backfill mining presentation

(PDF) Paste backfill materials for underground mining ...

Cemented paste backfill (CPB) is widely used in backfilling underground mine voids. It consists of fine grained mine tailings with a small dosage of binder (~ 3–10%). Cement is the common binder ...

Presentations tagged with Backfill

2021-8-27 · KEYWORDS: backfill geology Kemess kinetic test prediction sampling waste rock. Atherton C. and A. Shaw. Metal Leaching and Acid Rock Drainage Prediction, Prevention and Mitigation at the Brucejack Gold Mine. Presented at the 2018 workshop. KEYWORDS: backfill Brucejack Sulphurets flooded underground kinetic tests natural lake operating paste ...

Ferri Hassani | Mining Engineering

2021-9-24 · Professor Webster Chair Professor in Mining Engineering Dr. Ferri Hassani has been at McGill University since 1983 and has spent many years in a leadership role. He is the current holder of the Webster Chair Professor in Mining Engineering. His research focuses on rock mechanics, mine and energy as well as mine backfill…

Analysis of Peristaltic Pumping Technology Pt.2 | Modern ...

Analysis of Peristaltic Pumping Technology in the Mining Industry: Part 2 of 2. 1.) Bredel 2100 hose pump handles paste backfill at 69 percent solids and 4 percent cement at Turmalina Mine, Brazil. 2.) Unlike other pumps, the performance of Bredel hose pumps is not affected by abrasive slurries and chemicals.

Strength and Elastic Properties of Paste Backfill at the ...

2016-9-19 · twelve hypothetical paste backfill beams with varying. thicknesses and compressive strengths. 1.1. Mining with Backfill Figure 2 shows a typical stope that is being prepared for backfilling. The first step is to spread a layer of broken waste rock or muck on the floor about a 0.15 m (0.5 ft) thick. Steel reinforcement bars or rock bolts are placed

Excavation, Backfill & Compaction within the Swamp …

2008-8-3 · Excavation, Backfill & Compaction within the Swamp Area 9 of16 My Documents/ à ¦ µ¦ nµ Ç/J.1953/ µ ° ª¸«´ ·Í/Method Statements/Swamp 4.5.2 Excavation, Backfill and Compaction Procedure Considering the present condition of the site there is the public canal located approximately 5 meters eastside from the Phenol boundary.

(PDF) Mine Backfill System Design -Current Best Practice ...

The SUMMARY OF BACKFILL SYSTEMS authors would like to thank the many backfill personnel APPROACH on mine sites around the world whose input to this paper Adopting a approach to mine backfill system design is gratefully acknowledged. results in a backfill system that is matched to the mining requirements and materials availability.

2021

2021-8-16 · The Research Center of Paste Backfill and Mining was founded in December, 2012 under the permission of University of Science and Technology Beijing (USTB). The center takes full advantages of research and talents from Civil and Resource Engineering School and Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mines.

Executing a growth strategy focused on sustainable high ...

2021-7-16 · Mining method Sub level open stoping with backfill Mining costs4 A$/t 65 –85 Incremental processing costs5 A$/t 3 –6 Ore Reserves6 Moz 1.05 Reserve grade6 g/t 2.5 ... See the Appendix of this presentation for details on the Ore Reserve A$380 million capital investment to achieve 350kozpa goal

PASTE BACKFILL MATERIALS FOR UNDERGROUND …

2020-1-9 · Abstract: This review paper presents the backfill method and materials for paste backfill mathod which are used in the world practice of underground mining. The paper consists of two parts. The first part (Part I) provides a brief literature review concerning the presentation of the backfill method, mostly the paste backfill

Project Details

Vertical bulk mining methods using blast hole stoping with cemented backfill. Mining rate of 1 million tonnes per year for more than 10 years. Surface access via ramps from a portal to the underground mine. Mining operations connected by continuing ramps to the lower production levels. Applying the latest automation and mining techniques.

(PDF) Generalized Solution for Mining Backfill Design

Underground backfill plays an important role in the mining industry, and is one of the key elements in the routine operation of many underground mines. Its main …

Underground Backfill Practices In Canadian Mines | North ...

The Department of Mining Engineering at Queen''s University conducted a survey of backfill practices and a survey of the economics of backfilling in underground mines across Canada. The survey of backfill practices was aimed at assessing the current state of backfill usage and the knowledge base in backfill design, from preparation through ...

REVIEW OF FILL MINING TECHNOLOGY IN CANADA by …

Backfill serves many functions, although it is generally considered in terms of its support capabilities. These functions, mainly related to the mining method used, are evaluated in regard to regional support, pillar support, fill roof, working floor, dilution control and waste disposal.

Paste Backfill: Influence on Mine Water Quality

2021-5-19 · mine water quality, need to better understand the underground scale and time effects.! Use of paste backfill appears to be beneficial to the mine operation, but…! The influence of paste backfill on short and long term mine water quality needs to be better understood.

