ABSTRACT

The blasting vibration produced by the blasting construction near the dam will have a certain impact on the earth-rock dam. Combining blasting theory and engineering practice, the dam finite element analysis model was established through Geo-Studio, and the impact of blasting vibration on the dam was analyzed from the aspects of dam slope stability and dam foundation liquefaction, and the blasting plan and dam safety monitoring during construction, the results show that under the action of blasting load, the safety factor of dam slope anti-sliding stability has been reduced, but it still meets the requirements of the specification, and the dam foundation will produce excessive pore water pressure and possible liquefaction zone. The facility protection puts forward reasonable suggestions, and the calculation and analysis results provide a reference for the analysis of the impact of blasting near the dam on the safety of the earth-rock dam.