摘要
山焦汾西煤矿开采过程中的几大灾害事故,多数情况下都与隐蔽致灾地质因素紧密相关,近年来煤矿隐蔽致灾地质因素主要以引发煤矿水害重大灾害事故为主要原因。煤矿隐蔽致灾地质因素是指隐伏在煤层及其围岩内,在开采过程中可能诱发灾害的地质构造和不良地质体及其在采动应力耦合作用下形成的灾变地质体。导致煤矿水害事故发生主要有老窑采空区、各种水体、断层、陷落柱导水等。煤矿隐蔽致灾地质因素具有隐蔽性、时变性、突发性的特点,探测和预防难度大。随着煤矿开采活动演变成灾,近年来出现了多种新型隐蔽致灾因素和灾害形式,例如断层滞后导水、采动离层水等。山焦汾西煤矿隐蔽致灾地质因素和灾害形式主要是水害。
With the characteristics of concealment, time--varying, sudden and difficult to detect and prevent, coal mine conceal disaster geological factor refers to geological structure hidden in coal seam and its surrounding rock and possibly inducing disaster in the mining and geological hazard body formed under stress coupling in the rain ing, which is the main reason of coal mine water disaster major calamity accident in recent years. Certain major calamity accident in the mining of Fenxi Colliery, Shanxi Coking Coal Group Co. are related to conceal disaster geological factor. Situation caused coal water disaster accident is mainly goafing of old coal mine, various water, fault and collapse column water conductivity, etc.. With the evolution of coal mining disaster, a variety of new forms of conceal disaster factor such as water disaster accident of fault hysteretic conductivity and mining separated strata seeper has occurred recent years. Mountain Coal Coke fenxi hidden hazards and disasters in the form of geological factors are mainly water damage.
出处
《江西煤炭科技》
2014年第3期28-31,共4页
Jiangxi Coal Science & Technology
关键词
煤矿开采
致灾因素
防治建议
coal mining
disaster factors
control strategies
