摘要
目前在建及拟建的抽水蓄能电站,其站址部分位于林区,受到测区通视条件较差、采用全球定位系统(GPS)方案建立平面施工控制网时林木对卫星信号遮挡较大等因素限制,其平面施工控制网的建立困难重重。为了改善极端困难的林区条件下施工控制网的建设,本文分别采用GPS测量方案及多源数据联合平差方案进行了平面控制网成果计算及分析,证明多源数据联合平差方法可得到合格的平面控制网成果。在实施过程中需重点关注不同观测方法获取边长的兼容性,在控制网布设时要尽量避免相邻点之间高差过大,以取得较好的成果。
The pumped storage power stations currently under construction and planning are located in a forested area,which is limited by poor visibility conditions in the survey area and the large obstruction of satellite signals by trees when using a global positioning system(GPS)scheme to establish a planar construction control network.The establishment of their planar construction control networks is extremely difficult.In order to improve the establishment of construction control networks under extremely difficult forest conditions,this article used the GPS measurement scheme and joint adjustment scheme of multi-source data to calculate and analyze the results of the planar control network.It was proven that the joint adjustment of multi-source data could obtain qualified results of the planar control network.In the implementation process,it is necessary to focus on the compatibility of different observation methods to obtain side lengths and try to avoid large height differences between adjacent points when laying out the control network,so as to achieve better results.
作者
杨俊
冒福强
李川川
YANG Jun;MAO Fuqiang;LI Chuanchuan(PowerChina Northwest Engineering Corporation Limited,Xi’an,Shaanxi 710065,China)
出处
《北京测绘》
2024年第9期1376-1380,共5页
Beijing Surveying and Mapping
关键词
抽水蓄能电站
施工控制网
全球定位系统
多源数据联合平差
地面三角测量
pumped storage power stations
construction control network
global positioning system(GPS)
joint adjustment of multi-source data
ground triangulation
