冲击载荷作用下隧道逃生管动力响应研究

为保证隧道塌方时施工人员有足够的逃生空间,结合具体工程,介绍了隧道逃生管设计要点,并对其在冲击荷载作用下的动力响应进行了弹塑性数值模拟。研究表明,逃生管变形随着落石尺寸的增大而增大,随着逃生管壁厚的增大而减小,随着与逃生管端部距离的增大而减小。

Research on Dynamic Response of Tunnel Escape Tubes under Impact Load

In order to ensure enough space for constructors to escape when tunnel collapses and in combination with specific projects,design points of tunnel escape tubes are introduced and elastoplastic numerical simulation of their dynamic response under impact load is carried out.Research shows that escape tube deformation increases with the size increase of falling rocks and decreases with the thickness increase of escape tubes and with the distance increase to the ends of escape tubes.