The F317 fault, as a major tectonic zone in the Jianshan mine area, influences geotectonic features and geomechanical properties of area. Mining operations need to be conducted within these systems, so it is important fully study understand characteristics evolution systems develop reasonable mining plans safety measures. Aiming at problem that existence fault affects stability west road during...

Shallow buried and unsymmetrically loaded tunnel is the most common type of mountain portal. Currently, studies mainly focus on stability side slope, while investigation deformation front slope after excavation relatively less. In this paper, influence gradient angle between portal was analyzed by FLAC3D. The results show that: When greater than 40°, caused larger with increase angle. order to ...

The gangue filling mining method is used to reduce the occurrence of dynamic disasters on roof a steeply dipping coal seam (SDCS) effectively and improve stability overburden structure. To comprehensively study movement law under different quantities, 3221 working face Lvshuidong mine was taken as research site. vertical displacement, stress, plastic zone quantities were analyzed by using FLAC3...

Hydraulic fracturing is a prospective technology for methane hydrate deposit exploitation. The evolution of hydraulically stimulated fractures around the point liquid injection simulated. For this purpose, FLAC3D computer model used because its explicit calculation cycle that imitates real physics, prevents numerical instability, and reproduces realistic path during simulation nonlinear rock ma...

With the increasing complexity of engineering geological conditions, problem tensile-shear failure bolts is becoming more serious. Accurate modelling performance bolted rough joints subjected to load essential for support design. In this paper, based on theoretical criteria bolt failure, mechanical model Pile element in FLAC3D program modified, and accuracy modified verified by numerical experi...

Abstract Numerical modelling has become an important tool in the underground rock bolt reinforcement designing process. provides advantage of easily and quickly simulating complex geometries mechanisms with sensitivity analyses. However, a numerical model needs to be calibrated using mathematical solutions, lab testing or actual in-situ observations measurements (which is preferred method) befo...