Stability Analysis of Shallow Tunnels in Soft Soils Containing Boulders

Javad Shahmoradi, Siavash Norouzi, Pedram Roghanchi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


In this paper, the stability of a shallow tunnel in an environment with the existence of boulders in a soft soil was studied. A case study of a near-surface subway line crossing heterogeneous alluviums of Tehran plain was carried out. The interaction of the soil environment with the boulders and the influence of the volume of boulders on the stability of the tunnel were investigated using 2D numerical modeling. Numerical modeling and field investigations show that the size and volume of boulders will affect the stability of shallow tunnels, and larger boulders may effectively increase the tunnel stability. Therefore, investigation of the stability of the shallow tunnel should include the effect of the volume of boulders.

Original languageEnglish
Title of host publicationSelected Studies in Geotechnics, Geo-informatics and Remote Sensing - Proceedings of the 3rd Conference of the Arabian Journal of Geosciences CAJG-3
EditorsZeynal Abiddin Ergüler, Riheb Hadji, Helder I. Chaminé, Jesús Rodrigo-Comino, Amjad Kallel, Broder Merkel, Mehdi Eshagh, Haroun Chenchouni, Stefan Grab, Murat Karakus, Sami Khomsi, Jasper Knight, Mourad Bezzeghoud, Maurizio Barbieri, Sandeep Panda, Ali Cemal Benim, Hesham El-Askary
Number of pages3
StatePublished - 2023
Event3rd Springer Conference of the Arabian Journal of Geosciences, CAJG-3 2020 - Virtual, Online
Duration: Nov 2 2020Nov 5 2020

Publication series

NameAdvances in Science, Technology and Innovation
ISSN (Print)2522-8714
ISSN (Electronic)2522-8722


Conference3rd Springer Conference of the Arabian Journal of Geosciences, CAJG-3 2020
CityVirtual, Online

Bibliographical note

Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.


  • Boulder
  • NATM
  • Shallow Tunnel
  • Soil
  • TBM

ASJC Scopus subject areas

  • Architecture
  • Environmental Chemistry
  • Renewable Energy, Sustainability and the Environment


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