Bhawani Singh

TL;DR: In this article, a modified non-linear form of Mohr-Coulomb strength criterion has been suggested in order to overcome two major limitations of this criterion; first, it considers the strength response to be linear, and, secondly the effect of the intermediate principal stress on the strength behaviour is ignored.

TL;DR: In this paper, the authors used field data collected systematically from 20 tunnel sections to investigate the correlation between rock mass quality and support pressure and showed that the support pressure decreases rapidly with tunnel closure and then increases beyond a limiting closure, and that the observed wall support pressures were always close to zero except in squeezing ground conditions.

TL;DR: In this paper, the authors present a case history allowable bearing pressure for building foundations and allowable bearing-pressure method of excavation for tunneling support systems in caverns, as well as herar strength enhancement of rock mass in tunnels.

TL;DR: In this article, a new approach to risk assessment mapping using a risk assessment matrix (RAM) is presented, which can be expressed in terms of risk, which is a function of hazard probability and damage potential.

TL;DR: In this article, the Schmidt hammer rebound was used to determine whether a correlation exists between Schmidt hammer and the in situ large-scale strength of coal and the lower mean of rebound values obtained.