Holing

{
  "id": "MLC-T-IND-002859",
  "term": "Holing",
  "field": "Industrial and trades",
  "definition": "The action of creating an opening between two separate underground mine workings, such as connecting a tunnel to a shaft or joining two advancing drifts. This process establishes ventilation circuits, creates secondary escape routes, or provides access for transporting materials and ore. The final blast that connects the two workings is carefully planned and executed, with the area evacuated as a precaution against air blasts or unexpected rock failure.",
  "subject": "Mining and extraction",
  "translations": {
    "de": "Untergraben",
    "es": "socavado",
    "fr": "havage"
  },
  "url": "https://mlchart.com/terminology/industrial/holing/"
}