Allison Golsby | UNSW - Academia.edu (original) (raw)

Papers by Allison Golsby

ABSTRACT Both primary and secondary ventilation is important in underground mining. Secondary ven... more ABSTRACT
Both primary and secondary ventilation is important in underground mining. Secondary
ventilation refers to the provision of ventilation to development ends, stopes and services facilities,
which constitute secondary circuits tapped off the primary circuit or main through flow of air.
An unbalanced primary and secondary combination can cause re-circulation, which is inefficient
and potentially hazardous. These inefficiencies extend into operational and other considerations,
such as power.
Most cost justification analysis covers capital and physical consumables. These analyses are
often not comprehensive or holistic. This case study is an example of ‘how to holistically justify’ a
secondary ventilation circuit and optimise it to meet all stakeholder needs.
This paper particularly addresses the following:
•• how to account for all stakeholders in a secondary ventilation cost justification
•• the secondary ventilation components
•• the cost justification outcomes and how to measure them
•• some of the sensitivities
•• the stakeholders
•• how to present the justification to meet the stakeholder needs
•• secondary ventilation cost justification.

ABSTRACT Gunite was invented in 1907 by Carl Akeley to repair a crumbling facade of the Field Col... more ABSTRACT
Gunite was invented in 1907 by Carl Akeley to repair a crumbling facade of the Field Columbian
Museum in Chicago. The method used was to blow dry material out of a hose with compressed air
and inject water at the nozzle as it was released. In 1911, he was granted a patent for his invention,
the ‘cement gun’; the equipment used; and ‘gunite’, the material that was produced.
The advantages of using the dry mix process is that the water content can be adjusted
instantaneously, allowing more effective placement in overhead and vertical applications without
using accelerators. The dry mix process is useful in repair applications when it is necessary to stop
frequently as the dry material is easily discharged from the hose.
This paper describes the applications and principles of the gunite pump system in underground
coal mining and discusses why it is the preferred spraying system for both cement and plaster
products.
It also addresses improving productivity and examines dust, respirable crystalline silica (RCS)
and health issues around gunite pump systems. The solutions include development of the latest
componentry for current gunite pumps to improve their efficiency and allow their operation to be
dustless.
In particular, this paper addresses:
•• why and where RCS is a problem in underground coal mining
•• how RCS hazards and its propagation can be managed
•• how the gunite pump system has become dustless
•• how the gunite system has become more productive
•• gunite occupational health and safety issues and how they have been solved
•• a case study of gunite dry spraying.

ABSTRACT: Polymer plaster forms part of a group of spray on products that use polymers to supplem... more ABSTRACT: Polymer plaster forms part of a group of spray on products that use polymers to supplement or replace cement as a binder in grout systems. The types include but are not limited to polymer plasters, polymer-impregnated concrete, polymer concrete, and polymer-Portland-cement concrete. Polymer plaster and concrete has historically not been widely adopted due to the high costs and difficulty associated with traditional manufacturing techniques. However, recent progress has led to significant reductions in cost, meaning that the use of polymer plaster and concrete is gradually becoming more widespread. This paper will focus on addressing aspects of the use of polymers

Abstract Polymer plaster forms part of a group of spray on products that use polymers to suppleme... more Abstract
Polymer plaster forms part of a group of spray on products that use polymers to supplement or replace cement as a binder in grout systems. The types include but are not limited to polymer plasters, polymer-impregnated concrete, polymer concrete, and polymer-Portland-cement concrete.

Polymer plaster and concrete has historically not been widely adopted due to the high costs and difficulty associated with traditional manufacturing techniques. However, recent progress has led to significant reductions in cost, meaning that the use of polymer plaster and concrete is gradually becoming more widespread.

This paper will focus on addressing these particular questions:
.
• What are polymers?
• Are polymers a dangerous OHS additive?
• Why polymers should be considered in plaster & concretes underground
• Examples of polymer modified products and their applications

Abstract Quality assurance programs were introduced into industry in 1973. Over time these syste... more Abstract
Quality assurance programs were introduced into industry in 1973. Over time these systems have evolved to what is available to management today. How can quality assurance programs be used to ensure management excellence and are they relevant to the Coal Mining Industry?

How can quality assurance programs be used to ensure management excellence and are they relevant to the Coal Mining Industry?

