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从满足施工放样精度高、施工周期短及施工放样实时性要求高必须采用先进的测量仪器设备和可靠的测量技术方案入手， 对目前几种ＧＰＳ定位方法精度进行了试验研究。试验表明： 在短距离（１ｋｍ 以内） 条件下， 只要选择合适的仪器设备， 利用ＧＰＳ快速定位并采取一定的技术措施， 精度可以达到５ｍ ｍ 左右， 满足超高层建筑施工的要求。
To meet the needs of high accuracy of staking out construction, short construction period and high real-time requirements of construction lofting, advanced measuring instruments and reliable measurement technology solutions must be adopted to test the accuracy of several current GPS positioning methods. The test shows that under the condition of short distance (less than 1km), as long as the appropriate equipment and equipment are selected, rapid positioning using GPS and certain technical measures can achieve accuracy of about 5m m, which meets the requirements of super high-rise building construction.