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This paper describes some research attempts to isolate factors associated with lost time accidents and attitudes to safety. Some results of these investigations are presented and their implications discussed. Proposed future research is outlined. Error analysis and the importance of organisational variables are briefly mentioned.

Jan 1, 1975

By A Struminski

The principles of occupational risk evaluation resulting from the improper ventilation of the underground mines were presented. It was shown that the risk level implies the appropriate planning and usage of prevention methods. That approach is fundamental in the ventilation, fire and climate safety management in the copper ore mines. The paper uses the adequately modified Risk Score method.

Jan 1, 2003

In April, 1990 the Sydney Water Board invited bids for the construction of the Hazelbrook Carrier Section 3 being part of the Blue Mountains Sewerage Transfer Scheme. In December 1990 the contract was awarded to Costain Resources Limited, Mining Services Division for the sum of $A15.3 M. The works consisted of excavation of 9 520 linear metres of tunnel, 3.35 metres diameter with installation of permanent ground support in the form of rockbolts, mesh, steel sets, shotcrete and in situ concrete

Jan 1, 1993

By Middlebrook PD

The problems of education and research in the extractive metallurgy area are being tackled by the University of Melbourne through activities centring on the Department of Chemical Engineering. The establishment of the G.K. Williams Laboratory and the enhance- ment of the teaching of material relevant to extractive metallurgy in the Chemical Engineering course aim-at providing graduates and experienced researchers for the industry and at providing a strong research group carrying out industrially significant research in the area of pyrometallurgy.

Jan 1, 1986

An Ore Reserve Estimate aims to foreqast the impact of the complex mixture of factors which constitute a mining and milling operation. The factors are pulled together in the Mine Plan which then constrains the reserve estimate. At the Zinc Mine at Broken Hill the complexity of the ore lodes highlights some of the factors which affect the ore grade estimates and at Elura the different metallurgical characteristics of the ore types influences their economic viability.

Jan 1, 1990

Geologists working in mountainous terrain were the first to map and interpret in three dimensions and as a result, made the first contributions to our understanding of mountain building and structural geology. However, geology during the 1900s has been dominantly a two-dimensional exercise in data gathering and interpretation. The standard output of geological surveys and university research has been the geological map and the standard methodology of the mineral explorer has been surface mapping and prospecting. The future will be concerned far more with the third dimension.

Jan 1, 1993

Mine production planning and scheduling as a production planning problem can be handled using Linear (Goal) Programming. This approach is particularly useful when the product quality is important. This has been shown for many mine planning cas

Jan 1, 1998

Major underground gold mine developments are not common in Australia especially when they are totally owned and hence financed by a relatively small public company. Ballarat Goldfields Limited with its Ballarat East Project is such a company. Financing a $20m underground exploratory access programme in a poor economic climate places added importance on the quality of the project. Critical factors such as ore reserves, environment, planning and the development program are of immense importance in devising and implementing a workable finance package that satisfies both the shareholder and the project's needs.

Jan 1, 1990

Congratulations on your considerable enterprise in securing the opportunity to have this international conference here in Brisbane - and congratulations on your success in attracting such a distinguished audience from so many nations, with such a broad selection of papers. It is a notable achievement that in the year in which Australia is celebrating two hundred years since settlers first came fran Britain, The Australasian Institute of Mining and Metallurgy is responsible for some ten major conferences, of which at least four are specifically international, or have a very strong international involvement.

Jan 1, 1988

By D A. Aitzhanova, E Zh Omirzakova

The Republic of Kazakhstan has well developed mining and metallurgical complex. In modern conditions, when deposits of useful minerals are running thin, it is very important to find additional sources for obtaining necessary products. As our investigations showed different kinds of waste may be used for producing of different kinds of products, which are successfully applied in different branches of KazakhstanÆs economy. Analysis of ways for increasing of complex use of mineral raw materials of different deposits, widening raw mineral materials base and decreasing negative effects on the environment, are presented in this paper.

Jan 1, 2003

The grades of alluvial ore deposits are low compared with grades of hard rock mining. This factor, combined with other parameters of irregular distribution of particles, bedrock irregularities, size of particles, nugget effect, ore characteristics, and wet horizons, combine to place alluvial deposits among the most difficult to evaluate, and on which to establish an ore reserve with a high degree of confidence. With increased geological input, correct selection and implementation of sampling method, due regard to sample representativity and process design, these confidence levels can be achieved.

