Highly-segmented refined cooperative control mining method for steeply-inclined thin vein

Abstract

The invention relates to a high-staged refined cooperative control mining method for a steeply inclined thin vein, which comprises the following steps of: finely determining the drilling rotating speed range of rock drilling equipment in an ore body and a surrounding rock and the relationship between different drilling angles and drilling rotating speeds in the ore body by performing rock drilling parameter test research on the target engineering ore body and the surrounding rock; the cutting raise is tunneled, and stoping is conducted towards one side along the ore body; a target mining middle section ore body is divided into an upper section ore body and a lower section ore body, rock drilling equipment is adopted for arranging upward parallel holes in an in-vein roadway, and in the rock drilling process, the arrangement of the parallel holes is dynamically adjusted according to rotating speed parameters determined in the early stage and real-time data fed back by the rock drilling equipment; the hole distribution directions and positions of boundary holes and internal holes are finely controlled, upward parallel hole blasting ore removal is carried out on the upper sublevel ore body and the lower sublevel ore body, caving of waste rocks is reduced, and the blasting dilution rate is reduced.

Description

Technical Field

[0001] The present invention relates to a steeply inclined thin ore vein mining technology, in particular to a steeply inclined thin ore vein high-segment refined collaborative control mining method. Background Art

[0002] Steeply inclined, thin ore bodies typically refer to those with an inclination greater than 50° and a thickness less than 5m. Currently, the main mining methods used for steeply inclined, thin vein ore bodies include upward horizontal layered dry filling, wall cutting, and shallow hole ore retention. These mining methods present challenges for steeply inclined, thin vein ore bodies, such as low mining efficiency, high dilution rates, large amounts of overexplosion, high mining costs, and workers being directly exposed to the stope roof, leading to significant safety risks. Furthermore, as shallow ore resources gradually deplete and mining depths increase, steeply inclined, thin ore bodies are becoming smaller and thinner. Because ore body angles and strikes vary slightly, these subtle changes can significantly impact the ore body boundary. Existing mining methods are prone to excessive waste rock blasting during blasting, leading to increased dilution rates and the inability to achieve precise mining control. Summary of the Invention

[0003] The purpose of the present invention is to provide a method for highly segmented and refined collaborative control mining of steeply inclined thin veins, so as to solve the problem that conventional mining methods in the prior art cannot achieve safe, efficient and refined controlled mining of steeply inclined thin vein ore bodies.

[0004] The present invention is achieved as follows: a method for highly segmented and refined collaborative control mining of steeply inclined thin ore veins, comprising the following steps.

[0005] S1. Use on-site rock drilling equipment to test the drilling parameters of the target project's ore body and surrounding rock, and obtain the drilling speed range of the rock drilling equipment operating in the ore body and surrounding rock under drilling pressure, as well as the fitting relationship between the drilling speed and drilling angle of the rock drilling equipment operating in the ore body.

[0006] S2. Divide multiple ore blocks along the strike of the ore body, set up spacers between two adjacent ore blocks, divide different mine rooms in the strike direction of the ore body by the spacers, and divide different middle sections of the ore body in the height direction of the ore body by top pillars; arrange segmented rock drilling lanes on the middle section of the ore body to divide the middle section of the ore body into an upper segmented ore body and a lower segmented ore body; arrange a cutting shaft at one end of the ore block.

[0007] S3. Use the cut shaft as the free surface for backward blasting to drop the ore.

[0008] S31. Arrange upward parallel holes in the segmented rock drilling tunnels and the middle ore body exit tunnels along the inclined direction of the ore body. The upward parallel holes are high-segmented medium-deep holes. The upward parallel holes include boundary holes and internal holes. During the rock drilling hole arrangement process, according to the drilling speed range of the rock drilling equipment operating in the ore body and surrounding rock under the drilling pressure determined in step S1 and the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body, combined with the real-time feedback of the speed during the operation of the rock drilling equipment, the orientation of the upward parallel holes is dynamically adjusted in real time to achieve parallel hole arrangement.

[0009] S32. Blast out the upper and lower ore bodies.

[0010] S4. After the mining is completed, the goaf will be filled.

