Combined filling retaining wall structure

Abstract

The utility model relates to a combined filling retaining wall structure, and belongs to the technical field of filling retaining walls. Comprising multiple sets of alloy stand columns which are longitudinally installed and have hydraulic lifting and multiple sets of transverse telescopic rods, the multiple sets of transverse telescopic rods are longitudinally and fixedly arranged on the rear sides of the multiple sets of alloy stand columns at equal intervals through cross fasteners, the two ends of each transverse telescopic rod are symmetrically connected with side U-shaped groove frames attached to the roadway wall, and the top ends of the alloy stand columns are detachably connected with a supporting table assembly. By arranging the inflatable sealing air bags, gaps between the side U-shaped groove frame and the roadway wall and between the top U-shaped groove frame and the roadway top can be effectively filled, the plugging effect is good, and the slurry leakage phenomenon can be effectively avoided. And secondly, the overall assembly and disassembly process of the structure is rapid, simple and convenient, and the mining and filling circulation time can be effectively shortened, so that the production efficiency of a stope is improved. The structure does not need wood, metal materials are adopted, the reusable design is adopted, and the construction cost of the filling retaining wall is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of filling retaining wall technology, and in particular to a combined filling retaining wall structure. Background Technology

[0002] In the process of strip backfilling mining, the backfill grout retaining wall plays a crucial role. It can effectively block the backfill grout, prevent it from leaking into areas outside the goaf, ensure the backfilling effect and mining safety, and is an important guarantee for the backfill grout to achieve its intended function in the goaf.

[0003] Existing mine backfill retaining walls in both domestic and international applications are diverse. Based on construction methods and materials, they can be categorized into four types: block retaining walls, concrete retaining walls, wooden retaining walls, and steel wire rope flexible retaining walls. However, despite their individual characteristics, these backfill retaining wall types generally suffer from several common drawbacks. For example, grout leakage is frequent, leading to unsatisfactory filling results; the construction process is time-consuming, resulting in a long construction period and impacting mining progress; material consumption is high, increasing construction costs; and many retaining wall types have low recycling rates, making effective resource recovery and reuse difficult after use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a combined filling retaining wall structure. The technical solution of this utility model is as follows:

[0005] A combined filling retaining wall structure includes multiple sets of longitudinally installed hydraulically lifting alloy columns and multiple sets of transverse telescopic rods. The transverse telescopic rods are longitudinally fixed at equal intervals to the rear side of the alloy columns via cross-shaped fasteners. The two ends of each transverse telescopic rod are symmetrically connected to side U-shaped trough frames that fit against the tunnel wall. A support assembly is detachably connected to the top of each alloy column. A top U-shaped trough frame that fits against the tunnel roof is connected above the support assembly. Inflatable sealing airbags are fixedly connected inside both the side and top U-shaped trough frames. Adjustable diagonal braces are detachably connected to the front side of each alloy column. A wire rope mesh is installed behind each set of transverse telescopic rods, and a filter cloth is installed behind the wire rope mesh. Both the wire rope mesh and the filter cloth are hooked to the rear side of the side and top U-shaped trough frames.

[0006] Optionally, the lateral telescopic rod includes a main rod and two auxiliary rods. The two auxiliary rods are threaded to both ends of the main rod. Both ends of the main rod are provided with threaded holes that cooperate with the auxiliary rods. A hexagonal knob is fixedly sleeved on the outer side of the auxiliary rod away from the main rod.

[0007] Optionally, a sleeve is rotatably connected to the center of the side U-shaped groove frame near the transverse telescopic rod. The sleeve is fixedly fitted onto the end of the auxiliary rod away from the main rod by bolts. A limit rod is fixedly connected to one side of the side U-shaped groove and directly below the sleeve. Both ends of the main rod are fixedly connected to side plates, and a limit hole is opened through the side plate to slide with the limit rod.

