A downward-layered tailings cemented backfilling collaborative support device

Abstract

This invention belongs to the field of slope reinforcement and anchoring grouting technology, and relates to a downward layered tailings cemented filling and coordinated support device. It includes a slope platform support plate, with a steep wall support side plate at one end. Multiple grouting guide holes are opened on the inner sides of both the slope platform support plate and the steep wall support side plate. Multiple anchoring connecting rods are fixedly connected to the ends of both the slope platform support plate and the steep wall support side plate. The grouting guide holes are interconnected with the corresponding anchoring connecting rods and a through-type grouting cylinder. This invention delivers cement into the grouting guide holes, filling them completely. The cement then firmly binds the through-type grouting cylinder and the anchoring connecting rods to the surrounding soil and rock, forming an integral load-bearing structure. This fixes the slope platform support plate and the steep wall support side plate to the slope platform and steep wall, preventing slope platform and steep wall collapse and making the grouting of tailings cement by the transport device safer.

Description

Technical Field

[0001] This invention belongs to the field of slope reinforcement and anchoring grouting technology, and relates to a downward layered tailings cemented backfilling collaborative support device. Background Technology

[0002] Downward-layered tailings cemented backfilling is a safe and efficient mining method for fractured and unstable ore bodies, where mining proceeds layer by layer from the top down. This method first mines the uppermost layer, and immediately after the empty space is removed, a high-strength cemented backfill of tailings and cement is used to form a stable artificial roof. Once the backfill has hardened, subsequent layers are mined and backfilled under the protection of this artificial roof, repeating this cycle until the entire ore body is mined. Its core principle lies in actively controlling ground pressure and replacing the original rock strata as the roof through high-strength backfill, thereby ensuring mining safety, significantly reducing ore dilution and loss, and achieving underground resource utilization of tailings.

[0003] In engineering projects such as mine slopes, road slopes, or building foundation pits, the stability of slope platforms and steep walls is crucial. Under dynamic loads such as tailings cementing, backfilling, and transportation, slope platforms are prone to uneven settlement, and steep walls are prone to local collapse, threatening the safety of operations below.

[0004] Therefore, there is an urgent need for a slope reinforcement device that can combine anchoring structures with grouting reinforcement to form an integral load-bearing structure. Summary of the Invention

[0005] The technical problem to be solved by this invention is that in engineering projects such as mine slopes, road slopes or building foundation pits, the stability of slope platforms and steep walls is crucial. Under the action of dynamic loads such as tailings cementing backfilling and transportation, slope platforms are prone to uneven settlement, and steep walls are prone to local collapse, threatening the safety of operations below.

[0006] The present invention discloses a downward layered tailings cemented backfilling collaborative support device, comprising a slope platform support plate, one end of which is provided with a steep wall support side plate. Multiple grouting guide holes are provided on the inner sides of both the slope platform support plate and the steep wall support side plate. Multiple anchoring connecting rods are fixedly connected to the ends of both the slope platform support plate and the steep wall support side plate. A through-type grouting cylinder is fixedly connected to one end of each anchoring connecting rod away from the corresponding slope platform support plate and steep wall support side plate. The grouting guide holes communicate with the corresponding anchoring connecting rods and the through-type grouting cylinders. The slope platform support plate and the steep wall support side plate are connected by a limiting component.

[0007] An end reinforcement plate is fixedly connected to the inner side of the end of the through-type grouting cylinder away from the anchoring rod. Multiple pull-out reinforcement rods are fixedly connected to the end of the end reinforcement plate. A grout penetration hole is opened in the middle of the end reinforcement plate.

[0008] The limiting assembly includes corner hinge rods. Multiple corner hinge rods are fixedly connected to one end of the steep wall support side plate near the slope platform support plate. Multiple hinge support seats are fixedly connected to one end of the slope platform support plate near the steep wall support side plate. Hinged pivots are symmetrically fixedly connected to both ends of the corner hinge rods. Hinged pivot limit grooves are symmetrically opened at both ends of the hinge support seats. The hinged pivots are located inside the corresponding pivot limit grooves and are rotatably connected to the corresponding pivot limit grooves.

