Underground artificial column

Abstract

The utility model relates to the technical field of mine underground support, and particularly discloses an underground artificial false column, which is arranged at an excavation area for excavating ores, plays a supporting role, and comprises N supporting false columns arranged in the excavation area and used for supporting a top plate of the excavation area, the supporting false column comprises a winding weaving part, a top plate and a bottom plate are arranged at the top and the bottom of the winding weaving part respectively, the top plate is in contact with a dome of an excavation area, and the bottom plate is in contact with the bottom of the excavation area; according to the utility model, the weaving and winding part is matched with waste rocks which are originally discarded in an excavation area, and a filling mode is utilized, so that secondary utilization of wastes is realized, compared with pure concrete filling support, the supporting force is stronger, the problem of difficulty in roof contact is avoided, and the winding and weaving part can be entangled according to actual requirements, so that the construction cost is reduced, and the construction efficiency is improved. Therefore, the top plate is matched with dome contact of an excavation area, and the bearing requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of underground mine support, in particular to an underground artificial false column. Background Art

[0002] When metal mines enter the deep high-stress mining stage, rock burst disasters pose a serious threat to the safety of personnel and equipment. The traditional solution is to leave original rock pillars to improve the safety of the mine site, but the original rock pillars are prone to brittle splitting, and leaving original rock pillars will lead to the loss of ore resources. In order to solve this problem, scholars began to study artificial pillars with low cost and high performance. However, existing artificial pillars have a series of problems, including low active support force, low bearing strength, long erection period and complex construction process, especially the common concrete pillars have the problem of difficulty in connecting the top and passive bearing.

[0003] In addition to the pillar problem, deep high-stress mining of metal mines also faces the challenge of waste slag and gravel not being effectively utilized. A large amount of waste rock is generated during the mining process, but if these wastes are not reasonably utilized, it will lead to waste of resources and environmental pollution.

[0004] Therefore, there are two main problems in the current context: First, in terms of pillar technology, it is necessary to develop artificial pillars with low cost and high performance to improve the safety of the mine and ensure the ore recovery rate; second, in terms of resource utilization, it is necessary to solve the problem of ineffective utilization of waste rock to reduce resource waste and environmental load. Solving these problems will have a positive impact on the safety, economy and environmental friendliness of deep high-stress mining in metal mines. Based on this, it is necessary to improve the existing false pillars. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides an underground artificial false pillar, which solves the problem that in the existing technology, it is necessary to develop low-cost and high-performance artificial pillars to improve the safety of the mining site and ensure the ore recovery rate; and it is necessary to solve the problem that waste slag and gravel are not effectively utilized.

[0006] The underground artificial false pillar of the utility model is arranged in the excavation area for excavating ore to play a supporting role, including N supporting false pillars arranged in the excavation area to support the top plate of the excavation area;

[0007] The supporting false column comprises a winding braided portion, the top and bottom of the winding braided portion are respectively provided with a top plate and a bottom plate, the top plate contacts the dome of the excavation area, and the bottom plate contacts the bottom of the excavation area;

[0008] A filling area is provided inside the winding braided portion, and the inside of the filling area is filled with debris from the excavation area.

[0009] As a further improvement of the present invention, the winding braided portion includes a braided portion 1 and a braided portion 2, the number of the braided portion 1 is the same as the number of the braided portion 2, and the braided portion 1 and the braided portion 2 are alternately arranged.

[0010] As a further improvement of the present invention, the two ends of the braided part one and the braided part two are respectively fixed to the top plate and the bottom, and N vertical rods are connected between the braided part one and the braided part two to reinforce the filling area formed by the wound braided parts.

[0011] As a further improvement of the present invention, two ends of the vertical rod are respectively fixed to the top plate and the bottom plate, and N vertical rods are arranged in a circular array.

[0012] As a further improvement of the present invention, the outer sides of the top plate and the bottom plate are both provided with a card slot, and the card slot is provided with a surrounding component.

[0013] As a further improvement of the present invention, the surrounding component includes a surrounding plate, and both ends of the inner side of the surrounding plate are provided with convex rings, and the convex rings are adapted to the clamping grooves.

