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List of products by author: R. Duhme
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A Review of Planning Methods for Logistics in TBM Tunneling
Abstract: One of the often overlooked but crucial factors for quick TBM project completion are correctly dimensioned and managed logistic systems. As Mechanized tunnelling is applied in more and more projects worldwide, professional and standardized planning methods as well as reliable performance prediction methods become increasingly important as well. The outstanding records regarding safety,...
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Clogging and flow assessment tests with cohesive soils from Singapore
Abstract: Understanding the geological-geotechnical characteristics of the excavated soil are essential for soft ground excavation with EPB machines, and this characterisation should include the resulting mixture as well, called the muck, after the addition of soil conditioners (e.g. water, foam, polymers). The EPB shield relies on the properties of this muck to maintain face stability. Muck...
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Performance of a Muck Pumping System and its Excavation Monitoring forâ©EPBs
Abstract: Singapore Mass Rapid Transit (MRT) serves as the key to a sustainable transport system with most of the lines built underground without the need for significant land use. The 43-kilometers Thomson-East Coast line (TEL) runs from Singapore’s North to the city center and continues along the east coast towards the airport. Throughout the tunnelling history of Singapore, a significant body of...
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Simulation-based TBM performance prediction
Abstract: Fast growing urban areas put high requirements on the existing infrastructure systems. Due to limited surface space in this high populated areas the demand for underground projects increased continiousily in the last few decades. Frequently, finished projects do not reach the highest possi-ble production performance. Reasons for this are complex and can often not be identified clearly. The...
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