CAJ | 학술논문

　　为了探究郑州矿区厚的软顶、软底和软煤在炮采条件下底板变形破坏的机制，以告成煤矿某典型“三软”工作面为研究对象，通过现场实测、理论解析和数值模拟等方法对采动底板变形破坏深度和机制进行了综合研究。基于对上、下巷道底板现场应变感应数据的分析，得出了该面“三软”煤层回采巷道底板变形破坏的深度、层位及其受采动煤壁前方应力峰值的宽度和影响范围。在此基础上，建立了煤层底板应力分析计算的工程地质模型，运用理论解析和数值计算分别推导和模拟了在矿山压力作用下随着工作面推进，采动煤层底板不同深度基本应变解析解和应力与变形的分布规律。
　　위료탐구정주광구후적연정、연저화연매재포채조건하저판변형파배적궤제，이고성매광모전형“삼연”공작면위연구대상，통과현장실측、이론해석화수치모의등방법대채동저판변형파배심도화궤제진행료종합연구。기우대상、하항도저판현장응변감응수거적분석，득출료해면“삼연”매층회채항도저판변형파배적심도、층위급기수채동매벽전방응력봉치적관도화영향범위。재차기출상，건립료매층저판응력분석계산적공정지질모형，운용이론해석화수치계산분별추도화모의료재광산압력작용하수착공작면추진，채동매층저판불동심도기본응변해석해화응력여변형적분포규률。
To research the deformation and failure mechanism of “three-soft” coal seams under blast-ing mining conditions in Zhengzhou mining area, by comprehensively using field measurement, theoretical analysis and numerical simulation, the deformation and failure depth and mechanism of mining floors in a typical coal face in Gaocheng Coal Mine were studied in this paper. The deformation and failure depth and stratum in the roadway floor of the “three-soft” coal seam, as well as the width and influence scope of peak stress ahead of the coal face were obtained by analyzing the monitoring da-ta of strain sensors in boreholes at the haulage and ventilation roadways. On this basis, the engineering geological model for floor stress calculation was established, and the analytical solution of basic strain and the distribution law of deformation and stress in mining floor at different depths along with the face advancing were deduced and simulated by theoretical analysis and numerical simulation.