[0014] As a further improvement of the present invention, the inner side of the surrounding plate is composed of a convex ring and a clamping groove to form a filling area, and the filling area maintains a fixed distance from the winding braided part.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model realizes the secondary utilization of the waste by setting up the woven winding part, cooperating with the originally discarded slag and gravel in the excavation area, and utilizing the filling method. Compared with the simple concrete filling support, the support structure is stronger and there will be no problem of difficulty in connecting to the top. The winding woven part can be entangled according to actual needs, so as to cooperate with the top plate to contact with the dome of the excavation area to meet the load-bearing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the excavation area and the combined structure of the supporting false columns of the utility model;

[0019] Figure 2 This is a schematic diagram of a three-dimensional structure of a combination of a supporting false column and a surrounding component of the utility model;

[0020] Figure 3This is a structural schematic diagram of another angle of the combination of the supporting false column and the surrounding component of the utility model;

[0021] Figure 4 This is a schematic diagram of the top view of the combined structure of the supporting false column and the surrounding components of the utility model;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the AA section structure;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the supporting false column of the utility model.

[0024] In the figure: 1. Excavation area; 2. Supporting false columns; 3. Enclosing parts;

[0025] 21. winding braiding part; 22. top plate; 23. bottom plate; 24. card slot; 25. filling area;

[0026] 211, weaving part 1; 212, weaving part 2; 213, vertical rod;

[0027] 31. Enclosing plate; 32. Raised ring; 33. Filling area. DETAILED DESCRIPTION

[0028] The following will disclose multiple embodiments of the utility model with diagrams. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the utility model. In other words, in some embodiments of the utility model, these physical details are not necessary. In addition, for the purpose of simplifying the diagram, some conventional structures and components will be depicted in a simple schematic manner in the diagram.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] When metal mines enter the deep high-stress mining stage, there are two main problems: First, in terms of pillar technology, it is necessary to develop artificial pillars with low cost and high performance to improve the safety of the mine and ensure the ore recovery rate; second, in terms of resource utilization, it is necessary to solve the problem of ineffective utilization of waste rock to reduce resource waste and environmental load. Solving these problems will have a positive impact on the safety, economy and environmental friendliness of deep high-stress mining of metal mines. Based on this, the application provides an underground artificial false pillar, which is arranged in the excavation area 1 for excavating ore to play a supporting role, characterized in that it includes N supporting false pillars 2 arranged in the excavation area 1, which are used to support the dome of the excavation area 1;

[0031] The supporting false column 2 comprises a winding braided portion 21, and a top plate 22 and a bottom plate 23 are respectively provided at the top and the bottom of the winding braided portion 21, the top plate 22 contacts the dome of the excavation area 1, and the bottom plate 23 contacts the bottom of the excavation area 1;

[0032] A filling area 25 is provided inside the wound braided portion 21 , and the inside of the filling area 25 is filled with earth and dirt from the excavation area 1 .

[0033] Several supporting false pillars 2 are arranged in the excavation area 1, and the number is determined according to the size and shape of the excavation area 1. The positions of these false pillars should be accurately calculated to ensure that the dome of the excavation area 1 is effectively supported.

[0034] Each supporting dummy column 2 includes a winding braided portion 21, which is responsible for supporting the structure of the dummy column 2 and plays a supporting role. The top and bottom of the winding braided portion 21 are respectively provided with a top plate 22 and a bottom plate 23, and the design of these plates is intended to provide a more stable supporting structure.

[0035] The top plate 22 of the dummy column contacts the dome of the excavation area 1, ensuring effective support for the top of the excavation area 1; the bottom plate 23 contacts the bottom of the excavation area 1, ensuring the stability of the dummy column at the bottom.

[0036] A filling area 25 is provided inside the winding braided portion 21 for filling the slag in the excavation area 1. The slag may be waste generated during the mining process, and by filling it into the dummy column, the waste is reused. In addition, considering the filling density and stability of the slag, auxiliary materials such as cement, metal fiber, etc. may be added to ensure the support effect of the dummy column.

