ABSTRACT
To study the influence of pile foundation parameters on superstructure in tunnel blasting, the three-dimensional calculation model of rock and soil mass, tunnel and superstructure were established by using MIDAS /GTS NX finite element simulation software, and the vibration law of superstructure was studied by selecting the parameters of pile foundation. The results show that when the pile lateral friction resistance value is within the range of [160,165], the vibration velocity of the structure increases by leaps and bounds with the increase of pile lateral friction resistance, in a certain range, the relationship between the stiffness of pile foundation material and the vibration velocity of superstructure shows an exponential growth trend.
