Reliability Study of Excavation Safety in Underground Space of Chen Clan Academy Square

Abstract:

Chen Clan academy square reconstruction project is one of the Asian Game projects. The depth of the foundation pit of the green square is about 12.1m. The difficulties of the excavation are the protection of the ancient buildings of Chen Clan academy and the surrounding buildings and the relatively short construction period. Thus, a top-down construction method was selected as the final method. For security, reliability analyses based on Taylor series technique have been performed to the factor of safety of whole stability, stability against overturning, stability against basal heave and stability against seepage. The results show that the design of the supporting structure is generally reliable, but there are also some potential safety hazards which should be noticed. The application of Taylor series technique also shows the simplification and practicality of this method.

• Periodical: Applied Mechanics and Materials (Volumes 226-228)
• Pages: 2308-2312
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.226-228.2308
• Online since: November 2012
• Authors: Jian Pan, Jue Gao
• Keywords: Chen Clan Academy Square, Excavation Safety, Factor of Safety (FOS), Reliability, Taylor Series Technique

References

[1] T.F. Wolff: Evaluating the Reliability of Existing Levees (U.S. Army Engineer Waterways Experiment Station Geotechnical Laboratory, U.S.A., 1994).

[2] J.M. Duncan: Journal of Geotechnical and Geoenvironmental Engineering, Vol. 126 (2000) No.4, p.307.

[3] Guangzhou Central Mines Jiangnan Foundation Engineering Corporation: Geotechnical Inves- tigation Report for Comprehensive Regulation Project of Guangzhou Chen Clan Academy Cultural Square and Nearby Environment (Guangzhou Central Mines Jiangnan Foundation Engineering Corporation, P.R.C., 2009). (in Chinese)

[4] G.H. Yang: Practical Calculation Method of Retaining Structures for Deep Excavations and Its Application (Geological Publishing House, P.R.C., 2004). (in Chinese)

[5] Ministry of Housing and Urban-Rural Development of the People's Republic of China: GB50007-2011 Code for Design of Building Foundation (China Architecture and Building Press, P.R.C., 2010). (in Chinese)

[6] Ministry of Construction of the People's Republic of China: Guideline of Risk Management for Construction of Subway and Underground Works (China Architecture and Building Press, P.R.C., 2007). (in Chinese)