Assembled filling retaining wall

Abstract

The utility model discloses a split mounting type filling retaining wall which comprises a wall body, the wall body is fixedly installed in a roadway, the wall body is built by a plurality of gabion nets in a lap joint mode, barren rocks can be loaded in each gabion net, the gabion nets are fixed in position through wall surrounding steel bars along the rock wall of the roadway, and the gabion nets are arranged in the roadway. By means of the filling retaining wall, construction is simple, complex construction processes are not needed, the form of the filling retaining wall is flexibly adjusted, the capacity of the whole filling retaining wall for resisting a filling body is improved, the filling retaining wall is matched with the initial filling height, the goaf height and the like, and the filling retaining wall can be constructed according to the actual site requirements. And retaining walls with different bearing capacities are constructed, so that the overall strength of the filling body is ensured, and the wall body is prevented from collapsing.

Description

Technical field:

[0001] The utility model relates to the technical field of filling, in particular to an assembled filling retaining wall. Background technology:

[0002] The backfill mining method mainly uses relevant equipment on the surface to mix the tailings and corresponding cementing materials and transport them to the underground goaf through pipelines5. In the entire backfill mining process, the construction of the backfill retaining wall is an important task that must be completed in advance before the backfill work begins. The construction quality of the backfill retaining wall affects the efficiency and quality of the backfill project.

[0003] The current traditional filling retaining wall structures include brick retaining walls, concrete retaining walls, steel structure retaining walls, etc. The construction process of these retaining wall structures is extremely cumbersome, and it is very easy to leak slurry during the filling process. There are also other ways to form filling retaining wall structures, such as the patent CN202011293773.5 that publishes a simple combined filling retaining wall construction method and the patent CN201110056097.4 that discloses a filling retaining wall constructed using excavated waste rock and its construction method. Although it is faster than the traditional construction of the filling retaining wall structure, it cannot guarantee the overall strength of the filling body, and is prone to wall collapse. Utility model content:

[0004] To this end, the utility model provides an assembled filling retaining wall to overcome the problems of the prior art.

[0005] The utility model is implemented by the following technical solutions:

[0006] An assembled filling retaining wall comprises a wall body, which is fixedly installed in a tunnel. The wall body is constructed by overlapping a plurality of gabions, and waste rocks can be loaded into each gabion. The gabions are fixed in position along the tunnel rock wall by ring wall steel bars, and both ends of the ring wall steel bars are welded to anchor rods at the bottom of the tunnel.

[0007] Preferably, the gabion mesh is composed of a threaded steel welded frame and mesh wire, and the mesh wire can be woven from steel wire or galvanized wire.

[0008] Preferably, the annular wall reinforcement is made of round steel with a diameter ≥ 8 mm.

[0009] Preferably, the anchor rod adopts a pipe seam anchor rod, which is convenient for inserting and fixing the annular wall reinforcement, and the annular wall reinforcement and the anchor rod are welded and fixed, and the number of welding points is ≥3.

[0010] Preferably, multiple gabions can be arranged in a building block manner, and the arrangement is in the form of decreasing longitudinal cross-sections from bottom to top.

[0011] Preferably, multiple gabions can be overlapped and laid in a stepped manner to form a wall.

[0012] Preferably, a geotextile is laid on the side of the wall facing the empty area, and the geotextile can be fixed by using colloid.

[0013] The advantages of the utility model are as follows: the filling retaining wall is simple to construct and does not require complicated construction technology. By flexibly adjusting the form of the filling retaining wall, the overall ability of the filling retaining wall to resist the filling body is increased, which is matched with the initial filling height, the height of the goaf, etc. Different retaining walls with different bearing capacities can be constructed according to actual on-site needs to ensure the overall strength of the filling body and prevent wall collapse. Description of the drawings:

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 Schematic diagram of the structure of the middle II-II section;

[0017] Figure 3 For the utility model Figure 1 Schematic diagram of the III-III cross-section structure.

