Open-pit mine mining platform

Abstract

The utility model relates to an open-pit mine mining platform, and relates to the field of open-pit mine mining technology, the open-pit mine mining platform comprises a plurality of steps, each step comprises a slope top platform, a side slope and a slope toe platform, the slope top platform is provided with a bridge deck, the bridge deck is provided with a plurality of reinforcing piles, the reinforcing piles are perpendicular to the bridge deck, and the reinforcing piles are arranged on the bridge deck. The bridge deck and the slope crest platform are arranged in parallel, the top face of the bridge deck and the slope crest platform are located on the same horizontal plane, the reinforcing piles are inserted into the steps, the slope crest platform is provided with a first drainage ditch, the first drainage ditch is arranged between the bridge deck and the slope, and the first drainage ditch is arranged between the bridge deck and the slope. And a second drainage ditch is formed in the slope toe platform. The method has the effects that the slope stability is improved, and the landslide phenomenon is reduced.

Description

Technical Field

[0001] This application relates to the field of open-pit mining technology, and in particular to an open-pit mining platform. Background Technology

[0002] Open-pit mining is a method that requires the removal of large quantities of material, excavating it to form a pit on the ground and slopes extending from it. Slopes are formed by a series of inclines, with platforms separating the inclines and providing catchment areas for falling rocks or ramps for mining transport equipment to reach the bottom of the pit. Slopes are typically excavated at an angle that allows the rock to maintain its natural stability; this angle usually does not exceed 70° and is generally between 50° and 70°.

[0003] During open-pit mining, atmospheric precipitation has a significant impact on the stability of mine slopes. The erosion of slopes by precipitation can easily cause geological disasters such as slope collapse, landslides, and rockfalls, and in severe cases, it can even lead to serious geological disasters such as debris flows. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides an open-pit mining platform.

[0005] This application provides an open-pit mining platform, which adopts the following technical solution:

[0006] An open-pit mining platform includes multiple steps, each step comprising a top platform, a side slope, and a toe platform. A bridge deck is provided on the top platform, and multiple reinforcing piles are installed on the bridge deck. The reinforcing piles are perpendicular to the bridge deck, and the bridge deck is parallel to the top platform. The top surface of the bridge deck and the top platform are on the same horizontal plane. The reinforcing piles are inserted into the steps. A first drainage ditch is provided on the top platform, located between the bridge deck and the side slope. A second drainage ditch is provided on the toe platform.

[0007] By adopting the above technical solution, the combination of the bridge deck and the slope top platform enhances the overall stability of the platform and prevents collapse caused by external forces. Multiple reinforcing piles are vertically inserted into the bridge deck and penetrate deep into the steps, forming a stable support structure and effectively improving the slope's anti-sliding capacity. The first drainage ditch is located between the bridge deck and the slope to promptly drain accumulated water and prevent moisture infiltration from affecting slope stability. The second drainage ditch is located at the slope toe platform to further improve the drainage system and reduce soil erosion and the occurrence of geological disasters. The overall solution significantly improves the stability of the open-pit mine platform and reduces the risk of landslides.

[0008] Preferably, the slope surface is covered with an HDPE membrane.

[0009] By adopting the above technical solutions, covering the slope surface with HDPE membrane can effectively reduce rainwater infiltration and decrease the erosive effect of moisture on the slope soil or rock structure. Combined with the design of bridge decks, reinforcing piles, and drainage ditches, the overall stability of the slope is further improved, reducing the occurrence of landslides. In particular, the installation of HDPE membrane significantly enhances the slope's impermeability, thereby effectively preventing geological disasters such as slope collapse, landslides, and rockfalls caused by atmospheric precipitation.

[0010] Preferably, a seepage-proof slope is provided at the connection between the slope and the toe platform.

[0011] By adopting the above technical solutions, the installation of seepage-proof slopes can effectively reduce water infiltration at the connection between the slope and the toe platform, prevent soil softening and slope instability caused by water infiltration, thereby improving the overall slope's anti-sliding performance and reducing the risk of landslides.

[0012] Preferably, multiple reinforcing anchor cables are inserted inside the slope.

