A mining method for the inclined crushing of ore bodies

Abstract

The application discloses a mining method for inclined broken ore body and relates to the technical field of mining. The mining method for the inclined broken ore body comprises the following steps: arranging stope along the strike direction of the ore body, and dividing a plurality of stopes into the same panel; dividing the ore body where each panel is located into a plurality of segments along the vertical direction, and the stopes between two adjacent segments are staggered along the strike direction of the ore body; arranging the ore drawing roadway at the bottom of the stope of each segment, and mining from bottom to top in the ore drawing roadway to form the ore pile; the ore pile in the stope is transported out of the stope through the ore drawing roadway; each segment is sequentially backfilled in the order from top to bottom; the stope after the backfilling is completed is cemented and filled to form the cemented filling body; the cemented filling bodies in two adjacent stopes along the strike direction of the ore body are clamped and matched; the mining method provided by the application is convenient for forming a stable roof structure by clamping and matching or staggered arrangement of the two adjacent cemented filling bodies, and the mining safety and the mining efficiency are ensured.

Description

Technical Field

[0001] This invention relates to the field of mining technology, and more particularly to a mining method for inclined and fractured ore bodies. Background Technology

[0002] Mining fractured ore bodies has always been a challenge in the mining industry. Due to the high degree of fracture, the safe exposed width of the roof is very limited, making large-scale mining difficult. In particular, for fractured, steeply dipping, thin to medium-thick ore bodies (3–12 m), the layout of the stope is even more difficult due to the limitations imposed by the ore body shape, making it even harder to achieve safe and efficient mining.

[0003] Currently, the main mining method for this type of ore body is the downward-entry backfill mining method. This method uses tunneling to mine the ore body, with the backfill body serving as a false roof for downward mining. The stope size is generally small, and the mining efficiency is low. Furthermore, it requires personnel to enter the stope and work under the exposed roof, which poses certain safety risks. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the shortcomings of related technologies, and the present invention provides a mining method for inclined fractured ore bodies.

[0005] This invention provides the following technical solution: A mining method for inclined fractured ore bodies, comprising: The mining areas are arranged along the strike direction of the ore body, and multiple mining areas are divided into the same panel.

[0006] The ore body containing each panel is divided into multiple segments along the vertical direction, and the mining areas between two adjacent segments are staggered along the strike of the ore body.

[0007] Mining roadways are arranged at the bottom of each of the aforementioned sections along the strike of the ore body. Mining proceeds from bottom to top within the mining roadways to form ore piles.

[0008] The ore pile in the mining area is transported out through the ore extraction roadway.

[0009] The mining areas of each segment are mined sequentially from top to bottom.

[0010] After the mining is completed, the mining area is cemented and backfilled to form a cemented backfill body; the cemented backfill bodies in two adjacent mining areas along the strike direction of the ore body are interlocked and fitted together.

[0011] As a further improvement to the above technical solution, the two adjacent mining sections that are mined simultaneously must be at least one mining section length apart in the direction of the ore body strike, so that the mining sections together form a bench layout.

[0012] As a further improvement to the above technical solution, during the mining process of the latter stope along the strike direction of the ore body, a snap-fit ​​groove is opened on the end face of the cemented backfill body in the former stope that is close to the latter stope.

[0013] As a further improvement to the above technical solution, the snap-fit ​​groove is disposed at the bottom of the adhesive filling body.

[0014] As a further improvement to the above technical solution, the opening height of the locking groove is the same as the height of the ore extraction roadway.

[0015] As a further improvement to the above technical solution, the compressive strength of the lower end of the cemented filler is greater than the compressive strength of the upper end of the cemented filler.

[0016] As a further improvement to the above technical solution, a connecting roadway is provided at the end of the ore extraction roadway, and an inclined ramp is opened. The connecting roadway corresponding to each of the ore extraction roadways is connected to the inclined ramp.

[0017] As a further improvement to the above technical solution, an ore pass is constructed, and the connecting passages corresponding to each of the ore extraction roadways are connected to the ore pass.

