| 尹前锋,鲁海峰,赵逢春.考虑塑性效应的岩石蠕变Maxwall模型的改进[J].唐山学院学报,2017,30(3):55-57,66 |
| 考虑塑性效应的岩石蠕变Maxwall模型的改进 |
| A Plasticity-based Improved Maxwall Model of Rock Creep |
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| DOI：10.16160/j.cnki.tsxyxb.2017.03.012 |
| 中文关键词: 岩石蠕变 Maxwell模型 本构方程 |
| 英文关键词: rock creep Maxwall Model constitutive equation |
| 基金项目:安徽省自然科学基金项目（1508085QE89）；安徽省高校优秀青年人才支持计划项目（gxyq2017004）；安徽省大学生创新创业训练计划项目（201510361117） |
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| 中文摘要: |
| 岩石蠕变是工程中常见的问题，蠕变岩体往往具有粘性、弹性、塑性三大基本特性，文章对现有岩石蠕变模式进行了改进，即根据前人的实验结果，在Maxwall模型基础上对虎克体、牛顿体、圣文南体三种基本元件进行合理重组，并运用基本微分方程演绎新模型下蠕变本构方程。将得到的方程拟合曲线与前人试验数据进行比较，结果表明改进的模型能够反映软弱岩石的粘弹特性。 |
| 英文摘要: |
| Rock creep, with the three basic characteristics of being viscous, elastic and plastic, is a common problem in engineering application. On the basis of the previous experimental results and Maxwall Model, the authors have improved on the existing rock creep model by restructuring Hooke, Newton and Saint Venant bodies and deduced a new model of creep constitutive equation with the basic differential equations. The fitting curve of the obtained equation has been compared with the previous experimental data and the results show that the improved model can reflect the viscoelastic characteristics of weak rock. |
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