Filling type ore pillar

Abstract

The invention discloses a filling type ore pillar which comprises a hollow pillar body formed by vertically overlapping and serially connecting a plurality of rubber rings, a filling area of tailing cementing slurry is formed in the hollow pillar body, a vertical rod is arranged in the center of the filling area, and the vertical rod is connected with the rubber rings through a plurality of radial steel wire ropes. By the adoption of the filling type ore pillar, the impact resistance is improved, and the roof contact effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mining, and in particular relates to a filling type ore pillar. Background Art

[0002] Goaf is the space formed after the underground ore body is mined. It is a major source of danger faced by safe mining in mines. The roof is the most critical factor in the treatment of goaf. Artificially constructed pillars support the roof. By applying external force to balance the stress on the roof and improving the stress environment of the roof, the stability of the roof can be greatly improved. It is one of the effective methods for dealing with goaf. In the engineering practice, artificial pillars (filling type) are cast with cement, sand and gravel and other materials with good compressive properties. The supporting effect depends on whether the pillars are connected to the roof. Only when they are completely connected to the roof can the artificial pillars play a supporting role. Otherwise, the supporting effect will be greatly reduced or even completely unable to play a supporting role. In fact, due to the overflow of cementitious materials, it is difficult for artificial pillars to connect to the top.

[0003] In addition, when traditional filling pillars are subjected to stress wave impact, they are very likely to peel off or even collapse on the free surface of the filling body. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a filling type ore pillar so as to improve the impact resistance and enhance the top connection effect.

[0005] The present invention solves the above problems by the following technical means:

[0006] The present invention provides a filling type ore pillar, comprising a hollow column formed by vertically stacking and connecting a plurality of rubber rings in series, wherein a filling area of ​​tailings cementing slurry is formed in the hollow column, a vertical pole is arranged at the center of the filling area, and the vertical pole is connected to the rubber ring through a plurality of radial steel wire ropes.

[0007] Furthermore, both ends of the rubber ring are formed with constrictions.

[0008] Furthermore, adjacent rubber rings are glued together.

[0009] Furthermore, a support plate is connected to the bottom of the vertical pole.

[0010] Furthermore, an exhaust passage is provided at the center of the vertical pole, and an exhaust hole connected to the exhaust passage is provided on the side wall of the vertical pole.

[0011] Furthermore, the vertical pole is a wooden or steel vertical pole.

[0012] Beneficial effects of the present invention:

[0013] The present application discloses a filling type ore pillar, comprising a hollow column composed of a plurality of rubber rings vertically stacked and connected in series, wherein a filling area of ​​tailings cementing slurry is formed in the hollow column, a vertical pole is arranged at the center of the filling area, and the vertical pole is connected to the rubber ring through a plurality of radial steel wire ropes. The filling type ore pillar of the present application improves the impact resistance and the top connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a schematic structural diagram of a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present invention will become clearer and more specific. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0017] like Figure 1 As shown, this embodiment discloses a filled ore pillar, including a hollow column composed of a plurality of rubber rings 1 vertically stacked in series, a filling area 4 of tailings cementing slurry is formed in the hollow column, a vertical pole 5 is arranged at the center of the filling area, the vertical pole is connected to the rubber ring through a plurality of radial steel wire ropes 2, an exhaust channel 6 is opened at the center of the vertical pole, and an exhaust hole 7 connected to the exhaust channel is opened on the side wall of the vertical pole; in this embodiment, adjacent rubber rings are glued together, a support plate 8 is connected to the bottom of the vertical pole, and the vertical pole is a wooden or steel vertical pole.

[0018] By adopting the filled pillar of the present application, on the one hand, the rubber ring has a restraining effect on the tailings cementing slurry, preventing it from overflowing to the surroundings, which is beneficial to ensuring the top connection effect; on the other hand, the rubber ring is highly flexible, which is beneficial to improving the impact resistance of the filling area. Furthermore, the rubber ring is prone to produce a large deformation under the action of stress waves, so that the stress wave energy is continuously absorbed by the rubber medium and converted into elastic energy. Thereafter, the elastic energy will be released in the form of repeated oscillations of the rubber ring, and the lower stress wave impact will cause less damage to the rubber ring itself.

[0019] As a further improvement to the above technical solution, both ends of the rubber ring are formed with constrictions; thus, there will be a gap 3 on the outside of the rubber ring where it is fitted, and the stress wave will be reflected multiple times at the gap, so that the energy is dissipated faster, effectively weakening the influence of the stress wave on the filling structure.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A filling type pillar, characterized in that: It comprises a hollow column composed of a plurality of rubber rings vertically stacked and connected in series, wherein a filling area of ​​tailings cementing slurry is formed in the hollow column, a vertical pole is arranged at the center of the filling area, and the vertical pole is connected to the rubber ring through a plurality of radial steel wire ropes.

2. The filling pillar according to claim 1, characterized in that: Both ends of the rubber ring are formed with shrinkage openings.

3. The filling pillar according to claim 1, characterized in that: Adjacent rubber rings are glued together.

4. The filling pillar according to claim 1, characterized in that: The bottom of the vertical pole is connected with a supporting plate.

5. The filling pillar according to claim 1, characterized in that: An exhaust passage is provided at the center of the vertical pole, and an exhaust hole connected with the exhaust passage is provided on the side wall of the vertical pole.

6. The filling pillar according to claim 1, characterized in that: The vertical pole is a wooden or steel vertical pole.

Images