A New Monitoring Method and Its Effection Study on Circular Tower Inclination Displacement during Its Construction Process

Because it is rather difficult to monitor the inclination displacement of the circular tower using the conventional methods during its construction process.a new method named "horizontal distance difference" which is based on the total station instrument without prism is given out in this paper.The method could set the control station according to the project actual situation、do not have to encrypt horizontal control points、do not have to be orientation by backsight with surveyors and has very good commonality and feasibility.The results using filed monitoring data show that the monitoring accuracy of the inclination displacement using the new method could be rather high and meet to the need of inclination displacement monitoring.