[0013] By adopting the above-mentioned technical solution, the insertion of multiple reinforcing anchor cables inside the slope can significantly improve the slope's stability. The reinforcing anchor cables penetrate deep into the slope, enhancing the connection strength between the rock masses and effectively reducing the occurrence of landslides. Combined with other designs in the stepped structure, such as the bridge deck and reinforcing piles of the slope top platform, the first drainage ditch, and the second drainage ditch of the slope toe platform, the overall solution further optimizes the stability and safety of the open-pit mine platform, reducing the risk of geological disasters. Among these, the installation of reinforcing anchor cables plays a crucial role in improving slope stability, especially in dealing with the erosion of the slope by atmospheric precipitation, effectively preventing slope collapse and landslides.

[0014] Preferably, the reinforcing pile is a vertical reinforced concrete circular pile, the length of the reinforcing pile is 18-25m, the diameter of the reinforcing pile is 200-300mm, and the reinforcing pile is arranged in multiple rows on the bridge deck. The reinforcing piles in the same row are evenly spaced, and the reinforcing piles in adjacent rows are staggered.

[0015] By adopting the above technical solution, the reinforcing piles are vertical reinforced concrete circular piles, with a length of 18-25m, which can penetrate deep into the foundation, enhancing the overall stability of the slope and preventing landslides. The diameter of the reinforcing piles is 200-300mm, ensuring strength while reducing material waste. Multiple rows of reinforcing piles are evenly spaced within the same row, with adjacent rows staggered to form a stable grid structure, further improving the slope's anti-sliding performance and bearing capacity, effectively dispersing stress, and reducing the risk of localized failure.

[0016] Preferably, a composite geomembrane is disposed between the HDPE membrane and the slope, with one side of the composite geomembrane abutting against the surface of the slope and the other side connected to the HDPE membrane.

[0017] By adopting the above technical solution, the composite geomembrane is placed between the slope surface and the HDPE membrane, which can enhance the slope's seepage prevention performance and effectively prevent water from seeping into the slope interior, thereby reducing the problem of slope instability caused by water seepage. One side of the composite geomembrane is in close contact with the slope surface, while the other side is connected to the HDPE membrane. This structure further improves the seepage prevention effect, reduces the scouring and erosion of the slope by atmospheric precipitation, significantly improves the slope's stability, and reduces the occurrence of landslides.

[0018] Preferably, both the first drainage ditch and the second drainage ditch are provided with an impermeable layer, which is an HDPE membrane.

[0019] By adopting the above technical solution, HDPE membranes are installed as seepage-proof layers in the first and second drainage ditches of the open-pit mine platform. This effectively prevents water from seeping into the slope and the interior of the slope toe platform, reducing the impact of water on slope stability and thus reducing the risk of landslides and collapses.

[0020] Preferably, the slope angle is 60-70°.

[0021] By adopting the above technical solution, the slope angle is set at 60-70°, which can make full use of the natural stability angle of the rock, ensure the stability of the slope during the excavation process, and reduce the risk of landslides and collapses. This slope angle range meets the safety requirements of the slope structure while also taking into account mining efficiency and cost control.

[0022] In summary, this application has the following beneficial technical effects:

[0023] 1. By installing bridge deck panels and vertically inserted reinforcing piles on the slope top platform, the overall stability of the slope was effectively enhanced, and the occurrence of landslides was significantly reduced;

[0024] 2. The installation of the first and second drainage ditches can efficiently guide and drain rainwater, reduce the scouring effect of atmospheric precipitation on the slope, and thus improve the slope's water resistance.

[0025] 3. The reinforcing anchors inserted inside the slope further enhance the stability of the slope structure, and together with other technical means, improve the safety of the slope in complex environments. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the open-pit mining platform provided in the embodiments of this application;

[0027] Figure 2 This is a structural schematic diagram of the bridge deck and reinforcing piles provided in the embodiments of this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Step; 11. Slope top platform; 12. Slope; 13. Slope toe platform; 14. First drainage ditch; 15. Second drainage ditch; 16. Impermeable layer; 2. Bridge deck; 3. Reinforcing pile; 4. HDPE membrane; 5. Composite geomembrane; 6. Impermeable slope; 7. Reinforcing anchor cable. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses an open-pit mining platform.

[0031] Reference Figure 1 and Figure 2 An open-pit mining platform includes multiple steps 1, each step comprising a top platform 11, a slope 12, and a toe platform 13. The top platform 11 is equipped with a bridge deck 2, on which multiple reinforcing piles 3 are fixedly installed. The reinforcing piles 3 are perpendicular to the bridge deck 2, and the bridge deck 2 is parallel to the top platform 11. The top surface of the bridge deck 2 and the top platform 11 are on the same horizontal plane. The reinforcing piles 3 are inserted into the steps 1. A first drainage ditch 14 is formed on the top platform 11, located between the bridge deck 2 and the slope 12. A second drainage ditch 15 is formed on the toe platform 13. Both the first drainage ditch 14 and the second drainage ditch 15 are provided with an impermeable layer 16, which is an HDPE membrane 4. The slope angle of the slope 12 is 60-70°.

