Laboratory wave generator for studying wave impacts on retaining walls

用于研究波浪对挡土墙影响的实验室波浪发生器

• 批准号: RTI-2019-00754
• 负责人: Lacey, Jay
• 金额: $ 8.18万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=656286
• 关键词: Laboratory; wave; generator; studying; impacts

A wave generator (wavemaker) and associated software are requested. The system consists of: a piston and paddle to generate the waves at the upstream end of the flume; wave gauges installed in the paddle and along the flume to measure wave height; and controlling hardware and software. Two research axes will be supported by the requested equipment: 1) investigation of wave impacts on retaining walls; and 2) retaining wall behaviour induced by dynamic loads. Research Axis 1 focusses on both physical and numerical experiments involving wave impacts on retaining walls (seawalls). The wavemaker will be used to perform physical experiments on optimized retaining wall geometries and produce essential validation data for the numerical solutions. Research Axis 2 focusses on the determination of dynamic lateral earth pressure coefficients. Dynamic loads will be applied by water waves on the instrumented retaining wall, which will allow for the determination of these coefficients.******For the research community, the results of the proposed research will provide innovative methods for optimizing retaining walls affected by waves, as well as, providing much needed dynamic lateral earth pressure coefficients. For the greater community, the results will be of great benefit for municipalities and governmental organizations who manage infrastructure on Canada's coastlines. For example, the Quebec Ministry of Transport has ongoing problems associated with coastal erosion of roads and has identified 34 km of roads that are in imminent danger of erosion. Due to climate change, the Ministry predicts that by the year 2100, over one hundred km of roads will be exposed due to costal erosion. The outcomes from the research activities enabled by the requested wavemaker, will directly lead to optimized retaining wall geometries, which will mitigate the erosive effects of wave action. Thus, the outcomes will have great monetary and public safety benefits for Canada and elsewhere. **

需要一个造波器（造波器）和相关软件。该系统包括：在水槽的上游端产生波浪的活塞和桨;安装在桨内和沿着水槽测量波高的波浪计;以及控制硬件和软件。所要求的设备将支持两个研究方向：1）调查波浪对挡土墙的影响; 2）动态荷载引起的挡土墙行为。研究轴1侧重于物理和数值实验，涉及波浪对挡土墙（海堤）的影响。造波机将用于对优化的挡土墙几何形状进行物理实验，并为数值解提供必要的验证数据。研究轴2的重点是确定动态侧土压力系数。动态荷载将通过水波施加在装有仪表的挡土墙上，这将允许确定这些系数。**对于研究界来说，拟议研究的结果将为优化受波浪影响的挡土墙提供创新方法，并提供急需的动态侧土压力系数。对于更大的社区来说，研究结果将对管理加拿大海岸线基础设施的市政当局和政府组织大有裨益。例如，魁北克交通部一直面临着与公路海岸侵蚀有关的问题，并已查明有34公里的公路面临着迫在眉睫的侵蚀危险。 由于气候变化，该部预测，到2100年，超过100公里的道路将因海岸侵蚀而暴露在外。所要求的造波机所实现的研究活动的结果将直接导致优化的挡土墙几何形状，这将减轻波浪作用的侵蚀效应。因此，这些结果将为加拿大和其他地方带来巨大的货币和公共安全利益。 **