Detachable anti-rolling stone device for tunnel reverse slope construction

Abstract

The utility model provides a detachable anti-rolling stone device for tunnel reverse slope construction, which relates to the technical field of tunnel engineering and comprises a slag blocking wall, an anti-rolling stone device and an anti-rolling stone device. The fixing rod extends in the thickness direction of the slag blocking wall and is suitable for being connected with a slope, and the slag blocking wall is connected with the fixing rod through the matching part; one end of the supporting piece is detachably connected with the slope, and the other end of the supporting piece is suitable for being connected with one side of the slag blocking wall in the thickness direction. According to the anti-rolling stone device, the slag blocking wall is detachably arranged on the slope through the fixing rods and the supporting pieces, so that the slag blocking wall can be reused and can be flexibly arranged according to site conditions, the construction cost of tunnel reverse slope construction is reduced, and the construction efficiency of the tunnel reverse slope construction is improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, and more specifically, to a detachable anti-rockfall device for tunnel reverse slope construction. Background Technology

[0002] Tunnel reverse slope construction is a construction method used under special terrain conditions. The tunnel excavation direction is opposite to the natural ground slope. When smooth blasting is used in the tunnel construction process, the rolling rocks generated by the blasting can easily slide down the slope, seriously threatening the safety of personnel and equipment.

[0003] In existing technologies, concrete is poured on slopes to form a retaining wall to block falling rocks. However, the retaining wall cannot be reused, and after construction is completed, time is required to break and dismantle the retaining wall, which reduces construction efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a detachable anti-rockfall device for tunnel reverse slope construction, thereby improving the aforementioned problems. To achieve this objective, the technical solution adopted by this invention is as follows:

[0005] This application provides a detachable anti-rockfall device for tunnel reverse slope construction, comprising: a rockfall barrier wall, the rockfall barrier wall being provided with a mating part extending in the thickness direction; a fixing rod, the fixing rod extending in the thickness direction of the rockfall barrier wall and adapted to connect with a slope, the rockfall barrier wall being connected to the fixing rod through the mating part; and a support member, one end of the support member being detachably connected to the slope, and the other end of the support member being adapted to connect to one side of the rockfall barrier wall in the thickness direction.

[0006] The beneficial effects of this utility model are as follows:

[0007] This utility model's retaining wall is detachably installed on a slope using fixing rods and supporting components. This allows the retaining wall to be reused and flexibly installed according to site conditions, reducing construction costs and improving efficiency in tunnel reverse slope construction. Furthermore, the retaining wall is initially fixed to the slope through a mating part that engages with the fixing rod, and one end of the supporting component is fixed to the slope to further secure the retaining wall. This ensures the retaining wall is stably fixed to the slope and can reliably block falling rocks, thus guaranteeing its protective capability.

[0008] According to some embodiments of the present invention, the support member includes a support rod and a connecting plate. The connecting plate is configured as two, and the two connecting plates are rotatably disposed at both ends of the support rod. The two connecting plates are detachably connected to the slope and the retaining wall, respectively.

[0009] According to some embodiments of the present invention, the end of the support rod is provided with a first universal joint, and the connecting plate is provided with a second universal joint, wherein the first universal joint and the second universal joint are rotatably connected.

[0010] According to some embodiments of the present invention, the support rod includes a sleeve and a slide rod, a portion of the slide rod is movably disposed within the sleeve, a first universal joint is disposed at the end of the sleeve opposite to the slide rod, and a first universal joint is disposed at the end of the slide rod opposite to the sleeve.

[0011] According to some embodiments of the present invention, the support rod further includes a locking sleeve, which is movably and rotatably connected to the sleeve, and the locking sleeve moves and rotates to fix the axial position of the sleeve and the slide rod.

[0012] According to some embodiments of the present invention, the mating part is constructed as a mating groove provided at the bottom of the slag barrier, and the slag barrier is connected to the fixing rod through the mating groove.

