A Dynamic Centrifuge Model Test for the Seismic Strengthening of Existing Embankments by the Reinforcement Bar Inserting Method
Seismic strengthening of existing embankments for Level II Earthquake Motion has been posed as an issue since the Great Hanshin Earthquake. It is considered as necessary to perform seismic strengthening according to the importance of the embankments. The aim of this report is to inspect economical seismic strengthening measures for existing road embankments. We inspected whether we could achieve mitigation of deformation in Level II Earthquake Motion by casting reinforcing bars, which are effective for general purposes in the existing embankments. We inspected this with a dynamic centrifuge model experiment. We placed the reinforcing bars in certain intervals on the slope side and under the roadbed,and also set bearing pressure plates at the head of the placed reinforcing bars. As a result, the sinking of the embankment was mitigated for Level II Earthquake Motion. Also, it was confirmed that the cracks on the top of the embankment were reduced.
l experiment Level II Earthquake Motion seismic strengthening measures existing embankment reinforcing bar bearing pressure plate
H.Hashimoto S.Nishimoto H.Hayashi K.Kawakami
Researcher,Civil Engineering Research Institute for Cold Region,PWRI,Sapporo.Japan Head,Civil Engineering Research Institute for Cold Region,PWRI,Sapporo.Japan Chief Researcher,Civil Engineering Research Institute for Cold Region,PWRI,Sapporo.Japan Planning Officer,Hokkaido Regional Development Bureau,Sapporo.Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）