ABSTRACT
Rockfill is frequently used as a construction material for roadways, embankments dams, and valley fills for commercial, residential, or industrial developments. This chapter presents the results of monitoring of several large valley rockfill embankments that have been monitored for settlements for periods of up to 95 months. An unique aspect of the data is a comparison of long-term settlements of a fill that was completed in two parts; one compacted during construction and the other not compacted. This data in combination with other rockfill settlement data, clearly demonstrates the benefits of compaction and the behavior of rockfill and the relative magnitude and time rate of settlement that can be expected from the fills. In addition, data is available that has allowed an estimate of the deformation moduli of rockfill. An estimate of the compacted rockfill deformation modulus can be made by using the South Valley fill crest point settlement data.
