The video shows a bolting Jumbo. Jumbo bolting consists of using an equipment (in this case known as a Jumbo) to drill a tunnel but also to support (also referred to as bolting) a tunnel. One of the benefits of Jumbo bolting is that the same equipment can be used for both drilling and supporting the heading. However, there are advantages and disadvantages associated with bolting with Jumbo depending mostly on skill set, reliability of the equipment and type of ground. Please share your thoughts on bolting with a Jumbo.
Source of video: TheRedpath group