CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset

This dataset contains 332 CPT-based liquefaction case histories from 25 globally distributed earthquakes. These data, or subsets of these data, have been analyzed in the literature and are provided here to replicate published results. These cases are sourced from existing studies, to include observations of manifestation severity, CPT soundings, and estimation of GWT depth and ground-motion IMs, as generally reported by original investigators. When available, recent refinements were adopted from the literature. Of the 332 global cases, ~55% are “Manifestation” and ~45% are “No Manifestation.” The compiled, post-processed data is presented in a structure array (a single file), allowing researchers to easily access and analyze information pertinent to free-field liquefaction response (i.e., triggering and surface manifestation). Research opportunities using this data include, but are not limited to, the training or testing of new and existing liquefaction-prediction models. Information describing the contents and structure of the case-history data are provided in a ReadME document.

Note: This database substantially augments, and thus supersedes, that of Geyin and Maurer (2021).

Geyin, M., B. Maurer (2021). "CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset (Version 1)", in CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset (Version 1). DesignSafe-CI. https://doi.org/10.17603/ds2-wftt-mv37

本数据集包含来自全球25次地震的332份基于圆锥贯入试验（Cone Penetration Test，CPT）的砂土液化案例历史数据。这些数据及其子集已在相关学术文献中开展过分析，本次发布旨在复现已发表的研究结果。本批案例源自已有研究成果，涵盖液化显现烈度观测、圆锥贯入试验探测数据，以及由原始研究者通常报告的地下水位（Groundwater Table，GWT）深度与地震动强度参数（Intensity Measures，IMs）估算结果。若有可用资料，本次编译还采纳了文献中最新的修正方法。

在全部332份全球案例中，约55%为「已显现液化」案例，约45%为「未显现液化」案例。经过编译与后处理的数据集以结构数组（structure array）格式存储于单个文件中，方便研究人员快速获取并分析与自由场砂土液化响应（即液化触发与地表显现）相关的各类信息。基于本数据集的研究方向包括但不限于：训练或测试新型及已有液化预测模型。案例历史数据的内容与结构说明详见自述文档（ReadME）。

注：本数据库大幅扩充并替代了Geyin与Maurer（2021）发布的数据集。

Geyin, M., B. Maurer (2021). "CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset (Version 1)", in CPT-Based Liquefaction Case Histories from Global Earthquakes: A Digital Dataset (Version 1). DesignSafe-CI. https://doi.org/10.17603/ds2-wftt-mv37