Trial holes have been planned to take place along the length of the proposed TBM power supply route starting in Rayners Lane and moving westwards to West Ruislip. The trial holes, which are around 1m square in size, should only take a day to complete.
HS2 have said that work will start on 12 August and is expected to last for two weeks.
During the week beginning the 12 August work will take place in Farm Avenue, Rayners Lane, Whittington Way, St Michaels Crescent, Cannon Lane, Cannonbury Avenue, Deane Croft Road, Meadow Way, Hawthorne Avenue and Lime Grove.
From the 19 August trial holes will take place in Myrtle Avenue, Westholme Gardens, Manor Way and Midcroft.