Essays about: "railway sleeper"

Showing result 1 - 5 of 16 essays containing the words railway sleeper.

  1. 1. Data Augmentations for Improving Vision-Based Damage Detection : in Land Transport Infrastructure

    University essay from KTH/Lantmäteri – fastighetsvetenskap och geodesi

    Author : Punnawat Siripatthiti; [2023]
    Keywords : Computer Vision; Data Augmentation; Object Detection; Crack Detection; Road Damage Detection; Sleeper Defect Detection; datorseende; dataökning; objektdetektering; sprickdetektering; vägbeläggning; järnvägsslipers;

    Abstract : Crack, a typical term most people know, is a common form of distress or damage in road pavements and railway sleepers. It poses significant challenges to their structural integrity, safety, and longevity. Over the years, researchers have developed various data-driven technologies for image-based crack detection in road and sleeper applications. READ MORE

  3. 2. Railway Fastener Fault Detection using YOLOv5

    University essay from Uppsala universitet/Avdelningen för visuell information och interaktion

    Author : Alva Efraimsson; Elin Lemón; [2022]
    Keywords : Fastener Fault Detection; Object Detection; YOLOv5; Machine Learning; Railway Maintenance; Proactive Maintenance;

    Abstract : The railway system is an important part of the sociotechnical society, as it enables efficient, reliable, and sustainable transportation of both people and goods. Despite increasing investments, the Swedish railway has encountered structural and technical problems due to worn-out infrastructure as a result of insufficient maintenance. READ MORE

  4. 3. Influence of load distribution on trough bridges

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Jacob Gustafsson; [2021]
    Keywords : Bridge; Trough bridge; Concrete; Load distribution; Ballast;

    Abstract : There are approximately 4000 railway bridges in Sweden and a common construction type is the short span concrete trough bridge. With the current standards the load distribution through ballast is assumed to be uniformly distributed with a distribution slope of 2:1 according to the Swedish Administration of Transport or 4:1 according to Eurocode 1. READ MORE

  5. 4. Modeling of pore pressure in a railway embankment

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Marcus Vestman; [2018]
    Keywords : PLAXIS; Pore pressure; Railway;

    Abstract : LKAB and Trafikverket want to increase the maximum allowed axial load from 30 tons to 32,5 tons for the northern part of Malmbanan. There are ongoing investigations of the condition of the railway with the current axial load of 30 tons. The investigations do not include one of Trafikverket's concerns about the condition of the railway. READ MORE

  6. 5. Effect of axle load spreading and support stiffness on the dynamic response of short span railway bridges

    University essay from KTH/Bro- och stålbyggnad

    Author : Annelie Syk; Erik Axelsson; [2013]
    Keywords : short span railway bridges; dynamic response; finite element analysis; load spread; support stiffness; korta järnvägsbroar; dynamisk respons; analys med finita element; lastspridning; stödstyvhet;

    Abstract : In this thesis the effect of axle load spreading through ballast and the effect of support stiffness has been investigated on short span railway bridges. Two types of bridges, simply supported bridges and bridges with integrated backwalls, have been modeled with 2D beam elements. READ MORE