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长江德感河段防洪工程是以防洪为主的综合性河岸整治工程,根据河工模型试验研究成果,从通航安全角度,分析工程修建后对船舶通航、港区停泊条件的影响,提出航运条件改善措施。 相似文献
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A. B. SMITH 《Water and Environment Journal》1989,3(5):478-487
In response to the requirement of the Thames Water Authority for improved efficiency on all aspects of river management in general, and the New River in particular, commitment was given to look into reducing the overall unit cost and at the same time showing an improvement in effectiveness (levels of service).
This paper shows how traditional methods of maintaining a river of this type and magnitude, with due consideration to its environments and physical constraints, can be revolutionized and brought into the 20th century by adopting the latest technology. In addition, and after executing a re-appraisal of the New River activities, quite radical changes to the existing working practices together with a change in the general attitude of the individual employees were successfully implemented. 相似文献
This paper shows how traditional methods of maintaining a river of this type and magnitude, with due consideration to its environments and physical constraints, can be revolutionized and brought into the 20th century by adopting the latest technology. In addition, and after executing a re-appraisal of the New River activities, quite radical changes to the existing working practices together with a change in the general attitude of the individual employees were successfully implemented. 相似文献
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江津几江河段整治工程是一项以防洪为主体的综合性河岸整治工程,采用数学模型与河工模型试验相结合的研究方法,采取护岸工程、挖槽等整治措施,提高了防洪能力,改善了航运条件和沿江环境。 相似文献
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以浑河沈阳城区段的五个橡胶坝工程为例,根据在不同橡胶坝坝前和坝后测取的相关水质检测数据,分别从河流的复氧、河流的泥沙、污染物的降解、河流水质等方面对浑河水环境进行了分析和研究。结果表明,浑河沈阳城区段的阶梯橡胶坝对浑河的水质改善和生态环境起到了一定作用,可为今后浑河水资源的探究提供依据。 相似文献
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《Planning》2020,(1)
The concept of "renovation and restoration" marks the transformation from urban and rural planning and construction to intensive development mode and to quality improvement stage.The environmental imbalance problem of emphasizing development and neglecting ecology in the past has become the focus of the current urban quality improvement stage.Rivers are related to the origin,development and evolution of cities,affect the layout,transportation and environment of cities,and bear the culture,economy and characteristics of cities.Taking the Linjing River of Yongchuan in Chongqing as an example and taking the concept of "renovation and restoration" as the guidance of the design of the overall environmental quality improvement of the river,this study analyzed and summarized the problems to be solved in the improvement of the environmental quality of the river based on the four river environmental impact factors of water pollution,water resource supply and demand,ecological environment and shore water waterfront type and the strategies of optimizing the aquatic environment management,constructing the ecological landscape pattern,shaping the regional cultural landscape and combining the economic development along the river were put forward in order to improve the overall environmental quality of Linjiang River and provide reference for relevant planning and design. 相似文献
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木古河已变为典型的深圳城市河流之一,现状行洪断面不足,水质污染严重,河道空间受挤压。本文通过对防洪排涝、水质改善、景观绿化工程的可行性分析,对木古河进行了综合整治建设,以达到“河畅、水清、岸绿”的效果。 相似文献