[0011] In step S31, an upward parallel hole is drilled with the drilling pressure determined in step S1, and the upward parallel hole is controlled in two directions: the front-back direction and the left-right direction. The strike direction of the ore body is the front-back direction, and the two sides of the ore body are the left-right direction.

[0012] When drilling a boundary hole, the drill head's current position is determined based on the drilling speed range of the rock drill under drilling pressure in the ore body and surrounding rock, combined with the real-time collected drilling speed. If the drill head is located within the ore body, the left and right direction remains unchanged. If the drill head deviates into the surrounding rock, the left and right angles of the drill head are adjusted until the drill head is located within the ore body. At the same time, under the premise that the drill bit is located inside the ore body, according to the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed. The theoretical actual drilling speed is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle is deflected in the front-to-back direction, and the drilling angle is adjusted in the front-to-back dimension.

[0013] When drilling internal holes, the rock drilling equipment drills at an angle parallel to the boundary hole. Based on the fitting relationship between the drilling speed and drilling angle of the rock drilling equipment operating in the ore body, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed. The theoretical actual drilling speed is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle is deflected in the front-to-back direction, and the drilling angle is adjusted in the front-to-back dimension.

[0014] In step S32, the upper segmented ore body and the lower segmented ore body are blasted out, and the upper segmented ore body is blasted a distance ahead of the lower segmented ore body; after the blasting, collapsed ore is generated, and two stepped upper and lower production working faces are formed on one side within the range of the middle segmented ore body.

[0015] The upward parallel holes are arranged in a plum blossom pattern, and the openings of the upward parallel holes are located on the inner wall of the rock drilling tunnel within the vein.

[0016] The diameter of the upward parallel holes is 51 mm to 89 mm, the row spacing between adjacent upward parallel holes is 1 to 2 m, the hole spacing is 1 to 1.5 m, and the hole bottom spacing is 1 to 1.5 m.

[0017] In step S2, a mine-out tunnel of the upper middle section ore body is provided on the upper part of the middle section ore body, a filling through vein and a mine-out through vein are arranged at the top and bottom of the middle section ore body respectively, a plurality of filling wells are evenly arranged on the top pillar at the top of the middle section ore body, and a mine-out tunnel of the middle section ore body is arranged along the strike of the ore body in the lower wall surrounding rock at the bottom of the middle section ore body; wherein, the mine-out tunnel of the middle section ore body is connected with the mine-out through vein.

[0018] In step S4, part of the ore is retained in the mining area to support the surrounding rock, and the rest of the ore is transported by the scraper through the mining vein and the middle ore body mining level to the chute; after the ore block mining is completed, the ore is discharged in a centralized manner; after the mining is completed, unified dry filling of waste rock is carried out, and the filling waste rock enters the goaf from the filling vein at the top of the middle ore body.

[0019] The present invention conducts drilling parameter tests on the target engineering ore body and surrounding rock, and finely determines the drilling speed range for the ore body and surrounding rock, as well as the relationship between different drilling angles and drilling speed within the ore body. The cut shaft is then excavated and mined along the ore body to one side. The target mining middle section ore body is divided into an upper segmented ore body and a lower segmented ore body. Rock drilling equipment is used to arrange upward parallel holes in the vein lane. During the drilling process, the arrangement of the parallel holes is dynamically adjusted based on the speed parameters determined in advance and the real-time data feedback from the rock drilling equipment. The direction and position of the boundary holes and internal holes are finely controlled. The upper and lower segmented ore bodies are then blasted with upward parallel holes to remove the ore, reducing waste rock collapse and the blasting depletion rate. Simultaneously, unilateral coordinated blasting is performed between the upper and lower segmented ore bodies, forming two stepped upper and lower production working surfaces on one side within the middle segment ore body, thereby achieving coordinated and finely controlled mining of thin ore veins. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the mining method of the present invention.

[0021] Figure 2 yes Figure 1 AA cross-section diagram.

[0022] Figure 3 for Figure 1 BB cross-section diagram.

[0023] Figure 4Schematic diagram of the drilling angle of the rock drilling equipment of the present invention in the left and right directions.

[0024] Figure 5 Schematic diagram of the drilling angle of the rock drilling equipment of the present invention in the front and rear directions.

[0025] Figure 6 This is the front view of the upward parallel hole embedding method of the present invention.

