北京地铁6号线花园桥暗挖车站施工中,根据花园桥原桥桩的设计及受力特点,并结合砂卵石地层的注浆特点,研究注浆材料、方法和设备,对地层实施袖阀管的双控注浆,保证了花园桥的结构安全和西三环路的正常通行.%In construction of the covered-excavation Huayuanqiao Station of Beijing Subway Line 6,grouting material,method and equipment were studied according to original pile design and force bearing characteristics of Huayuan Bridge,as well as grouting characteristics of sandy cobble stratum.Double-control grouting of sleeve valve tube was adopted to guarantee the structural safety of Huayuan Bridge and normal trafficking of west third ring road.
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