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1、第21卷第2期中國(guó)礦業(yè)Vo1.2iNo.22012年2月CHINAMININGMAGAZINEFeb.2012軟巖地層回采巷道合理支護(hù)技術(shù)探討朱濤,宋敏,朱冰冰。,馬立強(qiáng)(1.華潤(rùn)煤業(yè)控股有限公司工程技術(shù)部,北京100028;2.山東水利職業(yè)學(xué)院,山東日照276826;3.濟(jì)寧鹿洼煤礦,山東魚臺(tái)272350;4.中國(guó)礦業(yè)大學(xué)礦業(yè)工程學(xué)院,江蘇徐州221008)摘要:為進(jìn)一步發(fā)展軟巖回采巷道合理支護(hù)技術(shù),基于華潤(rùn)煤業(yè)五間房煤礦軟巖地層地質(zhì)特點(diǎn)和目前建設(shè)狀況,通過(guò)對(duì)現(xiàn)場(chǎng)鉆取或掏撬各煤層頂、底板巖層巖石試樣物理力學(xué)參數(shù)測(cè)試、回采巷
2、道圍巖松動(dòng)狀態(tài)的地質(zhì)雷達(dá)探測(cè)及分析、回采巷道斷面形狀與支護(hù)結(jié)構(gòu)形式的選擇,煤層7.0m厚以上條件下回采巷道支護(hù)參數(shù)設(shè)計(jì),復(fù)合支護(hù)結(jié)構(gòu)與參數(shù)設(shè)計(jì)的數(shù)值模擬優(yōu)化分析,得出了回采巷道合理支護(hù)結(jié)構(gòu)形式,對(duì)進(jìn)一步研究?jī)?nèi)蒙古錫林浩特煤田軟巖回采巷道合理支護(hù)技術(shù)具有一定的參考意義。關(guān)鍵詞:軟巖;回采巷道;合理支護(hù);圍巖松動(dòng);承載性能中圖分類號(hào):TD353.9文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1004—4051(2O12)02—0074—03StudyOilreasonablesupportingtechnologyofgatewayinthesof
3、trockstratumZHUTao,SONGMin。,ZHUBing-hing。,MALi-qiang(1.DepartmentofEngineeringTechnology,ChinaResourcesCoalHoldingsCorporationLimited,Beijing100028,China;2.ShandongInstituteofwaterconservancy,Rizhao276826,China;3.JiningLuwaCoalMine,Yutai272350,China4.CollegeofMinin
4、gEngineering,ChinaUniversityofMiningandTechnology,Xuzhou221008,China)Abstract:Inordertodevelopthereasonablesupportingtechnologyofgatewayinthesoftrockstratum,basedonthegeologicalcharacteristicsofthesoftrockstratumandthepresentsituationoftheconstructionofWujianfangco
5、almineofChinaresourcescoalholdingscorporationlimited,bythespecimenphysicalme—chanicsparametertestoftheroofandfloorstratarockwhichdrilledorcuttedonthesceneoftheeachcoalseam,thegeologicalradardetectionandanalysisofthesurroundingrockloosestate,thechoiceofshapesectiono
6、fgatewayandsupportingstructureforms,designofsupportingparametersofgatewayundertheconditionofmorethan7.OmthickcoalSe&m,thenumericalsimulationanalysisofcompositesupportstruc—tureandparametersoptimization.Thereasonablesupportingstructuresofthegatewaywereobtained.Fur—t
7、herstudyonthedevelopmentofrationalroadwaysupporttechniqueofgatewayinthesoftrockofWujian—fangcoalminehascertainreferencesignificance.Keywords:softrock;gateway;reasonablesupporting;stability1礦井概況的張性正斷層。井田內(nèi)可采煤層6層,煤類為褐煤華潤(rùn)煤業(yè)五間房西一煤礦位于內(nèi)蒙古錫林郭和長(zhǎng)焰煤,主采煤層賦存深度在98.0~702.92m,勒盟西烏
8、珠穆沁旗境內(nèi)。井田東西寬2.6~煤層厚度平均8.0m,地質(zhì)儲(chǔ)量1663.14Mt,可采9.0kin,南北寬約13.5kin,面積約87.2kin。井儲(chǔ)量832.88Mt,設(shè)計(jì)生產(chǎn)能力8.00Mt/a,礦井服田整體構(gòu)造為單斜構(gòu)造,走向NW,傾向NE,傾務(wù)年限74.3a。開拓方式為斜井開拓,主