book chapter · 2023
Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass
Asifa Bano, Shipra Sinha, K. Seshagiri Rao
Cited by 0Open access
Abstract
Most urban tunnels are located at shallow depths which pass through stratified rockmass and are extremely vulnerable to impact loads such as falling heavy objects and projectiles. The present study aims to comprehend the behaviour and deformation pattern of twin tunnels in stratified rockmass under impact loads using finite element method (FEM) based numerical simulation. The analysis was carried out for various stratified rockmasses such as homogeneous, stratified horizontal layers of two, and three at an impact load of 20kg, 30kg, and 40kg. Deformation at the crown of a homogeneous rockmass is less than that at the spring line, and similar behaviour is observed in stratified horizontal layers of two and three. In comparison to stratified rockmass, homogeneous model exhibits the most damage and deformation. In the case of stratified horizontal layers of three, there was relatively less damage and deformation. This paper establishes that rockmass properties and formation thickness influences deformation under impact loads.
Cite this paper
Bano, A., Sinha, S., & Rao, K. S. (2023). Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass. https://doi.org/10.1201/9781003299127-130
Bano, Asifa, et al. “Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass.” 2023, pp. 940–45, https://doi.org/10.1201/9781003299127-130.
Bano, Asifa, Shipra Sinha, and K. Seshagiri Rao. 2023. “Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass.” https://doi.org/10.1201/9781003299127-130.
Bano, A., Sinha, S. and Rao, K.S. (2023) ‘Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass’. Available at: https://doi.org/10.1201/9781003299127-130.
@incollection{bano2023finite,
title = {{Finite element analysis of unlined parallel twin tunnels under impact loads in stratified rockmass}},
author = {Bano, Asifa and Sinha, Shipra and Rao, K. Seshagiri},
pages = {940--945},
year = {2023},
doi = {10.1201/9781003299127-130}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.