Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
Use Of Flotation In Removing Ink From Recovered Paper
By J. K. Borchardt
The use of statistical design to optimize deinking process design has been studied for the flotation deinking of newspapers. The interactions of two variables are often important in determining flo
Jan 1, 2001
-
Industrial Minerals 2004 - Zeolites
By T. H. Eyde
Estimated natural zeolite production worldwide during 2004 remained at about 3.6 Mt (4 million st), about the same as in 2003. China continues to be the largest producer of natural zeolites followed
Jan 1, 2005
-
Occupational Health and Safety - An Element of Efficient Business Management
By G. Baldermann, Hüttenrauch
Occupational health and safety are an important tool to increase a company’s economic efficiency. The integration of safety-related tasks into the overall structure of entrepreneurial tasks is an inal
Jan 1, 2005
-
Seismic Response of Precast Tunnel Linings
By J. Chai, H. H. Sedarat, Gary J. E. Kramer, A. Kozak
Precast concrete segmental lining systems have been gaining widespread use in seismically active areas and a single-pass version of such a system has been developed for use on the Silicon Valley Rapid
Jan 1, 2007
-
Deep Unconsolidated Strata Water Injection Test And The Monitoring By Borehole Embedded FBG
By J. Chai
In order to find the behavior of dewatered unconsolidated strata during the process of injecting water through a borehole, a new type of fiber Bragg grating (FBG) sensing system was successfully used
Jan 1, 2012
-
Increasing Kaltim Prima Coal Overland Conveyor Speed To 8.5 M/Sec (28 Ft/Sec)
By Poltak Sinaga
PT Kaltim Prima Coal?s 13-km (8-mile) overland conveyor (OLC) was commissioned in 1991. It is a conventional three-roller, 35 degree trough belt type. Cost and performance optimization during initial
Jan 1, 2009
-
Recreating a Headwater Stream System on a Head-of-Hollow Fill
By C. T. Agouridis
Head-of-hollow fills or valley fills have gained national attention due to increasing environmental concerns, particularly with regards to headwater stream loss. Researchers at the University of Kent
Jan 1, 2008
-
A Review Of Tunneling Difficulties In Carbonate Sedimentary Rocks
By D. P. Richards
Tunneling in carbonate sedimentary rocks such as lime stones and dolomites can be difficult when solution channels or voids are anticipated. Addressing the risk aspects associated with these formation
-
Mine Preplanning
By Christopher J. Bise
INTRODUCTION Before a mine is planned in detail, a preliminary analysis is often conducted. This preplanning permits the mining engineer to make a rapid assessment as to whether or not a particula
Jan 1, 1986
-
Factors Affecting The Development Of A Surface Coal Mine Safety And Training Program In The United States ? Introduction
By Douglas W. Huber
During the past decade, a general awareness of the need for and subsequent development of increased safety in United States coal mines has taken place. Government and industry alike were stimulated in
Jan 1, 1982
-
Technology News – Caterpillar to Produce Electric Drive Mining Trucks
Caterpillar said it will produce a Cat line of ac electric drive mining trucks. The world’s largest manufacturer of mining and construction equipment said the addition of an AC electric drive truck l
Jan 1, 2006
-
Northside Storage Tunnel Project, Sydney: Tunnelling and Groundwater Control Beneath the Middle Harbour
By R. A. Gee, G. B. Ashton, S. T. Warren, P. N. Groves
Northside Storage Tunnel provides 500 megalitres (Ml) (130 million gallons) of storage capacity to capture stormwater/sewage overflows into Sydney Harbour. The6.6 m diameter TBM driven tunnel traverse
Jan 1, 2001
-
Amax Uses Practical Approach to Dewatering at Its Sleeper Mine
By W. David Tyler
Any mining or engineering-construction excavation that extends below the water table must be dewatered. In many situations, the ground is of low permeability or the workings extend only a short distan
Jan 1, 1991
-
NATM Design For Stanford Linac Coherent Light Source Tunnels
By Jonathan Taylor, Irwan Halim, Frederick (Rick) Vincent
The new underground facilities for the LINAC Coherent Light Source project at the Stanford Linear Accelerator Center in Menlo Park, CA, are constructed in very weak sedimentary rock interspersed with
Jan 1, 2007
-
Cemented Rock Fill System Design And Application In Leeville Underground Mine
By C. Sun
The Leeville underground mine has been in operation since 2006 and currently produces 3,500 tons of ore per day with an average gold grade of 0.34 opt. The mine has a large horizontal extent of 2,500
Jan 1, 2011
-
Using Principles Of Inherent Safety In Design Of Hydrometallurgical Solvent Extraction Plants
By L. J. Moore
Introduction Hydrometallurgical solvent extraction (SX) processes – featuring large quantities of combustible or flammable organic solvents - are common in the mining industry for recovering non-fe
Jan 1, 2006
-
Practical Geostatistics At Newmont Gold: A Story Of Adaptation
Newmont Gold's methods for deposit modeling vary, depending on geology, mining and processing methods, economic feasibility and availability of historical information. It is argued that successfu
Jan 1, 1998
-
Hobson And Rosedale Tunnels?New Technology In Auckland
By Harry Asche
The last 12 months has seen the construction of the first Earth Pressure Balance (EPB) TBM excavated tunnel in New Zealand on the Project Hobson sewer storage tunnel for Watercare Services Limited, wi
-
Evaluation Of Temperature Effect On P-Wave Velocity, UCS And Elasticity Modulud Of Rocks, Using Newly Developed Apparatus
Instabilities occurred as a result of climate changes caused to investigate the rock behavior dependency to temperature changes, in this paper. In the natural earth condition, the phase transition of
Feb 27, 2013
-
Industrial Minerals 2004 - Titanium
The market for titanium feedstocks (ilmenite, rutile,synthetic rutile and slag) is driven primarily by offtake from the titanium dioxide (TiO2) pigment industry. The pigment sector depends on the per
Jan 1, 2005