In the process of working face mining, permeability coal seam and crack evolution characteristics overlying strata are very important for efficient gas drainage. this study, distribution stress field in their relations analyzed mainly by 3DEC numerical simulation. Furthermore, combined with on-site measurement stress, pressure, seepage front before after coupling effect law migration deeply exp...

Airborne light detection and ranging (LiDAR) unmanned aerial vehicle-structure from motion (UAV-SfM) provide point clouds with unprecedented resolution accuracy that are well suited for the digital characterization of rock outcrops where direct contact measurements cannot be obtained due to terrain or safety constraints. Today, however, how better apply these techniques practice geostructural a...

To study the effects of anisotropy and heterogeneity on shale failure mode tensile strength, Brazilian splitting tests were performed from both directions bedding layer thickness. Layers containing different loading angles thicknesses obtained separately. The results show that, at 0° 90° angles, cracks grow “linearly”; 15°, have “arc type” growth; 30°–75°, shale-splitting displays “broken line”...

Abstract Stability assessment of potential wedge failures in rock slopes is usually carried out based on stereographic projection techniques and limit equilibrium analyses. Nevertheless, this methodology presents several limitations (i.e., lack information joint mechanical properties, oversimplification the structure, etc.) that could lead to poorly accurate conclusions. In line with idea, main...

Occurrence of toppling failure has been prominent due to the increasing infrastructure construction, such as road slopes, dams, and hydroelectric stations. Many scholars have done research on characteristics, but paid less attention comparison numerical simulations physical models in order propose reasonable effective stability control methods. Based previous tests model field investigations, a...

The internal overburden movement after coal mining may cause many disasters to the on-site production. It is of great guiding significance for engineering treatment such as separation layer grouting and gas extraction master evolution law fracture in overburden. Combined with full-columnar a certain working face, this study established number models using 3DEC simulation software analyzed influ...

Nowadays, the dimension stone industry performs a crucial role in world economy. Accordingly, quarries’ importance grows due to their different applications various construction, building, and decorative industries. Some issues threaten this provide financial risk that should be taken into account make smallest possible for investment. The presence of discontinuities rock mass has key function ...

It is well established that unreinforced masonry (URM) buildings develop damage-forming collapse mechanisms during high-intensity earthquakes, with these exhibiting large rocking displacements before collapsing. The Discrete Element Method (DEM) of analysis can realistically capture phenomena involve movements elements, resulting in the technique being ideal for simulating URM building elements...