Study of Three-dimensional Distribution of Permeability in Gob Based on O-shape Circle Theory
CHEN Peng
ZHANG Lang
ZOU Dongqi
Abstract：The permeability has a significant impact on the seepage field in gob. In order to make the simulation of the seepage field in the gob closer to the actual condition, the permeability distribution models both at home and abroad were summarized and the caving characteristics of the overlying strata in the gob were analyzed. Based on the O-shaped circle theory of the mining-induced fractures, study was made on the three-dimensional continuous distribution model of porosity and permeability in the gob. The results showed that the distribution model could reflect the three-dimensional distribution characteristics of permeability in the gob and it was continuous in the gob, so it was beneficial to the solution of seepage field in the gob.
Keywords：gobseepage fieldporositypermeabilityO-shape circle
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 38-41 )