CAJ | 학술논문

为解决采动过程中陷落柱活化导通奥灰水造成矿井突水事故的问题，采用理论分析、现场观测的手段从几何参数、发育特征、出现前兆和分布特征等4个方面分析归纳双柳煤矿陷落柱的基本特征，认为陷落柱主要发育在浅部，附近通常伴有小断层，周围煤岩层产状发生变化，主要分布在奥灰岩溶溶孔、溶洞发育比较强烈的区域。以双柳煤矿220工作面的X15陷落柱为例，通过FLAC3D软件模拟分析上组煤开采过程中陷落柱在采动影响下突水的危险性。研究结果表明：随着工作面的推进，陷落柱周边的塑性破坏场、渗流场和应力场发生变化，当工作面推进至距陷落柱30 m处，塑性破坏场与渗流场开始接触；距离10 m处，破坏区触及渗流区域的较高压区域，具有高突水危险。
위해결채동과정중함락주활화도통오회수조성광정돌수사고적문제，채용이론분석、현장관측적수단종궤하삼수、발육특정、출현전조화분포특정등4개방면분석귀납쌍류매광함락주적기본특정，인위함락주주요발육재천부，부근통상반유소단층，주위매암층산상발생변화，주요분포재오회암용용공、용동발육비교강렬적구역。이쌍류매광220공작면적X15함락주위례，통과FLAC3D연건모의분석상조매개채과정중함락주재채동영향하돌수적위험성。연구결과표명：수착공작면적추진，함락주주변적소성파배장、삼류장화응력장발생변화，당공작면추진지거함락주30 m처，소성파배장여삼류장개시접촉；거리10 m처，파배구촉급삼류구역적교고압구역，구유고돌수위험。
In order to prevent Karst collapse column conducting ordovician limestone water and mak-ing great mine flood, the basic characteristics of Karst collapse column in Shuangliu coal mine are stud-ied by geometric parameters, development characteristics, precursory and distribution characteristics through theoretical analysis and field observation. It indicates that Karst collapse column mainly devel-ops in shallow parts with small faults, while the attitude of coal and rocks is mainly distributed within ordovician limestone Karst dissolution pore and cave development region. Taking X15 Karst collapse column from 220 working face in Shuangliu coal mine as an example, the water inrush risk is analyzed by FLAC3D during mining upper coal group when there is Karst collapse column. The results show that:with working face moving forward, plastic failure fields, stress and seepage field of surrounding Karst collapse column begin to change. When the face moves to 30 m from the Karst collapse column, the plastic failure fields and seepage field begin to contact with each other, and with the face advancing, it extends to heavy water inrush risk.