STUDYING THE BEHAVIOUR OF DEEP EXCAVATION ADJACENT TO OLD BUILDINGS USING PLAXIS 3D | ||
| Journal of the Egyptian Society of Engineers | ||
| Article 12, Volume 58, Issue 1, April 2019, Pages 20-15 PDF (1.04 M) | ||
| Document Type: Scientific and technological | ||
| Author | ||
| ASMAA M HASSAN* | ||
| Teaching Assistant, Faculty of Regional and Urban Planning, Environmental Planning Dept., Cairo University, Giza, Egypt. | ||
| Abstract | ||
| Due to space limitations in urban areas, a challenging trend to go deeper into the ground, and increase the space required for providing basements, car parking and for utilities etc. Major concern for projects involving deep excavation is the impact of construction related ground movements on nearby structures. This paper studying a case history in Chicago Avenue and State Street Subway Renovation Project in Chicago. A monitoring system was performed during excavation in all the surrounding buildings for the excavation using deformation gauges and settlement points. In this paper, 3D Finite element model is developed using PLAXIS-3D to represent the effect of excavation stages on the wall deformation and settlement below adjacent structure. The analysis is carried out considering non-linear behavior of soil using Hardening soil Model. Results of the models are compared with the real field investigations. In general, better lateral wall movement and ground surface settlement are obtained from the model. Computer simulation technique was an effective method to analyze the influence of pit excavation on the adjacent structures. | ||
| Keywords | ||
| Strutted excavation; settlement; wall deformation; building response; 3-D Simulation Analysis; Hardening Soil Model | ||
| References | ||
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1-W.H. Huang, “Application of wireless adhoc network in monitoring of steel support stress: case study on construction of deep foundation pit of Guangxi University metro station”, Tunnel Construction, Vol. 32, No. 4, 2012, pp. 561-565.
2-Z.C. Cheng, J.P. Miao, “Research on displacement and stresses of soldier pile structure in foundation pit of metro station in Chengdu”, Tunnel Construction, Vol. 32, No. 3, 2012, pp. 309-314. Plaxis, (2006), “Reference Manual”, Delft University of Technology and Plaxis B.V., The Netherlands.
3-Plaxis, (2006), “Reference Manual”, Delft University of Technology and Plaxis B.V., The Netherlands.
4-Wong.L.W., Lin.H, Patron.B.C., (1993) “ Design Of Diaphragm Walls For TRTS Deep Excavation”, Vol.B,pp.318-328, Taipei.
5-Mohammad S. Pakbaz, S. Imanzadeh, K.H. Bagherinia, Tunneling and Underground Space Technology 35 (2013), “Characteristics Of Diaphragm Wall Lateral Deformations And Ground Surface Settlements: Case Study In Iran-Ahwaz Metro”, Department of Civil Engineering, Shahid Chamran University, Ahwaz, Iran. | ||
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