Effect of bedding planes on wave velocity and AE characteristics of the Longmaxi shale in China
文献类型：期刊论文
| 作者 | Hu, Xiaoming1,2; Xu, Feng1,2; Yang, Chunhe1; Guo, Yintong1; Wang, Lei1; Hou, Zhenkun3; Li, Haoran4; Wang, Tongtao1 |
| 刊名 | ARABIAN JOURNAL OF GEOSCIENCES
 |
| 出版日期 | 2017 |
| 卷号 | 10期号:6页码:- |
| 关键词 | Longmaxi shale Bedding planes Acoustic emission Wave velocity Mechanical properties |
| ISSN号 | 1866-7511 |
| DOI | 10.1007/s12517-017-2943-y |
| 英文摘要 | The experimental work described in this paper was carried out in order to discover more about the effects of bedding planes on wave velocity and acoustic emission (AE) characteristics of shale. Two groups of specimens, which were collected from the Longmaxi shale outcrop in Chongqing, China and cored perpendicular and parallel to the bedding planes, were tested under uniaxial compression, and the wave velocity and AE were monitored. There were obvious differences in the acoustic characteristics of shale with different bedding plane orientations. The experimental results show that (1) the average increasing rates of P-and S-wave velocities were 39.86 and 54.41%, respectively, for the specimen with a load perpendicular to the bedding planes (Y-0). The P-wave velocity and axial strain of specimen show a marked logarithmic relationship. However, the average increasing rates of P-and S-wave velocities were 5.44 and 10.54%, respectively, for the specimen with a load parallel to the bedding planes (Y-90). The good linear relationship between P-wave velocity and axial strain before failure of specimen has been built. Generally, S-wave velocity was more sensitive to axial strain than P-wave velocity. (2) AE characteristics for Y-0 showed that a few signals. quiet period. stable increase -> steep increase; for Y-90: quiet period -> stable increase -> sudden increase -> sharp increase -> The AE energy for two groups of specimens was concentrated on low and middle of amplitudes (45-80 dB), but the proportion of amplitudes (80-100 dB) and the total counts of AE for Y-0 was 1.95, 2.2 times as much as that for Y-90, respectively. The results preliminarily revealed the effect of bedding orientation on the wave velocity and AE properties of shale and may provide guidance for the improvement of acoustic logging and microseismic monitoring in the field. |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000396895200016 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4024]  |
| 专题 | 岩土力学所知识全产出_期刊论文 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomechan & Geotech Engn ; 2.Univ Chinese Acad Sci ; 3.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control ; 4.Shijiazhuang Tiedao Univ, Struct Hlth Monitoring & Control Inst |
| 推荐引用方式 GB/T 7714 | Hu, Xiaoming,Xu, Feng,Yang, Chunhe,et al. Effect of bedding planes on wave velocity and AE characteristics of the Longmaxi shale in China[J]. ARABIAN JOURNAL OF GEOSCIENCES,2017,10(6):-. |
| APA | Hu, Xiaoming.,Xu, Feng.,Yang, Chunhe.,Guo, Yintong.,Wang, Lei.,...&Wang, Tongtao.(2017).Effect of bedding planes on wave velocity and AE characteristics of the Longmaxi shale in China.ARABIAN JOURNAL OF GEOSCIENCES,10(6),-. |
| MLA | Hu, Xiaoming,et al."Effect of bedding planes on wave velocity and AE characteristics of the Longmaxi shale in China".ARABIAN JOURNAL OF GEOSCIENCES 10.6(2017):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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