Xiaolangdi inclined core rockfill dam is the highest earth core rockfill dam constructed in China, with the dam height of 156m. The project is located at the main stream of Yellow River and it has multiple functions of flood control, hydropower, sediment flush, irrigation and etc.. As its unique position in regulating Yellow River, specific high sediment flow, complex geological conditions, rigor requirements of reservoir operation and the huge engineering scale, it is considered as the most complicated and challenging project in the world. The construction of the project has applied a series of new technologies, which include: the construction of concrete diaphragm wall in deep foundation (81.9m), prevent sediment block at intakes of high sediment flow, large span underground structure excavation, stabilization of the intake and outlet of the left bank large scale tunnels and caverns,  etc.
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