Application of Microtremor Exploration in Loess Strata Division
[Purposes] During the deposition process, loess is significantly influenced by climatic conditions, exhibiting distinct layering alternations between loess and paleosols. Its physical and mechanical properties also vary notably, providing favorable geophysical conditions for microtremor exploration...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Editorial Office of Journal of Taiyuan University of Technology
2025-05-01
|
| Series: | Taiyuan Ligong Daxue xuebao |
| Subjects: | |
| Online Access: | https://tyutjournal.tyut.edu.cn/englishpaper/show-2431.html |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850232155552088064 |
|---|---|
| author | ZHANG Jihong WANG Lei WANG Xiaoyan DONG Zhongji |
| author_facet | ZHANG Jihong WANG Lei WANG Xiaoyan DONG Zhongji |
| author_sort | ZHANG Jihong |
| collection | DOAJ |
| description | [Purposes] During the deposition process, loess is significantly influenced by climatic conditions, exhibiting distinct layering alternations between loess and paleosols. Its physical and mechanical properties also vary notably, providing favorable geophysical conditions for microtremor exploration of loess layers. [Methods] To validate the reliability and accuracy of microtremor exploration in loess layers division, experimental studies were conducted near the standard loess profile in Potou Village, Luochuan, and on Shaoling Yuan in Xi’an. [Results] The study results indicate that geological stratification of loess can be achieved according to changes in the inflection points and slopes of the dispersion curves derived from seismic velocity-depth profiles, as well as variations in the density of dispersion points. The accuracy of stratification is notably affected by the number of points on the dispersion curve. For shallow loess layers, stratification should employ dispersion curves corresponding to 512 and 1 024 sample points, while for deeper loess layers, those corresponding to 2 048 sample points are recommended. The difference in layer depths between those determined by borehole and microtremor explorations is less than 0.6 m. |
| format | Article |
| id | doaj-art-adc3bd0d73ba4ab4b445d969b791eee7 |
| institution | OA Journals |
| issn | 1007-9432 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Editorial Office of Journal of Taiyuan University of Technology |
| record_format | Article |
| series | Taiyuan Ligong Daxue xuebao |
| spelling | doaj-art-adc3bd0d73ba4ab4b445d969b791eee72025-08-20T02:03:16ZengEditorial Office of Journal of Taiyuan University of TechnologyTaiyuan Ligong Daxue xuebao1007-94322025-05-0156356757310.16355/j.tyut.1007-9432.202405731007-9432(2025)03-0567-07Application of Microtremor Exploration in Loess Strata DivisionZHANG Jihong0WANG Lei1WANG Xiaoyan2DONG Zhongji3Xi’an Engineering Investigation & Design Research Institute of China National Nonferrous Metals Industry Co.Ld., Xi’an, Shannxi, ChinaXi’an Engineering Investigation & Design Research Institute of China National Nonferrous Metals Industry Co.Ld., Xi’an, Shannxi, ChinaXi’an Engineering Investigation & Design Research Institute of China National Nonferrous Metals Industry Co.Ld., Xi’an, Shannxi, ChinaXi’an Engineering Investigation & Design Research Institute of China National Nonferrous Metals Industry Co.Ld., Xi’an, Shannxi, China[Purposes] During the deposition process, loess is significantly influenced by climatic conditions, exhibiting distinct layering alternations between loess and paleosols. Its physical and mechanical properties also vary notably, providing favorable geophysical conditions for microtremor exploration of loess layers. [Methods] To validate the reliability and accuracy of microtremor exploration in loess layers division, experimental studies were conducted near the standard loess profile in Potou Village, Luochuan, and on Shaoling Yuan in Xi’an. [Results] The study results indicate that geological stratification of loess can be achieved according to changes in the inflection points and slopes of the dispersion curves derived from seismic velocity-depth profiles, as well as variations in the density of dispersion points. The accuracy of stratification is notably affected by the number of points on the dispersion curve. For shallow loess layers, stratification should employ dispersion curves corresponding to 512 and 1 024 sample points, while for deeper loess layers, those corresponding to 2 048 sample points are recommended. The difference in layer depths between those determined by borehole and microtremor explorations is less than 0.6 m.https://tyutjournal.tyut.edu.cn/englishpaper/show-2431.htmlmicrotremor explorationloessgeologic layeringdispersion curvenumber of sample points |
| spellingShingle | ZHANG Jihong WANG Lei WANG Xiaoyan DONG Zhongji Application of Microtremor Exploration in Loess Strata Division Taiyuan Ligong Daxue xuebao microtremor exploration loess geologic layering dispersion curve number of sample points |
| title | Application of Microtremor Exploration in Loess Strata Division |
| title_full | Application of Microtremor Exploration in Loess Strata Division |
| title_fullStr | Application of Microtremor Exploration in Loess Strata Division |
| title_full_unstemmed | Application of Microtremor Exploration in Loess Strata Division |
| title_short | Application of Microtremor Exploration in Loess Strata Division |
| title_sort | application of microtremor exploration in loess strata division |
| topic | microtremor exploration loess geologic layering dispersion curve number of sample points |
| url | https://tyutjournal.tyut.edu.cn/englishpaper/show-2431.html |
| work_keys_str_mv | AT zhangjihong applicationofmicrotremorexplorationinloessstratadivision AT wanglei applicationofmicrotremorexplorationinloessstratadivision AT wangxiaoyan applicationofmicrotremorexplorationinloessstratadivision AT dongzhongji applicationofmicrotremorexplorationinloessstratadivision |