Experimental research on desiccation cracks in soil
Corte, Arturo E.; Higashi, Akira, 1922-
Research ReportSummary: A simple theory is proposed for crack formation and development by soil desiccation on the basis of laboratory experiments utilizing soil samples (Bloomington till) with max particle size of 1 mm diam. held in flat wooden containers. The crack pattern is more dependent on the thickness of the soil sample than on temperature or humidity. Some effect is caused also by differences in the bottom material of the containers. The area of cells made by crack patterns has a log normal size distribution. Total length of cracks decreases with increase in sample thickness. The number of sides of cells also depends on the thickness. Cracking was found to begin from the center of the soil layer and to propagate to the surface or bottom with non-uniform speed. NOTE: This file is very large. Allow your browser several minutes to download the file
U.S. Army Snow, Ice, and Permafrost Research Establishment.Engineer Research and Development Center (U.S.)
Polygons; Polygon formation; Soils; Dessication; Dessicated soils; Cracks; Soil patterns
Research report (U.S. Army Snow
Approved for public release; distribution is unlimited.