overflow dam

简明释义

溢劣

英英释义

例句

1.During the storm, the overflow dam 溢洪道 played a crucial role in preventing flooding in nearby towns.

在暴风雨期间，overflow dam 溢洪道在防止附近城镇洪水方面发挥了关键作用。

2.The overflow dam 溢洪道 is essential for controlling water levels in the reservoir.

这个overflow dam 溢洪道对于控制水库的水位至关重要。

3.The construction of the overflow dam 溢洪道 was completed ahead of schedule, ensuring safety for the community.

这个overflow dam 溢洪道的建设提前完成，确保了社区的安全。

4.The engineers designed the overflow dam 溢洪道 to manage excess water during heavy rainfall.

工程师们设计了这个overflow dam 溢洪道以应对大雨时的多余水量。

5.Local authorities monitored the overflow dam 溢洪道 closely to prevent any potential disasters.

当地当局密切监测这个overflow dam 溢洪道以防止任何潜在灾害。

作文

The concept of an overflow dam is crucial in the field of civil engineering and environmental management. An overflow dam is a type of dam designed to allow excess water to flow over its top, ensuring that the water level behind the dam does not exceed a predetermined limit. This mechanism is essential for preventing flooding and maintaining the structural integrity of the dam itself. In this essay, I will explore the significance of overflow dams, their design, and their impact on surrounding ecosystems.Firstly, the primary function of an overflow dam is to manage water levels in rivers and reservoirs. During periods of heavy rainfall or snowmelt, water levels can rise rapidly, posing a risk of overflow and potential flooding downstream. By allowing excess water to spill over, an overflow dam acts as a safety valve, protecting communities and agricultural land from catastrophic flooding. This is particularly important in regions prone to extreme weather events, where the consequences of flooding can be devastating.Moreover, the design of an overflow dam is engineered to handle significant volumes of water. Engineers must calculate the maximum expected flow and design the dam's spillway accordingly. The spillway is the part of the dam where water flows over during overflow conditions. It must be wide and deep enough to accommodate high flows without causing erosion or damage to the dam structure. Additionally, the materials used in constructing an overflow dam are selected for their durability and ability to withstand the forces exerted by large volumes of water.Beyond flood control, overflow dams play a role in water resource management. They can help regulate water supply for irrigation, drinking water, and industrial use. By controlling the flow of water, these dams ensure that there is a consistent supply available during dry periods. This is especially critical in arid regions where water scarcity can severely impact agriculture and local economies.However, the construction and operation of overflow dams also have ecological implications. When water is allowed to overflow, it can alter the natural flow of rivers and affect aquatic life. Fish and other wildlife depend on consistent water levels and flow rates for their survival. Therefore, environmental assessments are necessary before building an overflow dam to mitigate potential negative impacts on local ecosystems. Strategies such as fish ladders or bypass systems can be implemented to help aquatic species navigate around the dam and maintain biodiversity.In conclusion, overflow dams are vital structures that serve multiple purposes, including flood control, water resource management, and ecological balance. Understanding their design and function is essential for engineers, environmentalists, and policymakers alike. As climate change continues to impact weather patterns and water availability, the role of overflow dams will likely become even more significant in managing our precious water resources and protecting communities from the threats of flooding. Proper planning and consideration of ecological impacts will ensure that these dams fulfill their intended purpose while preserving the health of our natural environments.

“溢流坝”的概念在土木工程和环境管理领域至关重要。“溢流坝”是一种设计用于允许多余水流过其顶部的坝，以确保坝后面的水位不会超过预定限度。这一机制对于防止洪水和维护大坝本身的结构完整性至关重要。在本文中，我将探讨“溢流坝”的重要性、设计及其对周围生态系统的影响。首先，“溢流坝”的主要功能是管理河流和水库中的水位。在降雨或融雪期间，水位可能会迅速上升，造成溢流和下游潜在洪水的风险。通过允许多余的水溢出，“溢流坝”充当了安全阀，保护社区和农业用地免受灾难性洪水的影响。这在容易发生极端天气事件的地区尤为重要，因为洪水的后果可能是毁灭性的。此外，“溢流坝”的设计旨在处理大量水流。工程师必须计算最大预期流量，并相应地设计坝的溢洪道。溢洪道是坝的部分，当发生溢流时，水会在此流出。它必须足够宽和深，以容纳高流量，而不会导致侵蚀或损坏坝结构。此外，在建造“溢流坝”时所使用的材料被选择为耐用且能够承受大水流施加的力量。除了防洪外，“溢流坝”在水资源管理中也发挥着作用。它们可以帮助调节灌溉、饮用水和工业用水的供应。通过控制水流，这些坝确保在干旱时期有稳定的供应可用。这在水资源稀缺的干旱地区尤其关键，因为水资源短缺可能严重影响农业和地方经济。然而，“溢流坝”的建设和操作也对生态产生影响。当水被允许溢出时，它可能改变河流的自然流动并影响水生生物。鱼类和其他野生动物依赖于稳定的水位和流速来生存。因此，在建造“溢流坝”之前，需要进行环境评估，以减轻对当地生态系统的潜在负面影响。可以实施鱼道或旁路系统等策略，以帮助水生物种绕过大坝并维持生物多样性。总之，“溢流坝”是重要的结构，具有多种用途，包括防洪、水资源管理和生态平衡。理解它们的设计和功能对工程师、环保人士和政策制定者都至关重要。随着气候变化继续影响天气模式和水资源可用性，“溢流坝”的作用在管理我们宝贵的水资源和保护社区免受洪水威胁方面可能变得更加重要。适当的规划和对生态影响的考虑将确保这些坝实现其预期目的，同时保护我们自然环境的健康。