Early stage assessment of using block caving for a deposit . The following steps should be completed when evaluating a mineral deposit for block caving: Apply typical costs and economic cut-off values to the resource block model and assess the resulting geometry and block values in terms of block caving – size, shape and available footprint ...

Full scale marker experiments were designed and implemented at the Ridgeway Deeps block cave mine from March 2008 to October 2010. The experiments aimed at quantifying and …

Block caving mining method is one of the most viable and preferred mass underground mining methods for low grade orebody. However, in combined surface and underground mining, the breakthrough of an underground caving under an open pit may result in subsidence at the bottom of the pit. This can pose a serious threat for the stability of the pit …

These flow experiments included a Panel Caving draw, a Block Caving draw with non-flow zone of 30 cm (spacing between drawpoints), and a Block Caving draw with a non-flow zone of 15 cm, reported in Ref. 7. In the Panel Caving draw, the granular material was extracted continuously from different drawpoints (Fig. 14 A).

Conceptual block caving model (Duplancic and Brady, 1999) Elfen Modelling . Cave mining refers to all mining operations where the orebody has caved naturally after undercutting and the caved material is recovered through drawpoints. Caving is the lowest cost underground mining method for large near-vertical orebodies provided that the drawpoint ...

Block caving is a low-cost, high efficiency, and large-scale mining method; block caving mining is the preferred method for mining deep mineral resources because of its small amount of rock ...

The draw bin method was first implemented in a feasibility study at Telfer mine, Australia, and then used at Ridgeway Deeps, Australia (Allman, 2002, in Jamieson, 2012). ... R., Trueman, R., and Halim, A. 2007. A study of isolated draw zones in block caving mines by means of a large 3D physical model. International Journal of Rock Mechanics ...

The block caving mining process limits access to the orebody, in turn limiting opportunities to gauge the state of the rock mass once the rock mass degradation and caving process has initiated.

View the Caving 2022 conference papers freely from the ACG Online Repository of Conference Proceedings. The next Caving conference will be held July/August, 2026 in Mongolia. The Block and Sublevel Caving Conferences provide a …

Rill swell (RS) events are outflows of dry, fine-grained material mainly observed at drawpoints in cave mining. These events can negatively affect production and have fatal consequences. Unfortunately, comprehensive studies analyzing these events are lacking. This paper uses the discrete element method to study RS events. With this method, a numerical …

In some mines, there are multiple block caving events, such as at the Ridgeway mine in Australia, when the initial block cave was depleted they went deep (1100 metres below surface) for their second block cave.

O método Block Caving envolve o desabamento controlado de grandes blocos de rocha por seu próprio peso através de fissuras e fraturas. Isso requer rochas com facilidade de fragmentação em profundidades entre 600-1200m. O método possui altas taxas de produtividade e baixos custos, mas também riscos de subsidência e diluição do minério.

performance of new large caving projects. Over the last 20 years Newcrest has developed unique capabilities within the caving industry to efficiently mine deep and low-grade deposits, transitioning from Sublevel Caving in Ridgeway and Telfer during the early 2000's and more recently to Block Caving at Ridgeway Deeps, Cadia East PC-1 and PC-2.

In addition to learning from Ridgeway, Newcrest also sought technical expertise in block and panel caving from other world players, including Codelco and Rio Tinto's Northparkes. As the Credit Suisse report noted, "Ridgeway was very much the early prototype cave for Newcrest and has clearly shown what should not be repeated and what can be ...

More and more mining companies are exploring block caving as it becomes increasingly difficult to find high quality orebodies close to the earth's surface. Why are companies moving from open pit operations to cave mining? …

Rock fragment size is a key variable in several mining stages such as underground mine design, equipment selection, and mineral processing. In Block Caving, rock fragment sizes are affected by fragmentation during gravity flow in the ore column while ore is being extracted from drawpoints. Additionally, smaller fragments can percolate between large fragments …

Block caving is a new alternative method of developing new mines or extending the operation of open pits. Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight.

Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity flow of blasted ore and caved waste rock [1].The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under the action of mine-induced stresses and gravity [2].The caved waste from the overlying rock mass fills the …

The block caving mining method has become increasingly popular in the last two decades. Meanwhile, Indonesia has several potential ore bodies which have not yet determined suitable mining methods.

The Newcrest board approved development of the Ridgeway Deeps block cave in June 2007. The Ridgeway Deeps block cave project involved development of resources below the Ridgeway Underground mine at a depth of 300m to about 1,100m. It is the first natural caving operation and the deepest block cave in Australia.

Dokumen tersebut membahas metode penambangan block caving yang telah diterapkan selama lebih dari 100 tahun. Metode ini sesuai untuk tambang dengan karakteristik seperti kekuatan bijih dan batuan rendah, kedalaman moderat, …

Block cave fragmentation has been documented in the literature to have a significant impact on mine design, performance and downstream material handling and comminution processes. …

Utilising a ground support design methodology is an important part of designing ground support. This paper describes the application of the ground support and reinforcement design …

Energies 2023, 16, 9 3 of 36 The second caving method, Sublevel Caving, is an underground mining method proposed for moderate and strong strength of ore, weak rock strength, tabular/massive

Caving 2010, Perth, Australia 219 Block cave optimisation — a value driven approach C.A. Stewart AMC Consultants Pty Ltd, Australia A. Allman AMC Consultants Pty Ltd, Australia B.E. Hall AMC Consultants Pty Ltd, Australia Abstract Optimising the footprint, production rate and block height of a block caving operation is a trade-off between

Block caving technique is a mass mining method in which gravity is used in combination with internal rock stresses to fracture and break the rock mass into pieces that can be handled by miners ...

No existen experiencias de aplicación de la malla cuadrada en Panel Caving, los únicos antecedentes que se conocen, son estudios de Ingeniería Conceptual. Mientras que en el método Block Caving, esta malla ha sido la base de diseño de este método. Algunos aspectos o factores que son muy incidentes en las mallas de extracción, los cuales son:

This section is focused on block caving method. Block caving is a technique in which gravity is used in conjunction with internal rock stresses to fracture and break the rock mass into pieces that can be handled by miners. Block refers to the mining layout in which the ore-body is divided into large sections of several thousand square meters.

Hudyma, M & Potvin, Y 2008, 'Characterizing caving induced seismicity at Ridgeway gold mine', Proceedings of MassMin 2008, Luleå University of Technology, Luleå, pp. 931–942.

Block caving is an underground mining method that enables profitable extraction of massive, low-grade orebodies, provided orebody geometry, size and competence (quality) favors caving.