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2021 | OriginalPaper | Buchkapitel

8. Estimation of Pullout Shear Strength of Grouted Soil Nails

verfasst von : Wan-Huan Zhou, Zhen-Yu Yin, Ka-Veng Yuen

Erschienen in: Practice of Bayesian Probability Theory in Geotechnical Engineering

Verlag: Springer Singapore

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Abstract

Pullout shear resistance of grouted soil nails is affected by many factors, such as overburden pressure, grouting pressure, soil dilation and degree of saturation of soil. Due to the complexity of pullout mechanism, these factors have not been well incorporated in current design methods. In this chapter, Bayesian analysis is performed to investigate the relative importance of several key factors and to build a new design formula to estimate maximum pullout shear stress of grouted soil nails. By using a series of laboratory soil nail pullout test data, Bayesian inference is performed to select the predictive formula with suitable complexity and to identify its parameters. It has been found that the most important factors are the degree of saturation and the product of grouting pressure and overburden pressure. It is shown that the proposed optimal model exhibits significantly stronger correlation with the measurements than the existing effective stress method for the laboratory and field tests.

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Vorheriges Kapitel Parametric Identification of Advanced Soil Models for Sand

Nächstes Kapitel Selection of Physical and Chemical Properties of Natural Fibers for Predicting Soil Reinforcement

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Titel: Estimation of Pullout Shear Strength of Grouted Soil Nails
verfasst von: Wan-Huan Zhou
Zhen-Yu Yin
Ka-Veng Yuen
Verlag: Springer Singapore
Buch: Practice of Bayesian Probability Theory in Geotechnical Engineering
Print ISBN: 978-981-15-9104-4

Electronic ISBN: 978-981-15-9105-1

Copyright-Jahr: 2021
DOI: https://doi.org/10.1007/978-981-15-9105-1_8

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