Earth pressures against the excavation wall in a jointed rock mass

摘要

This paper examined the magnitude and distribution of earth pressure against the excavationrnwall in a jointed rock mass. Based on a physical model test and its numerical simulation, extended parametricrnstudies were conducted considering different rock and joint conditions. The results of earth pressure in a jointedrnrock mass were compared with Peck’s empirical earth pressure for soil ground. The comparison indicated thatrnthe earth pressure in a jointed rock mass can be significantly different from Peck’s earth pressure. Accordingly,rnthe effect of rock and joint conditions should be considered when designing the excavation wall in a jointedrnrock mass.