Mining methods

Abstract

The mining method of the present invention comprises the following steps: S1, dividing the ore body into a disk area, and dividing the disk area into multiple segments along the up-down direction; S2, dividing each layer of segment into a plurality of first stopes and a plurality of second stopes along the first horizontal direction, the first stopes and the second stopes in the disk area are alternately arranged in the first horizontal direction and the up-down direction, wherein the cross section of the first stope perpendicular to the second horizontal direction is the first cross section, and the cross section of the second stope perpendicular to the second horizontal direction is the second cross section, the length of the first cross section in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end; S3, after mining and filling the first stope located at the lower side in the adjacent two layers of segments, mining and filling the second stope located at the lower side in the adjacent two layers of segments and the first stope located at the upper side in the adjacent two layers of segments. The mining method of the present invention has the advantages of high mining efficiency and strong safety.

Description

Technical Field

[0001] The invention relates to the technical field of mining, and in particular to a mining method. Background Art

[0002] When mining an ore body with an unstable roof, the backfill mining method in the related art is the downward approach cemented backfill mining method. The mining order of this mining method is to advance from top to bottom layer by layer (about 4m high). After each approach is mined, backfilling is carried out. The workers are always working under the cemented backfill body, which can effectively improve the safety of the operation. In this mining method, each layer needs to be connected to the ore body by digging a layered connecting road. The mining height of each layer is small, and the amount of backfilled ore in a single cycle is small, resulting in a small production capacity. In addition, each layer needs to lay steel bars and set up a filling skylight when filling, and high-strength filling slurry needs to be used, which also leads to high filling costs and complicated filling procedures. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, an embodiment of the present invention provides a mining method.

[0004] The mining method of the embodiment of the present invention comprises the following steps:

[0005] S1, dividing the ore body into panels, and dividing the panels into multiple layers along the vertical direction;

[0006] S2, dividing each layer of the segment into a plurality of first stopes and a plurality of second stopes along the first horizontal direction, the first stopes and the second stopes in the panel area are alternately arranged in the first horizontal direction and the up-down direction, wherein the cross section of the first stope perpendicular to the second horizontal direction is the first cross section, and the cross section of the second stope perpendicular to the second horizontal direction is the second cross section, any two of the up-down direction, the first horizontal direction and the second horizontal direction are perpendicular to each other, the length of the first cross section in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end;

[0007] S3. After mining and filling the first stope located at the bottom of the two adjacent layers of the segment, mining and filling are performed on the second stope located at the bottom of the two adjacent layers of the segment and the first stope located at the top of the two adjacent layers of the segment.

[0008] Therefore, the mining method according to the embodiment of the present invention has the advantages of high recovery efficiency and strong safety.

[0009] In some embodiments, in step S3, the first stope is filled with a first filling slurry, and the second stope is filled with a second filling slurry, and the strength of the second filling slurry is less than the strength of the first filling slurry.

[0010] In some embodiments, the second filling slurry is at least one of a non-cementitious filling slurry or a low-strength cementitious filling slurry, and the first filling slurry is at least one of a high-strength cementitious filling slurry and a medium-strength cementitious filling slurry.

[0011] In some embodiments, in step S3, after the second mining area located at the bottom of two adjacent layers of the segments and the first mining area located at the top of two adjacent layers of the segments are mined simultaneously, the second mining area located at the bottom of two adjacent layers of the segments and the second mining area located at the top of two adjacent layers of the segments are filled.

[0012] In some embodiments, in step S3,

[0013] Arranging a rock drilling tunnel extending along the second horizontal direction in the second stope located at the lower side of the two adjacent layers of the segments, wherein the rock drilling tunnel is located at the bottom of the second stope;

[0014] Arranging a cutting rise in the ore body as a blasting free space for the first stope and the second stope, the cutting rise passing through the second stope located at the lower side of two adjacent layers of the segments and the first stope located at the upper side of two adjacent layers of the segments;

[0015] Fan-shaped blast holes are drilled in the second mining area located at the bottom of the two adjacent layers of the segments and in the first mining area located at the top of the two adjacent layers of the segments, and explosives are loaded in the fan-shaped blast holes in the second mining area and the first mining area, and lateral blasting is carried out in batches.