[0009] A fixed connecting rod is fixedly connected to the inner side of multiple corner hinge rods. Angle locking rods are symmetrically fixedly connected to both ends of the fixed connecting rods. The outer side of the angle locking rods is provided with equidistant serrated grooves. A support limiting seat is symmetrically fixedly connected to one end of the slope platform support plate near the steep wall support side plate and at both ends of multiple hinge support seats. The support limiting seat is rotatably connected to the corresponding hinge shaft. An installation groove is provided on the inner side of the support limiting seat. A limiting slide cylinder is slidably connected to the inner side of the installation groove. An equidistant serrated block is provided on the inner side of the limiting slide cylinder, which is adapted to the equidistant serrated groove. The equidistant serrated block is slidably engaged with the equidistant serrated groove. Multiple limiting sliders are fixedly connected to the outer side of the limiting slide cylinder. Multiple slider limiting grooves are provided on the inner side of the support limiting seat. The multiple slider limiting grooves are all used to communicate with each other for the installation groove. The limiting slider is slidably connected to the slider limiting groove.

[0010] The angle locking rod has a threaded hole in the middle, and a bolt is threaded to the inside of the threaded hole. A limit plate is fixedly connected to the end of the bolt.

[0011] A feeding hopper is provided at the upper end of the slope platform support plate near the steep wall support side plate, and a discharge pipe is fixedly connected to the lower end of the feeding hopper. A support assembly is provided between the feeding hopper and the slope platform support plate.

[0012] The lower end of the discharge pipe is fixedly connected to the feeding pipe.

[0013] The support assembly includes a first support plate, and the lower end of the feed bag is symmetrically and fixedly connected with the first support plate and the second support plate.

[0014] The first support plate and the second support plate are fixedly connected to a support connecting plate at the ends away from the feed hopper. The two ends of the support connecting plate are symmetrically fixedly connected to a first sliding plate and a second sliding plate. A guide fastening groove is opened on the inner side of the upper end of the slope platform support plate. The first sliding plate, the second sliding plate, and the support connecting plate are all located inside the guide fastening groove and are slidably connected to the guide fastening groove. The second sliding plate and the first sliding plate are both threadedly connected to the slope platform support plate with fastening screws.

[0015] Multiple crisscrossing reinforcing ribs are fixedly connected between the first support plate and the second support plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: by conveying cement into the grouting guide hole, the cement fills the hole, and the through-type grouting cylinder and anchor connecting rod are firmly fixed to the surrounding rock and soil to form an integral load-bearing structure. This fixes the slope platform support plate and the steep wall support side plate to the slope platform and steep wall, preventing the slope platform and steep wall from collapsing, and making the transportation of tailings cemented backfill safer. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the through-type grouting cylinder of the present invention; Figure 3 This is a schematic diagram of the structure of the limiting component of the present invention; Figure 4 This is a schematic diagram of the feeding tube of the present invention; Figure 5 This is a schematic diagram of the structure of the first support plate and the second support plate of the present invention; Figure 6 This is a schematic diagram of the structure of the first and second sliding plates of the present invention.

[0018] In the diagram: 1. Slope platform support plate; 2. Steep wall support side plate; 3. Grouting guide hole; 4. Anchor connecting rod; 5. Through-type grouting cylinder; 6. End reinforcement plate; 7. Pull-out reinforcement rod; 8. Grout penetration hole; 9. Corner hinge rod; 10. Hinge shaft; 11. Hinge support seat; 12. Shaft limiting groove; 13. Fixed connecting rod; 14. Angle locking rod; 15. Equal row sawtooth groove; 16. Limiting slide; 17. Limiting 18. Slider; 19. Equal row of serrated blocks; 20. Slider limiting groove; 21. Bolt; 22. Feed bag; 23. Discharge pipe; 24. Feeding pipe; 25. First support plate; 26. Second support plate; 27. First slide plate; 28. Second slide plate; 29. ​​Guide fastening groove; 30. Fastening screw; 31. Reinforcing rib; 32. Threaded hole; 33. Support limiting seat; 34. Mounting groove; 35. Limiting plate; 36. Support connecting plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0022] 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.

[0023] Example 1 like Figure 1 - Figure 2 As shown, a downward layered tailings cemented backfilling collaborative support device includes a slope platform support plate 1. One end of the slope platform support plate 1 is provided with a steep wall support side plate 2. Multiple grouting guide holes 3 are opened on the inner side of both the slope platform support plate 1 and the steep wall support side plate 2. Multiple anchoring connecting rods 4 are fixedly connected to the ends of both the slope platform support plate 1 and the steep wall support side plate 2. One end of each anchoring connecting rod 4 away from the corresponding slope platform support plate 1 and steep wall support side plate 2 is fixedly connected to a through grouting cylinder 5. The grouting guide holes 3 are interconnected with the corresponding anchoring connecting rods 4 and the through grouting cylinder 5. The slope platform support plate 1 and the steep wall support side plate 2 are connected by a limiting component.

