CAJ | 학술논문

考虑平移模式下刚性挡土墙墙后填土中的土拱效应，分析沿圆弧形拱的切线和割线方向划分微分单元对主动土压力分布的影响。在此基础上，采用二分法求解最优划分方式，得到了作用在挡土墙上的主动土压力公式。与沿切线和割线方法及试验监测结果的对比分析表明：本文方法得到的平移模式下刚性挡墙墙后主动土压力强度小于沿切线划分单元的计算结果，略大于沿割线划分单元的计算值。本文方法得到的刚性挡墙墙后主动土压力分布与模型试验结果吻合最好。
고필평이모식하강성당토장장후전토중적토공효응，분석연원호형공적절선화할선방향화분미분단원대주동토압력분포적영향。재차기출상，채용이분법구해최우화분방식，득도료작용재당토장상적주동토압력공식。여연절선화할선방법급시험감측결과적대비분석표명：본문방법득도적평이모식하강성당장장후주동토압력강도소우연절선화분단원적계산결과，략대우연할선화분단원적계산치。본문방법득도적강성당장장후주동토압력분포여모형시험결과문합최호。
Considering the soil-arching effect of retaining wall backfill of rigid translational mode , the pa-per analyzed the influence of division differential unit on along the arc arch tangent and secant .On above basis,it obtained the formula for the active earth pressure against a rigid retaining wall by means of di -chotomy to the optimum dipartition mode .Through comparing the formula with the theoretical solutions of tangent direction , secant direction and the results of measured test ,the result can be goten that the active earth pressure proposed is smaller than those of tangent direction and larger than those of secant direc -tion.The active earth pressure distribution of rigid wall backfill gotten by the method match best with the physical model test .