Settlement (structural)

About: Settlement (structural) is a research topic. Over the lifetime, 11630 publications have been published within this topic receiving 88227 citations. The topic is also known as: settling.

Earthquake Induced Settlements in Saturated Sands

Abstract: Volume change measurements following cyclic loading triaxial tests on saturated sands provided data for estimating the settlement induced in a layer of saturated sand subjected to an earthquake. Expected settlements for well-designed fills where liquefaction will not occur are less than 0.5%. If liquefaction develops the reconsolidation settlement may be as much as 1 to 4%. Field data from several case history examples agree with these general predictions.

Municipal Landfill Biodegradation and Settlement

Abstract: Landfills are frequently considered for urban development, but have limited end uses due to large differential settlements, leachate generation, and gas emissions. Current landfill design with top- and bottom-liner systems minimize entry of moisture and increase the period required for stabilization of the refuse to occur. The objective of this study is to test the ability of biological enhancement to reduce the time to reach biological stabilization of the waste to non-degradable matter, and to determine the effects of biodegradation on settlement. To accomplish this, six landfill test cells were constructed to model both settlement and decomposition over extended periods. Three cells were designed to simulate bioreactor landfills, while another three were designed to simulate secure vaults. Results demonstrated that secondary settlement is linear with the logarithm of time, and decomposition is well represented by a first-order model. Comparisons indicate that in the short term there is no significant increase in the settlement rate due to biodegradation, however, extrapolation suggests that in the long term the settlement rate will likely increase as the effects of decomposition become more significant.