共查询到18条相似文献,搜索用时 46 毫秒
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融雪径流预报在水库的春汛预报和春季的水库控制运用过程中是一项非常重要的预报工作,它是以上一年的降雪量为基础。结合水库的历史资料,再根据当时的水、气温、风速等水数据进行收集和处理,实现水库对所谓“桃花水”的预报。 相似文献
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龙凤山水库洪水调度系统是以水自动测报系统工程为基础,把降雨,水位,流量水数据进行收集和处理,实现水库综合利用的优化调度,以提高防洪能力和水资源利用的社会效益。 相似文献
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龙凤山水库土坝渗流观测与数据分析 总被引:2,自引:0,他引:2
在对龙凤山水库土坝渗流观测资料进行整理、分析并选用合理观测数据的基础上,分析了土坝渗透稳定性,结果表明对土坝管涌段的工程消险措施是正确的。 相似文献
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为在保证工程安全的前提下,增加汛后拦蓄水量,发挥工程兴利效益,对龙凤山汛期防洪采取了分期控制运用,简介了分期控制时段划分及各期控制运用情况。 相似文献
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The seismic safety of the reinforcement dam slope is studied through shaking table test and numerical simulation.The dynamic characteristics of dam slopes,failure mechanism,seismic stability,as well as the effect of reinforcement during earthquakes are discussed.An elasto-plastic analysis method (FLAC) is used to simulate the dynamic failure process of the reinforcement dam slope.The change law of permanent displacement of dam slope is studied.The effect of the length and the space of reinforcement on the depth of slip surface and the slope stability are investigated.Good agreement is obtained between the numerical results and those from shaking table tests.The results show that the dynamic failure is a gradual process not at a particular time.With the increase of the reinforcement length or the decreasing reinforcement spacing,the slip surface becomes deeper and thus the slope stability is improved.The reinforcement can obviously enhance the overall stability of slope dam.It can also effectively control the shallow sliding of slope.These researches provide basic data for reinforcement measures design of earth-rockfill dam. 相似文献
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坝区岩体蠕变参数反演与边坡开挖流变计算分析 总被引:1,自引:0,他引:1
软弱岩体是影响边坡安全稳定的重要因素,为有效反映大岗山坝区辉绿岩脉和断层破碎带等软弱岩体的蠕变变形特性,根据大岗山坝区现场压缩蠕变试验资料和推导的基于广义开尔文模型的刚性承压板边缘岩体的粘弹性变形计算公式,采用优化反演法计算得到坝区软弱岩体的蠕变力学参数,建立了大岗山水电站坝区边坡开挖卸荷的三维流变计算分析模型,使用FLAC3D软件详细分析了边坡分步开挖过程中坝肩坝基岩体的变形特性和软弱岩体的蠕变力学效应,获得了对工程设计和施工具有指导意义的建议和结论. 相似文献