| GPS PPP技术用于滑坡监测的试验与结果分析 |
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| 引用本文： | 王 利,张 勤,黄观文,涂 锐,张双成.GPS PPP技术用于滑坡监测的试验与结果分析[J].岩土力学,2014,35(7):2118-2124. |
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| 作者姓名： | 王 利 张 勤 黄观文 涂 锐 张双成 |
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| 作者单位： | 1. 长安大学 地质工程与测绘学院，西安 710054；2. 长安大学 西部矿产资源与地质工程教育部重点实验室，西安 710054； 3. 德国波茨坦地学中心，波茨坦 14469 |
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| 基金项目： | 国家自然科学基金资助(No. 40902081，No. 41104019，No. 41274005，No. 41202189)；国土资源大调查项目资助(No. 1212011220186)；地理信息工程国家重点实验室开放基金资助(No. SKLGIE2013-Z-2-1)；宇航动力学国家重点实验室开放基金资助(No. 2013ADL-DW0103)。 |
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| 摘 要： | 为了研究全球定位系统(GPS)精密单点定位(PPP)技术用于滑坡等地质灾害监测时可能达到的精度和可靠性等问题,结合某类滑坡的大型物理模型试验,在滑坡体上布设了若干GPS监测点进行连续实时动态监测,利用PPP技术对该滑坡从稳定、开始滑动直至产生破坏的全过程监测数据进行了处理与分析,并与GPS单历元差分定位、载波相位实时差分定位技术监测结果进行了对比。结果表明:GPS PPP技术监测结果的内符合精度约为10 mm,外符合精度约为40 mm,且GPS PPP技术具有一些差分GPS无法比拟的优势,如无需基准站支持、作业成本低、效率高、可直接获取监测点在国际地球参考框架下的绝对坐标等。该技术完全可用于滑坡等地质灾害的实时动态监测和预警。
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| 关 键 词： | 全球定位系统(GPS) 精密单点定位(PPP) 滑坡 变形监测 |
| 收稿时间： | 2013-08-14 |
Experiment results and analysis of landslide monitoring by using GPS PPP technology |
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| WANG Li,ZHANG Qin,HUANG Guan-wen,TU Rui,ZHANG Shuang-cheng.Experiment results and analysis of landslide monitoring by using GPS PPP technology[J].Rock and Soil Mechanics,2014,35(7):2118-2124. |
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| Authors: | WANG Li ZHANG Qin HUANG Guan-wen TU Rui ZHANG Shuang-cheng |
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| Institution: | 1. School of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054, China; 2. Key Laboratory of Western China’s Mineral Resources and Geological Engineering, Ministry of Education, Chang’an University, Xi’an 710054, China; 3. German Research Center for Geosciences (GFZ), Potsdam 14469, Germany |
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| Abstract: | In order to study the precision and reliability, when the global positioning system (GPS) precise point positioning (PPP) technology is used to monitor the deformation of landslide or other geological hazards, some monitoring points are set on the landslide body and GPS PPP technology is used to monitor the landslide with real-time combined a big physical model experiment of a kind of landslide. Through the processing and analysis of monitoring data of the landslide from stable condition, start sliding to breaking down, the monitoring results of GPS PPP, GPS single epoch differential positioning and carrier wave phase real-time kinematic positioning are contrasted. The results show that the internal accordant accuracy of GPS PPP technology can achieve about 10 mm and the external accordant accuracy can achieve about 40 mm. And GPS PPP technology also has some superiority which the differential GPS does not have, such as without base-station, low cost, high efficiency and can obtain the absolute coordinates of monitoring points under the international terrestrial reference frame. The GPS PPP technology can be used to monitor and forecast the dynamic deformation of landslide and other geological hazards. |
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| Keywords: | global positioning system (GPS) precise point positioning (PPP) landslide deformation monitoring |
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