CAJ | 학술논문

运用非线性有限元软件ADINA，建立了一个深基坑土钉支护结构整体三维有限元模型。研究了土钉的轴力、开挖面水平位移、坑后地面沉降、坑底隆起。结果表明：在纯土钉支护结构中，中部土钉受力最大，最大开挖面水平位移出现在开挖面顶部，坑后地表沉降曲线呈“勺子”形状，最大沉降值处距基坑边的距离约为1倍的开挖深度。
운용비선성유한원연건ADINA，건립료일개심기갱토정지호결구정체삼유유한원모형。연구료토정적축력、개알면수평위이、갱후지면침강、갱저륭기。결과표명：재순토정지호결구중，중부토정수력최대，최대개알면수평위이출현재개알면정부，갱후지표침강곡선정“작자”형상，최대침강치처거기갱변적거리약위1배적개알심도。
A whole three-dimensional finite element model of the soil nailed supporting structure for deep founda -tion pit was established by using the nonlinear finite element software ADINA .The axial forces of soil nails , the hori-zontal displacement of excavation face , the subsidence displacement of the ground behind the foundation pit and the bottom heave displacement were studied .The results showed that the axial force of central part soil nails is the biggest , the horizontal displacement at the top of excavation face is the biggest , the subsidence displacement curve of the ground behind the foundation pit is in the shape of “spoon” and the position of maximum subsidence displacement value and the edge of the foundation pit distance is about 1 times the excavation depth in the pure soil nailed supporting structure .