【摘要】 将单圆盾构隧道衬砌结构在地震作用下的动力响应问题,简化为由作用于盾构隧道管片形心的等代地震惯性力与地层抗力组成的受力体系,并据此以计算结构在地震作用下的内力。结果表明,该方法能准确反映单圆盾构隧道在地震作用下的内力最大值,并且简单、实用。更多还原

【Abstract】 The response of single round shield tunnel in soft soil under seismic wave is simplified as a stress system composed of the inertial force acting at the centroid of the shield tunnel and the stratum resisting force,and accordingly the internal forces and responses of the shield tunnel under seismic wave are calculated. The result indicates that this method can reflect accurately the maximum stresses of single round shield tunnel under seismic wave. It is a suitable simple numerical calculation method for engineering design.更多还原