Study on Rupture Law of Overburden Strata and Parameter Optimization of High-level Borehole in Fully Mechanized Coal Face
CHEN Aihe
Abstract：In this paper, study was made on the rupturing law of the overburden strata with the working face advance by using the similar material simulation method according to mining conditions of 6135 fully mechanized coal face in Qidong Coal Mine. It was concluded by the comprehensive judgment according to the empirical formula and similar simulation results that the height range of the caving zone of overburden strata was about 0~7. 1 m and that of the ruptured zone was about 7. 1~30. 1 m; with FLAC3D simulation software, the angle range of the fracture development zone of the overburden strata was obtained, which provided reliable data for the optimization of high-level borehole layout parameters.
Keywords：overburden strata rupturedevelopment zone of wedge-shaped fissurehigh-level boreholeparameter optimization
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 47-50,55 )