Abstract: Based on bedrock digging of embankment project in the Three Gorges Proiject, the choice of measurement method and object of vibration by blasting earthquake wave induced by bedrock digging of embankment project were studied. Via regression analysis of the results of measurement on blasting vibration, the spread and attenuation regularity of vibration velocity of blasting were established. Combined the project, the vibration frequency of earthquake wave induced by blasting of bedrock digging and the vibration frequencies of surrounding buildings in blasting zone were contrasted and analyzed. After analyzing, the vibration frequency by blasting of this digging project was far bigger than the itself vibration frequency of structure of surrounding civilian house; consequently the safety of surrounding buildings were assured. At the same time, integrated the digging blasting construction of embankment project, the safety control standard of blasting vibration by this blasting engineering was confirmed from the two aspects such as safety vibration velocity of buildings and safety distance of blasting vibration; consequently, it is shown that the construction task of this blasting project were done safely; and the safety of surrounding buildings were assured while blasting was on. This research has played an important role in coaching blasting construction of bedrock digging and assuring the safety of ground buildings.

Key words: bedrock digging, blasting vibration, attenuation regularity, safety control standard