在城市进行建筑物沉降观测时基准点的埋设及其稳定性检验

该文通过沉降观测基准点的埋设类型、埋设方式及各个类型的优缺点等论述分析,从埋设基准点的经济成本、埋设方法简易程度、基准点的稳定性、观测方便程度等综合考虑,得出在城市进行沉降观测时,墙上水准点作为沉降观测基准点是比较理想的埋设方式。同时采用“限差检验法”,详细分析推导出基准点稳定性检验公式,通过实例说明该方法检验基准点稳定性既简单方便,又能快速判断基准点是否稳定。

Based on the discussion and analysis of the embedment type,embedment mode and the advantages and disadvantages of each type of settlement observation benchmark,this paper comprehensively considers the economic cost of embedment the benchmark,the simplicity of the embedment method,the stability of the benchmark,the convenience of observation and so on.It is concluded that when the settlement observation is carried out in the city,it is an ideal way to bury the benchmark on the wall as the benchmark of settlement observation.At the same time,the stability test formula of the benchmark is analyzed and deduced in detail by using the"finite difference method".The example shows that this method is not only simple and convenient to test the stability of the benchmark,but also can quickly judge whether the benchmark is stable or not.