permanent ballast

简明释义

固定压载物

英英释义

例句

1.The construction team decided to add permanent ballast to ensure the structure's longevity.

施工队决定增加永久压载物以确保结构的耐久性。

2.Using permanent ballast can reduce the need for frequent maintenance on vessels.

使用永久压载物可以减少对船只的频繁维护需求。

3.The design of the barge included a section for permanent ballast to enhance its load capacity.

驳船的设计包括一个用于增强其载重能力的永久压载物部分。

4.The ship's stability is greatly improved by the use of permanent ballast.

通过使用永久压载物，船只的稳定性得到了很大改善。

5.In railway engineering, permanent ballast helps maintain track alignment.

在铁路工程中，永久压载物有助于保持轨道的对齐。

作文

In the world of engineering and construction, the term permanent ballast refers to materials used to provide stability and weight to structures, particularly in the context of transportation systems such as railways and ships. The concept of permanent ballast is crucial for ensuring that these systems can operate safely and efficiently under various conditions. When we think about railways, for example, the tracks must be laid on a solid foundation to prevent them from shifting or becoming misaligned due to environmental factors like weather changes or heavy loads. This is where permanent ballast comes into play.Traditionally, permanent ballast consists of crushed stone or gravel that is placed beneath and around the railway ties. This material not only supports the weight of the trains but also allows for proper drainage, which is essential in preventing water accumulation that could lead to track deformation or other structural failures. The choice of materials for permanent ballast is critical; they must be durable enough to withstand the constant pressure and movement from passing trains while also being resistant to weathering and erosion.In maritime contexts, permanent ballast plays a similarly vital role. Ships often require additional weight to maintain stability in the water, especially when they are not carrying cargo. This is where permanent ballast materials, such as concrete blocks or steel weights, are utilized. By strategically placing these materials within the hull of the vessel, engineers can ensure that the ship remains upright and balanced even in rough seas. Without adequate permanent ballast, a ship may become unstable, leading to dangerous situations at sea.Moreover, the use of permanent ballast is not limited to just railways and ships; it is also applicable in various construction projects. For instance, in building large structures like bridges or towers, permanent ballast can be used to enhance stability against strong winds or seismic activities. Engineers often calculate the necessary amount of permanent ballast required based on the specific environmental conditions and the design of the structure.The importance of permanent ballast cannot be overstated. It serves as a fundamental element in ensuring safety and functionality in transportation and construction. As technology advances, the methods and materials used for permanent ballast are also evolving. New materials that offer lighter weight and greater strength are being researched, which could lead to more efficient designs and constructions.In conclusion, the concept of permanent ballast is integral to the fields of engineering and construction. Whether in railways, ships, or large structures, permanent ballast provides the necessary stability and support needed to withstand various forces and conditions. Understanding the role and importance of permanent ballast helps us appreciate the intricate designs and calculations that go into creating safe and effective transportation systems and buildings. As we continue to innovate and improve our engineering practices, the principles surrounding permanent ballast will remain a cornerstone of successful design and construction.

在工程和建筑的世界中，术语永久压舱物指的是用于提供稳定性和重量的材料，特别是在铁路和船舶等交通系统的背景下。永久压舱物的概念对于确保这些系统在各种条件下能够安全高效地运行至关重要。当我们想到铁路时，例如，轨道必须铺设在坚固的基础上，以防止因天气变化或重载而导致轨道移动或错位。这就是永久压舱物发挥作用的地方。传统上，永久压舱物由破碎的石头或砾石组成，这些材料被放置在铁路枕木的下方和周围。这种材料不仅支撑火车的重量，还允许适当的排水，这对于防止水积聚、导致轨道变形或其他结构故障至关重要。选择永久压舱物的材料至关重要；它们必须足够耐用，以承受来自经过列车的持续压力和运动，同时还要抵抗风化和侵蚀。在海洋环境中，永久压舱物同样发挥着重要作用。船舶通常需要额外的重量来保持在水中的稳定性，尤其是在没有货物时。这就是使用永久压舱物材料的地方，如混凝土块或钢重物。通过在船体内战略性地放置这些材料，工程师可以确保船只即使在恶劣海况下也能保持直立和平衡。如果没有足够的永久压舱物，船只可能变得不稳定，从而导致海上的危险情况。此外，永久压舱物的使用并不仅限于铁路和船舶；它在各种建筑项目中也是适用的。例如，在建造大型结构如桥梁或塔楼时，可以使用永久压舱物来增强抵御强风或地震活动的稳定性。工程师通常根据特定的环境条件和结构设计计算所需的永久压舱物的数量。永久压舱物的重要性不可低估。它作为确保交通和建筑安全与功能的基本元素。随着技术的进步，用于永久压舱物的方法和材料也在不断发展。正在研究新材料，它们提供更轻的重量和更大的强度，这可能会导致更高效的设计和施工。总之，永久压舱物的概念是工程和建筑领域不可或缺的一部分。无论是在铁路、船舶还是大型结构中，永久压舱物提供了必要的稳定性和支持，以承受各种力量和条件。理解永久压舱物的作用和重要性帮助我们欣赏到创建安全有效的交通系统和建筑所需的复杂设计和计算。随着我们继续创新和改进我们的工程实践，围绕永久压舱物的原则将始终是成功设计和施工的基石。