CN114233376A - Pre-control top-retaining wall-protecting type mechanized upward high-layering filling method and system thereof - Google Patents
Pre-control top-retaining wall-protecting type mechanized upward high-layering filling method and system thereof Download PDFInfo
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- CN114233376A CN114233376A CN202111417459.8A CN202111417459A CN114233376A CN 114233376 A CN114233376 A CN 114233376A CN 202111417459 A CN202111417459 A CN 202111417459A CN 114233376 A CN114233376 A CN 114233376A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Abstract
The invention discloses a mechanized upward high-layering filling method of a pre-control top-retaining wall type and a system thereof, the method divides a stope into a plurality of ore sections from bottom to top, divides any one ore section into a plurality of ore layers from bottom to top, adopts high-layering layer-by-layer stoping from bottom to top, fills the ore layers after the stoping of the ore layers is finished, and adopts a long anchor cable as a support for the top layer of the ore layer of the uppermost layer which finishes the stoping after 3 to 4 layers of ore layers are continuously stoped. Through the mode, the invention combines the traditional upward layered filling method and the segmented filling method to change the height of the single layer into the height layer (the height of the double layer), thereby reducing the whole supporting cost and the engineering quantity, improving the production capacity of the stope, accelerating the production efficiency and shortening the operation cycle time of the stope.
Description
Technical Field
The invention relates to the technical field of underground mine mining, in particular to a mechanical upward high-layering filling method and system of a pre-control top-retaining wall type.
Background
In the mining field, particularly for two-step pillar stopes, such ore bodies are subject to complex mining conditions. Two sides of the stope in the second step are filling bodies during stope in the second step, and the stope in the second step is influenced by bleeding of the filling bodies in the stope in the first step, insufficient strength of the filling bodies and the like. The strength of the filling body of the one-step stope is not enough to support the stability of the whole two-step stope, so that the stope recovery safety condition of the two-step stope is extremely poor. Namely, the quality of the filling body of the stope in one step does not reach the standard, and the filling body collapses, so that the filling body in one step cannot meet the stoping requirements in two steps. The traditional mining method is difficult to adapt to the ore body mining at present.
The mining method sequentially divides panels and panel pillars along the direction of the broken ore body interlayer, and sequentially divides a one-step stope and a two-step stope in each panel along the vertical direction. And in the step, the stope of the stope is composed of two parallel advancing paths in the horizontal direction, the number of the advancing paths in the vertical direction is determined by the sectional height, and the filling is carried out after the mining is finished, so that the cemented filling body replacement strip column is formed. And after the stope of the first step of the stope room in the panel is completely mined, the stope is converted into stope mining of the second step of the stope, one-step cemented filling bodies are arranged on two sides of the stope in the one step in the step in the two steps of. Although the method adopts the long anchor cable for pre-reinforcement of the two-step ore pillar stope and adopts the sectional mining filling method, the mining efficiency and the mining safety of the two-step ore pillar stope are improved to a certain extent, but the stoping and filling mode still adopts the traditional mode, the mining efficiency is not essentially improved, the strength of a filling body is poor, and certain potential safety hazard is brought to operators.
Therefore, it is necessary to design a two-step mechanical upward high-layering filling mining method and a system thereof, which have the advantages of simple structure, strong safety, high mining efficiency and strong production capacity.
Disclosure of Invention
In order to overcome the problems, the invention provides a mechanized upward high-layering filling method of a pre-control top-retaining wall type and a system thereof. Therefore, the traditional upward layered filling method and the segmented filling method are combined, the height of the single layer is changed into the height of the high layer (double layer height), the integral supporting cost and the engineering quantity are reduced, the production capacity of the stope is improved, the production efficiency is accelerated, and the operation cycle time of the stope is shortened.
