Special flexible retaining wall for filling mining

Abstract

The utility model provides a filling mining special flexible retaining wall which comprises a top plate and multiple sets of flexible baffles, a clamping groove and a clamping plate are arranged between every two sets of flexible baffles, the clamping plate is located at the lower end of the upper set of flexible baffles, the clamping groove is located at the upper end of the lower set of flexible baffles, and multiple sets of linkage square holes transversely arranged in an array are formed in the clamping plate and the clamping groove in a penetrating mode. Two sets of movable rotating plates are arranged in each set of linkage square holes in the clamping plate, fork rods are movably arranged at the upper ends of the two sets of movable rotating plates, rake-shaped grooves are formed in the outer ends of the fork rods, the fork rods are arranged in the mode that a plurality of sets of short rods at the lower end are connected with a set of sliding rods at the upper end, each set of short rods is movably connected with the two sets of movable rotating plates, and the sliding rods are movably connected into a flexible baffle. A connecting groove is formed in the outer end of the sliding rod. The problems that in the design of the filling retaining wall, in the using process of the filling retaining wall, the installation bending angle of the filling retaining wall cannot be adjusted according to the bending degree of the face needing to be filled, and installation cannot be adjusted according to the specific height are solved.

Description

Technical Field

[0001] This utility model relates to the field of filling retaining wall technology, and more specifically, to a special flexible retaining wall for filling mining. Background Technology

[0002] Backfill retaining walls are structures used in backfill mining to separate the goaf and the backfill area. In practical use, they offer the following benefits: 1. Preventing backfill material leakage: Backfill retaining walls effectively prevent backfill material from leaking out of the goaf during the backfilling process, ensuring that the backfill material accumulates within a designated area and guaranteeing the backfilling effect; 2. Supporting the surrounding rock of the goaf: During the backfilling process, backfill retaining walls provide support to the surrounding rock of the goaf, reducing deformation and displacement of the surrounding rock and improving the stability of the goaf; 3. Controlling the shape of the backfill body: Through reasonable design and construction of backfill retaining walls, the shape and size of the backfill body can be controlled to meet the requirements of the mining design, improving mining efficiency and safety.

[0003] In the existing technology, during the use of filling retaining walls, the installation bending angle of the filling retaining wall cannot be adjusted according to the curvature of the filling surface, nor can the installation be adjusted according to the specific height; therefore, we have made improvements and proposed a special flexible retaining wall for filling mining. Summary of the Invention

[0004] The purpose of this utility model is to address the problems of current infill retaining wall designs, which cannot adjust the installation bending angle of the infill retaining wall according to the required curvature of the filling surface, and cannot adjust the installation according to the specific height.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0006] A special flexible retaining wall for filling mining is proposed to improve the above-mentioned problems.

[0007] The application is as follows:

[0008] A special flexible retaining wall for filling mining includes a top plate and multiple sets of flexible baffles. A slot and a plate are provided between every two sets of flexible baffles. The plate is located at the lower end of the upper set of flexible baffles, and the slot is located at the upper end of the lower set of flexible baffles. Multiple sets of horizontally arrayed linkage square holes are passed through the plate and slot. Each set of linkage square holes in the plate contains two sets of movable rotating plates. A fork is movably mounted on the upper end of each of the two sets of movable rotating plates. The outer end of the fork has a rake-shaped groove. The fork is configured such that multiple sets of short rods at the lower end connect to a set of sliding rods at the upper end. Each set of short rods is movably connected to two sets of movable rotating plates. The rod is movably connected within the flexible baffle. The outer end of the sliding rod has a connecting groove. Multiple sets of positioning tooth grooves are embedded at equal intervals on the surface of the sliding rod. The inner end of the multiple sets of positioning tooth grooves has a positioning gear. The outer end of the positioning gear has a square groove. The inner end of the positioning gear has an arc-shaped groove. The inner end of the arc-shaped groove has a positioning rod one. The square groove has a positioning rod two. Positioning rod one and positioning rod two are connected by a linkage rope. The inner end of each set of short rods has a slot. The inner end of the slot has a limiting rod. The lower end of the sliding rod has a sliding cylinder. The inner end of the sliding cylinder has a linkage spring and a round rod. The lower end of the round rod is fixed within the flexible baffle.

