欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
从岩石材料的细观结构层次出发，应用损伤力学和热弹性理论，对热力耦合作用下岩石破裂过程中热-应力相互作用关系进行了分析，初步建立了细观岩石热-力（TM）耦合数值模型，探讨了TM耦合作用下岩石材料的细观结构损伤及其诱发的材料力学性能演化机制，把岩石热固耦合问题的研究从应力状态分析深入到损伤、破坏过程分析之中。运用该数值模型对某硬岩实验室开展的原位尺度实验中的废料处理井间柱稳定性进行了模拟分析，其应力场、岩石剥离破坏形态及破坏诱发的AE特性等均与实验监测结果表现出了较好的一致性，证明了该数值模型的合理性和有效性。
英文摘要：
Based on the heterogeneous characteristics of rock at mesoscopic level, the thermal-mechanical coupled behavior during the failure process of rock subjected to thermal stress is analyzed with elastic damage mechanics and thermal-elastic theory. A mesoscopic thermal-mechanical （TM Model） coupling model, implemented in RFPA, is proposed, which can be used to study the damage and failure process, as well as elastici stresses for the coupled thermo-mechanical rock problem. With the numerical model, the damage and associated mechanical property evolution of mesoscopic structure in rocks subjected to TM loading can be analyzed. Numerical simulation is carried out to investigate the stability of the rock pillar in a Hard Rock Laboratory. The numerically obtained stress field, failure pattern of pillar rock and associated AE events all agree well with the in-situ data, which shows that the proposed model is reasonable and effective, and may provide guides for the experiment design and associated applications.
同期刊论文项目
同项目期刊论文
期刊信息
位置：