Geotechnical Engineering Journal of the SEAGS & AGSSEA ISSN 0046-5828
Vol. 53 No. 1 March 2022
Analysing Allowable Horizontal Displacements of Retaining Wall Based on Limited Settlements of Adjacent Building
Quoc Thien Huynh, Huu Thoi Tra, Lindung Zalbuin Mase, Nhat Hoang Vo, and Van Qui Lai
ABSTRACT: This paper proposed and validated allowable horizontal displacements of retaining wall based on limited settlements of adjacent building with shallow foundation. The Finite Element Analysis (FEA) by Hardening Soil (HS) model was employed to verify horizontal displacements of retaining wall (δmax) and settlements of adjacent building (Uy) from seven well-documented excavation cases in Ho Chi Minh (HCM) city, Vietnam. Following the comparisons between the FEA results and field observations, a close correlation between δmax/H and Uy was proposed to δmax/H = -αUy, in which α was unit coefficient varying according to excavation depth H(m). Another case of deep excavation in Ha Noi city, Vietnam was used as a practical application to confirm the obtained results.
KEYWORDS: Deep excavation, Adjacent building, Limited settlement, Allowable displacement.