[0008] Optionally, the support assembly includes two sets of fixing rings and a support plate for fixing the top U-shaped channel frame. The two sets of fixing rings are detachably sleeved on the outer side of the upper end of the alloy column. A fixing plate is fixedly connected to the rear side of the two sets of fixing rings. A support base is fixedly connected to the lower rear side of the fixing plate. A threaded push rod is rotatably connected to the support base. A hexagonal knob is fixedly sleeved on the lower end of the threaded push rod. A movable column is slidably connected to the rear side of the fixing plate. The movable column is threaded onto the upper outer side of the threaded push rod through a threaded hole on its lower surface. The support plate is fixedly connected to the upper end of the movable column. Diagonal braces fixedly connected to the movable column are symmetrically fixed on both sides of the lower surface of the support plate. The support plate and the top U-shaped channel frame are connected by bolts.

[0009] Optionally, a guide groove is provided on the rear side of the fixed plate, and a guide block is fixedly connected to the front side of the movable column, the guide block being slidably connected inside the guide groove.

[0010] Optionally, the rear sides of both the side U-shaped trough frame and the top U-shaped trough frame are fixedly connected with multiple sets of hanging rings for hooking the wire rope mesh and the filter cloth.

[0011] Optionally, the inflatable sealing airbag is fixedly connected to the inside of the side U-shaped groove frame and the top U-shaped groove frame by rubber ropes.

[0012] Optionally, the adjustable diagonal brace includes an inner rod and an outer rod. The outer rod is slidably sleeved on the lower outer side of the inner rod and the two are fixed by bolts. The upper end of the inner rod is hinged with a fixing ring two, which is detachably sleeved on the outside of the alloy column. The lower end of the outer rod is hinged with a base plate fixed to the roadway floor.

[0013] Optionally, the filter cloth may be made of geotextile or nylon woven fabric.

[0014] All of the above optional technical solutions can be combined arbitrarily, and this utility model does not provide a detailed description of the structure after each combination.

[0015] The beneficial effects of this utility model through the above solution are as follows:

[0016] 1. This utility model allows the side U-shaped groove frames at both ends to be tightly attached to the tunnel wall by adjusting the length of the transverse telescopic rod. By adjusting the height of the support assembly, the top U-shaped groove frame can be tightly attached to the tunnel roof, thus making the structure more stable. Furthermore, since the lengths of both the alloy column and the transverse telescopic rod are adjustable, this filling retaining wall structure is highly versatile and can be applied to tunnels of different specifications.

[0017] 2. By setting up inflatable sealing airbags, the gaps between the side U-shaped trough frame and the roadway wall, and between the top U-shaped trough frame and the roadway roof can be effectively filled, and the sealing effect is good, which can effectively prevent grout leakage.

[0018] 3. The assembly and disassembly of the horizontal telescopic bar is simple and quick. The operation can be easily completed by adjusting the length of the horizontal telescopic bar. The horizontal telescopic bar is connected to the alloy column via a cross-shaped fastener. The overall assembly and disassembly process is fast and convenient, effectively shortening the mining and filling cycle time and thus improving the production efficiency of the mining area. This structure does not require the use of wood; it uses metal materials and a reusable design, greatly reducing the construction cost of the filling retaining wall.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall appearance structure of the combined filling retaining wall structure provided by this utility model;

[0021] Figure 2 An exploded structural diagram of the combined filling retaining wall structure provided by this utility model;

[0022] Figure 3 An exploded structural diagram of some components in the combined filling retaining wall structure provided by this utility model;

[0023] Figure 4 This is an exploded structural diagram of the transverse telescopic rod, cross fastener, side U-shaped groove frame and inflatable sealing airbag in this utility model;

[0024] Figure 5 This is an exploded structural diagram of the auxiliary rod and the side U-shaped groove frame in this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the support platform assembly and the top U-shaped groove frame in this utility model.

[0026] Figure 7 This is an exploded structural diagram of the support assembly in this utility model;

[0027] Figure 8 This is a cross-sectional view of the support platform assembly in this utility model;

[0028] Figure 9 This is an exploded structural diagram of the adjustable diagonal brace in this utility model.

[0029] Numbered in the diagram: 1. Alloy column; 2. Horizontal telescopic rod; 21. Main rod; 211. Threaded hole 1; 212. Side plate; 2121. Limiting hole; 22. Sub-rod; 221. Hexagonal knob 1; 3. Cross fastener; 4. Side U-shaped groove frame; 41. Sleeve; 42. Limiting rod; 43. Hanging ring; 5. Support assembly; 51. Fixing ring 1; 52. Fixing plate; 521. Guide groove; 53. Support Support base; 54. Threaded top rod; 541. Two hexagonal knobs; 55. Movable column; 551. Guide block; 552. Two threaded holes; 56. Support plate; 561. Diagonal brace; 6. Top U-shaped groove frame; 7. Inflatable sealing airbag; 71. Rubber rope; 8. Adjustable diagonal brace; 81. Inner rod; 82. Outer rod; 83. Two fixing rings; 84. Base plate; 9. Steel wire rope mesh; 10. Filter cloth. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] Please see Figure 1-9 This utility model provides a combined filling retaining wall structure, including multiple sets of longitudinally installed alloy columns 1 with hydraulic lifting and multiple sets of transverse telescopic rods 2. The multiple sets of transverse telescopic rods 2 are longitudinally fixed at equal intervals to the rear side of the multiple sets of alloy columns 1 by cross fasteners 3. The two ends of the transverse telescopic rods 2 are symmetrically connected to side U-shaped trough frames 4 that fit against the tunnel wall. The top of the alloy column 1 is detachably connected to a support assembly 5. Above the support assembly 5 is a top U-shaped trough frame 6 that fits against the tunnel top. The inside of the side U-shaped trough frame 4 and the top U-shaped trough frame 6 are both fixedly connected to inflatable sealing airbags 7. The front side of the alloy column 1 is detachably connected to an adjustable diagonal brace 8. The rear side of the multiple sets of transverse telescopic rods 2 is provided with a wire rope mesh 9. The rear side of the wire rope mesh 9 is provided with a filter cloth 10. The wire rope mesh 9 and the filter cloth 10 are both hooked to the rear side of the side U-shaped trough frame 4 and the top U-shaped trough frame 6.

[0032] This invention allows the side U-shaped groove frames 4 at both ends to be tightly attached to the tunnel wall by adjusting the length of the transverse telescopic rod 2. By adjusting the height of the support assembly 5, the top U-shaped groove frame 6 can be tightly attached to the tunnel roof, thus making the structure more stable. At the same time, since the lengths of the alloy column 1 and the transverse telescopic rod 2 are both adjustable, this filling retaining wall structure has strong versatility and can be used in tunnels of different specifications.

[0033] By setting up an inflatable sealing airbag 7, the gaps between the side U-shaped trough frame 4 and the roadway wall, and between the top U-shaped trough frame 6 and the roadway roof can be effectively filled, and the sealing effect is good, which can effectively prevent grout leakage.

[0034] By installing hydraulically lifted alloy columns 1 and horizontal telescopic rods 2, the alloy columns 1 can be installed perpendicular to the roadway floor. The overall length of the alloy columns 1 can then be adjusted using hydraulic lifting to ensure they fully abut against the roadway floor and roof, thus guaranteeing structural stability. The alloy columns 1 and horizontal telescopic rods 2 are fixed together using cross-shaped fasteners 3, making the overall structure more stable and providing better resistance to earthquakes and shock waves, reducing the damage to the retaining wall caused by blasting in adjacent mining areas.

[0035] Furthermore, the assembly and disassembly of the transverse telescopic rod 2 is simple and quick. The operation can be easily completed by adjusting the length of the transverse telescopic rod 2. The transverse telescopic rod 2 is connected to the alloy column 1 via a cross-shaped fastener 3. The overall assembly and disassembly process is fast and convenient, effectively shortening the mining and filling cycle time and thus improving the production efficiency of the mining area. This structure does not require the use of wood, employs metal materials, and features a reusable design, significantly reducing the construction cost of the filling retaining wall.

[0036] Specifically, the filter wall is composed of steel wire rope mesh 9 and filter cloth 10, which allows for rapid dewatering, ensuring the early strength formation of the filling material and guaranteeing the effectiveness and quality of the filling wall. Adjustable diagonal braces 8 are installed on the front side of the alloy column 1 to improve its bending resistance, making the structure more stable.

