coefficient of passive earth pressure

简明释义

被动土压力系数

英英释义

例句

1.The coefficient of passive earth pressure can vary based on soil type and moisture content.

被动土压力系数可以根据土壤类型和含水量而变化。

2.Understanding the coefficient of passive earth pressure is crucial for designing foundations in seismic zones.

理解被动土压力系数对于在地震区设计基础至关重要。

3.The engineer calculated the coefficient of passive earth pressure to ensure the stability of the retaining wall.

工程师计算了被动土压力系数以确保挡土墙的稳定性。

4.The safety factor was increased by adjusting the coefficient of passive earth pressure in the calculations.

通过调整计算中的被动土压力系数，安全系数得到了提高。

5.In her thesis, she discussed methods to accurately determine the coefficient of passive earth pressure for granular soils.

在她的论文中，她讨论了准确确定颗粒土的被动土压力系数的方法。

作文

The study of soil mechanics is crucial for civil engineering, particularly when designing structures that interact with the ground. One important concept in this field is the coefficient of passive earth pressure, which plays a significant role in understanding how soil behaves under various loading conditions. This coefficient helps engineers predict the lateral earth pressures exerted on retaining walls and other structures when they are subjected to lateral forces. To grasp the significance of the coefficient of passive earth pressure, we must first understand what passive earth pressure entails. Passive earth pressure occurs when soil is pushed against a structure, such as a retaining wall, due to lateral forces. This can happen when there is an increase in soil weight, such as during heavy rainfall or when additional loads are placed on the ground above. The soil's resistance to these lateral forces is what we refer to as passive earth pressure.The coefficient of passive earth pressure is essentially a numerical value that quantifies this resistance. It is influenced by several factors, including the type of soil, its density, and the angle of internal friction. Engineers use this coefficient to calculate the amount of force that a retaining wall must withstand to maintain stability. Without accurate calculations, structures could fail, leading to catastrophic consequences.In practical applications, the coefficient of passive earth pressure is often determined through empirical methods or theoretical calculations based on soil properties. For instance, the Rankine and Coulomb theories are commonly used to estimate this coefficient. These theories provide formulas that incorporate the angle of internal friction and the wall's inclination. Understanding these theories is essential for engineers to apply the coefficient of passive earth pressure effectively in their designs.Moreover, the coefficient of passive earth pressure can vary significantly depending on the conditions surrounding the retaining wall. Factors such as wall movement, drainage conditions, and soil saturation levels can all affect the passive earth pressure acting on a structure. Therefore, engineers must consider these variables when applying the coefficient in real-world scenarios. In conclusion, the coefficient of passive earth pressure is a fundamental aspect of soil mechanics that aids engineers in designing safe and effective structures. By accurately determining this coefficient, engineers can ensure that retaining walls and other structures are capable of withstanding the lateral forces exerted by the surrounding soil. As we continue to advance in civil engineering practices, a deeper understanding of concepts like the coefficient of passive earth pressure will remain vital in promoting safety and stability in our built environment.

土力学的研究对土木工程至关重要，尤其是在设计与地面相互作用的结构时。一个重要的概念是被动土压力系数，它在理解土壤在各种荷载条件下的行为中起着重要作用。这个系数帮助工程师预测当保留墙和其他结构受到侧向力时，施加在其上的侧向土压力。要理解被动土压力系数的重要性，我们必须首先了解什么是被动土压力。当土壤因侧向力而推向结构（如挡土墙）时，就会发生被动土压力。这种情况可能发生在土壤重量增加时，例如在大雨后或在地面上方施加额外负荷时。土壤对这些侧向力的抵抗就是我们所说的被动土压力。被动土压力系数本质上是一个数值，用于量化这种抵抗力。它受到多种因素的影响，包括土壤类型、密度和内摩擦角。工程师使用这个系数来计算挡土墙必须承受的力量，以保持稳定性。如果没有准确的计算，结构可能会失效，导致灾难性的后果。在实际应用中，被动土压力系数通常通过经验方法或基于土壤性质的理论计算来确定。例如，Rankine和Coulomb理论通常用于估算该系数。这些理论提供了包含内摩擦角和墙体倾斜度的公式。理解这些理论对于工程师有效应用被动土压力系数至关重要。此外，被动土压力系数可能会因挡土墙周围的条件而显著变化。墙体运动、排水条件和土壤饱和度等因素都可能影响施加在结构上的被动土压力。因此，工程师在实际场景中应用该系数时，必须考虑这些变量。总之，被动土压力系数是土力学的一个基本方面，帮助工程师设计安全有效的结构。通过准确确定这个系数，工程师可以确保挡土墙和其他结构能够承受周围土壤施加的侧向力。随着我们在土木工程实践中不断进步，对被动土压力系数等概念的深入理解将在促进我们建成环境的安全和稳定方面继续发挥重要作用。