CAJ | 학술논문

系统分析深基坑开挖过程中土体的应力路径变化,对具体基坑工程实例进行二维有限元分析,分析基坑在开挖施工过程中的各部位的应力路径的变化.分析结果表明:基坑开挖过程中周围土体的应力路径整体表现为卸载状态,不同方向的卸荷程度存在明显不同,可以明显区分为三种不同的区域,基坑土体的应力状态与支护结构的位移密切相关.
계통분석심기갱개알과정중토체적응력로경변화,대구체기갱공정실례진행이유유한원분석,분석기갱재개알시공과정중적각부위적응력로경적변화.분석결과표명:기갱개알과정중주위토체적응력로경정체표현위사재상태,불동방향적사하정도존재명현불동,가이명현구분위삼충불동적구역,기갱토체적응력상태여지호결구적위이밀절상관.
The changes of stress path in the process of deep excavation are systematically analyzed. 2-D finite element method is used to simulate a real example of deep excavation. The changes of stress path in the various parts of deep excavation are studied in the process of construction. The results show that stress path of soil around deep excavation is in unloaded state, and the degree of unloading is significantly different in different directions. Deep excavation can be clearly divided into three regions, while the stress state of soil around deep excavation is closely related to the displacement of supporting structure.