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Underground                                       reports

Underground

Our underground health and safety, productivity and environment initiatives include strengthening ventilation and gas management technology, minimising risks from fires and explosions, advancing emergency response technologies, reducing operating costs and improving reliability of subsidence predictions.


Coal Burst (19 Reports)

Advanced Fracture Propagation Testing of Coal Measure Rocks under Dynamic Loading to Replicate Coal Burst Scenario

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C2800912/12/2023
Author: Babak Khadivi, Jing Li, Amin Heidarpour, Hossein Masoumi, Qianbing Zhang, Jian Zhao | Monash University

This project is aimed to address critical challenges regarding enhancing the health and safety standards in underground coal mining operation, with a particular focus on understanding of burst occurrence mechanism. The outcomes of previous ACARP projects have notably contributed to advancing ....  read more

 

Advances in Acoustic Logs to Predict the Stress Redistribution in Coal Strata as a Result of Degassing/Dewatering

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C2702701/05/2021
Author: Hamid Roshan and Hossein Masoumi | University of New South Wales and Monash University

The aim of this project is to study the effect of fluid withdrawal on stress distribution in coal. Recent advances in acoustic log analysis and analytical models as well as field and laboratory data are used to evaluate the stress redistribution caused by fluid drainage from a borehole.

 ....  read more

 

Application of United States Coal Burst Practical Experience/Research for Identification of Elevated Risk Domains in Australian Operations

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C3303201/04/2023
Author: Hamid Maleki | Maleki Technologies

Since 1995, under the support of US mining companies, the Bureau of Land Management, NIOSH and the School Institute for Trust Land Administration, significant effort has been dedicated to advance the understanding of violent failure mechanisms by identifying significant contributing factors. ....  read more

 

Assessment of Damage and Risk from Seismic Events in Coal Mines

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C2706011/01/2022
Author: Winton Gale, Stephen Meyer | SCT Operations

Seismic monitoring is typically undertaken when a mine is experiencing dynamic failure events such as coal or rock bursts, caving anomalies or rock failure associated with structural features which is causing uncertainty and difficulty during mining. The aim of the monitoring is to understand ....  read more

 

Coal Burst Monitoring Technology using Microseismicity – Microseismic Data Capturing and Documentation

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C2600601/03/2020
Author: Xun Luo, Joey Duan, Matt van de Werken | CSIRO

Coal burst is a violent collapse of the coal wall or roof in development, roadways and at the longwall face in underground coal mines. Because it occurs suddenly, with no or very little warning, coal burst is particularly dangerous to nearby mine personnel, mining equipment and infrastructure. ....  read more

 

Coal Micro-Fabric as a Trigger for Coal Bursts

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C2801204/07/2023
Author: Rhys Pitchers, Yvette Heritage, Winton Gale | SCT Operations

Research conducted project C26060 Mechanics of gas related coal bursts indicated that areas of structurally generated micro fractures have the potential to allow significantly greater gas energy to be liberated from the coal than in nonstructured coal. Under the appropriate stress and gas ....  read more

 

Energy, Burst Mechanics Required for Coal Bursts and Energy Release Mechanisms

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C2606618/05/2023
Author: Ismet Canbulat, Chengguo Zhang, John Watson, Chunchen Wei, Onur Vardar, Changbin Wang, Faham Tahmasebinia, Winton Gale | University of New South Wales, SCT Operations

Given the increasing incidence of coal bursts in Australian mines, it is necessary to develop mechanistically sound methods for assessing the risk they pose to personnel and equipment underground and methods of minimisation of their likelihood and the severity of any that occur.

 ....  read more

 

Forecasting coal burst risks near various types of faults, folds and dykes

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C2903901/04/2023
Author: Baotang Shen, Jingyu Shi, Jane Hodgkinson, Xun Luo, Joey Duan | CSIRO

Stress state and geotechnical conditions often change significantly near major geological structures (e.g. faults, shear zones, dykes), which is the cause of most major mine instabilities and/or safety hazards including coal burst, roof falls, water inrush, gas outburst. A previous project ....  read more

 

Ground Support Requirements in Coal Burst Prone Mines

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C2704101/06/2023
Author: Ismet Canbulat, Chengguo Zhang, John Watson, Chunchen Wei, Faham Tahmasebinia | University of New South Wales

As Australian coal mines progress deeper, the likelihood of coal burst increases in some areas; the current ground support system alone maybe inadequate for coal burst control in these limited areas. This project aims to assess the role and effects of a wide range of ground support elements ....  read more

 

Innovative Coal Burst System to Investigate the Influence of Confinement Loss and Pre-conditioning on Coal Burst Mechanism