[0037] By utilizing the waste slag in the excavation area 1, effective utilization of resources is achieved, resource waste and environmental pollution are reduced, and the design and structure of the dummy pillars are stable, which can effectively support the dome of the excavation area 1 and improve the safety of the mining site. In addition, due to the design of the filling area 25, the dummy pillars have a strong bearing capacity and can cope with the challenges of deep high-stress mining, ensuring the safe recovery of ore and production efficiency.

[0038] And when filling, industrial solid waste or domestic garbage, tailings, etc. can also be combined and filled;

[0039] The winding braided portion 21 includes a braided portion 1 211 and a braided portion 212 . The number of the braided portion 1 211 and the number of the braided portion 212 are the same, and the braided portion 1 211 and the braided portion 212 are alternately arranged.

[0040] The two ends of the braided portion 1 211 and the braided portion 212 are fixed to the top plate 22 and the bottom respectively, and N vertical rods 213 are connected between the braided portion 1 211 and the braided portion 212 to reinforce the filling area 25 formed by the wound braided portion 21.

[0041] The winding braided portion 21 is divided into a braided portion 1 211 and a braided portion 212, which are the same in number and arranged in a staggered manner to enhance the stability and balance of the overall structure. This staggered arrangement can ensure that the support effect of the false column is more uniform and reliable.

[0042] The two ends of each braided part 1 211 and braided part 212 are respectively fixed to the top plate 22 and the bottom plate 23. Such a design forms a tight connection between the braided part and the top plate 22 and the bottom plate 23, ensuring the overall structural stability and supporting effect of the false column.

[0043] N vertical rods 213 are connected between the braided part 1 211 and the braided part 212 to reinforce the filling area 25 formed by winding the braided part 21. The function of these vertical rods 213 is to enhance the structural stability of the filling area 25, prevent the movement and sinking of the filling material, thereby improving the bearing capacity and supporting effect of the false column.

[0044] Through the staggered arrangement of the braided part 1 211 and the braided part 212 and the reinforcement of the vertical rod 213, the overall structure of the false pillar is more solid and can better cope with the challenges of deep high-stress mining environment. Not only the safety and stability of the false pillar are improved, but also the fixing effect of the filling material in the filling area 25 is enhanced, ensuring the reliability and durability of the pillar system.

[0045] In order to ensure that the false pillar has sufficient strength and durability, high-strength and corrosion-resistant materials are usually selected as the materials of the braided portion 1 211 and the braided portion 212. Common choices include steel wire, fiber-reinforced composite materials, and the like.

[0046] Wire Braid: Steel wire is often a common and effective choice due to its excellent tensile strength and corrosion resistance. Wire braid can be woven with wires of different diameters and materials to meet specific engineering needs.

[0047] Fiber-reinforced composite braid: Fiber-reinforced composites are composed of high-strength fibers and matrix materials such as epoxy resins, and have excellent tensile strength and corrosion resistance. They are usually lighter than steel wires and may be more suitable for use in some specific situations.

[0048] The material selection of the vertical rods 213 is also very important, because they directly affect the reinforcement effect of the filling area 25 and the stability of the entire false column structure. For example, you can choose:

[0049] Steel: Steel is a common and widely used material for vertical rods 213 because of its excellent strength and corrosion resistance. Steel is generally able to withstand high pressure and heavy loads, and is suitable for effective reinforcement and support of the filling area 25.

[0050] Synthetic materials: In some cases, synthetic materials such as carbon fiber reinforced polymer (CFRP) can also be selected as the vertical rod 213. These synthetic materials have light weight and excellent tensile strength, which can reduce the deadweight of the false column to a certain extent and improve its bearing capacity.

[0051] Fiberglass: Fiberglass has good mechanical properties and corrosion resistance, and can also be used as a choice for vertical rods 213 in certain specific application scenarios. They are generally lighter than steel while having good tensile strength and stiffness.

[0052] Concrete: In some special environments, such as high temperature, corrosion, etc., concrete can also be selected as the material of the vertical rod 213. The concrete vertical rod 213 can be prepared by prefabrication or on-site casting, and has good durability and stability.

[0053] Two ends of the vertical rod 213 are fixed to the top plate 22 and the bottom plate 23 respectively, and N vertical rods 213 are arranged in a circular shape.