[0009] As a preferred technical solution of this application, the linkage square holes in the upper set of card plates are completely connected and correspond to the linkage square holes on the outside of the lower set of card slots. The lower end of the linkage square holes in the card plates is provided with an arc-shaped protrusion for each pair of movable rotating plates to move outward. Each pair of movable rotating plates moves on the lower end of a set of short rods. The slide rod moves up and down along the connecting groove. Multiple sets of positioning tooth grooves and positioning gears mesh with each other to drive the slide rod to move up and down along the connecting groove. The up and down movement of the slide rod drives multiple sets of short rods to move up and down.

[0010] As a preferred technical solution of this application, the positioning gear rotates along the square groove, the positioning shaft is fixed in the square groove, the positioning gear moves on the positioning shaft, the arc groove is embedded in the center of the positioning gear, and the outer end of the arc groove passes through the outer tooth surface of the positioning gear. Positioning rod one is fixed at the head end of the arc groove, positioning rod two is fixed in the square groove, the head end of the linkage rope is wrapped and fixed to the outer end of positioning rod one, and the linkage rope contacts the lower left end of positioning rod two and moves out of the flexible baffle along the lower right end.

[0011] As a preferred technical solution of this application, the slot extends through the outer surfaces of both ends of the short rod, the limiting rod is wrapped around the inner end of the slot, and the limiting rod is fixed to the lower side of the inner end of the rake-shaped groove.

[0012] As a preferred technical solution of this application, the slide cylinder passes through the lower end of the slide rod, and the slide cylinder and the round rod are slidably connected. The round rod is fixed in the center of the rake-shaped groove, and the upper and lower ends of the linkage spring are fixedly connected to the upper inner surface of the slide cylinder and the upper outer surface of the round rod, respectively.

[0013] As a preferred technical solution of this application, one end of the flexible baffle is provided with a reinforcing component, the outer end of the reinforcing component is provided with a connecting hole, the inner end of the connecting hole is provided with a connecting rod, one end of the connecting rod is provided with an annular groove, and a threaded rod and a threaded cylinder are provided between the connecting rods.

[0014] As a preferred technical solution of this application, two adjacent sets of connecting holes are connected by a connecting rod that passes through the hole and a threaded rod and a threaded cylinder.

[0015] As a preferred technical solution of this application, the distance between two adjacent sets of connecting holes is adjusted by the rotational distance between the threaded rod and the threaded cylinder.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] By setting the bending angle of the flexible baffle at each equal distance based on the rotation distance of the thread, the specific filling curvature can be adjusted according to different filling surfaces in the mining site.

[0019] The height of the baffles can be adjusted in a multi-layered and controllable manner, and each layer is equipped with corresponding reinforcement components and filling positioning feet, which improves the stability of the filling. Attached Figure Description

[0020] Figure 1 This application provides an overall structural schematic diagram of a special flexible retaining wall for filling mining.

[0021] Figure 2 A schematic diagram of the central side section structure of a special flexible retaining wall for filling mining provided in this application;

[0022] Figure 3 This application provides a schematic diagram of the cross-sectional structure of a linkage square hole in a special flexible retaining wall for filling mining.

[0023] Figure 4 This application provides a special flexible retaining wall for filling mining. Figure 2 A magnified structural diagram of A in the middle;

[0024] Figure 5 This application provides a special flexible retaining wall for filling mining. Figure 2 A magnified structural diagram of B in the diagram;

[0025] Figure 6 This application provides a special flexible retaining wall for filling mining. Figure 3 A magnified structural diagram of C;

[0026] Figure 7A front sectional view of the fork-shaped support for a special flexible retaining wall used in filling mining, provided in this application;

[0027] Figure 8 This application provides a connection structure diagram of a connecting rod for a special flexible retaining wall used in filling mining.

[0028] The image shows:

[0029] 1. Flexible baffle; 2. Reinforcing component; 3. Connecting hole; 4. Connecting rod; 5. Threaded cylinder; 6. Threaded rod; 7. Annular groove; 8. Connecting groove; 9. Slide rod; 10. Linkage spring; 11. Slide cylinder; 12. Fork rod; 13. Movable rotating plate; 14. Linkage square hole; 15. Positioning gear; 16. Positioning tooth groove; 17. Arc groove; 18. Linkage rope; 19. Positioning rod one; 20. Positioning rod two; 21. Groove; 22. Limiting rod. Detailed Implementation

[0030] 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.

