Integrated Evaluation for Earthquake Resistance of Embankmet Dams Damaged by the 1995 Hyogoken-Nanbu Earthquake and Application of the Research Results to Engineering Education

1995年兵库县南部地震受损堤坝抗震综合评价及研究成果在工程教育中的应用

基本信息

批准号：
10556052
负责人：
UCHIDA Kazunori
金额：
$ 8.19万
依托单位：
Kobe University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2001
项目状态：
已结题

项目摘要

1) Location, damage and emergency repair of embankment dams damaged by the 1995 Hyogoen-nanbu Earthquake are unified in a GIS database.2) The following in-situ tests were performed to evaluajte earthquake resistance of restored embankments and foundations at the embankment dams of Niroku-ike, Sugatadani-ike and Daiteibou-ike damaged ; boring log, PS loging, Reflection logging.3) Stability analysis during earthquake and earthquake response analysis were performed to consider the main cause of the damage for the embankment dams of Idenoshiri-ike and Niroku-ike, and it is concluded that the main cause is the development of excess pore pressure in the upper slope of these dams.4) Cyclic undrained triaxial tests under strain-path control were performed using embankment materials sampled at the three embankment dams mentioned above. The purpose of this test is to consider the possibility of simulating soil strain behavior during earthquake usirtg test results. Control and data acquisition programs are developed for this test using Visual Basic. As a result of the test, it is concluded that the control of strain amplitude is easier than the conventional test under stress-path control, and that the deformation characteristics of shear modulus ratio and damping ratio.5) K0 consolidation test is easily controlled using strain-path control.6) The dynamic deformation analysis of two-dimensional model of embankment dams was proposed to evaluate earthquake resistance of embankment dams using dynamic deformation parameters obtained form the cyclic tests.7) Color figures of the analyzed results were shown to be available for design using KSUWAD.

1) 1995 年兵库县南部地震中受损堤坝的位置、损坏和紧急修复统一在 GIS 数据库中。 2) 进行了以下现场试验，以评估 1995 年兵库县南部地震中修复的堤坝和地基的抗震性能二鹿池、菅田谷池和大亭池受损；钻孔测井、PS测井、反射测井。 3)对出手尻池和二鹿池堤坝进行震中稳定性分析和地震响应分析，考虑其损坏的主要原因，得出的结论是：是这些大坝上坡超孔隙水压力的发展。4) 使用在上述三个堤坝取样的堤坝材料进行了应变路径控制下的循环不排水三轴试验多于。该测试的目的是考虑利用测试结果模拟地震期间土壤应变行为的可能性。使用 Visual Basic 为此测试开发控制和数据采集程序。试验结果表明，在应力路径控制下，应变幅的控制比常规试验更容易，剪切模量比和阻尼比的变形特性也较好。 5）K0固结试验易于控制应变路径控制。6)提出了路堤坝二维模型动态变形分析方法，利用循环试验获得的动态变形参数来评价路堤坝的抗震性能。7)分析结果的彩色图为可供设计使用克苏瓦德。