coefficient of permeability

简明释义

渗透系数

英英释义

例句

1.The engineer calculated the coefficient of permeability to determine how quickly water would flow through the soil.

工程师计算了渗透系数以确定水在土壤中流动的速度。

2.The coefficient of permeability varies significantly between different types of soil.

不同类型的土壤之间渗透系数差异显著。

3.A higher coefficient of permeability indicates that the material can transmit water more easily.

更高的渗透系数表明材料能够更容易地传导水。

4.In geotechnical studies, the coefficient of permeability is crucial for assessing groundwater movement.

在岩土工程研究中，渗透系数对于评估地下水流动至关重要。

5.To design effective drainage systems, engineers must understand the coefficient of permeability of the soil.

为了设计有效的排水系统，工程师必须了解土壤的渗透系数。

作文

The study of soil mechanics is essential for understanding the behavior of soil under various conditions, especially in civil engineering projects. One crucial parameter in this field is the coefficient of permeability, which plays a significant role in determining how water moves through soil. The coefficient of permeability (渗透系数) is defined as the ease with which water can flow through the soil's pore spaces. This property is vital for engineers when designing foundations, retaining walls, and other structures that interact with groundwater.To comprehend the importance of the coefficient of permeability, we must first recognize the factors that influence it. Soil type is one of the primary determinants; for instance, coarse-grained soils like sand typically have a higher coefficient of permeability compared to fine-grained soils like clay. This difference arises because sand has larger pore spaces that allow water to flow more freely, while clay particles are smaller and more tightly packed, restricting water movement.Moreover, the coefficient of permeability is affected by soil structure and compaction. Well-compacted soils may have reduced permeability due to decreased pore space, whereas loosely packed soils can exhibit higher permeability. Understanding these variations is crucial for engineers who need to predict how quickly water will drain from a site or how much water will seep into a foundation.Another aspect to consider is the saturation level of the soil. The coefficient of permeability changes depending on whether the soil is fully saturated, partially saturated, or unsaturated. For example, unsaturated soils often have lower permeability because air occupies some of the pore spaces, preventing water from flowing easily. Engineers must take these conditions into account when assessing the potential for groundwater issues at construction sites.In practical applications, the coefficient of permeability is measured using various laboratory tests, such as constant head and falling head tests. These tests provide quantitative data that engineers can use to make informed decisions about design and construction. For instance, if a site is found to have a high coefficient of permeability, engineers might need to implement drainage systems to manage water flow effectively and prevent soil erosion or instability.Furthermore, the coefficient of permeability is not only vital for construction but also for environmental studies. It helps in understanding groundwater recharge rates and contamination spread, making it an essential factor in sustainable development practices. By evaluating the coefficient of permeability, researchers can assess the impact of land use changes on local hydrology and devise strategies to mitigate adverse effects.In conclusion, the coefficient of permeability is a fundamental concept in soil mechanics that influences various engineering and environmental practices. Its significance extends beyond construction to include ecological considerations, making it a critical parameter for both engineers and environmental scientists. As we continue to develop our infrastructure and manage our natural resources, a thorough understanding of the coefficient of permeability will be essential for ensuring safety, sustainability, and efficiency in our projects.

土壤力学的研究对于理解土壤在各种条件下的行为至关重要，特别是在土木工程项目中。其中一个关键参数是渗透系数，它在确定水如何通过土壤流动方面发挥着重要作用。渗透系数（coefficient of permeability）被定义为水通过土壤孔隙空间流动的难易程度。这个性质对于工程师在设计基础、挡土墙和其他与地下水相互作用的结构时至关重要。要理解渗透系数的重要性，我们首先必须认识到影响它的因素。土壤类型是主要决定因素之一；例如，粗粒土壤如沙子通常具有比细粒土壤如粘土更高的渗透系数。这种差异的产生是因为沙子具有较大的孔隙空间，可以让水更自由地流动，而粘土颗粒较小且更紧密地堆积，限制了水的运动。此外，渗透系数还受到土壤结构和压实度的影响。压实良好的土壤可能由于孔隙空间减少而降低渗透性，而松散的土壤则可能表现出更高的渗透性。理解这些变化对于工程师预测水将多快从工地排出或有多少水会渗入基础是至关重要的。另一个需要考虑的方面是土壤的饱和度。土壤的渗透系数会根据土壤是否完全饱和、部分饱和或不饱和而变化。例如，不饱和土壤通常具有较低的渗透性，因为空气占据了一些孔隙空间，阻碍了水的流动。工程师在评估施工现场潜在的地下水问题时，必须考虑这些条件。在实际应用中，渗透系数通过各种实验室测试进行测量，如恒水头和降水头测试。这些测试提供了定量数据，工程师可以利用这些数据做出明智的设计和施工决策。例如，如果发现某个地点的渗透系数较高，工程师可能需要实施排水系统，以有效管理水流，防止土壤侵蚀或不稳定。此外，渗透系数不仅对建筑至关重要，也对环境研究具有重要意义。它有助于理解地下水补给率和污染扩散，使其成为可持续发展实践中的一个重要因素。通过评估渗透系数，研究人员可以评估土地使用变化对当地水文的影响，并制定缓解不利影响的策略。总之，渗透系数是土壤力学中的一个基本概念，影响着各种工程和环境实践。其重要性超越了建筑，还包括生态考虑，使其成为工程师和环境科学家都必不可少的参数。随着我们继续开发基础设施和管理自然资源，对渗透系数的透彻理解将对确保我们项目的安全性、可持续性和效率至关重要。