Study on relationship between coal caving step distance and top coal caving recovery rate based on ellipsoid theory
TIAN Duo
SHI Hao-yu
FU En-jun
NIU Guo-xing
Keywords：top coal cavingellipsoid theorycoal caving step distancetop coal caving recovery rate
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)