Undrained seismic bearing capacity of strip footing adjacent to a heterogeneous excavation  

作　　者：Ramin VALI Saeed KHOSRAVI Majid BEYGI 

机构地区：[1]Department of Civil Engineering,Technical and Vocational University,Tehran 1435761137,Iran [2]Department of Mining Engineering,Shahid Bahonar University of Kerman,Kerman 7616913439,Iran [3]Department of Civil Engineering,Yazd University,Yazd 8915818411,Iran

出　　处：《Frontiers of Structural and Civil Engineering》2023年第4期566-583,共18页结构与土木工程前沿（英文版）

摘　　要：The analysis of the bearing capacity of strip footings sited near an excavation is critical in geotechnics.In this study,the effects of the geometrical features of the excavation and the soil strength properties on the seismic bearing capacity of a strip footing resting on an excavation were evaluated using the lower and upper bounds of the finite element limit analysis method.The effects of the setback distance ratio(L/B),excavation height ratio(H/B),soil strength heterogeneity(kB/cu),and horizontal earthquake coefficient(kh)were analyzed.Design charts and tables were produced to clarify the relationship between the undrained seismic bearing capacity and the selected parameters.

关 键 词：EXCAVATION finite element limit analysis heterogeneous soil strip footing undrained bearing capacity 

分 类 号：TU352.11[建筑科学—结构工程]