著者

丸山 暉彦 後藤 巌 阿部 長門 姫野 賢治 土屋 雷蔵 林 正則

出版者

長岡技術科学大学

雑誌

長岡技術科学大学研究報告 (ISSN:03885631)

巻号頁・発行日

vol.10, pp.119-127, 1988-08

被引用文献数

3

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The development and practical application of the falling weight deflectometer (FWD) which is a nondestructive testing equipment to define the shape of deflection basin, are described. The estimation of the structural condition of the pavements in Nagaoka city, Niigata prefecture is performed. The procedure is based on multilayered elastic theory to backcalculate elastic moduli from FWD deflection data. The study has indicated that it is possible to evaluate structural defect without destroying the pavement.

著者

早川 典生 河原 能久 後藤 巌

出版者

長岡技術科学大学

雑誌

長岡技術科学大学研究報告 (ISSN:03885631)

巻号頁・発行日

vol.7, pp.35-41, 1985-09-20

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The overturning of a motor vehicle passing along Route 8 at Yoneyama along the Japan Sea coast is reported to have occurred on 29 October, 1976, due to a strong onshore wind. This paper reports a model study aimed to elucidate the mechanism of this incident. The model terrain and vehicle were scaled down to one to 30. Wind velocity, pressure distribution along the terrain as well as model vehicle are measured, and the drag and lift force and the overturning moment of the model vehicle are calculated. The result of the study points to the possibility of studying the mechanism of overturning accident.