多用途治黄水工船作业稳性研究

The Operating Stability of a Multipurpose Working Ship for Harnessing the Yellow River

本文将多用途水工船的作业稳性问题化为同时承受分布荷重、轴向力、水平力及弯矩的固定桩的承载力问题.在此基础上给出轴向容许承载力计算公式,用解析法分析地上部分的固定桩,求出地面处的内力与位移,并以此为初始条件采用迁移矩阵法对土中部分桩进行分析,从而得到整个固定桩的位移与内力.最后给出了水工船作业稳性标准.

The operating stability of a multipurpose working ship for harnessing the Yellow River is discussed. It is treated as a bearing capacity problem of the fixed pile with simultaneously applied distributed load, axial force, horizontal force and bending moment. The formula for calculating the allowable bearing capacity in the axial direction is given. The stress and displacement in the part of pile above the ground is solved by the analytic method. For the part below the ground, the transfer matrix maethod is used to solve the displacement and stress with those above the ground as the boundary conditions. The stability criterion for the working ship is suggested.