摘要
强制归心墩在控制测量中广泛应用,具有良好的稳定性,可有效减少仪器对中误差,增加测量精度。在隧道未全断面贯通且工期紧张时,采用临时强制归心墩提前进行CPⅡ控制网布设,对节约工期时间具有重大意义。
With a good stability,mandatory centering piers are widely used in the control survey,which can effectively reduce the error in the instrument and increase the accuracy of measurement. When the whole section of the tunnel is not running-through and the duration is limited,advanced laying out of CPⅡ control network with temporary mandatory centering pier is of great significance for duration saving.
出处
《铁道建筑技术》
2015年第9期86-89,共4页
Railway Construction Technology
关键词
强制归心墩
隧道
CPⅡ控制网
mandatory centering pier
tunnel
CPⅡ control network