In order to achieve the purpose, the invention adopts the technical scheme that:
a mechanized upward high-layering filling method of a pre-control top retaining wall protection type comprises the following steps:
s1, dividing the studs in the two steps into a plurality of stopes, and arranging a mine wall between every two adjacent stopes;
s2, dividing any one stope into a plurality of ore sections from bottom to top, and dividing any one ore section into a plurality of ore layers from bottom to top;
s3, cutting the stope, and arranging a pre-control top support at the upward high-layering top plate of the stope;
s4, carrying out extraction on the ore bed positioned at the lowest layer;
s5, filling the ore bed after the last stoping, and stoping the ore bed on the upper layer of the ore bed after the filling is finished;
s6, repeating the step S5 until 3-4 ore layers are continuously mined;
s7, arranging a pre-control top support at the top plate of the uppermost layer of the ore layer after recovery;
and S8, repeating the steps S5, S6 and S7 in sequence until the roof of the stope is mined.
Further, in step S1, the width of the reserved middle column is set to be 4-6 m, the stope is arranged along the trend of the ore body, the length of the stope is set to be 40m, the width of the stope is set to be 12m, and the thickness of the ore wall is 2-3 m.
Further, in step S2, the height of the seam is 20m and the height of the seam is 4-6 m.
Further, in step S3, the pre-roof-control support is a long anchor cable pre-roof-control support, the height of the long anchor cable pre-roof-control support is 3-4 of the height of the ore bed, and the mesh size of the long anchor cable pre-roof-control support is set to 3.0 × 2.5 m.
Further, in step S5, the mining process adopts a full mining mode along the direction of the ore body, and the mining process is carried out layer by layer with high layering from bottom to top, the height of the layered top control is 6-8 m, and the mining height of the lowest layer of the ore layer is 6-8 m.
Further, in step S5, each ore seam is filled in a graded manner, with a filling height of 2-3 m, so as to reserve a 2-3 m stoping space for the next ore seam; the bottom of the ore bed is filled with a low-strength proportioned cemented filling body; and the top of the ore bed is filled with a high-strength proportioned cemented filling body, and the filling height is 0.5-1 m.
A mechanized upward high-level filling system of a pre-control top-retaining wall protection type is adopted, and the mechanized upward high-level filling method of the pre-control top-retaining wall protection type comprises a plurality of stopes arranged in parallel, a mine wall arranged on the peripheral wall of the stope, a top plate arranged at the top end of the stope and a long anchor cable pre-control top support arranged at the top end of the top plate;
the stope comprises a plurality of mine sections which are arranged from bottom to top in a segmented mode, and the mine sections comprise a plurality of mine layers which are arranged from bottom to top in a layered mode.
Further, any one of the seams includes a lower filling area and an upper filling area arranged at the top end of the lower filling area; the lower filling area is used for filling low-strength-ratio cemented filling bodies, and the upper filling area is used for filling high-strength-ratio cemented filling bodies.
Further, the three adjacent mine sections positioned at the lowest part form a mining stratum, and bottom ends of the three mine sections positioned at the same mining stratum are provided with a lower-tray vein-following transportation lane along the horizontal direction, and the lower-tray vein-following transportation lane is communicated through mining area slope roads arranged along the inclined direction; and one ends of the three groups of lower tray vein-following conveying lanes which are positioned at the lowest part and are far away from the mining area are communicated through a drop shaft which is arranged along the vertical direction.
Furthermore, a middle section transportation lane is arranged at the connecting position of the lower-wall vein-following transportation lane and the mining area slope road at the upper end and the lower end of the mining stratum, and the middle section transportation lane and the lower-wall vein-following transportation lane are positioned in the same plane and are arranged in a vertical state; a segmented transportation lane is arranged at the connecting position of the lower-wall vein-following transportation lane and the mining area slope road at the middle position of the mining stratum, and the segmented transportation lane is communicated with the lower-wall vein-following transportation lane; and layered connecting lanes are arranged between the ore layer and the middle section transportation lane and between the ore layer and the subsection transportation lane.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention relates to a mechanized upward high-layering filling method of a pre-control top retaining wall type, which divides a stope into a plurality of ore sections from bottom to top, divides any one ore section into a plurality of ore layers from bottom to top, adopts high-layering layer-by-layer stoping from bottom to top, fills the ore layers after the stoping of the ore layers is finished, and adopts a long anchor cable as a support for the top plate of the ore layer at the uppermost layer after the stoping of 3 to 4 ore layers is continuously finished. Therefore, the traditional upward layering filling method and the traditional segmentation filling method are combined, the height of the single layering is changed into the height of the high layering (double layering height), the integral supporting cost and the engineering quantity are reduced, the production capacity of the stope is improved, the production efficiency is accelerated, and the operation cycle time of the stope is shortened.
