The Influence of Coal Seam Thickness and Coalface Width to Comprehensive Curve Charts of Radio-Wave Penetration
WU Rong-xin
XIAO Yu-lin
ZHANG Shi-kuo
WANG Guo-sheng
Abstract：The comprehensive curve charts of radio-wave penetration are the basic plots for analysis of geological anomalies within coalfaces .The influence of coal seam thickness and coalface width are stu-died in detail from the data of five coalfaces in Huainan coal mining corporation .The results are as fol-lows :①The thickness of coal seam affects the received field strength values of radio-wave penetration . The thicker the coal seam ,the higher the received field strength values ;and the thinner the coal seam , the lower the field strength values ;②The width of coalfaces affects the radian values of measured and theoretical field strength curves. The narrower the coalface ,the greater the radian value of curve , showing high in the middle and low on both sides .The wider the coal face ,the smaller the radian va-lue ,yielding an approximate horizontal line ;③The difference curves of field strength are near the zero , which are nearly unaffected by coal seam thickness and working face width .
Keywords：radio-wave penetrationcomprehensive curve chartmechanized working facegeological anomalies
Publication Date：2015-08-17
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 21-24 )