نتایج جستجو برای: pit mine production scheduling

تعداد نتایج: 697924  

Journal: :Sustainability 2023

Due to the impacts on ecological environment, production safety and economic benefits of large open-pit water deposits, there is no longer a single drainage method within pit that can be used meet need for further deep mining. Therefore, curtain grouting technology proposed use in prevention control mine water. The flow equation slurry vertical fissures under influence self-weight stress was de...

Journal: :Annales De Chimie-science Des Materiaux 2021

Drawing on the theories of limit equilibrium and finite-element strength reduction, this paper explores instability modes stability change laws slope in zones E, W, S Jiajika spodumene mine, through rock mechanics tests, field survey, numerical simulation. The results show that sliding mode is circular arc or + plane sliding. Overall, final open-pit mine generally stable under current design, s...

2009
Felipe Alvarez Jorge Amaya Andreas Griewank Nikolai Strogies

This paper proposes a new mathematical model for the open pit mine planning problem, based on continuous functional analysis. The traditional models for this problem have been constructed by using discrete 0−1 decision variables, giving rise to large-scale combinatorial and Mixed Integer Programming (MIP) problems. Instead, we use a continuous approach which allows for a refined imposition of s...

Sustainability assessment has received numerous attentions in the mining industry. Mining sustainability includes the environmental, economic, and social dimensions, and a sustainable development is achieved when all these dimensions improve in a balanced manner. Therefore, to measure the sustainability score of a mine, we require an approach that evaluates all these three dimensions of mining ...

Journal: :Journal American Society of Mining and Reclamation 1995

Journal: :The Journal of the Acoustical Society of America 1976

Journal: :Journal American Society of Mining and Reclamation 2006

Journal: :Polish Journal of Environmental Studies 2022

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