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. ... Kosenko, A.V. Improvement of sub-level caving mining methods during high-grade iron ore mining. Natsional'nyi Hirnychyi Universytet. …

Why block, sub-level and panel caving make for smarter mining. This commitment to industry-leading mining practices and outcomes is exemplified across our sub-level caving (SLC), block caving (BC), and panel caving (PC) work. With high-quality, near-surface orebody sources depleting, the industry is turning to underground mining methods.

Block Caving Block-caving method is employed generally for steeply dipping ores, and thick sub- horizontal seams of ore. The method has application, for example in sulfide deposits and underground kimberlite (diamond) mining. It is most applicable to :- o A large-scale or bulk mining method that is highly productive, low in cost, and used ...

Abstract and Figures. With in-depth geomechanical analyses of sub-level mining using the longwall mining method we can identify the relationships between the physical and mechanical parameters of ...

Since the 1970s, the sublevel stoping mining method (Fig. 1) has been an open stope mining method with relatively advanced technology, high mechanization …

For the mining method proof of concept, LKAB has designated a test area and development is scheduled to start in 2022. The aim is to test raise caving as a standalone method, but also whether it's possible to …

Source: Mining Magazine, September 2013. Sub-level caving is a highly efficient, top-down, underground bulk mining method. Recent developments in sub-level cave mining have advanced the understanding of the technique and its production performance, which allow it to now be considered as a highly viable alternative to open …

Mining Method. The Stage 1 PFS assessed mining methods at the property including the underground Sub-Level Open Stoping (SLOS) method with mining rate ranging between 2-3 million tonnes per annum (Mtpa). SLOS is a large-scale open stoping method that is conducted over multiple levels simultaneously. Under this method, a stope is backfilled …

Print. 8.3.3: Sublevel (Open) Stoping. If we had a stronger and more competent host rock, we could dispense with the need to keep ore in the stope to support the hanging wall as we do VCR mining. Indeed, such …

methods have been studied and compared respectively as part of Vertical Crater Retreat and Sub Level Stoping mining methods. Actually the latter method is not strictly Sub Level Stoping, because in order to minimize the risk of collapse of the hanging wall, which dips at 65°, the major part of the depleted

The caving method is a large-scale mining method with low cost and high efficiency, widely used in China's metal mines. The ore output of the caving method takes up about 35% of the total ore output, and there is a tendency to increase. The caving method has a certain range of applications to the occurrence condition of the ore body …

Open stope mining is the most common mining method employed in underground, hard rock mines in Canada. It is characterised by relatively small, single lift stopes (20,000 to 100,000 tonnes), and ...

This paper proposes a diamond layout sublevel open stoping system using fan blastholes with backfilling to mine such orebodies. To evaluate the performance of …

The room-and-pillar mining method is predominantly used since it allows the adjustment for sudden changes in direction of the vein. However, the management is endeavouring to introduce the long-hole mining method since the manpower for conventional mining is extremely rare. First, the lower and upper sub-levels are developed at 17-m (56 ft ...

Abstract. Sublevel stoping mining methods are very popular in Canadian metal mines since they enable maximum ore recovery due to pillar-less mining. Sublevel stoping mining methods are generally employed to extract steeply dipping tabular ore deposits characterized by relatively long strikes and having various thicknesses.

In the drift-and-fill method (see Fig. 1), the volume of backfills with 20%, 10%, and 0% cement content account for 16.7%, 41.65%, and 41.65% of the total backfill volume, respectively.It is estimated that the total mine fill cost is about 8.93 $/m 3, and from this total amount, 16.5% is the fill cost with 20% cement content.. The 10% and 20% cement …

Sublevel stoping is one of the most successful mining methods in respect of higher production, mechanization and safety. The method is a cost-effective and safe mining solution for steeply dipping vein deposits where high-level mechanization can be adopted. Progress of stope development and rate of production drilling are vital aspects …

Among underground mining methods, sublevel stoping are a commonly used method in large-scale mining. It is a versatile and productive method that is primarily used for steeply deeping orebodies with regular shape, defined ore boundaries and competent ore and host rock. ... Dynamic programming applied to grade control in sub-level open …

Sublevel caving method with sill pillar is the mining process in which a level is divided into several sublevels, a bottom structure specifically used for ore …

Touted as the deep mining method of the future, block caving is an underground mass-mining method that allows for the bulk extraction of large, relatively lower-grade ore deposits that are vertical in orientation. ... There are a number of solutions developed for caving to design, model, evaluate block caving, and sub-level caving …

The mining method to be employed is sub-level caving. The mine's two kimberlite orebodies, K01 and K02, will produce 5.9-million tonnes a year once the VUP fully ramps up, which is the capacity ...

Weak rock mass and poor flow of material can cause excessive ore loss and dilution in sublevel caving. This paper proposes a method to establish design parameters for an inclined deposit within a weak rock mass and evaluates its effectiveness through a case study. In order to solve the problem of low production capacity and poor safety …

Primary Mining Method Sub-Level Longhole retreat. Information. ALL ZONES. Length: No limit. The longest stope: 46 m (150 ft). Height: 20 m (65 ft) sill to sill. For a final height of open stope of 91 m (300 ft). Width: average thickness of 6 m (20 ft). The smallest stopes are 3 m to 4.6 m thick (10 ft to 15 ft). Dip is nearly vertical.

Sublevel caving (SLC) is a mass mining method in which the ore is drilled and blasted while the waste rock caves and fills the space created by the extraction of ore (Cokayne 1982). ... Non-dilution draw method and its application in sub-level caving mines in China. In: H. Schunnesson, E. Nordlund, editor. Proceedings of the 5th International ...

An updated resource based on primarily infill drilling with some steps out holes drilled in late 2020 and early 2021 will be available mid-2021. The underground PEA resulted in an underground sublevel caving inventory of 134 Mt at 0.54% Ni and 0.18% Cu with a resultant NSR of US$46/t (@ $6.50/lb Ni, $3.00/lb Cu).

Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. It is the underground version of open pit mining. In block caving, a large section of rock is undercut, creating an artificial cavern that fills with its own rubble as it collapses.

The mining method used at Kanowna Belle is a sublevel open stoping operation designed to extract large massive and tabular orebodies (Villaescusa, 2014). In this paper, the analysis of level 9215 ...

The Mt Wright Underground Mine is located near the town of Ravenswood in North Queensland and is operated by Carpentaria Gold - a wholly owned subsidiary of Resolute Mining Limited. Following the evolution of the mine plan through a number of stages, the sublevel shrinkage (SLS) with continuous fill' mining method was implemented in 2010 …