CAJ | 학술논문

研究了层状岩体各向异性以及宏观力学参数分析方法，提出基于大型岩土分析软件ADINA各向异性材料模块，采用分区分级宏观力学参数模拟分析方法，结合“代表单元体”理论思想，对丹巴水电站二云片岩进行了各向异性模拟和宏观力学参数分析，研究得到丹巴片岩不同片理倾角宏观力学参数以及各向异性特征变化规律。研究结果显示，丹巴二云片岩尺度增加，平行片理向、垂直片理向变形模量Ex、Ey收敛幅度不同步， Ey变化幅度随倾角增大而增大，收敛速率更高，水平向变形模量xE 趋势较平缓，泊松比的变化规律恰好与之相反；随片理面倾角增大，丹巴二云片岩力学参数趋于极限值规律明显。
연구료층상암체각향이성이급굉관역학삼수분석방법，제출기우대형암토분석연건ADINA각향이성재료모괴，채용분구분급굉관역학삼수모의분석방법，결합“대표단원체”이론사상，대단파수전참이운편암진행료각향이성모의화굉관역학삼수분석，연구득도단파편암불동편리경각굉관역학삼수이급각향이성특정변화규률。연구결과현시，단파이운편암척도증가，평행편리향、수직편리향변형모량Ex、Ey수렴폭도불동보， Ey변화폭도수경각증대이증대，수렴속솔경고，수평향변형모량xE 추세교평완，박송비적변화규률흡호여지상반；수편리면경각증대，단파이운편암역학삼수추우겁한치규률명현。
This paper studies the anisotropic mechanical characteristics of the layered rock mass and the analysis method of macro mechanical parameters. It proposes an anisotropic material modules on the basis of ADINA, uses the partition grading macro mechanical parameters simulation method, combining with the theoretical idea of representative unit to make an analysis of anisotropic mechanical simulation and macro mechanical parameters of the two-mica-quartz schist in Danba hydropower station. From the results, the different schistose angle parameters and variation rules of the anisotropic mechanical characteristics of Danba schist are obtained. The results show that with the increasing of two-mica-quartz schist in Danba, the convergence rates of parallel and vertical schistosity deformation modulus xE and yE are not synchronized, yE amplitude increases with the increase of angle, it has a higher convergence rate. The trend of horizontal deformation modulus xE is more gentle, the variation of Poisson's ratio is just the opposite;with the schistose angle increasing, the mechanical parameters of the two-mica-quartz schist in Danba tend to the limit value obviously.