综合物探方法在城市隐伏断裂探测中的应用

doi:10.11720/wtyht.2021.1525

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Abstract

The existing geological data show that there are several buried faults in the main urban area of Chengdu. However, the specific location and distribution of these faults are still unclear, which poses great security risks to the comprehensive and scientific exploitation and utilization of underground space resources and the optimization of urban construction planning and layout in Chengdu. In view of such a situation, four geophysical methods, namely, micromotion survey, high-density electrical method, transient electromagnetic method and soil radon measurement, were used in this paper to comprehensively explore the buried Baojiangqiao fault in the work area. The integrated geophysical prospecting methods not only identified the stratigraphic structure along the survey line, but also obtained the location, property, attitude and scale of the buried Baojiangqiao fault. This work indicates that the integrated geophysical prospecting methods can achieve better results in the exploration of urban buried fault.

Key words： city geology concealed fault microtremor survey high-density electrical method transient electromagnetic method soil radon measurement integrated geophysical method

Received: 23 November 2020 Published: 20 August 2021

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	Articles by authors
	Wei LIU
	Tao HUANG
	Ting-Yong WANG
	Yi LIU
	Ji ZHANG
	Wen-Tao LIU
	Qi-Bin ZHANG
	Qiang LI

Cite this article:

Wei LIU,Tao HUANG,Ting-Yong WANG, et al. The application of integrated geophysical prospecting methods to the exploration of urban buried fault[J]. Geophysical and Geochemical Exploration, 2021, 45(4): 1077-1087.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1525 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I4/1077

The plane distribution of measuring line and interpreted fault

The physical parameters of work area strata

The data processing flow chart of soil radon

The geophysical exploration result maps of line L1

The interpreted stratigraphic structure information of line L1m

The interpreted fault parameters of line L1

The geophysical exploration result maps of line L2

The interpreted stratigraphic structure information of line L2m

The interpreted fault parameters of line L2

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