2. The mechanized upward high-layering filling method of the pre-control top retaining wall type is characterized in that the stope is reserved with the mine wall with the corresponding thickness to be mined in the two-step stope, so that the overall stability of the two-step stope is maintained, and the influences of insufficient strength of a filling body of the one-step stope and the like are reduced.
3. The mechanized upward high-layering filling method with the pre-control top retaining wall protection is characterized in that a long anchor cable is used as a support mode of the pre-control top to reinforce the top plate, so that pre-control reconstruction of the top plate is realized, and a top plate environment for safe operation of a high-layering stope is constructed.
4. The mechanized upward high-layering filling method of the pre-control top-retaining wall protection type provided by the invention has the advantages that the same ore bed is filled by adopting different filling bodies, the filling cost is reduced, the bottom of the ore bed can be filled by adopting the filling bodies with low strength proportion, the upper part of the ore bed adopts the pouring surface of the high-strength cemented filling body as a platform for the scraper to work, and the operation condition of upward horizontal high-layering filling is constructed.
Drawings
FIG. 1 is a schematic structural view of a pre-controlled top retained retaining wall mechanized upward high level fill system of the present invention;
FIG. 2 is a schematic layout of a pre-controlled roof long tendon support of the pre-controlled roof retaining wall type mechanized up-fill system of the present invention;
FIG. 3 is a schematic sectional view taken along line II-II in FIG. 1;
FIG. 4 is a schematic sectional view taken along the direction III-III in FIG. 1;
FIG. 5 is a flow chart illustrating the method of the present invention for mechanized top-loading high-level filling of a pre-controlled top-retained retaining wall;
the parts in the drawings are numbered as follows: 11. a bottom pillar; 12. a stud; 13. a water filtration well; 14. horizontal blast holes; 15. filling a return air shaft; 16. a long anchor cable; 17. a filler body; 18. an ore body; 20. a mine section; 21. a seam; 22. a mine wall; 23. a middle section transportation lane; 24. a draw shaft; 25. a mining area ramp; 26. a lower plate vein-following transportation lane; 27. a segmented transportation lane; 28. layering communication channels; 29. and (4) connecting roads in the stope.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention. It is to be understood that the described embodiments are only a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive exercise, are within the scope of the present invention.
Example 1
As shown in fig. 1 to 3, a mechanized top-loading high-level filling system 100 of a pre-controlled top-retaining wall type includes several stopes arranged in parallel, a mine wall 22 arranged on the outer peripheral wall of the stope, a roof arranged on the top end of the stope, and a pre-controlled top support with long anchor cables 16 arranged on the top end of the roof. The thickness of the mine wall 22 is set to be 2-3 m, so that the overall stability of the two-step stope is maintained, and the influence of insufficient strength of the filling body 17 of the one-step stope is reduced. The long anchor cable 16 pre-control top support can reinforce the top plate so as to realize pre-control reconstruction of the top plate and construct a top plate environment for high-layering stope safety operation. Particularly, the height of the long anchor cable 16 pre-control top support is 3-4 ore beds 21, and the mesh degree of the long anchor cable 16 pre-control top support is set to be 3.0 multiplied by 2.5 m. I.e. the row spacing of the anchor cables is 3.0m and the spacing is 2.5m, and the stoping operation of the next mine layer 21 can be carried out after the safety of the stope support is confirmed.
As shown in fig. 3-4, in some embodiments, any one of the stopes includes a plurality of mine sections 20 arranged in bottom-to-top segments, and any one of the mine sections 20 includes a plurality of mine layers 21 arranged in bottom-to-top tiers. Particularly, the height of the ore section 20 is 20m, and the height of the ore bed 21 is 4-6 m. The height of the layered roof control is 6-8 m, and the mining height of the lowest ore bed 21 is 6-8 m.
