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A New Rainfall Threshold Model for Predicting Ground Movement Occurrences Based on Geotechnical Monitoring Data the at the Hai Van Pass

  • Nguyen Huy CuongEmail author
  • Pham Huy Giao
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 62)

Abstract

Hai Van station is one of the most important railway stations in Vietnam, where landslides have occurred, especially during the rainy season. At this site a modern real time monitoring system has been set up. In this study, rainfall and soil displacement data were collected and analyzed by three methods, i.e., Caine (1980); Lumb (1975) and Kanungo & Sharma (2014). The results from three methods were compared and as a result, a modification from Lumb’s method was proposed. The paper found that with rainfall intensity of 27.5 mm per hour during 5 hours or with rainfall intensity of 5.68 mm per hour during 22 hours, it is sufficient to trigger potential landslide activities. The cumulative rainfall from upper 8 days with amount of 220 mm and rainfall intensity reaching at 156.5 mm per hour can also trigger potential landslide.

Keywords

landslide Hai Van station rainfall threshold geotechnical monitoring 

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Notes

Acknowledgments

Most of the data used in this study are kindly supported by the Institute of Transport Science and Technology (ITST), Vietnam.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.FECON CorporationHa NoiVietnam
  2. 2.Asian Institute of TechnologyBangkokThailand

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