[0016] In some embodiments, in step S3, the first mining area located below two adjacent layers of the segments is drilled from the rock drilling tunnel located above two adjacent layers of the segments, and the second mining area located below two adjacent layers of the segments and the first mining area located above two adjacent layers of the segments are simultaneously subjected to staged lateral blasting.

[0017] In some embodiments, a segmented tunnel extending in a first horizontal direction is arranged outside the ore body vein;

[0018] Excavating a layered connecting road along the second horizontal direction in the segmented roadway;

[0019] Excavating a mine exit tunnel along the first horizontal direction in the layered contact tunnel;

[0020] A rock drilling tunnel is excavated along the second horizontal direction in the mining tunnel.

[0021] The mining method of the embodiment of the present invention also includes: using at least one of high-strength cementitious filling slurry and medium-strength cementitious filling slurry to fill the mining tunnel, the first horizontal direction is one of the ore body strike and the ore body dip, and the second horizontal direction is the other of the ore body strike and the ore body dip.

[0022] In some embodiments, the outer peripheral contour of the first cross section and the outer peripheral contour of the second cross section are both trapezoidal.

[0023] In some embodiments, the ore body is a vertical ore body or an inclined ore body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the mining method according to an embodiment of the present invention when returning to the quarry.

[0025] Figure 2 It is a top view of the mining method according to an embodiment of the present invention when the mining body is mined.

[0026] Figure 3 1 is another top view of the mining method according to an embodiment of the present invention when returning to the quarry.

[0027] Figure 4 It is a side view of a mining method according to an embodiment of the present invention when recovering an inclined ore body.

[0028] Figure 5 It is a side view of a vertical ore body being mined according to a mining method according to an embodiment of the present invention.

[0029] Reference numerals:

[0030] The first mining area 1, the second mining area 2, the cutting shaft 3, the segmented tunnel 4, the layered connecting tunnel 5, the mine exit tunnel 6, the rock drilling tunnel 7, the chute 8, and the fan-shaped blast hole 9. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] The mining method according to the embodiment of the present invention is described below with reference to the accompanying drawings. Figures 1 to 5 As shown, the mining method according to the embodiment of the present invention comprises the following steps

[0033] S1. Divide the ore body into panels, and divide the panels into multiple layers along the vertical direction.

[0034] S2. Divide each layer into multiple first stopes 1 and multiple second stopes 2 along the first horizontal direction. The first stopes 1 and the second stopes 2 in the panel area are alternately arranged in the first horizontal direction and the up-down direction. The cross section of the first stope 1 perpendicular to the second horizontal direction is the first cross section, and the cross section of the second stope 2 perpendicular to the second horizontal direction is the second cross section. Any two of the up-down direction, the first horizontal direction, and the second horizontal direction are perpendicular to each other. The length of the first cross section in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end.

[0035] S3. After the first stope 1 located at the bottom of two adjacent layers is mined and filled, the second stope 2 located at the bottom of two adjacent layers and the first stope 1 located at the top of two adjacent layers are mined and filled.

[0036] According to the mining method of the embodiment of the present invention, each layer segment is divided into a plurality of first stopes 1 and a plurality of second stopes 2 along the first horizontal direction, and the first stopes 1 and the second stopes 2 in the panel area are alternately arranged in the first horizontal direction and the vertical direction. That is, in each layer segment, the stopes on both sides of the first stope 1 in the first horizontal direction are all the second stopes 2, and the stopes on both sides of the second stope 2 in the first horizontal direction are all the first stopes 1; for multi-layer segments, the stopes on both sides of the first stope 1 in the vertical direction are all the second stopes 2, and the stopes on both sides of the second stope 2 in the vertical direction are all the first stopes 1.

