Sublevel caving (SLC) is widely used in underground mines for its low cost and high production rate, but it faces challenges such as high ore loss and dilution. The previous research has focused on shape of draw bodies, stope structural parameters of SLC and drawing management. However, the flow of waste rocks, ore-rock contact and its control in the drawing process are not deeply studied. This study analyzed the main causes of these issues and the formation mechanism of waste rock funnels, proposing the insert drawing method (IDM) to reduce ore loss and dilution. This technique involves activ...