The layered filling height of the ore bed 21 is 2-3 m, and cementing filling is performed after layered stoping is finished each time. Any seam 21 includes a lower fill area and an upper fill area disposed at the top of the lower fill area. The lower filling area is used for filling the low-strength-ratio cemented filling body 17, and the upper filling area is used for filling the high-strength-ratio cemented filling body 17. And different filling bodies 17 are adopted to fill the same ore bed 21, so that the filling cost can be reduced. The bottom of the ore bed 21 can be filled by adopting the filling body 17 with low strength proportion, and the upper part of the ore bed 21 adopts the pouring surface of the high-strength cemented filling body 17 as a platform for the scraper to work, so as to construct the operation condition of filling horizontally and highly in layers.
As shown in fig. 3 to 4, in some embodiments, three adjacent mine sections 20 located at the lowest position constitute a mining level of a lower tray, the bottom ends of the three mine sections 20 located at the same mining level are provided with a lower tray vein haulage roadway 26 along the horizontal direction, and the lower tray vein haulage roadway 26 is communicated through a mining area slope 25 arranged along the inclined direction, so as to realize the communication of the mine sections 20. The ends of the three groups of lower tray vein-following conveying lanes 26 which are positioned at the lowest part and far away from the mining area are communicated through a drop shaft 24 which is arranged along the vertical direction. The drop shafts 24 are arranged every 100-150 m outside the vein.
And a middle section transportation lane 23 is arranged at the connecting position of the lower-tray vein-following transportation lane 26 and the mining area slope ramp 25 at the upper end and the lower end of the mining level, and the middle section transportation lane 23 is communicated with the lower-tray vein-following transportation lane 26 so as to communicate different stopes. And a segmented transport roadway 27 is arranged at the connecting position of the lower-wall vein-following transport roadway 26 at the middle position of the mining level and the mining area slope ramp 25, and the segmented transport roadway 27 is communicated with the lower-wall vein-following transport roadway. A layered connecting road 28 is arranged between the ore layer 21 and the middle section transportation lane 23 and the subsection transportation lane 27 so as to communicate the mining site with the subsection transportation lane 27. Each stope is communicated with the footwall vein transport lane 26 through a stope communication lane 29.
As shown in fig. 3-4, and with reference to fig. 1, in some embodiments, the top end of the ore body 18 is provided with a charge air return shaft 15 in a vertical direction. And the two ends of the left side of the stope are provided with water filtering wells 13. Fresh air enters the stope from the bottom end of the water filtration well 13 to clean the working face. Meanwhile, the dirty air returns to the upper middle section return airway from the filling return airway 15. The auxiliary ventilation of the local fan can be realized in the stope, and a good operation environment is ensured.
As shown in fig. 5, a mechanized upward high-level filling method of a pre-controlled top-retaining revetment type using the mechanized upward high-level filling system of the pre-controlled top-retaining revetment type includes the following steps:
and S1, dividing the two-step stud 12 into a plurality of stopes, and arranging the mine wall 22 between two adjacent stopes.
In the step, the width of the reserved stud 12 is set to be 4-6 m, the stope is arranged along the trend of the ore body 18, the length of the stope is set to be 40m, the width of the stope is set to be 12m, and the thickness of the ore wall 22 is 2-3 m.
And S2, dividing any stope into a plurality of ore sections 20 from bottom to top, and dividing any ore section 20 into a plurality of ore layers 21 from bottom to top.
In the step, the stope is divided into an upper mining stratum, a middle mining stratum and a lower mining stratum from top to bottom, and the height of a single mining stratum is 40-60 m. Each mine level includes a plurality of mine sections 20. The height of the ore section 20 is 20m, and the height of the ore bed 21 is 4-6 m. When the stope. The bottom of stope is provided with the foundation 11, and the height of foundation 11 sets up to 6m to do not set up the fore-set.
And S3, cutting the stope, and arranging a pre-control top support at the upward high-layering top plate of the stope.
In the step, the pre-controlled top support is a long anchor cable 16 pre-controlled top support, the height of the long anchor cable 16 pre-controlled top support is 3-4 ore beds 21, and the mesh degree of the long anchor cable 16 pre-controlled top support is set to be 3.0 multiplied by 2.5 m. Namely, the row spacing of the anchor cables is 3.0m, the spacing is 2.5m, and the mining operation of the next ore bed 21 can be carried out after the safety of the stope support is confirmed.
