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胶济电化200 km/h客货共线路基从煤矿采空区上穿过。根据本采空区的设计地质勘探资料,采用填充式注浆的处理方案,分别采取自流式、压力式和间歇式注浆的施工方法,分序进行钻孔注浆,并对注浆效果进行检测,各项指标均满足设计要求,有效地控制了路基沉降,确保了路基施工质量。
Jiaoji 200 km / h passenger and freight co-line through the mined-out area. According to the design geologic exploration data of the goaf, the filling grouting treatment scheme is adopted, and the construction methods of gravity flow, pressure type and intermittent grouting are taken respectively, and the grouting results are grouped in sequence, and the grouting effect is carried out Testing, the indicators meet the design requirements, effectively controlling the settlement of subgrade to ensure the quality of subgrade construction.