大同采煤沉陷区光伏示范基地110kV汇集站浅部采空区注浆治理技术

Shallow goal grouting technology under 110 kV collecting station in photovoltaicdemonstration base at Datong coal mine subsidence area

摘要: 为确保采煤沉陷区光伏基地运行良好，必须对基地下方采空区进行加固处理。以110 kV汇集站为例，通过钻探成果分析采空区情况，对地基稳定性进行评价。根据工程地质条件和采空区稳定性评价结果，确定采用注浆技术对汇集站下方采空区进行加固处理。设计确定了注浆治理方案。注浆施工完成后，对注浆加固效果进行了检测。结果表明，注浆加固治理方案设计合理，效果良好。

Abstract: In order to ensure photovoltaic facilities good condition，it is necessary to reinforce the coal mine goal below the base.Taking 110 kV collecting station as an example，the stability of the foundation is evaluated based on the analysis of the coal mine goal.According to the geological conditions and the evaluation results of the stability of goaf，the grouting technology is adopted to reinforce the goaf below the collecting station.The paper puts forward the grouting treatment scheme.After grouting，the reinforcement effect is tested.The results show that the grouting reinforcement scheme is reasonable and effective.