Energy-based analysis of seismic damage identification and failure mechanism of bedding structure slopes using VMD-HT and instantaneous energy spectrum
文献类型：期刊论文
| 作者 | Lv, Runtian1,2; Zhang, Chonglei1,2 ; Su, Lijun1,2
|
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2025-02-01 |
| 卷号 | 84期号:2页码:29 |
| 关键词 | Seismic damage Instantaneous energy spectrum Acceleration response Marginal spectrum Damage identification Bedding rock slope |
| ISSN号 | 1435-9529 |
| DOI | 10.1007/s10064-024-04050-9 |
| 通讯作者 | Zhang, Chonglei(zhangchonglei@imde.ac.cn) |
| 英文摘要 | The accurate identification of the characteristics of joints, fractures, extensions, and slips within the slope under earthquake action is essential for understanding the potential failure modes of bedding rock slopes (BRS). In this paper, an innovative method for separating low-frequency seismic response signals (LFSRS) and high-frequency rock damage signals (HFRDS) using VMD-HT was developed, and an index for identifying BRS internal damage using HFRDS was proposed. Three typical BRS cases types-blocky, soft-hard interbedded, and weak intercalation-included in the high seismic intensity area of southwest China were selected to prove the proposed method for separating damage signals. The seismic discrete element numerical modeling was utilized to analyze the crack development and damage evolution characteristics, and illustrate the patterns of seismic instability evolution in BRS. Through a comprehensive analysis of the time-domain, frequency-domain, and time-frequency domain signal characteristics, it was confirmed BRS exhibit a combination of LFSRS and HFRDS resulting from rock structural plane cracking and rock block collisions. The damage identification capability of the peak of marginal spectrum amplitude was assessed for LFSRS, proving its capability in locating damage and evaluating the distribution of seismic energy but failed to detect minor damage and determine the timing of damage occurrence accurately. The instantaneous high-frequency energy level index (IELh) was introduced using HFRDS, enabling the identification of crack initiation and propagation locations within the slope and pinpointing the moment of crack appearance. A quantitative relationship between the IELh index and the damage degree was finally established. The findings of this study are highly significant for the in-depth exploration of the seismic failure mechanism of the BRS landslide from the perspective of energy-based transmission characteristics. |
| WOS关键词 | TIME-FREQUENCY ANALYSIS ; EARTHQUAKE ; LANDSLIDE ; EMD |
| 资助项目 | National Natural Science Foundation of China[U22A20603] ; National Natural Science Foundation of China[2021QZKK0202] ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[IMHE-ZDRW-03] ; Science and Technology Research Program of IMHE |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001400072400001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Science and Technology Research Program of IMHE |
| 源URL | [http://ir.imde.ac.cn/handle/131551/58702]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 通讯作者 | Zhang, Chonglei |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, State Key Lab Mt Hazards & Engn Resilience, Chengdu 610041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lv, Runtian,Zhang, Chonglei,Su, Lijun. Energy-based analysis of seismic damage identification and failure mechanism of bedding structure slopes using VMD-HT and instantaneous energy spectrum[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2025,84(2):29. |
| APA | Lv, Runtian,Zhang, Chonglei,&Su, Lijun.(2025).Energy-based analysis of seismic damage identification and failure mechanism of bedding structure slopes using VMD-HT and instantaneous energy spectrum.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,84(2),29. |
| MLA | Lv, Runtian,et al."Energy-based analysis of seismic damage identification and failure mechanism of bedding structure slopes using VMD-HT and instantaneous energy spectrum".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 84.2(2025):29. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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