[0031] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely illustrates some 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. It should be noted that, unless otherwise specified, the embodiments, features, and technical solutions in the embodiments of this utility model can be combined with each other.

[0032] It should be noted that similar labels 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.

[0033] like Figures 1-8As shown, this embodiment proposes a special flexible retaining wall for filling mining, including a top plate and multiple sets of flexible baffles 1. A slot and a plate are provided between every two sets of flexible baffles 1. The plate is located at the lower end of the upper set of flexible baffles 1, and the slot is located at the upper end of the lower set of flexible baffles 1. A reinforcing component 2 is provided at one end of each flexible baffle 1. A connecting hole 3 is provided at the outer end of the reinforcing component 2. A connecting rod 4 passes through the inner end of the connecting hole 3. An annular groove 7 is provided at one end of the connecting rod 4. A threaded rod 6 and a threaded cylinder 5 are provided between the connecting rods 4. Adjacent sets of connecting holes 3 are connected by the threaded connecting rod 4 and the threaded cylinder 5. The distance between the two sets of connecting holes 3 is adjusted by the rotation distance between the threaded rod 6 and the threaded cylinder 5. When it is necessary to fill a certain collapse in the mining area, the corresponding installation channel is first dug out at the collapse site. The bottom flexible baffle 1 is bent and inserted along the corresponding installation channel, and the connecting rod 4 is inserted through the connecting hole 3 in the corresponding reinforcement component 2. The two ends of the connecting rod 4 are rotated under the positioning of the annular groove 7 through the threaded cylinder 5 and the threaded rod 6 to adjust the bending degree of the flexible baffle 1. The bending degree of the flexible baffle 1 is adjusted by the number of rotations between the threaded rod 6 and the threaded cylinder 5 and the number of threaded connection turns.

[0034] As a preferred embodiment, based on the above method, further, such as Figures 2-7As shown, multiple sets of horizontally arrayed linkage square holes 14 penetrate the card plate and card slot. The lower end of each set of flexible baffles 1 is fixedly connected to the card plate. The card slot is embedded in the inner side of the upper end of each set of flexible baffles 1, and the card slot penetrates the outer surface of the front and rear ends of each set of flexible baffles 1. Both the card slot and the card plate end are connected to the linkage square holes 14, which can ensure that the linkage square holes 14 between the multi-layer stacked flexible baffles 1 are connected. Each set of linkage square holes 14 in the card plate is provided with two sets of movable rotating plates 13. The upper end of the two sets of movable rotating plates 13 is movably connected with a fork 12. Multiple sets of movable rotating plates 13 appear in pairs in the inner end of each set of card plates. The movable rotating plates 13 are respectively movably mounted on the lower side of a set of short rods. Multiple sets of short rods are arranged at equal intervals at the lower end of the fork rod 12. The outer end of the fork rod 12 is provided with a rake-shaped groove. The fork rod 12 is configured to connect multiple sets of short rods at the lower end to a set of sliding rods 9 at the upper end. Each set of short rods is movably connected to two sets of movable rotating plates 13. The sliding rod 9 is movably connected in the flexible baffle 1. The outer end of the sliding rod 9 is provided with a connecting groove 8. Multiple sets of positioning tooth grooves 16 are equally spaced embedded on the surface of the sliding rod 9. The inner end of the multiple sets of positioning tooth grooves 16 is provided with a positioning gear 15. The outer end of the positioning gear 15 is provided with a square groove. The fork rod 12 slides up and down along the rake-shaped groove. The upper end of the fork rod 12 is fixed to the sliding rod 9. The sliding rod 9 moves up and down along the connecting groove 8, which is embedded in the lower side of the slot end of each set of flexible baffles 1. Multiple sets of positioning tooth grooves 16 are embedded on the outer side of the sliding rod 9. The positioning tooth grooves 16 mesh with the positioning gear 15 in the outer square groove. The inner end of the positioning gear 15 is provided with an arc-shaped groove 17, and the inner end of the arc-shaped groove 17 is provided with a positioning rod 19. A positioning rod 20 is provided in the square groove. The moving space of the linkage rope 18 within the positioning gear 15 is set in the arc-shaped groove 17, and the positioning rod 19 is fixed to the head end of the arc-shaped groove 17. The positioning rod 19 and the positioning rod 20 are connected by the linkage rope 18. The inner end of each set of short rods is provided with a slot. 21. A limiting rod 22 is provided at the inner end of the slot 21. A sliding cylinder 11 is provided at the lower end of the sliding rod 9. A linkage spring 10 and a round rod are provided at the inner end of the sliding cylinder 11. The lower end of the round rod is fixed inside the flexible baffle 1. The rotation of the positioning gear 15 is pulled by the linkage rope 18 connected inside the positioning gear 15. The head end of the linkage rope 18 is fixed on the positioning rod 19. The linkage rope 18 wraps around the lower left end of the positioning rod 20 until it moves laterally to the right to the outer end of each set of flexible baffles 1. While the linkage rope 18 is stretched outward, the linkage spring 10 inside the sliding cylinder 11 at the lower end of the sliding rod 9 is pulled up, and the distance between the sliding cylinder 11 and the round rod is adjusted to the maximum.

