TITLE:
A Revisit to the Swedish Wet Compaction Method—A Case Study of the Burvattnet Dam Reconstruction
AUTHORS:
Hans Rönnqvist, Tina Påhlstorp, Daniel Gustavsson
KEYWORDS:
Soil, Compaction, Wet Compaction, Laboratory, Field Trial, Glacial Till
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.13 No.2,
June
12,
2023
ABSTRACT: The Swedish Wet compaction method allows soil compaction at higher water content than
conventional Dry compaction methods and can be used to advantage when
difficulties arise in keeping to a certain Dry compaction water content. Wet
compaction was frequently applied for dam core soils of glacial till (moraine)
up until late 1970s, and despite several advantages it is since no longer used
in engineering practice. During the reconstruction of Burvattnet Main Dam in
Sweden, the lack of dry core soil together with severe weather conditions made
Dry compaction almost impossible. On the basis of laboratory compaction tests
performed in compliance with the standard from the 1950s, and field compaction
trials on site, this paper describes the steps taken to revisit the
Wet compaction method, which made it possible to continue the filling works in keeping with the timeline of
the project.