Control Technology and Implementation Effect on Floor Heave of Roadway Induced by Deep Mining
SU Ke-shun
Abstract：In order to control the severe floor heave of the roadway induced by deep mining in Donghuantuo Coal Mine, the various controlling measures are simulated by numerical simulation software FLAC , such as pressure-relief groove, floor bolting, and floor drilling.The stress distribution and displacement characteris-tics of the roadway floor are analyzed in the condition of different measures.Additionally the combinatorial controlling measure of pressure relief method (pressure-relief groove) and reinforcement method (floor bol-ting) is put forward.And these control methods have been applied to a typical roadway affected by mining.The engineering test results show that the maximum displacement and the maximum rate of floor heave are within the controllable range and the combinatorial controlling technique can effectively control the floor heave .
Keywords：roadway induced by miningcombinatorial controlling floor heavefloor boltingpressure-relief groovenumerical simulation
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：6( 30-35 )