基于Mohr-Coulomb准则的岩石弹塑性行为研究  

Study on Elastoplastic Behavior of Rocks Based on Mohr-Coulomb Criterion

作　　者：吴文祥 孙世国 尤洋 彭瑞雪 WU Wen-xiang;SUN Shi-guo;YOU Yang;PENG Rui-xue(School of Civil Engineering,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学土木工程学院,北京100144

出　　处：《价值工程》2025年第5期140-142,共3页Value Engineering

摘　　要：本文基于Mohr-Coulomb准则,对岩石的弹塑性行为进行了深入研究。通过引入Mohr-Coulomb准则的基本原理和假设,以及其在岩石力学中的应用,提出了基于Mohr-Coulomb准则的岩石弹塑性模型,并详细讨论了其本构关系和参数确定方法。结果表明,基于Mohr-Coulomb准则的岩石弹塑性模型能够较好地预测岩体的应力分布、变形特征和破坏模式。最后,讨论了该模型的局限性并提出了研究的展望。本研究对于深入理解岩石的弹塑性行为,提高地下工程的设计和施工水平,具有一定的理论和实际意义。Based on the Mohr-Coulomb criterion,the elastoplastic behavior of rocks is studied in depth.By introducing the basic principles and assumptions of the Mohr-Coulomb criterion,as well as its application in rock mechanics,an elastoplastic model of rock based on the Mohr-Coulomb criterion is proposed,and its constitutive relationship and parameter determination method are discussed in detail.The results show that the rock elastoplastic model based on the Mohr-Coulomb criterion can predict the stress distribution,deformation characteristics and failure modes of the rock mass.Finally,the limitations of the model are discussed and the prospects of the research are proposed.This study has certain theoretical and practical significance for in-depth understanding of the elastoplastic behavior of rocks and improving the design and construction level of underground engineering.

关 键 词：MOHR-COULOMB准则 弹塑性行为 本构模型 破坏模式 

分 类 号：TU45[建筑科学—岩土工程]