摘要
针对单点变形分析的局限性提出了整体变形分析的等值线法。在现有四边形和三角形等值点追踪算法的基础上,提出了基于线段的等值点追踪算法,介绍了该算法的步骤;描述了用样条磨光—盈亏修正方法进行光滑插值的步骤,并对插值精度、有效性和适用范围进行了实例分析。以东江大坝水平位移监测数据生成的等值线为例,用等值线法分析大坝整体位移,可以发现单点分析方法不能发现的异常,全面地了解坝体变形现象。
Considering the limitation of single point deformation analysis, the contour＇method for integral deformation analysis is put forward. On the basis of quadrangle and triangle contour point tracing method, the line-oriented contour point tracing method and its process are presented. The spline smoothing and profit ＆ loss revision method is adopted for smooth interpolation. The process of interpolation is described. The interpolation precision, validity, and its applicability are tested by three example. The feasibility and validity of the contour method for integral deformation analysis are proved with the horizontal displacement monitoring data of the Dongjiang Dam. The abnormalities which cannot be found by single point analysis method can be found by the proposed method and thus, the dam deformation can be better understood.
出处
《水电自动化与大坝监测》
2007年第1期70-73,81,共5页
HYDROPOWER AUTOMATION AND DAM MONITORING
关键词
整体变形分析
等值线
等值线生成算法
integral deformation analysis
contour line
contour generating algorithm
