煤田地质与勘探2019，Vol.47Issue(1)：138-143,6.DOI:10.3969/j.issn.1001-1986.2019.01.021
基于板壳和断裂力学理论的上覆采空区积水危险性判定技术
Risk judgment technology of water accumulation in overlying goaf based on plate shell and fracture mechanics theory
摘要
Abstract
In order to avoid the threat of water penetration from the goaf of overlying seam No.6 during mining seam No.10 in Shengli coal mine of Linfen, Shanxi, plate-shells theory and fracture mechanics theory were used to establish the mechanics model of the development height of water-conducting fissure zone and the rupture depth of the floor. The water conducting fissure zone developmental height in districts I-VI of coal seam 10 is 46.77 m, 48.86 m, 56.05 m, 56.14 m, 56.33 m and 55.20 m, and the rupture zone depth of the floor in districts I-IV areas of coal seam 6 is 1.57 m, 1.14 m, 1.85 m and 1.26 m. By structuring criteria for water accumulation risk classification of overlying goaf and to determine the risk of accumulated water in the goaf of coal seam 6 during the mining process of coal seam10, the determination result shows that the water accumulation risk in districts I-IV areas of coal seam 6 is of the type of water inrush for seam 10, and would threaten the mining of coal seam10. The influence of the unminable area of seam 6 on the districts V-VI of seam 10 is of permeability of primary rock, and wouldn't threaten the coal extraction in the districts V-VI of coal seam 10.关键词
采空区积水/板壳理论/断裂力学理论/导水裂隙带/破裂带Key words
goaf water/plate-shell theory/fracture mechanics theory/water-flowing fractured zone/fractured zone分类
矿业与冶金引用本文复制引用
题正义,张峰,秦洪岩,朱志洁..基于板壳和断裂力学理论的上覆采空区积水危险性判定技术[J].煤田地质与勘探,2019,47(1):138-143,6.基金项目
国家自然科学基金项目(51704148) （51704148）