[0035] The linkage square holes 14 in the upper set of clamping plates completely correspond to the linkage square holes 14 on the outer side of the lower set of clamping slots. The lower end of the linkage square holes 14 in the clamping plates is provided with an arc-shaped protrusion for each pair of movable rotating plates 13 to move outward. Each pair of movable rotating plates 13 moves at the lower end of a set of short rods. The slide rod 9 moves up and down along the connecting groove 8. Multiple sets of positioning tooth grooves 16 mesh with the positioning gear 15 to drive the slide rod 9 to move up and down along the connecting groove 8. The up and down movement of the slide rod 9 drives multiple sets of short rods to move up and down. When the positioning gear 15 rotates clockwise, the linkage rope 18 is pulled outward. When the positioning gear 15 rotates counterclockwise, the linkage rope 18 moves inward. At this time, the inward movement of the linkage rope 18 is contracted by the linkage spring 10 located in the slide cylinder 11 below the slide rod 9. The distance between the slide cylinder 11 and the round rod gradually decreases.

[0036] The positioning gear 15 rotates within the square groove, and a positioning shaft is fixed within the square groove. The positioning gear 15 moves on the positioning shaft. The arc-shaped groove 17 is embedded in the center of the positioning gear 15, and the outer end of the arc-shaped groove 17 passes through the outer tooth surface of the positioning gear 15. Positioning rod 19 is fixed at the head end of the arc-shaped groove 17, and positioning rod 20 is fixed within the square groove. The head end of the linkage rope 18 is wrapped and fixed to the outer end of positioning rod 19. The linkage rope 18 contacts the lower left end of positioning rod 20 and moves out of the flexible baffle 1 along the lower right end.

[0037] The slot 21 passes through the outer surface of both ends of the short rod. The limiting rod 22 is wrapped around the inner end of the slot 21 and fixed to the lower side of the inner end of the rake-shaped groove. The inner end of each group of short rods is provided with a slot 21. The slot 21 passes through both sides of each group of short rods and is wrapped around the outer end of the limiting rod 22. The limiting rod 22 is fixed to the inner end of the rake-shaped groove. The function of the limiting rod 22 is to limit the up and down movement of the slot 21 and each group of short rods.

[0038] The slide cylinder 11 passes through the lower end of the slide rod 9, and the slide cylinder 11 is slidably connected to the round rod. The round rod is fixed in the center of the rake groove. The upper and lower ends of the linkage spring 10 are fixedly connected to the upper inner surface of the slide cylinder 11 and the upper outer surface of the round rod, respectively.

[0039] After installing the bottom flexible baffle 1, pull the linkage rope 18 at the clamping end of the bottom flexible baffle 1 outward again, so that the positioning gear 15 connected to the inner side rotates clockwise, driving the slide rod 9 connected to the positioning tooth groove 16 to move upward. The upward movement of the slide rod 9 drives the fork rod 12 fixed at the lower end to move upward. At the same time, the linkage spring 10 inside the slide rod 9 expands, and the distance between the slide cylinder 11 and the round rod is pulled to the maximum. While the fork rod 12 moves upward, it drives the two sets of movable rotating plates 13 on the lower side of each set of short rods at the lower end of the fork rod 12 to rotate. The lower ends of the two sets of movable rotating plates 13 retract and close inward along the linkage square hole 14. At this time, the area around the bottom flexible baffle 1 is filled. After filling, the linkage rope 18 is released. At this time, the two sets of movable rotating plates 13 located in each linkage square hole 14 are inserted outward and inserted into the corresponding filling surface. The filling surface is compacted again. At this time, the flexible baffle 1 can be stably positioned.

