Study on pouring efficiency and unit price calculation method of extra-deep concrete cut-off wall based on digital image technology
As more and more hydropower projects adopt the extra-deep(more than 100 m)concrete cut-off wall for seepage control treatment at dam foundation,the current estimated budget quota of hydropow-er projects can not meet the demand of unit price calculation of concrete pouring projects.Taking the hidden risk treatment by extra-deep(148 m)concrete cut-off wall in Shiziping hydropower station as ex-ample,the digital image technology is used to measure and analyze the concrete pouring efficiency for a year,and the relationship between average pouring efficiency and depth of extra-deep concrete cut-off wall is obtained.On this basis,combined with the relevant technical specifications,the calculation meth-od and key points for unit price of extra-deep concrete cut-off wall pouring project are put forward.
extra-deep concrete cut-off wallconstruction efficiencycalculation method of unit price
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