[0032] The surface of slope 12 is covered with HDPE membrane 4. A composite geomembrane 5 is installed between HDPE membrane 4 and slope 12. One side of composite geomembrane 5 is in contact with the surface of slope 12, and the other side is connected to HDPE membrane 4.

[0033] A seepage-proof slope 6 is provided at the connection between slope 12 and slope toe platform 13. Multiple reinforcing anchor cables 7 are inserted inside slope 12.

[0034] The reinforcing pile 3 is a vertical reinforced concrete circular pile with a length of 18-25m and a diameter of 200-300mm. Multiple rows of reinforcing piles 3 are set on the bridge deck 2. The reinforcing piles 3 in the same row are evenly spaced, while the reinforcing piles 3 in adjacent rows are staggered.

[0035] The implementation principle of an open-pit mining platform according to this application embodiment is as follows: The combination of bridge deck 2 and reinforcing piles 3 significantly improves the bearing capacity and stability of the slope top platform 11, preventing collapse due to rainwater erosion. The design of the first drainage ditch 14 and the second drainage ditch 15 effectively reduces rainwater erosion of the slope 12, thereby improving the overall water resistance and stability of the platform. Furthermore, the use of HDPE membrane 4 further enhances the reliability of the drainage system and reduces the probability of geological disasters. By setting a double-layer impermeable structure on the surface of the slope 12, the impermeability of the slope 12 is significantly improved, reducing the impact of water infiltration on the stability of the slope 12. The combination of composite geomembrane 5 and HDPE membrane 4 not only enhances the impermeability but also improves the overall durability of the structure and reduces maintenance costs. By setting an impermeable slope 6 at the connection between the slope 12 and the slope toe platform 13, the impact of water infiltration on the stability of the slope 12 is effectively reduced. The design of the impermeable slope 6 not only enhances the impermeability but also improves the drainage capacity and reduces the probability of geological disasters.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An open-pit mining platform, characterized in that: The structure includes multiple steps (1), each step (1) including a top platform (11), a slope (12), and a bottom platform (13). The top platform (11) is provided with a bridge deck (2), and the bridge deck (2) is provided with multiple reinforcing piles (3). The reinforcing piles (3) are perpendicular to the bridge deck (2), and the bridge deck (2) is parallel to the top platform (11). The top surface of the bridge deck (2) and the top platform (11) are on the same horizontal plane. The reinforcing piles (3) are inserted into the steps (1). A first drainage ditch (14) is provided on the top platform (11), and the first drainage ditch (14) is located between the bridge deck (2) and the slope (12). A second drainage ditch (15) is provided on the bottom platform (13).

2. The open-pit mining platform according to claim 1, characterized in that: The slope (12) surface is covered with an HDPE membrane (4).

3. The open-pit mining platform according to claim 1, characterized in that: A seepage-proof slope (6) is provided at the connection between the slope (12) and the slope toe platform (13).

4. The open-pit mining platform according to claim 1, characterized in that: Multiple reinforcing anchor cables (7) are inserted inside the slope (12).

5. The open-pit mining platform according to claim 1, characterized in that: The reinforcing pile (3) is a vertical reinforced concrete circular pile. The length of the reinforcing pile (3) is 18-25m and the diameter of the reinforcing pile (3) is 200-300mm. The reinforcing pile (3) is arranged in multiple rows on the bridge deck (2). The reinforcing piles (3) in the same row are evenly spaced, and the reinforcing piles (3) in adjacent rows are staggered.

6. The open-pit mining platform according to claim 2, characterized in that: A composite geomembrane (5) is provided between the HDPE membrane (4) and the slope (12). One side of the composite geomembrane (5) is in contact with the surface of the slope (12), and the other side is connected to the HDPE membrane (4).

7. The open-pit mining platform according to claim 1, characterized in that: Both the first drainage ditch (14) and the second drainage ditch (15) are provided with an impermeable layer (16), which is an HDPE membrane (4).

8. The open-pit mining platform according to claim 1, characterized in that: The slope angle of the slope (12) is 60-70°.

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