[0037] In step S3, first, the first stope 1 located at the bottom of the two adjacent layers is mined and filled, and then the second stope 2 in the layer segment and the first stope 1 of the upper layer are mined and filled. In other words, after a part of the lower layer segment is mined (the first stope 1) and filled, the remaining part of the layer segment and a part of the upper layer segment are mined and filled. In this way, the exposed area of ​​the ore body roof can be reduced during mining, thereby increasing the safety during mining. Mining from bottom to top does not require the laying of bottom steel bars, which simplifies the filling operation process and reduces the workload, thereby improving the mining efficiency.

[0038] The length of the first cross section of the first stope 1 in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end. That is, the ore body at the lower part of the first stope 1 is larger than the ore body at the upper part of the first stope 1, and the ore body at the lower part of the second stope 2 is smaller than the ore body at the upper part of the second stope 2. Mining the first stope 1 in the segment first can make the upper ore body of the unmined second stope 2 in the segment more and the lower ore body less, so that the ore body in the second stope 2 is not easy to break, and the area of ​​the exposed ore body roof (the roof of the first stope 1) in the segment can be small. After filling the first stope 1, the filling in the first stope 1 can support the second stope 2, so that mining is safer.

[0039] Therefore, the mining method according to the embodiment of the present invention has the advantages of high recovery efficiency and strong safety.

[0040] like Figures 1 to 5 As shown, the mining method according to the embodiment of the present invention includes step S1, step S2 and step S3.

[0041] In step S1, the ore body is divided into panels, and the panels are divided into multiple layers of segments along the up and down directions. Specifically, the ore body can be divided into panels along the first horizontal direction and / or the second horizontal direction (ore body strike and / or ore body inclination), and production can be organized in the form of panels, with each panel being an independent mining unit. Mining is carried out in a bottom-up order within the panel. The segment height is generally 30m to 40m. Each layer of segmentation is divided into several stopes along the first horizontal direction, and the length direction of the stope is the second horizontal direction. Any two of the up and down directions, the first horizontal direction, and the second horizontal direction are perpendicular to each other. The first horizontal direction can be the left-right direction, and the second horizontal direction can be the front-back direction, and the left-right direction, the front-back direction, and the up and down direction are shown by the arrows in the figure. For example, the ore body is divided into panels along the left-right direction, and several stopes are divided in each layer of segmentation along the left-right direction.

[0042] In some embodiments, the first horizontal direction is one of the ore body strike and the ore body dip, and the second horizontal direction is the other of the ore body strike and the ore body dip. For example, the first horizontal direction is the ore body strike (left-right direction), and the second horizontal direction is the ore body dip (front-back direction).

[0043] like Figure 4 and Figure 5 As shown, in some embodiments, the ore body is a vertical ore body or an inclined ore body. That is, the mining method according to the embodiment of the present invention has strong applicability and can be used for both vertical ore bodies and inclined ore bodies.

[0044] S2. Each layer is segmented into a plurality of first stopes 1 and a plurality of second stopes 2 along the first horizontal direction. The first stopes 1 and the second stopes 2 in the panel area are alternately arranged in the first horizontal direction and in the up-down direction. The cross section of the first stope 1 perpendicular to the second horizontal direction is the first cross section, and the cross section of the second stope 2 perpendicular to the second horizontal direction is the second cross section. The length of the first cross section in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end.

[0045] Specifically, the left and right sides and the upper and lower sides of the first stope 1 are both the second stope 2, and the left and right sides and the upper and lower sides of the second stope 2 are both the first stope 1. The shapes of the first stope 1 and the second stope 2 are adapted so that the sides of the first stope 1 and the sides of the second stope 2 fit together. In the first horizontal direction, the length of the upper edge of the first section is equal to the length of the lower edge of the second section, and the length of the lower edge of the first section is equal to the length of the upper edge of the second section. The upper end surface of the first stope 1 is connected to the lower end surface of the second stope 2 above it, and the upper end surface of the second stope 2 is connected to the lower end surface of the first stope 1 above it. For example, the first stope 1 and the second stope 2 in the panel area are alternately arranged in the left and right directions and the up and down directions, the length direction of the first stope 1 and the length direction of the second stope 2 are both the front-to-back direction, and the first section and the second section are both perpendicular to the front-to-back direction. In the left and right direction, the upper edge of the first section is 10m long, and the lower edge of the first section is 15m long.