And S4, carrying out extraction on the ore layer 21 positioned at the lowest layer.
And S5, filling the ore bed 21 after the last stoping, and stoping the ore bed 21 which is positioned at the upper layer of the ore bed 21 after the filling is finished.
In the step, the stoping adopts a mode of fully stoping along the trend of the ore body 18, and high-layering and layer-by-layer stoping from bottom to top is carried out, wherein the layering top control height is 6-8 m, and the mining height of the lowest ore layer 21 is 6-8 m.
The recovery process comprises two stages of rock drilling and blasting. Specifically, the Boomer281 full-hydraulic rock drilling jumbo is adopted to mechanically and intelligently drill the horizontal blast holes 14 so as to improve the rock drilling efficiency. And the pressing top adopts matt surface to control blasting, so that the top plate is ensured to be smooth and stable. After the rock drilling is finished, blast holes are cleaned, manual charging is adopted, explosive is made of 2# rock explosive, an initiator triggers a detonating tube detonator, the detonating tube detonator then detonates the detonating cord, and the detonating tube detonator laid in each blast hole is detonated by the detonating cord to detonate the explosive.
The ore is transported by a scraper, the scraper enters a stope from a subsection transportation lane 27 through a layering communication lane 28 for ore loading, and the ore is directly unloaded to an out-of-sea chute 24 after being shoveled and transported to a main chute 24 through an electric locomotive. When the stope down-the-road ore pass 24 is exposed, ore is removed from the intra-vein down-the-road ore pass 24.
In the step, each ore bed 21 is filled in a grading manner, the filling height is 2-3 m, and a 2-3 m stoping space is reserved for the next ore bed 21. The bottom of the ore bed 21 is filled with a low-strength proportioned cemented filling body 17; the top of the ore bed 21 is filled with a high-strength proportioned cemented filling body 17, and the filling height is 0.5-1 m. The upper part of the ore bed 21 adopts the pouring surface of the high-strength cemented filling body 17 as a platform for the scraper to work, and the operation condition of upward horizontal high-layered filling is constructed.
The filling is to perform preparation and filling operations according to the filling requirement after the ore cleaning of each ore bed 21 is completed. And building a filling retaining wall in the layered connection roadway, enabling a filling pipeline to enter each stope from a filling air return well 15 of each stope for filling, and reserving an operation space of 2-3 m. The underground tunneling waste rock can be filled in the goaf nearby, and the waste rock in the stope is left in the stope for filling.
And S6, repeating the step S5 until 3-4 ore layers 21 are continuously mined.
And S7, arranging a pre-controlled roof support at the top plate of the uppermost mine layer 21 after the recovery is finished.
In the step, the pre-controlled top support adopts a support mode of the long anchor cable 16, and after 3-4 ore layers 21 are mined, the long anchor cable 16 is installed to pre-control the top support, so that the safety of the mining and filling process can be ensured.
And S8, repeating the steps S5, S6 and S7 in sequence until the roof of the stope is mined.
The above description is only for the purpose of illustrating the technical solutions of the present invention and is not intended to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: modifications can be made to the technical solutions described in the foregoing embodiments, or some or all of the technical features may be equivalently replaced; all the equivalent structures or equivalent processes performed by using the contents of the specification and the drawings of the invention, or the direct or indirect application thereof to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A mechanized upward high-layering filling method of a pre-control top retaining wall protection type is characterized by comprising the following steps:
s1, dividing the two-step stud (12) into a plurality of stopes, and arranging a mine wall (22) between every two adjacent stopes;
s2, dividing any one stope into a plurality of ore sections (20) from bottom to top, and dividing any one ore section (20) into a plurality of ore layers (21) from bottom to top;
s3, cutting the stope, and arranging a pre-control top support at the upward high-layering top plate of the stope;
s4, carrying out stoping on the ore bed (21) positioned at the lowest layer;
s5, filling the ore bed (21) which is mined last time, and mining the ore bed (21) which is positioned at the upper layer of the ore bed (21) after filling;
s6, repeating the step S5 until 3-4 ore layers (21) are continuously mined;
s7, arranging a pre-control top support at the top plate of the uppermost layer (21) after recovery;
and S8, repeating the steps S5, S6 and S7 in sequence until the roof of the stope is mined.
