全漂浮状态下整平船自身稳定性分析

Self-stability analysis of leveling ship under full floating condition

针对大连湾海底隧道项目特殊地质条件,基床整平使用“津平1”进行全漂浮整平,全漂浮整平虽然可以完全避免桩腿对基础的压力,但要考虑潮汐、波浪、风等因素对船体稳定性及整平精度的影响,需要分析全漂浮状态下整平船自身稳定性。通过分析验证全漂浮整平的可行性,得出工艺参数,对后期类似工程有较大的借鉴意义。

In view of the special geological conditions of the Dalian Bay Immersed Tunnel Project,the foundation bed is leveled using the leveling ship"Jinping 1"with full floating leveling,although the pressure of the pile legs on the foundation can be completely avoided,but to consider the influence of tides,waves,wind and other factors on the stability and leveling accuracy of the hull.It is necessary to analyze the self-stability of the leveling ship under the condition of fully floating.Through the analysis and verification of the feasibility of full floating leveling,it is concluded that the process parameters have great reference significance for similar projects in the later stage.