3 EPB TBMs Kawasaki Heavy Industries (diameter 4 m) plus 3 TBM of Samsung completed the longest drive of the project , total lenght 16 Km. The STEP project involves construction of 41m of a deep sewer tunnel, 43km of supply tunnels, which will be smaller in diameter to transport the sewage to the treatment plants, and an underground pumping station at Al Wathba with a pumping capacity of 30m³ per second. The tunnel will start at a depth of 27m underground and reach a depth of 100m towards Al Wathba.
High performance liquid foaming agent, based on biodegradable anionic surfactants, in combination with a natural lubricating polymer, for ground conditioning in mechanized tunnelling
High performance liquid foaming agent, based on biodegradable anionic…
Liquid foaming agent, based on biodegradable anionic surfactants, in combination with a lubricating polymer for ground conditioning in mechanized tunnelling
Liquid foaming agent, based on biodegradable anionic surfactants, in…
One-component, ultra-fluid polyurethane resin applied by injection for waterproofing structures and ground and rocks subject to intense percolating water. The reaction time may be regulated.
One-component, ultra-fluid polyurethane resin applied by injection for…