Notch formation in vertical excavations in a deep hard rock mine and rock stabilization methodologies
March 2024
This paper presents details of the early to mid-stage deterioration in the form of notch growth of two 3 m diameter bored raises that were excavated and slashed to 7.8 m to serve as an internal shaft...
Share article
A novel DFN-DEM approach to simulate long-term behavior of crystalline rock under effects of glacial climate conditions
March 2024
The safety assessment of nuclear waste repositories is a critical yet challenging task. Several processes acting on different time scales and multiphysical couplings must be taken into account. The...
Share article
Development of the rolling extrusion rock bolt with constant resistance and large deformation
March 2024
With the increasing excavation depth of underground engineering, engineering problems such as large deformation and rock burst caused by high geo-stress brings new challenges to the excavation and reinforcement...
Share article
An improved method to calculate the rock brittleness index PEECR based on linear energy storage law
March 2024
The peak elastic strain energy consumption ratio (PEECR) is a rock brittleness index proposed by Gong and Wang. In the present study, based on the linear energy storage law of rock under triaxial compression,...
Share article
Numerical analysis of thermo-hydromechanical process related to deep geological radioactive repository
March 2024
This paper addresses numerical analysis of thermo-hydromechanical processes in the context of deep geological disposal of radioactive waste. The emphasis is put on modeling of damaged zones induced...
Share article
Field observations and interpretation of extensional fracture in hard rock surrounding deep underground openings
March 2024
Extensional fracturing often occurs in hard rock masses during excavation at depths, for example, >1000 m below the ground surface. Surface-parallel fractures are created in the surrounding rock mass,...
Share article
