建筑施工中对工程对象设置若干沉降观测点进行观测,其目的主要是观测在施工过程中直至最后竣工交付使用的建筑物或构筑物随着荷载的增加而产生的沉降情况,及时了解各点沉降的累计值及其最大差值,以便做到中心中有数,如发现不均匀沉降时,可采取必要措施,防止对建筑(构筑)物的危害。建筑(构筑)物的沉降观测点原则上按设计要求布设。当设计无规定时,符合以下情形之一 During the construction of a building, some settlement observation points are set up for observation. The purpose of the observation is mainly to observe the settlement caused by the increase of load during the construction process and until the completion of the construction, and to know the settlement of each point in time The cumulative value and its maximum difference, in order to achieve the center of a few, found uneven settlement, can take the necessary measures to prevent the building (construction) of the hazards. In principle, the settlement observation points of buildings (structures) are laid out according to design requirements. When the design is not specified, one of the following conditions is met