subgrade

简明释义

英[ˈsʌbˌɡreɪd]美[ˈsʌbˌɡreɪd]

n. 路基；地基

英英释义

单词用法

同义词

反义词

例句

1.ABSTRACT The settlement of subgrade has a relationship to stress, strain, strength and stability of subgrade.

路基的沉降变形与路基中的应力、应变、强度和稳定性等有关。

2.The disease of subgrade in permafrost region was mainly induced by frost heaving and thawing circulation of frozen soils because of change of seasons.

多年冻土地区路基病害主要由冻土土体在季节变化条件下的冻融循环造成的。

3.In this paper the dynamic response to subgrade of highway under automobile load is researched.

本文就交通荷载作用下的公路路基动力响应问题进行了研究。

4.The settlement of subgrade has a relationship to stress, strain, strength and stability of subgrade.

路基的沉降变形与路基中的应力、应变、强度和稳定性等有关。

5.Using the test results, the stress strain behavior of the subgrade was quantitatively studied, and the causes of diseases in subgrade were analyzed.

运用试验结果定量分析了填土路基在往复列车荷载作用下应力应变反应特性，剖析了路基病害产生的原因。

6.The sedimentation of collapsible loess subgrade is a important cause which results to breakage of railway structure.

湿陷性黄土路基的沉降是导致铁路工程建筑物破坏的一个重要原因。

7.Proper drainage is essential for maintaining the integrity of the subgrade in wet climates.

在潮湿气候中，适当的排水对保持路基的完整性至关重要。

8.We need to evaluate the subgrade conditions before starting the construction of the new highway.

在开始新高速公路的建设之前，我们需要评估路基条件。

9.During the excavation, we discovered that the subgrade contained a significant amount of clay.

在挖掘过程中，我们发现路基中含有大量粘土。

10.The engineer inspected the subgrade to ensure it was properly compacted before laying the asphalt.

工程师检查了路基，以确保在铺设沥青之前它已被正确压实。

11.The contractor reported that the subgrade was too soft and needed reinforcement.

承包商报告说路基太软，需要加固。

作文

The construction of roads and highways is a complex process that involves multiple layers of materials to ensure durability and stability. One of the critical components in this process is the subgrade, which refers to the soil or material layer that serves as the foundation for the road structure. The quality of the subgrade is essential because it directly affects the performance and longevity of the pavement above it. If the subgrade is weak or unstable, it can lead to various issues such as cracking, settling, and even failure of the roadway. Therefore, engineers must conduct thorough assessments of the subgrade before any construction begins.In many cases, the subgrade is composed of natural soil, but it can also be enhanced with additional materials to improve its load-bearing capacity. For instance, if the natural soil is too soft or saturated, it may be necessary to replace or reinforce the subgrade with gravel or other aggregate materials. This process not only strengthens the subgrade but also helps with drainage, reducing the risk of water accumulation that could weaken the road over time.Moreover, the design of the subgrade must consider factors such as traffic load, climate, and local geological conditions. Engineers often use sophisticated modeling techniques to predict how the subgrade will behave under various conditions. This predictive analysis plays a significant role in ensuring that the road can withstand the stresses imposed by vehicles, especially in areas with heavy traffic.Once the subgrade has been prepared, the next layers of the road structure can be constructed. These layers typically include a base course and surface course, which work together to distribute loads and provide a smooth driving surface. However, if the subgrade is not adequately prepared, even the best materials used in the upper layers may not prevent future problems.In summary, the subgrade is a fundamental aspect of road construction that should not be overlooked. Its condition can significantly impact the overall performance and safety of the roadway. As such, proper evaluation, preparation, and reinforcement of the subgrade are crucial steps in the construction process. By investing time and resources into ensuring a robust subgrade, we can create safer and more durable roads for everyone. Ultimately, a well-prepared subgrade lays the foundation for a successful road system, highlighting the importance of this often-underestimated component in civil engineering.

道路和高速公路的建设是一个复杂的过程，涉及多层材料以确保耐久性和稳定性。这个过程中一个关键的组成部分是subgrade，它指的是作为道路结构基础的土壤或材料层。subgrade的质量至关重要，因为它直接影响到上面铺装的性能和使用寿命。如果subgrade过于薄弱或不稳定，可能会导致各种问题，如开裂、沉降甚至道路失效。因此，工程师在任何施工开始之前，必须对subgrade进行彻底评估。在许多情况下，subgrade由天然土壤构成，但也可以通过添加其他材料来增强其承载能力。例如，如果天然土壤过于软或饱和，可能需要用砾石或其他骨料材料替换或加固subgrade。这个过程不仅增强了subgrade，还帮助排水，减少了水分积聚的风险，这可能会随着时间的推移削弱道路。此外，subgrade的设计必须考虑交通负荷、气候和当地地质条件等因素。工程师通常使用复杂的建模技术来预测subgrade在各种条件下的表现。这种预测分析在确保道路能够承受车辆施加的压力方面发挥了重要作用，尤其是在交通繁忙的地区。一旦subgrade准备好，下一层的道路结构就可以建造。这些层通常包括基础层和表面层，它们共同工作以分配负荷并提供平滑的行驶表面。然而，如果subgrade没有得到充分的准备，即使是最好的上层材料也可能无法防止未来的问题。总之，subgrade是道路建设的基本方面，不应被忽视。它的状况可以显著影响整个道路的性能和安全。因此，适当的评估、准备和加固subgrade是施工过程中的关键步骤。通过投入时间和资源确保坚固的subgrade，我们可以为每个人创造更安全、更耐用的道路。最终，一个准备良好的subgrade为成功的道路系统奠定了基础，突显了这一常常被低估的土木工程组件的重要性。