汶川地震对松潘县某水电施工控制网的影响检测  

Detection the Affect of Some Hydropower's Construction Control Network by Wenchuan Heavy Earthquake

作　　者：白铁勇[1] 余代俊[1] 朱学强[1] 李春华[2] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [2]成都市勘察测绘研究院,四川成都610081

出　　处：《测绘》2010年第1期39-41,48,共4页Surveying and Mapping

摘　　要：本文通过对松潘县某水电施工控制网在5.12汶川大地震震前震后的观测数据进行处理,发现GPS点位发生了较大的变化。结合该地区的实际地质情况分析,地震对该地区产生了一定的影响。水电施工过程中应以第二次复测提供的控制点数据为准,从而为水电施工提供了准确可靠的控制成果。This article analyzed the observation data of some hydropower＇s construction control network in Song Pan County. By comparing the observation data before and after 5-i2 Wenchuan heavy earthquake, we found that great changes of GPS sites had taken place. We synthetically analyzed the geological condition of the region and get a conclusion： the heavy earthquake had a certain impact in this region. Therefore the hydropower＇s construction process should be based on the second retest data so as to provide an accurate and reliable control result for the hydropower＇s construction.

关 键 词：GPS 控制测量 检测 汶川大地震 

分 类 号：P258[天文地球—测绘科学与技术]