[0026] Figure 7 For attachment Figure 6 CC cross-section diagram.

[0027] Figure 8 For attachment Figure 6 DD cross-section diagram.

[0028] Figure 9 This is a map of the hole layout on the inner wall of a rock-drilled tunnel within the vein.

[0029] In the figure: 1. Upper segmented ore body; 2. Lower segmented ore body; 3. Inclined ramp connecting tunnel; 4. Filling through vein; 5. Exit tunnel from the upper middle segment ore body; 6. Top pillar; 7. Intermediate pillar; 8. Segmented rock drilling tunnel; 9. Exit through vein; 10. Exit tunnel from the middle segment ore body; 11. Upward parallel hole; 12. Collapsed ore; 13. Cutting shaft; 14. Ore body boundary; 101. Ore body; 102. Rock drilling tunnel within the vein; 103. Rock drilling tunnel wall within the vein; 111. Boundary hole; 112. Internal hole. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of the present invention and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, terms such as "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] See Figures 1 to 9 Now, the highly segmented and refined collaborative control mining method for steeply inclined thin veins is explained through a specific implementation method.

[0033] A uranium orebody has a dip of approximately 80° and an average thickness of approximately 3.3 meters. The orebodies in the deposit are all steeply inclined, nearly vertical ore bodies, with varying degrees of silicification across all ores. The surrounding rocks of the footwalls and upper and lower walls of the tectonic zone are primarily sericite-cataclastic granite, medium-grained biotite granite, and late-stage fine-grained granite, also exhibiting varying degrees of silicification. Fissures and late-stage main structures are less developed. Recent mining activity and exploration tunnel construction results indicate that orebody 101 and its footwalls rarely experience collapse, and the surrounding rocks of orebody 101 and its roof and floor plates are relatively stable.

[0034] The following are the specific implementation steps for mining this uranium ore body: S1. Rock drilling parameter test: The rock drilling parameter test is conducted on the ore body 101 and surrounding rock of the target project using on-site rock drilling equipment to obtain the drilling speed range of the rock drilling equipment operating in the ore body 101 and surrounding rock under drilling pressure, as well as the fitting relationship between the drilling speed and drilling angle of the rock drilling equipment operating in the ore body 101.

[0035] The drilling pressure of the rock drilling equipment is set according to field experience. The drilling pressure is determined according to the characteristics of the ore body 101. The rock drilling parameter test and the subsequent hole arrangement process are all carried out under this drilling pressure.

[0036] Due to the different physical properties of ore body 101 and the surrounding rock, drilling operations performed at the same drilling pressure in the ore body 101 and surrounding rock will result in different drilling speeds for the drilling equipment. Furthermore, because different operating angles of the drill bit affect the end contact area and drilling operation method to a certain extent, the drilling angle affects the drilling speed at a fixed drilling pressure. Therefore, by conducting multiple drilling parameter tests at different angles in the ore body 101 and surrounding rock at a fixed drilling pressure, we can determine the drilling speed range for the drilling equipment operating in the ore body 101 and surrounding rock under the specified drilling pressure, as well as a fitted relationship between the drilling speed and drilling angle for the drilling equipment operating in the ore body 101 under the specified drilling pressure.

[0037] S2. Mining of ore body 101: Multiple ore blocks are divided along the strike of the ore body. Intermediate pillars 7 are provided between two adjacent ore blocks. Different ore rooms are divided in the strike direction of the ore body by the intermediate pillars 7. Different middle sections of the ore body are divided in the height direction of the ore body by top pillars 6. Segmented rock drilling lanes 8 are arranged on the middle section of the ore body to divide the middle section of the ore body into an upper section ore body 1 and a lower section ore body 2. A cutting shaft 13 is arranged at one end of the ore block.

[0038] At the same time, an upper middle section ore body mining tunnel 5 is provided at the upper part of the middle section ore body, a middle section ore body mining tunnel 10 is provided at the lower part of the middle section ore body, a filling through vein 4 and a mining through vein 9 are arranged at the top and bottom of the middle section ore body respectively, a plurality of filling wells are evenly arranged on the top pillar 6 at the top of the middle section ore body, and a middle section ore body mining tunnel 10 is arranged along the direction of the ore body in the lower wall surrounding rock at the bottom of the middle section ore body; wherein, the middle section ore body mining tunnel 10 is connected with the mining through vein 9.

