Stochastic collocation enhanced radial-circumferential importance sampling method for efficiently estimating rare failure probability with high-dimensional inputs and its application in slope structures

Key Points

• Efficiently estimates rare failure probability using an enhanced stochastic collocation method, leading to more accurate assessments.
• Incorporating high-dimensional inputs significantly improves estimation accuracy, enabling better predictions of failure risks.
• The approach utilizes a radial-circumferential importance sampling technique, which aids in handling complex input data effectively.
• This new method may enable better risk assessments for slope structures, highlighting the importance of accurate failure probability evaluation.