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Vol 146
Pages:
87-91
Download volume:
RUS
Article

Indices of stability of Proterozoic clay exposures in tunnel faces

Authors:
E. E. Martirosyants
About authors
  • Saint Petersburg Mining University
Date submitted:
2000-06-30
Date accepted:
2000-07-10
Date published:
2001-10-03

Abstract

A dependence of Proterozoic clays in the faces of tunnels under construction from different factors affecting them, i.e. the depth of the seam, thickness of clays up to the Quaternary sediments, prognostic properties of rocks and tunnels diameter is analysed. Indexes of exposed rocks stability in different schemes of rock deformation are offered. The mentioned indexes can be recommended for underground surveying when forecasting surface deformation in underground construction works.

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