精密三角高程测量在宽水域跨河水准中的应用  

The application of precise trigonometric leveling in long distance river-crossing leveling

作　　者：刘冠兰[1] 李东宇[2] 丁文宏 

机构地区：[1]武汉大学,武汉430079 [2]中铁上海设计院集团有限公司工程勘察院,上海200333 [3]中铁十九局集团第二工程有限公司,辽宁辽阳111000

出　　处：《工程勘察》2010年第10期71-74,共4页Geotechnical Investigation & Surveying

摘　　要：参照《国家一、二等水准测量规范》,在二等跨河水准的测量(测距三角高程法)中,采用两台全站仪同时对向观测,大大削弱了大气折光的影响,简化了作业过程,提高了作业效率。为保证测量精度,对每次对向观测的测量精度进行了分析。The precise trigonometric leveling is used for river-crossing leveling and the details of the method are based on the specification for the first and second order leveling. Simultaneous reciprocal observation is realized by setting the two total stations at each side of the river. The influence of atmospheric refraction is decreased and the workflow is also simplified and more efficient. The accuracy of reciprocal observations is analyzed at each time to guarantee the accuracy of the final results.

关 键 词：精密三角高程测量 跨河水准 测量机器人 

分 类 号：P224.2[天文地球—大地测量学与测量工程]