نتایج جستجو برای: underground stope

تعداد نتایج: 14841  

Journal: :ITOR 2007
Doreen A. Thomas Marcus Brazil David H. Lee Nicholas C. Wormald

The dominant working structure of an underground mine is a set of interconnected tunnels which provides access to ore zones and haulage of ore from the designated ore zones to the mill. This set of interconnected tunnels forms a network. We describe a mathematical network model and the modelling features of our two software tools for designing underground mine layouts that minimise associated c...

Journal: :JNW 2013
Xian Huang Jia Chen

Node scheduling is one of the key issues in research of internet of things, while the 3D scheduling algorithm of nodes oriented the underground space near surface is the application foundation of the wireless sensor network (WSN). It brought up the research of methods for more efficient coverage of wireless sensor network node, built the node scheduling algorithm oriented underground space with...

2001
Linlin Ge Chris Rizos Makoto Omura Shigeki Kobayashi

Ground subsidence monitoring is of paramount importance in relation to the safety and efficiency of underground mining operations. Moreover, in established coal fields in eastern Australia, it has become harder and harder to select underground minesites which can avoid major engineering structures both on the surface and underground (highways, bridges, buildings, abandoned workings of old under...

2001
N. Thompson P. Spencer P. Green

The Giant Mine, located in Yellowknife, Northwest Territories, Canada has been operating as a gold mine since 1948. Giant has been primarily an underground operation which used roaster technology to remove of gold from refractory arsenopyrite ore. The roasting process produced arsenic trioxide bearing dust as a waste product. This dust was pneumatically conveyed into underground storage chamber...

Journal: :Advances in Materials Science and Engineering 2021

Journal: :Minerals 2022

Paste composite filling mining (PCFM) is one of the effective ways to achieve water-preserved (preservation waterproof strata). To investigate laws fracture propagation overlying strata in PCFM stope, a kinematic model was established, which identified major determinants development fractures. Taking 112,201 working face test mine as research background, physical similar simulation, numerical c...

Journal: :پژوهش های جغرافیای طبیعی 0
اباذر اسمعلی عوری دانشیار گروه مرتع و آبخیزداری دانشگاه محقق اردبیلی محمد گلشن دانشجوی دکتری آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی ساری کیوان خرمی کارشناس‏ ارشد آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی ساری

extended abstract introduction water resources management in arid and semi-arid areas is very important to provide of water for stakeholders. in recent decades, construction of underground dams have been considered, because of its advantages. these dams have many advantages, e.g., unlike a surface dam, land is not submerged to store water and there is no danger of breaching due to natural or ma...

2007
X. Q. Ai J. Li

In this paper, a new approach for the dynamic reliability assessment of finite element modelled underground pipeline structures under earthquake excitations with uncertain parameters is proposed. The approach is established based on the thoughts of the newly developed probability density evolution method, which is capable of capturing the instantaneous probability density function (PDF) and its...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید