ISRM India Journal- Half Yearly Technical Journal of Indian National Group of ISRM

  • Year: 2020
  • Volume: 9
  • Issue: 1

Study of Analytical Methods Used to Predict Squeezing Pressure Around the Tunnels-State of the Art

  • Author:
  • Pragvansh Dewanand Awachar, Rahul Kolate, Ajinkya Ramdasi, Yashwant Apparao Kolekar
  • Total Page Count: 5
  • DOI:
  • Page Number: 40 to 44

Department of Civil Engineering, College of Engineering, Pune, India

Abstract

This paper shows astudy of Analytical methods used to determine squeezing pressure occurring in tunnels in weak rock and under high overburden height. 4 Approaches discussed in this paper are compared with the Chhibro-Khodri Tunnel sites measured squeezing pressure (which is a stress based comparison) and the fifth approach is compared with Orizume Tunnel in Tohoku region of Japan (Which is a strain based comparison). The comparison helped find out a conservative method which could be used to predict squeezing pressure.