Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Laboratory Tests on Model Piled Raft Foundations
Laboratory tests were performed on four model piled raft foundations in a pot filled with over-consolidated clay. In these experiments a concentrated load or pattern of loads was applied to a foundation, and settlements and strains were measured for 60 minutes before adding more load. Bending moments were then determined from the strain measurements. Load-settlement and load-moment curves were constructed by considering each application of load as a separate test and adding the increments in settlement and strain to obtain both undrained and drained results at increasing levels of total load. The experimental results are compared with the results of theoretical calculations using values of Young's modulus for the clay backfigured from results for similar tests on single piles and small rigid circular rafts. The method of analysis for piled raft foundations which was used to obtain the theoretical results is described. In this method the raft is represented as a thin plate on piles and an elastic continuum. Non-linear effects such as pile or soil bearing failure and uplift of the raft can be treated by this method of analysis.
Laboratory Tests on Model Piled Raft Foundations
Laboratory tests were performed on four model piled raft foundations in a pot filled with over-consolidated clay. In these experiments a concentrated load or pattern of loads was applied to a foundation, and settlements and strains were measured for 60 minutes before adding more load. Bending moments were then determined from the strain measurements. Load-settlement and load-moment curves were constructed by considering each application of load as a separate test and adding the increments in settlement and strain to obtain both undrained and drained results at increasing levels of total load. The experimental results are compared with the results of theoretical calculations using values of Young's modulus for the clay backfigured from results for similar tests on single piles and small rigid circular rafts. The method of analysis for piled raft foundations which was used to obtain the theoretical results is described. In this method the raft is represented as a thin plate on piles and an elastic continuum. Non-linear effects such as pile or soil bearing failure and uplift of the raft can be treated by this method of analysis.
Laboratory Tests on Model Piled Raft Foundations
T. J. Wiesner (Autor:in) / P. T. Brown (Autor:in)
1978
41 pages
Report
Keine Angabe
Englisch
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