| 单轴压缩下砂岩内部P波速度的变化特征 |
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| 引用本文： | 邵顺妹,李刘玉,周建国,单登龙,高中强,谢原定. 单轴压缩下砂岩内部P波速度的变化特征[J]. 地震工程学报, 1983, 5(1): 85-90 |
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| 作者姓名： | 邵顺妹 李刘玉 周建国 单登龙 高中强 谢原定 |
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| 作者单位： | 兰州地震研究所(邵顺妹，李刘玉，周建国，单登龙，高中强)，兰州地震研究所(谢原定) |
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| 摘 要： | 平行或垂直岩石层理进行单轴向加载直至样品破坏强度的95%左右稳压,在充水或不充水时,观测到的干燥样品及饱和样品内部P波速度的变化特征如下: 1.样品临破坏前P波速度在垂直与平行岩石层理方向上的变化具有很大的差异性。2.P波振幅及波形也随着应力的不断增加而发生变化。
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VARIATION CHARACTERISTICS OF P-WAVE VELOCITY IN THE SANDSTONE UNDER UNIAXIAL COMPRESSION |
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| Shao Shun-mei,Li Liu-yu,Zhou Jian-guo,Shan Deng-long,Gao Zhong-qiang and Xie Yuan-ding. VARIATION CHARACTERISTICS OF P-WAVE VELOCITY IN THE SANDSTONE UNDER UNIAXIAL COMPRESSION[J]. China Earthguake Engineering Journal, 1983, 5(1): 85-90 |
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| Authors: | Shao Shun-mei Li Liu-yu Zhou Jian-guo Shan Deng-long Gao Zhong-qiang Xie Yuan-ding |
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| Affiliation: | Lanzhou Seismological Institute,Lanzhou Seismological Institute,Lanzhou Seismological Institute,Lanzhou Seismological Institute,Lanzhou Seismological Institute and Lanzhou Seismological Institute |
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| Abstract: | The rocks of parallel bedding and vertical bedding were loaded under uniaxial compression until stable was kept about 95 percent of failure intensty of the specimen. When the specimen were full of water or dry, the variation characteristics of p-wave velocities interior and saturated specimen observed were as follows:1. Changes of p-wave velocities were quite different in both direction of parallel bedding and that of vertical bedding when the rock would soon become a failure.2. The amplitude of p-wave and its shape varied with ever-increasing stress. |
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