| BEHAVIOR CHARACTERISTICS OF COMPOSITE DAM USING CENTRIFUGE |
|---|
|
학술지명 USSD(미국대댐학회)
저자 임정열,하익수
발표일 2011-04-18
|
|
Existing dams are an important part of the safety problems, because climate change isrelated to increased earthquakes magnitude and the PMP and PMF.Dam safety problems are no exceptions. Especially, the composite dam which isconstructed other dam types has characteristic of different behavior during the earthquake.In the evaluation of the seismic stability of a composite dam, besides others, the mainproblem is the dynamic interaction between concrete gravity dam and soil embankment.In this study is analyzed dynamic behavior characteristic of composite dam, which iscomposed of concrete gravity and embankment section, using centrifuge (includingshaking table test). In this test, prototype model is 1/40 scale model of the existingcomposite dam and the test condition is centrifugal a 40g. In addition, the Hachinohe(long-period) and Ofunato (short-period) waves are applied.The characteristics of dynamic behavior are compared with those obtained by thecentrifuge test which is carried out in the earthquake wave of Korea earthquakeconditions. Furthermore, the results obtained in this the centrifuge test are compared withthe 3D numerical analysis of the composite dam. |