[0018] As a further improvement to the above technical solution, when cementing and backfilling the mining area after mining is completed, a backfilling retaining wall is first set between the ore extraction roadway and the mining area, and then cementing and backfilling are carried out.

[0019] As a further improvement to the above technical solution, a remote-controlled loader is used to transport and extract ore in the mining tunnel.

[0020] Compared with related technologies, the advantages of this invention are: The mining method for inclined fractured ore bodies provided in this application, when mining fractured, steeply dipping, thin to medium-thick ore bodies (3–12 m), firstly arranges multiple stopes along the strike direction of the ore body, dividing these stopes into the same panel, thus creating an orderly arrangement of stopes within the same panel along the strike direction. Then, vertically, the ore body within each panel is further divided into multiple segments, each containing several stopes arranged along the strike direction. By staggering the stopes between two adjacent segments along the vertical direction along the strike direction of the ore body, and by performing cemented backfilling after the stopes are mined, and by creating a locking fit between the cemented backfill bodies in two adjacent stopes along the strike direction of the ore body, a reliable connection and support is formed between the cemented backfill bodies in two adjacent stopes within the same segment, ensuring the overall structural stability of the upper segment stopes. Meanwhile, because the stopes between adjacent sections are staggered along the strike direction, the cemented backfill in the previous stope adjacent to the stope to be mined in the lower section along the strike direction forms a reliable support relationship with the cemented backfill in the stope of the upper section due to the positional misalignment. This is equivalent to providing a stable false roof composed of the backfill of the upper section for the stope currently being mined, thereby forming a reliable and stable roof structure for the stope currently being mined. This effectively avoids the risk of collapse caused by excessive exposure of the roof of the fractured ore body and ensures the safety of mining operations.

[0021] Furthermore, by setting up multiple segments along the vertical direction, the cemented backfill bodies of each stope in the previous segment, after being tightly integrated to form a whole, can provide stable and reliable roof support for the ore extraction and other mining operations in the next segment. This ensures that the stopes in the next segment are always protected during the mining process, eliminating the need for inter-segment pillars between the stops. Under this structure, the segments do not interfere with each other. While the previous segment is carrying out mining operations, the next segment can simultaneously carry out stope layout, ore extraction roadway construction, or backfill preparation. Multiple segments can perform the same or different processes simultaneously, achieving parallel progress of various processes within the stope. This effectively improves overall mining efficiency while ensuring mining safety.

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of a mining method for inclined fractured ore bodies according to an embodiment of the present invention; Figure 2 This invention provides a schematic diagram of a mining method for inclined fractured ore bodies according to one embodiment of the present invention from another perspective. Figure 3 This diagram illustrates another perspective of the mining method for an inclined fractured ore body according to one embodiment of the present invention.

[0025] Explanation of key component symbols: 100-Ore body; 110-Mining area; 120-Section; 200-Mining roadway; 210-Ore pile; 300-Cemented backfill; 310-Connecting slot; 320-Backfill retaining wall; 400-Connecting roadway; 410-Inclined ramp; 420-Ore pass; 500-Remote-controlled loader; 600-Medium-deep hole trolley; 610-Medium-deep hole blast hole; 700-Tunneling trolley. Detailed Implementation

[0026] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] Combination Figure 1 , Figure 2 As shown, embodiments of the present invention provide a mining method for inclined, fractured ore bodies, particularly suitable for mining fractured, steeply dipping, thin to medium-thick ore bodies (3–12 m), comprising: S100: Mining area 110 is arranged along the strike direction of ore body 100. The width of mining area 110 is the horizontal thickness of ore body 100, and multiple mining areas 110 are divided into the same panel.

[0032] S200: The ore body 100 where each panel is located is divided into multiple segments 120 along the vertical direction, and the stopes 110 between two adjacent segments 120 are staggered along the direction of the ore body 100.

