圆形塔体施工过程中倾斜位移监测新方法及效用研究

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

针对常规倾斜位移监测方法在圆形结构塔体施工过程中难以开展有效测试的问题,本文给出了一种基于免棱镜全站仪的水平距作差法,该方法具有可以根据工程现场实际情况自由设站、无需加密平面控制点、无需后视定向、作业过程更加简单快捷、通用性更强等优点。现场监测数据结果表明,该方法可以取得较高的监测精度,完全可以满足倾斜位移监测工作的需要。

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 pro- ject actual situation,do not have to encrypt horizontal control points,do not have to be orientation by backsight with sur veyors 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 dis- placement monitoring.