摘要
为研究承压水上带压开采工作面底板破坏深度,确保有突水威胁的矿井能安全开采,基于底板马鞍形破坏规律和直流电法测试原理,通过在五阳煤矿7601工作面安装电极电缆观测底板岩层视电阻率,研究了工作面回采过程中底板岩层电性特征的变化。结果表明:五阳煤矿7601工作面底板破坏深度为26.7m,该研究结果对五阳煤矿底板奥灰水防治具有积极指导意义,证明矿井电剖面法观测底板破坏深度是可行的,是一种值得推广应用的底板破坏深度观测方法。
In order to study the floor failure depth of the coal mining face above the pressure water stratum and to ensure the water inrush danger to the mine safety mining, based on the floor saddle- shaped failure law and DC electric method＇s measuring principle, with the floor stratum visual resistance rate of observation and measured with the electric pole cable installed in the 7601 coal mining face of Wuyang Mine, the paper studied the variation of the floor stratum electric features during the coal mining processing. The results showed that the failure depth of the floor in the 7601 coal mining face of Wuyang Mine was 26. 7 m. The study results would have the active guidance meaning to the Ordovieian limestone water prevention and control for the floor in Wuyang Mine. The mine electric ＂profiling method was feasible to observe the failure depth of the floor and could be a valuable promoted applied observation and measured method of the floor failure depth.
出处
《煤炭科学技术》
CAS
北大核心
2010年第1期97-100,共4页
Coal Science and Technology
基金
国家重点基础研究发展计划(973计划)资助项目(2007CB209402)
国家自然科学基金重点资助项目(50834005)
关键词
直流电法
破坏深度
矿井物探
采动破坏
DC electric method
failure depth
mine geophysical exploration
mining failure
