摘要
流变是岩土材料的一种重要的力学性质,合理地分析和模拟材料的流变对结构施工期和运行期的变形和应力控制十分重要.由于流变计算较为复杂,目前常需借助一些相关的计算软件来实现.本文首先介绍了流变分析的相关理论,然后以有限元分析的商业软件MSC.Marc为基础,进行二次开发,编制相关的计算子程序,来实现流变计算.以某抽水蓄能电站的堆石坝为算例,根据计算的结果对开发的程序进行了验证,表明开发的程序可以应用于实际工程.
Rheology is one of the most important mechanical properties of rock and soil materials.It is very important to analyze and simulate the deformation of material reasonably for deformation and stress control during construction and operation.Due to the complexity of rheological calculation,it is often necessary to use some related software to realize.Firstly,this paper introduces the theory of rheological analysis;and then the paper prepares relevant calculation subroutine to achieve the rheological calculation based on secondary development of MSC.Marc.Taking a rockfill dam of a certain pumped storage power station for example,the developed program is validated according to the calculation results,so as to show that the developed program can be applied to practical engineering.
引文
[1]刘钰,黄耀英,唐腾飞,等.大坝混凝土分数阶徐变模型探讨[J].长江科学院院报,2017,5(34):1-5.
[2]殷宗泽,等.土工原理[M].北京:中国水利水电出版社,2007:368-141.
[3]关天定,崔杰,李亚东.基于MSC.Marc二次开发的土体等价非线性粘弹性模型[J].土工基础,2011,25(6):57-59.
[4]屠立峰,包腾飞,陈波.基于MSC.Marc软件的面板堆石坝加高的可行性研究[J].三峡大学学报(自然科学版),2015,37(5):9-13.
[5]佘亚鹏,王永明,卢继旺,等.200m级面板堆石坝流变分析[J].水电能源科学,2010,4(28):90-92+160.
[6]王德信.面板堆石坝流变研究[D].南京:河海大学,2003.
[7]王瑞骏,李阳,丁占峰.堆石料流变模型参数敏感性分析的正交试验法[J].水利学报,2016,47(2):245-252.
[8]杨振伟,金爱兵,周喻,等.伯格斯模型参数调试与岩石蠕变特性颗粒流分析[J].岩土力学,2015,36(1):240-248.
[9]黄耀英,沈振中,吴中如.基于MSC.Marc二次开发进行粘弹性问题分析黑[J].长江学院院报,2006,23(6):95-98.
[10]郭典塔,周翠英,石汉生,等.对Marc软件进行二次开发及其在地下结构中的应用[J].地下空间与工程学报,2009,5(4):786-791.
[11]周伟,常晓林.高混凝土面板堆石坝流变的三维有限元数值模拟[J].岩土力学,2006,27(8):1389-1393.