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Stress and Deformation in Twin Tunnel and Support Design Optimization at Sanga Pass—Nepal Using Numerical Modeling

  • 2025
  • OriginalPaper
  • Chapter
Published in:
Authors
Susmita Aryal
Satyam Yadav
Swostika Dhakal
Tanuj Bhatt
Sudarshan Gautam
Published in
Proceedings of GeoMandu 2024 Volume 3
Publisher
Springer Nature Singapore

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Abstract

This chapter delves into the intricate world of tunnel construction at Sanga Pass, Nepal, highlighting the challenges posed by the region's complex geology. The study focuses on stress and deformation behavior in twin tunnels, utilizing numerical modeling techniques to optimize support design. Key topics include the impact of rock joints and discontinuities on tunnel stability, the influence of overburden depth and tunnel alignment on stress distribution, and the application of the finite element method (FEM) for accurate geotechnical analysis. The research provides a comprehensive assessment of rock mass properties and in situ stress conditions, offering valuable insights for optimizing primary support systems. Through detailed geological mapping and empirical correlations, the study presents a robust framework for enhancing the safety and cost-effectiveness of tunnel construction projects in similar geological settings.
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previous chapter Understanding the Effect of Soil Types in Bearing Capacity for Shallow Square Footings
next chapter Finite Element Analysis of Piled Raft Foundation System
Title
Stress and Deformation in Twin Tunnel and Support Design Optimization at Sanga Pass—Nepal Using Numerical Modeling
Authors
Susmita Aryal
Satyam Yadav
Swostika Dhakal
Tanuj Bhatt
Sudarshan Gautam
Copyright Year
2025
Publisher
Springer Nature Singapore
Book
Proceedings of GeoMandu 2024 Volume 3

Print ISBN: 978-981-9685-31-8

Electronic ISBN: 978-981-9685-32-5

Copyright Year: 2025

DOI
https://doi.org/10.1007/978-981-96-8532-5_6
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