Reinforcing device for restraining floor heave deformation of straight wall type lining bottom plate

Abstract

The invention belongs to the technical field of tunnel supporting, and provides a reinforcing device for restraining floor heaving deformation of a straight wall type lining bottom plate, the reinforcing device comprises a plurality of supporting modules arranged in the extending direction of a tunnel, and each supporting module comprises two sets of splicing assemblies abutting against each other; the splicing assembly comprises a bottom plate and an arc-shaped top plate, a first sliding pushing mechanism is arranged in the bottom plate, a supporting mechanism is arranged in the direction, close to the side wall of the tunnel, of the top of the bottom plate, a first pushing part used for pushing the first sliding pushing mechanism to move is arranged at the bottom of the supporting mechanism, and the arc-shaped top plate is arranged at the top of the supporting mechanism; a second sliding pushing mechanism is arranged in the arc-shaped top plate, and a second pushing part used for pushing the second sliding pushing mechanism to move is arranged at the top of the supporting mechanism. According to the invention, the bottom plate, the side wall and the top of the heaving floor section of the tunnel can be integrally supported.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel support, and particularly relates to a reinforcement device for suppressing the floor heave deformation of a straight-wall lining floor. Background Art

[0002] The straight-wall tunnel lining structure has the advantages of convenient construction and high space utilization rate. However, under the action of soft surrounding rock, high groundwater pressure and frequent dynamic loads, the tunnel floor often suffers from floor heave deformation diseases, leading to safety hazards such as floor undulation and drainage system failure. Traditional treatments mostly adopt methods such as floor bolt reinforcement, grouting to improve the stratum or thickening the lining, but there are problems such as large construction interference, high material consumption and poor stratum adaptability. Especially when there is an expansive mudstone stratum or the like under the floor, conventional rigid reinforcement is difficult to effectively coordinate the swelling pressure and structural deformation, and is prone to cause secondary floor heave. The existing combined floor heave deformation control devices also have the problem of insufficient multi-directional adjustment ability and are difficult to adapt to complex stress redistribution conditions. Summary of the Invention

[0003] The purpose of the invention is to provide a reinforcement device for suppressing the floor heave deformation of a straight-wall lining floor, so as to solve the above problems and achieve the purpose of overall support for the floor, side wall and top of the tunnel heave section.

[0004] To achieve the above purpose, the invention provides the following solution: A reinforcement device for suppressing the floor heave deformation of a straight-wall lining floor, comprising a plurality of support modules arranged along the tunnel extension direction, and the support module comprises two sets of assembled components that are mutually abutted;

[0005] The assembled component comprises a bottom plate and an arc top plate, a first sliding and pushing mechanism is arranged inside the bottom plate, a support mechanism is arranged at the top of the bottom plate close to the tunnel side wall direction, a first pushing part for pushing the first sliding and pushing mechanism to move is arranged at the bottom of the support mechanism, the arc top plate is arranged at the top of the support mechanism, a second sliding and pushing mechanism is arranged inside the arc top plate, and a second pushing part for pushing the second sliding and pushing mechanism to move is arranged at the top of the support mechanism.

[0006] Preferably, the support mechanism comprises a support outer plate, one side of the support outer plate is arranged close to the tunnel side wall, upper and lower fixing plates are horizontally and fixedly connected to the top and bottom of the other side of the support outer plate respectively, a sliding support plate is vertically and slidably penetrated inside the upper fixing plate, a plurality of support members are arranged between the bottom of the sliding support plate and the lower fixing plate, and the second pushing part is arranged at the top of the sliding support plate.

[0007] Preferably, the first sliding and pushing mechanism includes a plurality of chutes horizontally opened in the bottom plate. The plurality of chutes are arranged in parallel. A lower extrusion plate is slidably connected in each of the plurality of chutes. Between two groups of the bottom plates in a support module, they are abutted against each other through a plurality of the lower extrusion plates. The first pushing part is arranged between the lower fixing plate and the lower extrusion plate.

