Measurement of ice pressure on a concrete dam with a prototype ice load panel

Document identifier: oai:DiVA.org:ltu-76839
Access full text here:10.1016/j.coldregions.2019.102923
Keyword: Engineering and Technology, Materials Engineering, Other Materials Engineering, Teknik och teknologier, Materialteknik, Annan materialteknik, Static ice loads, Concrete dams, Dam safety, Byggmaterial, Building Materials
Publication year: 2020
Relevant Sustainable Development Goals (SDGs):
SDG 13 Climate action
The SDG label(s) above have been assigned by OSDG.ai

Abstract:

This paper presents the development and installation of a prototype ice load panel and measurements of ice load from February 2016 to February 2018 at the Rätan hydropower dam in Sweden. The design of the 1 × 3 m2 panel enables direct measurement of ice pressure on the concrete surface is based on previous experience from similar measurements with sea ice. Important features of the design are sufficient height and width to reduce scale effects and to cover the ice thickness and variations in water level. The Rätan dam was chosen based on several criteria so that the ice load is considered to be reasonably idealized against the dam structure.

For the three winters 2016, 2016/2017, 2017/2018, the maximum ice load recorded was 161 kN/m, 164 kN/m and 61 kN/m respectively. There were significant daily fluctuations during the cold winter months, and the daily peak ice loads showed a visual correlation with the daily average temperature and with the daily pattern of operation of the power station with its corresponding water level variations.

Authors

Rikard Hellgren

KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden
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Richard Malm

KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden
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Lennart Fransson

Luleå tekniska universitet; Byggkonstruktion och brand
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Fredrik Johansson

KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden
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Erik Nordström

KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden
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Marie Westberg Wilde

KTH Royal Institute of Technology, Department of Civil and Architectural Engineering, Stockholm, Sweden
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