[0013] According to some embodiments of the present invention, the mating groove penetrates the slag-blocking wall in the thickness direction, and the slag-blocking wall is slidably connected to the fixing rod through the mating groove.

[0014] According to some embodiments of the present invention, a sponge pad and a fixing buckle are also included. The sponge pad is disposed on the other side of the slag barrier in the thickness direction, and the fixing buckle is adapted to connect with the slag barrier and to fix the sponge pad to the slag barrier.

[0015] According to some embodiments of the present invention, the fixing buckle includes a first split part and two second split parts. The first split part extends in the length direction and is located on the side of the sponge pad away from the slag barrier wall. The two second split parts are respectively disposed at both ends of the first split part and extend in the thickness direction. The two second split parts are respectively connected to the slag barrier wall by fasteners.

[0016] According to some embodiments of the present invention, one end of the fixing rod is further provided with a stop bar, the stop bar extends in the height direction and is located on the side of the sponge pad away from the slag barrier wall, and the stop bar is adapted to contact the sponge pad.

[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the anti-rolling stone device of this utility model;

[0020] Figure 2 This is a schematic diagram of the slag-retaining wall of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the support component of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting plate of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the fixing rod of this utility model;

[0024] Figure 6 This is a schematic diagram of the fixing buckle of this utility model.

[0025] Marked in the diagram: 1. Anti-rolling stone device;

[0026] 10. Slag retaining wall; 11. Matching channel;

[0027] 20. Fixing rod; 21. Stop bar;

[0028] 30. Support component; 31. Support rod; 311. First universal joint; 312. Sleeve; 313. Slide rod; 314. Locking sleeve; 32. Connecting plate; 321. Second universal joint;

[0029] 40. Sponge pad;

[0030] 50. Fixing buckle; 51. First split part; 52. Second split part; 53. Fastener. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0032] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-6 As shown, this embodiment provides a detachable anti-rockfall device 1 for tunnel reverse slope construction, including: a rockfall barrier 10, a fixing rod 20, and a support member 30. The rockfall barrier 10 is provided with a mating part extending in the thickness direction. The fixing rod 20 extends in the thickness direction of the rockfall barrier 10 and is adapted to connect with the slope. The rockfall barrier 10 is connected to the fixing rod 20 through the mating part. One end of the support member 30 is detachably connected to the slope, and the other end of the support member 30 is adapted to connect to one side of the rockfall barrier 10 in the thickness direction.

[0034] In some embodiments, the retaining wall 10 is the main protective structure of the anti-rolling stone device 1. The retaining wall 10 is used to block stones or other objects sliding down from above. The retaining wall 10 is provided with a mating part that extends along the thickness direction of the retaining wall 10. The fixing rod 20 is fixed to the slope and is adapted to cooperate with the mating part to connect the retaining wall 10 and the fixing rod 20, thereby initially fixing the retaining wall 10 to the slope. One end of the support member 30 is detachably connected to the slope, so that the support member 30 can be flexibly adjusted or removed according to actual needs. The other end of the support member 30 is connected to one side of the retaining wall 10 in the thickness direction to provide additional support and stability, so that the retaining wall 10 can be more stably fixed to the slope and can help the retaining wall 10 better resist the impact force caused by rolling stones.

[0035] Understandably, when installing the anti-rolling stone device 1 of this application, the fixing rod 20 is first fixed to the slope. Here, the fixing rod 20 can be fixed to the slope by a fastener (the fastener can be an expansion bolt, etc., which is not limited here). Then, the mating part of the slag barrier wall 10 is mated with the fixing rod 20 to achieve the initial fixation of the slag barrier wall 10. Next, the free end of the support member 30 on one side of the thickness direction of the slag barrier wall 10 is fixed to the slope to further fix the slag barrier wall 10 to the slope.

