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Comparison of building damage assessment methods for risk analysis in mining subsidence regions

机译:采煤沉陷区建筑损伤评估方法的风险分析比较

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摘要

The occurrence of subsidence phenomena in urban regions may induce small to severe damage to buildings. Many methods are provided in the literature to assess buildings damage. Most of these methods are empirical and use the horizontal ground strain as a subsidence intensity in the vicinity of a building. Application and comparison of these methods with a case study is the main objective of this paper. This comparison requires some harmonization of the existing methods and the development of a software, which combines the subsidence hazard prediction, the damage evaluation methods and a database of buildings with structural parameters as well as the geographical coordinates of the buildings An additional results is the development of a method for the prediction of the horizontal ground strain in the vicinity of each building. Results are given as a map of damaged buildings for the case study and the different existing methods with some statistical calculations such as the mean and the standard deviation of damage in the city. Comparison of these results allows identification of the “safer” method that give the higher mean of damage. The comparison of the calculated results and observed damage in Lorrain region show that, the Dzegeniuk et al. methods is more realistic in comparison of the other empirical methods.
机译:城市地区沉陷现象的发生可能对建筑物造成小到严重的破坏。文献中提供了许多评估建筑物损坏的方法。这些方法大多数都是经验性的,并使用水平地面应变作为建筑物附近的沉降强度。这些方法的应用和案例研究的比较是本文的主要目的。这种比较需要协调现有方法并开发软件,该软件将沉陷危险预测,破坏评估方法和具有结构参数以及建筑物地理坐标的建筑物数据库结合在一起。预测每栋建筑物附近水平地面应变的方法。给出的结果将作为案例研究和不同现有方法的受损建筑物地图,并进行一些统计计算,例如城市中受损的平均值和标准差。将这些结果进行比较可以确定“安全”的方法,该方法可以提供更高的平均损坏率。比较计算结果和观察到的洛林地区的破坏情况表明,Dzegeniuk等人。与其他经验方法相比,这些方法更为现实。

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