变形监测网稳定性分析与数据维护的关键技术  

Key Technologies of Stability Analysis and Data Maintenance of Deformation Monitoring Network

作　　者：苏秀永 胡航 马向阳 SU Xiuyong;HU Hang;MA Xiangyang(Power China Huadong Engineering Co.,Ltd.,Hangzhou 310014,China;Zhejiang Huadong Mapping and Engineering Safety Technology Co.,Ltd.,Hangzhou 310014,China)

机构地区：[1]中国电建集团华东勘测设计研究院有限公司,浙江杭州310014 [2]浙江华东测绘与工程安全技术有限公司,浙江杭州310014

出　　处：《地理空间信息》2023年第9期22-26,共5页Geospatial Information

基　　金：国家自然科学基金资助项目(42102313)。

摘　　要：水电站在建设与运营期间均需通过变形监测及时掌握大坝以及近坝区滑坡体的真实形变,以便采取相应措施,确保工程实施和运营安全。通过复测分析变形监测网的稳定性,是日常变形监测工作的前提条件。实践证明,拟稳平差可适用于变形监测网平差,其中拟稳点的选择是关键。结合龙开口水电站变形监测网2012年首期建网以来逐年复测的稳定性分析与数据维护情况,介绍了选取拟稳点的常用方法,并对比分析了各方法的优缺点、适用性,以期为变形监测网复测数据处理提供参考。During the construction and operation of a hydropower station,it is necessary to timely grasp the real deformation of dam and landslide mass in the vicinity of the dam through deformation monitoring,so as to take corresponding measures to ensure the safety of project implementation and operation.Stability analysis of deformation monitoring network through re-measurement is a prerequisite for the daily deformation monitoring work.A lot of practice proves that the quasi-stable adjustment can be applied to monitor network adjustment effectively.The selection of quasi-stable point is the key.Combined with the re-measurement and data maintenance of deformation monitoring network of Longkaikou hydropower station since 2012,we introduced the common methods of selecting quasi-stable points,compared and analyzed the advantages,disadvantages and applicability of each method,in order to provide reference for deformation monitoring network re-measurement data processing.

关 键 词：变形监测网 拟稳平差 拟稳点 平均间隙法 限差法 

分 类 号：P258[天文地球—测绘科学与技术]