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Abstract: The impact of tunnelling on existing tunnels plays an important role during planning and execution of tunnelling works in the urban area. An existing water drainage tunnel operated by Bangkok Metropolitan Administration so-called “BMA tunnel” is crossed by westbound and eastbound tunnels of the recent Bangkok MRT Orange Line project. The westbound lower tunnel passes perpendicularly below the...
Abstract: Bangkok is in the state of expanding the mass rapid transit system to cope with the rapid rising and city expansion. Recently, underground MRTA lines have been constructed and are being implemented. They are located in congested city area which demands rigorous and careful design considerations to overcome constraints related to city land use regulations and restrictions on construction...
Abstract: Metropolitan Waterworks Authority (MWA) intended to improve the existing transmission tunnel of various sections with the diameters varies from 2.0 m to 2.8 m and the total length of 14 km approximately, which was constructed more than 30 years. The existing water transmission tunnel mentioned above has been suffered from the leakage in the entire tunnel section due to insufficiency of water...