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Rui D.,Henan Polytechnic University | Wu Q.,China Railway 16th Construction Bureau Group Co. | Cao Z.,China Railway 16th Construction Bureau Group Co. | Zhao Y.,Henan Polytechnic University | Li G.,Hainan University
Advanced Materials Research | Year: 2011

Yellow River-Crossing Project in South-to-North Water Transfer approach through the use of shield tunnel and its north bank departure shaft adopts diaphragm wall as enclosure structure. The depth of continuous wall of its shielding starting shaft is 76.6m, which is the deepest at present in china. The continuous diaphragm wall travels through the layer of silver sand, medium sand and loam from top to bottom, where the geological conditions are poor with large difficulty of construction. This paper sets forth construction of guide wall, reinforcing measures before construction, Trenching process, groove segment connections, innovative technologies of uplifting huge reinforcing cage and so on, which will provide guidance and lessons for the similar project. © (2011) Trans Tech Publications, Switzerland.

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