base course

简明释义

主航向

英英释义

例句

1.Before applying the asphalt, we need to check the thickness of the base course.

在铺设沥青之前，我们需要检查基础层的厚度。

2.The contractor laid down the base course for the new road to ensure proper drainage.

承包商铺设了新的道路的基础层以确保适当的排水。

3.We used recycled materials for the base course to make the project more sustainable.

我们使用了回收材料作为基础层，使项目更加可持续。

4.The base course must be compacted properly to support the weight of the vehicles.

为了支撑车辆的重量，必须正确压实基础层。

5.In road construction, the quality of the base course is crucial for longevity.

在道路施工中，基础层的质量对于长久性至关重要。

作文

In the field of civil engineering and construction, the term base course refers to a layer of material that is placed on top of the subgrade but beneath the surface layer of a pavement structure. This layer plays a crucial role in providing support and stability to the overall pavement system. The base course is typically composed of crushed stone, gravel, or other suitable materials that can withstand the stresses imposed by traffic loads. It acts as a foundation for the surface layer, ensuring that the pavement remains durable and functional over time.The importance of the base course cannot be overstated. It serves several key functions in a pavement structure. First, it distributes the load from the surface layer to the subgrade, preventing excessive deformation or failure of the underlying soil. A well-designed base course helps to minimize the risk of cracking and rutting in the surface layer, which can lead to costly repairs and maintenance.Moreover, the base course also contributes to drainage. Proper drainage is essential for the longevity of any pavement. When water accumulates beneath the surface layer, it can weaken the pavement and lead to structural failures. By allowing water to flow through and away from the pavement structure, the base course helps to maintain the integrity of the entire system.In addition to its structural and drainage functions, the base course can also enhance the overall performance of the pavement. For instance, the choice of materials used in the base course can affect the ride quality and noise levels of the roadway. Engineers carefully select materials that not only provide strength but also contribute to a smoother driving experience.When constructing a new road or rehabilitating an existing one, engineers must consider the design and thickness of the base course. Factors such as expected traffic loads, soil conditions, and environmental factors all play a role in determining the appropriate specifications for the base course. Inadequate design or construction of this layer can lead to premature pavement failure, resulting in increased maintenance costs and reduced service life.In conclusion, the base course is a vital component of any pavement structure. Its role in load distribution, drainage, and overall performance is essential for creating durable and reliable roadways. As civil engineers continue to innovate and improve construction techniques, the importance of properly designing and constructing the base course will remain a fundamental aspect of successful pavement engineering. Understanding the significance of the base course is crucial for anyone involved in the planning, design, or maintenance of road infrastructure, as it lays the groundwork for safe and efficient transportation systems.

在土木工程和建筑领域，术语base course指的是放置在基层之上但位于路面结构表层之下的材料层。这一层在提供支持和稳定性方面发挥着至关重要的作用。base course通常由碎石、砾石或其他适合的材料组成，能够承受交通负荷施加的压力。它作为表层的基础，确保路面随着时间的推移保持耐用和功能性。base course的重要性不容小觑。它在路面结构中执行几个关键功能。首先，它将表层的负载分散到基层，防止底土发生过度变形或失效。设计良好的base course有助于最小化表层开裂和车辙的风险，这可能导致昂贵的维修和维护。此外，base course还帮助排水。适当的排水对于任何路面的持久性至关重要。当水在表层下积聚时，会削弱路面并导致结构失效。通过允许水流动并远离路面结构，base course有助于保持整个系统的完整性。除了其结构和排水功能外，base course还可以增强路面的整体性能。例如，base course中使用的材料选择可以影响道路的行驶质量和噪音水平。工程师仔细选择不仅提供强度而且有助于更平稳驾驶体验的材料。在建设新道路或修复现有道路时，工程师必须考虑base course的设计和厚度。预期的交通负荷、土壤条件和环境因素等因素都会影响base course的适当规格。不充分的设计或施工可能导致路面过早失效，从而导致维护成本增加和使用寿命减少。总之，base course是任何路面结构的重要组成部分。它在负载分配、排水和整体性能方面的作用对于创造耐用和可靠的道路至关重要。随着土木工程师不断创新和改进施工技术，合理设计和施工base course的重要性将始终是成功路面工程的基本方面。理解base course的重要性对于任何参与道路基础设施规划、设计或维护的人来说都是至关重要的，因为它为安全和高效的交通系统奠定了基础。