[0008] Preferably, the first pushing part includes a support leg vertically and fixedly connected to the bottom of the lower fixing plate. A first wedge surface is opened at the bottom of the side wall of the support leg away from the tunnel inner wall. A second wedge surface is opened at the top of the side wall of the lower extrusion plate close to the tunnel inner wall. The bottom of the support leg vertically penetrates the top of the chute and the first wedge surface abuts against the second wedge surface.

[0009] Preferably, a lower extrusion block is abutted between two opposite lower extrusion plates in a support module.

[0010] Preferably, the second sliding and pushing mechanism includes a plurality of arc-shaped chutes formed in the arc-shaped top plate. An arc-shaped extrusion plate is slidably connected in each of the plurality of arc-shaped chutes. Between two groups of the arc-shaped top plates in a support module, they are abutted against each other through a plurality of the arc-shaped extrusion plates. The second pushing part is arranged between the sliding support plate and the arc-shaped extrusion plate.

[0011] Preferably, the second pushing part includes an arc-shaped connecting column fixedly connected to the top of the sliding support plate. A gear is rotatably connected to one end of the arc-shaped connecting column away from the sliding support plate. A second arc-shaped rack is fixedly connected to the side wall of the arc-shaped chute close to the sliding support plate. A first arc-shaped rack is fixedly connected to one end of the arc-shaped extrusion plate close to the sliding support plate. The gear is engaged between the first arc-shaped rack and the second arc-shaped rack.

[0012] Preferably, an upper extrusion block is abutted between two opposite arc-shaped extrusion plates in a support module.

[0013] Preferably, the support member includes a support column. T-shaped connection heads are respectively arranged at both ends of the support column. T-shaped through grooves are respectively opened at the bottom of the sliding support plate and the top of the lower fixing plate. Two groups of T-shaped connection heads at both ends of the support column are respectively clamped in the two T-shaped through grooves.

[0014] Preferably, a plurality of drainage grooves are opened at the top of the bottom plate. The plurality of drainage grooves are arranged along the extending direction of the tunnel.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] 1. The reinforcement device of the present invention can form a complete full support among the bottom, side walls and top of the tunnel, making the tunnel after support have strong integrity and excellent support effect.

[0017] 2. At the same time, if the floor heave of the tunnel continues to develop, the reinforcement device in this application can automatically strengthen the support strength between the side walls, top and bottom of the tunnel under the action of the floor heave phenomenon, ensuring the effectiveness of tunnel support and reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a cross-sectional view of the reinforcement device of the present invention;

[0020] Figure 2 It is Figure 1 the partial enlarged view of A in

[0021] Figure 3 It is Figure 1 the partial enlarged view of B in

[0022] Figure 4 It is the top view of the bottom plate of the present invention;

[0023] Figure 5 It is the side view of the support mechanism of the present invention;

[0024] Wherein, 1, bottom plate; 2, lower extrusion plate; 3, support outer plate; 4, support leg; 5, jack; 6, lower extrusion block; 7, drainage groove; 8, first wedge surface; 9, second wedge surface; 10, chute; 11, sliding support plate; 12, arc top plate; 13, upper extrusion block; 14, arc extrusion plate; 15, first arc rack; 16, second arc rack; 17, arc connecting column; 18, gear; 19, stop block; 20, support column; 21, upper fixing plate; 22, chute; 23, T-shaped through groove; 24, lower fixing plate; 25, T-shaped connecting head; 26, anchor perforation; 27, anchor; 28, arc chute. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Embodiment 1:

[0028] Referring to Figures 1 - 5 , the present invention provides a reinforcement device for suppressing the floor heave deformation of a straight-wall lining floor, including a plurality of support modules arranged along the tunnel extension direction, and each support module includes two sets of assembled components that abut against each other;

[0029] The assembled component includes a bottom plate 1 and an arc-shaped top plate 12. A first sliding and pushing mechanism is arranged inside the bottom plate 1. A support mechanism is arranged at the top of the bottom plate 1 close to the tunnel side wall. A first pushing part for pushing the first sliding and pushing mechanism to move is arranged at the bottom of the support mechanism. The arc-shaped top plate 12 is arranged on the top of the support mechanism. A second sliding and pushing mechanism is arranged inside the arc-shaped top plate 12. A second pushing part for pushing the second sliding and pushing mechanism to move is arranged at the top of the support mechanism.

