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</html><thumbnail_url>https://www.robbinstbm.com/wp-content/uploads/2010/04/17_FastEPBs_WhitePapers.jpg</thumbnail_url><thumbnail_width>900</thumbnail_width><thumbnail_height>599</thumbnail_height><description>This paper analyzes recent record-breaking and high-performing projects seeking to identify factors that contribute to fast machine advance. These factors are then discussed and an effort made to form simple, high level guidelines for optimal TBM excavation in mixed ground conditions.</description></oembed>
