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(接上期)薄壁混凝土围堰薄壁混凝土围堰一般适用于陆地基坑围护,由于薄壁混凝土围堰配筋率较低,在围堰下沉施工中应防止围堰开裂。由于围堰自重大,辅助挖泥或吸泥下吊箱围堰吊箱围堰广泛应用于高桩承台基础施工,单壁吊箱围堰抽水水位差一般在10 m以内,否则需要强大的支撑结构,以致可能影响墩身结构施工,双壁
(Continued) Thin-walled concrete cofferdam Thin-walled concrete cofferdam is generally suitable for the protection of the foundation pit, due to the low reinforcement ratio of thin-walled concrete cofferdam, cofferdam should be prevented from cracking in cofferdam sinking. Due to the large cofferdams, auxiliary dredging or suction under the cofferdam coffer cofferdam cofferdam is widely used in high-pile caps foundation construction, single-wall cofferdam cofferdam pumping water level is generally less than 10 m, or need a strong Support structure, which may affect the pier body structure construction, double wall