Bridge bearing platform structure capable of protecting underground structure and construction method thereof
A construction method and structure technology, applied to underwater structures, infrastructure engineering, protection devices, etc., can solve problems affecting structural safety, underground structures floating, increasing project investment, etc., to speed up construction, save project cost, The effect of reducing the excavation depth
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[0020] The present invention will be further described below in conjunction with the drawings.
[0021] The present invention is a bridge cap structure for protecting underground structures. The bridge adopts a cap structure to span the underground structure 1. It is characterized in that the cap is divided into two upper and lower floors, and the lower cap 2 is divided into several blocks, and UHPC post-cast is adopted. The belt 3 is connected as a whole, the upper platform is an integral pouring structure, the C20 cushion layer 4 is arranged at the bottom of the platform, and a flexible isolation layer 5 is arranged between the lower platform and the cushion layer 4.
[0022] In the above technical scheme, the foundation of the cap is excavated in blocks and the shaft is supported.
[0023] In the above-mentioned technical scheme, the sub-blocks of the lower cap are made of factory lashing steel bars and then hoisted in place as a whole, and the sub-blocks are poured with high-stre...
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