山东地壳运动速度场模型建立与分析

发布时间：2018-03-08 17:02

  本文选题：CORS　切入点：山东地壳运动　出处：《测绘科学》2017年07期 　论文类型：期刊论文

【摘要】：建立高精度的地壳运动速度场模型是实现区域大地基准动态维持,反映地面形变,保障基础设施工程建设的重要途径。针对点位分布密集、精度可靠和多年连续重复观测等准确获取区域地壳运动速度场模型的关键问题,通过对山东及周边省份2010年1月—2015年11月连续近6a的130座连续运行参考站点在ITRF2008框架下进行处理,获取时间序列。首次完整建立了山东省地壳运动速度场模型。通过模型分析表明:水平方向,山东省地壳整体向东南方向运动,平均速率为34.3mm/a,运动方向为SE110.25°;垂直方向,鲁中山区及胶东半岛地区地壳较为稳定,鲁北、鲁西等华北平原地区存在显著沉降,最大沉降量位于广饶漏斗区,年沉降量81.6mm/a。
[Abstract]:Establishing a high precision velocity field model of crustal movement is an important way to realize the dynamic maintenance of regional geodetic datum, to reflect ground deformation and to ensure the construction of infrastructure engineering. The key problems in accurately obtaining the velocity field model of regional crustal movement, such as reliable accuracy and continuous and repeated observation for many years, are discussed. Through the processing of 130 continuous operation reference stations in Shandong and its surrounding provinces from January 2010 to November 2015 for nearly 6 consecutive years, under the framework of ITRF2008, The velocity field model of crustal movement in Shandong Province is established for the first time. The results of model analysis show that the horizontal direction, the whole crust of Shandong Province moves southeast, the average velocity is 34.3 mm / a, the direction of movement is SE110.25 掳, the vertical direction is vertical. The crust is stable in Shandong Central Mountain area and Jiaodong Peninsula, and there is significant subsidence in North China Plain, such as North Shandong and West Shandong. The maximum subsidence is located in Guangrao funnel area, and the annual subsidence is 81.6 mm / a.
【作者单位】： 山东省国土测绘院;山东城市建设职业学院;山东省泰山气象站;
【基金】：教育部中央高校基本科研业务费专项资金项目 中国科学院遥感与数字地球研究所项目 四川省应急测绘保障与地质灾害监测工程技术研究中心开放研究基金项目(K2014B003) 国家博士后基金项目(2011M501400)
【分类号】：P227;P228.4
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本文编号：1584768