Course detail

Railway Structures 1

FAST-BN001Acad. year: 2018/2019

Railway track geometry components and alignment, rail track gauge, cant and twist, horizontal and vertical track alignment, track alignment design parameters for operation of tilting body trains
Geodetic surveying of track layout, track layout optimization problems, geodetic layout and fixing of rail track alignment.
Clearances. The centre line distances in open track and in railway stations. Routing of railway lines, railway track design.
Subdivision and construction of rail substructure and its construction layers – basic terms. Ballast bed and formation – bearing capacity, stress distribution, types and design of railway substructure, construction layers.

Department

Institute of Railway Structures and Constructions (ZEL)

Learning outcomes of the course unit

A student acquires skills in railway track geometry components and alignment, i.e. limits of particular track geometry parameters, design of track horizontal and vertical alignment and design of track geometry parameters for tilting train units. The student is introduced to the assessment of deviations of track geometry parameters during construction works and acceptance process or operation and maintenance. The student acquires skills in track spatial arrangements – clearances and track axes distances. The student is introduced to track design generally and subdivision and construction of rail substructure and its arrangement.

Prerequisites

Geodesy in Civil Engineering, coordinate systems, geodetic computations, measurement of directions and angles, distance measurements, height systems, height measurements, setting out of buildings, roads and railways, maps Soil mechanics, classification of soils for engineering purposes, shear strength of soils, stresses in soils. Strength and elasticity of materials, basic principles of structural mechanics. Basic terms, division of railway structures. Track alignment design parameters and its spatial position – basic terms.

Co-requisites

Elementary theoretic knowledges of physic: waves and acoustics, thermics, thermal conduction. Basic laws of mechanics -the principle of the virtual work and the principle of minimum of potential energy.

Recommended optional programme components

A student can attend conferences, workshops or excursions focused on railway structures.

Recommended or required reading

Not applicable.

Planned learning activities and teaching methods

Teaching is kept in a form lectures, seminars and individual consultations. The students' work is completed by specified individual work, work assigned for individual study with the active participation of students and students' work with LMS Moodle. Excursions to the construction sites or to manufacturers are organized.

Assesment methods and criteria linked to learning outcomes

The course is completed with a credit and exam. The exam a student answers questions regarding the design of track geometry parameters.
A credit acquisition is conditional on attendance, submitting calculations focused on the design of track geometry parameters and delivery of two projects - design of a section of double track line and study of railway line, successful completion of a written test.

Language of instruction

Czech

Work placements

Not applicable.

Course curriculum

1. Railway track geometry components and track alignment design parameters within operation speed 160 km/h. Rail track gauge and gauge widening.
2. Cant, distance-related cant gradient, time-related cant gradient, cant deficiency.
3. Horizontal track alignment. Transition curves.
4. Nonlinear transition curves.
5. Compound curves. Transition curves connecting two circular curves. Reverse curves.
6. Vertical track alignment, gradients, vertical curves.
7. Track alignment design parameters for operation of tilting body trains.
8. Routing of railway lines, railway track design.
9. Geodetic surveying of track layout, track layout optimization problems.
10. Geodetic layouts and fixing of rail track alignment.
11. Clearances. The centre line distances in open track and in railway stations.

Aims

The objective of the subject is to introduce students to the problems of railway track geometry components and alignment, railway track design and subdivision and construction of rail substructure and its construction layers and to practise acquires knowledge and skills.

Specification of controlled education, way of implementation and compensation for absences

Extent and forms are specified by guarantor’s regulation updated for every academic year.

Classification of course in study plans

  • Programme B-K-C-SI (N) Bachelor's

    branch K , 3. year of study, summer semester, 4 credits, compulsory

  • Programme B-P-E-SI (N) Bachelor's

    branch K , 3. year of study, summer semester, 4 credits, compulsory

  • Programme B-P-C-SI (N) Bachelor's

    branch K , 3. year of study, summer semester, 4 credits, compulsory

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Syllabus

1. Railway track geometry components and track alignment design parameters within operation speed 160 km/h. Rail track gauge and gauge widening.
2. Cant, distance-related cant gradient, time-related cant gradient, cant deficiency.
3. Horizontal track alignment. Transition curves.
4. Nonlinear transition curves.
5. Compound curves. Transition curves connecting two circular curves. Reverse curves.
6. Vertical track alignment, gradients, vertical curves.
7. Track alignment design parameters for operation of tilting body trains.
8. Routing of railway lines, railway track design.
9. Geodetic surveying of track layout, track layout optimization problems.
10. Geodetic layouts and fixing of rail track alignment.
11. Clearances. The centre line distances in open track and in railway stations.

seminars

26 hours, compulsory

Teacher / Lecturer

Syllabus

1. Rail track gauge and gauge widening
2. Cant, distance-related cant gradient, time-related cant gradient, cant deficiency. Specifying of design of a section double track line.
3. Calculations of track layout of a circle curve with transition curves
4. Compound curves. Transition curves connecting two circular curves. Reverse curves.
5. Vertical track alignment
6. Drawings elaboration
7. Submitting of design of section of double track line. Specifying of study of railway line.
8. Written test
9. Evaluation of track design variants.
10. Drawings and report elaboration
11. Submitting of study of section of railway line, credit.