Disturbance and Control of National Strategic Gas Storage Induced by Adjacent Tunnel Blasting

Underground gas storage are often subject to external dynamic loads, blast vibrations, and seismic disturbances, since they function as backup areas for the strategic national energy reserve, supply demand dispatch, storage. Currently, research on response characteristics, stability, disturbance control of underground storages under loads is still incomplete great practical importance ensure security. Therefore, this paper takes blasting project Sansheng tunnel, which passes through reservoir, engineering background. Based geological conditions rock characteristics surrounding tunnel studied using finite element method. The peak vibration velocity distribution rocks at different source distances analyzed compared with theoretical formula. Subsequently, an asymmetric uncoupled technique proposed used field blasting. results show that numerical consistent decreases exponentially increase in distance. Overall, significantly average by 22.64% original velocity.