Experimental study on the time-related characteristics of deformation of Nanning expansive soils

Hongbing Xiao, Chunshun Zhang, Jie He

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Based on one-dimensional deformation tests of Nanning expansive soils, the relationship of deformation versus time was studied. The results indicate that swelling ratio is of a hyperbolic relationship with time in single-logarithmic scale and it could be divided into two stages: during a short time at the beginning, the swelling ratio increased dramatically; and after that, it trends to be stable. Using linear regression to analyze the relationship between swelling ratios and time, simple hyperbola functions to fit the swelling ratio curves can be easily obtained and the results are much agreeable. As for shrinking-time curve, it is almost linear with time in logarithmic scale. The simple linear functions to fit shrinking curves can also be obtained, which are much agreeable. Therefore, the paper provides a new simple way to analyze the relationship of expansive soils' deformation versus time. In practical engineering, those simple relationships could be used to predict the volumetrically changes with time.Copyright ASCE 2006.

Original languageEnglish
Title of host publicationAdvances in Unsaturated Soil, Seepage, and Environmental Geotechnics - Proceedings of the GeoShanghai Conference
Pages119-126
Number of pages8
Edition148
DOIs
Publication statusPublished - 18 Dec 2006
EventAdvances in Unsaturated Soil, Seepage, and Environmental Geotechnics - Shanghai, China
Duration: 6 Jun 20068 Jun 2006

Conference

ConferenceAdvances in Unsaturated Soil, Seepage, and Environmental Geotechnics
CountryChina
CityShanghai
Period6/06/068/06/06

Cite this

Xiao, H., Zhang, C., & He, J. (2006). Experimental study on the time-related characteristics of deformation of Nanning expansive soils. In Advances in Unsaturated Soil, Seepage, and Environmental Geotechnics - Proceedings of the GeoShanghai Conference (148 ed., pp. 119-126) https://doi.org/10.1061/40860(192)11