[0033] S300: Mining roadways 200 are arranged at the bottom of the mining area 110 of each segment 120 along the direction of the ore body 100. The mining roadways 200 are specifically formed by excavation by the tunneling trolley 700. Mining proceeds from bottom to top within the ore extraction roadway 200, forming a ore pile 210; specifically, the ore body 100 is blasted upwards through a medium-deep hole 600 or a medium-deep hole 610 to form the ore pile 210.

[0034] S400: Transport the ore pile 210 in the mining area 110 out of the mine through the ore extraction roadway 200.

[0035] S500: The mining areas 110 of each segment 120 are mined in sequence from top to bottom.

[0036] S600: Cemented backfilling is carried out in the mined-out stope 110 to form cemented backfill body 300; the cemented backfill bodies 300 in two adjacent stopes 110 along the strike direction of the ore body 100 are interlocked.

[0037] The mining method for inclined fractured ore bodies provided in this embodiment first arranges multiple stopes 110 along the strike direction of the ore body 100 when mining fractured steeply inclined thin to medium-thick ore bodies (3-12m), and divides the multiple stopes 110 into the same panel, so that the stopes 110 in the same panel are arranged in an orderly manner in the strike direction; then, in the vertical direction, the ore body 100 in which each panel is located is further divided into multiple segments 120, and each segment 120 contains several stopes 110 arranged along the strike direction. By staggering the stopes 110 between two adjacent vertical segments 120 along the strike direction of the ore body 100, and cementing and backfilling are carried out after the stopes 110 are mined out, cemented backfill bodies 300 are formed. The cemented backfill bodies 300 in two adjacent stopes 110 along the strike direction of the ore body 100 are interlocked, so that the cemented backfill bodies 300 in two adjacent stopes 110 in the same segment 120 are reliably connected and supported, ensuring the overall structural stability of the stopes 110 in the upper segment 120 and preventing them from sliding and collapsing. Meanwhile, since the stopes 110 between adjacent sections 120 are staggered in the strike direction, the cemented backfill 300 in the previous stope 110 adjacent to the stope 110 to be mined in the lower section 120 and the cemented backfill 300 in the stope 110 of the upper section 120 form a reliable support relationship due to the positional misalignment. This is equivalent to providing a stable false roof composed of the backfill of the upper section 120 for the stope 110 currently being mined, thereby forming a reliable and stable roof structure for the stope 110 currently being mined. This effectively avoids the risk of collapse caused by the excessive exposed area of ​​the roof of the broken ore body 100 and ensures the safety of mining operations.

[0038] Furthermore, by setting up multiple segments 120 along the vertical direction, the cemented backfill bodies 300 of each stope 110 in the upper segment 120, after being tightly integrated to form a whole, can provide stable and reliable roof support for the ore extraction and other mining operations in the next segment 120, ensuring that the stope 110 in the lower segment 120 is always protected during the mining process, without the need to install inter-pillars between the mining areas. Under this structure, the segments 120 do not interfere with each other. While the upper segment 120 is carrying out mining operations, the lower segment 120 can simultaneously carry out stope 110 layout, ore extraction roadway construction, or backfill preparation. Multiple segments 120 can carry out the same or different processes at the same time, realizing the parallel advancement of various processes within the stope 110, thereby effectively improving the overall mining efficiency while ensuring mining safety.

[0039] In some embodiments, the stopes 110 of two adjacent segments 120 being mined simultaneously shall be at least one stope 110 length apart in the strike direction of the ore body 100, so that the various stopes 110 together form a bench arrangement; specifically, the stope 110 being mined in the lower segment 120 shall be at least one stope 110 length behind the stope 110 being mined in the upper segment 120. With this stepped arrangement, when the lower section 120 stope 110 is being mined, its top already has a false roof formed by the cemented backfill 300 in the two adjacent stopes 110 of the upper section 120, thus forming the roof of the lower section 120 stope 110. At the same time, the cemented backfill 300 formed by the previous stope 110 in the direction of the ore body 100, which has been mined and cemented, can provide reliable support for the cemented backfill 300 on the top and sides of the current stope 110. Therefore, the current mining stope 110 is protected by cemented backfill 300 on both the top and sides, eliminating the need for additional pillars inside the stope 110 to maintain roof stability. This not only simplifies the layout of the stope 110 and reduces residual ore loss, but also avoids the extra workload and safety risks associated with pillar mining, thereby ensuring the safety of the stope 110 during the mining process and effectively improving mining efficiency.

