Investigation for Safety of Final Quarry Bench During Mine Closure Stage: A Case Study

Mine closure includes the rehabilitation process, which is a continuous programme aimed at restoring physical, chemical, and biological quality that has been harmed by mining to level acceptable all individuals involved. BIT Mesra was assigned R&D project on development of dragline dump profile both on-going closed mines. As part study, stability highwall investigated for this mine. The final quarry batter mine studied considering formation Planar, Wedge, Circular failure. Due favorable position, inclination orientation fault planes, i.e., F2-F2 other nearby probability Plane Wedge failure minimal. There no presence unidentified planes intersecting leading planar wedge Hence, circular involving minor structural discontinuities with help computerized model based Fellenius Bishop’s method. Accordingly designed optimum combination safety maximum extraction coal. It also ensured OB back filled floor exhausted in such way depth not more than 60 m, purpose rainwater harvesting pisciculture. This paper deals design bench discusses various geo-technical parameters carrying out analysis.