JOURNAL OF TUNNEL ENGINEERING, JSCE
Online ISSN : 1884-9105
Print ISSN : 1349-5399
ISSN-L : 1349-5399
Effects of distance between tunnel face and shotcrete support on support characteristic curve
Hiroo Kumasaka
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JOURNAL FREE ACCESS

2008 Volume 18 Pages 11-20

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Abstract

A sequential excavation analysis was made using an axisymmetric model by varyingthe distance between the tunnel face and the point where shotcrete support was erected as a parameter. As a result, it was found that the point of equilibrium would not be identical with the point of intersection of the support and ground characteristic curves, and that the point of equilibrium on support characteristic curves varied differently near or away from the tunnel face in the case where the distance between tunnel face and shotcrete support was used as a parameter.

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© by Japan Society of Civil Engineers
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