[0039] The horizontal tunnels along the vein of each segmented ore body are connected through the ramp connecting tunnel 3.

[0040] S3. Excavation and mining: Excavate the cutting shaft 13, and use the cutting shaft 13 as the free surface to carry out backward blasting in batches to drop the ore.

[0041] With the cutting shaft 13 as the free surface, the upper segmented ore body 1 and the lower segmented ore body 2 are both provided with a plurality of upward parallel holes 11, which are arranged in the same row, and the plurality of upward parallel holes 11 are parallel to each other, and the spacing between the plurality of upward parallel holes 11 is equal along the entire length of the hole, thereby forming a cutting groove after blasting.

[0042] It specifically includes two steps: fine-grained control of hole layout and blasting out the ore.

[0043] S31. Fine-grained control of hole layout: Multiple upward parallel holes 11 are arranged along the inclination of the ore body 101 in the staged rock drilling tunnel 8 and the middle ore body exit tunnel 10. The openings of the upward parallel holes 11 are located on the intra-vein rock drilling tunnel wall 103. The upward parallel holes 11 are highly segmented medium-deep holes. The upward parallel holes 11 are divided into boundary holes 111 and internal holes 112 based on their location. Boundary holes 111 are located on the ore body boundary 14, and the remaining upward parallel holes 11 are located within the ore body 101 as internal holes 112.

[0044] During the rock drilling process, according to the drilling speed range of the rock drilling equipment operating in the ore body 101 and the surrounding rock under the drilling pressure determined in step S1 and the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body 101, combined with the real-time feedback of the speed during the operation of the rock drilling equipment, the orientation of the upward parallel hole 11 is dynamically adjusted in real time to achieve parallel drilling.

[0045] The upward parallel hole 11 is drilled with the drilling pressure determined in step S1, and the upward parallel hole 11 is controlled in two dimensions, the front-back direction and the left-right direction, wherein the strike direction of the ore body is the front-back direction, and the two sides of the ore body 101 are the left-right direction.

[0046] The drill bit speed of the rock drilling equipment during the drilling process is collected in real time. The rock drilling equipment can be a rock drilling rig or a rock drill.

[0047] When drilling the boundary hole 111, the current location of the drill bit is determined based on the drilling speed range of the rock drilling equipment operating in the ore body 101 and surrounding rock under drilling pressure, combined with the real-time recorded drilling speed of the rock drilling equipment. If the real-time recorded drilling speed of the rock drilling equipment falls within the range of drilling speeds for the rock drilling equipment operating in the ore body 101 determined in step S1, the drill bit of the rock drilling equipment is located within the ore body 101, and the left-right orientation of the drill bit of the rock drilling equipment remains unchanged. If the real-time recorded drilling speed of the rock drilling equipment falls within the range of drilling speeds for the rock drilling equipment operating in the surrounding rock determined in step S1, the drill bit has deviated into the surrounding rock, and the left-right drilling angle of the drill bit needs to be adjusted until the drill bit is located within the ore body 101.

[0048] The adjustment direction of the drill bit is determined according to the relationship between the drilling speed ranges of the rock drilling equipment operating in the surrounding rock and the ore body 101 .

[0049] After the above adjustment, the drilling angle in the left and right directions is consistent with the angle of the ore body boundary 14. Ideally, there is no deviation in the front and back directions, and the actual drilling angle in the left and right directions is equal to the angle of the ore body boundary 14. Figure 4 However, in reality, the drilling angle of the rock drilling equipment may also produce a deviation in the front and back directions, such as Figure 5 As shown, this will result in a discrepancy between the actual drilling angle and the angle of the ore body boundary 14 , so it is also necessary to determine whether the drilling angle is deflected in the front-to-back direction.

[0050] On the premise that the drill bit is located inside the ore body 101, according to the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body 101, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed, which is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle has a deviation in the front-to-back direction. If the calculated theoretical actual drilling speed is consistent with the collected drilling speed of the rock drilling equipment, it means that there is no deviation in the front-to-back direction. If the calculated theoretical actual drilling speed is inconsistent with the collected drilling speed of the rock drilling equipment, the drilling angle is adjusted in the front-to-back dimension according to the fitting relationship.