[0030] The main function of the bottom plate 1 is to be placed on the tunnel bottom surface to provide a support point for support; the main function of the support mechanism is to support the arc-shaped top plate 12 at the tunnel top and fit with the tunnel side wall at the same time; the main function of the arc-shaped top plate 12 is to provide support for the tunnel top; the main function of the first sliding and pushing mechanism is that when the bottom plate 1 moves upward under the action of floor heave, under the action of the first pushing part on the support mechanism, the two bottom plates 1 in the support module are squeezed more tightly and at the same time the support mechanism is more closely attached to the tunnel side wall; the main function of the second sliding and pushing mechanism is that when the bottom plate 1 moves upward under the action of floor heave, under the action of the second pushing part on the support mechanism, the two arc-shaped top plates 1 in the support module are squeezed more tightly, making the arc-shaped top plate 12 more closely attached to the tunnel top, and cooperating with the movement of the bottom plate 1 and the support mechanism, making the overall reinforcement device of the present application more closely attached to the tunnel to better provide support for the tunnel. Overall, the reinforcement device of the present invention can form a full support between the tunnel bottom, side wall, and top, making the tunnel after support have strong integrity and excellent support effect. At the same time, if the floor heave situation of the tunnel continues to develop, the reinforcement device in the present application can automatically strengthen the support strength between the side wall, top, and bottom of the tunnel under the action of the floor heave phenomenon, ensuring the effectiveness of tunnel support and reinforcement.

[0031] For a further optimized solution, the supporting mechanism includes a supporting outer plate 3. One side of the supporting outer plate 3 is arranged close to the tunnel side wall. On the other side of the supporting outer plate 3, an upper fixing plate 21 and a lower fixing plate 24 are horizontally and fixedly connected to the top and bottom respectively. A sliding support plate 11 is vertically and slidably penetrated through the upper fixing plate 21. A plurality of supporting members are arranged between the bottom of the sliding support plate 11 and the lower fixing plate 24. The second pushing part is arranged on the top of the sliding support plate 11.

[0032] For a further optimized solution, a chute 22 is formed in the upper fixing plate 21, and the sliding support plate 11 is slidably penetrated through the chute 22.

[0033] As Figure 1 shown, the side of the supporting outer plate 3 close to the tunnel side wall fits with the tunnel side wall to form a support for the tunnel side wall. The upper fixing plate 21 and the lower fixing plate 24 are arranged inside the supporting outer plate 3, which is convenient for construction workers to erect the supporting members.

[0034] For a further optimized solution, the first sliding and pushing mechanism includes a plurality of chutes 10 horizontally formed in the bottom plate 1. The plurality of chutes 10 are arranged in parallel. A lower pressing plate 2 is slidably connected in each of the plurality of chutes 10. Between the two groups of bottom plates 1 in one support module, they are abutted against each other through a plurality of lower pressing plates 2. The first pushing part is arranged between the lower fixing plate 24 and the lower pressing plate 2.

[0035] As Figure 1 and Figure 4 shown, between the two groups of bottom plates 1, along the extending direction of the tunnel, a plurality of lower pressing plates 2 are aligned with each other and are abutted against each other in pairs.

[0036] For a further optimized solution, the first pushing part includes a supporting leg 4 vertically and fixedly connected to the bottom of the lower fixing plate 24. A first wedge surface 8 is formed at the bottom of the side wall of the supporting leg 4 away from the tunnel inner wall. A second wedge surface 9 is formed at the top of the side wall of the lower pressing plate 2 close to the tunnel inner wall. The bottom of the supporting leg 4 vertically penetrates through the top of the chute 10 and the first wedge surface 8 abuts against the second wedge surface 9.

[0037] For a further optimized solution, a plurality of insertion holes 5 are formed on both sides of the top of the bottom plate 1, which is convenient for the supporting leg 4 to be inserted into the bottom plate 1 and contact with the lower pressing plate 2.

