该施工优化方案主要是解决地质条件复杂,地下水位高,不宜开挖灌注桩成孔作业面的情况下,采用钢护筒进行钻孔灌注桩施工,在保证质量和安全的前提下,提高工作效率,加快工程进度,减少工程投资,取得了良好的经济效益,对同条件下桥梁、高层建筑桩基础施工具有一定的借鉴意义 The construction optimization program is mainly to solve the complex geological conditions, groundwater level is high, should not dig the perfusion pile into the hole in the case of work surface, the use of steel casing for bored pile construction, under the premise of ensuring quality and safety, improve work Efficiency, speed up the progress of the project, reduce project investment, and achieved good economic benefits, with the conditions of the bridge, high-rise building piles foundation construction has some reference significance