SMARA Reclamation Standards Review Focused Discussion

2019-9-9 · Modify Pit Backfill Requirements Partially backfill pits if critically required to provide environmental protection Maintain access to mineable resource for future generations Maintain Group A and B mining wastes within the original containment systems Permit Group C mining wastes to be reclaimed in-place if partial or

2021

2021-9-18 · 2nd International Seminar on Paste Backfill in China. On 6-9 November, 2015, the second Seminar (ISPBC 2015) was held in Changsha, Hunan Province. More than 400 representatives from universities, mining companies, research institutes and equipment manufacturers engaged in the research and application of paste backfill attended the meeting.

PowerPoint Presentation

Backfill. Process Streams. Industrial Minerals. Acid Mine Drainage. Underground Mine Water. Pile Runoff. Oil Sands. WesTech''s experienced technical staff performs on‑site bench-scale testing or in-house laboratory testing to determine appropriate settling rates, unit areas, and other key design parameters.

Garpenberg mine – 10 years of mining with paste backfill

Abstract: In 2007, Garpenberg mine started Boliden Mines'' first paste backfill operation. From 200,000 t in 2007, the annual paste backfill produced reached 1,000,000 t in 2016. Over the years, several changes have been made in the paste fill plant and the reticulation system to meet the increasing demand on paste backfill.

backfill Archives

2021-8-30 · Output would rise to 236,000 oz/y starting in 2025, 72% higher than the mid-point of previously issued guidance for the mine in 2020, while mine-site all-in sustaining costs would fall to $534/oz, a 30% drop on the 2020 guidance. Combined, this made for an after-tax net present value (NPV) of $1.02 billion at a 5% discount rate, and an after ...

PASTE BACKFILL MATERIALS FOR UNDERGROUND …

2021-1-18 · Abstract: This review paper presents the backfill method and materials for paste backfill method which are used in the world practice of underground mining. The paper consists of two parts. The first part (Part I) provides a brief literature review concerning the presentation of the backfill method, mostly the paste backfill

Design of rib pillars in deep longwall mines based on ...

2020-12-19 · Superhigh-water backfill mining can mitigate rockburst risks in rockburst-prone deep coal mines and reduce pollution caused by traditional cemented paste backfill. In this mining method, the width of the rib pillar between two longwall panels is important to maintain roadway stability, prevent rockbursts and water seepage.

Narrow Vein Mining Fit for the Future | E & MJ

2020-4-8 · Backfill plays a major role in narrow vein mining by providing support and stabilizing the ground. It can increase recovery and help avoid leaving voids unfilled. Using paste fill also reduces the quantity of tailings that need to be stored in surface impounds, which is better for the environment, less risky and reduces waste management costs.

Garpenberg mine 10 years of mining with paste backfill

Garpenberg mine – 10 years of mining with paste backfill C Eriksson and A Nyström 328 Paste 2018, Perth, Australia The UCS testing of the paste samples shows that there is a strong correlation between binder content, curing time, density of the specimens and UCS strength (Figures 7 and 8). Slump tests are taken every third hour

MASTER Presentation 20190328 NDDOT

2019-3-28 · Backfill Materials Used CSP Material and Coating Characteristics Installation Methods Size, Shape, Hardness, and Volume of Bedload Anticipated changes in the upstream watershed (i.e. development, mining, or logging) 3/26/2019 20 ...

ANALYST MINE TOUR APRIL 16, 2010 Chelopech Mining …

2020-12-23 · • The Mining License covers an area of 266 hectares and includes the area of the Chelopech mining operation and its immediate surroundings. The Company owns the land upon which the facilities are constructed. • The mine has operated since the early 1950''s. • The operation was acquired by Dundee Precious Metals in 2003. Chelopech Gold ...

2,159 Backfill PPTs View free & download | PowerShow

The backfill is placed between the wall and the backslope. It keeps the structure stable and secure. Retaining walls play an important role in providing lateral support to the vertical slope of soil. They stop the soil from collapsing into a natural shape. The retained soil is called backfill.

2021

2021-9-23 · 2021. 49 days. To Paste China·2021. Paste China·2021. Download. Organizers. Key Dates. 10 …

Paste backfill materials for underground mining – some ...

2019-12-31 · This review paper presents the backfill method and materials for paste backfill mathod which are used in the world practice of underground mining. The paper consists of two parts. The first part (Part I) provides a brief literature review concerning the presentation of the backfill method, mostly the paste backfill method, its application, advantages and …

HPI Share – Bulkhead Failure and Managing Paste Fill ...

HPI Share – Bulkhead Failure and Managing Paste Fill Inrush Risk. Joel Gray. Senior Mining Engineer – Operations, Cannington Mine, South32. Several paste backfill bulkhead failures over the space of 12 months demanded that paste …