Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bearing Capacity of Strip Footing on Hoek–Brown Rock Slopes with an Underground Circular Void by Lower Bound Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3376-0527
https://orcid.org/http://orcid.org/0000-0002-8951-9233
https://orcid.org/http://orcid.org/0000-0002-6096-8334
https://orcid.org/http://orcid.org/0000-0002-8069-5257
https://orcid.org/https://orcid.org/0000-0002-0344-2707
A series of lower-bound adaptive finite element limit analyses (LB-AFELA) was performed to compute the ultimate bearing capacity of a rigid rough strip footing situated on the crest of a rock slope with an underground circular void. The generalized Hoek–Brown criterion was utilized. The results were presented using a dimensionless bearing capacity factor (Nσ), considering various void locations, rock slope strength properties, and slope angles. Furthermore, an in-depth investigation was carried out to evaluate the formation of the failure patterns beneath the strip footing on the rock slope, considering an underground circular void. A comparison was made to assess the precision of the obtained results for a rigid rough strip footing at the edge of the rock slope between the LB-AFELA and stress characteristics method. The results showed that as the circular void moved further away from the strip footing, the Nσ, increased until the influence of the circular void faded. The interaction between the strip footing, rock slope, and the circular void resulted in a combined failure mechanism involving roof and bearing capacity failure.
Bearing Capacity of Strip Footing on Hoek–Brown Rock Slopes with an Underground Circular Void by Lower Bound Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3376-0527
https://orcid.org/http://orcid.org/0000-0002-8951-9233
https://orcid.org/http://orcid.org/0000-0002-6096-8334
https://orcid.org/http://orcid.org/0000-0002-8069-5257
https://orcid.org/https://orcid.org/0000-0002-0344-2707
A series of lower-bound adaptive finite element limit analyses (LB-AFELA) was performed to compute the ultimate bearing capacity of a rigid rough strip footing situated on the crest of a rock slope with an underground circular void. The generalized Hoek–Brown criterion was utilized. The results were presented using a dimensionless bearing capacity factor (Nσ), considering various void locations, rock slope strength properties, and slope angles. Furthermore, an in-depth investigation was carried out to evaluate the formation of the failure patterns beneath the strip footing on the rock slope, considering an underground circular void. A comparison was made to assess the precision of the obtained results for a rigid rough strip footing at the edge of the rock slope between the LB-AFELA and stress characteristics method. The results showed that as the circular void moved further away from the strip footing, the Nσ, increased until the influence of the circular void faded. The interaction between the strip footing, rock slope, and the circular void resulted in a combined failure mechanism involving roof and bearing capacity failure.
Bearing Capacity of Strip Footing on Hoek–Brown Rock Slopes with an Underground Circular Void by Lower Bound Limit Analysis
https://orcid.org/http://orcid.org/0000-0003-3376-0527
https://orcid.org/http://orcid.org/0000-0002-8951-9233
https://orcid.org/http://orcid.org/0000-0002-6096-8334
https://orcid.org/http://orcid.org/0000-0002-8069-5257
https://orcid.org/https://orcid.org/0000-0002-0344-2707
A series of lower-bound adaptive finite element limit analyses (LB-AFELA) was performed to compute the ultimate bearing capacity of a rigid rough strip footing situated on the crest of a rock slope with an underground circular void. The generalized Hoek–Brown criterion was utilized. The results were presented using a dimensionless bearing capacity factor (Nσ), considering various void locations, rock slope strength properties, and slope angles. Furthermore, an in-depth investigation was carried out to evaluate the formation of the failure patterns beneath the strip footing on the rock slope, considering an underground circular void. A comparison was made to assess the precision of the obtained results for a rigid rough strip footing at the edge of the rock slope between the LB-AFELA and stress characteristics method. The results showed that as the circular void moved further away from the strip footing, the Nσ, increased until the influence of the circular void faded. The interaction between the strip footing, rock slope, and the circular void resulted in a combined failure mechanism involving roof and bearing capacity failure.
Bearing Capacity of Strip Footing on Hoek–Brown Rock Slopes with an Underground Circular Void by Lower Bound Limit Analysis
Transp. Infrastruct. Geotech.
Shirazizadeh, Shabnam (Autor:in) / Keshavarz, Amin (Autor:in) / Beygi, Majid (Autor:in) / Vali, Ramin (Autor:in) / Saberian, Mohammad (Autor:in) / Li, Jie (Autor:in) / Ren, Gang (Autor:in)
01.01.2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch