Large Scale Ground Instability Caused By Failure of Underlying Pillars: A Case Study of Dynamic Multiple Seam Interaction

摘要

Severe dynamic multiple seam interactions can occur when active mine workings are subsided by underlying mining activity. The most dramatic events are usually caused by longwall mining or pillar recovery beneath open, overlying entries. But pillars in abandoned workings can also fail and cause subsidence and damage an overlying mine.