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工程科学前沿讲坛第269讲:美国亚利桑那大学教授学术报告会

作者:王琴 来源:采矿实验室  浏览次数: 发布日期:2018/05/30 11:01:45

讲座题目:Rock mass stability investigations around tunnels in 3-D in an underground mine in USA

人:Pinnaduwa H. S. W. Kulatilake美国亚利桑那大学教授

讲座时间:2018530日下午15:00-17:00

讲座地点:煤矿灾害动力学与控制国家重点实验室207会议室

讲座内容:

Stability and deformation of rock masses around tunnels in underground mines play significant roles on the safety and efficient exploitation of the ore body. Therefore, understanding of geo-mechanical behavior around underground excavations is important. In this study, a three-dimensional numerical model was built and stress analyses were performed by using 3DEC for an underground mine in USA using the available information on stratigraphy, geological structures and mechanical properties of rock masses and discontinuities. Investigations were conducted to study the effect of the lateral stress ratio, material constitutive models, boundary conditions and rock support system on the stability of rock masses around the tunnels. Results of the stress, displacement, failure zone, accumulated plastic shear strain and post-failure cohesion distributions were obtained for these cases. Finally, comparisons of the deformation were made between the field deformation measurements and numerical simulations.

主讲人简介:

Pinnaduwa H.S.W. Kulatilake,美国亚利桑那大学工程地质/岩土工程专业教授,国际著名岩石力学专家,亚利桑那大学岩体模拟和计算岩石力学实验室主任,美国注册工程师,美国土木工程师协会资深会员。从事岩体力学、岩土工程以及概率和数值方法在岩土工程中的应用等研究近40年,发表学术论文215篇,是22种学术期刊审稿专家,《国际岩石力学与采矿科学》和《岩土与地质工程》期刊编委。在世界各国进行过80余次特邀或主题报告,涉及结构面网络模拟、概率岩土力学、节理力学性质、岩质斜坡稳定性和岩体力学与水力学特性研究。




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