[0024] An end reinforcement plate 6 is fixedly connected to the inner side of the end of the through grouting cylinder 5 away from the anchoring rod 4. Multiple pull-out reinforcement rods 7 are fixedly connected to the end of the end reinforcement plate 6. A grout penetration hole 8 is opened in the middle of the end reinforcement plate 6.

[0025] During operation, multiple holes are drilled in the slope platform and steep wall using a drilling machine. These holes are used to place the through-type grouting cylinder 5 and the anchoring connecting rod 4. Then, the slope platform support plate 1 is placed at the upper end of the slope, and the anchoring connecting rod 4 and the through-type grouting cylinder 5, which are fixedly connected to the end of the slope platform support plate 1, are placed in the holes drilled in the slope platform. Similarly, the anchoring connecting rod 4 and the through-type grouting cylinder 5, which are fixedly connected to the end of the steep wall support side plate 2, are placed in the holes drilled in the steep wall. Subsequently, cement is supplied to the inside of the grouting guide hole 3. The hole is filled with cement. Since the steep wall support side plate 2 is on the steep wall, the inside of the grouting guide hole 3 can be sealed with a wooden or rubber plug after the hole is filled with cement. Due to the porous structure of the grout penetration hole 8 and the through-type grouting cylinder 5, after the cement is filled and left to stand for a period of time, when the cement solidifies, the cement will firmly bind the through-type grouting cylinder 5 and the anchoring connecting rod 4 to the surrounding rock and soil, forming an integral load-bearing structure. For added strength, multiple pull-out reinforcing rods 7 are fixedly connected to the end face, thereby increasing the contact area with the cement; By supplying cement into the grouting guide hole 3, the cement fills the hole and secures the through-type grouting cylinder 5 and the anchoring connecting rod 4 to the surrounding rock and soil, forming an integral load-bearing structure. This, in turn, fixes the slope platform support plate 1 and the steep wall support side plate 2 to the slope platform and steep wall, preventing the slope platform and steep wall from collapsing and making the transportation of tailings cemented backfill safer.

[0026] Example 2 like Figure 1 - Figure 3 As shown, the limiting component includes corner hinge rods 9. Multiple corner hinge rods 9 are fixedly connected to one end of the steep wall support side plate 2 near the slope platform support plate 1. Multiple hinge support seats 11 are fixedly connected to one end of the slope platform support plate 1 near the steep wall support side plate 2. Hinged pivot shafts 10 are symmetrically fixedly connected to both ends of the corner hinge rods 9. Pivot shaft limiting grooves 12 are symmetrically opened at both ends of the hinge support seats 11. The hinge pivot shafts 10 are located inside the corresponding pivot shaft limiting grooves 12 and are rotatably connected to the corresponding pivot shaft limiting grooves 12.

[0027] A fixed connecting rod 13 is fixedly connected to the inner side of each of the corner hinge rods 9. Angle locking rods 14 are symmetrically fixedly connected to both ends of the fixed connecting rods 13. The outer side of the angle locking rods 14 is provided with equally spaced serrated grooves 15. A support limiting seat 32 is symmetrically fixedly connected to one end of the slope platform support plate 1 near the steep wall support side plate 2 and at both ends of the multiple hinge support seats 11. The support limiting seat 32 is rotatably connected to the corresponding hinge shaft 10. The inner side of the support limiting seat 32 is provided with an installation groove 33. The inner side of the mounting groove 33 is slidably connected to a limiting slide cylinder 16. The inner side of the limiting slide cylinder 16 is provided with an equal-row serrated block 18 that is adapted to the equal-row serrated groove 15. The equal-row serrated block 18 is slidably engaged with the equal-row serrated groove 15. The outer side of the limiting slide cylinder 16 is fixedly connected to a plurality of limiting sliders 17. The inner side of the supporting limiting seat 32 is provided with a plurality of slider limiting grooves 19. The plurality of slider limiting grooves 19 are all used to communicate with each other in the mounting groove 33. The limiting sliders 17 are slidably connected with the slider limiting grooves 19.

[0028] The angle locking rod 14 has a threaded hole 31 in the middle, and a bolt 20 is threadedly connected to the inner side of the threaded hole 31. The end of the bolt 20 is fixedly connected to a limit plate 34.

