In response to the severe floor heave problem of the+1100m track crosscut in Liuyuanzi Coal Mine, it was found that exists a hard top and soft bottom surrounding rock environment. FLAC3D simulation used study stress, plastic zone, displacement when is supported by bolt-mesh+Shotcrete+36U-type steel combined support circular shed support. The results show latter reduces 57%.

In coal mining, as the mining depth increases, a complex mechanical environment of “high ground stress”, temperature”, karst water pressure”, and “mining disturbance”, namely “three highs one disturbance” appears. Many roadways have characteristics soft rock with large deformation, pressure, difficult support, high support cost, which brings severe challenges to safe efficient production mines....

Underground stope stability has important implications for the safety and efficiency of metal mining, especially when there are subsidence zones above. To analyze around area Hongling ore body, this paper innovatively adopts 3Dmine–Rhino3D–FLAC3D coupled modeling numerical method to model predict excavation process area; it monitors analyzes displacement stress-distribution changes in a selecte...

This paper presents a combination of geometric reconstructions of the Century Zn–Pb–Ag deposit, and finite-difference modelling of coupled deformation and fluid flow. Our intention is to demonstrate that these computer-based applications represent a new approach in testing ore genesis models. We use a ‘‘visiometric’’ approach, utilising GoCad 3D structural and property modelling. Computer visua...

To achieve a successful and effective operation, the transition from open pit to underground mining requires accurate planning analysis. Numerical modeling utilizing programs like FLAC3D has been an important tool for simulating analyzing complicated geomechanical behavior connected with this shift in recent years. The use of develop model switch coal soft rocks using room pillar method is expl...