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水下埋设柔性取排水管设计要点
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作者 邱兆山 靳付成 +1 位作者 刘帆 陈亚峰 《水运工程》 北大核心 2018年第6期74-77,共4页
在电厂大型海水直流冷却等取排水项目中,水下开槽埋设柔性管的设计与施工难度都较大,但国内外尚没有专门的技术规范。针对水上和水下不同的工程特点、参数敏感性和水下自然密实填料变形模量的取值等问题进行了对比分析,并采用实物现场... 在电厂大型海水直流冷却等取排水项目中,水下开槽埋设柔性管的设计与施工难度都较大,但国内外尚没有专门的技术规范。针对水上和水下不同的工程特点、参数敏感性和水下自然密实填料变形模量的取值等问题进行了对比分析,并采用实物现场试验和填料室内试验的方法进行验证;得出了水下埋设柔性管设计的要点,并提出了重点设计参数的推荐取值。 展开更多
关键词 水下埋设 柔性管 变形模量
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江苏大唐吕四港电厂500kV线路过江方案研究
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作者 徐向阳 阮龙飞 《人民长江》 北大核心 2007年第2期113-116,共4页
江苏大唐国际吕四港电厂拟铺设两回500 kV线路送2 400 MW功率输入上海电网。500 kV送电线路过江无论是采用埋设电缆过江,还是采用江中立塔架空线过江在国内尚无先例;尤其是埋设500 kV水下电缆,目前国外仅有加拿大和日本两个工程实例。因... 江苏大唐国际吕四港电厂拟铺设两回500 kV线路送2 400 MW功率输入上海电网。500 kV送电线路过江无论是采用埋设电缆过江,还是采用江中立塔架空线过江在国内尚无先例;尤其是埋设500 kV水下电缆,目前国外仅有加拿大和日本两个工程实例。因此,有必要探讨埋设电缆的过江路由、施工技术和运行安全的可行性。项目研究过程中分析了近百年来的河势演变资料和近40 a来河道实测资料,参照邻近工程桥墩冲刷物模试验研究成果,并采用数模计算,分析了长江口河道冲淤变化规律及发展趋势,选择了比较合适的电缆过江路由,提出了电缆埋设施工和运行安全的保护措施,得出了埋设电缆过江是完全可行且具有较好的经济效益的结论。 展开更多
关键词 500kV 交流电缆 水下埋设 施工技术 运行安全
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Soil Characteristics in Selected Landfill Sites in the Babylon Governorate, Iraq
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《Journal of Civil Engineering and Architecture》 2017年第4期348-363,共16页
The Babylon Governorate is situated in the middle of Iraq. It covers an area of 5,315 km2 and has 2,092,998 inhabitants distributed throughout its five major cities (Qadhaa). Presently, there is no landfill site in ... The Babylon Governorate is situated in the middle of Iraq. It covers an area of 5,315 km2 and has 2,092,998 inhabitants distributed throughout its five major cities (Qadhaa). Presently, there is no landfill site in the governorate that meets the environmental criteria for the disposal of municipal and industrial waste. Consequently, GIS (geographic information system) and methods of multi-criteria decision making were used here to select the best sites in each city in the Babylon Governorate that would fulfil the environmental requirements. Two sites were chosen in each city. As the groundwater is very shallow in this area, the design should ensure against groundwater pollution by leachate from these sites. To avoid this problem, soil investigation was conducted at these sites so that the most suitable landfill design could be accomplished. The results of soil investigation in these sites include the soil profile, groundwater depth, chemical properties, allowable bearing capacity, Atterberg limits test results and material characteristics of the soil strata. From the research, it is believed that the best design is one that puts the landfill above ground. 展开更多
关键词 Bearing capacity Atterberg limit LANDFILL BABYLON Iraq.
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