以天津某大型电厂主厂房项目为例，论述了在淤泥质粉质粘土软弱地基施工条件下进行大截面钢柱吊装时，施工难度大、造价高的特点，通过对方案优化与技术经济的分析，选用了ZSC43180动臂变幅行走式塔式起重机进行吊装作业，达到了施工进度加快且费用降低的实际效果。%Taking the major workshop project of the large-scale power plant in Tianjin as an example,the paper discusses large-section steel-col-umn hoisting difficulties and high cost under slurry power soft soil foundation,the paper carries out scheme optimization and technological eco-nomic analysis,selects ZSC43180 moving-arm walking-style tower crane for hoisting work. As a result,it achieves the actual effect of speeding up construction schedule and lowing cost as well.
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