[0036] It is worth mentioning that traditional retaining walls are usually formed by directly pouring concrete onto the slope. After construction is completed, the traditional retaining walls need to be broken up and dismantled.

[0037] The slag retaining wall 10 of this application can be dismantled on a slope, thereby enabling the slag retaining wall 10 to be reused, reducing construction costs, and reducing the time spent on crushing and dismantling the slag retaining wall 10, thus improving construction efficiency.

[0038] According to the present invention, a detachable anti-rockfall device 1 for tunnel reverse slope construction is provided. The rockfall barrier 10 is detachably installed on the slope via a fixing rod 20 and a support member 30. This allows the rockfall barrier 10 to be reused and flexibly installed according to site conditions, reducing the construction cost and improving the construction efficiency of tunnel reverse slope construction. At the same time, the rockfall barrier 10 is initially fixed to the slope by cooperating with the fixing rod 20 through a mating part, and one end of the support member 30 is fixed to the slope to further fix the rockfall barrier 10 to the slope. This allows the rockfall barrier 10 to be stably fixed to the slope, and the fixed rockfall barrier 10 can stably block falling rocks, thereby ensuring the protective capability of the rockfall barrier 10.

[0039] According to some embodiments of the present invention, the support member 30 includes a support rod 31 and a connecting plate 32. The connecting plate 32 is constructed as two, and the two connecting plates 32 are rotatably disposed at both ends of the support rod 31. The two connecting plates 32 are detachably connected to the slope and the slag retaining wall 10 respectively.

[0040] In some embodiments, two connecting plates 32 are located at the two ends of the support rod 31 and can rotate freely relative to the end of the support rod 31. Thus, after the anti-rolling stone device 1 is installed and the slag barrier wall 10 is connected to the fixed rod 20, the connecting plate 32 at one end of the support rod 31 is connected and fixed to the slag barrier wall 10. Then, the support rod 31 is rotated so that the support rod 31 tilts and extends toward the slope. Immediately afterwards, the connecting plate 32 at the other end of the support rod 31 is rotated so that the connecting plate 32 at the other end of the support rod 31 is attached to the slope and connected and fixed.

[0041] Therefore, by rotating the two connecting plates 32 to the two ends of the support rod 31 respectively, the support member 30 can be adjusted to the most suitable support angle. At the same time, the two connecting plates 32 are respectively attached to the surfaces of the slope and the slag barrier wall 10, so that the two connecting plates 32 can be stably fixed to the slope and the slag barrier wall 10 respectively. This makes the fixing effect between the slag barrier wall 10 and the slope better and improves the anti-rolling stone ability of the slag barrier wall 10.

[0042] In some embodiments, the connecting plate 32 is provided with a plurality of through holes, and the slag retaining wall 10 is provided with a plurality of first threaded holes corresponding one-to-one with the plurality of through holes. The screw passes through the corresponding through hole and is threadedly connected to the corresponding first threaded hole to achieve the connection and fixation between the connecting plate 32 and the slag retaining wall 10. Similarly, the slope is provided with a plurality of second threaded holes corresponding one-to-one with the plurality of through holes. The screw passes through the corresponding through hole and is threadedly connected to the corresponding second threaded hole to achieve the connection and fixation between the connecting plate 32 and the slope.

[0043] According to some embodiments of the present invention, the end of the support rod 31 is provided with a first universal joint 311, and the connecting plate 32 is provided with a second universal joint 321, and the first universal joint 311 and the second universal joint 321 are rotatably connected.

[0044] It is understandable that the rotational connection between the support rod 31 and the connecting plate 32 is achieved through the rotational connection of the first universal joint 311 and the second universal joint 321, so that the anti-rolling stone device 1 can be used in various complex construction environments, thereby enhancing the adaptability of the support member 30 to different terrain conditions.

[0045] Of course, since the support rod 31 and the connecting plate 32 can be freely adjusted in angle, the support member 30 can better fit the terrain, thereby providing more stable support for the slag retaining wall 10 and effectively preventing the slag retaining wall 10 from failing due to irregular terrain.

