Strata movement theory of dense backfill mining
Abstract：Since the fully mechanized solid backfill and mining technology actualizes dense back- fill in goaf, the laws of strata movement and surface subsidence in dense backfill mining method are different from caving mining method. Based on the systems analysis for equivalent mining height theory in backfill mining strata movement, this paper establishes the structural mechan- ics model, analyses mechanical properties of continuous media, and deduces corresponding for- mulas of strata movement and surface subsidence. In addition, through a case analysis, the pa- per puts forward that the traditional prediction parameters should be amended when the proba- bility integral method was used to predict the surface subsidence. The research results provide ideas, theories and methods for strata movement and surface subsidence analysis in dense back- fill mining.
Keywords：dense backfill miningstrata movement and surface subsidencemechanics of continuous mediasurface subsidence prediction
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 863-867 )