( 4 ) the 3 - d finite element simulation model of yangchun mgo - mixed concrete is established ; meanwhile the correlative parameters boundary conditions and the simulation of construction rate are also studied by the numbers ( 4 )建立了阳春外掺mgo混凝土拱坝的三维有限元仿真模型,并对其计算分析的有关参数、边界条件以及施工进度的模拟等进行了系统研究。