PM Creates Record in Concrete Pumping in India

Putzmeister has recently created a record in Concrete pumping at 1100 meters horizontal distance inside a tunnel by its Stationary concrete Pump BSA 1409D.

The 24 mw project has a tunnel of 2.5 meter diameter, length of 3 km and is situated at Bhilangana Hydro Electric Power Project, Ghuttu, Tehri Garhwal in Uttrakhand.

Steps followed in pump positioning and pipeline layout for BSA 1409D

Pump has been positioned in reverse direction for more stability.
Pipeline has been anchored with U clamps and base foundation has been done with steel and concrete.
Shut off valve was fitted so as to stop the back pressure of concrete and water as the tunnel is inclined in angle from inside and the slope is towards the pump.
Special concrete block has been prepared to block the thrust of pump to pipeline.


Putzmeister concrete pump model BSA 1409 at Bhilangana hydro electric power project	Putzmeister concrete pump model BSA 1409 at Bhilangana Hydro Electric Power Project


Shut Off Valve	Pipe line laying was done on the bottom centre of tunnel and it was properly anchored	The slurry feeding and concrete feeding were done in continuation till the concrete comes out at the outlet

Concrete Mix trials were carried out before and during the pumping of concrete. The slurry feeding and concrete feeding were done in continuation till the concrete comes out at the outlet.

Concrete placing inside the form work was carried out day and night.

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