overflow weir

简明释义

溢劣

英英释义

例句

1.The overflow weir is crucial for maintaining water levels in the irrigation canal.

在灌溉渠道中，溢流堰对于维持水位至关重要。

2.During the construction, workers had to ensure the overflow weir was properly aligned.

在施工过程中，工人必须确保溢流堰的正确对齐。

3.The design of the dam includes an overflow weir to manage excess water during heavy rainfall.

大坝的设计包括一个溢流堰以在大雨期间管理多余的水。

4.When the reservoir reaches its capacity, the water flows over the overflow weir to prevent flooding.

当水库达到容量时，水会流过溢流堰以防止洪水。

5.Engineers installed a new overflow weir to improve the drainage system in the park.

工程师安装了一个新的溢流堰以改善公园的排水系统。

作文

In the realm of civil engineering and water management, structures are designed to control the flow of water and prevent flooding. One such crucial structure is the overflow weir, which plays a significant role in managing excess water in reservoirs, dams, and canals. An overflow weir (溢流堰) is essentially a barrier that allows water to flow over its top when the water level rises beyond a certain point. This mechanism is vital for maintaining the safety and integrity of water bodies, particularly during periods of heavy rainfall or snowmelt.The design of an overflow weir is critical to its functionality. Engineers must consider various factors, including the expected maximum water levels, the flow rate, and the structural materials used. Typically, overflow weirs are constructed from concrete or stone, providing durability and resistance to erosion caused by flowing water. The shape and height of the weir can also vary, depending on the specific requirements of the site and the volume of water it needs to handle.One of the primary benefits of an overflow weir is its ability to regulate water levels in a controlled manner. By allowing excess water to spill over, it prevents the risk of overtopping, which can lead to catastrophic failures of dams or levees. This overflow mechanism not only protects infrastructure but also helps maintain ecological balance by ensuring that downstream environments receive adequate water flow.Moreover, overflow weirs are often integrated with other water management systems, such as spillways and sluice gates, to enhance their effectiveness. For instance, during extreme weather events, the combination of these structures can significantly reduce the risk of flooding. Additionally, overflow weirs can be designed to capture and redirect excess water for irrigation or other uses, thus maximizing the utility of water resources.In practice, the implementation of an overflow weir requires careful planning and consideration of environmental impacts. Engineers must evaluate the potential effects on local wildlife and ecosystems, ensuring that the design does not disrupt natural habitats. Community input is also valuable, as local residents may have insights into historical water levels and flooding patterns that can inform the design process.In summary, the overflow weir (溢流堰) is an essential component of modern water management systems. Its ability to control water levels and prevent flooding not only protects human infrastructure but also supports ecological health. As climate change continues to impact weather patterns, the importance of effective water management solutions like overflow weirs will only increase. Engineers and planners must continue to innovate and adapt their designs to meet the challenges posed by a changing environment, ensuring that communities remain safe and resilient in the face of natural disasters.