Understanding mud pumping in heavy haul railroads

了解重载铁路中的泥浆泵送

• 批准号: LP160101254
• 负责人: Prof Buddhima Indraratna
• 金额: $ 46.84万
• 依托单位: University of Technology Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-08-14 至 2022-07-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP160101254
• 关键词: Understanding; mud; pumping; heavy; haul

This project aims to examine the factors that cause mud pumping and evaluate the effectiveness of sub-surface drainage to prevent rail track instability. Fast heavy haul operations (such as loads used in mining and agriculture) impart repeated loads on the natural formation that can result in mud pumping. If the build-up of water pressure becomes excessive this can cause track failure. Through an experimental program and field study, the mechanisms of mud pumping, incorporating train loads and frequencies, will be studied, and the role of vertically installed drains will be quantified for improved practical design. The project aims to contribute to improved track longevity and reduced maintenance costs, with a corresponding boost in rail productivity.

该项目旨在检查导致泥浆抽水的因素，并评估地下排水的有效性，以防止铁轨轨道不稳定。快速沉重的牵引操作（例如采矿和农业中使用的负载）在自然形成上赋予了重复的载荷，从而导致泥浆泵送。如果水压的积聚变得过大可能会导致轨道故障。通过实验计划和现场研究，将研究泥浆泵送的机制，结合了火车负载和频率，并将量化垂直安装的排水管的作用，以改善实际设计。 该项目旨在提高轨道寿命和降低的维护成本，并提高铁路生产率。