Compaction and strength control method using natural water content on embankment soil from soft mud-rock ground

Generally, a land developed by the cutting and embanking work consists of the business area and the slope area, both of which are constructed by compacting the embankment soil to a certain degree or higher, but the slope area also requires the strength necessary for slope stability. When the ground to be cut is composed of sedimentary rocks such as mud stone, the cementation degree, the weathering degree, and so on varies depending on the environment and the elapsed years after depositing, the embankment soil showing various compaction and strength characteristics. For this reason, even if the embankment ground is constructed with the required compaction degree, the strength parameters of the slope area may not satisfy the strength parameter in design. This paper reports the results of a compaction and strength control method that considers only the natural water content wn and its applicability to a cutting and embanking construction project on soft mudstone ground, where the compaction and strength properties of embankment soils differ depending on the cutting position in the ground.