| 摘要 |
FIELD: bridge building. ^ SUBSTANCE: method involves building supports on drilled piers connected one to another by grillage in water area with the use of self-lifting platform installed on drive inventory strings and on floating crane; assembling of metal span structures by back-conveyor method; moving metal span structures or transporting span structures by floating thereof; installing span structures in design position with rigid bridge forming. Floating crane is moved to support building area to create gauge piles. Guide conductor with cells arranged coaxially to support pile axes are installed on gauge piles. Self-lifting platform is formed as non-self-propelled pontoon. The pontoon has through shafts for columns installation, air and gauge-and-drying pipe system and spaced paired limiting members mounted on pontoon deck along sides thereof. Limiting members are arranged from pontoon side facing conductor. Limiting members are preferably made of channel bars with flanged facing each other. Gap between channel bars is filled with powder material. Reinforced concrete panels are laid on the top of powder material layer. Drill machine is movably installed on reinforced concrete panels so that drill machine may be displaced along pontoon. Pile is formed with the use of drill machine and protective pipes in accordance to above method. Then grillage and support body are concreted. ^ EFFECT: reduced material consumption and labor inputs, reduced building time due to improved manufacturability and work automation. ^ 12 dwg |