[0054] A slot 24 is formed on the outer sides of the top plate 22 and the bottom plate 23 , and a surrounding component 3 is disposed at the slot 24 .

[0055] The surrounding component 3 includes a surrounding plate 31 . Both ends of the inner side of the surrounding plate 31 are provided with convex rings 32 . The convex rings 32 are adapted to the clamping grooves 24 .

[0056] The inner side of the surrounding plate 31 is formed into a filling area 33 by the convex ring 32 and the clamping groove 24 . The filling area 33 is kept at a fixed distance from the wound braided portion 21 .

[0057] The two ends of the vertical rod 213 are respectively fixed to the top plate 22 and the bottom plate 23 to ensure the stability and reliability of the entire support system. This fixing method can be achieved by bolts, welding or other connection methods to ensure the tight connection between the vertical rod 213 and the top plate 22 and the bottom plate 23.

[0058] N vertical rods 213 are arranged in a circular row. This layout allows the vertical rods 213 to be evenly distributed around the filling area 25, providing a balanced support and reinforcement effect, and enhancing the structural stability of the filling area 25.

[0059] The outer sides of the top plate 22 and the bottom plate 23 are provided with a slot 24 for installing and fixing the surrounding component 3. Such a design can make the surrounding component 3 tightly combined with the top plate 22 and the bottom plate 23, ensuring the sealing and safety of the filling area 25.

[0060] The combination of the protruding ring 32 and the clamping groove 24 forms a protective structure of the filling area 33, ensuring that a fixed distance is maintained between the filling area 25 and the winding braided portion 21, and preventing overflow and leakage of the filling material.

[0061] In the filling area, the slag and gravel existing in the excavation area 1 can be combined for filling, and concrete can also be selected. Concrete has excellent bearing capacity and durability. Filling with concrete by pouring on site or prefabricated slabs can effectively reinforce the filling area and provide good support.

[0062] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An artificial underground pillar, arranged in the excavation area (1) for excavating ore, plays a supporting role, characterized in that: It comprises N supporting false columns (2) arranged in the excavation area (1) and used for supporting the dome of the excavation area (1); The supporting false column (2) comprises a winding braided portion (21), the top and bottom of the winding braided portion (21) are respectively provided with a top plate (22) and a bottom plate (23), the top plate (22) contacts the dome of the excavation area (1), and the bottom plate (23) contacts the bottom of the excavation area (1); A filling area (25) is provided inside the winding braided portion (21), and the inside of the filling area (25) is filled with debris from the excavation area (1).

2. The underground artificial false column according to claim 1, characterized in that: The winding braided portion (21) comprises a braided portion one (211) and a braided portion two (212), the number of the braided portion one (211) and the number of the braided portion two (212) are the same, and the braided portion one (211) and the braided portion two (212) are arranged alternately.

3. The underground artificial false column according to claim 2, characterized in that: The two ends of the braided portion 1 (211) and the braided portion 2 (212) are respectively fixed to the top plate (22) and the bottom, and N vertical rods (213) are connected between the braided portion 1 (211) and the braided portion 2 (212) to reinforce the filling area (25) formed by winding the braided portion (21).

4. The underground artificial false column according to claim 3, characterized in that: The two ends of the vertical rod (213) are respectively fixed to the top plate (22) and the bottom plate (23), and N vertical rods (213) are arranged in a circular array.

5. The underground artificial false column according to claim 1, characterized in that: The outer sides of the top plate (22) and the bottom plate (23) are both provided with a card slot (24), and the card slot (24) is provided with a surrounding component (3).

6. The underground artificial false column according to claim 5, characterized in that: The surrounding component (3) comprises a surrounding plate (31), and both ends of the inner side of the surrounding plate (31) are provided with convex rings (32), and the convex rings (32) are adapted to the clamping groove (24).

7. The underground artificial false column according to claim 6, characterized in that: The inner side of the surrounding plate (31) is formed into a filling area (33) by means of a convex ring (32) and a clamping groove (24), and the filling area (33) maintains a fixed distance from the winding braided portion (21).

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