Innovative Design of Key Nodes in Construction of Top-Down Construction

Changes in the form of key node structure can cause force problems in deep foundation project using reverse construction method. Combining engineering practice and literature in China and abroad in the past decade and analyzing the design and construction technique in the key node of the structure in hand, this paper propounds some ideas of innovation design, construction technology and measures in deep foundation project using reverse construction method. Having been evaluated in the construction safety, quality, period and cost, the ideas conform to the present standard requirement and are effective to solve problems when using reverse construction method. This will be a reference for similar project design and construction.