Generation of geological database for liquefaction hazard analysis in Kathmandu Valley, Nepal

B. Piya, C.J. van Westen, T. Woldai

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The fluvio-lacustrine deposit of Kathmandu basin has been studied using 185-borehole logs information ranging in depth from 35 meter to 575 m. The entire basin fills in this study is divided into three distinct layers as Bottom of Lake deposit, Lake deposit and top of Lake deposit and layer models for each are generated using ILWIS 3.2 version. The layer models also led to generate thickness map of each layer. The layer models were compared with the lithological cross section drawn along the same direction and it was correlated. Next, a liquefaction susceptibility map for Kathmandu Valley has been produced using 328 shallow boreholes with depth less than 30 m. Both qualitative and quantitative methods were applied for the analysis and were compared. Finally a liquefaction susceptibility map of Kathmandu valley has been prepared.
Original languageEnglish
Title of host publicationProceedings of the International Symposium on Geo-disasters, Infrastructure Management and Protection of World Heritage Sites, 25-26 November 2006, Kathmandu, Nepal
Place of PublicationKathmandu, Nepal
PublisherNepal Engineering College
Pages9-25
Publication statusPublished - 2006
EventInternational Symposium on Geo-disasters, Infrastructure Management and Protection of World Heritage Sites 2006 - Kathmandu, Nepal
Duration: 25 Nov 200626 Nov 2006

Conference

ConferenceInternational Symposium on Geo-disasters, Infrastructure Management and Protection of World Heritage Sites 2006
Country/TerritoryNepal
CityKathmandu
Period25/11/0626/11/06

Keywords

  • ESA
  • ADLIB-ART-1408

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