一定范围内的变形对于变形体而言是被允许的，但超出其变形允许范围值时，则可能会引发一些灾害。所以确定变形体的变形规律和稳定性显得很重要。对变形体实施变形监测，首要问题是保证变形监测基准网的稳定，平均间隙法是一种在变形监测基准点稳定性分析应用中常用的方法，其在垂直位移监测网的稳定性分析应用中更为广泛。本文利用平均间隙法对一水准监测网的基准点进行了点位稳定性检验，进而确定变形模型，效果良好。%A certain range of deformation for the deformable body is allowed, but beyond the scope of its deformation allows values, it may cause some disasters. So make sure the deformation law and stability of deformable body is very important. The deformation monitoring for deformable body, the primary problem is to guarantee the stability of the deformation monitoring benchmark network, average gap method is a commonly used method in deformation monitoring datum point stability analysis, its application in stability analysis of vertical displacement monitoring network is more widely. In this paper, the method of average gap was carried out for a level monitoring network of datum point stability test to determine the deformation model, the result is good.
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