[0018] In the figure: gabion mesh 1, ring wall steel bars 2, anchor rods 3, geotextile 4, and empty area 5. Specific implementation method:

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] like Figure 1 , Figure 2As shown, the filling retaining wall includes a wall body, which is fixedly installed in the tunnel. The wall body is constructed by overlapping multiple gabions 1. Each gabion 1 can be filled with waste rock. The gabion 1 is fixed in position by annular wall steel bars 2 along the rock wall of the tunnel. Both ends of the annular wall steel bars 2 are welded to the anchor rods 3 at the bottom of the tunnel. During use, the size and number of the gabion 1 can be adjusted according to the size of the tunnel section to ensure sufficient bearing capacity. At the same time, the waste rock loaded into the gabion 1 can directly serve as a water filter without the need to arrange a water filter pipeline.

[0021] A scraper can be used to pour waste rocks of appropriate size into the gabion mesh 1, and then the form of the filling retaining wall is determined based on the actual cross-section conditions, the height of the filling void 5, the single filling volume and other parameters.

[0022] The gabion mesh 1 is composed of a threaded steel welded frame and mesh wire. The mesh wire can be woven with steel wire or galvanized wire. During use, the length of the gabion mesh 1 is the width of the tunnel, generally 2.8 to 3.5 meters; the width depends on the size of the empty area 5 and the ease of transportation, generally 0.5 to 0.8 meters; the height should be 20 to 30 cm lower than the maximum lifting height of the scraper, generally 0.6 to 0.8 meters.

[0023] The ring wall reinforcement 2 is made of round steel with a diameter of not less than 8 mm, which is pre-processed on the surface according to the tunnel section. The anchor rod 3 is a pipe seam anchor rod, which is convenient for inserting and fixing the ring wall reinforcement 2 and welding. There should be no less than 3 welding points.

[0024] A plurality of gabions 1 can be arranged in a building block manner, and the arrangement is in the form of decreasing longitudinal cross-sections from bottom to top.

[0025] like Figure 3 As shown, multiple gabions 1 can be overlapped and laid in a stepped manner to form a wall. The bottom layer of gabions 1 is laid directly, and the upper layer of gabions 1 is formed by first loading waste rocks into the gabions 1 and then hoisting and splicing them.

[0026] The height of each gabion mesh 1 is 10 to 20 cm lower than the maximum lifting height of the scraper.

[0027] like Figure 2 , Figure 3 As shown, a geotextile 4 is also laid on the side of the wall facing the empty area 5. The geotextile 4 can be fixed by a colloid, so that the slurry does not run away or leak during the filling process.

[0028] Depending on the height of the tunnel wall, suitable small-sized gabions can be used for masonry on the top of the tunnel, and foam glue can be used to seal the gaps on the edges.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An assembled filling retaining wall, characterized in that: It includes a wall body, which is fixedly installed in the tunnel. The wall body is built by overlapping multiple gabions, and waste rocks can be loaded into each gabion. The gabion is fixed in position along the rock wall of the tunnel by ring wall steel bars, and both ends of the ring wall steel bars are welded to anchor rods at the bottom of the tunnel.

2. The assembled filling retaining wall according to claim 1, characterized in that: The gabion mesh is composed of a threaded steel welded frame and mesh wires, and the mesh wires can be woven from steel wires or galvanized wires.

3. The assembled filling retaining wall according to claim 2, characterized in that: The annular wall reinforcement is made of round steel with a diameter of ≥8mm.

4. The assembled filling retaining wall according to claim 3 is characterized in that: The anchor rod adopts a pipe seam anchor rod, which is convenient for inserting and fixing the annular wall steel bars, and the annular wall steel bars and the anchor rod are welded and fixed, and the number of welding points is ≥3.

5. An assembled filling retaining wall according to any one of claims 1 to 4, characterized in that: Multiple gabions can be arranged in a building block manner, and the arrangement is in the form of decreasing longitudinal sections from bottom to top.

6. The assembled filling retaining wall according to claim 5, characterized in that: Multiple gabions can be overlapped and laid in a stepped manner to form a wall.

7. The assembled filling retaining wall according to claim 6, characterized in that: A geotextile is also laid on the side of the wall facing the empty area, and the geotextile can be fixed by using colloid.

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