Numerical Simulation and Site Measurement of Development Height of Fractured Zone in Overburden Strata
LIU Weitao
CHEN Zhixing
ZHANG Maopeng
Abstract：Based on the mining technological conditions and rock mechanics parameters of Wusuotun Coal Mine, a numerical calculation model was established, numerical simulation was carried out on the failure of the plastic zone, the stress distribution and the change of vertical displacement in the overlying strata with the advance of the working face by using FLAC3D software, the stress criterion method was used to determine the height of water flowing fractured zone in overlying strata, and the failure height of overlying strata was verified with the empirical formula and through site measurement. The results showed that the use of numerical simulation to predict the failure height of overlying strata had higher accuracy and better superiority.
Keywords：height of fractured zonenumerical simulationsite measurementempirical formula
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 57-60 )