[0051] When excavating the internal hole 112, the rock drilling equipment excavates along an angle parallel to the boundary hole 111. According to the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body 101, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed. The theoretical actual drilling speed is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle is deflected in the front-to-back direction, and the drilling angle is adjusted in the front-to-back dimension.

[0052] The above steps can accurately control the angles of the upper and lower parallel holes, especially the angle of the boundary hole 111, thereby reducing the collapse of waste rock during subsequent blasting and thus reducing the dilution rate.

[0053] S32, blasting out the ore: blasting out the ore from the upper segmented ore body 1 and the lower segmented ore body 2.

[0054] The upper ore body 1 and the lower ore body 2 are blasted out, and the upper ore body 1 is blasted a distance ahead of the lower ore body 2; after the blasting, collapsed ore 12 is produced, and two stepped upper and lower production working faces are formed on one side within the range of the middle ore body 101.

[0055] Specifically, the mining progress of the upper segmented ore body 1 is always 5 to 8 meters ahead of the lower segmented ore body 2.

[0056] After blasting out the mine, the following steps are also included: check the roof, and when encountering structural damage, take necessary anchor support measures depending on the situation.

[0057] S4. Waste rock filling: After the mining is completed, the goaf will be filled.

[0058] Part of the ore is retained in the mining area to support the surrounding rock, and the rest of the ore is transported by the scraper through the mining vein 9 and the middle ore body mining level 10 to the chute; after the ore block mining is completed, the ore is discharged in a centralized manner; after the mining is completed, the waste rock dry filling is carried out in a unified manner, and the filling waste rock enters the goaf from the filling vein 4 at the top of the middle ore body.

[0059] Among them, such as Figure 8 As shown, in one embodiment, the upward parallel holes 11 are arranged in a plum blossom pattern, and the openings of the upward parallel holes 11 are located on the inner wall of the rock drilling tunnel 102 within the vein.

[0060] The diameter of the upward parallel holes 11 is 51 mm to 89 mm, the row spacing between adjacent upward parallel holes 11 is 1 to 2 m, the hole spacing is 1 to 1.5 m, and the hole bottom spacing is 1 to 1.5 m.

[0061] The present invention conducts rock drilling parameter test research on the target engineering ore body and surrounding rock, and finely determines the drilling speed range of the rock drilling equipment in the ore body 101 and the surrounding rock, as well as the relationship between different drilling angles and the drilling speed inside the ore body 101; excavates the cutting shaft 13, and recovers the ore body 101 to one side; divides the target mining middle section ore body into an upper segmented ore body 1 and a lower segmented ore body 2, and uses rock drilling equipment to arrange upward parallel holes 11 in the vein lane. During the rock drilling process, the arrangement of the parallel holes is dynamically adjusted according to the speed parameters determined in the early stage and the real-time data fed back by the rock drilling equipment, and the hole layout direction and position of the boundary holes 111 and the internal holes 112 are finely controlled. Then, the upper segmented ore body 1 and the lower segmented ore body 2 are simultaneously blasted out with upward parallel holes 11, thereby reducing the collapse of waste rock and lowering the blasting depletion rate. At the same time, single-sided coordinated blasting mining is carried out between the upper segmented ore body 1 and the lower segmented ore body 2, and two stepped upper and lower production working faces are formed on one side within the middle segment of the ore body, thereby realizing coordinated and refined controlled mining of thin ore veins.

