含夹石缓倾斜中厚矿体上下盘矿协同分采充填采准结构
By setting interbedded rock layers to isolate the ore body in a gently dipping, medium-thick ore body, the coordinated mining of the hanging wall and footwall ore bodies is achieved. This solves the problems of ground pressure management and low production efficiency in the mining of gently dipping, medium-thick ore bodies, improves production stability and safety, and reduces mining costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORIN MINING LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for efficiently mining gently dipping, medium-thick ore bodies, resulting in problems such as poor ground pressure management, low production efficiency, complex mining processes, and high mining costs.
By setting up interbedded rock layers in gently dipping, medium-thick ore bodies, coordinated mining of the hanging wall and footwall ore bodies can be achieved. By setting up large-scale access roads in the footwall mining area and setting up rhomboid medium-deep holes in the footwall mining area, the rhomboid medium-deep hole subsequent backfilling mining method can be adopted to avoid the exposure of large areas of goaf in the vertical direction.
It improved the stability of the production area in the panel, enhanced safety, increased production efficiency, and reduced mining costs.
Smart Images
Figure CN224515184U_ABST
Abstract
Claims
1. A preparatory structure for the coordinated mining and backfilling of the hanging wall and footwall of a gently dipping, medium-thick ore body containing interbedded rocks, characterized by: The gently dipping, medium-thick ore body is divided into the footwall ore body (1), the interbedded rock isolation layer (2), and the hanging wall ore body (3) from bottom to top. The hanging wall ore body (3) is divided into a hanging wall area along the strike of the ore body. The hanging wall area is divided into a hanging wall stope. A winding hanging wall ramp (5) is set up along the dip in the hanging wall area. The hanging wall area has a haulage roadway (8) along the dip on both sides. The two ends of the hanging wall ramp (5) are connected to the haulage roadways (8) along the dip on both sides. Large-scale access roads connecting to the hanging wall stope are set up on both sides of the hanging wall ramp (5). 16) The footwall ore body (1) is divided into footwall areas along the strike of the ore body. Footwall mining areas are divided within the footwall areas. Footwall transport roadways (10) are set up along the strike of the footwall area. Footwall transport roadways (11) are arranged along the dip of the footwall area on both sides. The two ends of the footwall transport roadways (10) are connected to the footwall transport roadways (11) on both sides respectively. Footwall transport roadways (10) are provided along the strike of the footwall area with drilling and ore extraction roadways (6) that are connected to the bottom of the footwall mining area. Rhomboid medium-deep blast holes (14) are drilled in the drilling and ore extraction roadways (6).
2. The filling and associated development structure of the upper and lower disc ore of the gently inclined medium-thick ore body with stone-containing pinch, according to claim 1, characterized in that: Both sides of the panel ramp (5) and the lower panel transport roadway (10) are equipped with panel columns (7).
3. The sublevel mining and filling structure for the upper and lower disc of the medium thick ore body with the pinch of the gentle dip according to claim 1, characterized in that: Isolation pillars (4) are left in the upper ore body (1) and safety pillars (9) are set on both sides of the upper ore body along the vein transport roadway (8) and the lower ore body along the vein transport roadway (11).
4. The filling and associated development structure of the upper and lower disc ore of the gently inclined medium-thick ore body with stone-containing pinch, according to claim 1, characterized in that: The cross-sectional dimensions of the ramp (5), the upper transport lane along the vein (8), the lower transport lane (10), and the lower transport lane along the vein (11) are all three-centered arches with dimensions of 4.6m*4.4m.