PROCEEDINGS OF TUNNEL ENGINEERING, JSCE
Online ISSN : 1884-9091
ISSN-L : 1345-0832
Grouting and steel pile forepiling for ground stabilization of the deposit section of andesite boulder in Kawarayu tunnel
Yoshinori TAGUCHITakashi SAITOMinoru KAIBARAMakoto UDAHaruo SASAO
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2003 Volume 13 Pages 189-194

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Abstract

Kawarayu tunnel in the JR Agatsuma line is a single-track tunnel, newly under constructing along with the substitution construction of present Agatsuma line, which will be going under water by the construction of the Yanba dam. Geological features in the most part of the tunnel is andesite with high strength, but there is a weakness part which consists of the andesite boulder deposit that fell from upper part when andesite lava was extruded. In this paper, we describe the grouting and steel pile forepiling for ground stabilization taken in this andesite deposit layer section.

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© by Japan Society of Civil Engineers
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