Experimental study for the effect of joint surface characteristics on stress wave propagation
文献类型：期刊论文
| 作者 | Li, Nana1,2; Zhou, Yongqiang2; Li, Haibo2
|
| 刊名 | GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 7期号:3页码:15 |
| ISSN号 | 2363-8419 |
| 关键词 | Stress wave JRC JMC Transmission coefficient Specific stiffness |
| DOI | 10.1007/s40948-021-00235-8 |
| 英文摘要 | Induced seismicity might occur during underground energy and resource exploitation. Seismic waves usually attenuate during propagation across rock joints. Joint surface configuration parameters such as the joint roughness coefficient (JRC) and joint matching coefficient (JMC) play an important role in affecting stress wave propagation and dynamic property. An experimental study was conducted by using the modified Split Hopkinson Pressure Bar (SHPB) apparatus to reveal the influence of surface characteristics (i.e., JRC and JMC) on wave propagation quantitatively. The two bars of the SHPB apparatus were fabricated from high-strength gypsum. Each specimen has an artificial joint and consists of two parts produced by 3D printing. The effect of JRC and the combined effect of JRC and JMC on wave propagation and the dynamic mechanical property of joints were analyzed. The incident, transmitted and reflected waves were recorded from the strain gauges. Based on the basic theory of SHPB tests, the transmission coefficients, the stress-strain relationships and the specific stiffness of joints were obtained. According to the test results, both JRC and JMC affect stress wave propagation across joints and the joint specific stiffness to a significant extent. The results show that the transmission coefficient and specific stiffness decrease with increasing JRC (e.g., JMC = 1). In addition, for specimens with a given JRC, the transmission coefficient and specific stiffness decrease with the decrease of JMC. |
| 资助项目 | Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z017023] ; Chinese National Science Research Fund[51809258] ; Chinese National Science Research Fund[41831281] |
| WOS研究方向 | Energy & Fuels ; Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000648281500001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27277]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Nana |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Lib, Wuhan 430071, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Nana,Zhou, Yongqiang,Li, Haibo. Experimental study for the effect of joint surface characteristics on stress wave propagation[J]. GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,2021,7(3):15. |
| APA | Li, Nana,Zhou, Yongqiang,&Li, Haibo.(2021).Experimental study for the effect of joint surface characteristics on stress wave propagation.GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,7(3),15. |
| MLA | Li, Nana,et al."Experimental study for the effect of joint surface characteristics on stress wave propagation".GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES 7.3(2021):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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