Implementation of slope drainage system for optimal slope design at Anfisa open pit, Khabarovsk Territory, Russian Federation

摘要

Open pits' slope angles determine company profit and work safety. Steep slope and benches angles increase company's profit as well as increase risks of landslides occurrence. Thus, slopes design should be optimal - profitable and safe. Groundwater negatively influence slope stability. Implementation of slope depressurization program greatly influence slope stabilization and reduce negative risks of pit wall deformation.The object of the study is Anfisa open pit at gold mineral deposit "Albazino", situated in Khabarovsk Territory, Russian Federation. Complicated geology conditions along with low hydraulic permeability of rocks are the reasons of high groundwater level in the South and South-East walls of Anfisa open pit which substantially influences open pits slope stability.The main goal of the investigations is optimization and construction of depressurization system at South and South - East walls of Anfisa open pit to achieve slopes stabilization.