2007.11.15

BEHAVIOUR OF SHALLOW RING FOUNDATIONS WITH GEOTEXTILES(1987)

H.KISHIDA(Tokyo Institute of Technology)・.INA(Takechi Engineering)・M.UESUGI(Tokyo Institute of Technology)

■掲載誌:9TH SOUTHEAST ASIAN GEOTECHNICAL CONFERENCE BANGKOK,THAILAND 7-11
■発行所:国際土質工学会
■発行:1987.12

This paper describes an application of a geotextile to shallow ring foundations. In this method, a geotextile is spread over the open space of a ring foundation and is fastened to its circular beam. Scale models on saturated cohesive soil were tested in a laboratory on the behavior of three types are a reinforced ring foundation with geotextile, a circular plate foundation and a ring foundation. The model foundations were loaded vertically for varioussoil strength and embedded depth. Lead shots were placed in the model ground to observe the failure patterns of soil mass. X-ray photographs were taken at intervals during the loading. The test results show that the ultimate bearing capacity of the reinforced ring foundation is equal to that of the circular plate foundation. The settlement of the reinforced ring foundation is, however, larger than that of the circular plate foundation. The X-ray photographs show that the displacement patterns of the lead shots are similar between the two types of foundations.

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