Control measures and practice for rock burst induced by overburden fracture in top-coal caving mining
LI Zhenlei
HE Xueqiu
DOU Linming
Abstract：By means of in situ investigation,theoretical analysis and engineering practice,the overburden movement,tremor disturbance and rock burst control measures in top-coal caving mining were studied.Also,the energy release of overburden fracture and the criterion for interval of roof pre-splitting were deducted.Resluts show that the tremor disturbance in top-coal caving mining which is one of the most important factors for rock burst occurrence is stronger than that in slicing mining due to its overburden movement characteristics.It is an effective rock burst control measure to weaken tremor disturbance by pre-splitting roof strata reasonably.The results were applied to field practice,and the method was effective in reducing tremors with high energy and eliminating rock burst occurrence.
Keywords：rock bursttop-coal caving miningoverburden fractureroof pre-splittingpre-splitting interval
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 162-171 )