about pdf on deep foundations case histories innovations in design methods and equipment

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send pdf deep foundation history innovation in design methods and equipments

pdf on deep foundations case histories innovations in design methods and equipment

This one-day seminar is organized by Deep Foundations Institute and the Geotechnical Society of Edmonton and programmed jointly by DFI's Technical Committees on Soil Nails and Tiebacks and Landslide and Slope Stabilization. Geotechnical specialists from academia and industry will present the fundamentals of design and construction for soil nail/tiebacks and landslide/slope stabilization practices and case histories and advances in construction methods. Fundamentals will cover an overview of the appropriate geotechnical site conditions where these techniques are typically used, basic design approaches, materials and methods, limitations and references for additional learning. Presentations will highlight specialty design and construction solutions using a strength reduction design method, hollow bars as soil nails and micropiles, launched soil nails, drainage combined with platypus anchors, jet grouting with micropiles, Platepiles and deep mixing. A panel discussion will follow the presentations allowing time for questions and answers and interaction between speakers and attendees. Exhibit space and sponsorship opportunities are available.

Minzhi station foundation pit in Shenzhen subway is adjacent to Pingnan railway. There is obvious unsymmetrical loading above the pit, and the pit is affected by the dynamic load from train. Therefore, the impact of pit excavation on the railway and the safety of the pit itself must be paid close attention to. The main technical measures adopted in the design and construction of deep foundation pit adjacent to railway is introduced. The measures include using steel pipe piles and prestressed anchor cables to reinforce the railway embankment, using diaphragm wall in the building envelope, setting strand prestressed cables in the middle of the diaphragm wall, using sleeve valve pipe grouting to reinforce the soil, and so on. The settlement of the railway embankment and track, as well as the horizontal displacement of the diaphragm wall, is monitored. Monitoring results show that these technical measures can ensure the normal operation of the railway and the safety of the pit itself.