Stability Analysis and Parameter Optimization of Deep Excavation Supporting System in Granular Soils
Joint Authors
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-08-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Deep excavations are prone to result in excessive ground surface settlement displacement of surrounding existing structures, which could cause severe economic damage, even casualties.
Hence, the optimization of pile parameters and evaluation of the stability of the excavation are of paramount importance.
This paper aims to evaluate the security of deep excavation and optimize the parameters of supported piles in granular soils.
An excavation case in granular soils is used to evaluate the stability of deep excavation using displacement least squares method.
The stability of case history, Changqingqiao subway station, using pile and inner support system is evaluated by using the least square method.
Subsequently, the finite element method is used to optimize the critical parameters of the supported piles, and it needs to be emphasized that the correctness and reasonability of the finite element (FE) models are evaluated according to field measurements.
The optimum pile diameter and embedment ratio for single- and double-row retaining pile are 1.0 m and 0.4.
The maximum vertical displacement of surrounding soil and horizontal displacement of piles can be calculated by the equations obtained in this research which can provide useful guidance for the designing of deep excavation.
American Psychological Association (APA)
Dong, Manman& Jia, Pengjiao. 2020. Stability Analysis and Parameter Optimization of Deep Excavation Supporting System in Granular Soils. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1124840
Modern Language Association (MLA)
Dong, Manman& Jia, Pengjiao. Stability Analysis and Parameter Optimization of Deep Excavation Supporting System in Granular Soils. Advances in Civil Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1124840
American Medical Association (AMA)
Dong, Manman& Jia, Pengjiao. Stability Analysis and Parameter Optimization of Deep Excavation Supporting System in Granular Soils. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1124840
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1124840