For the realization of RandstadRail a bored tunnel is planned in the city are Rotterdam. The tunnel consists of two bored single-track tunnel tubes. The tunnel crosses the loose packed sand embankment of an existing railway called the Gouda Link. The crossing depth underneath the railwa embankment is very shallow in relation to the loose packed sand deposit. A major geotechnical concern during the design stage of the project was the risk of uncontrolled ground movements. The sik of liquefaction due to monotonic loading and the corresponding sudden loss of strength are studied. Such liquefaction could be induced by the passage of the TBM (Tunnel Boring Machine) and could cause large deformations of the railway embankment. Large deformations caused by vibrations of the TBM are analyzed as well. During the design stage several opstions for ground improvement were considered. Aspects of the different opstion are discussed and the selected opstion is described.
LOKASI:
Ruang Koleksi Umum
Rak: 2