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Soil Arching and Its Effect on Contiguous Pile Wall Subjected to Staged Excavation: Physical and Numerical Investigations
https://orcid.org/http://orcid.org/0000-0002-4971-2303
https://orcid.org/http://orcid.org/0000-0002-4934-4598
https://orcid.org/http://orcid.org/0000-0001-9066-9266
A contiguous pile wall system supporting deep excavation is physically and numerically modelled to understand the development of soil arching and thereby the stress reorientations in the gap between the piles. The excavation process is executed by stage-wise removal of soil in layers, simulating the field conditions. The present study highlights the force increment on piles due to the soil arching subjected to excavation. An extensive parametric study is conducted, and the variation of stress concerning numerous parameters, in particular (i) the spacing between the piles, S; (ii) depth of consideration, z; (iii) depth of excavation, h and (iv) distance of application of load from the pile wall, x are well understood. This study also contributes an analytical formulation to determine maximum stress increment due to soil arching in contiguous pile walls subjected to excavation. This study recommends incorporating the arching effects in the design guidelines.
Soil Arching and Its Effect on Contiguous Pile Wall Subjected to Staged Excavation: Physical and Numerical Investigations
https://orcid.org/http://orcid.org/0000-0002-4971-2303
https://orcid.org/http://orcid.org/0000-0002-4934-4598
https://orcid.org/http://orcid.org/0000-0001-9066-9266
A contiguous pile wall system supporting deep excavation is physically and numerically modelled to understand the development of soil arching and thereby the stress reorientations in the gap between the piles. The excavation process is executed by stage-wise removal of soil in layers, simulating the field conditions. The present study highlights the force increment on piles due to the soil arching subjected to excavation. An extensive parametric study is conducted, and the variation of stress concerning numerous parameters, in particular (i) the spacing between the piles, S; (ii) depth of consideration, z; (iii) depth of excavation, h and (iv) distance of application of load from the pile wall, x are well understood. This study also contributes an analytical formulation to determine maximum stress increment due to soil arching in contiguous pile walls subjected to excavation. This study recommends incorporating the arching effects in the design guidelines.
Soil Arching and Its Effect on Contiguous Pile Wall Subjected to Staged Excavation: Physical and Numerical Investigations
https://orcid.org/http://orcid.org/0000-0002-4971-2303
https://orcid.org/http://orcid.org/0000-0002-4934-4598
https://orcid.org/http://orcid.org/0000-0001-9066-9266
A contiguous pile wall system supporting deep excavation is physically and numerically modelled to understand the development of soil arching and thereby the stress reorientations in the gap between the piles. The excavation process is executed by stage-wise removal of soil in layers, simulating the field conditions. The present study highlights the force increment on piles due to the soil arching subjected to excavation. An extensive parametric study is conducted, and the variation of stress concerning numerous parameters, in particular (i) the spacing between the piles, S; (ii) depth of consideration, z; (iii) depth of excavation, h and (iv) distance of application of load from the pile wall, x are well understood. This study also contributes an analytical formulation to determine maximum stress increment due to soil arching in contiguous pile walls subjected to excavation. This study recommends incorporating the arching effects in the design guidelines.
Soil Arching and Its Effect on Contiguous Pile Wall Subjected to Staged Excavation: Physical and Numerical Investigations
Indian Geotech J
George, T. I. (author) / Dasaka, S. M. (author) / Daniel, A. V. (author)
Indian Geotechnical Journal ; 52 ; 610-625
2022-06-01
16 pages
Article (Journal)
Electronic Resource
English
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