摘要
上海市兴建的磁悬浮快速列车工程 ,要求离地面 10多m高的轨道梁高程定位的精度为± 1mm ,如此高精度的要求采用精密的水准测量是难以实施的 ,故采用不量仪器高。
The Magiev Transrapid Project is under construction in Shanghai at present.It is required that the tolerance for girder positioning of the 10\|meter\|high track is less than 1mm.Considering the leveling could hardly meet such high precision,we propose to introduce the Triangular survey ignoring the height of the instrument & Prism to achieve elevation transfer.$$$$
出处
《铁路航测》
2002年第1期38-40,共3页
Railway Air Survey
