Stability numbers for an unsupported vertical circular excavation in c–? soil |
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| Institution: | 1. Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou 310027, PR China;2. College of Civil Engineering and Architecture, Wenzhou University, Wenzhou 325035, PR China;1. Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Jiangsu Research Center for Geotechnical Engineering Technology, Hohai University, 1 Xikang Rd, Nanjing 210098, China;2. Survey and Design Research Institute of Jiangxi Province, 169 Zhiyang Rd., Nanchang 330095, China;3. School of Civil and Transportation Engineering, State Key laboratory of Subtropical Building Science, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China;1. Laboratory InfraRes, Mohammed Cherif Messaadia University, Souk-Ahras, Algeria;2. Department of Civil Engineering, Badji Mokhtar-Annaba University, Annaba, Algeria;3. Laboratory LMGHU, Skikda University, Skikda, Algeria;4. School of Automotive and Transportation Engineering, Hefei University of Technology, Hefei, 230009, China;5. Grenoble Alpes University, Laboratory 3SR, Grenoble, France;1. Department of Civil Engineering, Shenzhen University, Shenzhen 518060, China;2. Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai 200030, China;3. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China;4. Toyota Motors Corporation (Former NIT Student), Nagoya, Japan;5. Department of Civil Engineering, Nagoya Institute of Technology, Nagoya 466-8555, Japan;1. Tohoku University, 6-6-06, Aramaki Aza Aoba, Aoba-ku, Sendai City, 980-8579 Miyagi, Japan;2. Gifu University, 1-1 Yanagido, Gifu City, 501-1193 Gifu, Japan |
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| Abstract: | By using an axisymmetric lower bound finite element limit analysis formulation, the stability numbers (γH/c) for an unsupported vertical circular excavation in a cohesive–frictional soil have been generated. The numerical results are obtained for values of normalized excavation height (H/b) and friction angle (?) greater than those considered previously in the literature. The results compare well with those available in literature. The stability numbers presented in this note would be beneficial from a design point of view. |
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