pressure gauge ออก หลัง retains Tunnel boring machine (TBM) cool by a continuous water provide. The Cross Rail venture is an east-west rail route that passes beneath the city of London utilizing new twin-bore 21km tunnels.
EuroFlo pumps and the tanks are located at the surface; the water is pumped from there down to the shaft and all alongside the tunnel as a lot as the TBM. Once the water has passed by way of the TBM system the remaining water comes back through a filtration system to the tanks on the floor, out of the tunnel.
The water circuit supplies 20 l/s to each TBM and 8 l/s is used in the TBM for various works and 12 l/s returns to the tanks. The inlet stress needed ranges between four and 10 bar. On one web site three TBM’s are working and the pump system delivers 60 l/s, with the tools consisting of 1 single tank (3200m3) and one industrial pump used per tunnel. On one other site, the installation support’s the excavation with only one TBM with 20 litres/second and the water storage tank capacity of 1100m3
EuroFlo use 37 kW vertical multistage Industrial pumps for the cooling system whereas the TBM excavates via a serious underground part of the Cross rail venture.
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