fixedly supported on the first adjustment pad.

10. A tunnel reinforcement device, comprising: An arch support, the arch support being used to support a tunnel wall; A support vibration reduction device, wherein the support vibration reduction device is used to support the arch support; It is characterized in that the support and vibration reduction device is the support and vibration reduction device according to any one of claims 1 to 9.

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