A Split Set Bolt Pull Collar is a specialized tool used in underground mining, tunneling, and other geotechnical applications. It is primarily used in conjunction with split set bolts (also known as friction bolts) for ground support and reinforcement. The pull collar allows for the installation or tensioning of these bolts to ensure they effectively hold rock and soil in place. It provides the necessary force to install or adjust split set bolts and is essential for stabilizing rock or soil during excavation or tunneling work.
- Design:The collar is designed to fit around the split set bolt, providing leverage and enabling the adjustment of bolt tension. Built to withstand harsh underground conditions, including vibrations, heavy loads, and extreme temperatures. The collar typically includes gripping mechanisms or jaws that secure the bolt tightly during installation and removal. Designed for ease of use in confined spaces, allowing workers to transport and handle the tool efficiently.
- Applications:
- Underground Mining: In mining operations, split set bolts are used for ground stabilization to prevent rockfalls or collapses. The pull collar is used to apply tension to the bolts, securing them in place within tunnels or shafts.
- Tunneling Projects: Used in tunnels to stabilize the surrounding rock or soil, especially in soft or unstable ground. The pull collar helps install and tension split set bolts effectively to prevent cave-ins or other hazards.
- Geotechnical Engineering: Employed in soil and rock stabilization in construction projects like foundations, dam construction, or slope stabilization, where tensioning bolts are needed to secure soil or rock layers.
- Civil Engineering: Often used in projects involving trenching, excavation, and foundation work to provide reinforcement to walls and other underground structures.
- Slope Stabilization: Used in the construction and maintenance of roads or railways in mountainous or unstable terrain.
- Materials: Steel (High-Tensile or Carbon Steel):The primary material for both the split set bolts and the pull collar. Steel offers high strength, durability, and resistance to fatigue and impact, which is essential for ground support applications.
- Configurations: 39mm, 1.6″ ID, 2.00″ OD, 2.75″ Lip