LGO与科傻平差软件在滑坡变形监测中的应用  

Application of LGO and COSA in Surface Deformation Monitoring of Landslide

作　　者：商曼 刘志锋 

机构地区：[1]广州市房地产测绘院,广东广州510010 [2]广州地铁设计研究院有限公司,广东广州510010

出　　处：《北京测绘》2017年第5期68-72,共5页Beijing Surveying and Mapping

摘　　要：目前白鹤滩水电站正在紧锣密鼓地建设中,为有效地判断白鹤滩水电站附近恩子坪2号滑坡体的稳定性,确保滑坡体的安全,减少滑坡带来的种种危害,本文拟利用Global Positioning System(全球定位系统,简称GPS)技术对恩子坪2号滑坡体进行变形观测,数据解算是利用徕卡后处理软件LEICA Geo Office Combined(简称LGO)和科傻平差软件进行,其中LGO对整个监测网数据进行了基线解算和坐标投影,科傻平差软件进行网平差,并得到每期观测的点位坐标。通过分析对比不同时间的点位坐标变化即可及时掌握滑坡体的变形情况。实验结果表明,此方法平面观测精度大概在3mm,平面加高程精度大概在5mm左右,可以监测出滑坡体在雨季中的向河谷中心微小滑动的趋势,完全满足滑坡体变形监测的精度要求。At present Baihetan hydropower station is under construction.In order to determine the stability of the landslide near the Baihetan hydropower station and to reduce the damage caused by the landslide effectively,we take advantage of the Global Positioning System（GPS）to get the deformation of the Enziping’s second landslide in this paper.To calculate the solution of the data we observed,we use the Leica post-processing software LEICA Geo Office Combined（hereafter this text will be abbreviated as LGO）.We calculate the baselines and coordinate projection of the whole monitoring network,use COSA software for network adjustment,and get each period point’s coordinates.Then we can grasp the deformation of the landslide by analysing the points’ coordinates of different time.The results show that the plane accuracy of this method is 3 mm and the three-dimensional accuracy of this method is about 5 mm.This method can meet the accuracy requirements of landslide deformation monitoring.

关 键 词：GPS 滑坡 变形监测 LGO 科傻 

分 类 号：P228.4[天文地球—大地测量学与测量工程] P258[天文地球—测绘科学与技术]