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Construction approaches and design methods of braced excavation walls

Group Assignment

Contents
Overview ............................................................................................................................................... 3
Introduction .......................................................................................................................................... 3
Shallow Trenches .................................................................................................................................. 7
Deep Cuts.............................................................................................................................................. 9
Excavation Support Methods ................................................................................................................ 9
Soldier beam and lagging ...................................................................................................................... 9
Soil Nailing .......................................................................................................................................... 12
Soil Nailing Examples .......................................................................................................................... 13
Excavation Bracing .............................................................................................................................. 15
Tieback Systems .................................................................................................................................. 17
Tieback Examples ................................................................................................................................ 20
GLOSSARY OF TERMS .......................................................................................................................... 21
Summary


References: Chun, Sungho, Chi Yong Song, and Jong Sung Lee. 2010, "A Case Study of Deep Excavation in Layered Ground.". Dan, K., and R. B. Sahu, 2010, "Ground Movement Prediction For Braced Excavation in Soft Clay.", Indian Geotechnical Conference. Dan, Kingshuk, and Ramendu Sahu. 2012, "A theoretical study on ground movement prediction for braced excavation in soft clay", J Ross Publishing. Hsiao, E., Kung, 2006.G., Juang, C., and Schuster, M. Estimation of Wall Deflection in Braced Excavation in Clays Using Artificial Neural Networks, GeoCongress 2006, Atlanta, American Reinforcing and Stabilising Techniques In Engineering Practice, 1978, Sydney, Australia, School of Engineering, New South Wales Institute of Technology, Broadway, NSW, pp Luo, Zhe, et al. 2011, "Simplified approach for reliability-based design against basal-heave failure in braced excavations considering spatial effect." Journal of Geotechnical and Luo, Zhe, et al. 2012, "Reliability analysis of basal-heave in a braced excavation in a 2-D random field." Computers and geotechnics, Pp Rechea, Cecilia, Séverine Levasseur, and R. Finno. 2008, "Inverse analysis techniques for parameter identification in simulation of excavation support systems" Computers and Tsui, Y. and Cheng, Y.M, 1989. “A Fundamental Study of Braced Excavation Construction”, Hong kong, Usmani, A., G. V. Ramana, and K. G. Sharma. 2010, "Analysis of Braced Excavation Using Hardening Soil Model". Xu, Hai-yong, Wei Liu, and Long-zhu Chen. 2013, "A simplified analysis method for the lateral deformation of braced excavations" Journal of Shanghai Jiaotong University Zhang, F., Li, J., and Rao, P. 2011.Numerical Analysis for Earth Pressure of Braced Excavation in Soft Clay Considering Fluid-Structure Coupling Interaction
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