Considering that the disposal and demolition of offshore oil and gas platforms has been gradually industrialized,the forms of structures to be dismantled are diverse,and the structures that have been dismantled in Bohai Sea,South China Sea,Gulf of Thailand and other sea areas were analyzed.The design process,structure characteristics and special design method of dismantled special-shaped structures for transportation and sea-fastening were summarized,such as the new tool designed for the loading and transportation of the pile easy to break free from jacket to meet various unloading methods and effectively solve the difficult problem of easily-detached pile,adopting the non-welding sea-fastening method for the large tanks containing flammable and explosive residues to solve the problem of non-ignition,the transportation mode of array structure to shorten the construction period and solve the technical problems that the structure with poor stability is prone to overturn and the single pile is too heavy in the transportation,etc.The methods described in this paper had achieved good implementation results in engineering practice and had been recognized by authoritative institutions.
关键词
运输固定/异型结构/易脱桩导管架/易燃易爆大型储罐/稳性差的组块
Key words
sea-fastening/special-shaped structure/the pile easy to break free from jacket/the tanks contain flammable liquids/poor stability structure
维普
万方数据