Keeping Track of Track Geometry
Basics - Error Detection - Correction - Quality: an overview of the DACH countries and the UK
Fabian Hansmann, Wolfgang Nemetz und Richard Spoors
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Fabian Hansmann, Wolfgang Nemetz, Richard Spoors, Keeping Track of Track Geometry (2021), Global Rail Group, Bingen a. Rhein, ISBN: 9783968452476
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Beschreibung / Abstract
This technical book provides a comprehensive, practical overview of all aspects of track alignment correction, taking into account the relevant regulations of the DACH countries (Germany, Austria and Switzerland) and the United Kingdom.
First of all, the fundamentals of track alignment and the interrelationships between track components and their stresses are described in a clear and practical manner. Starting from these fundamentals of track alignment, the book then spans the thematic arc from the determination to the methods of measurement and correction of track position defects to quality control. The entire tamping process, including all the necessary accompanying work, is explained clearly and independently of the manufacturer.
Regardless of the existing level of knowledge, this book offers interested parties from all areas of railway engineering an insight into the planning, execution and acceptance of tamping work in the DACH countries and the UK.
The six chapters of this book not only provide a well-founded introduction to the basic aspects of railway track and track construction, but also give a comparison of the engineering principles adopted in these four countries.
This comparison provides an interesting insight into the practical implementation of those technical principles and illustrates common features as well as differences. From the legal provisions to the basics of the permanent way as well as measurement methods, the book describes the key concepts that are required for the design and maintenance of track geometry on plain line track.
The included e-book provides users of a device with pdf-reader (PC, tablet, smartphone) the contents of the work also electronically and with search function.
First of all, the fundamentals of track alignment and the interrelationships between track components and their stresses are described in a clear and practical manner. Starting from these fundamentals of track alignment, the book then spans the thematic arc from the determination to the methods of measurement and correction of track position defects to quality control. The entire tamping process, including all the necessary accompanying work, is explained clearly and independently of the manufacturer.
Regardless of the existing level of knowledge, this book offers interested parties from all areas of railway engineering an insight into the planning, execution and acceptance of tamping work in the DACH countries and the UK.
The six chapters of this book not only provide a well-founded introduction to the basic aspects of railway track and track construction, but also give a comparison of the engineering principles adopted in these four countries.
This comparison provides an interesting insight into the practical implementation of those technical principles and illustrates common features as well as differences. From the legal provisions to the basics of the permanent way as well as measurement methods, the book describes the key concepts that are required for the design and maintenance of track geometry on plain line track.
The included e-book provides users of a device with pdf-reader (PC, tablet, smartphone) the contents of the work also electronically and with search function.
Inhaltsverzeichnis
- Keeping track of track geometry
- Preface
- Contents
- 1 Legal and technical rules and standards
- 1.1 Key issues
- 1.2 The railway and its rules and standards
- 1.3 From the technical entity to interoperability
- 1.4 Cross-border standardisation
- 1.5 Internal railway guidelines
- 1.6 Summary
- 2 Basic principles of the permanent way
- 2.1 Key issues
- 2.2 The railway as a system
- 2.3 Vehicle gauge and structure gauge
- 2.4 Axle loads on the track and their distribution
- 2.5 Classification of lines
- 2.6 The permanent way and its constituent parts
- 2.7 Switches and crossings (turnouts)
- 3 Track alignment design
- 3.1 Key issues
- 3.2 Physical principles
- 3.3 Components of a railway route
- 3.4 Limits and standard values
- 3.5 Transition curves and cant ramps
- 3.6 Minimum lengths
- 3.7 Reverse curves with an abrupt change in curvature (“Track Scissors")
- 3.8 Buffer locking
- 3.9 Track re-alignment – variation of the distance between the centres of two tracks
- 3.10 Gradient change
- 3.11 Summary
- 4 Track geometry defects and the determination of correction values
- 4.1 Key issues
- 4.2 Track geometry defects
- 4.3 Basic principles of measuring track geometry
- 4.4 Precision method
- 4.5 Compensation method
- 4.6 Correcting isolated defects (Spot Tamping)
- 4.7 Overlifting the track position as a maintenance process
- 4.8 Summary
- 5 The correction of track geometry
- 5.1 Key issues
- 5.2 Basic principles of track geometry maintenance
- 5.3 Correction of track geometry with a tamping machine
- 5.4 Dynamic track stabilisers and consolidators
- 5.5 Ballast distributing and profiling machines
- 5.6 Summary
- 6 Acceptance and quality assurance
- 6.1 Key issues
- 6.2 Acceptance
- 6.3 Sequence of acceptance
- 6.4 Acceptance of track renewals in the UK
- 6.5 Acceptance criteria for tamping work at DB, ÖBB, SBB and NR
- 6.6 Machine-integrated recording systems
- Bibliography
- Authors
- List of abbreviations
- Index
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