A one-dimensional integral approach to calculating the failure probability of geotechnical engineering structures. (October 2017)

• Record Type: Journal Article
• Authors: Su, Yonghua; Fang, Yanbing; Li, Shuai; Su, Ya; Li, Xiang
• Is Part Of: Computers and geotechnics. Volume 90(2017)
• Page Start: 85
• Page End: 95
• Publication Date: 2017-10
• Subjects: Geotechnical engineering reliability -- Implicit or unknown performance function -- One-dimensional integral -- Gaussian sampling -- Maximum entropy principle; Engineering geology -- Data processing -- Periodicals; Soil mechanics -- Data processing -- Periodicals; Rock mechanics -- Data processing -- Periodicals; 624.1510285
• DOI: 10.1016/j.compgeo.2017.05.019
• Languages: English
• ISSNs: 0266-352X

Abstract

Abstract: This study focuses on the geotechnical engineering structures with implicit or unknown expressions of performance functions. A one-dimensional integral approach (ODIA) consisting of sampling, evaluation of statistical moments for multivariable functions, probability density function fitting, and simple integration of failure probability was developed through system integration. A convergence study of an illustrative example was conducted, and the error analysis revealed that the accuracy of ODIA is equivalent to that of the second-order reliability method. Applications of ODIA to a slope and surrounding rock of an excavation were presented to further confirm the accuracy, efficiency, and practicability of the approach.