Strip Coal Pillar Design Based on Estimated Surface Subsidence in Eastern China

Pillar design based on estimated surface (PDBES) is and its application in Daizhuang Coal Mine in eastern China is discussed. The purpose of strip coal pillar design is to use modern scientific and engineering practices to develop a safe underground mine in which the ground surface movement and deformation will be controlled to protect the surface buildings. This pillar design method is based on pre-mining estimations of surface subsidence. Surface subsidence is the main cause of potential damage to surface structures and must be estimated before coal mining.