Flood Protection, Weißbach bei Lofer
Client:
Amt der Salzburger Landesregierung – Referat Schutzwasserwirtschaft
Country:
Austria
Duration:
November 2015 - July 2016
Services:
- Investigation of the excavated material regarding its suitability for embankment fill material and foundation conditions beneath the dams, including the dam base
- Sampling and coordination of laboratory experiments
- Analysis of soil investigations
- Assessment of soil mechanics experiments
- Definition of input parameters
- Design of a 2D-FE-model from the characteristic cross-section
- Dam stability and perfusion calculations using representative cross-sections.
Project objectives
Construction of flood alleviation structures in Weißbach bei Lofer.
Project description
The summer floodings of 2013 severely affected the community of Weißbach bei Lofer. Between 2015 and 2017, a flood protection dam with a support core was constructed to protect traffic routes and residential areas. Based on on-site geological investigations (trial pits) and geotechnical parameters derived from soil samples, the stability and maximum perfusion of the dams during flood events were verified using a 2D finite element model, and the requirements for the dam material parameters were defined accordingly.
Project data
• Saalach widening & flood protection dams: 15 km length
• 100-year-flood-level protection dam with support core: 755 m length
• Pump station for drainage of settlement areas
Services
Investigation of the excavated material regarding its suitability for embankment fill material and foundation conditions beneath the dams, including the dam base; sampling and coordination of laboratory experiments; analysis of soil investigations; assessment of soil mechanics experiments; definition of input parameters; design of a 2D-FE-model from the characteristic cross-section; dam stability and perfusion calculations using representative cross-sections.
