大尺度土坝漫顶溃决试验工程性态测试与分析

王士军; 谷艳昌; 王宏; 黄海兵; 严吉皞; 庞琼

doi:10.11779/CJGE201610018

大尺度土坝漫顶溃决试验工程性态测试与分析 English Version

王士军^1,2,
谷艳昌^1,2,
王宏^1,2,
黄海兵^1,2,
严吉皞^1,2,
庞琼^1,2

1. 南京水利科学研究院,江苏南京 210029; 2.水利部大坝安全管理中心,江苏南京 210029

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

详细信息

作者简介:
王士军(1965- ),男,江苏涟水人,博士,教授级高工,博士生导师,主要从事大坝安全与管理研究工作。E-mail: sjwang@nhri.cn。

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出版历程
- 收稿日期: 2015-08-23
- 发布日期: 2016-10-24

Monitoring and analysis of full-scale embankment overtopping failure tests

1. Nanjing Hydraulic Research Institute, Nanjing 210029, China;
2. Dam Safety Management Center of the Ministry of Water Resources, Nanjing 210029, China

摘要

摘要: 漫顶是土坝溃决的主要原因。利用原体试验土坝（坝高9.7 m）,应用渗流压力、水分、测斜、分布式光缆等传感器及数据采集系统,开展了漫顶溃决试验工程性态测试研究,获取了试验坝填筑、分阶段蓄水和溃决过程的渗流、温度和变形的测试数据及变化特征。测试结果分析表明：坝体渗流压力与库水位明显相关,坝体含水率灵敏性比渗流压力灵敏性快;坝体水平位移由向上游逐渐向下游发展,坝体最大倾度2.242°,坝顶表面最大沉降率为5.21%。测试结果为土坝灾变机理研究及溃坝早期预警提供基础数据。
- 土坝 /
- 大尺度 /
- 漫顶溃决试验 /
- 测试技术
Abstract: Overtopping is one of the major factors leading to embankment dam failure. In order to study dam performance and evolution before dam failure, a full-scale overtopping failure test on embankment dam with the maximum height of 9.7 m is carried out. The monitoring techniques for the test 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 than the osmometers during reservoir impounding. The dam body deflects from upstream to downstream with the increase of reservoir water. The observed maximum dam settlement is 5.21%, and the observed maximum dam inclination is 2.242°. The research results are valuable to the study on the evolution mechanism of dams and the early-warning indices of unexpected accidents.
- embankment dam /
- full scale /
- overtopping failure test /
- monitoring technique

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参考文献(6)

[1]	谷艳昌, 王士军, 庞琼, 等. 土坝温度场反馈渗透流场可行性研究[J]. 岩土工程学报, 2014, 36(9): 1721-1726. (GU Yan-chang, WANG Shi-jun, PANG Qiong, et al. Feasibility of temperature field feeding back seepage field for earth dams[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1721-1726. (in Chinese))
[2]	陈生水. 土石坝溃决机理及溃决过程模拟[M]. 北京: 中国水利水电出版社, 2012. (CHEN Sheng-shui. The mechanism and simulation of earth dam failure process[M]. Beijing: China Waterpower Press, 2012. (in Chinese))
[3]	李云, 宣国祥, 王晓刚, 等. 土石坝漫顶溃决模拟与抢护 [M]. 北京: 中国水利水电出版社, 2015. (LI Yun, XUAN Guo-xiang, WANG Xiao-gang, et al. Simulation and urgent repair of embankment overtopping failure[M]. Beijing: China Waterpower Press, 2015. (in Chinese))
[4]	ZHU Y H, VISSER P J, VRIJLING J K, et al. Experimental investigation on breaching of embankments[J]. Sci China Tech Sci, 2011, 54: 148-155.
[5]	KOELEWIJN A R, VRIES (de) G. Full-scale field validation of innovative dike monitoring systems[C]// Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering. Paris, 2013: 931-934.
[6]	王宏, 谷艳昌. 多参数传感器在大坝监测中适用性研究[J]. 水电自动化与大坝监测, 2014(2): 36-39. (WANG Hong, GU Yan-chang. Study on application of multi-parameter sensors in dam monitoring[J]. Hydropower Automation and Dam Monitoring, 2014(2): 36-39. (in Chinese))

施引文献(6)

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