0sterfeld Tunnel, Advancing Vault Excavation with Closed Invert in a Rock Mass with High Horizontal Stresses
Publish place: 1st Iranian Rock Mechanics Conference
Publish Year: 1380
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
IRMC01_054
تاریخ نمایه سازی: 11 اسفند 1384
Abstract:
Within the city of Stuttgart (Germany) a number of railway and highway tunnels have been constructed in horizontal layered rnudstones, limestones and lime-sandstones of the Lower Jurassic (Black JurassiclLias a). One example is the dsterfeld tunnel at the eastern highway ring in Stuttgart-Vaihingen, which ~~ndercrosseress idential buildings and a railway line with low overburden. The stability of the construction stages and small deformations have been achieved, by an advancing vault excavation with a curved temporary invert supported by shotcrete. For the same reasons the round lengths were kept short and an advancing pipe umbrella was installed in the area of the railway crossing where the overburden amounted to only 5-6 m. As part of the design three-dimensional finite element stability analyses have been carried out. The results of these analyses were a valuable tool for the design and corrlpared well with the results of monitoring.
Authors
Watter Wittke
Prof. Dr.-lng. W. Wittke, Beratende lngenieure fiir Grundbau und Felsbau GnibH (WBI), Aachen, Germany
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