[0029] During operation, the slope platform support plate 1 and the steep wall support side plate 2 are connected as a whole by the limiting component, thereby reinforcing the corners of the slope platform and the steep wall. During installation, the angle between the slope platform support plate 1 and the steep wall support side plate 2 can be adjusted according to the slope of the slope platform and the steep wall slope. Specifically, after the slope platform support plate 1 is installed, the steep wall support side plate 2 is attached to the steep wall. Then, the limiting slide cylinder 16 is placed inside the installation groove 33. The limiting slide cylinder 16 is prevented from rotating by the limiting slide block 17 and the slide block limiting groove 19. The fixed connecting rod 13 is fixed by the interlocking of the equidistant sawtooth block 18 and the equidistant sawtooth groove 15. Then, cement is filled into the gap between the steep wall support side plate 2 and the steep wall to fix the steep wall support side plate 2 on the steep wall. To prevent the limiting slide cylinder 16 from sliding out of the inner side of the support limiting seat 32 without human operation, the bolt 20 can be rotated and placed inside the threaded hole 31. The bolt 20 is connected to the threaded hole 31 by thread, thereby fixing the position of the limiting plate 34. The limiting plate 34 then restricts the position of the limiting slide cylinder 16, preventing the limiting slide cylinder 16 from sliding out of the inner side of the mounting groove 33. By setting a limiting component between the slope platform support plate 1 and the steep wall support side plate 2, the corners of the slope platform and the steep wall are reinforced, and the device is not limited to the use of a single slope platform and steep wall slope, thereby increasing the applicability of the device.

[0030] Example 3 like Figure 1 - Figure 6 As shown, a feeding hopper 21 is provided at the upper end of the slope platform support plate 1 near the steep wall support side plate 2, and a discharge pipe 22 is fixedly connected to the lower end of the feeding hopper 21. A support assembly is provided between the feeding hopper 21 and the slope platform support plate 1.

[0031] The lower end of the pouring pipe 22 is fixedly connected to the feeding pipe 23.

[0032] The support assembly includes a first support plate 24, and the lower end of the feed bag 21 is symmetrically and fixedly connected with the first support plate 24 and the second support plate 25.

[0033] A support connecting plate 35 is fixedly connected to the end of the first support plate 24 and the second support plate 25 away from the feed hopper 21. A first sliding plate 26 and a second sliding plate 27 are symmetrically fixedly connected to both ends of the support connecting plate 35. A guide fastening groove 28 is provided on the inner side of the upper end of the slope platform support plate 1. The first sliding plate 26, the second sliding plate 27, and the support connecting plate 35 are all located inside the guide fastening groove 28 and are slidably connected to the guide fastening groove 28. The second sliding plate 27 and the first sliding plate 26 are both threadedly connected to the slope platform support plate 1 with fastening screws 29.

[0034] A plurality of intersecting reinforcing ribs 30 are fixedly connected between the first support plate 24 and the second support plate 25.

[0035] During operation, when the transport device transports the tailings adhesive to the end of the slope platform support plate 1, it delivers the tailings adhesive to the inside of the feed hopper 21, and then the tailings adhesive is delivered to the bottom of the pit through the discharge pipe 22 and the feeding pipe 23. When installing the feed bag 21, place the second support plate 25, the first slide plate 26, and the second slide plate 27 inside the guide fastening groove 28. After the second support plate 25 is installed, connect it to the slope platform support plate 1 with the fastening screws 29 to achieve splicing installation, and strengthen the bearing capacity with multiple reinforcing ribs 30. The feed hopper 21 keeps the transport vehicle away from the angle between the slope platform and the steep slope, thus preventing the transport vehicle from entering the dangerous area.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A downwardly layered tailings cemented backfilling collaborative support device, characterized in that: The system includes a slope platform support plate (1), one end of which is provided with a steep wall support side plate (2). Multiple grouting guide holes (3) are opened on the inner side of both the slope platform support plate (1) and the steep wall support side plate (2). Multiple anchoring connecting rods (4) are fixedly connected to the ends of both the slope platform support plate (1) and the steep wall support side plate (2). A through-type grouting cylinder (5) is fixedly connected to the end of each of the multiple anchoring connecting rods (4) away from the corresponding slope platform support plate (1) and steep wall support side plate (2). The grouting guide holes (3) are interconnected with the corresponding anchoring connecting rods (4) and the through-type grouting cylinder (5). The slope platform support plate (1) and the steep wall support side plate (2) are connected by a limiting component.

