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UNDERGROUND HARD ROCK MINERALS FIELDS DEVELOPMENT METHOD
UNDERGROUND HARD ROCK MINERALS FIELDS DEVELOPMENT METHOD
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机译:地下硬岩矿产开发方法
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摘要
FIELD: mining.;SUBSTANCE: method includes preparation and cutting operations, creation of horizontal 1,5,6,8,9 and vertical delineation 7 and separation artificial massifs 10, clearing withdrawal and filling in of developed area 12. All of the vertical artificial massifs 7,10, parallel to one of mutually perpendicular axis of a developing area horizontal cross section, to be trapezoid shaped with a long bottom foundation, to the delineation ones - rectangular shaped with a vertical side along the ore body contour 4 or developing area, the separation massifs 10 - isosceles shaped, and the trapezoid sides inclination angle defines form an equation tgα =hστ/(Poλσ - (Pa-Pb)τ), where h - floor height, m; σ and τ - the artificial massif compression and shear strength limits accordingly, MPa; λ - horizontal stress factor; Pa, Pb, Po - natural arch limit rock weight, part of the top artificial border massif weight and ore massif in a gap block weight accordingly. H.;EFFECT: invention allows creating a safe environment condition for high efficiency rate mine sections, delineated with artificial separation slabs, treatment.;3 dwg
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机译:领域:采矿;实体:方法包括准备和切割操作,创建水平的1、5、6、8、9和垂直轮廓线7以及分离人造地块10,清理撤回并填充已开发区域12。平行于开发区域水平横截面的相互垂直轴之一的人造地块7,10,其梯形形状具有长底部基础,呈轮廓线-沿矿体轮廓4呈垂直边的矩形形状面积,分离地块10-等腰形状以及梯形边倾斜角定义为一个方程tgα=hστ/(P o Sub>λσ-(P a Sub> -P b Sub>)τ),其中h-地板高度,m; σ和τ-人造地块的抗压强度和抗剪强度相应地限制为MPa; λ-水平应力因子; P a Sub>,P b Sub>,P o Sub>-天然拱极限岩石重量,顶部人工边界地块重量和间隙中的矿石地块的一部分相应地降低重量。 H .;效果:本发明允许为高效率的矿区创造一个安全的环境条件,并用人工分离板进行了处理; 3 dwg
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