上海市地面沉降监测标的设计原理与施工技术

介绍上海市地面沉降监测标的设计原理、演变优化过程和施工技术特点、应用探矿工程技术将不同埋深地层的标高引至地面进行联测而设计施工的特殊钻孔结构。历经数十年的探索与实践，建立起３２座由一个基岩标和若干个分层标组成的监测站，形成上海市地面沉降监测系统，准确及及时地反映上海市软土地层的沉降状况。

DesignPrinciple and Construction Technique of Ground Subsidence Monitoring Bench Mark inShanghai

The design principle of the ground subsidence monitoring bench march in Shanghai is described all rounds with its evolution, optimisation and construction features. The mineral exploration engineering theory and techniques are applied to design special borehole structures so as to convert the elevations of the formations at different depths to the ground level for correlating measurement. A total of 32 monitoring stations each consisting of one bedrock bench marks and several step bench marks have been set up for decades of years to form the ground subsidence monitoring system in Shanghai, which reflects the soft ground subsidence in Shanghai accurately and in time.