Paleoliquefaction mapping for Bangladesh from the records of historical earthquakes

IF 3.7 2区工程技术 Q3 ENGINEERING, ENVIRONMENTAL

Bulletin of Engineering Geology and the Environment Pub Date : 2025-05-10 DOI:10.1007/s10064-025-04316-w

Tasnim Jabin Jui, Md. Shakhawat Hossain, A. S. M. Maksud Kamal, Md. Zillur Rahman, Masaba Tasneem Sahebi, Abrar Hossain

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引用次数: 0

Abstract

Paleoliquefaction investigations are crucial for assessing seismic hazard potential and identifying regions susceptible to liquefaction, which is essential for seismic risk-sensitive land-use planning. This research aimed to identify paleoliquefaction sites by reviewing documented descriptions of the damages and ground deformations in Bangladesh during three significant historical earthquakes: the Bengal Earthquake (1885), the Great Assam Earthquake (1897), and the Srimangal Earthquake (1918). A paleoliquefaction map for Bangladesh was generated, locating the paleoliquefaction sites during these three major historical earthquakes. In addition, Standard Penetration Test (SPT) blow count and Down-hole Seismic Tests (DST) were conducted at selected locations to assess the Liquefaction Potential Index (LPI) by using deterministic (simplified) and probabilistic procedures. The results confirmed a high likelihood of liquefaction during future large-magnitude earthquakes. The research outcome will help to distinguish and characterize Bangladesh’s susceptible regions to soil liquefaction during potential earthquakes in the future and is recommended for consideration in large-scale construction or development plans.

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从历史地震记录看孟加拉的古液化图

古液化调查对于评估地震潜在危害和确定易液化区域至关重要，这对地震风险敏感的土地利用规划至关重要。本研究旨在通过回顾孟加拉地震（1885年）、阿萨姆大地震（1897年）和斯里曼加尔地震（1918年）三次重大历史地震期间对孟加拉国破坏和地面变形的文献描述，确定古液化遗址。生成了孟加拉国的古液化地图，确定了这三次历史大地震期间的古液化地点。此外，在选定的地点进行标准穿透试验（SPT）吹击计数和井下地震试验（DST），通过确定性（简化）和概率程序评估液化潜力指数（LPI）。结果证实了在未来的大地震中液化的可能性很高。研究结果将有助于区分和描述孟加拉国在未来潜在地震期间易受土壤液化影响的地区，并建议在大规模建设或发展计划中予以考虑。

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来源期刊

Bulletin of Engineering Geology and the Environment 工程技术-地球科学综合

CiteScore

7.10

自引率

11.90%

发文量

445

审稿时长

4.1 months

期刊介绍： Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces: • the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations; • the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change; • the assessment of the mechanical and hydrological behaviour of soil and rock masses; • the prediction of changes to the above properties with time; • the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.