arch dam

简明释义

拱坝;

英英释义

例句

1.Engineers chose an arch dam 拱坝 design due to the steep valley walls that could support the structure effectively.

由于陡峭的山谷墙能够有效支撑结构，工程师们选择了拱坝 arch dam设计。

2.Due to its curved shape, the arch dam 拱坝 is able to withstand high water pressure efficiently.

由于其弯曲的形状，拱坝 arch dam能够有效承受高水压。

3.The government is investing in the maintenance of the arch dam 拱坝 to ensure its safety and functionality.

政府正在投资维护拱坝 arch dam以确保其安全性和功能性。

4.The arch dam 拱坝 in the national park became a popular tourist attraction for its stunning views.

国家公园里的拱坝 arch dam因其壮观的景色成为了热门旅游景点。

5.The construction of the arch dam 拱坝 was completed ahead of schedule, providing a significant boost to local hydroelectric power generation.

这座拱坝 arch dam的建设提前完成，为当地水电发电提供了显著的提升。

作文

The construction of dams has been a pivotal aspect of modern engineering, serving various purposes such as water supply, hydroelectric power generation, and flood control. Among the various types of dams, the arch dam stands out due to its unique design and structural advantages. An arch dam (拱坝) is characterized by its curved shape, which allows it to efficiently transfer the hydrostatic pressure of the water to the canyon walls. This design not only minimizes the amount of material needed for construction but also provides exceptional strength against the force of the water behind it.One of the most renowned examples of an arch dam is the Hoover Dam, located on the border between Arizona and Nevada. Completed in 1936, this monumental structure not only generates hydroelectric power but also creates Lake Mead, one of the largest artificial lakes in the United States. The Hoover Dam showcases the efficiency and durability of the arch dam design, as it has withstood the test of time and natural disasters, including earthquakes.The advantages of using an arch dam are numerous. Firstly, the curved shape allows the dam to resist the pressure exerted by the water more effectively than a straight dam would. This means that less concrete is required, making it a cost-effective option for large-scale projects. Additionally, the arch dam can be built in narrow canyons where other types of dams may not be feasible, thereby maximizing the potential locations for dam construction.However, constructing an arch dam is not without challenges. The site selection is critical; engineers must ensure that the canyon walls are strong enough to support the arch's thrust. Geological surveys and extensive planning are necessary to avoid potential failures. Furthermore, environmental considerations must be taken into account, as building a dam can significantly alter local ecosystems and water flows.In recent years, the focus on sustainable energy has brought renewed interest in arch dams. As the world seeks cleaner energy sources, hydroelectric power remains a vital component of the energy mix. The efficiency of arch dams in generating electricity makes them an attractive option for countries looking to expand their renewable energy portfolios. For instance, countries like Canada and Norway have invested heavily in hydroelectric projects utilizing arch dams, contributing to their reputation as leaders in renewable energy production.Moreover, the aesthetic appeal of arch dams cannot be overlooked. Their graceful curves often blend harmoniously with the surrounding landscape, creating stunning vistas. This visual impact has led to some arch dams becoming tourist attractions, drawing visitors who wish to witness these engineering marvels firsthand.In conclusion, the arch dam (拱坝) represents a remarkable achievement in civil engineering. Its unique design offers numerous benefits, including efficiency, strength, and adaptability to challenging terrains. As the world continues to prioritize sustainable energy solutions, the role of arch dams in hydroelectric power generation is likely to grow. With careful planning and consideration for environmental impacts, arch dams will remain a vital part of our infrastructure for generations to come.