岩土工程学报2016，Vol.38Issue(10)：1881-1888,8.DOI:10.11779/CJGE201610018
大尺度土坝漫顶溃决试验工程性态测试与分析
Monitoring and analysis of full-scale embankment overtopping failure tests
摘要
Abstract
Overtopping is one of the major factors leadingto embankment dam failure.In order to study damperformance and evolution before damfailure, a full-scale overtopping failure test on embankment dam with the maximum height of 9.7m is carried out. The monitoring techniques for thetest with various instruments are introduced,including water level gauges, thermometers, osmometers, piezometer tubes, distributed optical cables, moisture transducers, inclinometers, multi-parameter transducers, total station, level gauges, etc. The seepage, deformation, temperature data and variation characteristics of the dam are monitored from dam filling, initial impounding to dam failure.The monitoring data are analyzed, showing the reliability and validity of the osmometers, moisture transducers, inclinometers and multi-parameter transducers, and their monitoring techniques are verified.The moisture transducers are more sensitive thantheosmometers during reservoir impounding. The dam body deflects from upstream to downstream with the increase ofreservoir water.The observed maximum dam settlement is 5.21%,and the observed maximum dam inclination is 2.242°.Theresearch results are valuable to the studyon the evolution mechanism of dams andtheearly-warning indices of unexpected accidents.关键词
土坝/大尺度/漫顶溃决试验/测试技术Key words
embankment dam/full scale/overtopping failure test/monitoringtechnique分类
建筑与水利引用本文复制引用
王士军,谷艳昌,王宏,黄海兵,皞严吉,庞琼..大尺度土坝漫顶溃决试验工程性态测试与分析[J].岩土工程学报,2016,38(10):1881-1888,8.基金项目
国家重点研发计划项目（2016YFC0401600）；国家国际科技合作专项项目（2011DFA72810）；水利部公益性行业科研专项（201501033）；南京水利科学研究院重点基金项目（Y713007）；江苏省水利科技项目 （）
