岩体渗透结构与矿坑涌水强度关系

非均质和结构性是岩体的渗透特征。渗透结构可以分为壳状渗透结构、脉状渗透结构和层状渗透结构三种基本类型 :壳状渗透结构条件下矿坑涌水强度随深度衰减 ;脉状渗透结构使得矿坑涌水强度随深度衰减幅度小 ;层状渗透结构对矿坑涌水强度的控制作用取决于岩层的组合效果。矿区含水岩体的渗透特征由三种基本渗透结构复合而成。复合的渗透结构使矿区出现多条突水强度随深度衰减曲线 ,多个突水强度峰值

EFFECT OF PERMEABILITY STRUCTURE ON PIT FLOW INTENSITY IN FRACTURED ROCK

Heterogeneity and spatial structure of permeability are the basic characteristic of fractured rocks, the paper focus on summarizing three type of spatial structure of permeability. It is indicated that the pit flow intensity, governed by gradient structure of permeability, declines with depth markedly; the pit flow intensity, governed by nervation structure of permeability, declines with depth slowly; the effect of sandwich structure of permeability on pit flow intensity depends on lithological combination. The characteristic of permeability in fractured rock usually consist of three basic type of the structure of permeability, which make the cure of the pit flow intensity vs. depth display several peak.