[0038] As Figure 1 shown, affected by the floor heave effect, the bottom plate 1 has a tendency to lift upward. At this time, under the limiting action of the arc-shaped top plate 12, the supporting leg 4 moves downward relative to the bottom plate 1. While the supporting leg 4 moves relatively, through the relative sliding of the first wedge surface 8 and the second wedge surface 9, the lower pressing plate 2 on the left moves to the right, and the lower pressing plate 2 on the right moves to the left. Through the mutual pushing between the two lower pressing plates 2, the two side bottom plates 1 drive the two side supporting outer plates 3 to move towards the respective adjacent tunnel side walls, enhancing the support effect on the tunnel.

[0039] For a further optimized solution, a lower extrusion block 6 is abutted between two opposite lower extrusion plates 2 within a support module.

[0040] As Figure 1 shown, after laying the bottom plate 1, by placing a lower extrusion block 6 with a suitable size between the two lower extrusion plates 2, the requirement for the dimensional accuracy of the bottom plate 1 can be reduced, so as to be applicable to tunnel support work of more sizes.

[0041] For a further optimized solution, the second sliding and pushing mechanism includes a number of arc-shaped chutes 28 formed in the arc-shaped top plate 12 in a conforming manner. A number of arc-shaped extrusion plates 14 are respectively slidably connected in the arc-shaped chutes 28. Between two groups of arc-shaped top plates 12 within a support module, they are abutted against each other through a number of arc-shaped extrusion plates 14. The second pushing part is arranged between the sliding support plate 11 and the arc-shaped extrusion plate 14.

[0042] For a further optimized solution, between two groups of arc-shaped top plates 12, along the extending direction of the tunnel, a number of arc-shaped extrusion plates 14 are aligned with each other and abutted against each other in pairs.

[0043] For a further optimized solution, the second pushing part includes an arc-shaped connecting column 17 fixedly connected to the top of the sliding support plate 11. One end of the arc-shaped connecting column 17 far from the sliding support plate 11 is rotatably connected with a gear 18. A second arc-shaped rack 16 is fixedly connected to the side wall of the arc-shaped chute 28 close to the sliding support plate 11. One end of the arc-shaped extrusion plate 14 close to the sliding support plate 11 is fixedly connected with a first arc-shaped rack 15. The gear 18 is engaged between the first arc-shaped rack 15 and the second arc-shaped rack 16.

[0044] As Figure 1 and Figure 2 shown, affected by the bottom heave effect, under the upward lifting trend of the bottom plate 1, the bottom plate 1 pushes the sliding support plate 11 upward through the support outer plate 3. At this time, under the limiting effect of the arc-shaped top plate 12, the sliding support plate 11 moves upward relative to the arc-shaped top plate 12. While the sliding support plate 11 moves relatively, it will drive the arc-shaped connecting column 17 to move toward the inner side of the arc-shaped top plate 12. At this time, the gear 18 moves toward the inner side of the arc-shaped top plate 12 relative to the second arc-shaped rack 16 and rotates itself. Under the rotation of the gear 18, it pushes the first arc-shaped rack 15 to move toward the inner side of the arc-shaped top plate 12, thereby realizing the movement of the left arc-shaped extrusion plate 14 to the right and the movement of the right lower extrusion plate 2 to the left. Through the mutual pushing between the two arc-shaped extrusion plates 14, the two arc-shaped top plates 12 on both sides move respectively toward the directions of the tunnel tops close to them, enhancing the support effect on the tunnel top.

[0045] For a further optimized solution, an upper extrusion block 13 is abutted between two opposite arc-shaped extrusion plates 14 within a support module.

[0046] AsFigure 1 and Figure 3 As shown in Figure 3 , after the arc-shaped top plate 12 is erected, by placing the upper extrusion block 13 of a suitable size between the two arc-shaped extrusion plates 14, the dimensional accuracy requirements for the arc-shaped top plate 12 and the arc-shaped extrusion plates 14 can be reduced, so as to be applicable to tunnel support work of more sizes.

