Assessment of the arching effect and the role of rock bolting for underground excavations in rock masses—a new numerical approach

• Published in: Arabian journal of geosciences Vol. 13; no. 13
• Main Authors: He, Shaohui, Wang, Dahai, Liu, Xiabing, Zhang, Jiawen
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.07.2020; Springer Nature B.V
• Subjects: Arches; Bolting; Bridging; Dredging; Earth and Environmental Science; Earth science; Earth Sciences; Excavation; Finite element method; Original Paper; Rock bolting; Rock masses; Rocks; Stability; Stress concentration; Stress ratio; Underground structures; Underground excavations; Ground arch; Rock bolt

In very jointed rock masses, the ground arch developed around the underground opening is an arch-shaped structure to maintain the excavation stability, and the rock bolting has been attributed as one of the dominant approaches to enhance the arching effect. Through 2D finite element method (FEM), nu...