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金属矿山 2018, Vol. 47 Issue (04) :67-71    DOI:
采矿工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 << Previous Articles | Next Articles >>
直剪试验下非贯通节理岩体扩展研究
李汝嘉1,齐西力2,刘远明1,余洋3
1.贵州大学土木工程学院,贵州 贵阳 550025;2.贵州建设职业技术学院,贵州 贵阳 551400;3.中国地质环境监测院,北京 100081
Research on Extension of Non-hole-through Jointed Rock Mass under Direct Shear Test
Li Rujia1,Qi Xili2,Liu Yuanming1,Yu Yang3
1.Civil Engineering College,Guizhou University,Guiyang 550025,China;2.Guizhou Vocational and Technical College of Construction,Guiyang 551400,China;3.China Institute of Geo-Environment Monitoring,Beijing 100081,China;

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摘要 通过研究非贯通节理岩体直剪试验的力学特点和理论分析,推导出工作面的软化线性曲线。应用Abaqus数值模拟软件,模拟不同法向压力、连通率、起伏角的贯通节理岩体扩展数值模拟与直剪试验,研究类岩石准脆性材料中裂缝的扩展与断裂过程区的关系,研究非贯通节理岩体扩展贯通的强度特性。优化新型的软化线性曲线,将数值模拟试验和直剪试验结果进行对比,优化后的软化曲线得出的非贯通节理岩体扩展数值模拟与直剪试验结果吻合较好。
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李汝嘉
齐西力
刘远明
余洋
关键词非贯通节理   直剪试验   数值模拟     
Abstract: By studying the mechanical characteristics and theoretical analysis of the non-hole-through jointed rock mass in the direct shear test,the softening linear curve of the working face is deduced.Abaqus numerical simulation software is used to simulate the extension and the direct shear test of through-type jointed rock mass under different normal pressure,connectivity and fluctuation angle,and study on the relationship between the fracture expansion of the quasi-brittle materials and the fracture process zone.The strength characteristics of the non-hole-through jointed rock mass in extension were studied.The new softening linear curve was optimized,and the numerical simulation test and the results of direct shear test were compared.Based on these,the numerical simulation on the extension of non-hole-through jointed rock mass obtained by the optimized softening curve agrees well with the results of direct shear test.
KeywordsNon-hole-through joint   Direct shear test   Numerical simulation     
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基金项目:国家自然科学基金项目(编号:11562005),国土资源部全国矿山地质环境信息系统建设与服务项目(编号:DD20160333)。

引用本文:   
李汝嘉, 齐西力, 刘远明, 余洋.直剪试验下非贯通节理岩体扩展研究[J]  金属矿山, 2018,V47(04): 67-71
LI Ru-Jia, QI Xi-Li, LIU Yuan-Ming, YU Yang.Research on Extension of Non-hole-through Jointed Rock Mass under Direct Shear Test[J]  METAL MINE, 2018,V47(04): 67-71
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