dry density

简明释义

干密度

英英释义

例句

1.The dry density of the compacted gravel was found to be above the required standard.

压实碎石的干密度发现高于所需标准。

2.A higher dry density often indicates better soil quality for construction.

较高的干密度通常表明土壤质量更适合建筑。

3.The soil's dry density is crucial for understanding its load-bearing capacity.

土壤的干密度对于理解其承载能力至关重要。

4.During the compaction test, we measured the dry density to ensure proper soil stabilization.

在压实测试中，我们测量了干密度以确保土壤稳定。

5.To calculate the dry density, divide the mass of the dry soil by its volume.

要计算干密度，将干土的质量除以其体积。

作文

Understanding the concept of dry density is crucial in various fields, including civil engineering, soil science, and environmental studies. Dry density refers to the mass of a material per unit volume when it is completely devoid of moisture. This property is particularly important for assessing the stability and strength of soil and other materials used in construction projects. When engineers design foundations, they must consider the dry density of the soil to ensure that it can support the weight of the structures above it.In civil engineering, the dry density of soil influences its load-bearing capacity. Different types of soil have varying dry densities, which can affect how much weight the ground can handle without collapsing. For instance, clay soils typically have a lower dry density compared to sandy soils. This difference means that buildings constructed on clay may require additional support systems to prevent settling or shifting over time.Moreover, understanding dry density is essential for environmental scientists who study soil contamination and remediation. When pollutants are introduced into the soil, their interaction with the soil's dry density can influence how quickly they spread and how effectively they can be removed. Higher dry densities may indicate more compacted soils, which could limit the movement of contaminants and make cleanup efforts more challenging.The measurement of dry density is typically conducted through laboratory tests, such as the Proctor test or the nuclear density gauge method. These tests provide engineers and scientists with valuable data about the physical properties of soil and other materials, allowing them to make informed decisions during the planning and construction processes.In conclusion, the significance of dry density extends beyond mere numbers; it plays a vital role in ensuring the safety and durability of structures we rely on every day. Whether it’s a bridge, a building, or an embankment, understanding the dry density of the materials involved is key to successful engineering and environmental management. As we continue to develop and expand our infrastructures, the importance of accurately measuring and applying the principles of dry density will only grow, highlighting the need for ongoing education and research in this critical area.

理解干密度的概念在土木工程、土壤科学和环境研究等多个领域至关重要。干密度指的是材料在完全没有水分时每单位体积的质量。这个特性对于评估用于建筑项目的土壤和其他材料的稳定性和强度特别重要。当工程师设计基础时，他们必须考虑土壤的干密度，以确保它能够支撑上面结构的重量。在土木工程中，土壤的干密度影响其承载能力。不同类型的土壤有不同的干密度，这可能会影响地面能够承受的重量而不发生坍塌。例如，粘土的干密度通常低于沙土。这种差异意味着在粘土上建造的建筑物可能需要额外的支撑系统，以防止随着时间的推移而沉降或移动。此外，理解干密度对于研究土壤污染和修复的环境科学家也至关重要。当污染物被引入土壤时，它们与土壤的干密度的相互作用可能会影响它们扩散的速度以及去除的有效性。较高的干密度可能表明土壤更加紧实，这可能限制污染物的运动，并使清理工作变得更加困难。干密度的测量通常通过实验室测试进行，例如普克托试验或核密度计法。这些测试为工程师和科学家提供了关于土壤和其他材料物理特性的宝贵数据，使他们能够在规划和建设过程中做出明智的决策。总之，干密度的重要性超越了单纯的数字；它在确保我们每天依赖的结构的安全性和耐用性方面发挥着至关重要的作用。无论是桥梁、建筑物还是堤坝，理解所涉及材料的干密度是成功工程和环境管理的关键。随着我们继续开发和扩展基础设施，准确测量和应用干密度原理的重要性只会增加，突显出在这一关键领域持续教育和研究的必要性。