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1,(,472300):1,,:;;:TP624:B:1008-8725(2008)01-0146-02DiscussonChangingLawofCoalSeamThicknessofCaoyaoCoalmineGUOYuan-xin,HEHui-an(YimaCoalIndustry(Group)Co1,Ltd1,Yima472300,China)Abstract:Withthecartographyoftheisolinechartofcoalthicknessandotheranalyzingchart,thechanginglawofcoalthicknesswasdiscussed,andtheinfluencedfactorsforcoalthicknesschangingwereanalyzed1Keywords:coalthickness;law;discuss0,1,,,1,1111()0.71.3m1.33.5m3.58m8mP271552354133PP%20.311.339.126.33.01001,111303150m3911%,3150810m2613%125,,(),(km),:1511%,,,23m,,36%,9%(2824%),5210-6CO(2),12BE1-505(80130m3Pmin)22BE1-355(6070m3Pmin),2BE1-5052BE1-355,,(3),,,(4),,,,,,(5),,,;,,,4(1),,,(2),,2531m,56:[1].[M].:,2001,3.[2],.[M].:,1992,9().[3].[J].,2004,(4).[4].[M].:,2000,8.:2007-09-23;:2007-11-13:(1963-),,,,1986,(),Tel:0398-5898301,E-mail:hngyx185@sohu1com27120081CoalTechnologyVol127,No11Jan,2008Km()=n1()n()()=S()M()100%S=ni=1(Mi-M)2n-1M1:Km=103133=0177,=213217=85%12,12,,,,EW,NW,NE13,,:(1)4,6,10SW-NE,37125m;(2)12,10-3,,EW,39134m;(3)14,10-111-1,,NE,313136m;(4)D-1,D-2,12-6,12-2,12-7,NW,311170m;(5)12-4,,SN,4m;(6)13-3,13-4,-4,13-2,+200m,,NW-SE,3819m;(7)15-2,15-9,15-8,U,NW-SE,3815m;(8)16-3,16-618-2,,3615m;(9)H-0,17-9,,ES,35m;(10)Y-3,17-418-619-3,,NE,35m;(11)22-4,,NE,36m;(12)M-0,M-2,U,NW,56m;(13)24-4,25-2,,NE,3415m31,1,,1,,,213111,,11,1,,,9,215m,3m,2,2,37m,2,36m,3,1,:1147AutoCAD(,235053):AutoCAD,AutoCADAuto2CAD,,:;;AutoCAD:TP391:B:1008-8725(2008)01-0148-03DiscussionaboutRoadwayEngineeringAutoCADDesignDrawingZHANGFeng(ShitaiCoalMine,HuaibeiMiningIndustryGroupComp.,Huaibei235000China)Abstract:AutoCADistheworldsmostpopulargraphicssoftware.Thispaperwillbeusedforroadwayengi2neeringdesignAutoCADShaftEngineeringAutoCADdrawingdesignmerits.Citingexamplesofthemethodofdesignwork.Thisroadwayprojectdesignworkfortheproposednewideas.Keywords:roadwayengineering;design;AutoCAD0,;,,,33m,3m,56m,1013m,2326m,,,4,43m,8191m,,1823m,,,G-1,117135m,2178m,1146m1,,,,2,23m,6m,,1722m,,1,312,,,1,,23m5m,1,6,EW,1,,1,,3m,45m,,1,1,14(1)1,,,,,,-,500800m,,(2)1,,,,(3)1,1,,:[1][R].,2004.[2].[P].,1984.:2007-09-27;:2007-11-13:(1979-),,,,Tel:0561-493469727120081CoalTechnologyVol127,No11Jan,2008