深厚覆盖层基础混凝土建筑物变形监测技术研究和应用

Study and Application of Monitoring Technology on Deformation of Concrete Structure on Deep and Thick Overburden Foundation

深厚覆盖层地基承载力和变形模量相对较低,存在地基沉降大的问题。文章结合工程实例,介绍了采用预埋钢管标的方法观测水工混凝土建筑的覆盖层基础(软弱基础、软基)的沉降,可以获得从建筑物施工开始的基础沉降值。在混凝土建筑的浇筑全过程中对工程地基基础的沉降变形进行全过程跟踪监测,监测成果反馈可指导混凝土浇筑施工和建筑物后期运行。

Both bearing capacity and deformation modulus of the deep and thick overburden foundation are lower relatively. The large set- tlement of the foundation is inevitable. With the engineering practice, in the paper, settlement of the overburden foundation （soft ＆ weak foundation, soft foundation） of the hydraulic concrete structure monitored by embedment of the steel pipe sign is described. The settle- ment values of the structure from its construction can be available. During the concrete placement of the structure, the set- tlement deformation of the foundation is monitored in the whole process. The monitoring results can guide the concrete placement con- struction and the future structure operation.