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(사)한국터널지하공간학회

ISSN : 2233-8292

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Vol.9 No.1

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Pillar Load in 2 Arch Tunnel in the Jointed Rocks

(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2007, v.9 no.1, pp.91-97

(2007). Pillar Load in 2 Arch Tunnel in the Jointed Rocks. (사)한국터널지하공간학회, 9(1), 91-97.

Abstract

on the pillar and ground deformation in 2-arch tunnel, which is excavated in the rock mass with regular discontinuities, depending on the dips of discontinuities and the construction sequences were experimentally studied. Large scale model tests in the biaxial test facility were performed. Tested model (width 3.3m, height 3.0m, and length 0.45m) for 2-arch tunnel in 1/10 scale were built with various dips. Test results show that discontinuities have greate affects on the behavior of the 2-arch tunnel, especially on the pillar loads and ground deformation.

keywords
2-Arch 터널, 절리암반, 터널굴착단계, 필라하중, 터널주변지반변형, 2-Arch tunnel, construction sequences, pillar loads, ground deformation

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