Types of Sleepers .
Pot type sleepers are not suitable for curves sharper than 4 degrees. 2. Types of sleepers, Characteristics, Functions. These are not suitable for all types of rail sections and gauges. They are molded in trough shape and placed on ballast in inversed trough shape.Cast iron sleepers are widely used in the world especially in Indian railways.
Characteristics . They were first of all used in France round about in 1914 but are common since 1950. Please enter your email address. Service life is very long; Less liable to corrosion; Form good track for light traffic up to 110 kmph as they form rigid track subjected to vibrations under moving loads without any damping
Due to growing shortage of timber to be used for wooden sleepers, their high maintenance, cast and short life, metal sleepers are now being widely used. These sleepers generally rests on ballast and is also called as ties in some regions. Metal Sleepers: The sleepers normally made of cast iron or steel are known as metal sleepers.
The sleepers usually made of cast iron or steel are known as metal sleepers. The pot is oval in shape with larger diameter 2′-0″ and smaller diameter 1′-8″ is preferred. Metal sleepers are two types. These are still widely using in some western countries.
They may be a twin block sleepers joined by an angle iron.
Depending upon the position in a railway track, railway sleepers may be classified as:These are the early form of sleepers which are not commonly used nowadays. Depending upon the material, the transverse sleepers may be classified as:The timber sleepers nearly fulfilled all the requirements of ideal sleepers and hence they are universally used.
Table 7.3 compares the important characteristics of these types. Cast Iron Sleepers They consist of two pots or plates with rib and connected by wrought iron tie bar of section of about 2″ ½” each pot or plate is placed below each rail. It may be a single block pre-stressed type. Wooden. Cast iron pot type sleepers; Cast iron plate type sleepers; Advantages of Cast Iron Sleepers. the transverse sleepers are economical, silent in operation and running of the train over these sleepers is smooth.
They have many combined properties of all other types.Sadananda is a Civil Engineer and is an Author, Editor and Partner of The Constructor since 2016.Types of Railway Sleepers, Their Functions, Benefits and Drawbacks However, hardwood sleepers made of oak, jarrah, teakwood are more famous.Concrete sleepers are manufactured by concrete with internal reinforcement.
The pot is oval in shape with larger diameter 2′-0″ and smaller diameter 1′-8″ is preferred. Hence, the sleeper withstand well against high external pressure.Steel sleepers are more often used because of stronger than wood and economical than concrete. Cast iron sleeper. The wood used may be like teak, sal etc or it may be coniferous like pine.The salient features of timber/wooden sleepers with advantages and disadvantages.They are in the form of steel trough inverted on which rails are fixed directly by keys or nuts and bolts and used along sufficient length of tracks.They consist of two pots or plates with rib and connected by wrought iron tie bar of section of about 2″ ½” each pot or plate is placed below each rail.
Due to the growing shortage of timber to be used for wooden sleepers, their high maintenance, cast and short life, metal sleepers are now being widely used. Pot type sleepers are not suitable for curves sharper than 4 degrees. 2- Metal Sleepers.
Plate sleepers consist of rectangular plates of size about 2′ – 10′ x 1′ – 0″.The relative advantages and disadvantages are given below.R.C.C and pre-stressed concrete sleepers are now replacing all other types of sleepers except to some special circumstances such as crossing bridges etc here timber sleepers are used. These are more suitable for high speed rails.Most of the concrete sleepers are made from pre-stressed concrete in which internal tension is induced into the sleeper before casting. Cast Iron Sleepers. Wooden sleepers are used since olden days. What are Railway sleepers? Hence, it is also called as plastic sleepers.
Cast Iron Sleepers Cast iron sleepers are being extensively used on Indian Railways and about 45% of the track at present consists of CI sleepers, which may be either pot type or plate type. Concrete sleepers used in many countries due to its high stability and small maintenance. The main advantages and disadvantages of CI sleepers over steel trough sleepers are the following. Sign Up to The Constructor to ask questions, answer people’s questions, write articles, and connect with other people. Type of sleepers in Railway. The sleepers mostly used on Indian Railways are (i) wooden sleepers, (ii) cast iron (CI) sleepers, (ii) steel sleepers, and (iv) concrete sleepers.
Service … 2. CST 9 type sleepers more famous in Indian railways.Composite sleepers are modern type sleepers which are made from waste plastic and rubber.
Cast Iron Sleepers They consist of two pots or plates with rib and connected by wrought iron tie bar of section of about 2″ ½” each pot or plate is placed below each rail. They are available in 2 types, pot type sleepers and plate type sleepers. They also have good life span. It consists of slabs of stones or pieces of woods placed parallel to and underneath the rails.
They are available in 2 types, pot type sleepers and plate type sleepers.
They remove the drawbacks of longitudinal sleepers i.e. Cast iron sleepers are widely used in the world especially in Indian railways. VIP members get additional benefits.Login to The Constructor to ask questions, answer people’s questions, write articles & connect with other people. VIP members get additional benefits.Lost your password? a- Steel Sleepers.
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