CAJ | 학술논문

文章以通用有限元模拟软件 ANSYS系统为平台，结合C＃语言和GDAL/ORG开发的快速自动建模工具，对下扬子地区中生代早燕山期构造应力场进行了模拟和分析。结果表明：最大主应力高值区分布在大别山东南突出体顶端（角）和大别山东北侧的郯庐断裂带上，最大主应力次高值区多分布在断裂带两侧，且呈现强弱相间规律性，次高值区的展布方向与长江中下游褶皱轴的展布方向相吻合；长江中下游串珠状火山断陷盆地与最大主压应力等值线云图次高值区分布相一致；剪应力高值区分布在断层处或产状变化处，如郯庐断裂带、龟山-梅山断裂带、五莲断裂和江绍断裂带产状变化处、江南断裂带产状变化处；位移场特征表明早燕山期下扬子地块有由南北两翼向中东部和中西部运动的趋势，最大位移速率为40.75 mm/a ，最小为2.49 mm/a。
문장이통용유한원모의연건 ANSYS계통위평태，결합C＃어언화GDAL/ORG개발적쾌속자동건모공구，대하양자지구중생대조연산기구조응력장진행료모의화분석。결과표명：최대주응력고치구분포재대별산동남돌출체정단（각）화대별산동북측적담려단렬대상，최대주응력차고치구다분포재단렬대량측，차정현강약상간규률성，차고치구적전포방향여장강중하유습추축적전포방향상문합；장강중하유천주상화산단함분지여최대주압응력등치선운도차고치구분포상일치；전응력고치구분포재단층처혹산상변화처，여담려단렬대、구산-매산단렬대、오련단렬화강소단렬대산상변화처、강남단렬대산상변화처；위이장특정표명조연산기하양자지괴유유남북량익향중동부화중서부운동적추세，최대위이속솔위40.75 mm/a ，최소위2.49 mm/a。
The tectonic stress field of lower Yangtze region in early Yanshanian period was simulated through the finite element analog under ANSYS system ,and an automatic and quick establishment of analog was realized by using C# and GDAL/ORG .The result indicates that the high value area of the maximum principal stress distributes in the top of Dabie Mountains outstanding body and Tan-Lu fault zone ,and the secondary maximum principal stress distributes mostly in both sides of the fault and shows regularity of high stress alternating with comparatively low stress ,which is nearly parallel with the fold axis in this region .The spread of volcanic downfaulted basins in the middle and lower reaches of the Yangtze River is in accordance with the distribution of isoline nephogram of the secondary maxi-mum principal stress .The high value area of shear stress is concentrated along the fault belts and places where the occurrence of the fault changed ,such as Tan-Lu fault zone ,Guishan-Meishan fault zone ,Wulian fault zone and the sections w here the occurrences of Jiangshao fault zone and Jiangnan fault zone changed .The displacement field shows that the lower Yangtze plate in early Yanshanian pe-riod had a tendency of moving towards east and west by virtue of north-south oriented compression , the maximum displacement velocity was 40.75 mm/a ,and the minimum was 2.49 mm/a .