Microtunneling for a water collector in the urban areas around Paris

Verwendete Technik:
Microtunneling
Hydraulic Joint
MSS

n the densely populated city of Gagny, just outside Paris, a large water collector was built by the use of microtunneling. This basin will serve as a rain collector, avoiding floodings in the event of heavy and long rain periods.

Radius:
190 m / 623 ft.
Durchmesser
Pipe ID: 2200 mm / 86 in ; Pipe OD: 2700 mm / 106 in
Länge:
27 m / 909 ft.
Gagny, Paris (France)
2023

Remarkable for this project is the tight curve radius in combination with a common pipe length of 3.00 m. Thanks to the largest model of the Hydraulic Joint (JC260), no significant sacrifice had to be made on pipe lengths which was beneficial for the efficiency of the entire project. Furthermore, precise monitoring of the joint openings in MSS makes it possible to realize this kind of curved microtunneling in an effective and reliable way. Not to be underestimated was the extremely compact construction site in this urban area, which involved an extra complex logistic-exercise that, partly due to the real-time status of the construction site in the MSS-cloud service, was executed even more organized.

Einzelheiten zum Projekt

Bezeichnung des Projekts

Microtunneling for a water collector in the urban areas around Paris

Rohrmaterial

Reinforced Concrete

Standort

Gagny, Paris (France)

Rohrlänge

3.00 m / 9.84 ft.

Nutzung

A large water collector was built

Max. Überdeckung

Ausgeführt

2023

Geologie

Alluvium, Masses and marls of Gypsum. 0.8 – 0.95 Bar

Besonderheiten

Large diameter pipes, tight curve radius, urban area

Druckübertragungsmittel

JC260, single loop, admissible jacking force in curve: 10’700 kN

Totallänge

277 m / 909 ft.

TBM

Herrenknecht AVND2000AB

Innendurchmesser

2200 mm / 86 in.

Bauherr

Communes de Gagny et Neuilly-surMarne

Aussendurchmesser

2700 mm / 106 in.

Planer / Bauleitung

Seine-Saint-Denis Direction de L’eau et de l’assainissement Service études et Travaux

Linienführung

Double-Curve

Vortriebsfirma

Eiffage / Epping

Min. Kurvenradius

190 m / 623 ft.

Rohrhersteller

Berding

Referenz//Testimonial