CAJ | 학술논문

　　以某矿综放工作面开采实际为背景，通过应变法对煤层底板不同深度岩层变形程度随工作面推进的变化进行实测，得出采动矿压对底板的剧烈影响范围具有“超前”显现和“滞后”延续特点，且矿压剧烈影响超前显现距为37 m，矿压剧烈影响滞后显现距为32 m，表现为由浅及深相应减小的总体特征；结合采动底板钻孔窥视镜成像分析，确定出工作面底板采动破坏深度约为12 m；以现场实测结果为基础，采用FLAC3D数值模对煤层底板采动破坏特征进行分析，揭示出煤层开采过程中底板的三维破坏特征。采用现场应变实测、原位钻孔窥视镜观测和数值模拟相互验证的方法，对煤层底板破坏特征进行综合对比研究，弥补了以往研究手段单一的缺点。
　　이모광종방공작면개채실제위배경，통과응변법대매층저판불동심도암층변형정도수공작면추진적변화진행실측，득출채동광압대저판적극렬영향범위구유“초전”현현화“체후”연속특점，차광압극렬영향초전현현거위37 m，광압극렬영향체후현현거위32 m，표현위유천급심상응감소적총체특정；결합채동저판찬공규시경성상분석，학정출공작면저판채동파배심도약위12 m；이현장실측결과위기출，채용FLAC3D수치모대매층저판채동파배특정진행분석，게시출매층개채과정중저판적삼유파배특정。채용현장응변실측、원위찬공규시경관측화수치모의상호험증적방법，대매층저판파배특정진행종합대비연구，미보료이왕연구수단단일적결점。
Based on the condition of the fully-mechanized working face in the mine, the rock deforma-tions that changes with workface advance under different depth of coal seam floor are measured through the strain method. The results show that the violent influent range of mine pressure on the coal seam floor was “advance” appearance and “lag” continuity. The distance of the “advance” appearance was 37 m and the “lag” continuity was 32 m, and the violent influent range of mine pressure on the coal seam floor corresponding is decreasing from the shallow to deep. Combining with the analysis of the drilling sighting glass on mining floor, it is confirmed that the damage depth of working face floor min-ing-induced was 12 m. Based on the field in-situ measurement, using FLAC3D numerical simulation as a method of making a comprehensive comparative study about the failure characteristics of the coal floor, it reveals the three-dimensional failure characteristics of the floor in the mining process better. Using the field strain measurement, in-situ drilling sighting glass observations and numerical simulations as a mutual authentication method of making a comprehensive comparative study of the failure characteris-tics of the coal floor, it makes up the disadvantage of single research means in the past.