论长大干线复杂地形带状控制网的布控方法

Control Method of Complex Terrain Banded Control Network for Large Trunk Lines

结合蒙华铁路MHTJ-17标段测区控制网的测量实例,从测区基本概况、控制网网形设计及控制点的选点埋石、观测要点及资源配置、测量效果等4个方面进行了详细阐述,建议在长大干线复杂地形控制网尽量布设成三角形或大地四边形,采用固定参考点法进行测量,以增强网形稳定性,提高平差精度。

Combined with the measurement example of control network of MHTJ-17 section of mongolia-china railway,the paper elaborates from 4 aspects,such as basic survey of measuring area,design of net shape of control network and the selection of control points,Observation points and resource allocation,measurement effect,proposes that the triangle or earth quadrilateral in the complex terrain control network of the long trunk line should be set up as far as possible,the fixed reference point method is used to measure it,in order to enhance the stability of the net shape and improve the precision of the adjustment.