2. The mechanized upward high-layering filling method of a pre-controlled top-retaining wall type according to claim 1, characterized in that, in step S1, the width of the retaining room pillar (12) is set to be 4-6 m, the stope is arranged along the strike of the ore body (18), the length of the stope is set to be 40m, the width thereof is set to be 12m, and the thickness of the ore wall (22) is 2-3 m.
3. The mechanized upward high-layering filling method of a pre-controlled top-retaining wall type according to claim 1, characterized in that, in step S2, the height of the ore section (20) is 20m and the height of the ore layer (21) is 4-6 m.
4. The mechanized top-loading high-bay filling method of a pre-controlled roof-retaining revetment type according to claim 1, wherein in step S3, the pre-controlled roof support is a long anchor cable (16) pre-controlled roof support, the height of the long anchor cable (16) pre-controlled roof support is 3-4 of the height of the ore layer (21), and the mesh size of the long anchor cable (16) pre-controlled roof support is set to 3.0 x 2.5 m.
5. The mechanized upward high-level filling method of a pre-controlled top retaining wall type according to claim 1, wherein in step S5, the mining is performed in a mode of full mining along the inner direction of the ore body (18), and high-level layer-by-layer mining from bottom to top is performed, wherein the level of the top is controlled to be 6-8 m, and the mining height of the lowest ore layer (21) is 6-8 m.
6. The mechanized upward high-layering filling method of a pre-controlled top-retaining wall type according to claim 1, characterized in that, in step S5, a graded filling manner is adopted for each ore seam (21), the filling height is 2-3 m, so as to reserve a 2-3 m mining space for the next ore seam (21); the bottom of the ore bed (21) is filled by a low-strength proportioned cemented filling body (17); the top of the ore bed (21) is filled with a high-strength proportioned cemented filling body (17), and the filling height is 0.5-1 m.
7. A mechanized upward high-level filling system of a pre-controlled top-retained retaining wall type, which adopts the mechanized upward high-level filling method of the pre-controlled top-retained retaining wall type according to any one of claims 1 to 6, and is characterized by comprising a plurality of stopes arranged in parallel, a mine wall (22) arranged on the outer peripheral wall of the stope, a roof arranged at the top end of the stope, and a long anchor cable (16) arranged at the top end of the roof for pre-controlling top support;
any one stope includes a plurality of ore blocks (20) of segmentation from bottom to top, and any one ore block (20) includes a plurality of ore beds (21) of layering setting from bottom to top.
8. The mechanized upward high-level filling system of a pre-controlled top-retained retaining wall type according to claim 7, characterized in that any one of the mineral layers (21) comprises a lower filling zone and an upper filling zone disposed at a top end of the lower filling zone; the lower filling area is used for filling low-strength-ratio cemented filling bodies (17), and the upper filling area is used for filling high-strength-ratio cemented filling bodies (17).
9. The mechanized upward high-layering filling system of a pre-controlled top-retaining wall type according to claim 7, characterized in that three ore sections (20) located at the lowest position constitute a mining level, the bottom ends of the three ore sections (20) located at the same mining level are provided with a lower-tray vein-following haulage roadway (26) along the horizontal direction, and the lower-tray vein-following haulage roadway (26) is communicated through a mining area slope (25) arranged along the inclined direction; and one ends of the three groups of the lower tray vein-following conveying lanes (26) which are positioned at the lowest part and far away from the mining area are communicated through a drop shaft (24) which is arranged along the vertical direction.
10. The mechanized top-loading high-bay filling system of claim 9, wherein a middle section roadway (23) is provided at a connection position of the footwall vein roadway (26) and the stope ramp (25) at the upper and lower ends of the mining level, the middle section roadway (23) and the footwall vein roadway (26) are located in the same plane and are arranged in a vertical state with respect to each other; a segmented transportation roadway (27) is arranged at the connecting position of the lower-wall vein transportation roadway (26) and the mining area slope ramp (25) at the middle position of the mining level, and the segmented transportation roadway (27) is communicated with the lower-wall vein transportation roadway (26); a layered connecting road (28) is arranged between the ore layer (21) and the middle section transportation lane (23) and the subsection transportation lane (27).
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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