NEHRP Clearinghouse
- Title
- Simplified Procedures for the Evaluation of Settlements in Sands Due to Earthquake Shaking.
- File
- PB85197887.pdf
- Author(s)
- Tokimatsu, K.; Seed, H. B.
- Source
- National Science Foundation, Washington, DC., October 1984, 48 p.
- Identifying Number(s)
- UCB/EERC-84/16
- Abstract
- On the basis of previous studies it appears that the primary factors controlling earthquake-induced settlement are the cyclic stress ratio for saturated sands with pore pressure generation and the cyclic shear strain for dry or partially saturated sands, together with the N-value for the sand and the magnitude of the earthquake. This report reviews previous studies, summarizes available information concerning the settlements of sands during earthquakes and proposes simplified methods of analysis to predict earthquake-induced settlement in both saturated and nonsaturated clean sands. Comparison of the numerical results with several case histories indicates that the methods presented in this report can be used in many cases as a first approximation for evaluating the volume changes and settlements of sands due to earthquake shaking.
- Keywords
- Evaluation; Consolidation; Stress ratio; Seismic waves; Settlement (Structural); Shear strain; Dynamic response; Earthquake engineering; Pore pressure; Shaking; Sands; Soil mechanics; Earthquakes