【摘要】 采用Fortran语言和Marc软件内部相关命令,对Marc程序的粘弹性计算分析功能进行了二次开发,以扩大Marc软件对地下工程计算分析的适用性和应用范围。针对广义Kelvin模型编写了接口子程序,以模拟分析岩石和土体的蠕变现象,应用于地下结构的分析计算。通过检验算例说明了开发思路和接口子程序的正确性,并对地下结构中的隧道开挖进行了三维实例分析,结果符合隧道开挖变形规律,从而也说明Marc程序是分析岩土工程问题较理想的工具软件,具有广泛的适用性。更多还原

【Abstract】 The marc software’s visco-elastic calculation is developed secondarily by using Fortran language and correlative commands of Marc,so that it can enlarge the application of Marc software in underground engineering,Aiming at Generalized Kelvin,a user subroutine has been compiled to simulate the soil and rock’s creep,and applied to underground engineering analysis.The verification examples are given and prove the validity of secondary procedure design.Through three dimension analysis of a underground structure’s tunneling,it is shown that the result coincides with the deformation regularity of tunneling excavation,which illustrates that the Marc software is applicable and ideal tool to solve the geotechnical problem.更多还原