base course

简明释义

基层

英英释义

例句

1.They used gravel for the base course in the new parking lot.

他们在新停车场使用了碎石作为基础层。

2.The base course of the building must be strong enough to support the structure.

建筑物的基础层必须足够坚固，以支撑结构。

3.The engineer recommended a thicker base course to improve the road's durability.

工程师建议加厚基础层以提高道路的耐久性。

4.Before laying the asphalt, we need to prepare the base course properly.

在铺设沥青之前，我们需要正确准备基础层。

5.A well-compacted base course is essential for long-lasting pavement.

良好压实的基础层对持久的路面至关重要。

作文

In the construction industry, the term base course refers to a layer of material that serves as the foundation for a pavement structure. It is crucial in ensuring the stability and durability of the road or pavement. The base course is typically composed of crushed stone, gravel, or other aggregate materials, which provide support to the layers above it. This layer is designed to distribute the load from traffic and prevent deformation of the surface layer. Without a properly constructed base course, roads would be susceptible to cracking and failure under the weight of vehicles. The process of constructing a base course begins with site preparation. This involves clearing the area of vegetation and debris, followed by grading to create a level surface. Once the site is ready, the next step is to lay down the base course material. The thickness of this layer can vary depending on factors such as soil conditions and expected traffic loads. Generally, a thicker base course is required in areas with heavier traffic to ensure adequate support.After the material is placed, it must be compacted to increase its density and stability. Compaction is achieved using heavy machinery such as rollers or compactors, which help eliminate air pockets and create a solid foundation. Proper compaction is essential because it affects the performance of the pavement above the base course. If the base course is not adequately compacted, it can lead to settlement issues, causing cracks and potholes in the surface layer over time.Once the base course is completed, a surface layer, often made of asphalt or concrete, is applied on top. This surface layer provides the necessary traction and protection against weather elements. However, the effectiveness of the surface layer largely depends on the quality of the base course beneath it. A well-constructed base course will enhance the lifespan of the entire pavement system, reducing maintenance costs and improving safety for drivers.In conclusion, the base course is a vital component in road construction that ensures the longevity and functionality of the pavement. Understanding its role and the proper techniques for its construction can significantly impact the overall performance of transportation infrastructure. Engineers and construction teams must prioritize the quality of the base course to achieve safe and reliable roadways for the community. By investing time and resources into this foundational layer, we can build roads that withstand the test of time and traffic, ultimately benefiting everyone who uses them.

在建筑行业中，术语base course指的是作为路面结构基础的材料层。它在确保道路或路面的稳定性和耐久性方面至关重要。base course通常由碎石、砾石或其他骨料材料组成，这些材料为其上方的层提供支撑。这一层旨在分散交通负荷，并防止表面层的变形。如果没有适当构造的base course，道路将容易在车辆的重量下出现裂缝和失效。构建base course的过程始于场地准备。这涉及清除区域内的植被和杂物，接着进行整平以创建一个平坦的表面。一旦场地准备就绪，下一步是铺设base course材料。这一层的厚度可以根据土壤条件和预期交通负荷而有所不同。通常，在交通较重的地区需要更厚的base course以确保足够的支撑。材料铺设后，必须进行压实以增加其密度和稳定性。压实是通过使用重型机械如压路机或夯实机来实现的，这有助于消除空气口袋并创建坚固的基础。适当的压实至关重要，因为它会影响base course上方路面的性能。如果base course未能充分压实，可能会导致沉降问题，从而导致表面层随时间出现裂缝和坑洞。一旦base course完成，通常会在其上方施加一层表面层，表面层通常由沥青或混凝土制成。这一表面层提供必要的牵引力，并保护其免受天气因素的影响。然而，表面层的有效性在很大程度上取决于其下方base course的质量。良好构造的base course将增强整个路面系统的使用寿命，减少维护成本，提高驾驶安全性。总之，base course是道路建设中的一个重要组成部分，确保路面的耐用性和功能性。理解其作用及其构造的正确技术可以显著影响交通基础设施的整体性能。工程师和施工团队必须优先考虑base course的质量，以实现为社区提供安全可靠的道路。通过在这一基础层上投入时间和资源，我们可以建设经得起时间和交通考验的道路，最终使所有使用这些道路的人受益。