Does GALENA use other methods of analysis, eg. Fellenius, Corps of Engineers, Morgenstern-Price?
The design philosophy behind GALENA is to provide engineers with tools to solve problems quickly and efficiently, and the methods of stability analysis provided in GALENA enables engineers to do this. We believe it may be both confusing and misleading to have many different methods of analysis all providing slightly different answers to the same problem. In this case, the engineer then has to decide which result is realistic, which can prove to be an unnecessary complication. For circular analyses most of the methods of stability analysis give similar answers, and the Bishop Simplified Method is widely recognised as producing realistic results. For non-circular analyses, the Spencer method satisfies both moment and force equilibrium conditions and generally gives a reliable answer. The Morgenstern-Price method is similar to Spencer’s method, except that it allows for a variable interslice force angle on every slice and is theoretically more ‘mathematically’ correct. However, the variat