Estimation of soil strength parameters based on database with use of Hierarchical Bayesian Model

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Key Points

This research aims to estimate soil strength parameters critical for the design of earth structures like reservoirs.
Used a hierarchical Bayesian model to integrate generic and site-specific data.
Created a database from past borehole data to estimate effective cohesion and internal friction angle.
Compared predicted values with actual measurements to validate the accuracy of the method.
Successfully estimated effective cohesion and internal friction angle with higher accuracy compared to traditional methods.
Demonstrated practical applicability of the hierarchical Bayesian model for soil strength estimation in various sites.
Validated method accuracy through comparison with real measurement data.

Study estimates soil strength parameters in reservoirs, indicating practical application potential.

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NISHIMURA et al. (2026) studied this question.

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