2023·02基础研究37ModernChemicalResearch当代化工研究2023·02基础研究37ModernChemicalResearch当代化工研究古城煤矿N1305工作面沿空留巷变形规律研究＊李永盛1*高放2杨彬2（1.山西潞安矿业（集团）有限责任公司古城煤矿山西0460002.太原科技大学山西030024）摘要：为了研究沿空留巷围岩活动变形规律，基于古城煤矿N1305无煤柱开采工作面对巷道变形速度、形式及巷旁充填体的受力进行分析。采用十字布线法监测巷道表面位移，并在充填体植入压力盒监测受力，实验结果表明：巷道顶底板移近量和两帮移近量较为均衡；围岩变形在工作面后方15～95m范围内由剧烈到平缓，95m后围岩活动基本稳定；充填体载荷在距工作面10～40m呈拟二次函数急剧增大，之后逐渐降低趋向稳定的5.2MPa。研究结果对沿空留巷设计具有一定参考意义。关键词：沿空留巷；巷道；顶底板移近量；两帮移近量；巷道表面位移中图分类号：TD文献标识码：AStudyonDeformationLawofGoafRetainingRoadwayinGuchengCoalMineN1305WorkingFaceLiYongsheng1*,GaoFang2,YangBin2(1.GuchengCoalMine,ShanxiLu'anMining(Group)Co.,Ltd.,Shanxi,0460002.TaiyuanUniversityofScienceandTechnology,Shanxi,030024)Abstract：Inordertostudytheactivedeformationlawofsurroundingrockalonggoafretainingroadway,basedonN1305pillarlessminingfaceofGuchengCoalMine,thevelocityandformofroadwaydeformationandtheforceofbackfillbodybesidetheroadwaywereanalyzed.Thecrosswiringmethodwasusedtomonitorthesurfacedisplacementoftheroadway,andthepressureboxwasimplantedinthefillingbodytomonitortheforce.Theexperimentalresultsshowthatthedisplacementoftheroofandflooroftheroadwayandthedisplacementofthetwosidesarerelativelybalanced.Thedeformationofsurroundingrockvariesfromseveretogentlewithin15～95mbehindtheworkingface,andtheactivitiesofsurroundingrockarebasicallystableafter95m.Theloadofbackfillincreasessharplyasaquasiquadraticfunction10～40mawayfromtheworkingface,andthengraduallydecreasestoastable5.2MPa.Theresearchresultshavecertainreferencesignificanceforthedesignofgoafretaininglane.Keywords：keepthelanealongthegoaf；roadway；proximityoftopandbottomplate；amountoftwosidesmovingcloser；roadwaysurfacedisplacement引言沿空留巷作为一种无煤柱护巷...