[0046] like Figure 1 As shown, in some embodiments, the outer contour of the first cross section and the outer contour of the second cross section are both trapezoidal. Specifically, the lower edge of the first cross section is the lower base of the trapezoid, and the upper edge of the first cross section is the upper base of the trapezoid. The upper edge of the second cross section is the lower base of the trapezoid, and the lower edge of the second cross section is the upper base of the trapezoid. As a result, the amount of ore in the upper part of the second stope 2 can be greater than the amount of ore in the lower part of the second stope 2. For example, the first cross section is symmetrically arranged with the second cross section above it.

[0047] like Figures 1 to 5 As shown, in step S3, a segmented tunnel 4 extending in the first horizontal direction is arranged outside the vein of the ore body. Specifically, a segmented tunnel 4 is arranged outside the vein of the footwall of the ore body, and each layer of the segment has a segmented tunnel 4 that matches it, and each segmented tunnel 4 is connected by a ramp. A layered connecting tunnel 5 is excavated in the segmented tunnel 4 along the second horizontal direction. Thus, the layered connecting tunnel 5 can connect the segmented tunnel 4 and the chute 8, and the layered connecting tunnel 5 can reach each segment of the ore body. So that the layered connecting tunnel 5 can be used as a connecting tunnel for rock drilling and ore extraction.

[0048] A mining tunnel 6 is excavated along the first horizontal direction in the layered connecting road 5. The ore of each mining field can be transported out from the mining tunnel 6 of this section, and the mining tunnel 6 above the mining field can be used as a filling tunnel. A rock drilling tunnel 7 is excavated along the second horizontal direction in the mining tunnel 6. The length direction of the rock drilling tunnel 7 is consistent with the length direction of the mining field, and the size of the rock drilling tunnel 7 in the first horizontal direction is not greater than the size of the mining field (the first mining field 1 and the second mining field 2) in the first horizontal direction. The rock drilling tunnel 7 above the mining field is used as the filling of this mining field, and after the filling is completed, it can be used as the rock drilling tunnel of the mining field above the mining field.

[0049] For example, a segmented tunnel 4 extending in the left-right direction is arranged outside the ore body vein. A layered connecting tunnel 5 is excavated in the front-back direction in the segmented tunnel 4. A mine exit tunnel 6 is excavated in the left-right direction in the layered connecting tunnel 5, and a mine exit tunnel 6 is provided on both the front and back sides of the mining area. A rock drilling tunnel 7 is excavated in the mine exit tunnel 6 in the front-back direction.

[0050] like Figure 1 As shown, in step S3, after the first stope 1 located at the bottom in the adjacent two-layer segment is mined and filled, the second stope 2 located at the bottom in the adjacent two-layer segment and the first stope 1 located at the top in the adjacent two-layer segment are mined and filled. The first stope 1 in the segment is mined first, and the second stope 2 that has not been mined in the segment has more upper ore bodies and less lower ore bodies, so that the ore bodies in the second stope 2 are not easy to break, and the area of ​​the exposed ore body roof (the roof of the first stope 1) in the segment can be small. After the first stope 1 is filled, the filling in the first stope 1 can support the second stope 2, so that the mining is safer. For example, when the lowest segment is mined, the first stope 1 in the lowest segment is mined first.

[0051] like Figure 1 As shown, in some embodiments, in step S3, after the second stope 2 located at the bottom in the adjacent two-layer segment and the first stope 1 located at the top in the adjacent two-layer segment are mined at the same time, the second stope 2 located at the bottom in the adjacent two-layer segment and the second stope 2 located at the top in the adjacent two-layer segment are filled. In other words, the second stope 2 located at the bottom in the adjacent two-layer segment and the first stope 1 located at the top in the adjacent two-layer segment can be mined at the same time, and the simultaneous mining of the second stope 2 in the lower segment and the first stope 1 in the adjacent upper segment can reduce the construction steps of mining, thereby improving the efficiency of mining. And it can make the exposed area of ​​the ore body roof small, thereby improving the efficiency of mining.

