The Next-Generation Liquefaction (NGL) project is a multi-year community-based research effort with the main goal of developing improved empirical procedures to evaluate liquefaction susceptibility, triggering, and consequences. The NGL project consists of three components (1) an open-source, global case-history database, (2) supporting studies aiming to capture specific effects not constrained by empirical data, and (3) model development. This study describes the structure of the NGL case-history database and its main characteristics. A functional beta-version of the current release of the database is accessible via a web interface at http://www.uclageo.com/NGL/ (last accessed 01/24/2018). The NGL case-history database is developed as a formal relational database using the My Structured Query Language (MySQL) management system. The NGL database comprises three main sections: (1) site, (2) earthquake event, and (3) post-earthquake observation. In NGL, a case-history is defined as the intersection among the three. The NGL database utilizes the Environmental Systems Research Institute (ESRI) Arc Geographic Information System (ArcGIS) Application Program Interface (API) and the Leaflet Javascript API to organize the data geo-spatially. As such, it provides invaluable visualization tools to analyze spatial distribution of recorded ground motions, site investigations, and observations. It also provides plotting tools to visualize geotechnical/geophysical in-situ investigations, laboratory tests, and post-earthquake observations (by means of photos, written descriptions, displacement vectors, LiDAR, satellite observations, etc.). These graphical tools are especially valuable to analyze liquefaction occurrence in urban areas. The database currently hosts several case-histories from Christchurch (New Zealand) following the 2010-2011 Canterbury earthquake sequence and from the greater Tokyo area (Japan) following the 2011 Tohoku-Oki earthquake. In both cases, high-quality post-earthquake liquefaction observations, along with field investigations and laboratory tests, are available. These earthquake events, are excellent examples on how the NGL database can provide the opportunity to greatly expand the number and quality of liquefaction case-histories globally.

NGL: an open source global database for next-generation of liquefaction assessment

Zimmaro P.
;
2018

Abstract

The Next-Generation Liquefaction (NGL) project is a multi-year community-based research effort with the main goal of developing improved empirical procedures to evaluate liquefaction susceptibility, triggering, and consequences. The NGL project consists of three components (1) an open-source, global case-history database, (2) supporting studies aiming to capture specific effects not constrained by empirical data, and (3) model development. This study describes the structure of the NGL case-history database and its main characteristics. A functional beta-version of the current release of the database is accessible via a web interface at http://www.uclageo.com/NGL/ (last accessed 01/24/2018). The NGL case-history database is developed as a formal relational database using the My Structured Query Language (MySQL) management system. The NGL database comprises three main sections: (1) site, (2) earthquake event, and (3) post-earthquake observation. In NGL, a case-history is defined as the intersection among the three. The NGL database utilizes the Environmental Systems Research Institute (ESRI) Arc Geographic Information System (ArcGIS) Application Program Interface (API) and the Leaflet Javascript API to organize the data geo-spatially. As such, it provides invaluable visualization tools to analyze spatial distribution of recorded ground motions, site investigations, and observations. It also provides plotting tools to visualize geotechnical/geophysical in-situ investigations, laboratory tests, and post-earthquake observations (by means of photos, written descriptions, displacement vectors, LiDAR, satellite observations, etc.). These graphical tools are especially valuable to analyze liquefaction occurrence in urban areas. The database currently hosts several case-histories from Christchurch (New Zealand) following the 2010-2011 Canterbury earthquake sequence and from the greater Tokyo area (Japan) following the 2011 Tohoku-Oki earthquake. In both cases, high-quality post-earthquake liquefaction observations, along with field investigations and laboratory tests, are available. These earthquake events, are excellent examples on how the NGL database can provide the opportunity to greatly expand the number and quality of liquefaction case-histories globally.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11770/307451
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