In Scandinavia, a lot of manholes and gullies, designed for the drainage of rain water, get damaged during winter due to frost action mainly because of the heave of frost susceptible backfill. The concrete rings are pulled apart and the joints between the rings are opened. When thawing starts, water and soil flows into the gullies through the opened joints and the inflowing material prevents the rings from returning to their original positions. In order to study the behavior of manholes and gullies with and without a newly invented rubber sleeve mounted over the joints, a field test was performed during the winter 1980/81 in Lulea, Sweden. The paper describes the instrumentation installed as well as the results obtained
Godkänd; 1982; 20080327 (cira)