Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Influence of Subsoil Characteristics on Embedment Depths and Load Capacity of Large Diameter Pipe Piles
Driven H-piles and pipe piles are frequently used as substructure units for highway bridges constructed in the Province of Alberta, Canada. While geotechnical investigations and recommendations often precede the design of the substructure units, test piles are traditionally driven at sites to determine the capacity of the piles using "so called" pile driving formulae, the efficiency of installation of the driven piles and to assess what pile lengths are required. Where geotechnical investigation and pile driving information correlate, there is generally confidence in the proposed piling scheme. Where there are differences, very often the pile driving results tend to govern except in circumstances whereby the results show exceedingly large variances in pile lengths. This was the situation at a bridge site across Battle River in the Province of Alberta. Pile driving records of this site showed piles reaching refusal at a depth of about 55 meters (180 ft), whereas the geotechnical design indicated that piles could be stopped at about 30 meters (100 ft). Pile Driving Analyzer (PDA) testing was done during the installation of production piles to ensure that geotechnically derived design capacity values were achieved and thus optimize the depth of pile driving. This paper addresses details of the site characteristics, the details of the foundation investigation and pile driving analyzer test results. The results of the PDA testing confirmed the geotechnical recommendations.
Influence of Subsoil Characteristics on Embedment Depths and Load Capacity of Large Diameter Pipe Piles
Driven H-piles and pipe piles are frequently used as substructure units for highway bridges constructed in the Province of Alberta, Canada. While geotechnical investigations and recommendations often precede the design of the substructure units, test piles are traditionally driven at sites to determine the capacity of the piles using "so called" pile driving formulae, the efficiency of installation of the driven piles and to assess what pile lengths are required. Where geotechnical investigation and pile driving information correlate, there is generally confidence in the proposed piling scheme. Where there are differences, very often the pile driving results tend to govern except in circumstances whereby the results show exceedingly large variances in pile lengths. This was the situation at a bridge site across Battle River in the Province of Alberta. Pile driving records of this site showed piles reaching refusal at a depth of about 55 meters (180 ft), whereas the geotechnical design indicated that piles could be stopped at about 30 meters (100 ft). Pile Driving Analyzer (PDA) testing was done during the installation of production piles to ensure that geotechnically derived design capacity values were achieved and thus optimize the depth of pile driving. This paper addresses details of the site characteristics, the details of the foundation investigation and pile driving analyzer test results. The results of the PDA testing confirmed the geotechnical recommendations.
Influence of Subsoil Characteristics on Embedment Depths and Load Capacity of Large Diameter Pipe Piles
Diyaljee, Vishnu (Autor:in) / Pariti, Murthy (Autor:in)
International Deep Foundations Congress 2002 ; 2002 ; Orlando, Florida, United States
Deep Foundations 2002 ; 126-142
01.02.2002
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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