A Deterministic Method for Evaluating Safety Factor of Deep Excavation Stability against Groundwater Inrush Equivalently Considering Soil Uncertainty

Lihua Pei, Sheng Zhang (), Youbin Yang and Dong Lin
Additional contact information
Lihua Pei: China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China
Sheng Zhang: School of Civil and Hydraulic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
Youbin Yang: China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China
Dong Lin: China Railway Siyuan Survey and Design Group Co., Ltd., Wuhan 430063, China

Sustainability, 2022, vol. 15, issue 1, 1-14

Abstract: In current design specifications for deep excavation, the determination of safety factors against groundwater inrush only considers the self-weight effect of soil mass at the bottom. However, the shear strength and its spatial variability in a cement-solidified bottom layer also plays an important role in safety factor estimation. Based on that, in this study, the strength reduction method was introduced into reliability analysis of deep excavation engineering, and the influence of shear strength and its spatial variability of cement-solidified soil on the stability of deep excavation is studied. Furthermore, a deterministic analysis method that can equivalently consider soil uncertainty is proposed and verified.

Keywords: deep excavation; safety factor; spatial variability; passive zone improvement (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/15/1/748/pdf (application/pdf)
https://www.mdpi.com/2071-1050/15/1/748/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:15:y:2022:i:1:p:748-:d:1021550

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().