[0052] In step S3, the first stope 1 is filled with the first filling slurry, and the second stope 2 is filled with the second filling slurry, and the strength of the second filling slurry is less than the strength of the first filling slurry. Specifically, the second filling slurry is at least one of a non-cemented filling slurry or a low-strength cemented filling slurry, and the first filling slurry is at least one of a high-strength cemented filling slurry and a medium-strength cemented filling slurry. After the first stope 1 is mined, the first filling slurry with a relatively high strength is used to fill the first stope 1, so that the first filling body after the solidification of the first filling slurry has a relatively large supporting force, so that the first filling body can support the ore body roof of the first stope 1 and the ore body of the second stope 2, and can prevent the first filling body from being damaged when the second stope 2 between the two first filling bodies is mined. After the second stope 2 is mined, there are already first filling bodies with relatively high strength on both sides of the second stope 2, so that the second stope 2 can be filled with a second filling slurry with relatively low strength and relatively low cost. This can reduce the mining cost.

[0053] like Figure 1 As shown, in some embodiments, in step S3, a rock drilling tunnel 7 extending along the second horizontal direction is arranged in the second stope 2 located at the lower side in two adjacent layers, and the rock drilling tunnel 7 is located at the bottom of the second stope 2. That is, the rock drilling tunnel 7 is arranged at the bottom of the second stope 2, and the size of the rock drilling tunnel 7 in the first horizontal direction is not greater than the size of the second stope 2 in the first horizontal direction.

[0054] like Figure 1 As shown, a cutting rise 3 is arranged in the ore body as a blasting free space for the first stope 1 and the second stope 2, and the cutting rise 3 runs through the second stope 2 located at the bottom in the two adjacent layers of segments and the first stope 1 located at the top in the two adjacent layers of segments. Specifically, the cutting rise 3 extends in the up-down direction and is located at the center of the first stope 1 and the second stope 2. The cutting rise 3 runs through the first stope 1 and the second stope 2 adjacent in the up-down direction to reduce the construction workload. The cutting rise 3 is connected to the rock drilling tunnel 7, and the cutting rise 3 is a circular through hole or a rectangular through hole.

[0055] Drill fan-shaped blast holes 9 in the second stope 2 located below in the adjacent two-layer segmentation and in the first stope 1 located above in the adjacent two-layer segmentation, charge the fan-shaped blast holes 9 in the second stope 2 and the first stope 1, and perform lateral blasting in batches. Specifically, drill fan-shaped blast holes 9 (upward fan-shaped blast holes) dispersed upward in the rock drilling tunnel 7 below the second stope 2, and drill fan-shaped blast holes 9 (downward fan-shaped blast holes) dispersed downward in the rock drilling tunnel 7 above the first stope 1. After charging in the fan-shaped blast holes 9, blasting is performed in batches and from the blast holes adjacent to the cutting shaft 3. For example, each row of blast holes is arranged in parallel, the diameter of the blast holes is φ65mm~φ90mm, the row spacing is 1.8m~2.5m, and the distance from the bottom of the hole is 1.8m~2.5m. After the rock drilling in each stope is completed, the ore is laterally collapsed with the cutting groove as the free surface, and 2-3 rows are blasted each time.

[0056] In some embodiments, the first stope 1 located at the lower part of the adjacent two-layer segment is drilled from the upper rock drilling tunnel 7 in the adjacent two-layer segment, and the second stope 2 located at the lower part of the adjacent two-layer segment and the first stope 1 located at the upper part of the adjacent two-layer segment are blasted laterally in stages at the same time. Blasting the second stope 2 located at the lower part of the adjacent two-layer segment and the first stope 1 located at the upper part of the adjacent two-layer segment at the same time can improve the recovery efficiency.

[0057] In some embodiments, at least one of high-strength cementitious filling slurry and medium-strength cementitious filling slurry is used to fill the mining tunnel 6. Specifically, after the mining of the stope in this section is completed, at least one of high-strength cementitious filling slurry and medium-strength cementitious filling slurry is used to fill the mining tunnel 6 of this section. During the filling process of the mining tunnel 6, the gap of the rock drilling tunnel 7 can be filled, so that the mining of the ore body can be made safer.

