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鹤大高速公路ZT07标段二道松花江特大桥在施工过程中产生了一系列新技术成果。采用国内先进SR315RC型旋挖钻机进行超长桩基施工;采用克服坚硬地质静压植桩技术进行超厚砂、卵石层承台钢板桩施工;发明了体外劲性骨架和高空防坠落网装置,并将其用于高墩翻模施工中;通过冬季施工保温措施,优化施工配合比,确保严寒气候条件下0号、1号块的施工质量;通过连续梁结构优化,进行施工监控,采取菱形挂篮进行连续刚构施工。实践表明,该桥在施工中采用的一系列关键技术,能够有效解决施工难题,降低安全、质量风险,加快施工进度和节约施工成本。
Zhaotuo Expressway ZT07 tenders two Songhua River Bridge in the construction process has produced a series of new technological achievements. The advanced SR315RC type rotary drilling rig is adopted to carry out the construction of super-long pile foundation. The construction of ultra-thick sand and pebble-cap pile-plate piles is overcome by adopting the technique of static geostress grafting with hard geology. An in vitro rigid skeleton and anti-fall net device are invented, And use it in high-pier turning mode construction; through the winter construction insulation measures, optimize the construction mix, to ensure the construction quality of blocks 0, 1 in the cold climate conditions; through the continuous beam structure optimization, construction monitoring, diamond Hanging basket for continuous rigid construction. Practice shows that the bridge used in the construction of a series of key technologies that can effectively solve the construction problems, reduce safety and quality risks, speed up construction progress and save construction costs.