Application of Top Resection Construction Technology of Long-distance Cut-off Walls in Zhirui Pumped Storage Power Station
Long concrete cut-off walls are installed in the foundation of the check dams of the lower reservoir of the Zhirui Pumped Storage Power Station in Nei Mongol.The top of the long-distance cut-off wall needs to be cut off 1.5 m,if the conventional crushing head and other large disturbance mechanical equipment are used to break it,the anti-seepage effect and structural stability of the cut-off wall itself may be destroyed;if the use of small equipment such as artificial coordination electric pick to destroy,it is not only costly,but also takes long construction period,which is undoubtedly detrimental to the project schedule and cost control.In view of the a-bove construction problems,combined with the actual construction conditions,the construction technology is optimized to speed up the resection progress of the top of the cut-off wall,which can provide a reference for other similar projects.
Zhirui Pumped Storage Power StationLong distanceCut-off wallTopResectionConstruction Technology