CAJ | 학술논문

为探究底板断层采动活化及其阻水性变化特点,选择杨村煤矿4603工作面F6断层进行了采动过程断层带采动应力分布及活化导水效应的现场实测研究.根据实测结果,一方面,底板测点采动应力呈现工作面推过前变化缓慢及工作面临近、推过后增大幅度加剧的特点;另一方面,底板断层带水压在工作面推进过程中变化不大,其中在工作面临近测点时形成一个“水压力降压区”.综合对比分析得出4603工作面底板 F6断层未因采动而活化形成导水通道,为认识底板断层采动活化特征提供了重要的实测依据.
위탐구저판단층채동활화급기조수성변화특점,선택양촌매광4603공작면F6단층진행료채동과정단층대채동응력분포급활화도수효응적현장실측연구.근거실측결과,일방면,저판측점채동응력정현공작면추과전변화완만급공작면림근、추과후증대폭도가극적특점;령일방면,저판단층대수압재공작면추진과정중변화불대,기중재공작면림근측점시형성일개“수압력강압구”.종합대비분석득출4603공작면저판 F6단층미인채동이활화형성도수통도,위인식저판단층채동활화특정제공료중요적실측의거.
@@@@Aimed at the problem of the safe mining of Yangcun coal mine has been seriously threatened by confined water under floor. Based on the hydrogeological conditions of fully mechanized workface on 4603 working face of Yangcun coal mine, the characteristics of fault activation water inrush were analysised by theoretical evaluation and in-situ measurement. The result of theoretical evaluation shown that co-efficients of the floor water inrush were normal, the workingface could be mined safely. The result of stress in-situ measurement shown that the stress of the floor were increasing during the mining, which appeard slow-varied before the workingface passed through the position and speedy-varied after the workingface passed through the position. The in-situ measurement of water pressure shown that the water pressure of the floor changed unevidently, and in the vicinity of the workingface water pressure came down. Correlation analysised between theoretical e-valuation and in-situ measurement, the faults were not alive during mining in 4603 workingface of Yangcun coal mine, it's safe to mine. And the results make a reference for the rationally mining in Yanzhou coal mine.