高冒破碎区交岔点注浆加固支护技术与应用郑金平

121.0300242.0460001301。TD354A2012-06-231981—、。1240t/a、、455.2m、482.8m、447.4m。《3》、、、、4°。35.08m。130112°31。、13012。1301A—A251、2。1301B—B0.6m1125。。1301、251、2、。4.2m3.6m9.7m。21B—B1672-5050201210-0055-03120.6m11。。9.7m。、。27XPM、。。、、。3B—B0.6m112。。。31①SK—CAB12~1880s~120s。②SK—AB1.5~2500s~100s。③。④0.4MPa~0.8MPa3m3/min。⑤、、。2①。②2。③2110.2m2。④2。⑤。⑥43m、5m、7m、9.3m0.3m~0.4mSK—CAB11。⑦SK—AB11。⑧A10s。3①。②、、。③。4115℃12h15℃~30℃。2。3。[1].[J].1994(04):67-72.[2].[J].1996(4):26-28.[3].[J].200510449-51.[4].[J].1989.12.48[1].[M].2007.[2].[J].2011,3911:27-30.[3][R]2010.AnchorNetsSupportTechnologyinLargeSectionCoalRoadwaysofHuoerxinheMineZHANGJun-peng(ShanxiInternationalHuoerxinheCoalCo.,ChangzhiShanxi046600)Abstract:TosolvetheproblemsofboltsupportingsysteminthelargesectionroadwaysofHuoerxinhemine,weanalyzedthecausesandfoundoutthattheprestressofbolt(anchor)wasthekeyinthesystem.Statisticalsimulationwasusedtostudytheboltpreload,lengths,intervals,anchoringpatterns,angles,steelbelts,andstresseffectsofanchorpreload.Thoughindustrialtestingandmonitoringofboltandanchorstress,ahighprestressintensivebolt-anchorsupportsystemwasestablishedwith400N·mboltpre-torqueand333KNanchorpreload,whichcouldimprovethesupportingeffectandcontrolthesurroundingrocksdeformationeffectively.Keywords:boltsupport;extendedanchor;intensivesupport;combinedsupport300kN300kN、。51、、。2、、。3。4、、10mm。TechnologyandApplicationofIntersectionGroutingSupportinTop-coalCollapseAreasZHENGJin-ping1,2(1.CollegeofMiningEngineering,TaiyuanUniversityofTechnology,TaiyuanShanxi030024;2.ShanxiSanyuanChinaEnergyCo.,ChangzhiShanxi046000)Abstract:Takinganexampleofcrossheadingintersectionon1301workingfaceofShanxiSanyuanChinaCoalCo.,itsstabilitywasstudiedwhentheintersectionmetwithlargesectiontop-coalcollapseareas.Thecombinedsupportwithpipe-roofandgroutingachievedremarkableeffectintheconstructionofthetop-coalcollapseareas.Keywords:top-coalcollapseareas;pipe-roof;grouting;support