Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Load Transfer Mechanism of Small-Diameter Grouted Anchors
Results from instrumented 187 mm (7-3/8 in.)-diameter (nominal) tremie grouted multi-strand tendon anchors are presented. Unique instrumentation consisting of strain gages mounted to PVC pipe sections were used to measure strains in the grout column in the bonded and unbonded zone. This is difficult and rarely done in small diameter anchors due to the small clearance between tendons and the borehole wall. The results provide useful data indicating progression of tension and compressive strains down the anchor during loading, contribution of grout in the unbonded zone to anchor capacity, and additional support that high radial stresses (greater than overburden pressures) contribute to high anchor adhesion values.
Load Transfer Mechanism of Small-Diameter Grouted Anchors
Results from instrumented 187 mm (7-3/8 in.)-diameter (nominal) tremie grouted multi-strand tendon anchors are presented. Unique instrumentation consisting of strain gages mounted to PVC pipe sections were used to measure strains in the grout column in the bonded and unbonded zone. This is difficult and rarely done in small diameter anchors due to the small clearance between tendons and the borehole wall. The results provide useful data indicating progression of tension and compressive strains down the anchor during loading, contribution of grout in the unbonded zone to anchor capacity, and additional support that high radial stresses (greater than overburden pressures) contribute to high anchor adhesion values.
Load Transfer Mechanism of Small-Diameter Grouted Anchors
Bingham, N. John (Autor:in) / Mikkelsen, P. Erik (Autor:in) / Petersen, Gary L. (Autor:in)
Earth Retention Conference (ER) 2010 ; 2010 ; Bellevue, Washington, United States
Earth Retention Conference 3 ; 196-203
26.07.2010
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Load Transfer Mechanism of Small-Diameter Grouted Anchors
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