Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Load Test Program to Validate Model for Post Grouted Drilled Shafts
Post stressing of drilled shaft tips using pressure grouting techniques can significantly increase the ultimate capacity of the shafts. Conventional drilled shafts generally require substantial tip movement to develop full end bearing. Recent studies have found that the end bearing component can be significantly increased utilizing pressure grouting after the placed concrete has had sufficient time to set up. The post construction stressing of the tip of the shaft mobilizes the deformation of the supporting soils needed to develop increased end bearing. This paper presents a discussion of the geotechnical design considerations of this innovative construction technique. The paper also presents a summary of recent research that utilized full-scale load tests to evaluate post stressed drilled shaft design and construction. The studies were performed along the Gulf coast from Florida to Texas. In addition, the results of several full load tests performed in the Houston area will be presented.
Load Test Program to Validate Model for Post Grouted Drilled Shafts
Post stressing of drilled shaft tips using pressure grouting techniques can significantly increase the ultimate capacity of the shafts. Conventional drilled shafts generally require substantial tip movement to develop full end bearing. Recent studies have found that the end bearing component can be significantly increased utilizing pressure grouting after the placed concrete has had sufficient time to set up. The post construction stressing of the tip of the shaft mobilizes the deformation of the supporting soils needed to develop increased end bearing. This paper presents a discussion of the geotechnical design considerations of this innovative construction technique. The paper also presents a summary of recent research that utilized full-scale load tests to evaluate post stressed drilled shaft design and construction. The studies were performed along the Gulf coast from Florida to Texas. In addition, the results of several full load tests performed in the Houston area will be presented.
Load Test Program to Validate Model for Post Grouted Drilled Shafts
Fernandez, Americo L. (Autor:in) / Pando, Miguel A. (Autor:in) / King, Philip G. (Autor:in)
Geo-Denver 2007 ; 2007 ; Denver, Colorado, United States
14.10.2007
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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