[0058] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A mining method, characterized in that: The following steps are involved: S1, dividing the ore body into panels, and dividing the panels into multiple layers along the vertical direction; S2, dividing each layer of the segment into a plurality of first stopes and a plurality of second stopes along the first horizontal direction, the first stopes and the second stopes in the panel area are alternately arranged in the first horizontal direction and the up-down direction, wherein the cross section of the first stope perpendicular to the second horizontal direction is the first cross section, and the cross section of the second stope perpendicular to the second horizontal direction is the second cross section, any two of the up-down direction, the first horizontal direction and the second horizontal direction are perpendicular to each other, the length of the first cross section in the first horizontal direction decreases from its lower end to its upper end, and the length of the second cross section in the first horizontal direction increases from its lower end to its upper end; S3. After mining and filling the first stope located at the bottom of the two adjacent layers of the segment, mining and filling are performed on the second stope located at the bottom of the two adjacent layers of the segment and the first stope located at the top of the two adjacent layers of the segment.

2. The mining method according to claim 1, characterized in that: In step S3, the first stope is filled with a first filling slurry, and the second stope is filled with a second filling slurry, wherein the strength of the second filling slurry is less than the strength of the first filling slurry.

3. The mining method according to claim 2, characterized in that: The second filling slurry is at least one of a non-cementitious filling slurry or a low-strength cementitious filling slurry, and the first filling slurry is at least one of a high-strength cementitious filling slurry and a medium-strength cementitious filling slurry.

4. The mining method according to claim 1, characterized in that: In step S3, after the second mining area located at the bottom of the two adjacent layers of the segments and the first mining area located at the top of the two adjacent layers of the segments are mined simultaneously, the second mining area located at the bottom of the two adjacent layers of the segments and the first mining area located at the top of the two adjacent layers of the segments are filled.

5. The mining method according to claim 4, characterized in that: In step S3, Arranging a rock drilling tunnel extending along the second horizontal direction in the second stope located at the lower side of the two adjacent layers of the segments, wherein the rock drilling tunnel is located at the bottom of the second stope; Arranging a cutting rise in the ore body as a blasting free space for the first stope and the second stope, the cutting rise passing through the second stope located at the lower side of two adjacent layers of the segments and the first stope located at the upper side of two adjacent layers of the segments; Fan-shaped blast holes are drilled in the second mining area located at the bottom of the two adjacent layers of the segments and in the first mining area located at the top of the two adjacent layers of the segments, and explosives are loaded in the fan-shaped blast holes in the second mining area and the first mining area, and lateral blasting is carried out in batches.

6. The mining method according to claim 5, characterized in that: In step S3, the first stope located at the lower part of the two adjacent layers of the segments is drilled from the drilling tunnel located at the upper part of the two adjacent layers of the segments, and the second stope located at the lower part of the two adjacent layers of the segments and the first stope located at the upper part of the two adjacent layers of the segments are simultaneously subjected to staged lateral blasting.

7. The mining method according to claim 5, characterized in that: Arrange a segmented tunnel extending along a first horizontal direction outside the ore body vein; Excavating a layered connecting road along the second horizontal direction in the segmented roadway; Excavating a mine exit tunnel along the first horizontal direction in the layered contact tunnel; A rock drilling tunnel is excavated along the second horizontal direction in the mining tunnel.

8. The mining method according to claim 7, characterized in that: Also includes: The mining tunnel is filled with at least one of high-strength cementitious filling slurry and medium-strength cementitious filling slurry, the first horizontal direction is one of the ore body strike and the ore body dip, and the second horizontal direction is the other of the ore body strike and the ore body dip.

9. The mining method according to claim 1, characterized in that: The outer peripheral contour of the first cross section and the outer peripheral contour of the second cross section are both trapezoidal.

10. The mining method according to claim 1, characterized in that: The ore body is a vertical ore body or an inclined ore body.

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