CAJ | 학술논문

采用有限元法与复合法，分析了加筋地基土体上条形基础沉降的平面应变问题．采用有限元法得到条形基础刚度矩阵。采用复合解析法，将加筋地基土体中加筋体处理为上部正交各向异性土层．利用该方法可得到条形基础的荷栽一沉降变形．本方法计算程序编制简单，与文献结果比较，可验证本方法的正确性．数值计算结果表明，当加筋条层间距为L／6（L为条形基础底宽）时，条形基础中心点的沉降最小．
채용유한원법여복합법，분석료가근지기토체상조형기출침강적평면응변문제．채용유한원법득도조형기출강도구진。채용복합해석법，장가근지기토체중가근체처리위상부정교각향이성토층．이용해방법가득도조형기출적하재일침강변형．본방법계산정서편제간단，여문헌결과비교，가험증본방법적정학성．수치계산결과표명，당가근조층간거위L／6（L위조형기출저관）시，조형기출중심점적침강최소．
A plane strain elastic interaction analysis of a strip footing resting on a reinforced soil bed has been made by using a combined analytical and finite element method （FEM）. In this approach the stiff- ness matrix for the footing has been obtained. For the reinforced soil bed, the stiffness matrix has been ob- tained using an analytical solution. The reinforced zone has been idealized as an equivalent orthotropic in- finite strip. The load deformation behaviors of the reinforced soil obtained using the above modeling has been compared with some available analytical results. Numerical results show that：for all the types of rein- forcement contlgurations considered, keeping the value of vertical spacing of reinforcements as L/6 （L is the width of footing） appears to be more beneficial since the maximum value of settlement reduction at the centre of the footing is observed.