桥梁在采动过程中因为受到地表变形的影响,结构受力发生改变,除了车辆荷载和自重之外,还会产生附加内力。当附加内力大于桥梁的最大抵抗能力时,桥梁结构将发生破坏。为使桥梁在采动过程中不发生破坏,应对采动区的地表变形进行预测,充分了解采动区桥梁抗倾斜的能力,在桥梁结构破坏之前,对桥梁采取相应的加固措施,减少桥梁破坏带来的经济损失。 As the bridge is affected by the deformation of the ground during the mining process, the structural force changes. In addition to the vehicle load and self-weight, additional internal forces will be generated. When the additional internal force is greater than the maximum resistance of the bridge, the bridge structure will be destroyed. In order to prevent the bridge from being destroyed during mining, the surface deformation of the mining area should be predicted and the anti-tilt ability of the bridge in mining area fully understood. Before the failure of the bridge structure, corresponding reinforcement measures should be taken for the bridge to reduce the damage to the bridge Bring the economic loss.