Detection of karst voids at pile foundation by full-waveform inversion of single borehole sonic data
文献类型：期刊论文
| 作者 | Liu, Liu4; Shi, Zhenming3; Tsoflias, Georgios P.2; Peng, Ming3; Wang, Yao1 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2022 |
| 卷号 | 152页码:14 |
| 关键词 | Geo-investigation Karst Borehole Seismic Inversion Pile foundation |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2021.107048 |
| 英文摘要 | Drilled boreholes are commonly used to detect rock voids and fractures in underground construction projects such as pile foundations, tunnel borings, and other near surface human activities. However, voids can be missed by direct drilling due to their limited size. Borehole sonic sounding can be used to image voids in the vicinity of the borehole. We developed a new time domain full-waveform inversion method for borehole sounding data. The FWI method employ an amplitude envelope-based objective function which captures low-frequency components to provide the initial velocity model for further inversion. Then a global correlation-based objective function is applied for FWI based on the updated initial velocity model. Numerical studies show that modeled anomalies of a single void, multiple voids and fractures are successfully delineated by the inverted Vs velocity profile. The FWI method was applied to field data from a bridge foundation project in a karst area and compared to complementary cross-hole acoustic tomography borehole profiles and drilled corehole data. The single borehole FWI inverted velocity profiles identify voids in agreement with the cross hole tomography and corehole observations. The results demonstrate that FWI is capable of imaging karst voids near drilling boreholes using borehole sonic data. |
| 资助项目 | National Natural Science Foundation of China[41731283] ; National Natural Science Foundation of China[41877234] ; National Natural Science Foundation of China[42172296] ; Fundamental Research Funds for the Central Universities[22120180538] ; Tongji University Civil Engineering Peak Subject International First-class Research Cooperation Fund[2019010201] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000744287700004 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34393]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Liu, Liu |
| 作者单位 | 1.Univ Florida, Dept Civil & Coastal Engn, Gainesville, FL 32611 USA 2.Univ Kansas, Dept Geol, Lawrence, KS 66045 USA 3.Tongji Univ, Coll Civil Engn, Dept Geotech Engn, Shanghai 200092, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Liu,Shi, Zhenming,Tsoflias, Georgios P.,et al. Detection of karst voids at pile foundation by full-waveform inversion of single borehole sonic data[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2022,152:14. |
| APA | Liu, Liu,Shi, Zhenming,Tsoflias, Georgios P.,Peng, Ming,&Wang, Yao.(2022).Detection of karst voids at pile foundation by full-waveform inversion of single borehole sonic data.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,152,14. |
| MLA | Liu, Liu,et al."Detection of karst voids at pile foundation by full-waveform inversion of single borehole sonic data".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 152(2022):14. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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