2. The downward layered tailings cemented backfilling collaborative support device according to claim 1, characterized in that: The inner side of the through-type grouting cylinder (5) away from the anchoring connecting rod (4) is fixedly connected to an end reinforcement plate (6), and the end of the end reinforcement plate (6) is fixedly connected to a plurality of pull-out reinforcement rods (7). A grout penetration hole (8) is opened in the middle of the end reinforcement plate (6).

3. The downward layered tailings cemented backfilling collaborative support device according to claim 2, characterized in that: The limiting assembly includes corner hinge rods (9). Multiple corner hinge rods (9) are fixedly connected to one end of the steep wall support side plate (2) near the slope platform support plate (1). Multiple hinge support seats (11) are fixedly connected to one end of the slope platform support plate (1) near the steep wall support side plate (2). Hinged pivots (10) are symmetrically fixedly connected to both ends of the corner hinge rods (9). Pivot limiting grooves (12) are symmetrically opened at both ends of the hinge support seats (11). The hinge pivots (10) are located inside the corresponding pivot limiting grooves (12) and are rotatably connected to the corresponding pivot limiting grooves (12).

4. The downward layered tailings cemented backfilling collaborative support device according to claim 3, characterized in that: A fixed connecting rod (13) is fixedly connected to the inner side of a plurality of corner hinge rods (9). Angle locking rods (14) are symmetrically fixedly connected to both ends of the fixed connecting rods (13). Equally spaced sawtooth grooves (15) are opened on the outer side of the angle locking rods (14). A support limiting seat (32) is symmetrically fixedly connected to one end of the slope platform support plate (1) near the steep wall support side plate (2) and at both ends of a plurality of hinge support seats (11). The support limiting seat (32) is rotatably connected to the corresponding hinge shaft (10). An installation groove (33) is opened on the inner side of the support limiting seat (32). The inner side of the mounting groove (33) is slidably connected to a limiting slide cylinder (16). The inner side of the limiting slide cylinder (16) is provided with an equal-row sawtooth block (18) that is adapted to the equal-row sawtooth groove (15). The equal-row sawtooth block (18) is slidably engaged with the equal-row sawtooth groove (15). The outer side of the limiting slide cylinder (16) is fixedly connected with multiple limiting sliders (17). The inner side of the supporting limiting seat (32) is provided with multiple slider limiting grooves (19). The multiple slider limiting grooves (19) are all used to communicate with each other in the mounting groove (33). The limiting slider (17) is slidably connected with the slider limiting groove (19).

5. The downward layered tailings cemented backfilling collaborative support device according to claim 4, characterized in that: The angle locking rod (14) has a threaded hole (31) in the middle, and a bolt (20) is threaded to the inside of the threaded hole (31). A limit plate (34) is fixedly connected to the end of the bolt (20).

6. The downward layered tailings cemented backfilling collaborative support device according to claim 1, characterized in that: The upper end of the slope platform support plate (1) near the steep wall support side plate (2) is provided with a feeding hopper (21), and the lower end of the feeding hopper (21) is fixedly connected with a pouring pipe (22). A support component is provided between the feeding hopper (21) and the slope platform support plate (1).

7. The downward layered tailings cemented backfilling collaborative support device according to claim 6, characterized in that: The lower end of the pouring pipe (22) is fixedly connected to the feeding pipe (23).

8. The downward layered tailings cemented backfilling collaborative support device according to claim 6, characterized in that: The support assembly includes a first support plate (24), and the lower end of the feed bag (21) is symmetrically and fixedly connected with the first support plate (24) and the second support plate (25).

9. A downwardly layered tailings cemented backfilling collaborative support device according to claim 8, characterized in that: The first support plate (24) and the second support plate (25) are fixedly connected to a support connecting plate (35) at the end away from the feed hopper (21). The two ends of the support connecting plate (35) are symmetrically fixedly connected to a first sliding plate (26) and a second sliding plate (27). A guide fastening groove (28) is provided on the inner side of the upper end of the slope platform support plate (1). The first sliding plate (26), the second sliding plate (27), and the support connecting plate (35) are all located inside the guide fastening groove (28) and are slidably connected to the guide fastening groove (28). The second sliding plate (27) and the first sliding plate (26) are both threadedly connected to the slope platform support plate (1) with fastening screws (29).

10. A downwardly layered tailings cemented backfilling collaborative support device according to claim 9, characterized in that: Multiple intersecting reinforcing ribs (30) are fixedly connected between the first support plate (24) and the second support plate (25).

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