[0046] It should be noted that a connecting post is provided on the side of the connecting plate 32 facing the second universal joint 321, and the outer peripheral wall of the connecting post is provided with external threads. A connecting hole is provided on the side of the second universal joint 321 facing the connecting plate 32, and the inner peripheral wall of the connecting hole is provided with internal threads. The internal threads and external threads are threaded together to connect the connecting plate 32 and the second universal joint 321.

[0047] In other embodiments, the end of the support rod 31 is provided with a ball head, and the connecting plate 32 is provided with a ball groove suitable for receiving the ball head. The ball head is rotatably received in the ball groove, thereby realizing the rotational connection between the support rod 31 and the connecting plate 32.

[0048] According to some embodiments of the present invention, the support rod 31 includes a sleeve 312 and a slide rod 313. Part of the slide rod 313 is movably disposed inside the sleeve 312. A first universal joint 311 is provided at one end of the sleeve 312 away from the slide rod 313, and a first universal joint 311 is provided at one end of the slide rod 313 away from the sleeve 312.

[0049] In some embodiments, the sleeve 312 is a hollow tubular structure that can accommodate a section of the slide rod 313. The slide rod 313 can move axially along the sleeve 312, thereby adjusting the overall length of the support rod 31. Thus, by adjusting the axial position between the slide rod 313 and the sleeve 312, the overall length of the support rod 31 can be adjusted, allowing the support member 30 to flexibly adjust its length according to specific terrain conditions. This enables the support member 30 to maintain optimal angle support to adapt to support requirements at different angles and heights.

[0050] It is worth mentioning that by moving the slide bar 313 so that it is housed as much as possible within the sleeve 312, the length of the support member 30 can be shortened, thereby reducing the space occupied by the support member 30 and facilitating its transportation and storage.

[0051] According to some embodiments of the present invention, the support rod 31 further includes a locking sleeve 314, which is movably and rotatably connected to the sleeve 312. The locking sleeve 314 moves and rotates to fix the axial position of the sleeve 312 and the slide rod 313.

[0052] In some embodiments, the sleeve 312, slide bar 313, and locking sleeve 314 are designed similarly to the structure of a telescopic mop handle. The sleeve 312 has multiple deformation plates at its free end facing the slide bar 313, spaced circumferentially. The inner diameter of the locking sleeve 314 gradually decreases axially away from the sleeve 312. The outer peripheral walls of the multiple deformation plates are provided with a first thread, and the inner peripheral wall of the locking sleeve 314 is provided with a second thread, with the first and second threads engaging. Thus, by rotating the locking sleeve 314, the free ends of the multiple deformation plates can be deformed radially toward the slide bar 313 and pressed against the outer peripheral wall of the slide bar 313, thereby fixing the axial position of the sleeve 312 and the slide bar 313.

[0053] In other embodiments, the support rod 31 includes a sleeve 312 and a slide rod 313. The inner peripheral wall of the sleeve 312 is provided with a third thread, and the outer peripheral wall of the slide rod 313 is provided with a fourth thread. The third thread and the fourth thread are threadedly engaged. Thus, by rotating the slide rod 313 relative to the sleeve 312, the axial position of the slide rod 313 and the sleeve 312 can be adjusted, thereby adjusting the axial length of the support rod 31.

[0054] According to some embodiments of the present invention, the mating part is constructed as a mating groove 11 provided at the bottom of the slag barrier 10, and the slag barrier 10 is connected to the fixing rod 20 through the mating groove 11.

[0055] In some embodiments, the bottom of the slag barrier wall 10 is provided with a mating groove 11 extending in the thickness direction. The slag barrier wall 10 is connected to the fixing rod 20 through the mating groove 11. After the fixing rod 20 is engaged with the mating groove 11, the inner peripheral wall of the mating groove 11 can restrict the outer peripheral wall of the fixing rod 20, thereby preventing the slag barrier wall 10 from moving relative to the slope in the length direction, thus achieving the initial fixation of the slag barrier wall 10.