[0040] Then, the second, third, ... Nth layer of flexible baffle 1 is placed sequentially through the slot at the upper end of the flexible baffle 1. When installing each layer of flexible baffle 1, the curvature is positioned, and both sides of the flexible baffle 1 are positioned and compacted during filling. The top plate is fixed on the upper side of the top layer to position the whole. It can adapt to the filling surface of most mining sites, ensuring the curvature of the filling while also being able to determine different filling heights automatically.

[0041] The process of fixing the flexible retaining wall to the surrounding rock (i.e., the mining backfill face) is achieved through layered assembly of the flexible retaining plates 1, mechanical linkage anchoring, and interlocking of the backfill body. The fixing and installation process is as follows:

[0042] The bottom flexible baffle 1 is installed and initially positioned. A suitable installation channel is excavated in the collapse area, and the bottom flexible baffle 1 is bent and placed in the channel. The connecting rod 4 is inserted through the connecting hole 3 of the reinforcement component 2. The threaded rod 6 and threaded cylinder 5 between adjacent baffles are rotated to adjust the curvature of the baffle (the number of thread rotations controls the curvature) so that it fits the contour of the surrounding rock.

[0043] The movable rotating plate 13 is pre-processed at the beginning. When the bottom baffle is installed, the linkage rope 18 is in an outward taut state. The tension of the linkage rope 18 causes the positioning gear 15 to rotate clockwise, which drives the slide rod 9 to move upward. The slide rod 9 pulls multiple sets of short rods upward through the fork rod 12, forcing the two movable rotating plates 13 in each set of linkage square holes 14 to close inward and retract (at this time, the rotating plate is completely retracted into the baffle). At this time, there is no protruding structure on the outside of the baffle, which makes it easy to put into the installation position.

[0044] During the initial filling and plate anchoring: the back side of the bottom baffle (near the surrounding rock surface) is initially filled (such as with tailings or cementing material).

[0045] When the linkage rope 18 is released, the linkage spring 10 at the lower end of the slide rod 9 releases its contraction force, pushing the slide rod 9 downward.

[0046] The fork 12 drives the short rod to press down, causing each pair of movable rotating plates 13 to rotate outward and open with the limit rod 22 as the fulcrum, forcefully inserting into the unconsolidated filling material.

[0047] The filling material is manually compacted to form a filling fixation and mechanical locking between the rotating plate and the filling material, thus anchoring the baffle to the surface of the surrounding rock.

[0048] When installing multiple layers of baffles on the top of the bottom flexible baffle 1: insert the slot of the upper baffle into the slot of the lower baffle to ensure that the linkage square hole 14 of the two are fully connected.

[0049] The interlocking structure of the slots and plates ensures that the multi-layer baffles maintain overall linkage under filling pressure.

[0050] After the multi-layer flexible baffle 1 is fully installed, the top of the multi-layer flexible baffle 1 needs to be sealed and reinforced. The top plate is installed on the top of the uppermost baffle and fixed by connecting rods 4, etc.

[0051] The front of the retaining wall (mining side) is filled and compacted layer by layer to form an integral pressure-bearing structure with the retaining wall.

[0052] The flexible baffle 1 is initially fixed to the surrounding rock by mechanical means using expansion bolts, and then fixed a second time by filling with a solidifiable material (such as mixed cement, quick-setting colloid, etc.).

[0053] In this application, the focus is only on improving the connection between the flexible baffles 1. After the flexible baffles 1 are assembled, the connection between them and the surrounding rock is achieved by filling or other methods in the prior art. In this application, as long as the connection and fixation between the flexible baffles 1 and the surrounding rock can be achieved, no special limitations are imposed.

