| 透明类岩石材料内置裂隙试验研究 |
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| 引用本文： | 孙亚霖,朱珍德,林恒星.透明类岩石材料内置裂隙试验研究[J].河北工程大学学报,2015,32(3):1-4. |
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| 作者姓名： | 孙亚霖 朱珍德 林恒星 |
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| 作者单位： | 河海大学 岩土工程科学研究所, 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 南京 210098;河海大学 岩土工程科学研究所, 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 南京 210098;河海大学 岩土工程科学研究所, 南京 210098;河海大学 岩土力学与堤坝工程教育部重点实验室, 南京 210098 |
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| 基金项目： | 国家自然科学基金项目(41272329,51379065);国家重点基础发展计划(973)项目(2011CB013504);中央高校基本科研业务费专项资金资助项目(2014B33614) |
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| 摘 要： | 为了探究岩体内部裂隙的扩展破坏过程,本文研制出一种新型透明类岩石材料,在内部预制裂隙进行单轴压缩试验。试验详细观察了预制裂隙试件完全破坏总过程,分析总结了裂纹扩展的每个阶段所呈现出来的特点和规律,研究了不同长度裂隙对试件基本物理力学参数的影响,得出了裂隙长度越大,试件的单轴抗压强度和弹性模量都越低的结论。
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| 关 键 词： | 预制裂隙 单轴压缩 裂纹扩展 抗压强度 |
| 收稿时间： | 2015/3/27 0:00:00 |
Study on transparent rock-like materials within fissure |
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| Authors: | SUN Ya-lin ZHU Zhen-de and LIN Heng-xing |
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| Affiliation: | Geotechnical Engineering Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key laboratory for Geomechanics and Embankment Engineering of Ministry of Education, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Engineering Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key laboratory for Geomechanics and Embankment Engineering of Ministry of Education, Hohai University, Jiangsu Nanjing 210098, China;Geotechnical Engineering Research Institute, Hohai University, Jiangsu Nanjing 210098, China;Key laboratory for Geomechanics and Embankment Engineering of Ministry of Education, Hohai University, Jiangsu Nanjing 210098, China |
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| Abstract: | A new kind of transparent rock-like materials was developed for studying crack propagation inside instated of rail rock. It that have artificially induced internal cracks was tested under uniaxial compression. This experiment observed the overall process of the pre-test specimens fractured completely destroyed, analyzed each stage of the presentation of the crack propagation characteristics carefully and summarized the law of pre-crack damage the specimen. The experiment studied the effect of different lengths of fissure on basic physical and mechanical parameters;obtained the greater the crack length, uniaxial compressive strength and elastic modulus of the specimen are lower conclusions. These studies have important guidance for the early warning of geotechnical engineering works. |
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| Keywords: | prefabricated fissures uniaxial compression crack expand compressive strength |
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