凌津滩水电站大坝变形监测网跨河水准测量的实施  

IMPLEMENTATION OF RIVER-CROSSING LEVELING FOR THE DAM DEFORMATION MONITORING NETWORK IN LINGJINTAN POWER STATION

作　　者：徐勇[1] 张永[1] 薛武申[1] 

机构地区：[1]中国地质大学测绘工程系,武汉430074

出　　处：《工程地球物理学报》2005年第5期394-397,共4页Chinese Journal of Engineering Geophysics

摘　　要：当水准路线需要跨越大的水面或宽的峡谷时,由于视线超出常规水准的长度或前后视距相差很大,就必须采用跨河水准测量的方法,以指定的精度等级将本岸的高程传递到对岸。这在高程控制测量中是重点也是难点。三角高程测量以其快速、简便且能保证一定精度而受测绘工作者喜爱,如果能以全站仪代替水准仪进行跨河(湖、峡谷等)水准测量,这对于减少工作量,降低劳动强度具有重要意义。When the level route needs to cross over a large water surface or awide gorge, but because the sight goesheyond the length of traditional level or the distance between foresight and backsight is big, it must adopt river--crossing leveling method so as to pass the height on this bank to the other bank with the appointed precision, which is very difficult in the vertical control survey. If the total station replaces the level to make river（lake,gorge）- crossing leveling, then it will reduce people＇s work load.

关 键 词：精度 徕卡TCA2003 跨河水准 

分 类 号：P221[天文地球—大地测量学与测量工程]