Application of P-S method in the shallow fine structure detection in North China Plain

WANG Xiaojiang; WANG Kai; ZHANG Kai; YUE Hangyu; ZHANG Baowei

doi:10.12097/j.issn.1671-2552.2022.2-3.018

2022 Vol. 41, No. 2-3

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Article navigation > Geological Bulletin of China > 2022 > 41(2-3): 407-415

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WANG Xiaojiang, WANG Kai, ZHANG Kai, YUE Hangyu, ZHANG Baowei. Application of P-S method in the shallow fine structure detection in North China Plain[J]. Geological Bulletin of China, 2022, 41(2-3): 407-415. doi: 10.12097/j.issn.1671-2552.2022.2-3.018

Citation:

WANG Xiaojiang, WANG Kai, ZHANG Kai, YUE Hangyu, ZHANG Baowei. Application of P-S method in the shallow fine structure detection in North China Plain[J]. Geological Bulletin of China, 2022, 41(2-3): 407-415. doi: 10.12097/j.issn.1671-2552.2022.2-3.018

Application of P-S method in the shallow fine structure detection in North China Plain

1.
Institute of Geophysical and Geochemical Exploration, CAGS, Langfang 065000, Hebei, China
2.
The National Center for Geological Exploration Technology, Langfang 065000, Hebei, China

Received Date: 28 August 2020

Revised Date: 20 November 2020

Publish Date: 15 March 2022

Abstract

Abstract

In view of the situation that urban planning requires more and more precision of urban underground space detection, a pilot study of shallow P-S wave exploration was carried out near the Xiong'an New Area in North China Plain.The parameters of field data acquisition, data processing flow, key techniques and test results are described in detail from the aspect of method and technology.The study has resulted in fine geological structure and velocity distribution of the shallow layer in the test area, and P -wave and S-wave section have good contrast in the depth domain.In the study area, the detective depth of P-wave method is about 700 m, and the lowest detective depth is 24 m, the overall resolution is 4 m; the S- wave detective depth is about 220 m, the shallowest detective depth is 9 m, and the overall resolution is about 1 m.The S-wave makes up for the deficiency of the blind area and insufficient resolution of P-wave in the shallow layer, which improves the accuracy of the shallow structure division and fault location.The P-wave makes up for the defect of shallow detecting depth of S-wave.
- underground space /
- Xiong'an New Area /
- P-S wave /
- fine geological structure /
- geological survey engineering

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References

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