论文部分内容阅读
针对隧道洞内控制测量目前普遍采用的支导线和双导线网两类方法的不足,研究并提出了一种长大隧道洞内虚拟双导线测量技术方案,采用一条真实存在的支导线和一条内业虚构的虚拟支导线组合成虚拟双导线测量方案,使其既具有常规的支导线简单快捷优点,又具有常规双导线多余观测形成闭合条件的特点,适应现场复杂的测量环境,突破多因素对选点埋桩、测量的限制,在节省费用的同时提高了测量作业效率。
Aiming at the insufficiency of the two kinds of methods of branch wire and double wire mesh, which are widely used in the measurement and control of tunnel tunnels, a virtual two-wire measurement technology scheme for long and large tunnels is studied and proposed. A true branch wire and an inner Industry imaginary virtual branch wire combination into a virtual two-wire measurement scheme, which not only has the advantages of conventional branch wire simple and quick, but also has the characteristics of the conventional two-wire redundant observation to form a closed condition to adapt to the scene of complex measurement environment, breaking the multi-factor Select the point of buried piles, measurement limits, while saving costs while improving the efficiency of measurement operations.