[0047] In a further optimized solution, a stop block 19 is fixedly connected to the bottom of the side of the arc-shaped extrusion plate 14 away from the arc-shaped top plate 12. The upper extrusion block 13 is placed between the two stop blocks 19, which can reduce the placement difficulty of the upper extrusion block 13 during the construction process and prevent the upper extrusion block 13 from falling before being extruded.

[0048] In a further optimized solution, the support member includes a support column 20. T-shaped connectors 25 are respectively arranged at both ends of the support column 20. T-shaped through grooves 23 are respectively formed at the bottom of the sliding support plate 11 and the top of the lower fixing plate 24. The two groups of T-shaped connectors 25 at both ends of the support column 20 are respectively clamped in the two T-shaped through grooves 23.

[0049] As Figure 5 shown in Figure 5 , according to the tunnel size, a support column 20 of a suitable length is selected, and by laterally inserting the T-shaped connector 25 into the T-shaped through groove 23, the height of the sliding support plate 11 is fixed.

[0050] In a further optimized solution, a plurality of drainage grooves 7 are formed at the top of the bottom plate 1, and the plurality of drainage grooves 7 are arranged along the extension direction of the tunnel.

[0051] As Figure 1 shown in Figure 1 , the main function of the drainage groove 7 is to enable the water between the bottom of the tunnel and the bottom plate 1 to be discharged smoothly, avoiding accumulation.

[0052] The working process of this embodiment is as follows:

[0053] The construction workers first lay a plurality of bottom plates 1 on the floor heave section of the tunnel, align the corresponding lower extrusion plates 2 in pairs, and then place the lower extrusion blocks 6 between the lower extrusion plates 2. Then, by inserting the support legs 4 into the jacks 5, the support outer plates 3 and the arc-shaped top plate 12 are connected to the bottom plate 1 and contact the tunnel side wall and the top wall. Then, the upper extrusion block 13 is placed on the top of the tunnel, and then the support column 20 is fixedly clamped in the support outer plate 3 to fix the height of the sliding support plate 11, completing the erection of the reinforcement device.

[0054] During the reinforcement support process, if the floor heave of the tunnel develops, the floor slab 1 will have an upward movement trend. At this time, the support legs 4 move downward relative to the floor slab 1, causing the corresponding lower extrusion plates 2 on the left and right to push against each other, making the floor slab 1 drive the support outer plate 3 to move towards the tunnel sidewall. At the same time, the arc connecting column 17 moves into the arc roof 12, causing the corresponding arc extrusion plates 14 on the left and right to push against each other, making the arc roof 12 move towards the tunnel top wall, automatically strengthening the support strength between the sidewall, top, and bottom of the tunnel to ensure tunnel support.

[0055] Embodiment 2:

[0056] The difference between this embodiment and Embodiment 1 is only that a number of bolt perforations 26 are vertically formed on the floor slab 1, and bolts 27 are respectively inserted into the a number of bolt perforations 26.

[0057] As Figure 1 and Figure 4 shown, the inner diameter of the bolt perforation 26 is larger than the outer diameter of the bolt 27 to avoid restricting the movement of the floor slab 1 by the bolt 27. By arranging the bolts 27 at the bottom of the tunnel, the connection strength between the floor slab 1 and the bottom of the tunnel can be increased, and at the same time, the strength of the floor heave section of the tunnel can be compensated.

[0058] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0059] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A reinforcement device for suppressing the floor heave deformation of a straight-wall lining floor, characterized in that It includes a number of support modules arranged along the extension direction of the tunnel, and the support modules include two sets of assembled components that abut against each other; The assembled component includes a bottom plate (1) and an arc-shaped top plate (12). A first sliding and pushing mechanism is arranged in the bottom plate (1). A support mechanism is arranged at the top of the bottom plate (1) in the direction close to the tunnel side wall. A first pushing part for pushing the first sliding and pushing mechanism to move is arranged at the bottom of the support mechanism. The arc-shaped top plate (12) is arranged at the top of the support mechanism. A second sliding and pushing mechanism is arranged in the arc-shaped top plate (12). A second pushing part for pushing the second sliding and pushing mechanism to move is arranged at the top of the support mechanism.

