Establishing Traverse for Main Control Points in Mining
Accurate and stable control points are the backbone of underground mining operations. Here’s a comprehensive guide to setting up a reliable traverse network: 🔍 Steps to Follow 1️⃣ Determine the Number of Points: Typically, 4 to 8 main points are required, depending on the size and complexity of the site. 2️⃣ Preliminary Planning: Select points in stable and secure locations to ensure long-term usability. Maintain an optimal angle between points (60°-120°) for network stability. Plan for visibility and accessibility to all points. 3️⃣ Assigning Coordinates Using GPS: Use precise GPS systems (e.g., RTK) to assign coordinates to reference points. Ensure optimal satellite signal for accuracy, especially in open areas. 4️⃣ Network Closure with Total Station: Use a total station to measure and close the traverse network. Leverage applications like Sets of Angles to refine angles and distances. Ensure closure accuracy with an error ratio of at least 1:10,000 or better. 5️⃣ Quality Check: Verify the network’s accuracy by checking angles, distances, and closures. Remeasure if discrepancies are detected. 6️⃣ Securing Points: Use permanent markers like concrete columns or metal markers in stable locations. This enhances durability and protects the points for long-term use. 7️⃣ Documentation: Create a detailed report with coordinates, measurements, and error corrections. Share the data with relevant teams for future underground operations. 💡 Key Recommendations: Distances between points should range from 100m to 500m, depending on terrain. Always measure angles and distances in both directions for accuracy. Construct concrete pillars for reference points in critical areas. After GPS setup, always verify and close the network using a total station. Regularly monitor the network to ensure its accuracy. Mining operations or ground displacement may affect the stability of the network, requiring adjustments or updates. By following these steps and recommendations, you’ll create a robust and reliable network that serves as the foundation for underground mining operations. 🛠️