| 煤系岩石物理力学参数与声波速度之间的关系 |
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| 引用本文： | 孟召平,张吉昌.煤系岩石物理力学参数与声波速度之间的关系[J].地球物理学报,2006,49(5):1505-1510. |
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| 作者姓名： | 孟召平 张吉昌 |
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| 作者单位： | 1.中国矿业大学资源与地球科学系, 北京〓100083 2 Applied Geoscience Institute of Technical University Berlin, Ackerstrasse 76, 13355 Berlin, Germany |
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| 基金项目： | 教育部全国优秀博士学位论文作者专项基金，教育部高等学校博士学科点专项科研基金，教育部留学回国人员科研启动基金，国家自然科学基金 |
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| 摘 要： | 通过超声-时间动态测试方法系统地分析了煤系沉积岩石纵波和横波速度，计算了煤系岩石动弹性力学参数，同步测试了煤系岩石的静态力学参数，建立了煤系沉积岩石动弹性力学参数与静弹性力学参数之间和煤系岩石物理力学参数与其声波速度之间的定性定量关系.研究结果表明，煤系岩石的动弹性模量与岩石的纵波或横波速度具有很好的正相关关系，而与泊松比不具有这种正相关关系.煤系岩石的动弹性模量要大于其静弹性模量，而动泊松比要小于其静泊松比，它们之间呈线性相关关系.煤系岩石密度、单轴抗压和抗拉强度与其纵波或横波速度之间也呈正相关关系，它们分别服从二次函数、指数函数和线性函数分布.
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| 关 键 词： | 煤系岩石 声波速度 物理力学参数 |
| 文章编号： | 0001-5733（2006）05-1505-06 |
| 收稿时间： | 2005-06-02 |
| 修稿时间： | 2005-06-022006-01-27 |
Relationship between physical and mechanical parameters and acoustic wave velocity of coal measures rocks |
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| MENG Zhao-Ping,ZHANG Ji-Chang,Joachim Tiedemann.Relationship between physical and mechanical parameters and acoustic wave velocity of coal measures rocks[J].Chinese Journal of Geophysics,2006,49(5):1505-1510. |
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| Authors: | MENG Zhao-Ping ZHANG Ji-Chang Joachim Tiedemann |
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| Institution: | 1.Department of Resource and Geoscience of China University of Mining and Technology, Beijing 100083, China 2 Applied Geoscience Institute of Technical University Berlin, Ackerstrasse 76, 13355 Berlin, Germany |
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| Abstract: | The longitudinal and transverse wave velocity of sedimentary rock of coal measures is systematically analyzed by ultrasonic-time dynamic testing.The parameters of dynamic elasticity are calculated.Static mechanics parameters of the rocks are synchronously tested.The qualitative and quantitative relationships between the dynamic and static elasticity parameters,and between the physical and mechanical parameters and acoustic wave velocity of the rocks are established.The research results show that there is a good positive correlativity between dynamic modulus of elasticity and the longitudinal or transverse wave velocity,but there is no such positive correlativity between dynamic Poisson's ratio of the rocks and its longitudinal or transverse wave velocity.The dynamic elastic modulus of the rocks is higher than its static elastic modulus,while the dynamic Poisson's ratio is lower than its static Poisson's ration,and there is a linear correlativity between them.The relationships between density of the rock,uniaxial compressive strength,tensile strength and the longitudinal or transverse wave velocity are also the positive correlativity,which are best fitted by quadratic function,exponential function and linear function,respectively. |
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| Keywords: | Coal measures rocks Acoustic wave velocity Physical and mechanical parameters |
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