Long Jacking Sections

Pipe Jacking for the Emscher Interceptor attains Section Lengths in Excess of 1100 m

Since the mid-19th century the River Emscher in the German Ruhr District has been used for disposing of wastewater. In the early 1990s, it was decided to replace the existing open wastewater system with a sewer system and to restore the River Emscher to its natural state. The major Emscher conversion project is divided up into a large number of individual schemes, with construction phase 30 being the biggest. By applying the pipe jacking method interlinking conduit sections with section lengths in excess of 1100 m are produced.

Converting the Emscher and planning

the Emscher Interceptor

The 85-km long River Emscher flows right through the Ruhr District. It has its source to the east of Dortmund and flows into the Rhine near Dinslaken. The Emscher has been used to dispose of wastewater since industrialization began. The construction of underground sewer systems was not possible for a long time on account of subsidence caused by hard coal mining. The Emschergenossenschaft founded in 1899 thus created an efficient interceptor system for a catchment area of 865 km² through converting the river together with its...

Related articles:

Issue 06/2017 Germany

Final Double Breakthrough at the Emscher Sewer

With the breakthrough of the last two tunnel boring machines into the target pit of construction section 40 on June 12, 2017 the tunnel and pipe jacking work for the Emscher sewer has been completed....

more
Issue 02/2018

Emscher Interceptor: Special geotechnical Tunnelling Features in Section 40

1 Introduction The Emscher Interceptor AKE (Fig. 1) has an internal diameter of 1.6 m to 2.8 m and is being constructed at depths of up to 40 m. Both pipe jacking and tunnel boring machines were...

more
Issue 03/2018 France

Modernization of Drinking Water System In Plobsheim with Pipe Jacking

In the little French town of Plobsheim near Strasbourg, a joint venture consisting of the contractors Valentin and SMCE Réha has modernized the municipal drinking water system. Several pipe jacking...

more
Issue 03/2017

Rectangular Pipe Jacking

Machine Design In the 1970s rectangular pipe jacking was developed and successfully applied for the first time in a Tokyo underground passage. After several years’ research and development,...

more
Issue 02/2012 Germany

Biggest individual Project started for Emscher Redevelopment Scheme

It is the biggest individual project within the scope of the “Emscher Redevelopment” – a generation-spanning scheme providing the prerequisite for modernising the region’s hydro-economic...

more