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近年来,国内大量高层建筑的涌现,使逆作法成为多层地下室施工的一个重要手段。尤其是对环境保护要求较高的工程,在繁忙路段施工、交通封锁有严格限制的工程,采用逆作法施工更为适宜。 1 立柱(桩)设置 逆作法施工要设置立柱,一方面作临时支撑,同地下墙一起承受地下和地上各层的结构荷载和施工荷载,若立柱与主体结构相结合,又可在底板封底后,外包混凝土形成组合柱;另一方面立柱桩能对土体产生摩阻力,布置较密的
In recent years, the emergence of a large number of high-rise buildings in China has made the reverse method an important means for the construction of multi-storey basements. Especially for projects requiring higher environmental protection, construction with strict restrictions on the construction of busy road sections and traffic restrictions is more appropriate. 1 Uprights (piles) are to be erected in reversed construction. On one hand, they are used for temporary support. They are used together with the underground walls to bear the structural loads and construction loads on the ground and on the ground. If the columns are combined with the main structure, they can be installed on the bottom of the floor. , Outsourcing concrete forms a combined column; On the other hand, post piles can generate frictional resistance to the soil, and arrange denser