non-cohesive material

简明释义

非聚合材料

英英释义

例句

1.In soil mechanics, non-cohesive materials (非粘性材料) are often analyzed for their drainage properties.

在土壤力学中，非粘性材料（非粘性材料）通常用于分析其排水特性。

2.The beach is made up of non-cohesive materials (非粘性材料) that can be easily eroded by waves.

海滩由非粘性材料（非粘性材料）组成，容易受到波浪的侵蚀。

3.When constructing a building, engineers must consider the stability of non-cohesive materials (非粘性材料) like gravel.

在建造建筑物时，工程师必须考虑像砾石这样的非粘性材料（非粘性材料）的稳定性。

4.Excavation in non-cohesive materials (非粘性材料) requires careful planning to avoid collapses.

在非粘性材料（非粘性材料）中进行挖掘需要仔细规划以避免坍塌。

5.Sand is a common example of non-cohesive material (非粘性材料) that can easily shift under pressure.

沙子是一个常见的非粘性材料（非粘性材料），在压力下可以轻易移动。

作文

In the field of engineering and construction, understanding the properties of various materials is crucial for ensuring the stability and durability of structures. One term that often comes up in discussions about soil and construction materials is non-cohesive material. This term refers to materials that do not stick together under pressure or when moisture is present. Examples of non-cohesive materials include sand and gravel, which are commonly used in construction projects. Unlike cohesive materials, such as clay, which can hold together due to their fine particles and water content, non-cohesive materials rely on the friction between their larger particles to maintain stability.The behavior of non-cohesive materials is significantly influenced by factors such as particle size, shape, and distribution. For instance, well-graded sand, which contains a mix of different particle sizes, tends to have better load-bearing capacity compared to poorly graded sand, where all the particles are of similar size. This is because the smaller particles can fill the voids between larger ones, creating a denser and more stable arrangement. Engineers must carefully consider these characteristics when designing foundations or retaining structures, as the use of non-cohesive materials can lead to challenges such as settlement or erosion if not properly managed.Another important aspect of non-cohesive materials is their drainage properties. Since they do not retain water like cohesive materials, non-cohesive materials allow for rapid drainage, which can be advantageous in certain situations. However, this also means that they can become unstable during heavy rainfall or flooding, as the lack of cohesion can lead to shifting and displacement. Therefore, proper drainage systems and erosion control measures are essential when working with non-cohesive materials in construction.In addition to their physical properties, the environmental impact of non-cohesive materials should also be considered. The extraction of sand and gravel from natural sources can lead to habitat destruction and changes in local ecosystems. As such, sustainable practices must be employed to minimize the negative effects of using non-cohesive materials in construction. This includes sourcing materials responsibly, recycling existing materials, and exploring alternative options such as manufactured aggregates.In conclusion, understanding non-cohesive materials is vital for engineers and builders alike. Their unique properties present both opportunities and challenges in construction projects. By recognizing the importance of particle characteristics, drainage capabilities, and environmental considerations, professionals can make informed decisions that enhance the safety and sustainability of their structures. As we continue to develop our infrastructure, a thorough comprehension of non-cohesive materials will play a key role in shaping the future of construction and engineering practices.

在工程和建筑领域，理解各种材料的特性对于确保结构的稳定性和耐久性至关重要。在关于土壤和建筑材料的讨论中，一个常见的术语是非粘性材料。这个术语指的是在压力或潮湿情况下不会粘在一起的材料。非粘性材料的例子包括沙子和砾石，这些材料在建筑项目中经常使用。与粘性材料（如粘土）不同，粘土由于其细小颗粒和水分含量能够保持在一起，而非粘性材料依赖于较大颗粒之间的摩擦力来维持稳定。非粘性材料的行为受到颗粒大小、形状和分布等因素的显著影响。例如，级配良好的沙子，包含不同颗粒大小的混合物，其承载能力通常优于级配不良的沙子，后者所有颗粒大小相似。这是因为较小的颗粒可以填充较大颗粒之间的空隙，从而形成更密集和更稳定的排列。工程师在设计基础或挡土结构时必须仔细考虑这些特性，因为使用非粘性材料如果管理不当，可能导致沉降或侵蚀等问题。非粘性材料的另一个重要方面是其排水特性。由于它们不像粘性材料那样保留水分，非粘性材料允许快速排水，这在某些情况下是有利的。然而，这也意味着在大雨或洪水期间，它们可能变得不稳定，因为缺乏粘性可能导致位移和移动。因此，在与非粘性材料进行建筑工作时，必须采取适当的排水系统和侵蚀控制措施。除了物理特性外，还应考虑非粘性材料对环境的影响。从自然来源提取沙子和砾石可能导致栖息地破坏和当地生态系统的变化。因此，必须采用可持续实践，以尽量减少在建筑中使用非粘性材料的负面影响。这包括负责任地采购材料、回收现有材料以及探索替代选项，如制造骨料。总之，理解非粘性材料对于工程师和建筑商而言至关重要。它们独特的特性在建筑项目中既带来了机会，也带来了挑战。通过认识到颗粒特性、排水能力和环境考虑的重要性，专业人士可以做出明智的决策，从而增强其结构的安全性和可持续性。随着我们继续发展基础设施，对非粘性材料的透彻理解将在塑造未来建筑和工程实践中发挥关键作用。