active earth pressure

简明释义

1. 活动的地压; 2. 主动土压力; 3. 有效土压力;

英英释义

例句

1.Engineers often use specific formulas to calculate the active earth pressure 主动土压力 in different soil conditions.

工程师通常使用特定公式来计算不同土壤条件下的主动土压力 主动土压力。

2.The calculation of active earth pressure 主动土压力 is essential for ensuring safety in construction projects.

计算主动土压力 主动土压力对于确保建筑项目的安全至关重要。

3.During the design phase, we conducted tests to measure the active earth pressure 主动土压力 on the proposed wall.

在设计阶段，我们进行了测试以测量拟建墙体上的主动土压力 主动土压力。

4.The design of retaining walls must account for the active earth pressure 主动土压力 exerted by the soil behind them.

挡土墙的设计必须考虑到后方土壤施加的主动土压力 主动土压力。

5.When excavating near a foundation, it is crucial to understand the implications of active earth pressure 主动土压力 on the stability of the site.

在基础附近挖掘时，了解主动土压力 主动土压力对现场稳定性的影响至关重要。

作文

Understanding the concept of active earth pressure is essential in the field of civil engineering, particularly when designing retaining walls and other structures that interact with soil. Active earth pressure refers to the lateral pressure exerted by soil on a structure when the soil is allowed to move or deform. This condition typically occurs when the wall moves away from the soil, leading to a decrease in the pressure exerted by the soil against the wall. The concept is based on the principles of soil mechanics and is critical for ensuring the stability and safety of structures.When a retaining wall is constructed, it is essential to consider the forces acting upon it. The active earth pressure is one of the primary forces that must be accounted for during the design process. It is influenced by several factors, including the type of soil, the angle of internal friction, and the wall's inclination. Engineers often use the Rankine or Coulomb theories to estimate the magnitude of active earth pressure, which provides a simplified approach to understanding how soil behaves under different conditions.In practical applications, calculating active earth pressure involves determining the depth of the soil and the properties of the soil itself. For instance, cohesive soils exhibit different behaviors compared to granular soils. Cohesive soils tend to have higher shear strength, which can affect the overall pressure exerted on the wall. On the other hand, granular soils, such as sand, can shift more easily, leading to significant changes in pressure dynamics.The implications of active earth pressure extend beyond mere calculations. If not properly accounted for, the forces exerted by the soil can lead to structural failures, such as wall overturning or sliding. Therefore, engineers must conduct thorough site investigations and analyses to accurately predict these pressures. Additionally, they may implement various design strategies, such as using drainage systems to reduce hydrostatic pressure or employing reinforcements to enhance wall stability.Furthermore, it is crucial to recognize that active earth pressure is not a static value; it can change due to various factors, including seismic activity, changes in moisture content, or even construction activities nearby. As such, engineers must consider these dynamic conditions when designing structures that will be subjected to varying earth pressures over time.In conclusion, the concept of active earth pressure is vital for civil engineers working with soil-structure interactions. A comprehensive understanding of how this pressure develops and its influencing factors allows for safer and more effective design practices. By prioritizing the assessment of active earth pressure, engineers can mitigate risks associated with soil movement and ensure the longevity and stability of their structures. Ultimately, the careful consideration of active earth pressure contributes to the overall success of engineering projects, safeguarding both human lives and investments in infrastructure.

理解主动土压力的概念对于土木工程领域至关重要，特别是在设计挡土墙和其他与土壤相互作用的结构时。主动土压力是指土壤在允许移动或变形时施加在结构上的侧向压力。这种情况通常发生在墙体远离土壤移动时，导致土壤对墙体施加的压力降低。该概念基于土壤力学的原理，对于确保结构的稳定性和安全性至关重要。当建造挡土墙时，必须考虑施加在其上的力。主动土压力是设计过程中必须考虑的主要力之一。它受到多种因素的影响，包括土壤类型、内摩擦角和墙体的倾斜度。工程师通常使用Rankine或Coulomb理论来估算主动土压力的大小，这为理解土壤在不同条件下的行为提供了一种简化的方法。在实际应用中，计算主动土压力涉及确定土壤的深度及其特性。例如，粘性土与颗粒土的行为不同。粘性土通常具有较高的抗剪强度，这可能会影响施加在墙体上的整体压力。另一方面，颗粒土，如沙子，可以更容易地移动，从而导致压力动态的显著变化。主动土压力的影响不仅限于简单的计算。如果不加以充分考虑，土壤施加的力量可能导致结构失效，例如墙体倾覆或滑动。因此，工程师必须进行彻底的现场调查和分析，以准确预测这些压力。此外，他们可能会实施各种设计策略，例如使用排水系统来减少静水压力，或采用加固措施来增强墙体的稳定性。此外，必须认识到主动土压力并不是一个静态值；由于各种因素，它可能会变化，包括地震活动、湿度变化，甚至附近的施工活动。因此，工程师在设计将受到变化的土壤压力影响的结构时，必须考虑这些动态条件。总之，主动土压力的概念对于从事土壤-结构相互作用的土木工程师至关重要。全面理解这种压力是如何产生的及其影响因素，使得更安全和更有效的设计实践成为可能。通过优先评估主动土压力，工程师可以减轻与土壤运动相关的风险，并确保其结构的耐久性和稳定性。最终，仔细考虑主动土压力有助于工程项目的整体成功，保护人类生命和基础设施投资。