...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Bulletin of earthquake engineering >Technical guidelines for the assessment of earthquake induced liquefaction hazard at urban scale
【24h】

Technical guidelines for the assessment of earthquake induced liquefaction hazard at urban scale

机译：地震诱导城市规模液化危害的技术指南

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Microzonation for earthquake-induced liquefaction hazard is the subdivision of a territory at a municipal or submunicipal scale in areas characterized by the same probability of liquefaction manifestation for the occurrence of an earthquake of specified intensity. The liquefaction hazard at a site depends on the severity of expected ground shaking as well as on the susceptibility to liquefaction of that site. This in turn depends on geological, geomorphological, hydrogeological and geotechnical predisposing factors. Thus, liquefaction hazard implies the existence of territories characterized by a moderate to high level of intensity of expected ground shaking. Microzonation charts for ground shaking and liquefaction hazard play a key role for the mitigation of seismic risk of an urban centre as they provide a valuable tool for the implementation of prevention strategies and land use planning. The LIQUEFACT project fully addressed the problem of microzoning a territory for earthquake-induced liquefaction hazard in a specific work package. Four municipal testing areas were selected across Europe as peculiar case studies where to construct microzonation charts for earthquake-induced liquefaction hazard. They are located in Emilia-Romagna region (Italy), Lisbon metropolitan area (Portugal), Brezice territory (Slovenia) and Marmara region (Turkey). Their location was identified based on the following criteria: severity of expected seismic hazard, availability of geological and geotechnical data, presence of liquefiable soil deposits, documented cases of liquefaction manifestations occurred in historical earthquakes, representativeness of different geological settings, density of population in selected areas (exposure). This paper illustrates the general procedure developed in LIQUEFACT for the assessment of earthquake-induced liquefaction hazard at urban scale and presents the main achievements of the microzonation studies carried out at the four previously mentioned European testbeds. Since the microzonation studies have been carried out using a shared framework and methodology, this paper has the ambition to serve as technical guidelines for updating the standards and the operational criteria currently used in different countries worldwide to construct seismic microzonation maps of liquefaction hazard.
机译：地震液化危险的微区划是在市政或次市政范围内，对一个区域进行的细分，其特点是在特定强度的地震发生时，液化表现的概率相同。场地的液化危险取决于预期地面震动的严重程度以及该场地的液化敏感性。这又取决于地质、地貌、水文地质和岩土工程诱发因素。因此，液化危险意味着存在以中等至高强度预期地面震动为特征的区域。地面震动和液化危险的微区划图对减轻城市中心的地震风险起着关键作用，因为它们为实施预防战略和土地利用规划提供了宝贵的工具。液化项目在一个具体的工作包中充分解决了将一个地区划分为地震液化危险区的问题。在欧洲各地选择了四个市政试验区作为特殊案例研究，在其中构建地震诱发液化危险的微区划图。他们位于埃米利亚-罗马尼亚地区（意大利）、里斯本都市区（葡萄牙）、布雷齐斯地区（斯洛文尼亚）和马尔马拉地区（土耳其）。根据以下标准确定其位置：预期地震灾害的严重性、地质和岩土数据的可用性、可液化土壤沉积物的存在、历史地震中发生液化现象的记录案例、不同地质环境的代表性、选定区域的人口密度（暴露）。本文阐述了液化研究所开发的城市地震液化危险性评估的一般程序，并介绍了在上述四个欧洲试验台上进行的微区划研究的主要成果。由于微区划研究是使用一个共享的框架和方法进行的，因此本文旨在作为更新标准和操作标准的技术指南，这些标准和操作标准目前在全球不同国家用于构建液化危险的地震微区划图。

著录项

  • 来源
    《Bulletin of earthquake engineering》 |2021年第10期|共45页
  • 作者

    Lai C. G.; Bozzoni F.; Conca D.; Fama A.; Ozcebe A. G.; Zuccolo E.; Meisina C.; Boni R.; Bordoni M.; Cosentini R. M.; Martelli L.; Poggi V.; Viana da Fonseca A.; Ferreira C.; Rios S.; Cordeiro D.; Ramos C.; Molina-Gomez F.; Coelho C.; Logar J.; Macek M.; Oblak A.; Ozcep F.; Bozbey I.; Oztoprak S.; Sargin S.; Aysal N.; Oser C.; Kelesoglu M. K.;

  • 作者单位

    Univ Pavia Dept Civil &

    Architectural Engn Pavia Italy;

    European Ctr Training &

    Res Earthquake Engn Euctr Pavia Italy;

    Univ Pavia Dept Civil &

    Architectural Engn Pavia Italy;

    Univ Pavia Dept Civil &

    Architectural Engn Pavia Italy;

    Univ Pavia Dept Civil &

    Architectural Engn Pavia Italy;

    Univ Pavia Dept Civil &

    Architectural Engn Pavia Italy;

    Univ Pavia Dept Earth &

    Environm Sci Pavia Italy;

    Univ Pavia Dept Earth &

    Environm Sci Pavia Italy;

    Univ Pavia Dept Earth &

    Environm Sci Pavia Italy;

    Politecn Torino Dept Struct Bldg &

    Geotech Engn Turin Italy;

    Geol Seism &

    Soil Survey Bologna Emilia Romagna Italy;

    Natl Inst Oceanog &

    Appl Geophys OGS Trieste Italy;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto CONSTRUCT GEO Fac Engn Porto Portugal;

    Univ Porto Fac Sci Porto Portugal;

    Univ Ljubljana Fac Civil &

    Geodet Engn Ljubljana Slovenia;

    Univ Ljubljana Fac Civil &

    Geodet Engn Ljubljana Slovenia;

    Univ Ljubljana Fac Civil &

    Geodet Engn Ljubljana Slovenia;

    Istanbul Univ Cerrahpasa Dept Geophys Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Civil Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Civil Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Civil Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Geol Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Civil Engn Istanbul Turkey;

    Istanbul Univ Cerrahpasa Dept Civil Engn Istanbul Turkey;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地震学;
  • 关键词

    Liquefaction; Earthquake; Microzonation; Guidelines; LIQUEFACT project;

    机译：液化;地震;微微响应;指导方针;液化项目;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号