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⛏ Mining Survey
0/6 steps
STEP 1
Underground Control
STEP 1 — ESTABLISH UNDERGROUND CONTROL Set up control points in the mine. Why we do this: Underground surveys need their own control network. Surface control isn't visible underground. What you need: • At least 2 control points per section • Points in stable rock, not ore • Permanent markers (pins, bolts) In METARDU: → Create new project → Set survey type: Mining → Add control points as Primary
STEP 2
Instrument Setup
STEP 2 — SET UP IN TUNNEL Position total station for inclined measurements. Key points: • Centre over control point • Measure instrument height (HI) • Account for tunnel clearance • Ensure clear sight lines For inclined traverses: • Measure slope distance • Measure vertical angle • Measure horizontal angle
STEP 3
3D Traverse
STEP 3 — RUN INCLINED TRAVERSE Measure between stations with full 3D data. In METARDU Mining Tools: → Select 3D Traverse → Enter slope distance → Enter vertical angle (+ or -) → Enter horizontal bearing → Calculate 3D coordinates Formula: HD = SD × cos(VA) VD = SD × sin(VA) ΔE = HD × sin(bearing) ΔN = HD × cos(bearing) ΔZ = VD
STEP 4
Volume Calculation
STEP 4 — CALCULATE VOLUMES Compute volumes from cross sections. In METARDU Mining Tools: → Select Volume calculator → Choose method: - End Area (simple) - Prismoidal (accurate) - Cut/Fill (for earthworks) Enter section areas at chainages.
STEP 5
Subsidence Monitoring
STEP 5 — MONITOR SUBSIDENCE Track point movement over time. In METARDU Mining Tools: → Select Subsidence Monitoring → Enter epoch 1 coordinates → Enter epoch 2 coordinates → Calculate 3D movement Track: • Vertical settlement (ΔZ) • Horizontal movement (ΔE, ΔN) • Total 3D displacement
STEP 6
Generate Report
STEP 6 — MINING SURVEY REPORT Document your survey results. Include: • Traverse calculations • Volume computations • Subsidence data • Control point coordinates In METARDU: → Export as PDF → Include all calculations