bar weir

简明释义

沙洲渔坝

英英释义

例句

1.During the construction of the dam, engineers installed a bar weir to monitor water levels.

在大坝的建设过程中，工程师安装了一个挡水坝来监测水位。

2.Fish ladders are often built next to a bar weir to allow fish to migrate upstream.

鱼梯通常建在挡水坝旁边，以允许鱼类向上游迁移。

3.The river's flow was controlled by a bar weir, which helped maintain the water level for irrigation.

河流的流量由一个挡水坝控制，这有助于维持灌溉所需的水位。

4.Sediment accumulation behind the bar weir can affect water quality over time.

在挡水坝后面的沉积物堆积可能会随着时间推移影响水质。

5.The bar weir creates a small pool that is perfect for recreational activities like kayaking.

这个挡水坝形成了一个小水池，非常适合皮划艇等休闲活动。

作文

The concept of a bar weir is often encountered in the field of civil engineering and hydrology. A bar weir is essentially a structure built across a river or stream to regulate water flow. This type of weir is typically constructed from a series of bars or gates, which can be adjusted to control the height of the water behind the dam. The primary purpose of a bar weir is to create a stable water level upstream, which is crucial for various applications such as irrigation, flood control, and habitat preservation for aquatic life.One of the key advantages of a bar weir is its ability to manage sediment transport effectively. Unlike traditional solid weirs, which can lead to sediment buildup on one side and erosion on the other, a bar weir allows sediments to pass through the gaps between the bars. This characteristic helps maintain the natural sediment flow within the river system, which is vital for maintaining the ecological balance of aquatic habitats.Furthermore, the design of a bar weir can be customized based on the specific requirements of the river it is placed in. Engineers can adjust the spacing and height of the bars to optimize water flow and minimize environmental impact. For instance, in areas where fish migration is a concern, a bar weir can be designed to facilitate easier passage for fish, thus promoting biodiversity in the region.In addition to ecological benefits, bar weirs play a significant role in water resource management. By controlling water levels, they help ensure a reliable supply of water for agricultural purposes. Farmers rely on consistent water availability to irrigate their crops, and a well-designed bar weir can provide the necessary support to achieve this goal. Moreover, during periods of heavy rainfall, these structures can help mitigate flooding by regulating the flow of excess water downstream.Despite the numerous advantages, there are also challenges associated with the construction and maintenance of bar weirs. Regular monitoring is essential to ensure that the bars remain clear of debris and that the structure is functioning as intended. If not properly maintained, a bar weir can become clogged, leading to unintended consequences such as increased flooding risk upstream or reduced water quality.In conclusion, the bar weir is a versatile and effective tool in water management and environmental conservation. Its unique design allows for the regulation of water flow while promoting sediment transport and supporting aquatic ecosystems. As we continue to face challenges related to climate change and water scarcity, understanding and implementing structures like the bar weir will be critical for sustainable development in the years to come.

“bar weir”这个概念通常在土木工程和水文学领域中遇到。bar weir基本上是一个建造在河流或溪流上的结构，用于调节水流。这种类型的堰通常由一系列的杆或闸门构成，可以调节以控制大坝后面水的高度。bar weir的主要目的是在上游创造一个稳定的水位，这对于灌溉、洪水控制和保护水生生物栖息地等各种应用至关重要。bar weir的一个关键优点是它能够有效管理沉积物运输。与传统的固体堰不同，后者可能导致一侧沉积物堆积而另一侧侵蚀，bar weir允许沉积物通过杆间的缝隙流过。这一特性有助于维持河流系统内的自然沉积物流动，这对维持水生栖息地的生态平衡至关重要。此外，bar weir的设计可以根据其所处河流的具体要求进行定制。工程师可以调整杆的间距和高度，以优化水流并最小化对环境的影响。例如，在鱼类迁徙受到关注的地区，bar weir可以设计得更容易让鱼类通行，从而促进该地区的生物多样性。除了生态效益外，bar weirs在水资源管理中也发挥着重要作用。通过控制水位，它们有助于确保农业用水的可靠供应。农民依靠稳定的水源来灌溉作物，而设计良好的bar weir可以提供实现这一目标所需的支持。此外，在强降雨期间，这些结构可以通过调节多余水流下游来帮助减轻洪水风险。尽管有众多优点，但建设和维护bar weirs也面临挑战。定期监测至关重要，以确保杆不被杂物堵塞，并且结构正常运作。如果维护不当，bar weir可能会被堵塞，导致意想不到的后果，例如上游洪水风险增加或水质下降。总之，bar weir是水管理和环境保护中一种多功能且有效的工具。其独特的设计允许调节水流，同时促进沉积物运输并支持水生生态系统。随着我们继续面临气候变化和水资源短缺相关的挑战，理解和实施像bar weir这样的结构将对未来可持续发展至关重要。