By means of similarity analogue and dynamic measurement, the deformation of the secondary grouting of boarding plate free installation is measured by stages and studied. The study confirms that the secondary grouting possesses the ability of long term loading and resistance to deformation. 运用相似模拟方法和动态测试手段,对机械设备无垫板安装二次灌浆层的变形进行了分期测试和研究,证明无垫板安装二次灌浆层具有长期承载和抵抗变形的能力。