The influence of geologic structure on design and construction in a moderately deformed paleozoic sequence in Eastern Australia

Stephen Fityus, A. Török, John Gibson

Research output: Contribution to journalArticle

Abstract

This paper presents a case study to illustrate the role played by geologic structures in the design and construction of major transportation infrastructure, in a setting of moderately deformed Paleozoic sedimentary rocks in eastern Australia. It describes a complex development of folding, faulting and jointing that has resulted in significant inclination of beds, juxtaposition of strata and affected the weathering characteristics of a wide range of rock types. The sequence, which displays an upward transition from marine to terrestrial sediments, comprises an interbedded succession of conglomerate, sandstone, shale and erratic volcanics and crystal tuff. Unfavorable relationships between major excavation faces, inclined beds and jointing have resulted in problems with the stability of road cuttings. Also, the presence of faults and dykes at various scales has had a significant effect on weathering and rock strength. The paper demonstrates the importance of the choice of alignment at design stage, and how a basis of good structural interpretation and geologic mapping can be used to avoid problems during construction and issues with ongoing maintenance.

Original languageEnglish
Pages (from-to)363-380
Number of pages18
JournalCentral European Geology
Volume50
Issue number4
DOIs
Publication statusPublished - Dec 2008

Fingerprint

weathering
Paleozoic
transportation infrastructure
erratic
tuff
rock
conglomerate
folding
sedimentary rock
shale
faulting
excavation
sandstone
crystal
road
sediment
alignment
effect
cutting (process)

Keywords

  • Construction
  • Design
  • Dykes
  • Faulting
  • Jointing
  • Stability
  • Volcanics
  • Weathering

ASJC Scopus subject areas

  • Geology

Cite this

The influence of geologic structure on design and construction in a moderately deformed paleozoic sequence in Eastern Australia. / Fityus, Stephen; Török, A.; Gibson, John.

In: Central European Geology, Vol. 50, No. 4, 12.2008, p. 363-380.

Research output: Contribution to journalArticle

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