Types of Underground Rock Drilling Rig

1. Types of Underground Rock Drilling Rigs: A Complete Guide The underground mining and tunneling industries rely on specialized equipment to ensure efficiency and safety. Among the most critical machines are underground rock drilling rigs, designed for operations beneath the earth's surface. These rigs are used for blasting, anchoring, support drilling, and ore extraction, offering power and precision in confined spaces. Choosing the right drilling rig is essential for productivity and safety. This article explores the main types of underground rock drilling rigs, their uses, and what to consider when selecting the best model for your needs. 1. Jumbo Drilling Rigs Multi-Purpose Performance for Tunneling Projects Jumbo drilling rigs are versatile machines primarily used for drilling blast holes in tunnels and underground roadways. They come in single, double, or triple-boom configurations depending on the size of the tunnel and production demand. Key Features:

2. Ideal for hard rock drilling Often equipped with hydraulic systems High drilling precision Common in metro and mining tunnel excavation ZSIM’s DW1002B jumbo drill is an excellent example of a dual-boom rock drilling rig designed for efficient tunneling and rock bolting. 2. Bolting Rigs Reinforcement and Safety in Excavated Spaces Bolting rigs are essential for ground support and stabilization. These machines are used to install rock bolts and mesh into the tunnel walls and ceilings, ensuring the structural integrity of the site. Applications: Slope stabilization Mine drift support Tunneling reinforcements ZSIM offers a variety of bolting jumbos equipped with powerful hydraulics and precision arms for anchoring in variable rock formations. 3. Long-Hole Drilling Rigs Optimized for Production Drilling These rigs are designed for drilling large-diameter holes over long distances. They are commonly used in underground mining for stope drilling and production blasting. Characteristics: High drilling depth Vertical or inclined drilling Suitable for ore body access Long-hole rigs are perfect for bulk mining applications where high productivity is needed. 4. Raise Boring Rigs Vertical Shaft and Tunnel Development

3. Raise boring rigs are used to excavate vertical shafts between two underground levels without the need for blasting. These rigs are often used in ventilation shaft construction and ore pass development. Benefits: Safe and non-explosive operation Smooth tunnel walls Reduced vibration 5. Directional Drilling Rigs Precision in Horizontal and Inclined Drilling These rigs are used when specific drilling trajectories are required, such as in coal mining, exploration, or geotechnical studies. Common Uses: Probe drilling Drainage hole installation Geological mapping They offer a high level of control and are useful for determining rock mass characteristics before excavation. Key Considerations When Choosing a Rock Drilling Rig Tunnel Size & Layout: Match boom reach and machine dimensions to your tunnel specifications. Drilling Method: Consider whether you need top hammer, DTH, or rotary drilling systems. Mobility Requirements: Evaluate tire or track systems for your jobsite terrain. Hydraulic Efficiency: Opt for rigs with advanced hydraulic control systems for better precision and reduced energy consumption. Explore More Rock Drilling Technologies To learn more about modern trends in tunneling equipment, check out: Tunnel Business Magazine – Equipment Tech Mining.com – Drilling Innovations International Tunneling and Underground Space Association

4. Conclusion Selecting the right underground rock drilling rig is essential for maximizing safety and performance in tunneling and mining operations. Whether you're dealing with rock bolting, tunnel excavation, or shaft drilling, each type serves a unique purpose. At the forefront of this innovation is ZSIM, a trusted name in the design and manufacture of advanced underground equipment. With a wide range of jumbo drill rigs, bolting machines, and intelligent hydraulic systems, ZSIM continues to support mining and infrastructure development across the globe.