冯营矿矿井突水机理分析  

Mechanism of water-inrush in Fengying mine

作　　者：李新新[1] 郑继东[1] 李智勇[2] 马晓云[1] 

机构地区：[1]河南理工大学资源环境学院,河南焦作454003 [2]焦作煤业集团冯营矿,河南焦作454000

出　　处：《河南理工大学学报（自然科学版）》2009年第4期413-417,共5页Journal of Henan Polytechnic University（Natural Science）

摘　　要：针对冯营矿矿井水文地质条件复杂、水害严重的现状,研究了矿井充水水源、充水通道等充水条件,认为石炭系L8灰岩水、顶板砂岩空隙裂隙水和L2灰岩水是主要充水水源,断裂构造是主要的导水通道.研究表明:煤层顶板砂岩含水性相对较弱,太灰和奥灰含水层属中等—强富水性;断裂构造是沟通煤层底板太原组L8,L2灰岩和奥陶系(O2)灰岩的主要通道,也是矿井突水且突水量较大的主要因素之一.井田断层发育且导水良好,形成矿井突水的潜在威胁;对煤层底板采动裂隙影响的计算表明其有效隔水层较薄,加之矿压对底板的破坏,可构成煤层底板导水通道.以上因素导致冯营矿水害频发.Hydrogeological condition of Fengying coal mine is complicated, and water disaster is serious. By analyzing source of the water filling and the way of water filling, it is obtained that Ls water - inrush from proof and L2 are the source of mine water filling, fault is the way of water filling. The research shows that aquifer absorbability of roof is weaker, and Taiyuan group and ordovician aquifer absorbability is strong. Fracture faults is the main channel that communicates L2 , L8 and O2 , and also is the main reason for water - inrush and large water. Faults growth is better, which becomes potential threat for water - inrush. The calcula- tion results of mining fissures show that effective impermeable layer is thinner, in addition damage of rock- burst, it may become channel of water - inrush. All above factors lead to water - inrush in Fengying coal mine frequently.

关 键 词：冯营矿 矿井充水因素 断层 突水机理 

分 类 号：TD742[矿业工程—矿井通风与安全]