prestressed concrete dam

简明释义

预应力混凝土坝

英英释义

例句

1.The prestressed concrete dam was designed to withstand extreme weather conditions.

这座预应力混凝土大坝的设计能够承受极端天气条件。

2.The maintenance of the prestressed concrete dam is crucial for ensuring its longevity.

对预应力混凝土大坝的维护对于确保其长期使用至关重要。

3.Engineers conducted extensive research before selecting the prestressed concrete dam as the best option.

工程师们在选择预应力混凝土大坝作为最佳选项之前进行了广泛的研究。

4.The engineers decided to build a new prestressed concrete dam to improve water management in the region.

工程师们决定建造一座新的预应力混凝土大坝以改善该地区的水管理。

5.During the construction of the prestressed concrete dam, safety protocols were strictly followed.

在预应力混凝土大坝的建设过程中，严格遵循安全规程。

作文

The construction of a prestressed concrete dam is a remarkable feat of engineering that plays a crucial role in modern infrastructure. A prestressed concrete dam (预应力混凝土坝) utilizes high-strength concrete and steel tendons to withstand the immense forces exerted by water. This innovative design allows for thinner structures, which not only reduces material costs but also minimizes the environmental impact of construction. One of the key advantages of a prestressed concrete dam is its ability to resist cracking under pressure. Unlike traditional concrete, which can develop fissures when subjected to tensile stress, prestressing the concrete helps maintain its integrity even when faced with significant loads. This characteristic is vital for dams, as they are constantly under pressure from the water they hold back.The process of constructing a prestressed concrete dam involves several steps. Initially, engineers design the dam based on site-specific conditions, including geological surveys and hydrological studies. Once the design is finalized, the construction begins with the installation of steel tendons. These tendons are placed in the concrete before it is poured, and once the concrete has cured, the tendons are tensioned. This tensioning process compresses the concrete, allowing it to better withstand the forces of the water.Another important aspect of a prestressed concrete dam is its durability. The materials used in its construction are designed to endure harsh environmental conditions, including extreme temperatures and exposure to water. This longevity means that prestressed concrete dams require less maintenance over time compared to traditional dams, making them a cost-effective solution for water management.In addition to their structural benefits, prestressed concrete dams also offer significant advantages in terms of water management and energy production. Many of these dams are equipped with hydroelectric power plants, harnessing the energy of flowing water to generate electricity. This renewable energy source is essential in the fight against climate change, providing clean power to communities while reducing reliance on fossil fuels.Furthermore, prestressed concrete dams contribute to flood control and irrigation. By regulating water flow, these structures help prevent flooding in downstream areas during heavy rainfall. Additionally, they store water for agricultural purposes, ensuring that farmers have access to the necessary resources for crop production, even during dry spells.Despite their many advantages, the construction of a prestressed concrete dam is not without challenges. Environmental concerns often arise during the planning stages, as large-scale dam projects can disrupt local ecosystems and displace communities. Therefore, it is essential for engineers and project managers to engage with stakeholders and conduct thorough environmental assessments before proceeding with construction.In conclusion, a prestressed concrete dam (预应力混凝土坝) represents a significant advancement in civil engineering, combining strength, durability, and efficiency. As the world continues to grapple with water scarcity and the impacts of climate change, the importance of such structures will only grow. By investing in innovative designs like the prestressed concrete dam, we can ensure a sustainable future for our water resources and energy needs.

预应力混凝土坝的建设是一项了不起的工程壮举，在现代基础设施中发挥着至关重要的作用。预应力混凝土坝利用高强度混凝土和钢筋 tendon 来承受水所施加的巨大力量。这种创新设计使得结构可以更薄，不仅减少了材料成本，还最小化了施工对环境的影响。预应力混凝土坝的一个关键优势是其抵抗压力开裂的能力。与传统混凝土不同，传统混凝土在受到拉伸应力时可能会出现裂缝，而预应力混凝土则通过预应力保持其完整性，即使在面临重大负荷时。这一特性对于大坝至关重要，因为它们始终承受着来自水体的压力。建造预应力混凝土坝的过程涉及几个步骤。首先，工程师根据现场特定条件（包括地质勘测和水文研究）设计大坝。一旦设计最终确定，施工便开始进行，首先安装钢筋 tendon。这些 tendon 在混凝土浇筑之前放置，一旦混凝土固化，就会对 tendon 进行张紧。这个张紧过程压缩混凝土，使其更好地承受水的力量。预应力混凝土坝的另一个重要方面是其耐久性。用于建设的材料旨在经受严酷的环境条件，包括极端温度和水的侵蚀。这种耐久性意味着，与传统大坝相比，预应力混凝土坝在时间上需要的维护较少，从而使其成为水资源管理的经济有效解决方案。除了结构上的好处，预应力混凝土坝在水资源管理和能源生产方面也提供了显著的优势。许多这些大坝都配备了水电站，利用流动水的能量发电。这种可再生能源在应对气候变化的斗争中至关重要，为社区提供清洁电力，同时减少对化石燃料的依赖。此外，预应力混凝土坝有助于洪水控制和灌溉。通过调节水流，这些结构帮助防止在暴雨期间下游地区的洪水。此外，它们储存水资源以供农业使用，确保农民在干旱时期也能获得必要的作物生产资源。尽管有许多优点，建造预应力混凝土坝并非没有挑战。在规划阶段，环境问题常常浮出水面，因为大规模的大坝项目可能会破坏当地生态系统并使社区搬迁。因此，工程师和项目经理在进行施工之前，与利益相关者进行沟通并进行全面的环境评估至关重要。总之，预应力混凝土坝代表了土木工程的重大进步，结合了强度、耐久性和效率。随着世界继续应对水资源短缺和气候变化的影响，此类结构的重要性只会增加。通过投资于像预应力混凝土坝这样的创新设计，我们可以确保水资源和能源需求的可持续未来。