Although much talked about, social licence to operate (SLTO) is a relatively new concept that has... more Although much talked about, social licence to operate (SLTO) is a relatively new concept that has been deemed as one of the four biggest business risks to a mining project over the life of mine. There is no accepted single definition of SLTO and this author understands SLTO to be stakeholder perception of the legitimacy of a project, a company or an industry. At a specific site, and across different sites within the same organisation, SLTO ranges through different levels according to stakeholders degrees of acceptance in time and space. Management of SLTO is vital for the mining sector but is difficult as it is informal and intangible. Although there are no key performance indicators (KPI’s), there are certain indicators that enable relative measurement of the “level” of the SLTO. Because of the importance of the SLTO, information management during the entire life of mine from exploration to rehabilitation becomes crucial for the continued operation of a project. This paper identifies ten basic principles for the management of information to support the SLTO.

Although much talked about, social licence to operate (SLTO) is a relatively new concept that has... more Although much talked about, social licence to operate (SLTO) is a relatively new concept that has been deemed as one of the four biggest business risks to a mining project over the life-of-mine. There is no accepted single definition of SLTO and this author understands
SLTO to be stakeholder perception of the legitimacy of a project, a company or an industry. At a specific site, and across different sites within the same organisation, SLTO ranges through different levels according to stakeholders’ degrees of acceptance in time and space. Management of SLTO is vital for the mining sector but is difficult as it is informal and intangible. Although there are no key performance indicators, there are certain indicators that enable relative measurement of the ‘level’ of the SLTO. Because of the importance
of the SLTO, information management during the entire life-of-mine, from exploration to rehabilitation, becomes crucial for the continued operation of a project. This paper identifies ten basic principles for the management of information to support the SLTO.

Clarence Colliery is exploring the 4FCT as a continuous haulage system. The 4FCT (Flexible Conve... more Clarence Colliery is exploring the 4FCT as a continuous haulage system. The 4FCT
(Flexible Conveyor Train) is used as a continuous conveyor between the current continuous miner unit
and the fixed boot end of the panel conveyor vs the three shuttle car system, currently in use in a
continuous miner partial pillar extraction panel at Clarence Colliery. At Clarence the base case is three
shuttle cars per continuous miner, using a cut and flit partial pillar mining method.
The Joy 4FCT has not been utilised in Australia before. The main questions are: What is a 4FCT? How
does it function? What are the benefits? How do we introduce the 4FCT safely? Why Clarence
Colliery? What else needs to change at Clarence to optimise the 4FCT
? Moving forward?
Clarence Colliery needs to meet specific subsidence, water make, geological and mine design
requirements. The 4FCT implementation offers Clarence colliery the opportunity to explore new
technology, while testing Clarence’s analysis, measurement, assessment and continuous improvement
processes.
The choice of the ‘better option’ in any analysis is not always made for monetary reasons. Often option
choice decisions are made for safety, operational ease or engineering or mine design optimisation.
Money is not the prime driver, but part of the decision making process.

Continuous haulage systems have not always presented a satisfactory operational experience for h... more Continuous haulage systems have not always presented a satisfactory operational
experience for hard rock or coal miners. Not all mines have used continuous haulage. Some mines
presently use one of the continuous haulage systems. Some have tried and abandoned continuous
haulage. Yet, continuous haulage offers considerable benefits, which are not always realized.
However, there is now a resurgence of interest in these systems as coal mines seek to improve gate
road development rates. As most market players are very reluctant to publish information,
benchmarking continuous haulage systems can be difficult. This is to the detriment of the industry as a
whole. The continuous haulage examples discussed are; bridge, flexible belt, chain, temporary belt
support, pipe conveyors and pneumatic systems.

How can quality assurance programs be used to ensure management excellence and are they relevant to the Coal Mining Industry?

Although much talked about, social licence to operate (SLTO) is a relatively new concept that has... more Although much talked about, social licence to operate (SLTO) is a relatively new concept that has been deemed as one of the four biggest business risks to a mining project over the life-of-mine. There is no accepted single definition of SLTO and this author understands
SLTO to be stakeholder perception of the legitimacy of a project, a company or an industry. At a specific site, and across different sites within the same organisation, SLTO ranges through different levels according to stakeholders’ degrees of acceptance in time and space. Management of SLTO is vital for the mining sector but is difficult as it is informal and intangible. Although there are no key performance indicators, there are certain indicators that enable relative measurement of the ‘level’ of the SLTO. Because of the importance
of the SLTO, information management during the entire life-of-mine, from exploration to rehabilitation, becomes crucial for the continued operation of a project. This paper identifies ten basic principles for the management of information to support the SLTO.