基础模板支设不牢固,浇筑混凝土下料过高、混凝土振捣撞击,使模板位移,造成基准线产生偏差。
The foundation template support is not strong, the pouring concrete is too high, the concrete vibration impact, so that the template displacement, resulting in the deviation of the baseline.
针对门机大梁以上特点,对梁体模板设计、混凝土浇筑振捣、梁体张拉施工技术难点进行了深入研究。
As to the above characteristics of the gantry crane, the further study has been made for formwork design, concreting and vibrating and girder in tension.
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