GPS跨河水准在大桥工程中的应用研究  

Application of GPS Over-river Leveling to Bridge Project

作　　者：李世良[1] 

机构地区：[1]中铁大桥勘测设计院有限公司,湖北武汉430050

出　　处：《地理空间信息》2009年第2期65-67,共3页Geospatial Information

摘　　要：结合某大型桥梁工程的GPS跨河水准数据,利用直线拟合、平面拟合、平均值法三种方法对跨河点进行高程拟合。通过和常规跨河水准所测跨河点间的高差进行比较,论证GPS跨河水准的可行性和优越性。This paper made the height fitting in three ways including line fitting, plane fitting and average method. Those data came from a large-scale bridge project＇s GPS control survey across the river. By comparing the verticle value result through the routine way, the feasibility and advantage of GPS over-river leveling was proved.

关 键 词：GPS 高程拟合 跨河水准 数学模型 

分 类 号：P228.42[天文地球—大地测量学与测量工程]