| 尾矿库初期坝稳定性的合成孔径雷达干涉变形检测与流固耦合数值模拟分析 |
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| 引用本文： | 赵小平,;任颖,;白本祥,;翟盛锐,;高创州.尾矿库初期坝稳定性的合成孔径雷达干涉变形检测与流固耦合数值模拟分析[J].中国安全生产科学技术,2014(5):17-23. |
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| 作者姓名： | 赵小平 ;任颖 ;白本祥 ;翟盛锐 ;高创州 |
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| 作者单位： | [1]金川集团股份有限公司安全环保部,金昌737104; [2]中国安全生产科学研究院,北京100012 |
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| 基金项目： | 基金项目：国家“十二五”科技支撑计划（2012BAK09802,2012BAK09806） |
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| 摘 要： | 某尾矿库初期坝采用分段施工,可能产生不均匀沉降,影响坝体的稳定性。采用孔径雷达干涉技术对尾矿库初期坝进行了短期变形速率观测,得出坝体右侧的后期填筑区域整体上与主体仍能够基本保持同步沉降。建立了三维流固耦合模型,分析了尾矿库初期坝的静力稳定性和渗流稳定性,结果表明:初期坝体的水平位移和竖向位移都在安全范围之内,考虑水和尾砂的共同作用,后期堆积坝堆积至1765m高程时,坝体顶部和后期回填区域,存在小量位移变形,静态稳定性安全系数达到2.25,初期坝能够保持稳定。
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| 关 键 词： | 尾矿库 初期坝 合成孔径干涉雷达(INSAR) 流固耦合 数值模拟 |
INSAR deformation detection and fluid-Solid coupling numerical simulation analysis on the stability of initial dam in tailings reservoir |
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| Institution: | ZHAO Xiao-ping, REN Ying, BAI Ben-xiang, ZHAI Sheng-rui, GAO Chuang-zhou (1. JinChuan Group Co. , LTD. , Jinchang Gansu 737104, China; 2. China Academy of Safety Science ＆ Technology, Beijing 100012, China) |
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| Abstract: | The initial dam of a tailings reservoir has been constructed in sections , and the differential settlement may affect the stability of dam body .A short-term observation for deformation rate of the initial dam was implemen-ted by INSAR, and the conclusion showed that the different area of dam body can keep pace with subsidence .Fur-thermore , a 3 D fluid-solid coupling numerical simulation model was established to analyze the stability of initial dam, and the conclusion showed that both the lateral displacement and vertical displacement of the dam body are within safe limits, and when the dam rises to the final attitude of 1765m, the safety factor of dam stability can reach 2.25, so the initial dam can be safe . |
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| Keywords: | tailings reservoir initial dam interferometric synthetic aperture radar（INSAR） fluid-solid coupling numerical simulation |
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