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中文摘要：
文章介绍了D-InSAR技术原理,利用日本的ALOS PALSAR卫星数据,运用二轨差分方法对江苏省境内大刘煤矿采空区上方附近的大桥进行了沉陷监测,获取了2007年到2009年该大桥的沉降情况,测量结果与实测水准数据结果吻合,证明了该技术在矿山开采桥梁监测应用中的可行性。
英文摘要：
The paper introduced the principle of the D-InSAR technology.The ALOS PALSAR satellite data of Japan and the two tracking differential method were applied to the subsidence monitoring and measuring on a bridge above the mining goaf of a coal mine in Jiangsu Province.The subsidence conditions of the bridge from 2007 to 2009 were obtained.The measuring results and the actual level data results were well fitted and could show the feasibility of the technology applied to the bridge monitoring and measuring above the mining goaf.
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