CAJ | 학술논문

目前在工程中广泛采用邓肯-张双曲线模型进行土体的应力和应变分析。邓肯-张E-B模型共有8个参数，并且其各项参数易于从常规三轴试验求得。通过三轴试验确定试验土的各项参数，运用FLAC3D实现该三轴试验数值模拟与试验结果对比验证，并应用于实际工程的数值模拟中。路基竖向位移计算值和监测值的对比验证了邓肯-张E-B本构模型在有限差分程序中的准确性和适用性。
목전재공정중엄범채용산긍-장쌍곡선모형진행토체적응력화응변분석。산긍-장E-B모형공유8개삼수，병차기각항삼수역우종상규삼축시험구득。통과삼축시험학정시험토적각항삼수，운용FLAC3D실현해삼축시험수치모의여시험결과대비험증，병응용우실제공정적수치모의중。로기수향위이계산치화감측치적대비험증료산긍-장E-B본구모형재유한차분정서중적준학성화괄용성。
Duncan-Chang hyperbolic model is widely used in engineering to analyze the stress and strain of soil because it can better reflect the nonlinear stress and strain of soil .Dun-can Chang E-B model has 8 parameters , which are easily ob-tained from the conventional triaxial test .Through the triaxial test, the parameters of experimental soil can be obtained , and then the FLAC3D is used to implement and verify the numeri-cal simulation and experimental results , which is to be ap-plied in the numerical simulation of practical engineering . Comparison between calculated value and monitoring value of subgrade vertical displacement shows the accuracy and appli-cability of Duncan Chang E-B constitutive model in finite difference program .