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International Journal of Geoengineering Case Histories
Additional Material for Paper IJGCH_1_2_4
ISSN # 1790-2045
Additional Pictures+Data File
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IJGCH_1_2_4_P01: Marlstone from tunnel area-Note the material degradation in the
presence of wate.
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IJGCH_1_2_3_P03: View of the southbound tunnel exit portal structure-The slumped mass
profile can be noted in the picture.
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IJGCH_1_2_3_P02: Weathered debris slumped atop the southbound tunnel portal structure.
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IJGCH_1_2_3_P01b: Marlstone from the tunnel area.
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IJGCH_1_2_3_P04: Vegetation covering the entry weir of the drainage sump in the area atop
tunnel portals.
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IJGCH_1_2_3_P05: View of the sump and the tree growing within it.
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Sadek and Hamad (2007). Lack of maintenance compromises tunnel structural safety. International Journal of Geoengineering Case Histories.
http://casehistories.geoengineer.org , Vol. 1, Issue 2.
IJGCH_1_2_3_P06: Close up of outwards movement-Note Bulging further along the wall close
to entry into mountain.
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IJGCH_1_2_3_P08: Damage to the tunnel lining in affected area-note recurrence at joint
locations.
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IJGCH_1_2_3_P07: Close up of longitudinal crack along portal wall.
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IJGCH_1_2_3_P09: Typical plan showing contours of the lining compressive strengths along
the southbound tunnel.
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IJGCH_1_2_3_P09b: Water damage and diagonal cracking of the lining within the tunnels.
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IJGCH_1_2_3_P10: Typical cracks and water damage survey results along the southbound
tunnel.
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IJGCH_1_2_3_P11: FEA results for Phase-2 loadinf conditions.
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IJGCH_1_2_3_P12: Remedial works-drainage within the tunnels.
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IJGCH_1_2_3_P13: Remedial works-Southbound tunnel portal structure.
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IJGCH_1_2_3_P14: Remedial works-Specifications for cracks and joint repair.
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click to enlarge
