This thesis aims to develop a comprehensive strategy for automatic control of the ITH percussive drilling process. Such automation would provide the benefits of improved productivity and quality in terms of penetration rate and hole deviation, as well as enhanced hole quality an…
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The purpose of this dissertation is to create a computer simulation model of a bucket wheel dredge for mining sand and tin-ore. This research is part of a long term plan of PT Timah Tbk, an Indonesian tin mining company, to search for alternative dredging technologies for offsho…
Entry roofs in underlying multiple seam mines are vulnerable to failure under the influence of stress transferred from the upper seam workings. Overburden depth, innerburden thickness, percentage of hard rock in the innerburden and relative location of pillars in the two seams a…
The effects of sulfide minerals on gold dissolution in atmospheric and oxygen enriched solution was studied by using rotating disc method. This research was divided into four sections: Direct leaching of gold in cyanide solution in the presence of sulfide minerals in air and oxy…
Coal mining carries significant impacts for surrounding livelihood practices. Yet, in order to explain how specific impacts become grounded within a particular community, attention must be given to the complex assemblage of socio-political and economic forces operating at the lo…
Since time immemorial extractive industries have been shrouded in secrecy worldwide. This stemmed countries with high levels of corruption and weak administrative systems and vulnerable regulatory frameworks to seldom develop or economically grow from extractive industries reven…
Production and injection in long horizontal wells pose many challenges to operating companies right from drilling, production optimization, flow assurance to reservoir management. Horizontal wells are subject to ineffective well clean up, non-uniform stimulation and difficulties…
Although metal mining is increasing in Africa, little is known about its effects on endangered ape populations. In Senegal, much of the metal mining is located in the southeastern region, where the effects of mining compound existing conservation problems faced by savanna chimpa…
Geotechnical design of mine shafts has received little attention in the literature, and shafts are still constructed predominantly on the basis of prior experience. Literature review and preliminary investigation led to the definition of the problem in three main aspects: (i) An…
This study has been performed to better understand the flotation behaviour of pyrrhotite by quantifying the combined effect of crystal structure and chemical composition. Effect of these variables on flotability of pyrrhotite has not been clearly established to date due to the d…
The main concern of this study is to find a feasible and economical technique to recover metals from oxide low-grade ore microbially. Owing to the large quantities of metals that are embodied in low-grade ores and mining residues, these are considered new sources of metals. On t…
In the last fifteen years, Indonesian coal production has increased rapidly. Most of the production came from mines operated by private companies. The success of the Indonesian government in attracting investors, both domestic and foreign, was accomplished by improving legal asp…
Mine waste rock is often recycled for paste and cement backfill in underground cut and fill mining operations. Aggregate in concrete and road surfacing material is another use if the mine waste does not contain deleterious materials that can degrade surface and ground water qual…
When underground mining voids are filled with Cemented Paste Backfill (CPB) a dynamic interaction occurs between the hydrating CPB's engineering properties (hydraulic conductivity, stiffness and strength) and the fill rise rate, drainage conditions, and underground atmospheric c…
Mining Negotiation Santa Maria de la Paz, S.A. of C.V. (NEMISA) has operated the Cobriza and Dolores copper mines in Villa de la Paz, San Luis Potosi, Mexico for more than 150 years. The copper mineral values occur primarily as chalcopyrite and bornite along with a minor seconda…
Aluminosilicates are naturally occurring minerals with low thermal conductivity due to the presence of variable size pores in their structure. Because they are found in abundance in nature, they could be an economical alternative for the fabrication of thermal insulators used in…
The stability of rock slopes is crucial to public safety in highways passing through rock cuts. Slope instability and failures occur due to many factors such as adverse slop geometries, geological discontinuities, weak or weathered slope materials as well as severe weather condi…
El relacionamiento con las comunidades aledañas, es determinante para el desarrollo de las actividades extractivas. La presente investigación estudia el relacionamiento comunitario de la Compañía Minera ARES, Mina Inmaculada, con el distrito de Oyolo (región Ayacucho) a partir d…
En la perspectiva de aportar en las políticas de desarrollo socio económico y ambiental en el marco de las relaciones interinstitucionales, empresa minera, gobierno local y la comunidad, basada en evidencias, se ha desarrollado el presente trabajo de investigación tomando como b…