[0037] Specifically, introducing an airbag structure into the filling retaining wall structure overcomes the shortcomings of traditional methods that involve spraying quick-hardening cement mortar at the interface, enhances the sealing effect, and can effectively reduce downhole environmental pollution.

[0038] Furthermore, the transverse telescopic rod 2 includes a main rod 21 and two auxiliary rods 22. The two auxiliary rods 22 are threaded to both ends of the main rod 21. Both ends of the main rod 21 are provided with threaded holes 211 that cooperate with the auxiliary rods 22. A hexagonal knob 221 is fixedly sleeved on the outer side of the end of the auxiliary rod 22 away from the main rod 21.

[0039] Specifically, the two sets of auxiliary rods 22 are threadedly engaged with the main rod 21. By rotating the auxiliary rods 22 using the hexagonal knob 221, the overall length of the lateral telescopic rod 2 can be adjusted to meet different working environments and needs. The hexagonal knob 221 is designed to facilitate operation with a wrench, ensuring an efficient and safe adjustment process.

[0040] Furthermore, a sleeve 41 is rotatably connected to the center of the side U-shaped groove frame 4 near the transverse telescopic rod 2. The sleeve 41 is fixedly sleeved on the end of the auxiliary rod 22 away from the main rod 21 by bolts. A limit rod 42 is fixedly connected to one side of the side U-shaped groove frame 4 and directly below the sleeve 41. Both ends of the main rod 21 are fixedly connected to side plates 212. A limit hole 2121 that slides through the side plate 212 and is in sliding cooperation with the limit rod 42 is provided.

[0041] Specifically, when it is necessary to adjust the overall length of the transverse telescopic rod 2 so that the side U-shaped groove frames 4 at both ends are in close contact with the tunnel wall, the auxiliary rod 22 can be manually rotated to move the auxiliary rod 22 away from the main rod 21. During this process, the limiting rod 42 and the limiting hole 2121 cooperate with each other to ensure that the side U-shaped groove frame 4 can only move laterally and cannot rotate with the auxiliary rod 22.

[0042] Furthermore, the support assembly 5 includes two sets of fixing rings 51 and a support plate 56 for fixing the top U-shaped channel frame 6. The two sets of fixing rings 51 are detachably sleeved on the outer side of the upper end of the alloy column 1. A fixing plate 52 is fixedly connected to the rear side of the two sets of fixing rings 51. A support base 53 is fixedly connected to the lower rear side of the fixing plate 52. A threaded push rod 54 is rotatably connected to the support base 53. A hexagonal knob 541 is fixedly sleeved on the lower end of the threaded push rod 54. A movable column 55 is slidably connected to the rear side of the fixing plate 52. The movable column 55 is threaded onto the upper outer side of the threaded top rod 54 through the threaded hole 552 on its lower surface. The support plate 56 is fixedly connected to the upper end of the movable column 55. The lower surface of the support plate 56 is symmetrically fixed with diagonal bracing rods 561 that are fixedly connected to the movable column 55. The support plate 56 is connected to the top U-shaped groove frame 6 by bolts. The rear side of the fixed plate 52 is provided with a guide groove 521. The front side of the movable column 55 is fixedly connected with a guide block 551, which is slidably connected inside the guide groove 521.

[0043] Specifically, by adjusting the height of the support plate 56, the height of the top U-shaped trough frame 6 is changed, allowing it to fit snugly against the tunnel roof. Specifically, firstly, two sets of fixing rings 51 are bolted and fitted onto the appropriate positions on the outer side of the upper end of the alloy column 1. Then, rotating the hexagonal knob 541 drives the threaded push rod 54 to rotate. The threaded connection between the threaded push rod 54 and the movable column 55 allows the threaded push rod 54 to push the movable column 55 up and down along the longitudinal direction of the fixed plate 52 during rotation, thereby causing a change in the height of the support plate 56. The guide block 551, when sliding within the guide groove 521, acts as a limiting device, restricting the movable column 55 to move smoothly only along the longitudinal direction of the fixed plate 52, avoiding any unnecessary lateral sliding or tilting.

[0044] Furthermore, the rear sides of both the side U-shaped trough frame 4 and the top U-shaped trough frame 6 are fixedly connected with multiple sets of hanging rings 43 for hooking the wire rope mesh 9 and the filter cloth 10.

[0045] Specifically, the wire rope mesh 9 and the filter cloth 10 are fixed to the hanging ring 43 by hooks, which can ensure a firm fixation while making disassembly and assembly more convenient.

[0046] Furthermore, the inflatable sealing airbag 7 is fixedly connected to the inside of the side U-shaped groove frame 4 and the top U-shaped groove frame 6 by a rubber rope 71.

[0047] Specifically, the inflatable sealing airbag 7, the side U-shaped groove frame 4, and the top U-shaped groove frame 6 are connected by rubber ropes 71 to form a detachable structure, which facilitates subsequent disassembly and assembly, and at the same time ensures that the inflatable sealing airbag 7 is stably fixed during use, preventing displacement or loosening.

[0048] Furthermore, the adjustable diagonal brace 8 includes an inner rod 81 and an outer rod 82. The outer rod 82 is slidably sleeved on the lower outer side of the inner rod 81 and the two are fixed by bolts. The upper end of the inner rod 81 is hinged with a fixing ring 83, which is detachably sleeved on the outer side of the alloy column 1. The lower end of the outer rod 82 is hinged with a base plate 84 fixed to the roadway floor.

[0049] Specifically, when installing the adjustable diagonal brace 8, simply use bolts to attach the fixing ring 83 to the appropriate position on the outside of the alloy column 1. Then, adjust the angle between the inner rod 81 and the fixing ring 83 according to the required support angle. Next, adjust the relative position of the inner rod 81 and the outer rod 82, and then fix them with bolts to achieve the adjustment of the overall length of both. Finally, fix the base plate 84 to the tunnel floor. This adjustable design makes the installation process more flexible and convenient, and can adapt to different environments and support requirements.

[0050] Furthermore, the filter cloth 10 is made of geotextile or nylon woven fabric.

[0051] Specifically, geotextiles or nylon woven fabrics have good water filtration effects.

[0052] The construction process for this combined infill retaining wall structure is as follows:

[0053] The first step is to select a suitable location to install alloy column 1. The length of alloy column 1 is changed by hydraulic lifting so that it abuts between the roadway floor and the roof. (To ensure the stability of the filling retaining wall, a column socket can be drilled at the contact point between alloy column 1 and the roadway to increase the fixing capacity of alloy column 1.)

[0054] The second step involves securing the inflatable sealing airbag 7 to the side U-shaped trough frame 4 and the top U-shaped trough frame 6 using rubber ropes 71, and then installing the transverse telescopic rod 2 from bottom to top. The length of the transverse telescopic rod 2 is adjusted so that the side U-shaped trough frames 4 at both ends are tightly against the tunnel wall.

[0055] The third step is to install the top U-shaped trough frame 6 and adjust the height of the support plate 56 to make the top U-shaped trough frame 6 fit tightly against the roof of the roadway.

[0056] Fourth step, use cross buckle 3 to bind the horizontal telescopic rod 2 to the alloy column 1, and then hook the wire rope mesh 9 and filter cloth 10 onto the hanging ring 43;

[0057] The fifth step is to inflate the inflatable sealing airbag 7. During the inflation process, the inflatable sealing airbag 7 will gradually expand and fit tightly against the tunnel wall, filling the gaps and thus forming a solid filling retaining wall structure.