[0040] In some embodiments, during the mining process of the subsequent stope 110 along the strike direction of the ore body 100, a locking groove 310 is opened on the end face of the cemented backfill 300 in the preceding stope 110 near the subsequent stope 110. Specifically, within the same section 120, cemented backfilling is carried out immediately after the preceding stope 110 is mined. After the backfill solidifies, a stable cemented backfill 300 is formed. During the mining operation of the subsequent stope 110, the working space of the subsequent stope 110 is used to process the end face of the cemented backfill 300 of the preceding stope 110 near the subsequent stope 110, and a locking groove 310 with a certain depth and width is opened on this end face. When the subsequent stope 110 is mined out and cemented backfilling is carried out, some of the backfill grout injected into the subsequent stope 110, while still in a flowing state before it has fully solidified, will naturally flow into the locking groove 310 on the end face of the cemented backfill body 300 in the preceding stope 110. After the backfill grout has completely solidified, the cemented backfill body 300 formed in the subsequent stope 110 and the cemented backfill body 300 in the preceding stope 110 achieve a locking fit through the locking groove 310, forming a mechanical connection at the contact surface. This connection method means that the cemented backfill bodies 300 in adjacent stopes 110 no longer rely solely on friction or their own weight for simple contact, but achieve mechanical interlocking through the locking structure. This effectively reduces the probability of slippage, detachment, or separation between the backfill bodies due to uneven stress or vibration, thereby ensuring the tightness of the connection between each cemented backfill body 300 and the stability of the overall structure.

[0041] In some embodiments, the snap-fit ​​groove 310 is located at the bottom of the cemented backfill 300 to reduce the difficulty of slotting the snap-fit ​​groove 310. Since the snap-fit ​​groove 310 is located at the bottom of the cemented backfill 300, construction workers can work directly on the bottom plate of the stope 110 when slotting the groove 310, without the need for additional high-altitude work platforms or scaffolding, providing ample working space and convenient operation. Furthermore, with the snap-fit ​​groove 310 located at the bottom, the bottom end face of the backfill can be directly processed using the existing drilling or milling tools equipped on the tunneling trolley 700. The excavation of the snap-fit ​​groove 310 can be completed by the robotic arm of the tunneling trolley 700, eliminating the need to purchase additional dedicated slotting equipment and reducing equipment investment costs. In addition, using the tunneling trolley 700 for slotting operations ensures the processing quality and consistency of the snap-fit ​​groove 310, avoiding dimensional deviations that may occur with manual excavation. Therefore, setting the snap-fit ​​groove 310 at the bottom of the cemented filling body 300 not only reduces the difficulty and safety risks of trenching construction, but also enables the trenching process to be seamlessly connected with the daily operation process of the tunneling trolley 700, reducing the time required for process conversion, thereby improving the overall work efficiency of this embodiment.

[0042] In some embodiments, the opening height of the snap-fit ​​groove 310 is the same as the height of the ore extraction roadway 200. The tunneling trolley 700 used to open the ore extraction roadway 200 does not need to adjust its working parameters and can directly slot the cemented filling body 300 to complete the excavation of the snap-fit ​​groove 310, which facilitates further improvement of the overall working efficiency of this embodiment.

