CAJ | 학술논문

　　基于TerraSAR-X高分辨率SAR数据，利用时序DInSAR技术监测矿区开采沉陷，探讨其在开采沉陷监测中的定量化应用。结合矿区工作面回采进度资料，对时序DInSAR结果进行分析，提取不同开采阶段的超前影响角、边界角、起动距等参数，以认识和描述上覆岩层存在重复采动时的地表沉陷规律。利用在工作面上方角反射器位置上同步获取的GPS观测结果对DInSAR技术进行验证，结果表明X波段SAR数据可以准确监测微小形变，从而保证了开采沉陷影响范围监测及角量参数提取的可靠性。
　　기우TerraSAR-X고분변솔SAR수거，이용시서DInSAR기술감측광구개채침함，탐토기재개채침함감측중적정양화응용。결합광구공작면회채진도자료，대시서DInSAR결과진행분석，제취불동개채계단적초전영향각、변계각、기동거등삼수，이인식화묘술상복암층존재중복채동시적지표침함규률。이용재공작면상방각반사기위치상동보획취적GPS관측결과대DInSAR기술진행험증，결과표명X파단SAR수거가이준학감측미소형변，종이보증료개채침함영향범위감측급각량삼수제취적가고성。
The high resolution TerraSAR-X SAR data was used to monitor ground subsidence caused by underground coal mining activities with time-series DInSAR method. Analysis was made based on the detailed stoping records of the related working face. With the identified bounds of subsidence, some angular parameters, such as advanced influence angle, angle of subsidence and moving distance were derived. These parameters could be used to depict the evolution of ground subsidence caused by re-peated coal excavation, which is quite different compared with subsidence caused by the first mining. In the end, terrestrial GPS surveying results, which were carried out at the same date when SAR image was acquired, were used to evaluate the DInSAR technology. The results confirm the reliability and validity of X-band SAR data in terms of subsidence boundary extraction and related angular parameters deriva-tion, thus promoting the quantitative application of DInSAR technology.