What is the height of the railroad tracks?

The commonly used rail model of China's railway is 60kg m rail, the rail height is 176mm, and it is generally 174mm after permanent wear. The rail to sleeper height is 175mm.

The average height of the gravel to the rail is 248mm.

Railway tracks, referred to as rails, rails, tracks, etc. It is used on railways and works with switches to allow trains to travel without steering. The track usually consists of two parallel steel rails.

The rails are fixed on the sleepers, and the ballast is under the sleepers. Rails made of steel can bear more weight than other materials. Sleepers, also known as sleepers, or sleepers, are used to distribute the weight of the rails separately, and to keep the rails fixed and maintain the gauge of the rails.

In general, the bottom of the track is a gravel-paved ballast. Ballast, also known as ballast, gravel or track bed, provides elasticity and drainage to the track. Rails can also be laid on concrete pedestals (as is common on bridges) or even embedded in concrete.

The modern rail cut is in the shape of a "gong", which is divided into the rail head in contact with the wheel, the rail waist in the middle and the rail bottom at the bottom. Different routes have different requirements for the strength, stability and wear resistance of the rails. Therefore, the rails are also available in different specifications.

The choice of which route should be used requires consideration of economic and technical factors.

The type and strength of the rail are expressed in kg m. The heavier the rail per metre, the greater the weight it can bear.

The rails commonly found in European railways come in a variety of weights:

40kg/m

50kg/m

60kg/m

In China, it is 50 kg m

60kg/m

75kg/m

The main line uses 60kg m or 75kg m rails.

The commonly used rail model of China's railway is 60kg m rail, the rail height is 176mm, and it is generally 174mm after permanent wearThe rail to sleeper height is 175mm.

The track width of China's high-speed railways is usually 1435 mm, which is the standard track width for most of the current express and freight railways.

In 1937, the International Railway Association made a rule: the 1435 mm gauge is the international standard gauge. Gauges that are wider than the standard gauge are called broad gauges, and those that are narrower than the standard gauges are called narrow gauges.

1. Gauge is the distance between two rails of a railway track. At present, there are more than 30 different gauges in the world, which are divided into normal gauge, broad gauge and narrow gauge.

2. In 1937, the International Railway Association formulated 1435mm as the standard gauge, that is, the general gauge, and 60% of the world's railways are standard gauges. This ordinary gauge is also known as the standard gauge or the international gauge. Gauges that are wider than the standard gauge are called broad gauges, and those that are narrower than the standard gauges are called narrow gauges.

Double-gauge or multi-gauge railways have three or four rails that allow trains of different gauges to travel.

The track width in China is 1435mm.

In 1937, the International Association of Railways made a rule: 1435 mm gauge.

It is an international standard gauge, and the gauge above 1520 mm is broad gauge, and the gauge below 1067 mm is counted as narrow gauge. Today, although most countries use a 1435 mm wide gauge, there are still more than 30 different gauges. The different standards of railway gauge will inevitably make it difficult for railway transportation to flow smoothly.

The gauge of 1435 mm is recognized as the international standard gauge and is used in about 60 70% of the countries of the world (Great Britain, USA, Canada, Federal Republic of Germany.

etc.), all of which use 1435mm standard gauge. Those with a gauge greater than 1435mm are called broad gauges, such as the Soviet Union and Panama.

Countries such as Finland use this gauge.

The width of China's rails is 1435mm, and in 1937, the International Railway Association made a stipulation: the width of 1435mm is the international standard width, the width above 1520mm is broad gauge, and the width below 1067mm is divided into narrow gauge.

Rail width crack width.

The gauge with a width of 1435mm is recognized as the international standard gauge, and about 60 70% of the world's countries (the United Kingdom, the United States, Canada, the Federal Republic of Germany, etc.) use the 1435mm standard gauge, and the gauge greater than 1435mm is called broad gauge, such as the Soviet Union, Panama, Finland and other countries use this gauge.

The width of the train track in our country is 1435mm. In 1937, the International Association of Railways established 1435mm as the standard gauge.

So 1435mm is also known as the international gauge. Most of the world's gauge is standard gauge, with gauge greater than 1435 for broad gauge and less than narrow gauge.

Train track width.

The gauge is the minimum distance between the action of two strands of steel within 16mm of the top surface of the rail.

The standard gauge was proposed by the United Kingdom, which was the first to use railways, and the early railways in China were basically developed by Britain and Belgium.

Engineers undertook the construction, so the gauge follows the British standard.