What is open stoping?

Stoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling, blasting, and removal of ore without caving. In mines where the rock requires no artificial support, the operation is known as open stoping.

What is stoping method?

Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided.

What is sublevel open stoping?

Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock. The ore body should be fairly regular in shape and well-defined.

What is long hole open stoping?

Longhole stoping is a very popular method in underground mining for blasting a sequence of stopes in metalliferous mines. The holes are drilled according to a predetermined pattern designed by a mining engineer. This method is one of the most productive ones and covers a variety of ore thicknesses and dips (0 – 90⁰).

What is breast stoping?

Definition of breast stoping

: mining in which the ore is broken from a nearly vertical face.

What is bord and pillar mining method?

A system of mining in which the distinguishing feature is the winning of less than 50% coal on the first working. It is more an extension of the development work than mining. The second working is similar in principle to top slicing.