Samband mellan Undergrundens Jordart och Tillstand och dess Dynamiska E-Modul (Medelmodul) vid Olika Arstider: En Preliminaer Undersoekning (Relationship between Type and Condition of Soil in the Subgrade and the Dynamic E-Modulus (Mean Modulus) of the Soil during Different Seasons of the Year: A Preliminary Investigation)

摘要

The purpose of the investigation described in this report is to obtain information on the loadbearing capacity, expressed as a dynamic E-modulus value, of different types of soil and the way in which the E-modulus varies with the condition of the soil (in different seasons) when this constitutes the subgrade for a gravel road pavement. The E-modulus value has been estimated from falling weight tests (two-point tests) on gravel roads in Linkoping area during a period of 1 year. Ground investigations, water ratio analyses and measurements of frost depth limits have been made in order to describe the various types of soil and their condition. The investigation covers 6 sedimentary subgrades and 2 morainic subgrades.