Blasting excavation is one of the most commonly used methods in road high cutting slope construction. Under blasting vibration wave, highway excavation process and its operation is directly influenced by the stability of high cutting slope. Therefore, based on the Lutuo Road construction project, a FEM model is established by midas GTS. The stress field, displacement field and velocity distribution and transfer laws is analyzed under blasting vibration. Conclusions about the dynamic response of high cutting slope under blasting vibration are as follows:

  1. As the explosion is close to the slope's corner, a stress concentration mainly effected field is formed within a certain altitude of the slope's corner.

  2. The displacement and vibration velocity of the high cutting slope has obvious magnification along the vertical direction under blasting vibration, which is similar to natural earthquake effect.

  3. Millisecond-delay-control blasting technology is adopted, so the vertical vibration velocity of the buildings which are 80 m away from the blasting source is controlled below 2 cm/s, which is considered to be safe according to the blasting vibration safety control standard.


With the rapid development of economy in our country, a large number of high cutting slope appeared in highway construction which located in mountainous and hills. During the construction of high slope, seismic effect of blasting vibration, as the main external factors which affect the stability of slope, is getting more and more attention from tire researchers.

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