Research on Construction Technology of Underground Comprehensive Pipe Gallery Using Combined Aluminum Alloy Formwork
Aiming at the problems of poor construction quality and lateral displacement of the bottom plate,side plate and top plate of the underground comprehensive pipe gallery,this paper puts forward the construction technology of the underground comprehensive pipe gallery using the combined aluminum alloy formwork.The main structure of the underground comprehensive pipe gallery is excavated openly,the pipe gallery is excavated in the top-down and layered block forms,and the foundation pit enclosure of the pipe gallery is arranged to ensure the construction quality of the main structure of the pipe gallery.The full-section aluminum alloy formwork components of the underground comprehensive pipe gallery are prefabricated,and the pipe gallery segments are connected into a whole through prestressed tendons to reduce the cross-section of the pipe gallery structure and provide a guarantee for reducing the transportation and lifting load.The aluminum alloy combined formwork of the pipe gallery is lapped,the top plate,bottom plate and side plate of the pipe gallery structure are all constructed with aluminum alloy formwork,and the weight of the pipe gallery is born by aluminum alloy bracing components,so as to meet the construction quality requirements of the underground comprehensive pipe gallery.
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