| Application of Ultra-shallow Seismic Survey to the Wanggezhuang Fault in Qingdao |
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| 作者姓名： | Yang Qiyan You Huichuan Di Long |
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| 作者单位： | Hebei GEO University, Shijiazhuang 050031, China,Institute of Geophysics, China Earthquake Administration, Beijing 100081, China,Hebei GEO University, Shijiazhuang 050031, China |
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| 基金项目： | This project sponsored by the PhD Research Foundation of Hebei GEO University (BQ2017027). |
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| 摘 要： | At present, there is less theoretical research and practical experience in the aspect of ultra-shallow seismic exploration to the target layers at depths of only tens of meters both at home and abroad. Seismic exploration plays an important role in the location of faults and active structures, but the depth dozens of meters below the ground surface is the blind area of any kind of deep and shallow seismic exploration. Starting from the point of view of detecting urban active faults, and using related theories and methods of geology, geophysics and mathematics, the paper discusses the preconditions for acquiring efficient ultra-shallow seismic survey results in complicated geological backgrounds in Qingdao. Taking the Qingdao area as an example in this paper, we study the depth condition of Quaternary deposits, and apply 4-8 stacking folds to satisfy the requirement to get the exploration results with high-resolution and high-SNR. Preliminary results reveal that selecting a proper surveillance layout is one of the keys to acquire authentic exploration results in ultra-shallow P-wave reflection exploration. Our results also show that ultra-shallow seismic reflection method in detecting faults in the Qingdao area has good application prospects.
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| 关 键 词： | Ultra shallow seismic survey Observation system Wanggezhuang fault f-k filtering |
| 收稿时间： | 2018/1/5 0:00:00 |
Application of Ultra-shallow Seismic Survey to the Wanggezhuang Fault in Qingdao |
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| Yang Qiyan,You Huichuan,Di Long.Application of Ultra-shallow Seismic Survey to the Wanggezhuang Fault in Qingdao[J].Earthquake Research in China,2018,32(4):574-583. |
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| Authors: | Yang Qiyan You Huichuan and Di Long |
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| Institution: | Hebei GEO University, Shijiazhuang 050031, China,Institute of Geophysics, China Earthquake Administration, Beijing 100081, China and Hebei GEO University, Shijiazhuang 050031, China |
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| Abstract: | At present, there is less theoretical research and practical experience in the aspect of ultra-shallow seismic exploration to the target layers at depths of only tens of meters both at home and abroad. Seismic exploration plays an important role in the location of faults and active structures, but the depth dozens of meters below the ground surface is the blind area of any kind of deep and shallow seismic exploration. Starting from the point of view of detecting urban active faults, and using related theories and methods of geology, geophysics and mathematics, the paper discusses the preconditions for acquiring efficient ultra-shallow seismic survey results in complicated geological backgrounds in Qingdao. Taking the Qingdao area as an example in this paper, we study the depth condition of Quaternary deposits, and apply 4-8 stacking folds to satisfy the requirement to get the exploration results with high-resolution and high-SNR. Preliminary results reveal that selecting a proper surveillance layout is one of the keys to acquire authentic exploration results in ultra-shallow P-wave reflection exploration. Our results also show that ultra-shallow seismic reflection method in detecting faults in the Qingdao area has good application prospects. |
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| Keywords: | Ultra shallow seismic survey Observation system Wanggezhuang fault f-k filtering |
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