Numerical investigation on progressive fracture behaviours of macroscopic heterogeneous rock bridge
文献类型：期刊论文
| 作者 | Chen, Hongran1,2; Xue, Lei1 |
| 刊名 | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
 |
| 出版日期 | 2020-04-15 |
| 卷号 | 24期号:5页码:603-619 |
| ISSN号 | 1964-8189 |
| 关键词 | Confining compression numerical simulation rock bridge macroscopic heterogeneity fracture pattern acoustic emission |
| DOI | 10.1080/19648189.2017.1410728 |
| 英文摘要 | Failure of jointed rocks is highly dependent on the presence of rock bridges that exist across joint surfaces. It has long been assumed that such bridges are homogeneous orders, but continued investigation has found that, more often than not, they are a heterogeneous order. In this paper, the failure processes of generalised rock bridges (including two barriers and one which contains an inclusion) under compression with confinement are investigated experimentally and numerically. The impact of macroscopic heterogeneity is discussed in terms of fracture patterns and acoustic emission (AE) data amongst models. The patterns of crack propagation and coalescence are strongly dependent on macroscopic heterogeneity, and characterised by spatial distribution of AE events especially those of high magnitude. Local accelerations observed from curves of AE data suggest that failures are of heterogeneous orders. The piecewise curves separated by transforms from accelerations to decelerations are in the same exponential expression form, implying that the orders of crack development are similar. |
| WOS关键词 | CRACK COALESCENCE ; ACOUSTIC-EMISSION ; RUPTURE PROCESS ; FAULT BRECCIA ; PART I ; FAILURE ; COMPRESSION ; PROPAGATION ; SIMULATION ; SANDSTONE |
| 资助项目 | National Natural Science Foundation of China[41572311] ; National Natural Science Foundation of China[41302233] ; NSFC-Henan Joint Fund[U1704243] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS LTD |
| WOS记录号 | WOS:000521084900003 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund ; NSFC-Henan Joint Fund |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95527]  |
| 专题 | 地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室 |
| 通讯作者 | Chen, Hongran |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Hongran,Xue, Lei. Numerical investigation on progressive fracture behaviours of macroscopic heterogeneous rock bridge[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2020,24(5):603-619. |
| APA | Chen, Hongran,&Xue, Lei.(2020).Numerical investigation on progressive fracture behaviours of macroscopic heterogeneous rock bridge.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,24(5),603-619. |
| MLA | Chen, Hongran,et al."Numerical investigation on progressive fracture behaviours of macroscopic heterogeneous rock bridge".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING 24.5(2020):603-619. |
入库方式： OAI收割
来源：地质与地球物理研究所
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