Research on surface movement deformation characteristics of full-pillar extraction by filled wide working face layout in strip mining

摘要

Full-pillar extraction by filled wide working face layout in strip mining resolved the course of surface deformation and moving into two period drew support from wide working face layout in partial mining, filling in roof falling zone and full-pillar extraction It could carry point of reducing mining effect and protecting surface.This paper explained technical principle of full-pillar extraction by filled wide working face layout in strip mining, and analysed effect of wide working face partial mining and roof filling in falling zone in this technology, and researched the features of surface deformation and moving with this technology in a demonstration.