摘要
Based on pile foundation construction of No.6 main pier,deep mudstone geological foundation and deep-water construction in Nanjing-Dashengguan Yangtze Bridge,the method of super-large-diameter bored pile in deep water is studied.The spread drill,application of PHP mud,and choice of machine are solved by adopting two machines of KTY4000 and KPG300A.Besides,the airlift reversing circulation is selected in slag discharge.The results show that this method can ensure successfully the construction of pier foundation to satisfy the demands of codes.
