Spatial Probabilistic Model of Block Failure Capacity of Piles in Clay

作     者：IndraDjati Sidi 

作者机构：Department of Civil Engineering lnstitut Teknologi Bandung Bandung 40132 Indonesia 

出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)

年 卷 期：2016年第10卷第11期

页      面：1220-1225页

学科分类：08[工学] 080203[工学-机械设计及理论] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 

主　　题：Block failure soil variability random field model error reliability index. 

摘      要：A probability based model of block failure capacity of pile foundation in clay soil under axial load is developed. The model was based on the first order second moment method. Instead of using point variability, the soil inherent variability is modelled as random field model. Based on this model, a reliability based factor of safety for designing pile group foundation, taking into account bock failure mechanism, is proposed. Furthermore, using simplified lognormal model, the relationship between the factor of safety used in design practice and target reliability may be derived explicitly.