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Closed-form heave solutions for expansive soils

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Closed-form heave solutions for expansive soils

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Title: Closed-form heave solutions for expansive soils
Author: Rao, R. Rama; Rahardjo, Harianto; Fredlund, Delwyn G.
Copyright year: 1988
Abstract: During the past decade, the theory for heave prediction has developed within the context of unsaturated soil behavior and has become a valuable tool for geotechnical practice. The laboratory procedures for testing expansive soils have also been essentially standardized. The heave prediction theory is briefly reviewed in this paper, and the importance of sampling disturbance is emphasized. Closed-form solutions are presented for several possible situations that can be applied to engineering practice. In all cases, the soil deposit is assumed to be homogeneous, and the swelling pressure is assumed to be constant with depth. The closed-form solutions are presented for the calculation of total heave when: (1) A portion or the entire “active depth” is wetted; (2) a portion of the expansive soil is excavated; and (3) the excavated portion is backfilled with a nonexpansive soil.
Subject: DRNTU::Engineering::Civil engineering::Geotechnical.
Type: Journal Article
Series/ Journal Title: Journal of geotechnical engineering
School: School of Civil and Environmental Engineering
Rights: © 1988 ASCE
Version: Accepted version

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