Insights from CPTu and Seismic Cone Penetration Testing in the Kathmandu Valley, Nepal
Open Access
- 7 May 2021
- journal article
- research article
- Published by Frontiers Media SA in Frontiers in Built Environment
Abstract
Seismic hazard assessment often relies on static piezocone penetration tests (CPTu) to estimate the cyclic resistance ratio (CRR) and for the evaluation of in situ soil behavior. This article presents CPTu data acquired in the Kathmandu valley sediments and makes use of established CPTu interpretation procedures to assess the soil in situ properties. Up to this point predominantly SPT data and limited shear wave velocity measurements have been relied upon to assess the variability and seismic response of soil deposits underlying Kathmandu. This article provides 1) additional data to add to the existing SAFER/GEO-591 database, 2) new shear-wave velocity measurements, and 3) initial estimates of CRR at the sites visited. Based on the work presented in this article, it is concluded that a more detailed methodology is needed for liquefaction assessment mainly due to the presence of saturated silts in the valley.Funding Information
- Engineering and Physical Sciences Research Council
- University of Bristol
This publication has 32 references indexed in Scilit:
- Interpretation of cone penetration tests — a unified approachCanadian Geotechnical Journal, 2009
- Analysis of Factors Influencing Soil Classification Using Normalized Piezocone Tip Resistance and Pore Pressure ParametersJournal of Geotechnical and Geoenvironmental Engineering, 2008
- Reply to the discussion by Robertson on “Liquefaction potential of silts from CPTu”Appears in Canadian Geotechnical Journal, 45: 140–141.Canadian Geotechnical Journal, 2008
- Liquefaction potential of silts from CPTuCanadian Geotechnical Journal, 2007
- Estimating liquefaction-induced ground settlements from CPT for level groundCanadian Geotechnical Journal, 2002
- Paleoclimatic changes during the last 2.5myr recorded in the Kathmandu Basin, Central Nepal HimalayasJournal of Asian Earth Sciences, 2002
- Evaluating cyclic liquefaction potential using the cone penetration testCanadian Geotechnical Journal, 1998
- Soil classification by the cone penetration test: DiscussionCanadian Geotechnical Journal, 1991
- Interpretation of cone penetration tests. Part II: ClayCanadian Geotechnical Journal, 1983
- Interpretation of cone penetration tests. Part I: SandCanadian Geotechnical Journal, 1983