Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis
Estimating the performance of foundations on rock mass is essential in designing buildings. Stability assessment of weathered rocks under foundation load is a complicated task if there is an internal opening within the foundation. This study applies finite element limit analysis to evaluate the bear...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/12/5/646 |
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| author | Bo Sung Kim O-il Kwon Yong Hyuk Choi Joon Kyu Lee |
| author_facet | Bo Sung Kim O-il Kwon Yong Hyuk Choi Joon Kyu Lee |
| author_sort | Bo Sung Kim |
| collection | DOAJ |
| description | Estimating the performance of foundations on rock mass is essential in designing buildings. Stability assessment of weathered rocks under foundation load is a complicated task if there is an internal opening within the foundation. This study applies finite element limit analysis to evaluate the bearing capacity of annular foundations resting on medium to highly weathered rocks following the modified Hoek–Brown rock mass. Special attention is focused on the effect of rock mass disturbance. The level and heterogeneity of rock mass disturbance are considered as constant or linearly varying disturbance factors with depth, which capture the damage level and zones due to construction and blasting. The results obtained from the analysis compare well with the existing solutions. The numerical results are presented in the familiar form of bearing capacity factors as a function of the dimensionless parameters related to foundation perforation and rock mass properties as well as the foundation-rock interface. The failure patterns of annular foundations are also investigated for a few cases with different levels of disturbance and foundation roughness. |
| first_indexed | 2024-03-10T03:13:57Z |
| format | Article |
| id | doaj.art-c1e35bd5f6ac4b9a9bbf62936642f53f |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-10T03:13:57Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-c1e35bd5f6ac4b9a9bbf62936642f53f2023-11-23T10:21:04ZengMDPI AGBuildings2075-53092022-05-0112564610.3390/buildings12050646Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit AnalysisBo Sung Kim0O-il Kwon1Yong Hyuk Choi2Joon Kyu Lee3Department of Civil Engineering, University of Seoul, Seoul 02504, KoreaDepartment of Civil Engineering, University of Seoul, Seoul 02504, KoreaDepartment of Civil Engineering, University of Seoul, Seoul 02504, KoreaDepartment of Civil Engineering, University of Seoul, Seoul 02504, KoreaEstimating the performance of foundations on rock mass is essential in designing buildings. Stability assessment of weathered rocks under foundation load is a complicated task if there is an internal opening within the foundation. This study applies finite element limit analysis to evaluate the bearing capacity of annular foundations resting on medium to highly weathered rocks following the modified Hoek–Brown rock mass. Special attention is focused on the effect of rock mass disturbance. The level and heterogeneity of rock mass disturbance are considered as constant or linearly varying disturbance factors with depth, which capture the damage level and zones due to construction and blasting. The results obtained from the analysis compare well with the existing solutions. The numerical results are presented in the familiar form of bearing capacity factors as a function of the dimensionless parameters related to foundation perforation and rock mass properties as well as the foundation-rock interface. The failure patterns of annular foundations are also investigated for a few cases with different levels of disturbance and foundation roughness.https://www.mdpi.com/2075-5309/12/5/646annular foundationbearing capacityrock masslimit analysisdisturbance |
| spellingShingle | Bo Sung Kim O-il Kwon Yong Hyuk Choi Joon Kyu Lee Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis Buildings annular foundation bearing capacity rock mass limit analysis disturbance |
| title | Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis |
| title_full | Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis |
| title_fullStr | Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis |
| title_full_unstemmed | Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis |
| title_short | Bearing Capacity of Annular Foundations on Rock Mass with Heterogeneous Disturbance by Finite Element Limit Analysis |
| title_sort | bearing capacity of annular foundations on rock mass with heterogeneous disturbance by finite element limit analysis |
| topic | annular foundation bearing capacity rock mass limit analysis disturbance |
| url | https://www.mdpi.com/2075-5309/12/5/646 |
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