Shaft Sinking
HB Tunnelling is a leading contractor in segmental shaft sinking and has the capabilities to construct shafts from 2M - 20M in diameter for the underpinning technique.For the caisson technique we are able to construct them from 2M - 15M in diameter. The caisson technique is a preferred method for sinking shafts in poor ground conditions such as sand, gravel or ground with high water levels.