综采工作面过空巷充填加固技术应用分析.pdfVIP

.58西煤灰科技2024年第4期

综采工作面过空充填加固技术应用分析

陈祥祺

太原030006)

（山西安煤矿业设计工程有限公司，山西

摘要：为解决榆树坡矿1207工作面过空巷期间围岩稳定问题，借助数值模拟、实验测试、工程类比等方法，对空巷附近煤

岩体塑性破坏特征及加固工艺进行详细探讨；分析表明，不采取加固措施条件下空巷与工作面间煤柱临界安全宽度10m，

充填加固时充填体强度大于4MPa时效果较好，水灰比4:1的高水材料浆液凝固强度可满足要求；选择分段阻隔充填法进

行1207空巷的加固，有效保障了工作面过空巷的安全稳定性。

关键词：综采工作面：空巷加固；充填工艺；水灰比；高水材料

中图分类号：TD823.8文献标识码：A

ApplicationAnalysisofFillingReinforcementTechnologyduringCrossingAbandonedRoadwayatFully-mechanize

WorkingFace

ChenXiangqi

(ShanxiAnmeiMiningDesignEngineeringCo.,Ltd.,Taiyuan,Shanxi030006)

Abstract:Toguaranteethestabilityofsurroundingrockduringcrossingabandonedroadwayat1207workingfaceofYushupo

Colliery,theauthormakesananalysisoftheplasticfailurecharacteristicsofcoalrockmassneartheabandonedroadwayandthe

reinforcementtechniquebymeansofnumericalsimulation,experimentaltestandengineeringanalogy,whichshowsthatthe

criticalsafetywidthofcoalpillarbetweentheabandonedroadwayandtheworkingfaceis1omunderconditionofno

reinforcementmeasures;whenthestrengthoffillingbodyisgreaterthan4MPa,theeffectoffillingreinforcementisbetter,the

solidificationofhigh-watermaterialslurrywith4:1water-cementratiocanmeettherequirements;andtheabandonedroadway

reinforcementbystagedisolationfillingmethodcanguaranteethesafetyandstabilityofworkingfaceduringcrossingthe

abandonedroadway.

Keywords:fully-mechanizedworkingface;abandonedroadwayreinforcement;fillingtechnique;water-cementratio;high-water

material

层，其中DF33正断层较发育，为进一步探查其位

1工程概况