bed scour

简明释义

河床冲刷

英英释义

例句

1.Monitoring bed scour 床蚀 is crucial for maintaining the integrity of underwater structures.

监测床蚀对于维护水下结构的完整性至关重要。

2.The river's flow caused significant bed scour 床蚀 around the bridge foundations.

河流的流动导致桥基周围出现显著的床蚀。

3.The construction of the dam resulted in unexpected bed scour 床蚀 downstream.

大坝的建设导致下游出现意想不到的床蚀。

4.To prevent bed scour 床蚀, engineers installed riprap along the banks.

为了防止床蚀，工程师在河岸上安装了石块护坡。

5.During the storm, the increased water velocity led to severe bed scour 床蚀 in the riverbed.

在暴风雨期间，水流速度的增加导致河床上严重的床蚀。

作文

In the study of river dynamics and sediment transport, one term that frequently arises is bed scour. This phenomenon refers to the erosion of the riverbed caused by the flow of water, which can significantly impact the river's morphology and ecology. Understanding bed scour is crucial for environmental scientists and engineers, as it helps in designing effective flood control measures and maintaining the health of aquatic habitats.When water flows over a riverbed, it exerts a force that can dislodge sediments. This process is known as bed scour, and it occurs when the velocity of the water exceeds a certain threshold. Factors such as water flow rate, sediment type, and riverbed shape all influence the extent of bed scour. For instance, in areas where the water flows swiftly, the likelihood of erosion increases, leading to deeper channels and altered landscapes.The implications of bed scour are manifold. On one hand, it can create new habitats for aquatic life by forming pools and riffles. These features provide refuge and breeding grounds for various species, enhancing biodiversity. On the other hand, excessive bed scour can lead to detrimental effects, such as the destabilization of riverbanks, increased sedimentation downstream, and the destruction of existing habitats. Therefore, a balance must be struck to ensure that river ecosystems remain healthy and functioning.To mitigate the adverse effects of bed scour, engineers often employ various strategies. These may include the construction of riprap (rocky material placed along riverbanks), planting vegetation to stabilize soil, or designing weirs and other structures that alter water flow patterns. Each of these methods aims to reduce the velocity of water flow and minimize the erosive power that leads to bed scour.Additionally, monitoring and modeling techniques have been developed to predict areas prone to bed scour. By utilizing advanced technologies such as remote sensing and computational fluid dynamics, researchers can assess the health of river systems and identify potential problem areas before they become critical. This proactive approach allows for timely interventions that can prevent significant ecological damage.In conclusion, bed scour is a vital concept in understanding river dynamics and managing aquatic ecosystems. Its effects can be both beneficial and harmful, depending on the context and extent of the erosion. As we continue to face challenges related to climate change, urbanization, and habitat loss, it is essential to deepen our understanding of bed scour and implement effective management strategies. By doing so, we can help preserve the integrity of our rivers and the myriad of life they support.

在河流动态和沉积物运输的研究中，常常会出现一个术语——床冲刷。这个现象指的是由于水流的作用而导致的河床侵蚀，这会显著影响河流的形态和生态。理解床冲刷对于环境科学家和工程师来说至关重要，因为它有助于设计有效的防洪措施并维护水生栖息地的健康。当水流过河床时，会施加一种力，这种力可以使沉积物脱离。这一过程被称为床冲刷，当水流的速度超过某个阈值时就会发生这种现象。水流速、沉积物类型和河床形状等因素都会影响床冲刷的程度。例如，在水流迅速的区域，侵蚀的可能性增加，从而导致更深的河道和改变的地貌。床冲刷的影响是多方面的。一方面，它可以通过形成水池和浅滩来创造新的水生栖息地。这些特征为各种物种提供了庇护和繁殖场所，增强了生物多样性。另一方面，过度的床冲刷可能导致不利影响，例如河岸不稳定、下游沉积物增加以及现有栖息地的破坏。因此，必须找到一个平衡点，以确保河流生态系统保持健康和正常运作。为了减轻床冲刷的不利影响，工程师通常会采用各种策略。这些策略可能包括修建护坡（沿河岸放置的岩石材料）、种植植被以稳定土壤，或设计坝和其他结构以改变水流模式。这些方法的目的都是减少水流的速度，最小化导致床冲刷的侵蚀力。此外，已经开发出监测和建模技术来预测容易发生床冲刷的区域。通过利用遥感和计算流体动力学等先进技术，研究人员可以评估河流系统的健康状况，并在问题变得严重之前识别潜在的麻烦区域。这种主动的方法使得及时干预成为可能，从而可以防止重大生态损害。总之，床冲刷是理解河流动态和管理水生生态系统的重要概念。根据侵蚀的背景和程度，其影响可能是有益的，也可能是有害的。随着我们继续面临气候变化、城市化和栖息地丧失等挑战，深入理解床冲刷并实施有效的管理策略至关重要。通过这样做，我们可以帮助保护河流的完整性及其所支持的丰富生命。