What is the DTH method of drilling?
Down-the-Hole (DTH) drilling is a powerful and efficient method used in the mining, construction, and geotechnical industries for drilling boreholes into the Earth's subsurface. This technique involves a pneumatic or hydraulic hammer attached directly to the bottom of the drill string. As the name suggests, the hammer is situated "down the hole," delivering impact energy directly to the drill bit, making it a popular choice for various drilling applications. Components of the DTH System: Drill Rig: The equipment responsible for supporting and operating the entire drilling process. Drill String: A series of connected drill rods that transmit rotation and impact force to the drill bit. DTH Hammer: The central component that delivers impact energy to the drill bit. It comes in various sizes and designs to suit different drilling requirements. Drill Bit: Attached to the end of the drill string, the drill bit is responsible for cutting and breaking the rock or soil. Casing