In-situ and laboratory geotechnical investigations (CPTu, sediment coring) performed in Lake Lucerne (Switzerland) in 2018–2020
Abstract
In the framework of an SNSF-funded SINERGIA project “Lake Tsunamis: Causes, Controls and Hazard” we performed dense geotechnical investigations along the slope-perpendicular profiles at 11 sites in Lake Lucerne, central Switzerland, where the slopes have failed in the past or might be susceptible to future failures. In total, 152 in-situ free-fall cone penetration tests with pore pressure measurement (CPTu) and laboratory analysis of 49 sediment cores were performed. In this report, we present all conducted field investigations, data processing steps, laboratory experiments and results obtained. Based on the acquired data and results of data processing, we produced a comprehensive dataset with geotechnical (e.g. undrained shear strength) and sediment-physical information (e.g. density, compression wave velocity) regarding the different types of sediments and lithologies found on the failure-prone slopes of Lake Lucerne. The derived parameters are important inputs for the analysis of the stability of sublacustrine slopes and the tsunami hazard assessment for Lake Lucerne. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000505160Publication status
publishedPublisher
Swiss Seismological ServiceOrganisational unit
02818 - Schweiz. Erdbebendienst (SED) / Swiss Seismological Service (SED)
Funding
171017 - Lake Tsunamis: Causes, Controls, and Hazard (SNF)
Related publications and datasets
Is supplemented by: https://doi.org/10.3929/ethz-b-000505211
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