CAJ | 학술논문

高温作用和温度循环作用是岩石力学发展面临的新课题.从经历温度循环的裂隙岩体的微裂隙扩展机制研究入手,采用SEM仪器进行了各温度下大理岩断口细观结构试验.基于统计学理论,从细观层次对不同温度下的岩石断口微裂隙参数数据统计分析,得到了岩石微裂隙几何参数在不同温度下的分布概型,并运用Monte-Carlo随机模拟的方法,再现微裂隙在工程岩体中的分布.进行了二维裂隙网络模型的分形计算,分析不同温度条件下岩石细观损伤的分维数及其演化的分形特征,为从传统的力学方法来探索岩石内部介质的微观变化提供了理论依据和参考.
고온작용화온도순배작용시암석역학발전면림적신과제.종경력온도순배적렬극암체적미렬극확전궤제연구입수,채용SEM의기진행료각온도하대리암단구세관결구시험.기우통계학이론,종세관층차대불동온도하적암석단구미렬극삼수수거통계분석,득도료암석미렬극궤하삼수재불동온도하적분포개형,병운용Monte-Carlo수궤모의적방법,재현미렬극재공정암체중적분포.진행료이유렬극망락모형적분형계산,분석불동온도조건하암석세관손상적분유수급기연화적분형특정,위종전통적역학방법래탐색암석내부개질적미관변화제공료이론의거화삼고.
The effect of high temperature and temperature cycle is a new question in the progress of rock mechanics. Based on the evolution mechanism of microcracks in fractured rock mass which experienced temperature cycle and using scanning electron microscope(SEM), the fracture mesostructure investigation of heated marble was conducted. The data of microcrack parameters in different temperatures were processed based on statistical theory; and the regularities of distribution of microcrack parameters were obtained. The microcrack distribution in engineering rock was reappearance by means of the Monte Carlo stochastic simulation; the fractal dimension and the evolution characteristics of heated rock were studied by the fractal calculation to the two-dimension microcrack network models. It is a theory and reference for analysing the microscopic changes of inner medium by means of conventional mechanics method.