Course detail

Railway Constructions I

FAST-CN01Acad. year: 2024/2025

Wheel – rail interface, wheelset and track dimensions, equivalent conicity, lateral movement of wheelset on straight track
Wheel – rail contact stresses, Hertz theory, adhesion and adhesion force, train resistances
Vehicle in curve, Vogel theory, Heumann theory, forces on wheelset, derailment condition
Track loads, vertical, lateral and longitudinal forces, influence of higher operation speed
Static track design, rail stresses, sleeper stresses, vertical stresses on ballast bed and formation, computer models
The rail, manufacturing, welding, testing and acceptance, rail failures, rail grinding
Switches and crossing, types, turnout parts. Geometry of set of switches and common crossings. Manufactured types and notation.
The single turnout, stock rail, switch rail (blade), common and crossings, sleepers, fastenings systems. Operating and locking systems. Crossings and slip points.
Turnout collections. Cross overs, junctions, sets of turnouts. Turnouts in curves.
High speed turnouts, development of new turnouts structures.

Language of instruction

Czech

Number of ECTS credits

4

Mode of study

Not applicable.

Guarantor

doc. Ing. Otto Plášek, Ph.D.

Department

Institute of Railway Structures and Constructions (ZEL)

Entry knowledge

Track alignment design parameters and its spatial positions, railway track design.
Railway substructure, subdivision and construction of rail substructure and its construction layers, construction and shape of earth formation
Railway superstructure and modern railway structure design

Rules for evaluation and completion of the course

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

Aims

The objective of the subject is to introduce students to the problems of interaction between railway vehicle and track, static track design, switches, crossings and turnouts and to practise acquires knowledge and skills.
A student acquires skills in interaction between railway vehicle and track, static track design, switches, crossings and turnouts.

Study aids

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Klimeš, F.: Železniční stavitelství II. SNTL Praha, 1981. (CS)
Tyc, Kubát, Dostál, Havíř: Železniční stavby. Dh Press, Bratislava, 1993. (CS)
Esveld, C.: Modern Railway Track. MRT-Productions, Delft, 2001. (EN)
Lichtberger, B.: Handbuch Gleis. Unterbau, Oberbau, Instandhaltung, Wirtschaftlichkeit.. Tetzlaff Verlag Hamburg, 2003. (DE)

Recommended literature

Markku Nummelin: Railway Turnouts. Finnish Rail Administration, 2003. (EN)
kol.: Wheel/Rail Safety. Blackwell Publishing, 2003. (EN)

Type of course unit

 

Lecture

26 hod., optionally

Teacher / Lecturer

doc. Ing. Otto Plášek, Ph.D.

Syllabus

1. Wheel – rail interface, wheelset and track dimensions, equivalent conicity, lateral movement of wheelset on straight track 2. Wheel – rail contact stresses, Hertz theory, adhesion and adhesion force, train resistances 3. Vehicle in curve, Vogel theory, Heumann theory, forces on wheelset, derailment condition. 4. Track loads, vertical, lateral and longitudinal forces, influence of higher operation speed 5. Static track design, rail stresses, sleeper stresses, vertical stresses on ballast bed and formation, computer models 6. The rail, manufacturing, welding, testing and acceptance. 7. Rail failures, rail grinding. 8. Switches and crossing, types, turnout parts. 9. Geometry of set of switches and common crossings. Manufactured types and notation. 10. The single turnout, stock rail, switch rail (blade), common and crossings, sleepers, fastenings systems. 11. Operating and locking systems. Crossings and slip points. 12. Turnout collections. Cross overs, junctions. 13. Sets of turnouts. Turnouts in curves. High speed turnouts, development of new turnouts structures.

Exercise

13 hod., compulsory

Teacher / Lecturer

doc. Ing. Otto Plášek, Ph.D.

Syllabus

1. Crossover in curve 2. Turnouts and crossings assembly 3. Vehicle in curve, Vogel theory, Heumann theory, forces on wheelset, derailment condition. 4. Static track design, 5. Stability of continuous railway track 6. Permanent way on bridges 7. Submitting of calculations and project, credit.