CAJ | 학술논문

针对工作面上覆巨厚坚硬岩浆岩条件，采用相似模拟实验研究方法，研究了巨厚岩浆岩的破断运移规律。通过分析实验现象和实验数据，得知岩浆岩的初次破断是两端支承悬空结构中部下位及端部上位拉破断所致，岩浆岩破断后下位离层闭合，岩浆岩初次破断后的覆岩呈现拱形状态。岩浆岩2次周期性破断结构具有几何相似性，破断岩块呈平行四边形形态，并能够形成铰接结构，周期破断后并不随之失稳运动。岩浆岩及其上位岩层几乎发生同步运移，岩浆岩作为主关键层控制着采场覆岩运动，对覆岩结构有决定作用。
침대공작면상복거후견경암장암조건，채용상사모의실험연구방법，연구료거후암장암적파단운이규률。통과분석실험현상화실험수거，득지암장암적초차파단시량단지승현공결구중부하위급단부상위랍파단소치，암장암파단후하위리층폐합，암장암초차파단후적복암정현공형상태。암장암2차주기성파단결구구유궤하상사성，파단암괴정평행사변형형태，병능구형성교접결구，주기파단후병불수지실은운동。암장암급기상위암층궤호발생동보운이，암장암작위주관건층공제착채장복암운동，대복암결구유결정작용。
Applying analogue simulation method to researching breakage and movement rule of extremely-thick hard magmatic rock, it was obtained that first breakage of magmatic rock was tension breakage of upper-middle and ends of two-end abutment hanging struc-ture by simulation data analysis, and that overlying strata took on arch state after first breakage for lower-rocks separation.Periodical breakage of magmatic rock had geometrical similarity, broken rocks took on parallelogram and could form hinged structure which were not easy to be instable after periodical breakage.Magmatic rock moved simultaneously with upper strata.As the key strata, magmatic rock controlled overlying strata movement of mining field.