CAJ | 학술논문

地下工程顶板变形破坏是一个复杂的非线性过程，单一监测结果难以对其稳定性状态准确判别。基于数理统计的方法推导了顶板变形过程中位移监测样本的标准差，根据结果分别表征了无变形、稳定变形和加速变形3个顶板变形阶段。结合当前岩体破坏声发射特征参数分析试验结果，对顶板岩体变形过程的位移与声发射监测结果进行组合分析，提出了顶板稳定性识别的4种模式。结合某矿工程实例，对回采过程顶板破坏进行了准确预测。研究结果为地下工程顶板稳定性监测结果分析提供了数据处理新方法，加强了顶板稳定性识别的准确性。
지하공정정판변형파배시일개복잡적비선성과정，단일감측결과난이대기은정성상태준학판별。기우수리통계적방법추도료정판변형과정중위이감측양본적표준차，근거결과분별표정료무변형、은정변형화가속변형3개정판변형계단。결합당전암체파배성발사특정삼수분석시험결과，대정판암체변형과정적위이여성발사감측결과진행조합분석，제출료정판은정성식별적4충모식。결합모광공정실례，대회채과정정판파배진행료준학예측。연구결과위지하공정정판은정성감측결과분석제공료수거처리신방법，가강료정판은정성식별적준학성。
The roof deformation of underground projects is a complex nonlinear process. The single monitoring means is insufficient to determine its roofing stability accurately. Standard deviation of displacement monitoring sample for roofing deformation process is deduced based on mathematical statistics. Three deformation stages for stope roofing, non-deformation, stable deformation and accelerated deformation are characterized according to the fore-mentioned results. Acoustic emission characteristics are analyzed during rock deformation and failure according to the combined analysis results of displacement and acoustic emission. The stability criterion of roof is divided into four kinds of modes. Combined with the engineering example of a mine, the roof failure is accurately predicted during mining process. The result provides a new data processing method for stability analysis of roof of underground projects by improving the accuracy of roof stability criterion.