Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Possibilities of utilizing mineral wastes in Hungary
By I. Gombköto, J. Bohm
"In Europe, and therefore in Hungary opening a new mine is harder and harder. Depletion of mines, unfavourable legal and economic changes, and growing public concerns are the main reasons. Social and
Jan 1, 2011
-
Construction Of The MCUA Tunnel And Force Mains Under The Raritan River, New Jersey: A Case History
By Bob Rautenberg
The Construction of Tunnel and Edison Force Mains contract involves the installation of two new force mains to provide a redundant means for sewage conveyance from Middlesex County Utility Authority?s
-
Professional Project Management in Mine Construction
By F. G. Crack, R. V. Ramani, R. L. Frantz
Management for mine construction and development differs from that needed for routine mine production and maintenance. An integrated approach to managing mine development projects must consider contra
Jan 7, 1982
-
Geometallurgy For A Two Recovery Process Operation ? Cripple Creek And Victor Gold Mine, Colorado
Cripple Creek and Victor Gold Mine is an epithermal gold deposit located in the Rocky Mountains of Colorado. Surface operations are continuing along with an expansion for an onsite mill to take place
Feb 27, 2013
-
Collection Of Hydrophobic Particles In The Froth Phase
By N. Ahmed
The collection of hydrophobic particles in the froth phase in flotation has been studied. A continuous flotation cell was developed, in which the froth phase could be isolated from the pulp zone. Hema
Jan 1, 2001
-
Cerrejon North Block project is making Colombia a major coal exporter
By Gregory D. Savage, Bruce M. Everett
Introduction The growing role of Colombia as a major supplier of internationally traded steam coal has been widely discussed in the industry. Although Colombian coal has been produced and exported in
Jan 6, 1986
-
Geopolymer-Based Concrete To Reduce Carbon Foot-Print Of Construction Industry
By H. Akbari
The ordinary Portland cement (OPC) is the key pozzalonic component of the concrete mix, widely used as the construction material world-wide. Billions of tons of OPC are used in the construction indust
Feb 27, 2013
-
Probable Cost Estimating and Risk Management
By John Reilly
Costs of complex/underground projects have been consistently underestimated and delivery on time and on budget has been problematic. This has been attributed, to inadequate cost estimates and unidenti
Jan 1, 2008
-
Selection, Design And Construction Of A Retaining Structure To Support The Primary Crusher Relocation Project At Round Mountain Mine - Preprint 09-022
By O. MacIntosh
The Round Mountain gold mine, located 90 km (55 miles) north of Tonopah, Nevada began large-scale production in 1977. During 2008 Round Mountain Gold Corporation (RMGC) relocated the primary crusher
Jan 1, 2009
-
Allegheny River Tunnel Crossing Project
By Paul A. Roy
The North Shore Connector Project for the Port Authority of Allegheny County constructs twin Tunnel Boring Machine (TBM) tunnels through cohesive soils and rock beneath the Allegheny River and a narro
Jan 1, 2008
-
Mining Foundation of the Southwest Honors its 2005 Inductees
The 23rd annual American Mining Hall of Fame Awards Banquet sponsored by the Mining Foundation of the Southwest will be held at the Tucson Marriott University Park Hotel, Tucson, AZ on Saturday, Dec.
Jan 1, 2005
-
Evaluation Of Underground Coarse - Coal Slurry Transportation Systems By A Simulation Model (d935be45-f8d1-4dc5-9b83-e154b4daad3f)
By H. Sevim
In this paper, the research effort in simulating the operation of underground coarse-coal hydrotransport systems (UCCHS) is summarized. The equipment of the system to be simulated is already optimally
Jan 1, 1985
-
Hydraulic Lifters Aid in Dragline Maintenance
Draglines are one of the largest land-based equipment moving across the earth. They typically ranging in size from2.5 to 6.5 kt (2,750 to 7,100 st). Their size, though, makes them difficult to mainta
Jan 1, 2004
-
Microtunnels vs. EPB Risk-Based Selection
By Michelle L. Ramos
INTRODUCTION The Ballard Siphon was built in 1935 and consists of two 91.4 cm (36-inch) diameter wood-stave pipes. These pipes convey sewer flowsunder the Ship Canal from northwest Seattle and the Ba
-
Investigation And Modeling Of Longwall Face-To-Face Transfers
By E. Topuz, C. Patrick
Longwall face-to-face transfers can cost more than $100 per minute in lost production potential and $100,000 for personnel and supplies. Such high costs make extensive planning and control of the tran
Jan 1, 1994
-
Modelling Liberation Of Comminuted Particles - Preprint 09-088
One of the challenges in the development of mineral processing simulators is the modelling of liberation characteristics of particles produced by comminution circuits. Understanding the mineral charac
Jan 1, 2009
-
Study on the performance of ventiflex ducting and couplings
By L. M. Anisdahl
Ventiflex is a flexible ventilation duct system with a global market within mine and tunnel ventilation. The system is distributed in a wide range of qualities and dimensions. It is very important tha
Jan 1, 2009
-
Economic Analysis Of The Copper Mining Indusdry Of Iran
By K. Oraee
Mining of copper ore and the related industries play an important role in Iran?s economy. Copper ore production in Iran accounts for 75% of the total production in the Middle East. All activities rela
Jan 1, 2011
-
The Application Of Automation In Modern Mining Analytical Laboratories
By Andre Balt, Pierre Hofmeyr
It is only recently that automation has been applied to mining analytical laboratories. This paper describes the use of automation in the laboratory analytical process of hard-rock mining and geologic
Jan 1, 2005
-
The Construction of the Manhattan Water Tunnel, New York City ? Introduction
By Edward (Ted) Dowey
City Water Tunnel No. 3 is being built in order to provide a redundant system for delivering 4,542,500 m3 (1.2 billion gallons) of water per day throughout the five boroughs of New York City. The pres
Jan 1, 2008