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C2900701/01/2024
Author: Murat Karakus, Giang Nguyen & Selahattin Akdag | The University of Adelaide

The challenges associated with designing and operating a safe and profitable mine increase as near surface deposits are depleted and the pursuit of mineral resources is pushed deeper underground. Mining induced coal bursts pose great threats to mine safety and production. Coal bursts may ....  read more

 

Investigation of data processing strategy for distributed optic fiber sensing and development of methods for real-time data processing

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C2903801/06/2022
Author: Xun Luo, Joey Duan, Michael Lofgren, Matt van de Werken | CSIRO

CSIRO successfully demonstrated that distributed optic fiber sensing (DOFS) technology can become a reliable and efficient tool for microseismic monitoring in longwall coal mining and have identified that a big challenge for DOFS application in coal mining is data handling. DOFS can record ....  read more

 

Mechanics of Gas Related Coal Bursts in Mining

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C2606003/02/2021
Author: Winton Gale | SCT Operations

Rock and coal fracturing is common about roadways, particularly under the influence of elevated stresses, either tectonic or related to mining abutment stress. Shear fracture is very common, however, it is very uncommon that the coal is propelled from the face or ribs as a result of fracture ....  read more

 

Modelling Of Dynamic Fracture Mechanisms For Improved Strata Control Design and Coal Burst Assessment

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C2605401/01/2019
Author: Jan Nemcik, Gaetano Venticinque, Shivakuma Karekal | The University of Wollongong

The success of mining operations is heavily dependent upon controlling the fractured ground especially in coal mines where complex sedimentary strata exist. In nature, mechanisms of rock fracture are a dynamic phenomenon that up to now has not been fully understood nor computationally modelled ....  read more

 

Monitoring Stability of Roadway and the Longwall Face for Coal Burst Risk Management Using Distributed Fiber Optic Sensing Techniques

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C2704801/08/2020
Author: Xun Luo, Joey Duan, Ludovic Ricard, Matt van de Werken | CSIRO

In this project, the feasibility of using distributed optic fiber sensing (DOFS) technique was investigated for microseismic monitoring in coal mining. The investigation involved in theory study, laboratory tests and a mine site experiment.

Results from the laboratory experiments have ....  read more

 

New Outburst Risk Determination Measures Along With Data Gathering and Analysis for Coal Burst Assessment

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C2606224/05/2021
Author: Ian Gray, Jeff Wood, Tim Gibbons, Xiaoli Zhao | Sigra

Bursts are events that expel material at velocity at the time of ejection. This is usually coal but is sometimes rock. Unlike falls where the velocity is gained through gravitational acceleration, the sources of energy that drive the material outwards are either strain energy of the rock or ....  read more

 

Predict Stress State and Geotechnical Conditions Near Major Geological Structures Using Microseismic Technology and Distinct Element Modelling

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C2605301/09/2019
Author: Baotang Shen, Bongani Dlamini, Lu Chen, Yi Duan, Xun Luo,Matt Van de Werken, Onur Vardar, Ismet Canbulat | CSIRO, The University of New South Wales

Stress state and geotechnical conditions often change significantly near major geological structures which is the cause of most major mine instabilities and/or safety hazards including coal burst, roof falls, water inrush, gas outburst etc. This project aimed to develop an integrated method of ....  read more

 

Review of Australian and International Coal Burst Experience and Control Technologies

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C2500401/07/2023
Author: Ismet Canbulat, Chengguo Zhang, Bruce Hebblewhite, John Watson, Rob Thomas, Baotang Shen, Xun Luo and Winton Gale | University of New South Wales

Coal burst events are rare in the Australian coal industry. However, their occurrence appears to be increasing in some limited  deeper mines. Understanding such phenomena in the Australian industry is primarily qualitative and has previously been based on overseas experience. Although ....  read more

 

The Young’s Moduli, Poisson’s Ratios and Poroelastic Coefficients of Coals

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C2606125/02/2019
Author: Ian Gray | Sigra

This report describes the measurement of coal (and rock) properties using core in laboratory tests where the axial and radial (confining) stresses and the fluid pressures are varied. The results derived from this work show quite different material behaviour to those generally considered to ....  read more

 

True Triaxial Strength of Coal Measure Rocks and its Impact on Roadway Stability and Coal Burst Assessment

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C2703923/09/2022
Author: Winton Gale, Gaetano Venticinque and Mahdi Zoorabadi | SCT Operations

Rocks in the ground are subject to a range of stresses. The stresses are defined on the basis of the three principle stresses (σ1,2,3) and shear stresses (τ).  In coal mines the rock and coal are subject to fracture (failure) on a regular basis during development driveage and ....  read more

 

Underground

Health and safety, productivity and environment initiatives.

