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Название: Determining the peat soil dynamic properties using geophysical methods // Magazine of Civil Engineering. – 2021. – № 5 (105). — С. 10508
Авторы: Basri K.; Zainorabidin A.; Mohamad H. M.; Musta B.
Выходные сведения: 2021
Коллекция: Общая коллекция
Тематика: Строительство; Основания и фундаменты; soils; peat soils; dynamic properties of soils; determination of dynamic properties of soils; geophysical method; fundamental parameters; грунты; торфяные грунты; динамические свойства грунтов; определение динамических свойств грунтов; геофизические методы; фундаментальные параметры
УДК: 624.1
ББК: 38.58
Тип документа: Статья, доклад
Тип файла: PDF
Язык: Английский
DOI: 10.34910/MCE.105.8
Права доступа: Свободный доступ из сети Интернет (чтение, печать, копирование)
Ключ записи: ru\spstu\analitstest\28005

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The small strain dynamic properties of peat soil are a fundamental parameter related to the mechanical behaviour of a structure constructed on peat ground. These parameters are used in evaluation of the dynamic behaviour and seismic design in geotechnical structures. Determination of dynamic properties of peat soil is often done using laboratory-based tests that risk overestimation and underestimation due to sample disturbance. Since geophysical methods are proven to be able to obtain small strain dynamic properties with similar magnitude as the laboratory tests, it has become popular and is increasingly used in practice. Two geophysical methods known as multichannel analysis of surface waves (MASW) and seismic refraction were performed in this study to estimate the small strain maximum shear modulus (G[max]) and maximum elastic modulus (E[max]). The results showed the value of Gmax and Emax were ranging from 1.01 to 6.83 MPa and from 3.88 to 10.9 MPa respectively. Correlations were also established to assist in estimating G[max] and E[max] on peat soil with bulk density. There appears to be a particularly good link between the G[max], E[max] and bulk density. Overall, the small strain dynamic properties determined shows significant increment with depth which could be governed primarily by the effective stress. Other parameters such as water content, bulk density, organic content and degree of decomposition also could significantly influence the dynamic properties of peat soil.

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  • Determining the peat soil dynamic properties using geophysical methods
    • 1. Introduction
    • 2. Methods
      • 2.1. Overview of Sabah’s peat soil
      • 2.2. Field survey
    • 3. Results and Discussion
      • 3.1. Multichannel Analysis of Surface Waves (MASW)
      • 3.2. Seismic refraction
      • 3.3. Comparison between Vs and Vp values
      • 3.4. Maximum shear modulus (Gmax) and maximum elastic modulus (Emax)
    • 4. Conclusions
    • 5. Acknowledgments

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