| The 4th deep-water piles foundation construction platform of Liu Shui river right line bridge is the construction platform of steel-pipe piles and steel guide-wells as a support system. It makes full use of steel guide-wells as a great support system of construction platform, significantly savings project cost. the static and dynamic analysis about the construction platform affirms the unique advantages of the construction platform of steel-pipe piles and steel guide-wells as a a support system compared to other deep-water construction platforms. At the same time measure and control of the construction platform are also discussed in this paper.First of all, this paper introduces existing deep-water construction platforms and platform design and analysis methods. In the paper, ANSYS program is used to model the real structure. All analysis includes dynamic analysis and static analysis of the most disadvantaged states and all analysis are based on structural mechanics theory and relevant national norms and construction of the design requirements . The factors which affect strength and stiffness of construction platform of steel-pipe piles and steel guide-wells as a a support system are found out by the analysis of the dangerous states during the construction. The factors can be the parameters of measure and control during the construction.The displacement response curve of reference points under dynamic load of the drilling machine by dynamic analysis, and reachs a useful conclusion by comparing a displacement response curve of the units and harmonic load. Finally, the control technology and standards of construction platform in which steel-pipe piles and steel guide-wells as a support system are analyzed in this paper , and the general temporary structural measure methods is discussed by the analysis of the measure process.
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