[0054] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A special flexible retaining wall for filling mining, comprising a roof and a plurality of sets of flexible retaining panels (1), characterized in that, Between each pair of flexible baffles (1), there is a slot and a plate. The plate is located at the lower end of the upper pair of flexible baffles (1), and the slot is located at the upper end of the lower pair of flexible baffles (1). Multiple sets of horizontally arranged linkage square holes (14) are passed through the plate and the slot. Each set of linkage square holes (14) in the plate contains two sets of movable rotating plates (13). Forks (12) are movably attached to the upper ends of the two sets of movable rotating plates (13). The outer ends of the forks (12) are provided with rake-shaped grooves. The forks (12) are configured to connect multiple sets of short rods at the lower end to a set of sliding rods (9) at the upper end. Each set of short rods is movably connected to the two sets of movable rotating plates (13). The sliding rods (9) are movably connected within the flexible baffles (1). The outer ends of the sliding rods (9) are provided with connecting grooves (8). The surface of the slide rod (9) is embedded with multiple sets of positioning tooth grooves (16) at equal intervals. The inner end of the multiple sets of positioning tooth grooves (16) is provided with a positioning gear (15). The outer end of the positioning gear (15) is provided with a square groove. The inner end of the positioning gear (15) is provided with an arc groove (17). The inner end of the arc groove (17) is provided with a positioning rod one (19). The square groove is provided with a positioning rod two (20). The positioning rod one (19) and the positioning rod two (20) are connected by a linkage rope (18). The inner end of each set of short rods is provided with a slot (21). The inner end of the slot (21) is provided with a limiting rod (22). The lower end of the slide rod (9) is provided with a slide cylinder (11). The inner end of the slide cylinder (11) is provided with a linkage spring (10) and a round rod. The lower end of the round rod is fixed in the flexible baffle (1).

2. A fill mining special flexible retaining wall according to claim 1, characterised in that, The linkage square hole (14) in the upper set of card plates completely corresponds to the linkage square hole (14) on the outside of the lower set of card slots. The lower end of the linkage square hole (14) in the card plate is provided with an arc-shaped protrusion for each two sets of movable rotating plates (13) to move outward. Each two sets of movable rotating plates (13) move at the lower end of a set of short rods. The slide rod (9) moves up and down along the connecting groove (8). Multiple sets of positioning tooth grooves (16) mesh with positioning gears (15) to drive the slide rod (9) to move up and down along the connecting groove (8). The up and down movement of the slide rod (9) drives multiple sets of short rods to move up and down.

3. A fill mining special flexible retaining wall according to claim 2, characterised in that, The positioning gear (15) rotates along the square groove, and a positioning shaft is fixed in the square groove. The positioning gear (15) moves on the positioning shaft. The arc groove (17) is embedded in the center of the positioning gear (15), and the outer end of the arc groove (17) passes through the outer tooth surface of the positioning gear (15). The first positioning rod (19) is fixed at the head end of the arc groove (17). The second positioning rod (20) is fixed in the square groove. The head end of the linkage rope (18) is wrapped and fixed to the outer end of the first positioning rod (19). The linkage rope (18) contacts the lower left end of the second positioning rod (20) and moves out of the flexible baffle (1) along the lower right end.

4. A fill mining special flexible retaining wall according to claim 3, characterised in that, The slot (21) extends through the outer surfaces of the front and rear ends of the short rod, and the limiting rod (22) is wrapped around the inner end of the slot (21). The limiting rod (22) is fixed to the lower side of the inner end of the rake-shaped groove.

5. A fill mining special flexible retaining wall according to claim 4, characterised in that, The slide cylinder (11) passes through the lower end of the slide rod (9), and the slide cylinder (11) is slidably connected to the round rod. The round rod is fixed in the center of the rake groove. The upper and lower ends of the linkage spring (10) are respectively fixedly connected to the upper inner surface of the slide cylinder (11) and the upper outer surface of the round rod.

6. A fill mining special flexible retaining wall according to claim 1, wherein, One end of the flexible baffle (1) is provided with a reinforcing component (2), the outer end of the reinforcing component (2) is provided with a connecting hole (3), the inner end of the connecting hole (3) is provided with a connecting rod (4), one end of the connecting rod (4) is provided with an annular groove (7), and a threaded rod (6) and a threaded cylinder (5) are provided between the connecting rods (4).

7. A fill mining special flexible retaining wall according to claim 6, characterised in that, The two adjacent sets of connecting holes (3) are connected by a threaded rod (4) through which the connecting rod (6) and the threaded cylinder (5) are connected.

8. A fill mining special flexible retaining wall according to claim 7, characterised in that, The distance between the two adjacent sets of connecting holes (3) is adjusted by the rotational distance between the threaded rod (6) and the threaded cylinder (5).

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