以缅甸DAPEIN(Ⅰ)水电站工程为例,论述了将WES实用堰的闸墩墩头向上游超长延伸之后,对泄洪安全所造成的影响。针对WES实用堰流量系数、堰面动水压力容易受边界因子影响的特点,对设计断面的堰顶布置和墩头形状进行了优化。根据堰面空化...以缅甸DAPEIN(Ⅰ)水电站工程为例,论述了将WES实用堰的闸墩墩头向上游超长延伸之后,对泄洪安全所造成的影响。针对WES实用堰流量系数、堰面动水压力容易受边界因子影响的特点,对设计断面的堰顶布置和墩头形状进行了优化。根据堰面空化数计算公式及水流特性推导出计算的关键部位,对空化数进行计算。采用几何比尺为1∶60的物理模型对溢流堰的泄流能力和堰面动水压力进行了试验测试。试验结果表明:溢流堰的模型试验泄流能力和设计泄流能力非常相近。堰面动水压力除工况2的B4测点出现了-1.2 k Pa的微小负压值外,其余堰面时均压强值均大于0。从而,在泄流能力和堰面动水压力两方面都验证了这种设计方案的合理性。该工程所遇到的结构布置问题在中低溢流坝工程中属常见问题,解决思路可为今后类似工程建设借鉴参考。展开更多
Despite Heidegger insists that Being and Time cannot be read as a kind of existential philosophy, such interpretation still holds in some aspect, for in it, the main content is a special kind of phenomenology of life,...Despite Heidegger insists that Being and Time cannot be read as a kind of existential philosophy, such interpretation still holds in some aspect, for in it, the main content is a special kind of phenomenology of life, even be called repeatedly as the foundation of the ontology of Being in general. The project of establishing an ontology of Being in general was ultimately never carried out. What Heidegger provides in Being and time is nothing but a phenomenology of life. It is peculiar that love and friendship as an important element of life is deliberately ignored. Such a deficiency of Heidegger, namely lacking love and friendship in fundamental ontology of Dasein, is probably the reason for his political fallacy during the II-World-War, notorious political mistake in his recent published Black Notebooks.展开更多
文摘以缅甸DAPEIN(Ⅰ)水电站工程为例,论述了将WES实用堰的闸墩墩头向上游超长延伸之后,对泄洪安全所造成的影响。针对WES实用堰流量系数、堰面动水压力容易受边界因子影响的特点,对设计断面的堰顶布置和墩头形状进行了优化。根据堰面空化数计算公式及水流特性推导出计算的关键部位,对空化数进行计算。采用几何比尺为1∶60的物理模型对溢流堰的泄流能力和堰面动水压力进行了试验测试。试验结果表明:溢流堰的模型试验泄流能力和设计泄流能力非常相近。堰面动水压力除工况2的B4测点出现了-1.2 k Pa的微小负压值外,其余堰面时均压强值均大于0。从而,在泄流能力和堰面动水压力两方面都验证了这种设计方案的合理性。该工程所遇到的结构布置问题在中低溢流坝工程中属常见问题,解决思路可为今后类似工程建设借鉴参考。
文摘Despite Heidegger insists that Being and Time cannot be read as a kind of existential philosophy, such interpretation still holds in some aspect, for in it, the main content is a special kind of phenomenology of life, even be called repeatedly as the foundation of the ontology of Being in general. The project of establishing an ontology of Being in general was ultimately never carried out. What Heidegger provides in Being and time is nothing but a phenomenology of life. It is peculiar that love and friendship as an important element of life is deliberately ignored. Such a deficiency of Heidegger, namely lacking love and friendship in fundamental ontology of Dasein, is probably the reason for his political fallacy during the II-World-War, notorious political mistake in his recent published Black Notebooks.