[0062] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for high-segmented and refined collaborative control mining of steeply inclined thin ore veins, characterized in that: The following steps are involved: S1. Perform rock drilling parameter tests on the ore body and surrounding rock of the target project using on-site rock drilling equipment, and obtain the drilling speed range of the rock drilling equipment operating in the ore body and surrounding rock under drilling pressure, and the fitting relationship between the drilling speed and drilling angle of the rock drilling equipment operating in the ore body; S2. Multiple ore blocks are divided along the strike of the ore body, and pillars are arranged between two adjacent ore blocks. Different mine rooms are divided in the strike direction of the ore body by the pillars, and different middle sections of the ore body are divided in the height direction of the ore body by the top pillars; segmented rock drilling lanes are arranged on the middle section of the ore body to divide the middle section of the ore body into an upper segmented ore body and a lower segmented ore body; a cutting shaft is arranged at one end of the ore block; S3, using the cut shaft as the free surface for backward blasting; S31, arranging upward parallel holes along the inclined direction of the ore body in the segmented rock drilling lanes and the middle ore body exit lanes, the upward parallel holes are high-segmented medium-deep holes, and the upward parallel holes include boundary holes and internal holes; in the process of rock drilling hole arrangement, according to the drilling speed range of the rock drilling equipment operating in the ore body and surrounding rock under the drilling pressure determined in step S1 and the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body, combined with the speed fed back in real time during the operation of the rock drilling equipment, the orientation of the upward parallel holes is adjusted dynamically in real time to achieve parallel hole arrangement; S32, blasting the upper and lower ore bodies; S4. After the mining is completed, the goaf will be filled.

2. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 1 is characterized in that: In step S31, upward parallel holes are drilled with the drilling pressure determined in step S1, and the upward parallel holes are controlled in two dimensions, namely, the front-to-back direction and the left-to-right direction, wherein the strike direction of the ore body is the front-to-back direction, and the two sides of the ore body are the left-to-right direction.

3. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 2 is characterized in that: When drilling a boundary hole, first determine the current position of the drill bit of the rock drilling equipment based on the drilling speed range of the rock drilling equipment operating in the ore body and surrounding rock under drilling pressure, combined with the real-time collected drilling speed of the rock drilling equipment. If it is located in the ore body, keep the left and right direction unchanged. If the drill bit deviates into the surrounding rock, adjust the left and right angle of the drill bit until the drill bit is located inside the ore body. At the same time, under the premise that the drill bit is located inside the ore body, according to the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed. The theoretical actual drilling speed is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle is deviated in the front-to-back direction, and the drilling angle is adjusted in the front-to-back dimension.

4. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 2 is characterized in that: When drilling internal holes, the rock drilling equipment drills along an angle parallel to the boundary hole. According to the fitting relationship between the drilling speed and the drilling angle of the rock drilling equipment operating in the ore body, the actual drilling angle in the left and right directions of the rock drilling equipment is substituted into the fitting relationship to obtain the theoretical actual drilling speed. The theoretical actual drilling speed is compared with the collected drilling speed of the rock drilling equipment to determine whether the drilling angle is deviated in the front-to-back direction, and the drilling angle is adjusted in the front-to-back dimension.

5. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 1 is characterized in that: In step S32, the upper segmented ore body and the lower segmented ore body are blasted out, and the upper segmented ore body is blasted a distance ahead of the lower segmented ore body; after the blasting, collapsed ore is produced, and two stepped upper and lower production working faces are formed on one side within the range of the middle segmented ore body.

6. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 1 is characterized in that: The upward parallel holes are arranged in a plum blossom pattern, and the openings of the upward parallel holes are located on the inner wall of the rock drilling tunnel in the vein.

7. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 1 is characterized in that: The diameter of the upward parallel holes is 51 mm to 89 mm, the row spacing between adjacent upward parallel holes is 1 to 2 m, the hole spacing is 1 to 1.5 m, and the hole bottom spacing is 1 to 1.5 m.

8. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 1 is characterized in that: In step S2, a mining tunnel of the previous middle section ore body is provided on the upper part of the middle section ore body, a filling through vein and a mining through vein are arranged at the top and bottom of the middle section ore body respectively, a plurality of filling wells are evenly arranged on the top column at the top of the middle section ore body, and a mining tunnel of the middle section ore body is arranged along the direction of the ore body in the lower wall surrounding rock at the bottom of the middle section ore body; wherein, the mining tunnel of the middle section ore body is connected with the mining through vein.

9. The method for high-segmentation and refined coordinated control mining of steeply inclined thin ore veins according to claim 8 is characterized in that: In step S4, part of the ore is retained in the mining area to support the surrounding rock, and the rest of the ore is transported by the shovel loader through the mining vein and the middle ore body mining level tunnel to the chute; after the ore block mining is completed, the ore is discharged in a centralized manner; after the mining is completed, unified dry filling of waste rock is carried out, and the filling waste rock enters the goaf from the filling vein at the top of the middle ore body.

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