2. The reinforcement device for suppressing the floor heave deformation of the straight wall lining floor according to claim 1, characterized in that: The support mechanism includes a support outer plate (3). One side of the support outer plate (3) is arranged close to the tunnel side wall. Upper fixing plates (21) and lower fixing plates (24) are horizontally and fixedly connected to the top and bottom of the other side of the support outer plate (3) respectively. A sliding support plate (11) is vertically and slidably penetrated in the upper fixing plate (21). A number of support members are arranged between the bottom of the sliding support plate (11) and the lower fixing plate (24). The second pushing part is arranged at the top of the sliding support plate (11).

3. The reinforcement device for suppressing the floor heave deformation of the straight-wall lining floor according to claim 2, wherein: The first sliding and pushing mechanism includes a number of chutes (10) horizontally opened in the bottom plate (1). The a number of chutes (10) are arranged in parallel. Lower pressing plates (2) are respectively slidably connected in the a number of chutes (10). The two bottom plates (1) in one support module are abutted against each other through the a number of lower pressing plates (2). The first pushing part is arranged between the lower fixing plate (24) and the lower pressing plate (2).

4. The reinforcement device for suppressing the floor heave deformation of the straight wall lining floor according to claim 3, wherein: The first pushing part includes a support leg (4) vertically and fixedly connected to the bottom of the lower fixing plate (24). A first wedge surface (8) is opened at the bottom of the side wall of the support leg (4) away from the tunnel inner wall. A second wedge surface (9) is opened at the top of the side wall of the lower pressing plate (2) close to the tunnel inner wall. The bottom of the support leg (4) vertically penetrates the top of the chute (10) and the first wedge surface (8) abuts against the second wedge surface (9).

5. The reinforcement device for suppressing the floor heave deformation of the straight-wall lining floor according to claim 3, wherein: A lower pressing block (6) is abutted between two opposite lower pressing plates (2) in one support module.

6. The reinforcement device for suppressing the floor heave deformation of the straight-wall lining floor according to claim 2, wherein: The second sliding and pushing mechanism includes a number of arc-shaped chutes (28) formed in the arc-shaped top plate (12). Arc-shaped pressing plates (14) are respectively slidably connected in the a number of arc-shaped chutes (28). The two arc-shaped top plates (12) in one support module are abutted against each other through the a number of arc-shaped pressing plates (14). The second pushing part is arranged between the sliding support plate (11) and the arc-shaped pressing plate (14).

7. A reinforcement device for suppressing the floor heave deformation of the bottom slab of a straight wall lining, as claimed in claim 6, wherein: The second pushing part includes an arc-shaped connecting column (17) fixedly connected to the top of the sliding support plate (11). One end of the arc-shaped connecting column (17) far away from the sliding support plate (11) is rotatably connected with a gear (18). A second arc-shaped rack (16) is fixedly connected to a side wall of the arc-shaped sliding groove (28) close to the sliding support plate (11). One end of the arc-shaped pressing plate (14) close to the sliding support plate (11) is fixedly connected with a first arc-shaped rack (15). The gear (18) is engaged between the first arc-shaped rack (15) and the second arc-shaped rack (16).

8. The reinforcement device for suppressing the floor heave deformation of the straight wall lining floor according to claim 6, characterized in that: An upper pressing block (13) is abutted between two opposite arc-shaped pressing plates (14) in one of the support modules.

9. The reinforcement device for suppressing the floor heave deformation of the straight wall lining floor according to claim 2, wherein: The support member includes a support column (20). T-shaped connecting heads (25) are respectively arranged at two ends of the support column (20). T-shaped through grooves (23) are respectively formed in the bottom of the sliding support plate (11) and the top of the lower fixing plate (24). Two groups of T-shaped connecting heads (25) at two ends of the support column (20) are respectively clamped in the two T-shaped through grooves (23).

10. The reinforcement device for suppressing the floor heave deformation of the straight wall lining floor according to claim 1, wherein: A plurality of drain grooves (7) are formed in the top of the bottom plate (1). The plurality of drain grooves (7) are arranged along the extending direction of the tunnel.

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