[0058] The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A combined infill retaining wall structure, characterized in that: The system includes multiple sets of longitudinally installed hydraulically lifted alloy columns (1) and multiple sets of transverse telescopic rods (2). The multiple sets of transverse telescopic rods (2) are longitudinally fixed at equal intervals to the rear side of the multiple sets of alloy columns (1) by cross fasteners (3). The two ends of the transverse telescopic rods (2) are symmetrically connected to side U-shaped groove frames (4) that fit against the tunnel wall. The top of the alloy column (1) is detachably connected to a support assembly (5). The top of the support assembly (5) is connected to a top U-shaped groove that fits against the tunnel top. The frame (6), the side U-shaped trough frame (4) and the top U-shaped trough frame (6) are both fixedly connected with inflatable sealing airbags (7), the front side of the alloy column (1) is detachably connected with an adjustable diagonal brace (8), the rear side of multiple sets of the transverse telescopic rods (2) is provided with a wire rope mesh (9), the rear side of the wire rope mesh (9) is provided with a filter cloth (10), the wire rope mesh (9) and the filter cloth (10) are both hooked on the rear side of the side U-shaped trough frame (4) and the top U-shaped trough frame (6); The transverse telescopic rod (2) includes a set of main rods (21) and two sets of auxiliary rods (22). The two sets of auxiliary rods (22) are threaded to both ends of the main rod (21). Both ends of the main rod (21) are provided with threaded holes (211) that cooperate with the auxiliary rods (22). A hexagonal knob (221) is fixedly sleeved on the outer side of the end of the auxiliary rod (22) away from the main rod (21). The support assembly (5) includes two sets of fixing rings (51) and a support plate (56) for fixing the top U-shaped groove frame (6). The two sets of fixing rings (51) are detachably sleeved on the upper outer side of the alloy column (1). A fixing plate (52) is fixedly connected to the rear side of the two sets of fixing rings (51). A support base (53) is fixedly connected to the lower rear side of the fixing plate (52). A threaded push rod (54) is rotatably connected to the support base (53). The lower end of the threaded push rod (54) is fixedly sleeved with a... The hexagonal knob (541) has a movable column (55) slidably connected to the rear side of the fixed plate (52). The movable column (55) is threaded onto the upper outer side of the threaded top rod (54) through a threaded hole (552) on its lower surface. The support plate (56) is fixedly connected to the upper end of the movable column (55). The lower surface of the support plate (56) is symmetrically fixed with diagonal braces (561) that are fixedly connected to the movable column (55). The support plate (56) is connected to the top U-shaped groove frame (6) by bolts.

2. The combined filling retaining wall structure according to claim 1, characterized in that, A sleeve (41) is rotatably connected to the center of the side U-shaped groove frame (4) near the transverse telescopic rod (2). The sleeve (41) is fixedly sleeved on the end of the auxiliary rod (22) away from the main rod (21) by bolts. A limit rod (42) is fixedly connected to one side of the side U-shaped groove frame (4) and directly below the sleeve (41). Both ends of the main rod (21) are fixedly connected to side plates (212). A limit hole (2121) is opened through the side plate (212) to slide with the limit rod (42).

3. The combined filling retaining wall structure according to claim 1, characterized in that, The fixed plate (52) has a guide groove (521) on its rear side, and the movable column (55) has a guide block (551) fixedly connected to its front side. The guide block (551) is slidably connected inside the guide groove (521).

4. The combined filling retaining wall structure according to claim 1, characterized in that, The rear sides of both the side U-shaped trough (4) and the top U-shaped trough (6) are fixedly connected with multiple sets of hanging rings (43) for hooking the wire rope mesh (9) and the filter cloth (10).

5. A combined filling retaining wall structure according to claim 1 or 4, characterized in that, The inflatable sealing airbag (7) is fixedly connected to the inside of the side U-shaped groove frame (4) and the top U-shaped groove frame (6) by a rubber rope (71).

6. A combined filling retaining wall structure according to claim 1, characterized in that, The adjustable diagonal brace (8) includes an inner rod (81) and an outer rod (82). The outer rod (82) is slidably sleeved on the lower outer side of the inner rod (81) and the two are fixed by bolts. The upper end of the inner rod (81) is hinged with a fixing ring (83), which is detachably sleeved on the outside of the alloy column (1). The lower end of the outer rod (82) is hinged with a base plate (84) fixed to the roadway floor.

7. A combined filling retaining wall structure according to claim 1, characterized in that, The filter cloth (10) is made of geotextile or nylon woven fabric.

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