采矿与安全工程学报2017，Vol.34Issue(2)：323-329,7.DOI:10.13545/j.cnki.jmse.2017.02.018
断层滞后型突水渗-流转化机制及数值模拟研究
The seepage-flowing conversion mechanism of the fault lagging water inrush and its numerical simulation
摘要
Abstract
On the basis of systematic study of the characteristics of fault lagging water inrush in the mining face 13301 of Wanglou coal mine, its seepage-flowing conversion mechanism was deeply ana-lyzed. Then the double-stage theory model of "mining disturbance-penetration weakened" is put for-ward. The stage of the fault permeability weakening is further divided into three stages: unsaturated seepage stage, slow and stable full seepage stage, and fast saturated seepage stage. Based on the com-mon characteristics of flow pattern changes in the process of water inrush, the mathematical and physi-cal model of each stage was established through Richard equation, Darcy's law, and Brickman equation respectively. Then finite element model for the coal mining faces was established, which realized the complete description of the process for the internal groundwater flow in the fault group from unsaturat-ed to saturated, from slow to fast in water flow speed, from weak to strong in permeability. The water inflow amount calculated through the model basically tallies with the reality.关键词
采动影响/断层/滞后突水/渗-流转化/数值模拟Key words
mining influence/fault/lagging water inrush/conversion from seepage to flow/numerical simulation分类
矿业与冶金引用本文复制引用
李海燕,张红军,李术才,刘人太,郑卓,白继文..断层滞后型突水渗-流转化机制及数值模拟研究[J].采矿与安全工程学报,2017,34(2):323-329,7.基金项目
国家自然科学基金项目(51379114) （51379114）