Jan 1, 1987

Samples weighing 0·5 g are fused with potassium hydrogen sulphate, leached with 4 ml. of 4 M nitric acid and diluted to 10 ml. with water. An aliquot of the clear solution is treated with EDTA, adjusted with ammonia to give a pH value between 5 and 6 treated with cyanide, ammonia, and sodium diethyldithiocarbamate then bismuth diethyldithiocarbamate is extracted with chloroform and the yellow colour is compared visually with a standard series. Alternatively, the bismuth complex may be filtered on a "Millipore" filter and subjected to x-ray fluorescence spectrometry.

Jan 1, 1971

By A Lu, C Wang

The natural semiconducting mineral rutile and sphalerite exhibited highly photocatalytic activities on degradation of methyl orange under visible light irradiation. The isomorphous substitutions of host metal ions by foreign ions and other defect states in natural semiconductors altered the band structure, decreased the intrinsic band gap, and then made them very attractive for solar energy utilisation. Our study indicated that natural semiconductor minerals might be suggested as a new class of cost-effective and solar light-responsive photocatalyst.

Jan 1, 2008

The introduction of gravimetric sampling of respirable dust in the mining industry ne- cessitated the standardisation of techniques. The paper reviews the legislation con- trolling respirable dust monitoring for risk assessment purposes, it discusses the actions taken to introduce gravimetric sampling in collieries and it summarises the proposed guidelines. In conclusion, some of the results of dust surveys conducted in accordance with the proposed strategy are discussed.

Jan 1, 1988

By Blom W. M

Shareholders, creditors, government agencies and auditors all have a different perspective of financial reports which is determined by the uses to which they put the information disclosed in the report.Shareholders today are better informed than previously and are more aware of the market in which they are investing. This is the result of the increasing role of institutional investors and the increasing reliance being placed on analysts to interpret financial information.

Jan 1, 1990

By J Shooter

Pezzimenti Laserbore designed, fabricated and commissioned the first microtunnelling machine in Australia in 1986. The System was initially a very basic one, developed in isolation to the overseas explosion in microtunnelling growth headed by Japan and Germany. Market needs in Australia have demanded increasing flexibility in microtunnelling capacity-longer distances, variable ground conditions and larger diameters. The one constant throughout the development process is in maintaining high accuracy û the attribute which most readily differentiates microtunnelling from other limited steering techniques.This paper will highlight the features of microtunnelling by drawing on case studies of completed projects.

Jan 1, 1999

The need to describe shape properties of solid particles arises in many applications in the mining and minerals industry. This paper presents a technique for describing the shape of 2D particle profiles from digital images, based on traversals of the circumference of the profile boundary at a succession of different scales. The traversals are undertaken in such a way as to establish a more stable set of results than usually arises from conventional fractal multi-scale shape characterisation techniques. The resulting values can be used to provide compact information on various generic shape features of the particle profile.

Jan 1, 1998

By Giannini L. M

The determination of the "optimum pit limit" of a mine has long been considered as a fundamental problem of mine planning. A number of mathematical techniques have been proposed to solve this problem some of the more elaborate ones posing considerable computational difficulties for their implementation. Barnes and Johnson recently introduced "bounding techniques" to ease the computational effort required for determining the optimum pit. The aim of this paper is to point out and correct some errors in their techniques. A presentation of a general bounding algorithm is given.

Jan 1, 1985

Aspects of sampling are becoming more complex, involving a correct statistical approach to collection as well as geological and possibly pedological control. Advanced chemical techniques and techniques of rapid analysis need to be understood. Results may require statistical analysis. The elementary aspects of sampling still need constant attention by those controlling a programme of sampling. No one person will have sufficient knowledge of statistics, geology, pedology and chemistry to be fully conversant with all the aspects of sampling but, by developing a correct approach, problems can be identified and solved.

Jan 1, 1976

The expense of mine environmental and planning process approvals is a fundamental and proper part of mine planning and feasibility costs. It is not a cost that should be the subject of challenge nor is it a cost that should be avoided. However the additional process approval costs incurred by bureaucratic delay, process duplication and administrative incompetence is a scandal and a deterrent to investment.

Jan 1, 1992