Cut Slope Dynamic Stability Studier And Supporting Analysis

Mountain area highway in social and economic activity plays a key role， themountainous area highway roads construction has already become one of theimportant topics today. In order to facilitate the construction, accelerate theconstruction process, construction of cutting slope excavation blasting excavation isoften taken, which improves work efficiency, shortens the construction period. Butwith blasting construction, slope slide is frequently occurred, which makes great loss.How to ensure the blasting effect achieved the desired results, and at the same time,make the blasting effect on rock mass of the damage to the minimum is needs ofresearch. Combining with the actual engineering, through to the cutting slopeexcavation blasting vibration monitoring and analysis and numerical simulation, takethe limit equilibrium method and finite element strength reduction on schedulesimulation for the specific engineering blasting cutting slope excavation stabilitytheory analysis, and validation supporting impact on slope stability, specific content asfollowing：(1) This paper understands the slope failure forms and the factors influencingslope stability, discusses the different terrain, geological conditions on the effect ofblasting excavation effect;(2) This paper discusses the principle of blasting vibration monitoring andmethods, combined with the practical project, the monitoring of the slope excavationblasting vibration velocity, upon vibration velocity of particle and seismic wavespectrum structures, qualitative evaluation of slope stability;(3) Combining with cutting slope blasting vibration monitoring results andnumerical simulation results, this paper discusses the load of the slope blasting understress field and displacement field and the vibration wave propagation law, systemanalysis blasting excavation impact on slope stability;(4) This paper understands the different support form, through the contrastanalysis of slope stability under without supporting and supporting,verifies the role ofslope stability, and combining with actual engineering puts forward support designplan.