{"id":29313,"date":"2024-07-26T16:52:54","date_gmt":"2024-07-26T14:52:54","guid":{"rendered":"https:\/\/www.soletanche-bachy.com\/?p=29313"},"modified":"2024-11-27T18:08:39","modified_gmt":"2024-11-27T17:08:39","slug":"another-milestone-reached-on-the-nsc-105-project-completion-of-the-cast-tunnel-wall","status":"publish","type":"post","link":"https:\/\/www.soletanche-bachy.com\/en\/another-milestone-reached-on-the-nsc-105-project-completion-of-the-cast-tunnel-wall\/","title":{"rendered":"Another milestone reached on the NSC 105 project: completion of the cast tunnel wall"},"content":{"rendered":"
26\/07\/2024<\/p>\n<\/div>
After more than four years’ work,\u00a0the PBJV Joint Venture, comprising Penta Ocean (leader), Bachy Soletanche Singapore and Soletanche Bachy International,\u00a0<\/strong>has just completed the tunnel diaphragm wall of the NSC 105 tunnel, marking a turning point in the North-South Corridor urban freeway project.<\/p>\n<\/div> This first phase of the project took place in several stages, during which the BU teams had to overcome numerous technical challenges. This latest achievement once again underlines the dedication and ingenuity of the project teams on site.<\/p>\n<\/div> A total of 13,223 m\u00b3 of GIII, GII and GI rock has been excavated since the arrival of the HF8G\u00ae hydrofraise machine\u00a0with grippers\u00a0<\/strong>in 2021. A total of 5,225 hours of excavation were required to build the diaphragm wall tunnel.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n Located in the densely populated Novena area of Singapore, with busy roads and buildings, BU used rigorous planning to minimize any disruption during construction. To achieve this, the teams used the HF8G\u00ae to reduce vibrations and enhance tool stabilization, thanks to its gripping module. This machine considerably improved the execution of the diaphragm wall.<\/span><\/p>\n HF8G\u00ae was also deployed during work close to the IRAS building and an existing Mass Rapid Transit (MRT: high-capacity rail transport system serving the city-state of\u00a0<\/span>Singapore<\/span><\/a>) tunnel, located less than 4 meters from the diaphragm wall. Its use ensured minimum vibration and maximum safety.<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>Challenges met by the HF8G\u00ae with grippers.<\/h2><\/div>