400 KV Gis Bay extention works AT 400 KV Drep substation Treviiicos

2019 to 2021 – Dubai, U.A.E

Due to the logistic constraints and limited head room allowances, micro piles were envisaged for the captioned project, I.e.,The Supply, Installation, Testing & Commissioning of Gas Insulated Line (GIL) Between 400 KV GIS at DREP and Step up Transformer at K-III and Associated Modification Works in Jebel Ali.


Drilling was performed by Swissboring by rotary drilling methods using bio-degradable polymer mud as the flushing medium.

Since there were limitation head room tolerance small drill rigs were employed for the construction of micro piles.


Dubai Electricity and Water Authority

Main Contractor Grid Solutions SAS-GE
Consultant LEAD Consultant
Qty 1600 no. micropiles, 4 no. preliminary load test and       15 no. static load test
Size Ø 350mm 502 no. piles and Ø 300mm 1098 no. piles each to a length of 11.5m for micropiles. 
Request information
Al Quoz Industrial Area First, P.O.Box 3905 - Dubai – U.A.E.