线性工程控制测量中投影变形处理方法研究

对线性工程投影变形的特点以及解决方法进行了分析,并结合工程实例,通过对确定抵偿投影带和投影面的研究,获取了一种较为简便的控制长度变形的方法。在测区内采用一定限制的带宽和与设计高程相适应的投影面大地高,建立工程独立坐标系,即能有效地实现对两种长度变形的抵偿。实践证明,采用该方法能有效地解决线性工程控制测量长度投影变形问题。

Research on the Method of Projection Deformation Processing in Linear Engineering Control Survey

This paper analyzes the characteristics of the linear projection deformation and solution method,and combined with the engineering example,through research to determine the compensation projection zone and projection plane to obtain a relatively simple method to control the length of deformation,namely in the test area with limited bandwidth and compatible with the design elevation of the projection plane the earth is high,establish independent engineering coordinate system,which can effectively achieve the two length deformation compensation.The practice proves that this method can effectively compensate the projection distortion of linear engineering control measurement length.