The mechanical characteristics and orientation of joints determine the behaviour of rock masses, including the strength, the stiffness, and all forms of conduction and diffusion. Furthermore, the preferential orientation of joints renders the medium anisotropic. In turn, these properties affect the velocity and damping of propagating elastic waves. The purpose of this study is to investigate th...

Nacrtak Forest roads provide access for people to study, enjoy or contemplate natural ecosystems. Therefore, roads are one of the most important tools needed in forestry. Forest roads are built by excavation of soil and rock. Rockfall occurs during construction works, caused by excavated rock pieces on embankment slopes and by blasting of block rock masses. This study analyzes rockfall damage t...

The right bank high slope of the Dagangshan Hydroelectric Power Station is located in complicated geological conditions with deep fractures and unloading cracks. How to obtain the mechanical parameters and then evaluate the safety of the slope are the key problems. This paper presented a displacement back analysis for the slope using an artificial neural network model (ANN) and particle swarm o...

High resolution measurements of fracture aperture of granite and sandstone rocks were performed using CAT scanner. The aperture distribution was statistically characterized for future experimental and numerical studies on single and multiphase flow and transport. The fracture aperture can be measured in-situ and nondestructively with CAT-scanning. The minimum pixel size is 0.27 x 0.27 mm, but f...

introduction one of the factors affecting in the control of environmental hazards, is the stability of the structure landforms. human activities especially in the case transportation, and also the need to expand it in different areas, can significantly affect on the region geomorphologic structures and causing high damages on life and financial. as a result, human activity can operate as a fact...

The stability and kinematics of rock slopes are widely considered to be functions lithological, structural, environmental features. Conversely, slope damage features often overlooked as byproducts deformation. This paper analyzes discusses the potential role damage, its time-dependent nature, control on both their kinematics. analysis several major landslides unstable slopes, combined with a li...

We report erosion rates determined from in situ produced cosmogenic Be across a spectrum of Australian climatic zones, from the soil-mantled SE Australian escarpment through semi-arid bedrock ranges of southern and central Australia, to soil-mantled ridges at a monsoonal tropical site near the Arnhem escarpment. Climate has a major effect on the balance between erosion and transport and also on...