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Research Reports
Filter by Keyword6 report(s) found with clay in the keywords field 1 - 6 of 6 Accurate prediction of the shear strength of swelling clays is critical for the design of infrastructure. Damage caused to U.S. infrastructure by swelling clays is estimated to be about $13 billion per year. Overestimation of strength can lead to failures, and underestimation can lead to an increase... This paper contains results of a six-state survey regarding usage and effectiveness of several chemical additives. In addition, a description, and more indepth information on the various categories of chemical additives, is presented. Lateral loading on pile groups often controls the design of these foundation systems, but their behavior when subjected to lateral loading is extremely difficult to predict. To compensate for this, factors of safety are increased, thus increasing the overall cost of a project. The purpose of this research... In certain regions of the world, designing deep foundations to withstand seismic loading is a reality. Seismic loading of structures and foundations reaches a critical state as a laterally applied force. The response of soils and foundations to repetitive lateral forces is highly complex, relegating... This report is part of an ongoing investigation on the response of individual piles and pile groups to various types of lateral loadings. This research has been undertaken on behalf of the Utah Department of Transportation (UDOT) and the Mountain-Plains Consortium (MPC).
Phase 1 of the study, involved... This report describes a study to evaluate the use of subgrade resilient modulus for the design of flexible pavements. The objectives of this initial study were to: a) investigate the relationship between resilient modulus and R-value, and b) develop a predictive equation for resilient modulus based on... |