[0043] In some embodiments, the compressive strength of the lower end of the cemented backfill 300 is greater than that of the upper end of the cemented backfill 300. Specifically, the bottom of the cemented backfill 300 in the stope 110 needs to withstand the self-weight load of the upper section 120 of the stope 110, the rock pressure, and the blasting vibration during the lower section 120 of the stope. Therefore, its bottom compressive strength is not less than 1 MPa, and the thickness of this part of the backfill is not less than 4 m to ensure sufficient load-bearing capacity and rigidity, so as to effectively resist the pressure transmitted from the upper load without crushing or deformation. The top of the cemented backfill 300 mainly serves to cover and close the stope 110, and the external load it bears is relatively small. Therefore, its uniaxial compressive strength of not less than 0.5 MPa is sufficient to meet the requirements. This gradient compressive strength design, characterized by high bottom strength and relatively low top strength, serves two purposes. First, it ensures that the bottom of the cemented backfill 300 provides reliable support strength for the mining operations of the upper stope 110, guaranteeing the roof stability of the lower section 120 stope 110 during the mining process. Second, because the bottom backfill and the backfill of the adjacent stope 110 are connected by a snap-fit ​​groove 310, the high bottom compressive strength ensures that the snap-fit ​​structure will not fail due to local crushing when under stress. This ensures the fit strength between each cemented backfill 300 and the overall support strength, effectively improving the reliability and safety of the stope 110 roof structure.

[0044] like Figure 3 As shown, in some embodiments, a connecting roadway 400 is connected to the end of the ore extraction roadway 200, and an inclined ramp 410 is constructed. Each connecting roadway 400 corresponding to an ore extraction roadway 200 is connected to the inclined ramp 410. This allows ore that has collapsed within each stope 110 to be transported first through the ore extraction roadway 200 to the connecting roadway 400, then collected in the inclined ramp 410, and finally transported uniformly to the surface or a designated ore transfer point along the inclined ramp 410. By setting up an ore transportation network with connecting roads 400 and inclined ramps 410, ore within each ore extraction roadway 200 does not need to be transported out through independent channels individually. Instead, multiple routes converge at the connecting roadway 400, reducing the number of transportation channels and the land area occupied. Simultaneously, the inclined ramp 410 facilitates continuous transportation along the slope using trackless transport vehicles or conveyor belts, avoiding frequent loading, unloading, and transfer processes, thereby improving ore transportation efficiency and reducing transportation costs and operating time.

[0045] In some embodiments, an ore pass 420 is constructed, and the connecting passages 400 corresponding to each mining roadway 200 are connected to the ore pass 420. This allows ore from each stope 110 to be collected in the ore pass 420 via the connecting passages 400 after being transported out, and the ore is rapidly lowered using the weight difference of the ore pass 420. Compared to the inclined ramp 410 transportation method, the ore pass 420 has a simpler structure, lower maintenance costs, and can utilize the ore's own gravity to achieve continuous and efficient vertical or large-angle transportation, making it particularly suitable for working conditions where the ore body 100 has a large dip angle or a large elevation difference. By uniformly connecting the connecting passages 400 of multiple mining roadways 200 to the ore pass 420, centralized unloading of multiple ore routes is achieved, avoiding the resource waste and management complexity caused by independently setting up transportation channels for each stope 110, thereby further improving the overall transportation efficiency of ore from the stope 110 to the surface.

[0046] In some embodiments, when performing cemented backfilling on the mined stope 110, a backfilling retaining wall 320 is first installed between the ore extraction roadway 200 and the stope 110 to block and isolate the connection between the ore extraction roadway 200 and the stope 110, preventing the subsequent injected backfilling slurry from flowing out of the ore extraction roadway 200 and ensuring that all the backfilling slurry can remain inside the stope 110. After the backfilling retaining wall 320 is installed, cemented backfilling material is injected into the stope 110 from the bottom or a reserved backfilling port, so that the backfilling slurry gradually fills the entire space of the stope 110 from bottom to top until it is in complete contact with the roof of the stope 110. By first setting up the infill retaining wall 320 and then carrying out the cemented backfilling, the flow direction and filling range of the backfill slurry can be effectively controlled, preventing the slurry from leaking from the end of the ore exit roadway 200 and causing backfilling voids in the top of stope 110. This ensures that the backfilling coverage rate in stope 110 meets the design requirements, guarantees full and tight contact between the top of stope 110 and cemented backfill 300, and ensures the overall formation quality and structural integrity of cemented backfill 300 in stope 110, enabling it to effectively play the role of false roof support and connection between adjacent stopes 110.

