标题：Simulation Analysis of Frame Structure Acceleration Response in Subway Buried Blasting
作者：Guo, Weina; Bi, Weiguo; Ren, Sijian
通讯作者：Bi, Weiguo;Bi, WG
作者机构：[Guo, Weina; Bi, Weiguo; Ren, Sijian] Shandong Univ Sci & Technol, Sch Civil Engn & Architecture, Qingdao 266590, Shandong, Peoples R China.
会议名称：5th International Conference on Environmental Science and Civil Engineering (ESCE)
会议日期：APR 13-14, 2019
来源：5TH INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND CIVIL ENGINEERING (ESCE2019)
关键词：shallow blasting; framework; ANSYS/LS-DYNA; acceleration peak
摘要：In order to analyze the response of the acceleration peak in different directions of frame structure to the variation of blasting distance and layer height in the shallow blasting. Based on the shallow blasting of subway, this paper uses ANSYS/LS-DYNA finite element analysis software to construct the framework structure calculation model and simulate the acceleration peak. The results show that the acceleration peak of the frame structure appears between the vertical three-layer and four-floor, and the longitudinal acceleration peak is one order of magnitude larger than the lateral direction. The acceleration peak and the blasting distance are negatively correlated, which is positively correlated with the layer height. Therefore, before the blasting construction, the seismic strengthening of the thin layer of the intermediate layer of the multi-layer frame which is close to the source of the explosion must be carried out.