相关实验视频
Updated: Jul 3, 2025

10:35
A Protocol for Conducting Rainfall Simulation to Study Soil Runoff
Published on: April 3, 2014
20.9K
使用降雨模拟器对高强度防堵透路面 (CRP) 对下水的影响进行实验研究
Alireza Rezaei1, Hojat Karami2
1Department of Water Engineering and Hydraulic Structures, Faculty of Civil Engineering, Semnan University, Semnan, Iran
概括
高强度的抗堵塞透路面 (CRP) 有效地减少了城市的排水量. 增加CRP覆盖率可以显著降低流失系数,为减少洪水风险提供了可行的解决方案.
科学领域:
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
- 城市规划 城市规划
背景情况:
- 传统的透路面具有有限的阻力.
- 城市化增加了不透气的区域和洪水风险.
- 开发了一种新型的高强度耐堵塞透路面 (CRP).
研究的目的:
- 评估CRP模型的性能.
- 分析覆盖面,斜率和降雨强度对流水的影响.
- 提供城市透路面的设计指南.
主要方法:
- 在各种条件下模拟CRP性能.
- 覆盖范围 (A) 的变化为25%,50%,100%.
- 测试的斜率 (S) 为1%,3%,5%.
- 应用的降雨强度 (I) 从45到200毫米/小时.
主要成果:
- 在90毫米/小时降雨时增加CRP覆盖率 (50-100%),降水系数 (C) 降低了13-18%.
- 较高的斜率 (1-5%) 在覆盖层面上增加了C的3-39%.
- 较高的降雨强度通常导致较高的下水系数.
结论:
- 在CRP模型中,有效地减少了流失.
- 覆盖面和斜率是影响CRP性能的关键因素.
- 调查结果支持CRP的实施,用于城市洪水风险管理.
相关概念视频
Typical Model Studies
359
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
359
Conservation of Mass in Moving, Nondeforming Control Volume
1.1K
Stormwater detention basins are essential in managing runoff during heavy rainfall, particularly in urban areas where impervious surfaces increase the risk of flooding. Understanding the conservation of mass in these systems allows engineers to optimize basin performance, balancing inflow, outflow, and water storage.
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
In the context of a detention basin, the conservation of mass states that the total mass of water entering the basin must equal the mass leaving the basin plus any accumulation of...
1.1K
Design Example: Creating a Hydraulic Model of a Dam Spillway
169
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
169
Modeling and Similitude
267
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
267
Permeability of Concrete
145
Permeability in the context of concrete refers to how easily liquids or gases can pass through the material. This quality is crucial for assessing the water-tightness and durability of concrete structures and their resistance to chemical attacks. Concrete permeability can be determined through comparative laboratory tests. These tests typically involve sealing a concrete specimen from the sides, applying water pressure to the top surface with pressure, and measuring the amount of water passing...
145
Masonry Paving
256
The construction of masonry paving involves using materials such as bricks, stones, and concrete masonry units. These materials are chosen for their shape, color, strength, and resistance to abrasion and weathering. Masonry units can be installed dry on a thin layer of sand and a gravel base, or they can be embedded in mortar or asphalt on a concrete slab. For areas subjected to heavy vehicular loads, a rigid base layer of reinforced or unreinforced concrete is recommended. In contrast,...
256

