The threaded displacement piling system technical and economical efficiency leading to sustainable foundations solutions
The threaded displacement piling system technical and economical efficiency leading to sustainable foundations solutions
The search of the economic and sustainable alternatives to lower the costs and to reduce the carbon footprint of the foundations by the diversification of the piling technologies is a continuous task for the special foundation industry. Even though the displacement piles usually have increased bearing capacities compared with the bored piles, their execution is associated with vibration, dynamic and phonic pollution of the local environment. One of the recent economical deep foundation solutions is the threaded displacement piling system, the “screw” concept. The pile identified by two diameters (core / threads) is successfully applied in the range 330/500 to 530/700mm not only in Great Britain, France, but also in Central – East Europe in Romania, Poland, Hungary, recent successes being registered as well in South Africa. The technique is fully covered in Europe by the standard EN 12699:2015 adopted in Romania as SR EN 12699:2015. The paper present by means of more than 250 simple and instrumented loading tests the technological details, the constructional principles and the choosing of dimensions, the application possibilities, the design approaches according to Eurocode 7 as well as to the Romanian Pile design norm NP123, and finally the ecological impact analysis and sustainability evaluation of the Screwsol threaded displacement piling system.
Lorand Sata; S. Manea
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
D - Current and new construction methods
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