Abstract Rock landslides are generally controlled by a series of discontinuous interfaces formed damage to complex structural rock masses that is related folds, faults, and shear zones, which provide potential failure boundaries. Based on detailed case study, the authors illustrate not only affects 3D boundaries but also significantly controls initiation mode. In this paper, six large triggered...

Excavation of tunnel in rock mass refers to complex continuum-discontinuous processes. For capturing the damages side walls and supports bolts/cables, different types elements shall be used same framework. In this work, a novel method is proposed which couples block, particle, bar for simulating intact mass, broken supporting system respectively during excavation. Brittle Mohr-Coulomb fracture ...

The occurrence of surface discontinuous deformations in post-mining areas is currently a significant and important problem, due to both the frequency their threat they pose public safety. This paper presents results research concerning possibility sinkhole formation abandoned mining excavations. For purpose assessing condition rock mass disturbed by existence numerous excavations, electrical re...

Once segmentation of 3D surface data of a rock pile has been performed, the next task is to determine the visibility of the surface rocks. A region boundary-following algorithm that accommodates irregularly spaced 3D coordinate data is presented for determining this visibility. We examine 3D surface segmentations of laboratory rock piles and determine which regions in the segmentation correspon...

Abstract The greatest challenges of rigorously modeling coupled hydro-mechanical processes in fractured rocks at different scales are associated with computational geometry. In addition, selections continuous or discontinuous models, physical laws, and coupling priorities based on geometric features determine the applicability a numerical model for certain type problem. this study, we present o...

A unique lunar property The moon has a unique property compared to the terrestrial and gas giant planets of our solar system. This property consists of the ability to record and preserve evidence of both external and internal events and processes over a time span that includes most of solar system history. Every exposed surface of the moon accumulates implanted solar wind atoms, is modified by ...