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Mini-block sampler

delete2016-08-01
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PRE
AI
A
Arnfinn Emdal
A
Anders Samstad Gylland
H
Helene Alexandra Amundsen
K
Kristoffer Kåsin
M
Michael Long *
DOI:10.1139/cgj-2015-0628delete
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Abstract

Abstract

En 中文
Challenges in obtaining high quality samples of sensitive low-plasticity clay in an effective manner have been overcome by the development of the mini-block sampler. The starting point for the development of the new sampler was the Sherbrooke block sampler that was first introduced in Canada in 1979. Although the Sherbrooke block sampler can produce high quality samples, its use, particularly in industrial projects, has been limited due to the perceived high costs, practical difficulties, and the time required. This paper outlines details of the development and design of the mini-block sampler together with developed techniques for protection and transportation of the samples and preparation of specimens for laboratory testing. The sampler has been used successfully at five Norwegian clay sites. For two of the sites comparative Sherbrooke samples were available and it is shown that the quality of the mini-block samples is very high and is at least as good as that of the Sherbrooke samples. The work also demonstrates that rigging, preparation, and sampling with the mini-block sampler is fast, practical and is not labour intensive. Furthermore the resulting samples are easy to transport and handle, but still provide sufficient material for extensive laboratory testing.
Keywords:
sampling
block sampling
clay
laboratory testing
Norway
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Journal

Canadian Geotechnical Journal cover
Canadian Geotechnical Journal
IF:
3.5
Papers:
4.2K
Citations:
1.9W

Organization

N
norwegian geotechnical institute (ngi)
Scholars:
605
Papers: 695
Citations: 3
U
university college dublin
Scholars:
2.6W
Papers: 2.2W
Citations: 22