Support Design for the Foundation Pit Works of Dalian University of Technology Deepwater Engineering Innovation Experimental Base

The project site of Deepwater Engineering Innovation Experimental Base is located on the campus of Dalian University of Technology. The foundation pit covering an excavation area of 5585.1 square meters at the bottom has three parts (third steps). The first layer is equipped with the permanent support of cast-in-place reinforced concrete slabs + tensile prestressed anchors; the second layer inside the foundation pit of first layer has the permanent support of secant piles + pressure prestressed anchors; and the third layer inside the foundation pit of second layer has the temporary support of steel tubular pre-splitting piles + tensile prestressed anchors.