Beijing capital building designed by Japan Shimizu construction, 50 floors above ground, 4 floors below ground, -23.76m. Beijing machinery construction company used 3 layers of anchors, internal and external ramps, excavators directly into the trench construction method, than the original program to save 4 million yuan, in the slope piles, anchors, girders, earthwork construction has many unique features, for China's deep foundation construction to provide valuable experience.