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1、摘要长阳县茶园坪煤炭有限责任公司茶园坪煤矿位于湖北省长阳县资秋镇境内，企业为股份制小型企业。本矿井位于中低山地区，矿区地表高差变化大，最低处在井田范围中部的天池河底，标高+206m，地形最高处在矿区西南角，标高+1330.6m,相对高差11624.m。矿区内没有发现断层，褶皱等影响开采的地质构造，地质构造简单，主要开采二叠系上统龙潭煤组煤层，煤层走向近东西，方位角为90—270°；倾向方位角0°，走向长度约3000m，斜长平均924m，煤层倾角在25°以上，+450m以上平均倾角44°。煤层平均厚度0.52m。煤层瓦斯相对涌出量1.3m3/t，绝对瓦斯涌出量为0.6m3
2、/min，属于低瓦斯矿井。矿井面积2.72km2，开采深度+200m～+900m，煤层可采储量为166.56万吨，矿井设计生产能力9万吨/年，矿井服务年限14年。采用阶梯平峒上山开拓，单一走向长壁式采煤法，炮采采煤工艺，双翼后退式上山开采，年工作日330天，三八工作制，“两采一准”。根据以上矿井煤层地质技术条件，进行茶园坪煤矿矿井初步设计。关键词矿井初步设计龙潭煤组阶梯平峒爆破采煤工艺单一走向长壁采煤法双翼后退式回采上山开采ABSTRACTChayuanpincoalmineofChangyangcountyChayuanpingmineCo.Ltd.,asmallpr
3、ivatejoint-stockenterprise,isseatedinZiqiuTownshipChangyangCountyinHubeiProvince.Thismineislocatedinmid-lowregions,andsurfaceupsanddownschangesharply.ThelowestplaceintheTianchilake’sbottomofthemineareaandthelevationof+206m.Thehighestplaceinthecornerofthesouthwestandtheelevation1330.6m.He
4、ightdifferencebetweenthemis11624m.Withintheminingarea,geologicalstructuresuchasdrapeandfaultwhichaffectmininghasn'tbeenfound.Basedonthesimplegeologicalconditions,minebedupperpermiansystemLongtanFormationismainlymined;eastwesttrendabouttheminebed;azimuthof90-270°,tendencyorientationof0°;t
5、rendlengthofnearly3000m;inclinedlengthof924m;inclinedangleofabove25°;theaverageobliqueAngleofabove450mof44°.Theaveragethicknessis0.52m.Relativegasemissionofthecoalbedis1.3m3/t,andabsolutegasflow-volumeis0.6m3/min,sotheminebelongstothelowerone.Mineareaof2.72km3,miningdepthof+200m~+900m,re
6、coverablereservesoftheminefor1.6656milliontons,thedesignofmineproductioncapacityof9milliontons/year,theservicelifeofcoalmineof18years.Usesladdertypegallerydevelopmentsystemandwinningtothetopmethod,thesingletrendlongwallminingmethod,demolitionminingcraft,doublewingsretreatingtypedipheadin
7、gmining,workingdaysinoneyearof330days,three-shiftworkdaysystem,“twominingandonebackworking”.Accordingtotheaboveminecoalgeologyconditions,carryonthepreliminarydesignfortheChayuanpingcoalmine.KeywordMinepitpreliminarydesignLongtancoalgroupStepsandladdersevencaveDemolitionmi
