CAJ | 학술논문

利用SPAX-2000改进型静动真三轴测试系统进行了软黏土冲击试验，借助扫描电子显微镜观测技术获取了软黏土微观结构图像；提取了孔隙个数、孔隙总面积、面积分级、孔隙总周长、平均孔径、圆度、形状系数和各向异性率共8个微观结构参数；对比了冲击荷载作用前后的微观结构参数变化。研究结果表明，冲击荷载作用下微观结构参数呈现一定的规律变化，该研究成果可为动力排水固结法处理软土地基提供微观理论依据。
이용SPAX-2000개진형정동진삼축측시계통진행료연점토충격시험，차조소묘전자현미경관측기술획취료연점토미관결구도상；제취료공극개수、공극총면적、면적분급、공극총주장、평균공경、원도、형상계수화각향이성솔공8개미관결구삼수；대비료충격하재작용전후적미관결구삼수변화。연구결과표명，충격하재작용하미관결구삼수정현일정적규률변화，해연구성과가위동력배수고결법처리연토지기제공미관이론의거。
In this paper the impact tests of soft clay have been done by using static-dynamic-true triaxial test system of modified SPAX-2000.With the help of scanning electron microscope ( SEM) technology, the microstructural images of the soft clay , and eight microstructural parameters including the number of pore, total area, the classification of area, total perimeter, the average diameter, the roundness, the shape coefficient and the anisotropy have been obtained .And the changes of microstructural parameters before and after impact load have been analyzed .The results show that the microstructural parameters un-der impact load have certain rules of change .The study can provide microscopic theory basis for dynamic drainage consolidation method of soft ground engineering design .