CAJ | 학술논문

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。
위료연구전구정위계통（GPS）정밀단점정위（PPP）기술용우활파등지질재해감측시가능체도적정도화가고성등문제，결합모류활파적대형물리모형시험，재활파체상포설료약간GPS감측점진행련속실시동태감측，이용PPP기술대해활파종은정、개시활동직지산생파배적전과정감측수거진행료처리여분석，병여 GPS 단역원차분정위、재파상위실시차분정위기술감측결과진행료대비。결과표명：GPS PPP기술감측결과적내부합정도약위10 mm，외부합정도약위40 mm，차GPS PPP기술구유일사차분GPS무법비의적우세，여무수기준참지지、작업성본저、효솔고、가직접획취감측점재국제지구삼고광가하적절대좌표등。해기술완전가용우활파등지질재해적실시동태감측화예경。
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.