Proceedings of the KSR Conference (한국철도학회:학술대회논문집)
- 2011.10a
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- Pages.836-842
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- 2011
P-y Curves from Large Displacement Borehole Testmeter for Railway Bridge Foundation
장변위공내재하시험기를 이용한 철도교 기초의 P-y곡선에 관한 연구
Abstract
The lateral stability of bridge foundations against train moving load, emergency stopping load, earthquakes, and so on is very important for a railway bridge foundation. A borehole test is much more accurate than laboratory tests since it is possible to minimize the disturbance of ground conditions on the test site. The representative borehole test methods are Dilatometer, Pressuremeter and Lateral Load Tester, which usually provide force-resistance characteristics in elastic range. In order to estimate P-y curves using those methods, the non-linear characteristics of soil which is one of the most important characteristics of the soil cannot be obtained. Therefore, P-y curves are estimated usually using elastic modulus (
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