CAJ | 학술논문

　　为定量描述不同应力条件下岩石材料声发射特性及其特性演变规律，分析不同应力条件下岩石声发射参数与应力、变形的量化关系，对广西高峰矿石灰岩进行了单轴压缩、拉伸和劈裂条件下的声发射特性试验，在此基础上将模糊自相似分维概念引入岩石的声发射试验分析中，就不同应力条件下岩石声发射所表现出的自相似规律进行了研究。研究表明：在压应力作用下石灰岩声发射出现短暂的“钝化期”，其声发射事件率及能量率模糊容量维记数曲线出现了“最小-回升”现象；在劈裂条件下石灰岩声发射事件频发且其声发射参数序列同样存在模糊自相似容量维特性，但其模糊容量参数的演化过程未能观测到“最小-回升”现象；在直接拉伸试验中，由于“胶结、引力”材料声发射活动具有瞬发性，不易监测，本次试验可测范围内无法计算其分维数，因此在拉伸条件下岩石试样是否具有自相似性演化规律还有待于进一步的研究。
　　위정량묘술불동응력조건하암석재료성발사특성급기특성연변규률，분석불동응력조건하암석성발사삼수여응력、변형적양화관계，대엄서고봉광석회암진행료단축압축、랍신화벽렬조건하적성발사특성시험，재차기출상장모호자상사분유개념인입암석적성발사시험분석중，취불동응력조건하암석성발사소표현출적자상사규률진행료연구。연구표명：재압응력작용하석회암성발사출현단잠적“둔화기”，기성발사사건솔급능량솔모호용량유기수곡선출현료“최소-회승”현상；재벽렬조건하석회암성발사사건빈발차기성발사삼수서렬동양존재모호자상사용량유특성，단기모호용량삼수적연화과정미능관측도“최소-회승”현상；재직접랍신시험중，유우“효결、인력”재료성발사활동구유순발성，불역감측，본차시험가측범위내무법계산기분유수，인차재랍신조건하암석시양시부구유자상사성연화규률환유대우진일보적연구。
In order to quantitatively describe the characteristics and evolution regularities of acoustic emission (AE) in different rocks under different stress conditions, the paper studied the quantitative relationship between AE pa-rameters of rocks, stress field and strain field based on laboratory tests. The paper firstly carried out the AE tests with conditions of axial compression, tension and splitting for limestone specimens of Gaofeng mine in Guangxi Provence, then introduced the fuzzy self-similarity fractal dimension concept and analyzed the self- similarity regularities of rock AE. It stated that the AE of limestone has a short deactivation period. The fussy dimension number curves of AE event ratio and energy ratio have the phenomena of “minimal rising”. In the condition of splitting, the AE event frequency and AE parameter series also have fuzzy self similar dimension characters, how-ever, there is not the“minimal rising”phenomena. In the direct tension test process, because the AE of“glue, grav-ity” material has sudden occurrence, it is not easy to be monitored, the fractal dimension can not be calculated in the monitoring scope. So, whether the rock with tension condition has the self similar character evolution is also to be studied in future.