Simulation Study On Dynamic Response Of Underground Well Group Structure To Earthquake And Explosion

As a common underground structure,well group structure has been widely used in various fields.The underground well group structure is easily damaged by various external factors,such as the air explosion shock wave,the natural vibration characteristics of the structure and the soil vibration characteristics during the earthquake.Therefore,it is necessary to study the response of underground well group structure under seismic wave and explosion shock.As numerical simulation analysis based on ANSYS software,using the no reflection boundary condition to simulate infinite soil domains and explosive air field of well group structure,the influence of using ALE algorithm,and used APDL language and K file keyword parameterized modeling and analysis,the well group of underground structure response affected by the air blast.From the propagation of shock wave,vibration velocity changes-time,the relationship between vibration velocity peak and explodes the pitch,the overpressure peak value and the relationship between the pitch,the blasting explosive position and well group of response are analyzed,and several aspects,such as the relationship between the results show that near the explosion well group of closer from the explosion center near the mouth of the well location are most vulnerable to damage.Using ANSYS software to analyze the seismic response,using time-history analysis method,the response of steel well group structure in the Ⅲ type site under the influence of seismic waves of different intensity levels is analyzed from the stress,acceleration time-history change,stress peak distribution,maximum displacement point distribution and other aspects of the analysis,the results show that,The maximum stress of the well group structure is distributed near the bottom of the well,the maximum displacement is distributed near the wellhead,and the soil has an amplifying effect on the acceleration.The third party software platform is developed by using Py QT5.The batch command of ANSYS is used to complete the process of parameterization and submission operation from the background.Through Python related functions,the platform completes the communication with ANSYS software,realizes the integration of model parameter input,calculation and result processing outside the software,and improves the efficiency of operation processing.