APPLICATION OF HIGH-DENSITY ELECTRICAL METHOD IN LOESS-MUDSTONE INTERFACE LANDSLIDE INVESTIGATION

WANG Lei; LI Xiaobo; SU Zhandong; CHANG Chaoyu; PENG Da

doi:10.12090/j.issn.1006-6616.2019.25.04.052

Volume 25 Issue 4

Aug. 2019

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WANG Lei, LI Xiaobo, SU Zhandong, et al., 2019. APPLICATION OF HIGH-DENSITY ELECTRICAL METHOD IN LOESS-MUDSTONE INTERFACE LANDSLIDE INVESTIGATION. Journal of Geomechanics, 25 (4): 536-543. DOI: 10.12090/j.issn.1006-6616.2019.25.04.052

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APPLICATION OF HIGH-DENSITY ELECTRICAL METHOD IN LOESS-MUDSTONE INTERFACE LANDSLIDE INVESTIGATION

doi: 10.12090/j.issn.1006-6616.2019.25.04.052

Institute of Disaster Prevention, Beijing 101601, China

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Received: 2018-11-05
Revised: 2019-05-21
Published: 2019-08-28

Abstract

Abstract

Due to special geological conditions and regional geotectonic settings, several strong earthquakes occurred in Xiji county, Ningxia province in history, which induced a large number of loess-mudstone interface landslides, and brought serious threat to the safety of local people's life and property. Therefore, it is of great significance to explore the formation mechanism and risk assessment of loess-mudstone interface landslides by studying the formation structure, depth of bedrock and spatial distribution of such landslides. By using the high-density method, the stratum structure in the slope area was detected, and the survey results were validated by the bore hole columnar section. The observations of the resistivity well reflected the stratigraphy distribution. The loose and dry loess in the surface has high electrical resistance, and drops down with water content increases. The contact zone of mudstone and loess is saturated, which has low electrical resistance. This research proves that high density electrical method has good adaptability in loess-mudstone interface landslide investigation, which can provide reliable geophysical basis for further analysis of landslide mechanism and prevention.
- Xiji County in NingXia,
- landslide,
- high-density electrical method,
- data interpretation

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References(18)

References

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APPLICATION OF HIGH-DENSITY ELECTRICAL METHOD IN LOESS-MUDSTONE INTERFACE LANDSLIDE INVESTIGATION

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APPLICATION OF HIGH-DENSITY ELECTRICAL METHOD IN LOESS-MUDSTONE INTERFACE LANDSLIDE INVESTIGATION

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