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首页> 美国卫生研究院文献>Elsevier Sponsored Documents >Analysis of building deformation in landslide area using multisensor PSInSAR™ technique
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Analysis of building deformation in landslide area using multisensor PSInSAR™ technique

机译：使用多传感器PSInSAR™技术分析滑坡地区的建筑物变形

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Buildings are sensitive to movements caused by ground deformation. The mapping both of spatial and temporal distribution, and of the degree of building damages represents a useful tool in order to understand the landslide evolution, magnitude and stress distribution. The high spatial resolution of space-borne SAR interferometry can be used to monitor displacements related to building deformations. In particular, PSInSAR technique is used to map and monitor ground deformation with millimeter accuracy. The usefulness of the above mentioned methods was evaluated in San Fratello municipality (Sicily, Italy), which was historically affected by landslides: the most recent one occurred on 14th February 2010. PSInSAR data collected by ERS 1/2, ENVISAT, RADARSAT-1 were used to study the building deformation velocities before the 2010 landslide. The X-band sensors COSMO-SkyMed and TerraSAR-X were used in order to monitor the building deformation after this event. During 2013, after accurate field inspection on buildings and structures, damage assessment map of San Fratello were created and then compared to the building deformation velocity maps. The most interesting results were obtained by the comparison between the building deformation velocity map obtained through COSMO-SkyMed and the damage assessment map. This approach can be profitably used by local and Civil Protection Authorities to manage the post-event phase and evaluate the residual risks.
机译：建筑物对地面变形引起的运动很敏感。空间和时间分布图以及建筑物破坏程度的映射图是一种有用的工具，可用于了解滑坡的演变，强度和应力分布。星载SAR干涉术的高空间分辨率可用于监视与建筑物变形有关的位移。特别是，PSInSAR技术用于以毫米精度绘制和监视地面变形。在历史上受滑坡影响的圣弗拉特洛市（意大利西西里岛），评估了上述方法的有效性：最近一次发生在2010年2月14日。ERS 1/2，ENVISAT，RADARSAT-1收集的PSInSAR数据用来研究2010年滑坡之前的建筑物变形速度。 X波段传感器COSMO-SkyMed和TerraSAR-X用于监视此事件后的建筑物变形。 2013年期间，在对建筑物和结构进行了精确的现场检查之后，创建了San Fratello的破坏评估图，然后将其与建筑物变形速度图进行比较。通过比较通过COSMO-SkyMed获得的建筑物变形速度图和破坏评估图，可以获得最有趣的结果。地方和民防部门可以利用这种方法来管理事后阶段并评估残留风险。

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