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结合连云港西大堤平面位移监测实际 ,用统计检验方法对视准线观测的位移反向问题进行了较为深入的研究 ,得出了海堤上视准线观测受堤顶折光影响显著的结论。在大型海工建筑物的精密测量中有必要考虑大气折光影响。
Combined with the actual monitoring of the plane displacement of the western dike in Lianyungang, a statistical test is made to study the displacement inversion problem of the sight line observation. The conclusion is drawn that the sight line sighting on the sea wall is significantly affected by the refraction of the dike. It is necessary to consider the effects of atmospheric refraction in the precision measurement of large offshore structures.