[0056] According to some embodiments of the present invention, the mating groove 11 penetrates the slag-blocking wall 10 in the thickness direction, and the slag-blocking wall 10 is slidably connected to the fixing rod 20 through the mating groove 11.

[0057] In some embodiments, since the mating groove 11 penetrates the slag-blocking wall 10 in the thickness direction, the slag-blocking wall 10 can slide relative to the fixed rod 20 in the thickness direction after it is connected to the fixed rod 20 through the mating groove 11.

[0058] Therefore, when installing the anti-rolling stone device 1, the slag barrier wall 10 is first matched with the fixing rod 20, and then one end of the support member 30 is connected and fixed to the slope. Since the matching point (second threaded hole) on the slope and one end of the support member 30 needs to be set in advance, when connecting the matching point of the support member 30 and the slope, the slag barrier wall 10 can be moved in the thickness direction to adjust the relative position of the support member 30 in the thickness direction, so that the support member 30 can be stably and accurately connected to the matching point of the slope, which facilitates the installation efficiency of the anti-rolling stone device 1.

[0059] According to some embodiments of the present invention, the anti-rolling stone device 1 further includes a sponge pad 40 and a fixing buckle 50. The sponge pad 40 is disposed on the other side of the slag barrier wall 10 in the thickness direction, and the fixing buckle 50 is adapted to connect with the slag barrier wall 10 and to fix the sponge pad 40 to the slag barrier wall 10.

[0060] In some embodiments, the sponge pad 40 is disposed on the other side of the slag barrier wall 10 in the thickness direction, that is, the sponge pad 40 is disposed facing the area where the rolling stones fall. The sponge pad 40 can buffer the impact force of the rolling stones, thereby reducing the damage of the rolling stones to the slag barrier wall 10 and extending the service life of the slag barrier wall 10.

[0061] Of course, to prevent the sponge pad 40 from moving, this application sets a fixing buckle 50 to connect with the slag barrier wall 10, thereby fixing the sponge pad 40 to the slag barrier wall 10, improving the stability of the sponge pad 40 and the slag barrier wall 10, and thus improving the structural stability of the anti-rolling stone device 1.

[0062] According to some embodiments of the present invention, the fixing buckle 50 includes a first split part 51 and two second split parts 52. The first split part 51 extends in the length direction and is located on the side of the sponge pad 40 away from the slag barrier wall 10. The two second split parts 52 are respectively disposed at both ends of the first split part 51 and extend in the thickness direction. The two second split parts 52 are respectively connected to the slag barrier wall 10 by fasteners 53.

[0063] In some embodiments, the slag barrier wall 10 and the first split part 51 are respectively located on both sides of the sponge pad 40 in the thickness direction. Thus, the first split part 51 cooperates with the slag barrier wall 10 to restrict the position of the sponge pad 40 in the thickness direction. At the same time, the two second split parts 52 are respectively located on both sides of the sponge pad 40 in the length direction. Thus, after the two second split parts 52 are respectively connected to the slag barrier wall 10, the two second split parts 52 can restrict the position of the sponge pad 40 in the length direction. Thus, after the fixing buckle 50 is connected to the slag barrier wall 10, the sponge pad 40 can be stably fixed to the slag barrier wall 10.

[0064] It is worth mentioning that the free end of the second split part 52 is provided with a through hole in the length direction, and the slag retainer 10 is provided with a mating hole extending in the length direction and facing the through hole. The fastener 53 passes through the through hole and connects with the mating hole, thereby fixing the second split part 52 to the slag retainer 10.

