Correlation of sampling effect in Hong Kong

Kwok Wing Chau

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


Laboratory simulation of the field sampling process in the current practice and the investigation on the effect of sampling disturbance on the soils in terms of the dry densities employing two sampling tubes of different wall thickness are presented. Two types of residual soils most commonly found in Hong Kong, namely, decomposed granite and decomposed volcanics, were tested in the remoulded state under a wide range of moisture contents. The disturbed soil densities from the driven sampling tubes were compared with the soil densities prepared by different compaction operations. The results demonstrate that the sampling process yields very good samples of medium dense soils, but tends to densify loose soils and loosen dense soils. Correlation of dry densities were derived under different moisture contents, thicknesses of the sampling tube and degrees of compaction, which are useful in evaluating site investigations to truly reflect the subsurface soil properties.
Original languageEnglish
Title of host publicationDev Geotech Aspects Embankments Excavations Buried Struct
PublisherPubl by A.A. Balkema
Number of pages16
ISBN (Print)9054100192
Publication statusPublished - 1 Dec 1991
EventDevelopments in Geotechnical Aspects of Embankments, Excavations, and Buried Structures - Bangkok, Thailand
Duration: 1 Dec 1991 → …


ConferenceDevelopments in Geotechnical Aspects of Embankments, Excavations, and Buried Structures
Period1/12/91 → …

ASJC Scopus subject areas

  • Engineering(all)


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