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81.
讨论了柘林水电站安全监测网布置的合理性和特点,分析了安全监测成果;并采用能反映边坡变形行为特点的模型,对重要监测点的监测数据进行了变形预测。综合分析认为边坡现处于缓慢的变形阶段,且变形趋于稳定。 相似文献
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《Geoforum》2015
This article tells the story of long-lasting and ongoing struggles surrounding the construction plans for a major reservoir on the headwaters of the Kemi River in the Finnish Province of Lapland. A point of contention since the beginning of hydropower development on the river in the mid twentieth century, the reservoir project has been promoted and abandoned multiple times in waves of land purchasing, legal procedures, opposition campaigns, and the delineation of nature reserves. Despite a Finnish Supreme Administrative Court ruling officially setting an end to the project, it never entirely left public discourse and is currently being re-negotiated in slightly adapted form. Articulating voices and documenting practices of riverbank inhabitants, activists and hydro electricity managers, this article presents the struggle as multiple modes of heterogeneous engineering, where both proponents and opponents work towards creating different realities. The article develops the metaphor of heterogeneous engineering by drawing attention to three temporal dimensions central to the reservoir struggle: moments, which refer to the situated emergence of practices and strategies; futures, which speak to the attempts to build and contest expectations regarding conflicting projects; and durations, which consider the cumulative aspects of a decades-long struggle on people and landscapes. Thereby, the article contributes to discussions on making, planning and environmental management, and illustrates ways of studying these processes as situated practices in relation to time. 相似文献
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Hydrological modeling using a dynamic neuro-fuzzy system with on-line and local learning algorithm 总被引:1,自引:0,他引:1
This paper introduces the dynamic neuro-fuzzy local modeling system (DNFLMS) that is based on a dynamic Takagi–Sugeno (TS) type fuzzy inference system with on-line and local learning algorithm for complex dynamic hydrological modeling tasks. Our DNFLMS is aimed to implement a fast training speed with the capability of on-line simulation where model adaptation occurs at the arrival of each new item of hydrological data. The DNFLMS applies an on-line, one-pass, training procedure to create and update fuzzy local models dynamically. The extended Kalman filtering algorithm is then implemented to optimize the parameters of the consequence part of each fuzzy model during the training phase. Local generalization in the DNFLMS is employed to optimize the parameters of each fuzzy model separately, region-by-region, using subsets of training data rather than all training data. 相似文献
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西藏申扎地区奥陶系地层组的建立不是根据岩性特征,而是根据地层中的化石组合和多重地层划分的原则。笔者认为,申扎组应被废弃,德悟卡下组底界应作修订,并对该地区奥陶系岩石地层单位进行了简要的时代讨论和对比。 相似文献
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我国西部处于构造活动带,在水电开发过程中的地震和水库诱发地震问题一直受到公众的关注.本文对约翰·杰克逊先生“中国西部地震灾害与水电大坝”中的一些问题做了针对性的讨论,对其文章的专业性和某些结论提出了质疑.本文认为“中国西部地震灾害与水电大坝”的作者,引用的基础资料都是极小比例尺的图件,精度较差,不能作为精细论证的依据.构造板块学认为:构造板块的边缘地带,构造运动最活跃,板内次级断裂活动性就相对差些.我国西部除西藏处于板块碰撞的边缘地带外,四川、云南等大片水电能源蕴藏地属于板内构造,并非最活跃区.通过对近代地震工程学的发展和翔实的事例论证,说明他得出我国西部建坝是“灾难性后果的危险尝试”的结论是荒谬的.最后,对汶川大地震与水库诱发地震的问题进行了阐述. 相似文献