关键词: 滩、浅海, 固定设施, 冰力, 桩径, 平整冰

Abstract: Ice conditions must be identified first before designing an offshore structure in ice-infested waters, and the corresponding ice loads on the structure be estimated both in designing a new installation and in assessing the safety of an existing structure.This paper presents the study of ice loads on the installations in shallow-waters of Bohai Gulf.An ice load estimating equation is proposed for single ice sheet acting on vertical circular piles based on the comparison of the existing formulas.This equation includes the main influential factors having exact physical meanings and its results exhibit the best approximation of the mean values calculated by all the well-known formulas.As a result,a guideline for ice conditions and ice loads on fixed installations in shallow-waters of Bohai Gulf is recommended.

Key words: shallow-waters, fixed installation, ice load, pile diameter, single ice sheet