Recently Completed Projects

C27045Assessment Of Longwall Mining Induced Connective Fracturing

In underground mines the mining induced permeability change in the o...

C29007Innovative Coal Burst System To Investigate The Influence Of Confinement Loss And Pre-Conditioning On Coal Burst Mechanism

The challenges associated with designing and operating a safe and pr...

C28009Advanced Fracture Propagation Testing Of Coal Measure Rocks Under Dynamic Loading To Replicate Coal Burst Scenario

This project is aimed to address critical challenges regarding enhan...

Underground

Open Cut

Safety, productivity and the right to operate are priorities for open cut mine research.

Recently Completed Projects

C28035Topsoil Deficits In Site Rehabilitation Accelerated Transformation Of Spoils To Functional Soils

The incorporation of commercial biological amendments (compost, worm...

C34036Tyre Handler Testing Rig Stage 2: Lifting Trials

Tyre handling is a major source of risk in surface mining operations...

C29052Autonomous Water Pressure Sensors For Spoil Dumps And Dams

The geotechnical integrity and stability of a mine spoil dump or tai...

Open Cut

Coal Preparation

Maximising throughput and yield while minimising costs and emissions.

Recently Completed Projects

C33048Capability For Dewatered Tailings (DT) And Mixed Plant Rejects (MPR) Testing In Support Of A Critical State Soil Mechanics Framework For Potential Liquefaction Assessment

Testing of fine coal materials in the unsaturated state, such as dew...

C28062Improving Operation And Control Of Centrifugal Dewatering Using A Novel Online Tool

Centrifugal dewatering is one of the main processes used for fine an...

C23045Full Scale Trial Of The REFLUX™ Flotation Cell

A 2 m diameter REFLUX Flotation Cell™ (RFC™) was install...

Coal Preparation

Technical Market Support

Market acceptance and emphasising the advantages of Australian coals.

Recently Completed Projects

C34060In-Situ Investigation Of Coke Structure Formation Under Stamp Charged Coking Conditions

Stamp charged cokemaking has emerged as an effective technique to im...

C34062Improving The Classification Of Microstructure Distribution In Coke CT Images Using Deep Learning And Lineal Path Calculations

This project builds on a number of earlier projects that have helped...

C29071Source Of Variability Of Reactivity Of Coke In The CSR Test

The Coke Strength after Reaction (CSR) test is used worldwide to det...

Technical Market Support

Mine Site Greenhouse Gas Mitigation

Mitigating greenhouse gas emissions from the production of coal.

Recently Completed Projects

C28076Selective Absorption Of Methane By Ionic Liquids (SAMIL)

This third and final stage of this project was the culmination of a ...

C29069Low-Cost Catalyst Materials For Effective VAM Catalytic Oxidation

Application of ventilation air methane (VAM) thermal oxidiser requir...

C23052Novel Stone Dust Looping Process For Ventilation Air Methane Abatement

This multi‐phase project is concerned with the mitigation of m...

Mine Site Greenhouse Gas Mitigation

Low Emission Coal Use

Step-change technologies aimed at reducing greenhouse gas emissions.

Recently Completed Projects

C17060BGasification Of Australian Coals

Four Australian coals were trialled in the Siemens 5 MWth pilot scale ga...

C17060AOxyfuel Technology For Carbon Capture And Storage Critical Clean Coal Technology - Interim Support

The status of oxy-fuel technology for first-generation plant is indicate...

C18007Review Of Underground Coal Gasification

This report consists of a broad review of underground coal gasification,...

Low Emission Coal Use

Mining And The Community

The relationship between mines and the local community.

Recently Completed Projects

C16027Assessing Housing And Labour Market Impacts Of Mining Developments In Bowen Basin Communities

The focus of this ACARP-funded project has been to identify a number...

C22029Understanding And Managing Cumulative Impacts Of Coal Mining And Other Land Uses In Regions With Diversified Economies

The coal industry operates in the context of competing land-uses that sh...

C23016Approval And Planning Assessment Of Black Coal Mines In NSW And Qld: A Review Of Economic Assessment Techniques

This reports on issues surrounding economic assessment and analysis ...

Mining And The Community

NERDDC

National Energy Research,Development & Demonstration Council (NERDDC) reports - pre 1992.

Recently Completed Projects

1609-C1609Self Heating of Spoil Piles from Open Cut Coal Mines

Self Heating of Spoil Piles from Open Cut Coal Mines

1301-C1301Stress Control Methods for Optimised Development...

Stress Control Methods for Optimised Development and Extraction Operations

0033-C1356Commissioned Report: Australian Thermal Coals...

Commissioned Report: Australian Thermal Coals - An Industry Handbook

NERDDC