[0047] In some embodiments, a remote-controlled loader 500 is used within the ore extraction roadway 200 to load, transfer, and transport collapsed ore, completely replacing the traditional manual ore extraction work mode of entering the stope 110. Specifically, the remote-controlled loader 500 operates from a safe area away from the stope 110, with precise control over its route, loading actions, and steering via a remote control system. This allows it to autonomously collect and transport ore within the ore extraction roadway 200, without requiring operators to enter the stope 110 or work in hazardous environments such as below the roof. Using a remote-controlled loader 500 for ore extraction not only fundamentally eliminates the safety risks faced by personnel in the 110 mined area of ​​the 100 crushed ore body due to factors such as roof exposure, spalling, or blasting debris, but also reduces reliance on manual labor, lowers personnel management difficulty and labor costs. At the same time, the remote-controlled loader 500 has continuous operation capability, and its loading and transportation efficiency is high, which can match the operation rhythm of upward medium-deep hole blasting ore extraction, avoiding process waiting caused by low efficiency of manual ore extraction. Thus, while ensuring personnel safety during the ore extraction process, it effectively improves the overall ore extraction efficiency.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A mining method for inclined and fractured ore bodies, characterized in that, include: Mining areas (110) are arranged along the strike direction of the ore body (100), and multiple mining areas (110) are divided into the same panel. The ore body (100) where each panel is located is divided into multiple segments (120) along the vertical direction, and the stopes (110) between two adjacent segments (120) are staggered along the strike direction of the ore body (100); Mining roadways (200) are arranged at the bottom of the mining area (110) of each segment (120) along the direction of the ore body (100). Mining is carried out from bottom to top in the mining roadways (200) to form ore piles (210). The ore pile (210) in the mining area (110) is transported out through the ore extraction roadway (200); The mining areas (110) of each segment (120) are mined sequentially from top to bottom; After the mining is completed, the mining area (110) is cemented and backfilled to form a cemented backfill body (300); the cemented backfill bodies (300) in two adjacent mining areas (110) along the strike direction of the ore body (100) are interlocked and fitted together.

2. The mining method for inclined fractured ore bodies according to claim 1, characterized in that, The mining areas (110) of two adjacent sections (120) being mined simultaneously must be at least one mining area (110) apart in the direction of the ore body (100) so that each mining area (110) can form a bench layout.

3. The mining method for inclined fractured ore bodies according to claim 1, characterized in that, During the mining process, a snap-fit ​​groove (310) is opened on the end face of the cemented backfill (300) in the previous stope (110) near the next stope (110) in the subsequent stope (100).

4. The mining method for inclined fractured ore bodies according to claim 3, characterized in that, The snap-fit ​​groove (310) is located at the bottom of the adhesive filler (300).

5. The mining method for inclined fractured ore bodies according to claim 4, characterized in that, The opening height of the card slot (310) is the same as the height of the ore extraction roadway (200).

6. The mining method for inclined fractured ore bodies according to claim 4, characterized in that, The compressive strength of the lower end of the cemented filler (300) is greater than the compressive strength of the upper end of the cemented filler (300).

7. The mining method for inclined fractured ore bodies according to claim 1, characterized in that, The tail end of the mining roadway (200) is connected to a connecting roadway (400) and a ramp (410) is provided. The connecting roadway (400) corresponding to each mining roadway (200) is connected to the ramp (410).

8. The mining method for inclined fractured ore bodies according to claim 7, characterized in that, An ore pass (420) is constructed, and the connecting passage (400) corresponding to each of the ore extraction roadways (200) is connected to the ore pass (420).

9. The mining method for inclined fractured ore bodies according to claim 8, characterized in that, When cementing and backfilling the mining area (110) after mining is completed, a backfilling retaining wall (320) is first set between the mining roadway (200) and the mining area (110), and then cementing and backfilling are carried out.

10. The mining method for inclined fractured ore bodies according to any one of claims 1 to 9, characterized in that, The ore is transported out of the mining roadway (200) using a remote-controlled loader (500).

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