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Abstract
Geotechnical design codes have been migrating from the traditional allowable stress design towards load and resistance factor design (LRFD). In this paper, calibration of the geotechnical resistance factors for sliding and overturning limit states of gravity retaining walls is performed using a reliabilitybased method. For each limit state, the LRFD approach is applied to design the gravity retaining wall, and its probability of failure is estimated using the Random Finite Element Method (RFEM). An example gravity retaining wall is analyzed using the described methodology, and the results suggest that for a given resistance factor the sliding failure probability is greater than the overturning failure probability, and a positive correlation between the soil effective internal frictional angle and unit weight random fields significantly reduces the failure probability. For reasonable ranges of the target maximum lifetime failure probability, the required resistance factor for the sliding limit state is close to that for the overturning limit state. In addition, the sliding resistance factor given by the Canadian Highway Bridge Design Code seems slightly unconservative, while the recommended overturning resistance factor is slightly conservative. The current analysis can be used to guide the calibration of these geotechnical resistance factors used in design codes.
Original language  English 

Number of pages  9 
Journal  Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards 
Early online date  2 Jun 2022 
DOIs  
Publication status  Epub ahead of print  2 Jun 2022 
Keywords
 gravity retaining wall
 overturning failure mode
 Reliability analysis
 resistance factor
 sliding failure mode
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Dive into the research topics of 'Calibration of resistance factors for gravity retaining walls'. Together they form a unique fingerprint.Activities
 2 Oral presentation

Calibration of Resistance Factors for Design of Geotechnical Systems
Pengpeng He (Speaker)
2 Nov 2022Activity: Talk or presentation types › Oral presentation

Calibration of resistance factors for design of geotechnical systems
Pengpeng He (Speaker)
28 Oct 2022Activity: Talk or presentation types › Oral presentation