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List of products by author: A. Casasús
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Cross passage construction in soft soil by RCC Box pushing in MRTS
Abstract: After construction of two 1.67 Km long and 5.9 m Internal diameter twin bored tunnels, to connect Nizammudin to Ashram station in the phase-III expansion plan of Metro network, in New Delhi, five Cross Passages needs to be excavated to connect both tunnels as per NFPA guidelines. The ground consists of alluvium, associated with the Yamuna River, belonging to the Pleistocene, a very fine silty...
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Kolkata EW Metro - Removal of abandoned H-Piles using NATM in Soft Ground to facilitate the TBM operations in Package...
Abstract: Alignment of new EW (East-West) Metro Package 02, bored tunnels to new Esplanade Station, is crossing the existing (30-35 years old) Old Esplanade underground station, built with traditional bottom-up construction used in India in the 1980s. Newly proposed EW Metro tunnel alignment is running diagonally across this 250m long station (see Figure 2. below). There is 7.6m of vertical separation...
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Tunnelling in Mixed Ground Condition - A Challenge to Design and Construction
Abstract: In one of the civil contracts of Downtown Line 2 in Singapore, the construction of twin bored tunnels was conducted using Slurry TBMs. The TBM drives faced challenges involving high abrasivity and high permeability of the Bukit Timah Granite Formation. Due to its variability of weathering properties, such geological formation often leads to frequent cutter-head interventions and other...
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