建筑物的沉降不均匀,或异常的沉降量,是属于不正常的现象,造成建筑物倾斜。造成这个严重后果的主要原因:第一、是基础柱质量不好,或柱短缺所至。第二、是没有利用沉降观测这一利手段进行把关。建筑物的沉降过程分为缓慢—活跃—缓慢—稳定。建筑物各沉降期沉降量为20mm之内,各个观测点之间最大沉降量差为20mm之 The uneven settlement of the building or the abnormal settlement is an abnormal phenomenon that causes the building to lean. The main cause of this serious consequence: First, the quality of the foundation column is not good, or the column is short of it. Second, there is no use of settlement measures to make checks. The settlement process of buildings is divided into slow-active-slow-stability. The settlement of buildings in each settlement period is within 20mm, and the maximum settlement difference between observation points is 20mm.