基于枕头坝二级水电站混凝土导墙爆破拆除的邻近建(构)筑物动态响应数值模拟研究OACSTPCD

Based on the blasting demolition project of the temporary concrete guide walls in Zhentouba II Hydropower Station,the dynamic response of adjacent buildings and structures during the blasting demolition is studied.The ANSYS-LSDYNA finite element software and equivalent blasting load method are used to simulate the blasting demolition of concrete guide walls,and the dynamic response laws of the structures in adjacent area,including the structure in silicon plant,the brick house in residential area,the ground surface of power plant and the road,are studied under the blasting demolition of single-side concrete guide wall and the simultaneous blasting demolition of both sides concrete guide wall,respectively.The study show that the peak particle velocity at the location of structure is mainly related to the distance between the blasting centre and the structure,and it will decrease with the increase of the distance from explosion centre;the obstruction in the propagation path of blasting seismic wave will affect the peak particle velocity of structures.