CAJ | 학술논문

本文在现场监测分析的基础上，结合地基变形特征的模拟，研究原地基、反压后的地基和固结后的反压地基的变形与稳定性变化情况，重点比较三种状态地基的竖向沉降、横向位移、剪应力、剪应变、孔隙水压力的变形程度。研究结果表明：相对于原路基来说，反压后的路基使原路基的坡脚产生较大的竖向沉降，并产生指向路基中点的水平位移，而且最大剪应力、最大剪应变及孔隙水压力都有所减少。相对于反压后的路基来说，固结后的反压路基使地基在面层范围内有了较大的竖向沉降，并产生指向路基中点的水平位移，而且最大剪应力、最大剪应变及孔隙水压力都有所减少。文章最后综合实测的沉降量与数值模拟，对路基最终的工后沉降做出了预测。
본문재현장감측분석적기출상，결합지기변형특정적모의，연구원지기、반압후적지기화고결후적반압지기적변형여은정성변화정황，중점비교삼충상태지기적수향침강、횡향위이、전응력、전응변、공극수압력적변형정도。연구결과표명：상대우원로기래설，반압후적로기사원로기적파각산생교대적수향침강，병산생지향로기중점적수평위이，이차최대전응력、최대전응변급공극수압력도유소감소。상대우반압후적로기래설，고결후적반압로기사지기재면층범위내유료교대적수향침강，병산생지향로기중점적수평위이，이차최대전응력、최대전응변급공극수압력도유소감소。문장최후종합실측적침강량여수치모의，대로기최종적공후침강주출료예측。
Based on analysis of site monitoring, combining with simulation of foundation deformation characteristics, we studied the deformation and stability of the original foundation, the back berm foundation and consolidation foundation. Difference between three kinds of foundation’s settlement, lateral displacement, shear stress, shear strain and pore water pressure were compared. Research results showed that: compared with the original subgrade, the back berm subgrade showed a bigger vertical settlement produced horizontal displacement which point to the center of the subgrade, and the maximum shear stress, maximum shear strain, pore water pressure reduced. Compared with the back berm subgrade, the consolidation subgrade had bigger vertical settlement within the surface layer range, produced horizontal displacement which point to the center of the subgrade, and the maximum shear stress, maximum shear strain, pore water pressure reduced. Finally the measured settlement and numerical simulation were studied to forecast the final residual settlement of subgrade.