... percent of the bolts in the powerhouse are reported to have failed and the walls of the cavern are continuing to converge, albeit at a slow rate since its completion in 2008. Plans are underway to stabilize this important underground structure. The cavern is located in the complex geological conditions...

... Abstract Convergence measurements are an essential part of monitoring methods in underground openings. They also provide important information about the mechanical behaviour of the rock mass in the framework of site exploration. In shafts a more accurate estimation of the deformation behaviour...

... and the pillar width through numerical simulation [9]. reservoir geomechanics convergence roadway deformation workface real time system district sublevel stability monitoring coal-rock convergence deformation metals & mining fully-mechanized face roadway test roadway coal pillar...

... location results with three methods are proposed and their calculation abilities are compared. The results show that computational accuracy of the second method is influenced by initial value and the third method has the global convergence; At last, the last two methods together are adopted for source...

... conducted. This paper summarizes field measurement results and their interpretation, and proposes a continuous method for the stability evolution of caverns for underground powerhouses under operation. displacement convergence underground powerhouse continuous management method management...