...Xiaobing Xu; Yihuai Liang; Qi Hu; Mingyuan Wang; Huajian Fang; Jianlin Yu Assembled H-shaped steel strut ( AHSS ) was applied in a deep excavation project. During the excavation process, abnormal flexural deformation of one AHSS was found. To evaluate the safety redundancies of the AHSS when...

...Qi Hu, PhD; Xiao Bing Xu, PhD; Tian Ming Huang, MEng; Shao Qi Lu, MEng A collapse of deep excavation in soft soil happened in Nanjing, China. The collapse mechanisms were studied through in situ investigations, back-calculations and numerical simulations. It was found that the incorrect design (due...

...Wei-Dong Wang, PhD; Qing Li, PhD; Yun Hu, PhD On 27 June 2009, a 13-storey building founded on pretensioned spun high-strength concrete piles suddenly collapsed in Shanghai, China. Prior to the collapse, an underground garage was excavated to the south of the building while excavated soil...

.... To facilitate a 15 m deep excavation, a diaphragm wall was constructed and a well-point dewatering system was adopted to keep the water table below the base of the excavation. However, during the foundation work, sand boiling was observed accompanied by foundation heaving and uneven settlement of the wall...

...Mandy Korff, PhD Individuals and project-based organisations in the construction industry can learn in a (more) systematic way from case studies and the monitoring of underground construction works. Underground construction projects such as tunnels and excavations suffer as much or more from...

...Dan Eschenasy, PE, FSEI The New York City (NYC) construction boom of 2004–2008 was accompanied by a series of accidents occurring, in particular, during lot-line demolition and excavation operations. The forensic investigations performed by the NYC Department of Buildings revealed that most...

... making in the order of 200 gallons per minute (909 l/min). Tunnel advance through ‘exceptionally poor’ ground required modification to the excavation methodology and implementation of additional support measures. Evaluation of geotechnical data from the undersea tunnel suggests that the Q-system provided...

.... These buildings were demolished shortly afterwards and rebuilt a couple of years later. Measurable ground settlements reached a distance of 50 m. 28 02 2013 29 07 2013 ICE Publishing: All rights reserved 2013 excavation failures tunnels & tunnelling As metropolitan...

...Jen-Cheng Liao, PhD, CEng; San-Shyan Lin, PhD, CEng, MASCE; Sheng-Der Yang, MSc, CEng In this paper, failure of a drilled shaft stabilised slope during basement excavation of an office building in Taipei city, Taiwan, is investigated. Four and two stages of excavation along the respective east...