| 岩石各向异性实验研究及对工程勘探的影响 |
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| 引用本文： | 宛新林,;席道瑛,;叶青,;彭曙光.岩石各向异性实验研究及对工程勘探的影响[J].中国煤炭地质,2008(8):39-41. |
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| 作者姓名： | 宛新林 ;席道瑛 ;叶青 ;彭曙光 |
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| 作者单位： | [1]安徽建筑工业学院土木工程系,安徽合肥230022; [2]中国科学技术大学地球与空间科学学院,安徽合肥230026; [3]中国煤炭地质总局物探研究院,河北涿州072750 |
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| 基金项目： | 国家自然科学基金项目与安徽省教育厅基金项目联合资助（40174050,2005KJ003） |
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| 摘 要： | 以不同的砂岩和大理岩为标本，对岩石的各向异性在应力应变关系、波速、动静杨氏模量、动静泊松比、抗压强度等方面的各向异性问题进行了测试和研究。通过实验得到岩石标本在平行层理和垂直层理方向上述物理性质存在着的差异情况和变化规律，分析和探讨了岩层的各向异性对工程勘探工作带来的影响情况。指出地壳介质的岩体各向异性对地球物理勘探来说是不能忽视的，尤其是各向异性会导致横波分裂，影响横波勘探的精度，但同时也有助于了解岩体中裂纹结构的信息，做出工程事故的准确预报。
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| 关 键 词： | 岩石 各向异性 杨氏模量 工程勘探 |
Experimental Study of Rock Anisotropy and Its Impact on Engineering Investigation |
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| Institution: | Wan Xinlin, Xi Daoying, Ye Qing and Peng Shuguang (1. Department of Civil Engineering, Anhui Institute of Architecture and Industry, Hefei, Anhui 230022; 2. School of Earth and Space Science, University of Science and Technology of China, Hefei, Anhui 230026; 3. Geophysical Exploration Research Institute, CNACG, Zhuozhou, Hebei 072750) |
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| Abstract: | To use different sandstone and marble specimens tested and studied rock anisotropy aspects of stress-strain relationship, wave velocity, dynamic and static Young＇s modulus, dynamic and static Poisson＇s ratio, compressive strength. Through experiments worked out rock specimens＇ physical property differences and changing patterns based on the specimen parallel or perpendicular to bedding plane respectively. Analyzed and discussed impact of rock anisotropy on engineering investigation works. Pointed out the earth crust medit, m rock mass anisotropy impact to geophysical prospecting must not to be ignored, especially the anisotropy can causes shear wave splitting to impact precision of shear wave prospecting on the one hand, while on the other hand, it is helpful to find out fissure structural information in rock mass and correct prediction of engineering accident. |
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| Keywords: | rock anisotropy Young＇s modulus engineering investigation |
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