A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Estimation of Pullout Shear Strength of Grouted Soil Nails
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.
Estimation of Pullout Shear Strength of Grouted Soil Nails
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.
Estimation of Pullout Shear Strength of Grouted Soil Nails
Zhou, Wan-Huan (author) / Yin, Zhen-Yu (author) / Yuen, Ka-Veng (author)
Practice of Bayesian Probability Theory in Geotechnical Engineering ; Chapter: 8 ; 195-213
2020-11-14
19 pages
Article/Chapter (Book)
Electronic Resource
English
Evaluations of Pullout Resistance of Grouted Soil Nails
| ASCE | 2009
Evaluations of Pullout Resistance of Grouted Soil Nails
| British Library Conference Proceedings | 2009