Settlement Characteristic of Beach Sands and Its Evaluation

Abstract

Compression characteristics in sands under working load are an important design consideration because they are directly related to settlement response. The compressibility of sand materials is significantly dependent on soil characteristics. Sands distributed in Jeju island's coastal areas, Korea, were derived from volcanic rock or from shells. Compression tests were conducted to assess the compression characteristics of these sands. From the test results, each sand showed different behaviors due to its composition origin. The measured settlement of Jeju harbor area shows that in addition to the initial elastic compression, a considerable additional compression occurred with time. The prediction with the oedometer compression test method was well matched with the measured data. However, the empirical methods (based on elastic approach) predicted a smaller than that actually occurred because they did not consider the crushing, shattering, and rearrangement of particles, which were real phenomena in sandy soils under loading condition. Based on these studies, we recommend that the settlement of Jeju coastal area sandy soils should be estimated by conducting compression tests.

Department(s)

Civil, Architectural and Environmental Engineering

Keywords and Phrases

Jeju Island; Compression; Crushing; Rearrangement; Sandy Soils; Settlement; Shattering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 Taylor & Francis, All rights reserved.

Publication Date

01 Apr 2008

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