basal shear stress

简明释义

底面剪应力;

英英释义

例句

1.The calculation of basal shear stress 基底剪切应力 helps engineers design more effective drainage systems.

计算基底剪切应力帮助工程师设计更有效的排水系统。

2.The study of glacier dynamics often involves measuring the basal shear stress 基底剪切应力 at the ice-bed interface.

冰川动力学的研究通常涉及测量冰床界面的基底剪切应力。

3.Understanding basal shear stress 基底剪切应力 is crucial for predicting the flow rate of glaciers.

理解基底剪切应力对预测冰川流动速率至关重要。

4.In sediment transport studies, basal shear stress 基底剪切应力 plays a key role in determining sediment movement.

在沉积物输送研究中，基底剪切应力在确定沉积物运动方面起着关键作用。

5.Researchers use satellite imagery to estimate the basal shear stress 基底剪切应力 beneath Antarctic ice sheets.

研究人员使用卫星图像来估计南极冰盖下的基底剪切应力。

作文

Understanding the concept of basal shear stress is essential in various fields, including geology, engineering, and environmental science. Basal shear stress refers to the stress that acts parallel to the base of a material, particularly in the context of fluid mechanics and sediment transport. It plays a crucial role in determining how materials, such as ice or sediment, move and interact with their underlying surfaces. In glaciers, for instance, the basal shear stress affects the movement of ice over bedrock, influencing the dynamics of glacial flow and the erosion of landscapes beneath them.In civil engineering, understanding basal shear stress is vital for designing stable structures. When constructing buildings or bridges, engineers must account for the forces that act upon the foundations. If basal shear stress exceeds the strength of the materials used, it can lead to structural failure. Therefore, engineers conduct thorough assessments of soil and rock properties to ensure that the basal shear stress remains within safe limits.Moreover, in the study of rivers and streams, basal shear stress plays a significant role in sediment transport and riverbed morphology. The interaction between flowing water and the riverbed generates shear stress, which can mobilize sediment particles. This process is critical for understanding river dynamics and predicting changes in river morphology over time. By analyzing basal shear stress, scientists can better understand how rivers shape their environments and the implications for ecosystems and human activities.Furthermore, basal shear stress is also relevant in the field of climate change research. As glaciers melt due to rising temperatures, the basal shear stress at the interface between the glacier and the ground can change significantly. This alteration can affect the rate of glacial retreat and the subsequent impact on sea-level rise. Researchers are increasingly focused on measuring and modeling basal shear stress to predict future changes in glacial dynamics and their broader environmental consequences.In summary, the concept of basal shear stress is multifaceted and integral to our understanding of various natural and engineered systems. Whether it is in the movement of glaciers, the stability of structures, the dynamics of rivers, or the impacts of climate change, recognizing and measuring basal shear stress enables scientists and engineers to make informed decisions and predictions. As we continue to explore and understand our world, the importance of basal shear stress will only grow, highlighting the interconnectedness of physical processes and human activity.

理解基底剪切应力的概念在地质学、工程学和环境科学等多个领域中至关重要。基底剪切应力是指作用于材料底部平行方向的应力，特别是在流体力学和沉积物运输的背景下。它在决定冰或沉积物等材料如何移动以及如何与其下方表面相互作用方面起着至关重要的作用。例如，在冰川中，基底剪切应力影响冰层在基岩上的运动，从而影响冰川流动的动态以及其下方景观的侵蚀。在土木工程中，理解基底剪切应力对于设计稳定的结构至关重要。在建造建筑物或桥梁时，工程师必须考虑作用于基础的力。如果基底剪切应力超过所用材料的强度，可能导致结构失效。因此，工程师会对土壤和岩石特性进行彻底评估，以确保基底剪切应力保持在安全范围内。此外，在河流和溪流的研究中，基底剪切应力在沉积物运输和河床形态学中也起着重要作用。流动水与河床之间的相互作用产生剪切应力，这可以使沉积物颗粒动员。这个过程对于理解河流动态和预测河流形态随时间变化至关重要。通过分析基底剪切应力，科学家们可以更好地理解河流如何塑造其环境，以及对生态系统和人类活动的影响。此外，基底剪切应力在气候变化研究中也相关。随着气温上升，冰川因融化而导致的基底剪切应力在冰川与地面之间的界面上可能会发生显著变化。这种变化可能影响冰川后退的速度以及对海平面上升的后续影响。研究人员越来越关注测量和建模基底剪切应力，以预测未来冰川动态的变化及其更广泛的环境后果。总之，基底剪切应力的概念是多方面的，对于我们理解各种自然和工程系统至关重要。无论是在冰川运动、结构稳定性、河流动态还是气候变化影响中，认识和测量基底剪切应力使科学家和工程师能够做出明智的决策和预测。随着我们继续探索和理解我们的世界，基底剪切应力的重要性只会增加，突显出物理过程与人类活动之间的相互联系。