[0065] According to some embodiments of the present invention, a stop bar 21 is also provided at one end of the fixing rod 20. The stop bar 21 extends in the height direction and is located on the side of the sponge pad 40 away from the slag barrier wall 10. The stop bar 21 is adapted to contact the sponge pad 40.

[0066] In some embodiments, one end of the fixing rod 20 extends in the thickness direction to the side of the sponge pad 40 away from the slag-blocking wall 10 and is provided with a stop rod 21. The stop rod 21 extends in the height direction. The fixing rod 20 is located at the bottom of the sponge pad 40 to support the sponge pad 40, thereby ensuring the relative position of the sponge pad 40 in the height direction. The stop rod 21 contacts the sponge pad 40. Thus, the stop rod 21 cooperates with the slag-blocking wall 10 to further fix the position of the sponge pad 40 in the thickness direction, thereby further ensuring the position of the sponge pad 40 and further ensuring the connection stability between the sponge pad 40 and the slag-blocking wall 10.

[0067] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0068] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A detachable anti-rockfall device for tunnel reverse slope construction, characterized in that, include: A slag retaining wall (10) is provided with a mating part extending in the thickness direction; A fixing rod (20) extends in the thickness direction of the slag barrier (10) and is adapted to connect with the slope, the slag barrier (10) being connected to the fixing rod (20) through the mating part; A support member (30) is provided, one end of which is detachably connected to the slope, and the other end of which is adapted to be connected to one side of the slag barrier (10) in the thickness direction.

2. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 1, characterized in that, The support member (30) includes a support rod (31) and a connecting plate (32). There are two connecting plates (32), which are rotatably disposed at both ends of the support rod (31). The two connecting plates (32) are detachably connected to the slope and the slag retaining wall (10).

3. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 2, characterized in that, The end of the support rod (31) is provided with a first universal joint (311), and the connecting plate (32) is provided with a second universal joint (321). The first universal joint (311) and the second universal joint (321) are rotatably connected.

4. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 3, characterized in that, The support rod (31) includes a sleeve (312) and a slide rod (313). A portion of the slide rod (313) is movably disposed within the sleeve (312). The sleeve (312) is provided with a first universal joint (311) at one end away from the slide rod (313), and the slide rod (313) is provided with a first universal joint (311) at one end away from the sleeve (312).

5. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 4, characterized in that, The support rod (31) also includes a locking sleeve (314), which is movably and rotatably connected to the sleeve (312). The locking sleeve (314) moves and rotates to fix the sleeve (312) and the slide rod (313) in the axial direction.

6. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 1, characterized in that, The mating part is constructed as a mating groove (11) at the bottom of the slag barrier (10), and the slag barrier (10) is connected to the fixing rod (20) through the mating groove (11).

7. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 6, characterized in that, The mating groove (11) penetrates the slag-blocking wall (10) in the thickness direction, and the slag-blocking wall (10) is slidably connected to the fixing rod (20) through the mating groove (11).

8. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 1, characterized in that, It also includes a sponge pad (40) and a fixing buckle (50), the sponge pad (40) being disposed on the other side of the slag barrier wall (10) in the thickness direction, and the fixing buckle (50) being adapted to connect with the slag barrier wall (10) and to fix the sponge pad (40) to the slag barrier wall (10).

9. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 8, characterized in that, The fixing buckle (50) includes a first split part (51) and two second split parts (52). The first split part (51) extends in the length direction and is located on the side of the sponge pad (40) away from the slag barrier wall (10). The two second split parts (52) are respectively disposed at both ends of the first split part (51) and extend in the thickness direction. The two second split parts (52) are respectively connected to the slag barrier wall (10) by fasteners (53).

10. The detachable anti-rockfall device for tunnel reverse slope construction according to claim 8, characterized in that, One end of the fixing rod (20) is also provided with a stop bar (21), which extends in the height direction and is located on the side of the sponge pad (40) away from the slag barrier wall (10). The stop bar (21) is adapted to contact the sponge pad (40).

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