Reinforced Concrete Jacking Pipe



When surface conditions make it difficult to install pipe by conventional open excavation and backfill methods, or when it is necessary to install pipe under an existing embankments, installation by jacking or tunneling is used.

Concrete pipe is ideally suited for tunneling and jacking. The pipe can be pushed forward immediately after the soil is excavated, providing a complete tunnel liner for protection of workers and equipment. Because of the technological advances and increased experiences, many pipe line are now being jacked. Reinforced Concrete Pipe, as small as diameter 500-mm and as large as diameter 3500 mm diameter, has been installed by jacking. Since conventional jacking procedures require access by workmen through the pipe to the heading, a 500 mm diameter pipe is generally the smallest practical size for most jacking operation.

Jacking pipe under railroads, airport runways, congested streets and highways is a common practice. It does not interfere with traffic and it eliminates the costly maintenance which often results from trench settlement. Reinforced Concrete Pipe is particularly suitable for jacking because of its strength and because it is not easily deflected from established line and grade since its smooth exterior surface offer little frictional resistance.

The advantages of jacking method described below:

  • Minimizes disruption to residents and traffic, requiring only a jacking and reception shaft.
  • Reduces the risk of damage to adjacent properties.
  • Ground tolerant minimizing de-watering and ground stabilization.
  • Accurate installation to 1” tolerance of line and level.
  • Final installed pipe is stronger than a standard open cut pipe.
  • Fully remote controlled, reducing the risk of accidents.
  • Less reinstatement to road surfaces.

Amiantit Pipe Systems

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